Disclosed are an anti-aging hot aerosol fire extinguishing agent and a preparation method therefor. The anti-aging hot aerosol fire extinguishing agent comprises 60-80% of an oxidizing agent, 2-25% of a high-fire-extinguishing capability reducing agent, 2-25% of a high-burning-rate reducing agent, and 5-15% of a binder. The preparation method comprises: premixing a high-fire-extinguishing capability reducing agent and a high-burning-rate reducing agent, and then carrying out ball milling to obtain a uniform, small-particle-size reducing agent mixture; mixing the mixture with an oxidizing agent and a binder; and adding anhydrous ethanol, mixing, granulating, and drying to obtain an anti-aging hot aerosol fire extinguishing agent. The anti-aging hot aerosol fire extinguishing agent prepared by the present invention has a long service life, high safety, and excellent fire extinguishing performance, and propellant grains do not develop expansion cracks after aging.
Disclosed in the present invention are a multi-stage intelligent fire-fighting system for an integrated cabinet, and a method. The multi-stage intelligent fire-fighting system comprises an integrated cabinet, PACK-stage fire extinguishing apparatuses and a cluster-stage fire extinguishing apparatus, wherein a plurality of battery PACK boxes are provided in the integrated cabinet, a cluster-stage fire-fighting subsystem for overall fire protection of the integrated cabinet is provided in the integrated cabinet, and a PACK-stage fire-fighting subsystem for fire protection of a single battery PACK box is provided on each battery PACK box; the cluster-stage fire-fighting subsystem comprises a power-on detection assembly, a physical detection assembly, the cluster-stage fire extinguishing apparatus, an explosion-proof fan system and an audible and visible alarm, which are provided in the cabinet, and the power-on detection assembly and the physical detection assembly each form start-up cooperation with the cluster-stage fire extinguishing apparatus; and each PACK-stage fire-fighting subsystem comprises a physical detection assembly and a corresponding PACK-stage fire extinguishing apparatus, and the physical detection assembly forms start-up cooperation with the corresponding PACK-stage fire extinguishing apparatus. Double detection is used for the cluster stage, so as to achieve comprehensive fire detection, and physical detection is used for the PACK boxes, thereby reducing the installation space and ensuring a timely response.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
Disclosed in the present invention are a simple multi-level fire-fighting protection system and method for an electrochemical energy storage system. The simple multi-level fire-fighting protection system comprises an energy storage container, pack-level fire-extinguishing apparatuses and installation-level fire-extinguishing apparatuses, wherein several battery clusters are arranged in the energy storage container, several battery pack boxes are arranged in each battery cluster, an installation-level fire-fighting subsystem for overall fire-fighting protection of the energy storage container is arranged in the energy storage container, and a pack-level fire-fighting subsystem for fire-fighting protection of an individual battery pack box is arranged on each battery pack box; the installation-level fire-fighting subsystem comprises a power-on detection assembly, gas fire-extinguishing controllers and the installation-level fire-extinguishing apparatuses, which are arranged in the container, and the power-on detection assembly cooperates with the corresponding installation-level fire-extinguishing apparatuses by means of the corresponding gas fire-extinguishing controllers to realize delayed start-up; and each pack-level fire-fighting subsystem comprises a physical detection assembly and a corresponding pack-level fire-extinguishing apparatus, and the physical detection assembly cooperates with the corresponding pack-level fire-extinguishing apparatus to realize start-up. By means of multi-level cooperation, the present invention improves the effect and reduces costs.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 31/02 - Nozzles specially adapted for fire-extinguishing
A multi-level simple fire-fighting system and method for an all-in-one cabinet. The fire-fighting system comprises an all-in-one cabinet, PACK-level fire extinguishing devices and a cluster-level fire extinguishing device; a plurality of battery PACK boxes are arranged in each all-in-one cabinet, a cluster-level fire-fighting subsystem for overall fire protection of the all-in-one cabinet is arranged in the all-in-one cabinet, and each battery PACK box is provided with a PACK-level fire-fighting subsystem for fire protection of a single battery PACK box; each PACK-level fire-fighting subsystem comprises a plurality of thermosensitive lines and a PACK-level fire extinguishing device, the thermosensitive lines on the inner surfaces of all the battery PACK boxes are connected to the corresponding PACK-level fire extinguishing devices, and any corresponding thermosensitive line is a starting line; and the cluster-level fire-fighting subsystem comprises a plurality of thermosensitive lines and the cluster-level fire extinguishing device, all the thermosensitive lines on the inner wall of the cabinet body are connected to the cluster-level fire extinguishing device, and any corresponding thermosensitive line is a starting line. The fire-fighting system and method can implement a timely response and efficient fire extinguishing.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 31/03 - Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice-versa
Disclosed in the present invention are a multifunctional fire-fighting and protection system and method for an electrochemical energy storage system. The multifunctional fire-fighting and protection system comprises an energy storage container, PACK-level fire extinguishing apparatuses and installation-level fire extinguishing apparatuses, wherein the energy storage container is provided with an installation-level fire-fighting subsystem therein, and each battery PACK box is provided with a PACK-level fire-fighting subsystem thereon; the installation-level fire-fighting subsystem comprises a power-on detection assembly, a gas fire suppression controller, an installation-level fire extinguishing apparatus, an audible and visual alarm, an alarm bell and an explosion-proof ventilation system, which are arranged in the container, the power-on detection assembly forming delayed start cooperation with the corresponding installation-level fire extinguishing apparatus by means of the corresponding gas fire suppression controller, and the power-on detection assembly forming start cooperation with the corresponding audible and visual alarm, alarm bell and explosion-proof ventilation system by means of the corresponding gas fire suppression controller; and each PACK-level fire-fighting subsystem comprises a physical detection assembly and a corresponding PACK-level fire extinguishing apparatus, the physical detection assembly forming start cooperation with the corresponding PACK-level fire extinguishing apparatus. Therefore, by means of multi-level cooperation, the effect is improved, and the cost is reduced.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
6.
RECIPROCATING DISCHARGE FIRE EXTINGUISHING APPARATUS AND FIRE EXTINGUISHING METHOD
A reciprocating discharge fire extinguishing apparatus and a fire extinguishing method. The apparatus comprises a cylinder (1) which has an open upper end and a closed lower end, wherein outer nozzles (11) are provided on the side wall of the upper end of the cylinder; the lower end of a rotating rod (4) is rotationally connected to a bottom wall inside the cylinder; an aerosol generating agent (2) is mounted at the bottom of the cylinder; an upper cover (3) is mounted in the cylinder and may slide up and down; inner nozzles (31) corresponding to the outer nozzles in position are provided on the side wall of the upper cover; a sleeve (32) is provided at the lower side of the upper cover; and the upper end of the rotating rod is connected to the sleeve by means of a reciprocating screw mechanism. The rotating rod is driven by an actuator to rotate, causing the upper cover to reciprocatingly slide up and down by means of the reciprocating screw mechanism. During reciprocating sliding of the upper cover, when the outer nozzles and the inner nozzles are staggered, the fire extinguishing apparatus is in an intermittent period between discharges, enabling combustible gas to gradually vent from inside a battery; and when the outer nozzles and the inner nozzles coincide, discharge of a fire extinguishing medium is implemented, forcing the combustible gas out of a battery compartment, thereby reducing the likelihood of reignition.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
7.
CONSTANT-PRESSURE SPRAYING PULSED FIRE EXTINGUISHING APPARATUS AND FIRE EXTINGUISHING METHOD
A constant-pressure spraying pulsed fire extinguishing apparatus and a fire extinguishing method. The constant-pressure spraying pulsed fire extinguishing apparatus comprises a cylinder body. Two ends of the cylinder body are closed, at least one outer nozzle hole is provided in an upper end surface of the cylinder body, and an inner cover is movably mounted at an upper end of the interior of the cylinder body. The inner cover is provided with an inner nozzle hole arranged at a position corresponding to the position of the outer nozzle hole and capable of being offset from the outer nozzle hole. A telescopic rod is slidingly inserted into the cylinder body from the upper end of the cylinder body, and is threadedly connected to a center hole of the inner cover. When a spring is in an uncompressed state, the outer nozzle hole is offset from the inner nozzle hole, and the fire extinguishing apparatus is in a sealed state. After an aerosol generating agent is activated, the pressure in the cylinder body gradually increases, and a fire extinguishing medium pushes a sliding plug to move. When the pressure on a lower side of the sliding plug is greater than the elastic force of the spring, the telescopic rod moves upwards and drives the inner cover to rotate at the same time. When the outer nozzle hole coincides with the inner nozzle hole, the sliding plug moves to the top, and the pressurized fire extinguishing medium on the lower side of the sliding plug overflows from sliding recesses in the outer circumference of the sliding plug and is released via the inner nozzle hole and the outer nozzle hole.
A62C 13/62 - Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
The present invention relates to a nozzle structure of a fire extinguishing device. The nozzle structure comprises an inner cylinder, wherein the inner cylinder is configured to place a fire extinguishing medium therein; a circle of flanging is provided at an end opening of the inner cylinder; a pressure relief diaphragm, a sealing ring and an end cap are sequentially mounted at the end opening of the inner cylinder; a spray hole is provided at the center of the pressure relief diaphragm, and a sealing plug is mounted at the spray hole; and a circular hole is provided at the center of each of the sealing ring and the end cover. In the present invention, by means of the provision of the pressure relief diaphragm at a nozzle of the fire extinguishing device, the provision of the spray hole in the pressure relief diaphragm, and the mounting of the sealing plug at the spray hole, sealing and moisture-prevention effects are achieved for the inside of the inner cylinder; when the fire extinguishing device is triggered, the sealing plug is flushed out by means of internal pressure, so as to eject the fire extinguishing medium; moreover, the internal pressure is relieved, and when the internal pressure is too high, the pressure can be relieved by tearing by means of tearing grooves in the pressure relief diaphragm. The sealing performance at the nozzle of the fire extinguishing device and the safety performance during ejection and pressure relief are both relatively good.
A pulse-type fire extinguishing device using a liquid fire extinguishing agent, and a fire extinguishing method. The device comprises an outer cylinder (1) and a gas-producing fire extinguishing agent (2) arranged in the outer cylinder, wherein a front cover (3) is provided on the front side of the outer cylinder, and an inner expelling opening (4) is provided in the surface of the front cover; an end surface of the gas-producing fire extinguishing agent is connected to one end of an actuating component (5); a first piston (7) is provided in the outer cylinder, the first piston is slidably connected to rotary rod (6), and the top of the rotary rod is fixedly connected to the center of a rotary cover (8); an external thread (6.1) is provided on the upper side of the rotary rod, and the external thread meshes with an internal thread on an inner ring of the first piston; an outer expelling opening (9) cooperating with the inner expelling opening is provided in the surface of the rotary cover; the inner expelling opening is fixedly connected to the top of an inner cylinder (10), the outer surface of the inner cylinder is slidably connected to the first piston, and a second piston (11) is provided on the lower side of the interior of the inner cylinder; a flexible pouch (12) having a liquid fire extinguishing agent wrapped therein is provided on the upper side of the second piston; an inner pressure-relief hole (13) is provided in the surface of the front cover; and an outer pressure-relief hole (14) cooperating with the inner pressure-relief hole is provided in the surface of the rotary cover. The penetrating capacity of a liquid fire extinguishing agent can be improved, and thus the liquid fire extinguishing agent can penetrate through a flame to reach the root thereof, thereby improving the fire extinguishing capacity.
A reliable aerosol fire extinguishing device and a fire extinguishing method. The device comprises an upper cover, a lower cover and a cylinder, wherein an aerosol fire extinguishing generating agent is provided on the lower cover, and the aerosol fire extinguishing generating agent is in contact with an actuating mechanism, characterized in that a cooling cartridge is provided in the cylinder and contains a coolant; the bottom of the cooling cartridge is connected to the inner wall of the cylinder by means of a spacer mesh; a piston ring is sleeved on the cooling cartridge, and the piston ring is located between the cooling cartridge and the cylinder; and several through holes are provided in the outer wall of the cooling cartridge. The piston ring can prevent the outer wall of the cooling cartridge from being extensively blocked by a molten coolant; by means of the piston ring continuously moving upwards, the release stability of the aerosol fire extinguishing agent can be ensured, and the probability of the aerosol fire extinguishing agent being excessively cooled can also be reduced.
An intermittent discharge fire extinguishing device achieving penetration and a fire extinguishing method, the intermittent discharge fire extinguishing device comprising a housing (1) and a gas-generating fire extinguishing agent (2) provided inside the housing. The front side of the housing is provided with a front cover (3); a nozzle (4) is provided in the surface of the front cover; an end face of the gas-generating fire extinguishing agent is connected to one end of a starting part (5); the housing is internally provided with a piston (7) that is in sliding fit with same; the piston is connected to the bottom of the front cover via a screw (6.1) of a ball screw mechanism (6); the top of the screw is fixedly connected to the center of a rotating cover (8); a liquid fire extinguishing agent (12) is provided between the piston and the front cover; a spray hole (9) is provided in the surface of the rotating cover; a waterproof film (15) is provided between the top of the liquid fire extinguishing agent and the front cover; the waterproof film is internally filled with water-absorbing resin and dry powder; a rotating blade (16) is provided between the top of the waterproof film and the front cover; and the rotating blade is fixed on the surface of the screw (6.1). An intermittent discharge process can be performed continuously, so as to facilitate complete discharge of a flammable gas in batteries in battery cases, thus preventing the risk of re-ignition; the fire extinguishing agent exhibits relatively high penetration.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
12.
INTERMITTENT SPRAY TYPE FIRE EXTINGUISHING APPARATUS HAVING PRESSURE RELIEF STRUCTURE, AND METHOD
Disclosed in the present invention are an intermittent spray type fire extinguishing apparatus having a pressure relief structure, and a method. The fire extinguishing apparatus comprises a housing and a gas-producing fire extinguishing agent arranged in the housing. A front cover is arranged on the front side of the housing. A plurality of nozzles is formed in the surface of the front cover. The end face of the gas-producing fire extinguishing agent is connected to one end of an activation part. A piston in sliding fit with the housing is arranged inside the housing. The piston is connected to the bottom of the front cover by means of a screw of a ball screw mechanism. The top of the screw is fixedly connected to the center of a rotating cover. A liquid fire extinguishing agent is arranged between the piston and the front cover. Spray holes are formed on the surface of the rotating cover. When the rotating cover rotates, the spray holes and the nozzles periodically overlap and intersect. A pressure relief diaphragm is arranged on the surface of some of the nozzles of the front cover surface. The piston comprises an outer ring piston located outside, and an inner piston located inside. The screw is arranged in the inner piston in a penetrating mode. By means of the present solution, an intermittent spray process can be continuously carried out, and the risk of re-combustion is prevented. In addition, pressure relief is achieved, and the safety of the fire extinguishing apparatus in the fire extinguishing process is ensured.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 13/00 - Portable extinguishers which are permanently pressurised or pressurised immediately before use
A62C 3/10 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in ships
A62C 5/00 - Making of fire-extinguishing materials immediately before use
A62C 31/00 - Delivery of fire-extinguishing material
13.
SAFE INTERMITTENT SPRAY TYPE FIRE EXTINGUISHING APPARATUS AND METHOD
Provided are a safe intermittent spray type fire extinguishing apparatus and method. The fire extinguishing apparatus comprises a housing (1) and a gas-producing fire extinguishing agent (2) arranged in the housing (1). A front cover (3) is arranged on the front side of the housing (1). Nozzles (4) are formed on the surface of the front cover (3). The end face of the gas-producing fire extinguishing agent (2) is connected to one end of an activation part (5). A piston (7) in sliding fit with the housing (1) is arranged in the housing (1). The piston (7) is connected to the bottom of the front cover (3) by means of a screw (6.1) of a ball screw mechanism (6). The top of the screw (6.1) is fixedly connected to the center of a rotating cover (8). A liquid fire extinguishing agent (12) is arranged between the piston (7) and the front cover (3). Spray holes (9) are formed in the surface of the rotating cover (8). When the rotating cover (8) rotates, the spray holes (9) and the nozzles (4) periodically overlap and intersect. The piston (7) comprises a thrust piston (7.1) located outside, and a pressure relief piston (7.2) located inside. The screw (6.1) is arranged inside of the pressure relief piston (7.2) in a penetrating manner. A limiting cylinder (15) matched with the pressure relief piston (7.2) is arranged at the center of the bottom of the front cover (3). The fire extinguishing apparatus can continuously carry out the intermittent spray process, and the risk of re-combustion is prevented. In addition, when the fire extinguishing stage is completed, high-pressure gas is released in time, so that the safety of the fire extinguishing apparatus can be ensured.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 31/02 - Nozzles specially adapted for fire-extinguishing
Disclosed in the present invention are an intermittently-spraying fire extinguishing device capable of pressure relief and resetting and a fire extinguishing method. Said fire extinguishing device comprises a housing and a gas-generating fire suppressant provided in the housing. A front cover is arranged on the front side of the housing, and a spray hole is formed in the surface of the front cover, an end surface of the gas-generating fire suppressant being connected to one end of a start component. A rotary shaft rotationally connected to the front cover is arranged in the housing, the surface of the rotary shaft being provided with spiral blades, and the top of the rotary shaft being fixedly connected to the center of a rotary cover located on the upper side of the front cover. A spray opening is formed in the surface of the rotary cover, such that when the rotary cover rotates, the spray opening periodically aligns and misaligns with the spray hole. The lower side of the front cover is connected to the top of a pressure relief disc by means of a pressure relief spring, a positioning rod fitted to the spray hole being provided on the upper side of the pressure relief disc. The present invention can continuously perform an intermittent spraying process, thereby preventing the risk of reburning; in addition, when an abnormal sudden increase occurs in the internal pressure of the housing, the spray opening and the spray hole can be kept in communication so as to relieve pressure in time, and the intermittent spraying process can be resumed when the internal pressure of the housing returns to normal.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 31/05 - Nozzles specially adapted for fire-extinguishing with two or more outlets
An alternating high and low pressure intermittent-release fire extinguishing device, comprising: a cylinder body (1), where an aerosol generating device (2) is mounted at one end of the cylinder body (1), a spray cover (5) is slidably mounted at the other end of the cylinder body (1), and a gas flow channel (7) is formed in the cylinder body (1) between the aerosol generating device (2) and the spray cover (5); a fan (3) is rotatably mounted in the gas flow channel (7), one end of a transmission rod (4) eccentrically articulates with an end face of the fan (3), and the other end of the transmission rod (4) is hinged to the spray cover (5); a conventional nozzle (51) and a pulsating nozzle (52) are arranged on the spray cover (5), the conventional nozzle (51) is located outside the cylinder body (1), and the pulsating nozzle (52) intermittently extends out of the cylinder body (1) when driven by the fan (3); and a flow guide structure (8) is arranged in the gas flow channel (7) at the side of the fan (3) close to the aerosol generating device (2). The conventional nozzle (51) and the pulsating nozzle (52) form low pressure and high pressure reciprocating circulation format to release a fire extinguishing gas; when at low pressure, the device can stifle flames and cause inflammable gas within a battery to be discharged; and when at high pressure, the inflammable gas can be pushed out of the a battery compartment, thus effectively suppressing and extinguishing a fire caused by thermal runaway of a new energy battery. Further disclosed is a fire extinguishing method utilizing the alternating high and low pressure intermittent-release fire extinguishing device.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 31/03 - Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice-versa
A62C 5/033 - Making of fire-extinguishing materials immediately before use of gel
An intermittent spraying type liquid fire extinguishing apparatus having a speed reducing mechanism, comprising a housing (1) and a gas-producing fire extinguishing agent (2) arranged in the housing (1). A front cover (3) is arranged on the front side of the housing (1), and a surface of the front cover (3) is provided with a nozzle (4). An end surface of the gas-producing fire extinguishing agent (2) is connected to one end of a starting component (5). A piston (7) in sliding fit with the housing (1) is disposed in the housing (1), and the piston (7) is connected to the bottom of the front cover (3) by means of a screw (6.1) of a ball screw rod mechanism (6). The top of the screw (6.1) is fixedly connected to the center of a rotating disc (8). A liquid fire extinguishing agent (12) is arranged between the piston (7) and the front cover (3). A spraying hole (9) is formed on a surface of the rotating disc (8). When the rotating disc (8) rotates, the spraying hole (9) and the nozzle (4) are periodically overlapped and staggered. Further disclosed is a fire extinguishing method for the intermittent spraying type liquid fire extinguishing apparatus having a speed reducing mechanism, so that an intermittent spraying process can be carried out continuously, to enable the pressure in a battery compartment to be periodically increased and decreased, a combustible gas inside a battery in the battery compartment can be completely discharged, and the risks of reburning is prevented.
A62C 3/07 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 31/02 - Nozzles specially adapted for fire-extinguishing
17.
INTERMITTENT SPRAY FIRE EXTINGUISHING DEVICE USING LIQUID FIRE EXTINGUISHING AGENT, AND METHOD THEREOF
An intermittent spray fire extinguishing device using a liquid fire extinguishing agent, comprising a housing (1) and a gas-generating fire extinguishing agent (2) provided in the housing (1). A front cover (3) is provided on a front side of the housing (1), spray orifices (4) being formed in the surface of the front cover (3). An end surface of the gas-generating fire extinguishing agent (2) is connected to an end of an activation component (5). A piston (7) in sliding fit with the housing (1) is provided in the housing (1), and the piston (7) is connected to the bottom of the front cover (3) by means of a lead screw (6.1) of a ball screw mechanism (6), the top of the lead screw (6.1) being fixedly connected to the center of a rotating cover (8), and external threads (6.1.1) of the lead screw (6.1) being divided into multiple sections at equal intervals. A liquid fire extinguishing agent (12) is provided between the piston (7) and the front cover (3), and spray holes (9) are formed in the surface of the rotating cover (8). When the rotating cover (8) rotates, the spray holes (9) and the spray orifices (4) are periodically aligned and misaligned with each other to continuously perform an intermittent spraying process, such that the pressure in a battery compartment periodically increases and decreases, helping to completely discharge combustible gas from batteries in the battery compartment to avoid the risk of re-combustion. Further disclosed is a fire extinguishing method of the intermittent spray fire extinguishing device using a liquid fire extinguishing agent.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 5/00 - Making of fire-extinguishing materials immediately before use
A62C 31/03 - Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice-versa
An intermittent spraying type fire extinguishing device having fan blades (7) and a fire extinguishing method, wherein the intermittent spraying type fire extinguishing device comprises a housing (1) and a gas-producing fire extinguishing agent (2) provided in the housing (1); a front cover (3) is arranged on the front side of the housing (1); nozzles (4) are formed on the surface of the front cover (3); an end face of the gas-producing fire extinguishing agent (2) is connected to one end of a starting part (5); a rotating shaft (6) rotatably connected to the front cover (3) is arranged in the housing (1); helical blades are arranged on the surface of the rotating shaft (6); the top of the rotating shaft (6) is fixedly connected to the center of a rotating cover (8); spraying holes (9) are formed on the surface of the rotating cover (8); when the rotating cover (8) rotates, the spraying holes (9) coincide and are staggered with the nozzles (4) periodically. An intermittent spraying process can be continuously carried out, so that the pressure of a battery compartment increases and decreases periodically, facilitating complete discharge of combustible gas inside batteries in the battery compartment, avoiding the risk of re-ignition.
Disclosed in the present invention are an intermittent-discharge-type fire extinguishing device having a fan blade and a speed reducing mechanism, and a fire extinguishing method. The device comprises a shell and a gas-producing fire extinguishing agent arranged in the shell, wherein a front cover is provided on the front side of the shell, and the surface of the front cover is provided with spray ports; an end face of the gas-producing fire extinguishing agent is connected to one end of an actuation component; a rotating shaft rotatably connected to the front cover is provided in the shell, a fan blade is fixed on the lower side of the rotating shafts, and the top side of the rotating shaft is fixedly connected to the centers of two rotating discs by means of a speed reducing mechanism; and the surfaces of the rotating discs are provided with spray holes, and when the rotating discs rotate, the spray holes and the spray ports periodically overlap and stagger. The present invention can continuously carry out an intermittent discharge process, and thus the pressure in a battery case is periodically increased and reduced, facilitating the exhaust of flammable gas from inside a battery in the battery case, and eliminating the risk of reignition.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 31/00 - Delivery of fire-extinguishing material
A62C 13/22 - Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals with incendiary substances producing pressure gas
A62C 5/00 - Making of fire-extinguishing materials immediately before use
A62C 3/00 - Fire prevention, containment or extinguishing specially adapted for particular objects or places
H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
H01M 50/383 - Flame arresting or ignition-preventing means
20.
INTERMITTENT SPRAYING FIRE EXTINGUISHING DEVICE AND METHOD USING AEROSOL BOOSTING LIQUID FIRE EXTINGUISHING AGENT
An intermittent spraying fire extinguishing device and method using an aerosol boosting liquid fire extinguishing agent, the fire extinguishing device comprising a shell (1) and an aerosol generating fire extinguishing agent (2) arranged in the shell (1). A front cover (3) is provided on the front side of the shell (1), and nozzles (4) are formed on a surface of the front cover (3). An end surface of the aerosol generating fire extinguishing agent (2) is connected to one end of an activation part (5). The shell (1) is internally provided with a piston (7) slidably fitted with the shell, and the piston (7) is connected to the bottom of the front cover (3) by means of a threaded rod (6.1) of a ball screw mechanism (6). The top of the threaded rod (6.1) is fixedly connected to the center of a rotatable cover (8). A liquid fire extinguishing agent (12) is provided between the piston (7) and the front cover (3). Spray holes (9) are formed on the surface of the rotatable cover (8). When the rotatable cover (8) rotates, the spray holes (9) and the nozzles (4) are periodically overlapped and staggered.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
A62C 5/00 - Making of fire-extinguishing materials immediately before use
A62C 31/00 - Delivery of fire-extinguishing material
A62C 31/28 - Accessories for delivery devices, e.g. supports
21.
FIRE EXTINGUISHING AGENT PELLET CUTTING AND COATING SYSTEM AND METHOD
Disclosed in the present invention are a fire extinguishing agent pellet cutting and coating system and method. The fire extinguishing agent pellet cutting and coating system comprises a cutting mechanism and a coating mechanism, wherein the coating mechanism comprises a silicone coating groove, the cutting mechanism comprises a vertical cutting machine, a sliding groove is provided in the silicone coating groove, the sliding groove is in sliding fit with positioning feet, and the positioning feet are used for supporting fire extinguishing agent pellets; and a rotatable and movable limiting cylinder is provided on a cutting platform of the vertical cutting machine, and a cutter belt for vertical cutting is provided above the limiting cylinder. The present invention can perform cutting and coating processes on cylindrical fire extinguishing agent pellets, such that fire extinguishing agent pellets with a combustion section that can continuously increase and decrease can be quickly produced.
B26D 1/18 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable carriage
22.
FIRE EXTINGUISHING AGENT PELLET COATING AND CUTTING SYSTEM AND METHOD
A fire extinguishing agent pellet coating and cutting system and a method. The fire extinguishing agent pellet coating and cutting system comprises a coating mechanism (1) and a cutting mechanism (3), wherein the coating mechanism comprises a cylinder (1.1) sleeved outside a fire extinguishing agent pellet (2), silicone (4) is injected in a gap between the outer side of the fire extinguishing agent pellet and the inner side of the cylinder, and a base (1.2) fitted with the bottom of the cylinder is provided at the bottom of the fire extinguishing agent pellet; the cutting mechanism comprises a vertical cutting machine (3.1), a support mount (1.3) is also provided at the bottom of the fire extinguishing agent pellet and the top of the base, a support rod (1.4) is provided on the surface of the support mount and is fitted with a limiting groove in the bottom of the fire extinguishing agent pellet; and a rotatable and movable limiting cylinder (3.3) is provided on a cutting platform of the vertical cutting machine, and a cutter belt (3.4) for vertical cutting is provided above the limiting cylinder. The fire extinguishing agent pellet coating and cutting system and method can perform coating and cutting processes on cylindrical fire extinguishing agent pellets, such that fire extinguishing agent pellets with a combustion section that can continuously increase and decrease can be produced.
B26D 1/46 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having an endless band-knife or the like
C06B 21/00 - Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
23.
FIRE EXTINGUISHING APPARATUS HAVING PERIODICALLY CHANGING SPRAYING STRENGTH, AND BATTERY COMPARTMENT FIRE EXTINGUISHING METHOD
A fire extinguishing apparatus having periodically changing spraying strength, and a battery compartment fire extinguishing method. The fire extinguishing apparatus comprises a housing (1) and a fire extinguishing agent column (2) provided in the housing; a front cover (3) is provided on the front side of the housing; spraying openings (4) are formed in the surface of the front cover; an end surface of the fire extinguishing agent column is connected to one end of a starting component (5); the combustion cross section of the fire extinguishing agent column periodically continuously increases and continuously decreases. It is ensured that combustible gas generated in a battery can basically escape, thereby greatly reducing the risk of re-combustion, and effectively preventing the risk that a large amount of combustible gas in the battery overflows after the fire extinguishing apparatus stops spraying.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 31/02 - Nozzles specially adapted for fire-extinguishing
24.
FIRE EXTINGUISHING DEVICE WORKING IN CONJUNCTION WITH IMPULSE FIRE EXTINGUISHING DEVICE AND FIRE EXTINGUISHING METHOD
A fire extinguishing device working in conjunction with an impulse fire extinguishing device and a fire extinguishing method. The fire extinguishing device comprise a shell (1) and a fire extinguishing agent grain (2) arranged on one side in the shell, wherein spray nozzles (3) are formed in the side of the shell close to the fire extinguishing agent grain, the fire extinguishing agent grain is connected to a pressure-sensitive combustion agent (5) by means of a thermosensitive line (4), and the pressure-sensitive combustion agent is provided inside one end of a starter shell (6); one end of the starter shell is hingedly connected to the inner side of the shell, and the other end thereof is fitted with a limiting pin (8) by means of a limiting sleeve (7); a limiting pull rod (9) matching the limiting pin penetrates through the limiting sleeve; an impact disc (10) is arranged on one side of the limiting pull rod; a compression spring (11) is arranged between the impact disc and the other end of the starter shell; a support spring (12) is arranged between the bottom of the starter shell and the bottom of the shell; the top of the starter shell matches the bottom of a pressure-sensitive cover (14); one side of the pressure-sensitive cover is hingedly connected to one side of the shell; and the pressure-sensitive cover directly faces the spraying end of an impulse fire extinguishing device (16). According to the fire extinguishing device working in conjunction with an impulse fire extinguishing device and the fire extinguishing method, the continuous fire extinguishing effect of the fire extinguishing device can be improved, and high temperature and explosive gases of batteries can be continuously inhibited by means of the continuous fire extinguishing process.
A pulse-type fire extinguishing device capable of sustained flame suppression and a fire extinguishing method therefor. The device comprises an outer shell (1) and a pulse fire extinguishing agent (2) disposed inside the outer shell. A top portion of the pulse fire extinguishing agent is connected to a tail end of a first starting wire harness (3.1) of a starting component (3). An upper side of the outer shell is provided with an upper cover (4), and a nozzle (5) is provided on a surface of the upper cover. An inner shell (6) is disposed inside the pulse fire extinguishing agent. Fire extinguishing agent grains (7) are disposed inside the inner shell. A top portion of the fire extinguishing agent grains is connected to a tail end of a second starting wire harness (3.2) of the starting component. A top portion of the inner shell is provided with an insulated discharge pipe (8). A contact ball (9) is restrictively positioned at the top of the insulated discharge pipe, the bottom of the insulated discharge pipe is closed, and a side portion of the insulated discharge pipe is provided with a gas passage through-hole (17). Two contact plates (10) pass through a lower side of the insulated discharge pipe, and are connected to the second starting wire harness. When the contact ball falls, the contact ball makes contact with the contact plates and engages therewith. Flames can be instantly extinguished by means of a rapid fire extinguishing process, while sustained suppression of high temperatures and explosive gases from batteries can be achieved by means of a sustained fire extinguishing process.
A pulse type fire extinguishing device for coping with an explosion, and a fire extinguishing method. The device comprises a housing (1) and a pulse fire extinguishing agent (2) arranged on one side in the housing; spraying openings (3) are formed in the side of the housing close to the pulse fire extinguishing agent; a starting housing (6) is arranged on one side of the pulse fire extinguishing agent; heat conduction holes (4) are formed in one side of the starting housing; a pressure-sensitive combustion agent (5) is arranged on the inner side of the starting housing close to the heat conduction holes; one end of the starting housing is hingedly connected to the inner side of the housing, and the other end of the starting housing is fitted with a limiting pin (8) by means of a limiting cylinder (7); a limiting pull rod (9) fitted with the limiting pin is arranged in the limiting cylinder in a penetrating mode; an impact disc (10) is arranged on one side of the limiting pull rod; a compression spring (11) is arranged between the impact disc and the other end of the starting housing; a supporting spring (12) is arranged between the bottom of the starting housing and the bottom of the housing; the top of the starting housing works in conjunction with the bottom of a pressure-sensitive cover (14); and one side of the pressure-sensitive cover is hingedly connected to one side of the housing. Therefore, the defect of a conventional pulse type fire extinguishing device needing a period of time to start a fire extinguishing process is effectively overcome.
A pulse-type fire extinguishing device capable of preventing flame shooting, and a fire extinguishing method therefor. The pulse-type fire extinguishing device comprises an outer housing (1) and a pulse fire-extinguishing agent (2), which is arranged inside the outer housing, wherein the top of the pulse fire-extinguishing agent is connected to the tail end of a starting wire harness of a starting component (3); a heat dissipation multi-channel structure (4) is fixedly provided above the pulse fire-extinguishing agent; the top of the heat dissipation multi-channel structure is provided with an inner housing (5), which is in sliding fit with the interior of the outer housing; the top of the inner housing is provided with an inner isolation mesh (6); a side portion of the inner housing is provided with an inner ejection opening (7); a side portion of the outer housing is provided with an outer ejection opening (8), which matches the inner ejection opening; and the top of the outer housing is provided with an outer isolation mesh (9). By means of the pulse-type fire extinguishing device capable of preventing flame shooting and the fire extinguishing method therefor, an ejected substance contains very few particles which are not completely combusted, such that a phenomenon of shooting flames is less prone to occurring.
An aerosol fire extinguishing device capable of coping with an explosion condition and a fire extinguishing method therefor. The aerosol fire extinguishing device comprises a shell (1), wherein a fire extinguishing agent grain (2) is arranged in the shell, the top of the fire extinguishing agent grain is connected to the tail ends of starter harnesses (3.1) of a starter part (3), an insulating spraying pipeline (4) is arranged at the top of the shell, a contact ball (5) is arranged at the top of the insulating spraying pipeline in a limiting mode, the bottom of the insulating spraying pipeline is closed, air vent holes (6) are formed in the side of the insulating spraying pipeline, two contact plates (7) penetrate through the lower side of the insulating spraying pipeline, the contact plates are communicated with the starter harnesses, and when falling down, the contact ball is in contact-fit with the contact plates. The aerosol fire extinguishing device for coping with the explosion condition and the fire extinguishing method therefor defectively overcomes the defect that traditional aerosol fire extinguishing devices require a certain delay before being started for the fire extinguishing process and even fail to be started for the fire extinguishing process for a fire disaster under the explosion condition.
A preparation process and system for an aerosol gas-producing agent, the system mainly comprising a raw material preparation system, a material mixing system, a granulation system, a drying system, a screening system, a cartridge loading system, a filling and compressing system, a tableting system, a conveying system, etc. The production line proposed in the present invention can achieve automated production for the processes of raw material crushing, adhesive preparation, feeding, mixing, granulation, drying, screening, weighing and cartridge loading, palletization, tableting, compressing, and logistics transportation. Except for raw material palletization, conveyance of raw materials to designated locations, pallet replacement, cartridge replacement, and chemical agent packing, which are manually performed, all other process operations on the production line are carried out by driving cylinders or explosion-proof motors, and the operations are simple, practical, and reliable.
A high-temperature thermal initiator and a preparation method therefor and a use thereof. The preparation method comprises: respectively screening an oxidizing agent, a reducing agent, a binder, and an additive, and performing preliminary mixing to obtain a mixture (S1); uniformly dispersing and mixing the mixture with a solvent to form a slurry (S2); attaching the slurry to a fuse by means of an extrusion process, and drying same to obtain an agent core (S3); and winding a wire sheath on the surface of the agent core, and applying a moisture-proof curing adhesive to obtain a high-temperature thermal initiator (S4). Finally, a high-temperature thermal initiator having a sensing temperature of 350°C±50°C is prepared. The high-temperature thermal initiator can be applied to an application scenario in which the temperature is gradually increased and the ignition temperature is high, such as an energy storage power station, so that after ignition, a fire extinguishing device is quickly started to implement fire extinguishing, thereby ensuring the optimal fire extinguishing performance, and avoiding large disasters caused by a fire extinguishing effect being affected by the settlement or escape of a fire extinguishing medium due to an early start of the fire extinguishing device.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 37/11 - Releasing means, e.g. electrically released heat-sensitive
An anti-scratching and anti-cracking thermo-sensitive line and a preparation method therefor. The exterior of a thermo-sensitive line core is coated with a layer of modified line sheath, and then is wrapped with a layer of wrapping film, such that the thermo-sensitive line sheath is of a double-layer structure. The outermost wrapping film can be resistant to scratching, and prevent the problem of the thermo-sensitive line core being affected with damp and failing due to the breakage of the line sheath caused by scratching. Moreover, a toughening agent and an auxiliary material are added to the inner modified line sheath during preparation, so that the toughness of the line sheath is improved while ensuring thermal conductivity and not affecting a starting temperature interval of the thermo-sensitive line, preventing the problem of line sheath cracking due to excessive bending during mounting of the thermo-sensitive line, and thus improving the use practicability of the thermo-sensitive line in a use scene and prolonging the service life.
Provided in the present invention are a high-insulation low-corrosion pulse-type aerosol fire extinguishing agent and a preparation method therefor. The fire extinguishing agent comprises the following components in parts by mass: 60-80 parts of an oxidizing agent, 10-30 parts of a reducing agent, 5-10 parts of an adhesive, 1-5 parts of a lubricating agent, and 1-5 parts of an auxiliary agent, wherein the auxiliary agent is polyacrylonitrile and/or polyvinylpyrrolidone; the oxidizing agent is strontium nitrate; the reducing agent is agarose and/or lignin; the adhesive is a furan resin and/or melamine resin; and the lubricating agent is boron carbide. The fire extinguishing agent has the characteristics of high strength, low density and a high burning rate, and has a greatly improved fire extinguishing capability, and effectively reduces the fire extinguishing concentration of an S-type aerosol agent.
Provided in the present invention are a chemical coolant and the use thereof in aerosol-based fire extinguishing. The chemical coolant comprises the following components in percentage by mass: 20-70% of an organic flame retardant, 20-70% of a phosphate, 2-10% of a binder, and 2-40% of an additive. In the present invention, by adding a phosphate which is liable to undergo a decomposition reaction and has a fire extinguishing capacity to the coolant, not only can the temperature of an aerosol outlet be effectively reduced, but the concentration of an aerosol is also increased, the fire extinguishing capacity of an aerosol fire-extinguishing agent is thus improved, and a very small amount of final residues are generated; moreover, a given amount of a potassium-containing substance can be further added to the coolant, so as to increase the concentration of a potassium salt in the aerosol and improve the fire extinguishing capacity.
Provided in the present invention are a flameless thermosensitive wire and a preparation method therefor. A thermosensitive wire core comprises the following components in parts by mass: 70-85 parts of a temperature-sensing agent, 8-15 parts of an oxidizing agent, 1-5 parts of a catalyst, and 4-10 parts of a flame inhibitor, wherein the catalyst is cerium dioxide or manganese dioxide. The flame inhibitor can disperse heat generated by the combustion of the wire core; therefore, heat accumulation is avoided, and the combustion temperature is reduced. However, due to the addition of the flame inhibitor, the combustion speed of the thermosensitive wire is slow. In the present invention, by adding cerium dioxide or manganese dioxide as a catalyst, the combustion of the thermosensitive wire can be accelerated, the thermosensitive wiree can be ensured to meet the practical requirement for quick action of an automatic fire-extinguishing device, the complete combustion can be promoted, the generation of combustible gases such as CO can be reduced, and the flameless combustion effect of the thermosensitive wire can be ensured.
C06B 29/20 - Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal with a nitrated organic compound the compound being nitrocellulose
C06B 31/22 - Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate with a nitrated organic compound the compound being nitrocellulose
C06B 23/00 - Compositions characterised by non-explosive or non-thermic constituents
C06B 21/00 - Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
Provided in the present invention are a low-speed suppression type aerosol fire extinguishing agent and a preparation method therefor. The low-speed suppression type aerosol fire extinguishing agent comprises the following components in percentage by mass: 60-70% of an oxidizing agent, 10-30% of a reducing agent, 5-10% of an adhesive, and 5-10% of a conditioning agent, wherein the adhesive is one of or a mixture of several of an epoxy resin, a glycidyl azide polymer, poly(glycidyl nitrate) or alkenyl polyethylene glycol; and the conditioning agent is one or more of wood flour, bentonite or clay. By adding an appropriate amount of the conditioning agent to the aerosol fire extinguishing agent, the spraying speed of chemicals is slowed down. However, the amount of the conditioning agent needs to be controlled to ensure that the gas production rate of the fire extinguishing agent per unit of time is maintained sufficient; and if there is an excessively large amount of the conditioning agent, the chemicals themselves are difficult to ignite. In the present invention, a plurality of adhesives are added, and the combined action thereof makes the energy content of the adhesives greatly increased, thereby achieving the effects of being easily ignited, uniform gas production and a low spraying speed.
A detection, starting and pressure relief integrated aerosol fire extinguishing device and fire extinguishing and pressure relief methods, the detection, starting and pressure relief integrated aerosol fire extinguishing device comprising a housing (1), wherein a fire extinguishing agent (2) is provided in the housing, a nozzle (3) is provided at the front end of the housing, and a coolant (9) is also provided between a top surface of the fire extinguishing agent and the nozzle; and an end surface of the fire extinguishing agent is in contact with an ignition head (4), the ignition head is a bridgeless ignition head, a starting line (4.1) of the ignition head passes out of the front end of the housing and is connected to an output end of a piezoelectric ceramic (5), the piezoelectric ceramic is mounted in a pressure relief groove (6) in the front end of the housing, and a glass bulb temperature sensing tapping device (7) is provided above the piezoelectric ceramic. According to the detection, starting and pressure relief integrated aerosol fire extinguishing device and the fire extinguishing and pressure relief methods, a mounting cylinder, the piezoelectric ceramic and the glass bulb temperature sensing tapping device are arranged in an area where the pressure relief groove is located, such that a detection function, a starting function and a pressure relief function are integrated in a small area, enabling a simple structure, sensitive detection, and safe startup.
Disclosed in the present invention are a detection, starting and pressure relief integrated fire extinguishing apparatus, a mounting method and a fire extinguishing method. The apparatus comprises a housing; a fire extinguishing agent is provided in the housing; a nozzle is formed in the front end of the housing; the end surface of the fire extinguishing agent makes contact with an electric match; a starting line of the electric match penetrates out of the front end of the housing and is connected to an output end of a piezoelectric ceramic; the piezoelectric ceramic is mounted in a pressure relief recess at the front end of the housing; and a detection tapping apparatus is provided above the piezoelectric ceramic. According to the present invention, by means of a mounting cylinder, the piezoelectric ceramic and the detection tapping apparatus which are arranged in an area where the pressure relief recess is located, the detection, starting and pressure relief functions are integrated in a small area, and simple structure, sensitive detection and safe starting are achieved.
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 5/00 - Making of fire-extinguishing materials immediately before use
A detection, starting and pressure relief all-in-one fire extinguishing apparatus, comprising a housing (1). A fire extinguishing agent (2) is provided in the housing; a nozzle (3) is formed at the front end of the shell; a coolant (9) is further arranged between the top surface of the fire extinguishing agent and the nozzle; the end face of the fire extinguishing agent comes into contact with an igniter (4); a starting wire (4.1) of the igniter extends out of the front end of the housing and is connected to an output end of a piezoelectric ceramic (5); the piezoelectric ceramic is mounted in a pressure relief slot (6) at the front end of the housing; an impact detection device (7) is arranged above the piezoelectric ceramic. By means of a mounting cylinder, the piezoelectric ceramic and the impact detection device which are arranged in the area where the pressure relief slot is located, the detection, starting and pressure relief functions are integrated in a small area, the structure is simple, detection is sensitive, and starting is safe.
A pulse-coupled aerosol fire extinguishing device for dealing with explosion and high temperature conditions and a method. The device comprises an inner housing (1) and an outer housing (9), a fire extinguishing agent grain (2) being provided in the inner housing, an inner nozzle (3) being formed at the front end of the inner housing, and an outer nozzle (13) being formed at the front end of the outer housing; an end surface of the fire extinguishing agent grain is in contact with a first ignition head (4), a first starting line (4.1) of the first ignition head passing out of the front end of the inner housing and being connected to an output end of piezoelectric ceramic (5); the piezoelectric ceramic is installed in a pressure relief recess (6) at the front end of the inner housing, and a glass bubble temperature sensing and tapping device (7) is provided above the piezoelectric ceramic; the space between the outer side of the inner housing and the inner side of the outer housing is filled with a pulse fire extinguishing agent (10), the top surface of the pulse fire extinguishing agent being in contact with a second ignition head (11), a second starting line (11.1) of the second ignition head being connected to a vibration switch (12), and communicating holes (14) being formed in the lower side wall of the inner housing. The pulse-coupled aerosol fire extinguishing device and method solve the problem on continuous suppression for explosion or thermal runaway in a fire extinguishing area, thus achieving a good explosion suppression effect.
A self-resetting pressure relief structure capable of stabilizing pressure, provided on a housing (1) and comprising a front cover (2), a movable part (3) and an elastic element (4). The front cover (2) is fixedly installed on the housing (1), a sliding hole (201) is formed in the front cover (2), and the movable part (3) passes through the sliding hole (201) and can slide in the axial direction thereof, the sizes of two ends of the movable part (3) being greater than the axial size of the sliding hole (201); the elastic element (4) is arranged in the axial direction of the movable part (3), one end of the elastic element (4) abutting against the front cover (2), the other end thereof abutting against one end of the movable part (3), and the elastic element (4) being in linkage with the movable part (3); the front cover (2) is further provided with gas discharge holes (202) and pressure relief holes (203) communicating the inside and outside of the housing (1), when the movable part (3) is in a natural state, one end of the movable part (3) seals the pressure relief holes (203), and when the movable part (3) moves axially, the pressure relief holes (203) are opened. The pressure relief structure not only can automatically relieve pressure when pressure is high, but also can automatically reset after the pressure is reduced, thus keeping a relatively stable pressure state in the housing (1), achieving high reliability and good stability, and being less susceptible to failure.
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
F16K 17/164 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side and remaining closed after return of the normal pressure
AEROSOL FIRE EXTINGUISHING DEVICE HAVING INTEGRATED DETECTION, ACTIVATION, AND PRESSURE RELIEF FUNCTIONS, INSTALLATION METHOD, AND FIRE EXTINGUISHING METHOD
Disclosed in the present invention are an aerosol fire extinguishing device having integrated detection, activation, and pressure relief functions, an installation method, and a fire extinguishing method. The device comprises a shell; a fire extinguishing agent is provided in the shell; a nozzle is formed at the front end of the shell; the end surface of the fire extinguishing agent makes contact with an igniter; the igniter is a bridgeless igniter; an activation line of the igniter passes through the front end of the shell and is connected to the output end of piezoelectric ceramic; the piezoelectric ceramic is installed in a pressure relief channel on the front end of the shell; a glass bulb temperature sensing impact device is arranged above the piezoelectric ceramic. The present invention integrates detection, activation, and pressure relief functions into a small area by means of an installation cylinder, the piezoelectric ceramic, and the glass bulb temperature sensing impact device which are arranged at the pressure relief channel, has a simple structure, and achieves sensitive detection and safe activation.
The present invention provides a flameless condensed aerosol fire extinguishing agent and a preparation method therefor. The flameless condensed aerosol fire extinguishing agent comprises the following components in percentage by mass: 50-70% of an oxidizing agent, 5-30% of a reducing agent, 5-20% of an adhesive, and 0.5-5% of an additive, wherein the additive comprises one or more of phenolic resin, potassium oxalate, potassium hydrogen phthalate, and potassium tartrate. In the present invention, the adhesive added has the function of bonding components and also has the effects of cooling and stabilizing combustion. However, after the adhesive is added, aggregation is prone to occurring in the combustion process of the condensed aerosol fire extinguishing agent. By using one or more of phenolic resin, potassium oxalate, potassium hydrogen phthalate, and potassium tartrate as the additive and adding a small amount of the additive to the fire extinguishing agent, components of the adhesive are not prone to quick aggregation, so that the internal temperature distribution is more uniform during combustion of a chemical agent, thereby achieving a flameless combustion effect and also ensuring uniform release of a fire extinguishing medium.
Provided in the present invention are a chemical coolant and the use thereof in a K-type aerosol fire extinguishing agent. The chemical coolant comprises the following components in mass percentage: 20-70% of an organic acid, 20-70% of an inorganic acidic substance and 2-10% of a binding agent. In the present invention, a substance released after the organic acid-inorganic acidic substance coolant is used in combination with a K-type aerosol has an excellent electrical insulation property and exhibits very low corrosiveness to copper plates, and the pH of a sediment solution is close to neutral, thus solving the problem of reducing the temperature of aerosol nozzles, as well as the problems of the corrosiveness and electrical insulation of aerosol release products.
A rotary tank tightness testing device, comprising a tightness tester (1), The tightness tester (1) is connected to a pressing plate (11) by means of a connecting air pipe (2), an air inlet (8) of the connecting air pipe (2) being provided with an air inlet sealing gasket (10), and a nozzle boss sealing gasket (9) being further provided on the pressing plate (11). The pressing plate (11) is driven by a down-pressing push cylinder (6) to move, the pressing plate (11) being in running fit with a telescopic rod of the down-pressing push cylinder (6). One end of a guide rod (12) is connected to a tank fixture, the tank fixture comprising a bottom plate (13.1) connected to the guide rod (12); a rotating disc (13.4) is rotatably provided on the bottom plate (13.1), a ring gear (13.5) being provided on an outer edge of the rotating disc (13.4); the ring gear (13.5) is meshed with a first gear (5), the first gear (5) being driven by a rotating rod (15) and a rotation drive device to rotate. The rotating disc (13.4) is provided with a back support member (13.2) and a side limiting support member (13.3). The present invention can use two testing modes to simultaneously test the tightness of tanks, so as to greatly improve test reliability, and can implement tests on the basis of in-line multiple pressurization so as to meet requirements of various working conditions, thereby helping to improve test accuracy. The present invention further relates to a use method of the rotary tank tightness testing device.
G01M 3/10 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for containers, e.g. radiators
G01M 3/32 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
45.
LOW-TEMPERATURE-SENSING THERMOSENSITIVE LINE AND PREPARATION METHOD THEREFOR
The present invention provides a low-temperature-sensing thermosensitive line and a preparation method therefor. The low-temperature-sensing thermosensitive line comprises the following raw materials in percentage by weight: 45%-70% of a low-temperature-sensing oxidizer, 10%-30% of a reducing agent, 5%-15% of a binder, 1%-5% of a curing catalyst, and 1%-5% of a plasticizer, wherein the low-temperature-sensing oxidizer is one or more of nitromethane, nitroethane, cyclotrimethylenetrinitramine, 2,6-dinitrotoluene, and 2,4-dinitrotoluene. The low-temperature-sensing thermosensitive line provided by the present invention has high safety and a rapid sensing capability in an actual use process; and when being applied in an automatic firefighting device, the thermosensitive line can rapidly sense the abnormal condition of a protected space along with the abnormal temperature rise or fire catching of the protected space, thereby achieving the effects of rapidly starting a fire extinguishing device and extinguishing the fire.
Disclosed in the present invention are a pressure-relievable agent chamber structure in a dry powder fire extinguishing apparatus, and a pressure relief method therefor. The pressure-relievable agent chamber structure comprises an agent chamber provided in a dry powder fire extinguishing apparatus; a gas-producing agent is provided in the agent chamber; release holes are formed on the surface of the agent chamber, and the release holes are formed on the upper side of the surface of the agent chamber; notches are formed on the lower side of the surface of the agent chamber; pressure relief plates that can be pushed outwards are arranged in the notches. According to the present invention, when the internal gas-producing agent explodes or burns, the pressure relief plates will be opened to relieve the pressure in time, so that a sharp increase in the internal pressure of the agent chamber is avoided, and the whole fire extinguishing apparatus will not be damaged due to the explosion of the agent chamber, thereby greatly reducing the safety risk, and the pressure relief process will not affect the spraying efficiency, but improves the spraying efficiency.
A device for extinguishing fire through cooperation of aerosol and dry powder, and a fire extinguishing method. The device comprises a shell (1), a spraying part (2) is arranged at the front end of the shell (1), a piston (3) in sliding fit with the shell (1) is arranged in the shell (1), a dry powder extinguishing agent (4) is arranged between the piston (3) and the spraying part (2), an aerosol agent (5) is arranged between the piston (3) and the rear end of the shell (1), discharge channels (6) are further provided on the periphery of the shell (1) close to the spraying part (2), discharge grooves (7) are formed on the sides of the shell (1) close to inlets of the discharge channels (6), the bottom of each discharge groove (7) is hingedly connected to the bottom of a reversible back guide slot (8), and the periphery of each discharge groove (7) is covered by a seal coating layer (9).
Provided in the present invention are an ultrathin aerosol fire-extinguishing agent and a production process therefor. The ultrathin aerosol fire-extinguishing agent has a thickness of 5 mm +/- 0.5 mm, and comprises the following raw materials, in percentages by weight: 55-75% of an oxidant, 10-25% of a reducing agent, 10-15% of an adhesive and 5-8% of a regulator, wherein the regulator is one or more of illite, chlorite, zeolite and albite. A certain amount of the regulator is added to the raw materials of the aerosol fire-extinguishing agent of the present invention, such that the problems of poor strength, and being easily fragmented and difficult to demold after an existing flaky medicament is directly pressed are solved; and by adding a small amount of the regulator, the strength and toughness of the pressed medicament are greatly improved, the phenomenon that an ultrathin medicament is fragmented during the transportation, production, storage and use process is prevented, and no negative influence is caused on the spraying performance of the medicament. The flow of the production process of the present invention is simplified, such that the productivity and efficiency are improved, and the cost is reduced.
Disclosed are a chemical coolant for an aerosol fire extinguishing agent and a preparation method. The chemical coolant is prepared by means of selecting an inorganic salt of K/Na/Mg/Ca/Sr that can undergo a decomposition reaction and combining same with an organic flame retardant and a binder. By using a metal inorganic salt, a decomposition reaction occurs at a high temperature to generate active metal substances such as K/Na/Mg/Ca/Sr oxide, and the fire extinguishing capacity is enhanced while combustion heat is absorbed. The organic flame retardant also undergoes a vaporization or decomposition reaction at a high temperature to generate a non-combustible gas such as NH3, N2, CO2, and water vapor, the aerosol content is increased while flame extinction and cooling are achieved, and the fire extinguishing capacity is enhanced. Furthermore, the organic flame retardant also has certain binding characteristics. An auxiliary binder is used for binding the chemical coolant to increase the stability, thereby preventing the metal inorganic salt in the chemical coolant from experiencing pulverization during storage, transportation, and use.
A chemicals column coating agent for an aerosol fire extinguishant, and a coating method. The chemicals column coating agent is prepared by mixing high-temperature-resistant silicone oil, an inorganic flame retardant, and a platinum-containing catalyst. The surface of a chemicals column of the aerosol fire extinguishant is tightly coated with the chemicals column coating agent, so that the shock resistance of the chemicals column is enhanced, and the damage rate caused by storage and transportation is reduced. Moreover, the chemicals column coating agent can also block combustion heat, reduce the risks of flame spurting and deflagration of the chemicals column, reduce the heat insulation requirement for a fire extinguishing apparatus, and improve the safety of operators. Additionally, the ordered combustion of the chemicals column can be guaranteed, fire extinguishing aerosol is continuously generated for fire extinguishing, explosion accidents caused by pressure as a result of the fire extinguishing apparatus failing to resist a large amount of gas generated by deflagration are avoided, and the fire extinguishing safety is improved.
Disclosed in the present invention are a tool for coating an aerosol generating agent with silica gel, and a coating method of the tool. The tool comprises a coating compartment having an open top; a first positioning plate, a second positioning plate, and a third positioning plate are hingedly connected to the top of the coating compartment; first positioning holes matching outer sides of outer-layer molds are formed in the surface of the first positioning plate; second positioning holes matching outer sides of chemicals columns are formed in the surface of the second positioning plate; third positioning holes matching outer sides of reinforcing meshes are formed in the surface of the third positioning plate; positioning recesses are formed on the bottom of the coating compartment; the positioning recesses match the bottoms of positioning molds; and the tops of the positioning molds match the bottoms of the outer-layer molds. The present invention solves the technical problem that chemicals columns of an aerosol generating agent are prone to generation of bubbles and voids in a coating process of silica gel; and the whole coating tool has a simple structure, is convenient to use, and greatly improves coating efficiency.
B29C 39/10 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
A62C 5/033 - Making of fire-extinguishing materials immediately before use of gel
A62C 5/00 - Making of fire-extinguishing materials immediately before use
52.
AEROSOL FIRE-EXTINGUISHING APPARATUS WITH PRESSURE RELIEF AND BLOCKING PREVENTION FUNCTIONS AND FIRE-EXTINGUISHING METHOD THEREFOR
Disclosed in the present invention are an aerosol fire-extinguishing apparatus with pressure relief and blocking prevention functions and a fire-extinguishing method therefor. The aerosol fire-extinguishing apparatus comprises a shell, and a fire-extinguishing agent powder column arranged in the shell, wherein one end of the fire-extinguishing agent powder column is connected to a tail end of a starting component, a front cover is provided at a front end of the shell, a nozzle is formed in the surface of the front cover, a movable cambered separation net is provided at the top of the fire-extinguishing agent powder column, the bottom of the front cover is connected to the top of a movable filter screen by means of a compression spring, the bottom of the movable filter screen is in contact with the top of a hollow partition plate with a narrow top and a wide bottom, the interior of the hollow partition plate is hollow and the top and the bottom of the hollow partition plate are open, and a coolant is arranged in a space area enclosed by the movable filter screen, the hollow partition plate and the movable cambered separation net. The present invention can achieve excellent pressure relief and blocking prevention effects.
A62C 5/02 - Making of fire-extinguishing materials immediately before use of foam
A62C 5/00 - Making of fire-extinguishing materials immediately before use
A62C 5/033 - Making of fire-extinguishing materials immediately before use of gel
A62C 13/22 - Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals with incendiary substances producing pressure gas
A62C 31/02 - Nozzles specially adapted for fire-extinguishing
A62C 37/38 - Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
53.
MOISTURE-PROOF S-TYPE HOT AEROSOL FIRE EXTINGUISHING AGENT AND PREPARATION METHOD THEREFOR
Disclosed in the present invention are a moisture-proof S-type hot aerosol fire extinguishing agent and a preparation method therefor. By utilizing the dissolution properties of raw materials and using an "eutectic-coating" process, the method dissolves an oxidizing agent and a coating agent in water, then forms an eutectic oxidizing agent having a coating layer by using an anti-solvent method, coats the oxidizing agent in a targeted mode, then disperses a reducing agent into the oxidizing agent, and finally adds an adhesive therein for granulation and surface coating. A dual action of eutectic and coating forms the coating layer on the oxidizing agent, which hinders moisture absorption processes of the oxidizing agent and a hot aerosol fire extinguishing agent, and prepares the moisture-proof S-type hot aerosol fire extinguishing agent, thus reducing the storage requirements for hot aerosol fire extinguishing agents, prolonging the service life and expanding the use range.
Provided in the present invention are a composite coolant and the use thereof in aerosol fire extinguishment. The coolant is prepared by loading a chemical coolant onto a molecular sieve by means of a co-impregnation method, wherein the chemical coolant is adsorbed into pores of the molecular sieve to present uniform distribution, so as to obtain said novel coolant. When said coolant is used for flame suppression and cooling of aerosol fire extinguishment devices, the chemical coolant is decomposed to form free radicals which have strong binding capacity on OH· and H· free radicals generated by combustion in fire scenes. In addition, the molecular sieve has good thermal stability and therefore can hold a stable structure even under the effect of a high temperature during aerosol ejection, so that effective absorption of aerosol ejection flames can be achieved, thereby achieving excellent cooling and flame suppression effects and further improving the fire extinguishment capacity of devices.
An easily-demolded high-insulation low-corrosion condensed aerosol fire extinguishing agent and a preparation method therefor. Strontium nitrate and potassium nitrate are jointly used as an oxidizing agent, and molybdenum disulfide, niobium diselenide, etc. are used as additives, for mixing, bonding, granulation, and compression with other raw materials so as to obtain a condensed aerosol fire extinguishing agent; and a sprayed substance of the condensed aerosol fire extinguishing agent has the advantages of high insulation and low corrosion. The additives added in the condensed aerosol fire extinguishing agent can cause relative slippage during grain demolding to form a hydrophobic slippage plane, so that a lubricating effect is achieved, the agent is prevented from absorbing moisture in air, and the problems that the condensed aerosol fire extinguishing agent containing strontium nitrate is prone to moisture absorption and failure, and is difficult to demold in compression molding are solved; and the storage requirements of the condensed aerosol fire extinguishing agent are reduced, and the compression process is simplified.
A62D 1/06 - Fire-extinguishing compositionsUse of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components
A62D 1/00 - Fire-extinguishing compositionsUse of chemical substances in extinguishing fires
56.
HIGH-INSULATION AND LOW-CORROSION VAPORIZATION PROPELLANT FOR NON-PRESSURE-STORAGE PERFLUOROHEXANONE FIRE-EXTINGUISHING APPARATUS AND PREPARATION METHOD
The present invention provides a high-insulation and low-corrosion vaporization propellant for a non-pressure-storage perfluorohexanone fire-extinguishing apparatus and a preparation method. A non-metal salt and a metal salt having high stability of residues after combustion are used as oxidizing agents, and are mixed with a reducing agent and a binder to prepare the vaporization propellant. Gas generated by combustion causes a hole or breakage to a chemical agent chamber, so that perfluorohexanone is promoted to be sprayed out to achieve fire extinguishing. In addition, a solid residue generated after combustion of the non-metal salt oxidizing agent in the vaporization propellant is free of conductive ions and is insoluble in water or neutral after being dissolved. A solid residue generated after combustion of the metal salt oxidizing agent is a stable metal salt and is practically insoluble in or hardly reacts with water. Therefore, the vaporization propellant has the advantages of high insulation and low corrosion after combustion, and the application range of the non-pressure-storage perfluorohexanone fire-extinguishing apparatus is expanded. In addition, the diameter of a raw material is controlled to be about 100 meshes during preparation, so that the sensitivity of the vaporization propellant to external energy is reduced, and the safety is improved.
Disclosed in the present invention are a chemical coolant for an aerosol fire-extinguishing agent and a preparation method therefor. Under the principle of a neutralization reaction, a chemical coolant suitable for a K-type aerosol fire-extinguishing agent is prepared by mixing an organic acid, and a carbonate or a basic carbonate with a binder and a release agent, and a coolant suitable for an S-type aerosol fire-extinguishing agent is prepared by mixing an organic acid, a carbonate or a basic carbonate, an alkaline organic substance, a binder and a release agent. The coolant can effectively neutralize strongly alkaline substances generated during fire extinguishing via different types of aerosol fire-extinguishing agents and enable same to generate sylvites having neutral pH and weak hygroscopicity, such that the corrosivity of the aerosol fire-extinguishing agents is effectively reduced; and low-hygroscopicity sylvites cannot be ionized, thereby showing a very strong electrical insulating property. In the present invention, by using the coolant on the premise that raw material components and the fire extinguishing performance of an aerosol fire-extinguishing agent are unchanged, not only is the temperature of a nozzle of a fire-extinguishing device effectively reduced, but the effects of high insulation and low corrosion of sediments are also achieved, and the application range is widened.
An indirect starting mechanism for a fire extinguishing device, and a starting method therefor. The indirect starting mechanism for a fire extinguishing device comprises an indirect starting mechanism body (7) working in conjunction with a primary gas generating agent (6). The indirect starting mechanism body (7) comprises a starting shell (7.1); a second piston (7.2) in sliding fit with the starting shell (7.1) is arranged in the starting shell (7.1); and a secondary gas generating agent (7.3) is provided between the second piston (7.2) and the starting shell (7.1).
Disclosed are an indirectly-started fire extinguishing apparatus and a fire extinguishing method. The indirectly-started fire extinguishing apparatus comprises a cylinder. A spraying portion is provided at a front end of the cylinder, and the cylinder is provided therein with a first piston that slidably engages therewith. A fire extinguishing agent is provided between the first piston and the spraying portion. A main gas generating agent and an indirect starting mechanism engaging therewith are provided between the first piston and a rear end of the cylinder. The indirect starting mechanism comprises a starting housing, and the starting housing is provided therein with a second piston that slidably engages therewith. A secondary gas generating agent is provided between the second piston and the starting housing. The present invention provides the indirect starting mechanism, so that the fire extinguishing apparatus does not cause the spraying pressure of the fire extinguishing agent to decrease due to gas leakage during spraying, thereby greatly improving the energy efficiency of the fire extinguishing apparatus.
A safe perfluoro(2-methyl-3-pentanone) fire extinguishing device and a fire extinguishing method. The device comprises a shell (1), wherein a spraying part (3) is provided at the front end of the shell; a piston (4) in slide fit with the shell is provided in the shell; a perfluoro(2-methyl-3-pentanone) fire extinguishing agent (5) is provided between the piston and the spraying part; a gas generating agent (6) is provided between the piston and a rear end of the shell; pressure relief plugs (4.1) matched with spraying pipes (3.1) of the spraying part are arranged on the surface of the piston. By providing the pressure relief plugs and the matching spraying pipes, gas generated by the gas generating agent can be discharged after the fire extinguishing device completes spraying, thereby ensuring the safety of the fire extinguishing device.
A62C 31/00 - Delivery of fire-extinguishing material
A62C 31/28 - Accessories for delivery devices, e.g. supports
A62C 37/40 - Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
A62C 37/11 - Releasing means, e.g. electrically released heat-sensitive
61.
EASY-FILL STORED PRESSURE PERFLUOROHEXANONE FIRE EXTINGUISHING APPARATUS AND FILLING METHOD THEREFOR
Disclosed in the present invention are an easy-fill stored pressure perfluorohexanone fire extinguishing apparatus and a filling method therefor. The stored pressure perfluorohexanone fire extinguishing apparatus comprises a storage compartment; an output end of the storage compartment is connected to an input end of a communication portion by means of a siphon; one output end of the communication portion is connected to an input end of a spraying portion, and another output end of the communication portion is matched with a movable valve; an inflation channel is formed in the inner side of the movable valve; and a filling valve is provided at one side of the storage compartment. According to the present invention, the connection and disconnection of the communication portion can be controlled when the movable valve is moved, so that before a nitrogen pipe needs to be removed after filling is completed, the movable valve can firstly be moved to cut off the output end of the communication portion, and thus, when the nitrogen pipe is pulled out, gas and agent filled inside will not leak out from the removal position of the nitrogen pipe.
B65B 31/04 - Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
62.
STORED PRESSURE PERFLUOROHEXANONE FIRE EXTINGUISHING DEVICE AND FIRE EXTINGUISHING METHOD THEREOF
A stored pressure perfluorohexanone fire extinguishing device and a fire extinguishing method thereof. The stored pressure perfluorohexanone fire extinguishing device comprises a pipe network type storage chamber (2), an output end of the pipe network type storage chamber (2) being connected to an input end of a docking part (4) via a siphon (3), and an output end of the docking part (4) being connected to an input end of a spraying part (5); the pipe network type storage chamber (2) is a pipe network type structure, and thus can be configured in an ultrathin design, aiding in the process of spraying out a perfluorohexanone fire extinguishing agent. Specifically, by means of the dispersion effect of a peripheral pipe (2.1) and a plurality of distribution pipes (2.2) of the pipe network type storage chamber (2), the whole pipe network type storage chamber (2) can be configured in an ultrathin design, such that the siphon (3) extending into the pipe network type storage chamber (2) will be relatively short, and the perfluorohexanone fire extinguishing agent can be easily sprayed out of the siphon (3), thereby allowing for less strict requirements for the material of the fire extinguishing device and more thorough spraying processes, and effectively reducing the residual ratio of the perfluorohexanone fire extinguishing agent in the pipe network type storage chamber (2).
An environment-friendly multi-core moisture-proof thermosensitive wire and a manufacturing method therefor. The thermosensitive wire consists of a thermally-conductive core, a burning powder (4) and a moisture-proof layer (5). The thermally-conductive core is formed by winding one or more materials, and is externally covered with the uniform burning powder prepared from an oxidizing agent, a heat stabilizer, a whistling powder, a reducing agent and a thermosensitive agent, and after drying, same is covered with the moisture-proof layer by means of an extrusion process. Thus, the thermosensitive wire is provided with various combustion speed choices and has an excellent moisture-proof property. Introducing the whistling powder into the thermosensitive wire can achieve a warning effect before fire extinguishing. In addition, using only a metal oxide as the heat stabilizer ensures the combustion stability of the thermosensitive wire and also prevents the burning powder from cracking when the thermosensitive wire is located in dry environments for long term, thereby prolonging the service life and expanding the application range.
C06B 33/14 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being two or more oxygen-yielding compounds at least one being an inorganic nitrogen-oxygen salt
C06B 33/12 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being two or more oxygen-yielding compounds
Disclosed in the present invention are a combined condensed aerosol fire extinguishing agent and a preparation method. The preparation method comprises: respectively preparing a rapid agent and a slow agent from an oxidizing agent, a reducing agent, an adhesive and a burning rate regulator according to certain ratios, then respectively pressing, sequentially placing the rapid agent and the slow agent in an agent pressing mold, dropwise adding absolute ethyl alcohol to a contact surface of two agents, and pressing while heating, so as to obtain the combined condensed aerosol fire extinguishing agent. Therefore, the combined condensed aerosol fire extinguishing agent has the advantages of low fire extinguishing concentration and high fire extinguishing speed, thereby reducing the usage amount of the fire extinguishing agent, reducing use costs, and also reducing the impact of a product after fire extinguishing on people and the ecological environment.
A62D 1/06 - Fire-extinguishing compositionsUse of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components
A62D 1/00 - Fire-extinguishing compositionsUse of chemical substances in extinguishing fires
A62D 1/02 - Fire-extinguishing compositionsUse of chemical substances in extinguishing fires containing or yielding a gas phase, e.g. foams
A62D 1/04 - Fire-extinguishing compositionsUse of chemical substances in extinguishing fires containing or yielding a gas phase, e.g. foams characterised by the foam stabiliser
A62D 1/08 - Fire-extinguishing compositionsUse of chemical substances in extinguishing fires containing volatile or gas-charged liquids
65.
FIRE EXTINGUISHING DEVICE HAVING PRESSURE RELIEF AND SEALING FUNCTIONS AND FIRE EXTINGUISHING METHOD THEREOF
A fire extinguishing device having pressure relief and sealing functions and a fire extinguishing method thereof. The fire extinguishing device comprises a housing (1), the front side of the housing is connected to an outer cover (2), a fire extinguishing agent (3) is provided in the housing, and the fire extinguishing agent is connected to the tail end of an activating component (4). Multiple L-type nozzles (5) are formed in the side portion of the outer cover, an inner cover (6) is provided in the outer cover, multiple spraying holes (7) matching the L-type nozzles are formed in the side portion of the inner cover, and a cover screwing mechanism (8) for rotating the inner cover is provided between the inner side of the outer cover and the outer side of the inner cover. Good sealing performance can be maintained before fire extinguishing, the spraying is not affected after activation, and pressure relief can be performed in a timely manner.
The present invention relates to a self-cooling flameless condensed aerosol fire-extinguishing agent and a preparation method therefor. The fire-extinguishing agent comprises, in percentages by mass: 90-98% of a gas-producing component, 1-5% of a cooling component and 1-5% of a heat-conducting additive, wherein the gas-producing component comprises an oxidizing agent, a reducing agent and an adhesive; the cooling component comprises a potassium salt and nitrogen-containing organic matter; and the heat-conducting additive is a heat-conducting metal. Combustion of the condensed aerosol fire-extinguishing agent may produce combustible gases and form surface flames. As such, in the present invention, the addition of the cooling component can effectively reduce the concentration of the combustible gases and oxygen on the surface of the agent, and inhibit a combustion chain reaction of the combustible gases on the surface of the agent, such that the aerosol fire-extinguishing agent can undergo self-cooling to achieve a flameless effect; and the addition of the heat-conducting additive can avoid the problem of the agent being difficult to ignite or being subjected to flameout due to the addition of the cooling component.
An aerosol fire extinguishing device provided with a gas flow dividing disc and a fire extinguishing method thereof. The aerosol fire extinguishing device comprises an outer cylinder (1) and a fire extinguishing agent column (2) provided inside the outer cylinder; one end of the fire extinguishing agent column is connected to the tail end of a starting component (3); a front cover (4) is provided on the front side of the outer cylinder; nozzle openings (5) are formed in the surface of the front cover; a rotatable gas flow dividing disc (6) is provided on the front sides of the nozzle openings. The flow velocity and the temperature of the nozzle openings of the aerosol fire extinguishing device can be effectively reduced, and flames can be prevented from being sprayed outwards.
Disclosed in the present invention are a fire extinguishing aerosol device with a diffusion fan, and a fire extinguishing method therefor. The device comprises an outer cylinder and a fire extinguishing agent column arranged therein, wherein one end of the fire extinguishing agent column is connected to the tail end of a starting component, a front cover is arranged on the front side of the outer cylinder, a nozzle is formed in the surface of the front cover, and a rotatable diffusion fan is arranged on the front side of the nozzle. The present invention can effectively reduce the nozzle temperature when using the fire extinguishing aerosol device to extinguish a fire, and can improve the diffusion capacity of fire extinguishing substances.
A device for inhibiting thermal runaway of a ternary battery and a graded inhibition method. The device comprises: a battery compartment (1), one side of the battery compartment (1) being sequentially provided with a gas compartment (2) used for thermal insulation and a liquid fire extinguishing agent compartment (3) used for fire extinguishing and cooling. By means of the gas compartment (2) being provided between the battery compartment (1) and the liquid fire extinguishing agent compartment (3), the gas compartment (2) can achieve two effects: one effect is a thermal insulation effect, which effectively reduces the occurrence of temperature increase caused by the conduction of heat from the battery compartment (1) to the liquid fire extinguishing agent compartment (3) and prevents a sudden pressure increase in the liquid fire extinguishing agent compartment (3); and the other effect is that when combustible gas is released in the battery compartment (1), and after a first solenoid valve (4) is opened, the gas in the gas compartment (2) flows into the battery compartment (1) via the first solenoid valve (4), is dispersed in the whole battery compartment (1), and replaces the internal combustible gas, thus rapidly diluting and reducing the concentration of combustible gas in the battery compartment (1).
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 31/02 - Nozzles specially adapted for fire-extinguishing
A fire extinguishing device (100), comprising: a fire extinguishing container (10) having a containing cavity (11) and nozzles (12) enabling the containing cavity (11) to be communicated with the outside; and a first fire extinguishing agent (21) and a second fire extinguishing agent (22) which are contained in the containing cavity (11) and controlled to generate a first fire extinguishing medium and a second fire extinguishing medium, respectively, the first fire extinguishing medium and the second fire extinguishing medium being sprayed out from the nozzles (12) to the outside air; wherein the density of the first fire extinguishing medium is smaller than that of air, and the density of the second fire extinguishing medium is larger than or equal to that of air. After the fire extinguishing device is started in an overlarge or tall, narrow protection space, the first fire extinguishing medium can move towards an upper area of the protection space and extinguish fire in the upper area, and the second fire extinguishing medium can diffuse in a lower area of the protection space and extinguish fire in the lower area. The first fire extinguishing medium and the second fire extinguishing medium respectively diffuse in the upper area and the lower area of the protection space, such that fire in the overlarge or tall, narrow protection space can be completely extinguished.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Signalling whistles; rescue flares, non-explosive and
non-pyrotechnic; fire extinguishers; fire beaters; fire
extinguishing apparatus; life-saving apparatus and
equipment. Upholstery for vehicles; windows for vehicles; anti-theft
devices for vehicles; anti-theft alarms for vehicles; brake
shoes for vehicles; covers for vehicle steering wheels;
vehicle joysticks; cup holders for vehicles; spoilers for
vehicles; security harness for vehicle seats.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Signalling whistles; rescue flares, non-explosive and non-pyrotechnic; fire extinguishers; fire extinguishing apparatus for automobiles; fire extinguishing apparatus; fire detectors Upholstery for vehicles; anti-theft devices for vehicles; anti-theft alarms for vehicles; brake shoes for vehicles; covers for vehicle steering wheels; cup holders for vehicles; spoilers for vehicles
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
(1) Signalling whistles; rescue flares, non-explosive and non-pyrotechnic; fire extinguishers; fire extinguishing apparatus for automobiles; fire beaters; fire detectors.
(2) Upholstery for vehicles; windows for vehicles; anti-theft alarms for vehicles; brake shoes for vehicles; covers for vehicle steering wheels; vehicle joysticks; cup holders for vehicles; spoilers for vehicles; security harness for vehicle seats.
74.
EXPLOSION-VENTING METHOD FOR AEROSOL FIRE SUPPRESSION APPARATUS
An explosion-venting method for an aerosol fire suppression apparatus, comprising the following steps: 1) when the aerosol fire suppression apparatus explodes, an explosion-venting device matching the aerosol fire suppression apparatus generating a limited displacement along a direction that a hot air stream of the aerosol fire suppression apparatus is jetting towards; 2) when an extremity of the explosion-venting device reaches an edge of the aerosol fire suppression apparatus, being limited, the explosion-venting apparatus stops the displacement along the direction that the hot air stream of the aerosol fire suppression apparatus is jetting towards, thus achieving for the aerosol fire suppression apparatus the effects of explosion-venting and reduced recoil force. The explosion-venting method, within a limited displacement of the explosion-venting device, completely consumes powerful kinetic energy of a relative motion between a cylinder body and a cylinder cover assembly generated by the explosion, thus allowing smooth ventilation of the powerful explosion, thereby preventing a powerful recoil force generated thereby from injuring an operator, while at the same time preventing the cylinder cover a from flying outwards at a great speed and causing accidents resulting in injuries and damages.
A62C 13/22 - Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals with incendiary substances producing pressure gas
A62C 19/00 - Hand fire-extinguishers in which the extinguishing substance is expelled by an explosionExploding containers thrown into the fire
A62C 35/02 - Permanently-installed equipment with containers for delivering the extinguishing substance
A62C 35/68 - Details, e.g. of pipes or valve systems
The present invention relates to an inner canister of an explosion-venting-type aerosol fire suppression apparatus, comprising a canister body (3) and a canister cover component (4) arranged on one end of the canister body (3), also an explosion-venting apparatus arranged on the canister body (3). The explosion-venting apparatus comprises a friction layer (11), a connecting rod (12), a guiding unit (13), and a limiting apparatus (14). The connecting rod (12) and the canister cover component (4) are connected. The friction layer (11) is arranged between the connecting rod (12) and the canister body (3). The friction layer (11) provides a frictional resistance and buffering force for the connecting rod (12) when same is displaced, under the guidance of the guiding unit (13), along a direction that a hot air stream of the canister body (3) is jetting towards. The guiding unit (13) is an apparatus capable of providing guidance for the connecting rod (12) when same is moving. The limiting apparatus (14), the canister cover component (4), and the connecting rod (12) are fixedly connected. The limiting apparatus (14) limits the connecting rod (12) when an extremity thereof slides to the canister cover component (4). The present invention uses primarily the movement and limiting of the explosion-venting apparatus to consume kinetic energy generated by deflagration, thus achieving the goal of safe and effective explosion ventilation, and preventing a grain (7) from causing injuries and damages when deflagrated.
A62C 5/00 - Making of fire-extinguishing materials immediately before use
A62C 13/22 - Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals with incendiary substances producing pressure gas
The present invention relates to a fire extinguishing composition which generate fire extinguishing substance by high temperature sublimation; the fire extinguishing composition comprising a fire extinguishing material which, in a heating process, can sublimate and release a fire extinguishing substance with fire extinguishing properties; the content of the fire extinguishing material is at least 80wt%. When the fire extinguishing composition is in use, a pyrotechnic agent as a heat source and a power source; and the purpose of fire extinguishing is achieved by: igniting the pyrotechnic agent, generating a large quantity of fire substance from the fire extinguishing composition in the use of high temperature produced by burning pyrotechnic agent, and the fire substance sprays out together with the pyrotechnic agent. When compared with traditional aerosol fire extinguishing systems, gas fire extinguishing systems and water type extinguishing systems, the present invention can provide a more efficient and safer fire extinguishing composition.
The present invention relates to a ferrocene-based fire extinguishing composition. The ferrocene-based fire extinguishing composition comprises ferrocene, a ferrocene derivative, or a combination thereof at a content of 25 mass% or more; when in use, a pyrotechnic agent is used as a heat source and a power source, the pyrotechnic agent is ignited, and the high temperature generated by the combustion of the pyrotechnic agent is utilized to make a fire extinguishing composition produce a large amount of fire extinguishing substance, which is sprayed out together with the pyrotechnic agent, so as to achieve the purpose of extinguishing a fire. Compared with a conventional fire extinguishing composition, a more efficient and safer fire extinguishing composition is provided.
The present invention relates to a fire extinguishing composition generating fire extinguishing substance through high-temperature decomposition; the fire extinguishing composition includes a fire extinguishing material which can be decomposed to release substance with fire extinguishing properties during the heating process; the content of the fire extinguishing material is at least 80wt%; a pyrotechnic agent is adopted as a heat source and a power source in a process of fire extinguishing; and the purpose of fire extinguishing is achieved by: igniting the pyrotechnic agent, generating a large quantity of fire substance from the fire extinguishing composition in the use of high temperature produced by burning pyrotechnic agent, and the fire substance sprays out together with the pyrotechnic agent. Compared with the traditional aerosol fire extinguishing systems, the gas fire extinguishing systems and the water type extinguishing systems, the present invention provides a more efficient and safer fire extinguishing composition.
A fire extinguishing composition generating fire extinguishing substance through chemical reaction of ingredients at high temperature, wherein: the fire extinguishing composition comprises a flame retardant, an oxidant, a reducing agent and an adhesive; contents of each ingredient are: the flame retardant: 50wt% to 90wt%; the oxidant: 5wt% to 30wt%; the reducing agent: 5wt% to 10wt%; the adhesive:0% to 10wt%. In a usage of the fire extinguishing composition, a pyrotechnic agent is adopted as a heat source and a power source; and the purpose of fire extinguishing is achieved by: igniting the pyrotechnic agent, and the oxidant and the reducing agent in the fire extinguishing composition are reacted to generate the in the use of high temperature produced by burning the pyrotechnic agent. by burning the pyrotechnic agent, so as to implement fire extinguishing. Different from the traditional aerosol generating agent, there is no external heat source, and the composition itself does not burn. Compared with the traditional aerosol generating agent, the fire extinguishing composition of the present invention is more efficient and safer.
A new method for extinguishing fire is provided, characterized in that a pyrotechnic agent is used as a heat source (energy) and a power source (driving gas); during use, the pyrotechnic agent is ignited, and the high temperature generated by the combustion of the pyrotechnic agent is utilized to make a fire extinguishing composition produce a large amount of fire extinguishing substance, which is sprayed out together with the pyrotechnic agent, so as to achieve the purpose of extinguishing a fire. As compared with conventional aerosol fire extinguishing systems, gas fire extinguishing systems and water-based fire extinguishing systems, the fire extinguishing method of the present invention is more efficient and safer.
