Power-efficient, compact fog machine. The heat exchanger has an internal geometry consisting of a stepped pin inserted in a correspondingly stepped external jacket. The diameter of the pin (and correspondingly the internal diameter of the jacket) is larger near the inlet and thinner near the outlet. Alternatively, the diameter of the pin (and correspondingly the internal diameter of the jacket) is smaller near the inlet and larger near the outlet. Overcomes technical limitations due to tradeoff between size of metal heat exchanger and number of holes necessary for fog generation.
G08B 15/02 - Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives with smoke, gas, or coloured or odorous powder or liquid
F41H 9/06 - Apparatus for generating artificial fog or smoke screens
2.
BATTERY-OPERATED FOG GENERATOR WITH INSTANTANEOUS HEATING
A battery-operated fog generator with instantaneous heating is described, comprising a support and containment structure (1) containing: at least one power supply battery (3); at least one container (5) of fog fluid; at least one pump (11) designed to pump the fog fluid out of the container (5); at least one electronic board (9) for controlling, feeding and heating the generator components; and at least one hermetic or non-hermetic thermal insulation device (7) designed to contain and isolate at least one heat exchanger (12) inside which the fog fluid passes before its firing outside the generator.
A safety system for a battery-powered fog generator is described, designed to operate on a vaporization coil (2) of a fogging fluid; the safety system includes: a fuse wire (1), each placed at one end of the coil (2), suitable for heating both due to a Joule effect and through heat coming from the coil (2) by thermal conduction, the fusible wire (1) being therefore designed to melt when its temperature exceeds a melting threshold value, interrupting the power supply from the battery to the coil (2); a sensor (6) designed to detect the temperature of the coil (2) when current flows in it; and a control unit (7) operatively connected to the sensor (6).
H01H 85/06 - Fusible members characterised by the fusible material
G01K 7/22 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements the element being a non-linear resistance, e.g. thermistor
H10N 10/17 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
4.
BATTERY-OPERATED FOG GENERATOR WITH INSTANTANEOUS HEATING
A battery-operated fog generator with instantaneous heating is described, comprising a support and containment structure (1) containing: at least one power supply battery (3); at least one container (5) of fog fluid; at least one pump (11) designed to pump the fog fluid out of the container (5); at least one electronic board (9) for controlling, feeding and heating the generator components; and at least one hermetic or non-hermetic thermal insulation device (7) designed to contain and 15 isolate at least one heat exchanger (12) inside which the fog fluid passes before its firing outside the generator.
A fog-generating system (1) is described, comprising: a tank (5) containing fog-generating fluid; a pump (3) connected to the tank (5) to withdraw the fog-generating fluid therefrom; a serpentine (2) connected to the pump (3) to receive the fog-generating fluid pumped by the pump (3), the serpentine (2) being divided into a first section (A) connected to the pump (3) and a second section (B) connected to the first section (A) and designed to emit dry fog (7) as output; a battery (6) connected to the serpentine (2) to pass electric current inside the serpentine (2) and to supply the pump (3); a differential amplifier (11) connected to the second section (B); and a threshold comparator (13) which, upon exceeding a certain voltage, a stop index of the serpentine (2) in the second section (B), breaks the supply to the pump (3).
B05B 9/00 - Spraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour
B05B 9/04 - Spraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible containerSpraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pump
B05B 12/08 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
A63J 5/02 - Arrangements for making stage effectsAuxiliary stage appliances
F41H 9/06 - Apparatus for generating artificial fog or smoke screens
G08B 15/02 - Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives with smoke, gas, or coloured or odorous powder or liquid
6.
SAFETY SYSTEMS FOR BATTERY-SUPPLIED FOGGING DEVICE
A safety system for a battery-powered fog generator is described, designed to operate on a vaporization coil (2) of a fogging fluid; the safety system includes: a fuse wire (1), each placed at one end of the coil (2), suitable for heating both due to a Joule effect and through heat coming from the coil (2) by thermal conduction, the fusible wire (1) being therefore designed to melt when its temperature exceeds a melting threshold value, interrupting the power supply from the battery to the coil (2); a sensor (6) designed to detect the temperature of the coil (2) when current flows in it; and a control unit (7) operatively connected to the sensor (6).
A fog-generating system (1) is described, comprising: a tank (5) containing fog-generating fluid; a pump (3) connected to the tank (5) to withdraw the fog-generating fluid therefrom; a serpentine (2) connected to the pump (3) to receive the fog-generating fluid pumped by the pump (3), the serpentine (2) being divided into a first section (A) connected to the pump (3) and a second section (B) connected to the first section (A) and designed to emit dry fog (7) as output; a battery (6) connected to the serpentine (2) to pass electric current inside the serpentine (2) and to supply the pump (3); a differential amplifier (11) connected to the second section (B); and a threshold comparator (13) which, upon exceeding a certain voltage, a stop index of the serpentine (2) in the second section (B), breaks the supply to the pump (3).
F41H 9/06 - Apparatus for generating artificial fog or smoke screens
A63J 5/02 - Arrangements for making stage effectsAuxiliary stage appliances
G08B 15/02 - Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives with smoke, gas, or coloured or odorous powder or liquid
A fog-generating device (1) is described, comprising a heat accumulator to store thermal energy and release it to a fog-generating fluid, to produce steam, and a thermal mass composed of a plurality of small metal plates (11, 12, 13, 14, 15, 16, 17, 18, 19, 20) housed, inside a container (2), in order to locate a path of the fog-generating fluid adapted to lick the surface of the small metal plates (11, 12, 13, 14, 15, 16, 17, 18, 19, 20), generating a vaporization of the fog-generating fluid.
F41H 9/08 - Smoke-pots without propulsive charge, i.e. stationary
G08B 15/02 - Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives with smoke, gas, or coloured or odorous powder or liquid
An improved fog-generating device (1) is described comprising: a storage means (3) of a fog-generating fluid; a heat exchanger (5) configured for quickly releasing thermal energy to said fog-generating fluid to produce steam (V) to diffuse in the external environment through one or more delivering means (7); and pumping means (10) of the fog- generating fluid from the storage means (3) to the heat exchanger (5), the pumping means comprising a mechanical volumetric pump (20a; 20b) with continuous flow configured for receiving as input a flow of fog-generating fluid (FN) coming from the storage means (3) and emitting a flow of the pressurized fog-generating fluid (FN') towards the heat exchanger (5).
A fog-generating device (1) is described, comprising a heat accumulator to store thermal energy and release it to a fog-generating fluid, to produce steam, and a thermal mass composed of a plurality of small metal plates (11, 12, 13, 14, 15, 16, 17, 18, 19, 20) housed, inside a container (2), in order to locate a path of the fog-generating fluid adapted to lick the surface of the small metal plates (11, 12, 13, 14, 15, 16, 17, 18, 19, 20), generating a vaporization of the fog-generating fluid.
G08B 15/02 - Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives with smoke, gas, or coloured or odorous powder or liquid
F41H 9/06 - Apparatus for generating artificial fog or smoke screens
13.
DEVICE FOR GENERATING FOG AND OPERATING METHOD OF SUCH DEVICE
A device for generating fog (1) is described, comprising at least one heat exchanger (10) electrically heated to be able to vaporize at least one pressurized fluid, pressurizing means (20) to be able to send the fluid from at least one tank (30) towards the heat exchanger (10), at least one electronic unit (40) to control the temperature of the heat exchanger (10) and the operation of the pressurizing means (20), wherein the heat exchanger (10) comprises tubular elements in contact with the pressurized fluid, each tubular element being subjected to an electric potential difference to thermally control the pressurized fluid before and during the vaporizing step of the pressurized fluid. An operating method to allow optimizing heating times and maximizing thermal power transferred to a fluid of a device for generating fog (1) is also described.
A control system is described, against a partial or total occlusion (1) for a fog-generating device comprising at least one thermal energy exchanger (5), possibly adapted to accumulate energy in thermal form, such thermal energy exchanger (5) being adapted to generate a phase passage of at least one fog-generating fluid in a fog-generating gas. A control process against an occlusion for a fog- generating device is further described. During the control process pressurizing means (17) pressurize the thermal energy exchanger (5) by releasing a control fluid into said thermal energy exchanger (5). On detection of a control pressure higher than a threshold value, the control system gives an alarm signal and causes said fog-generating device to release fog-generating gas in order to remove the occlusion.
A fog-generating device (1) is described, comprising at least two containers (3), each of such containers (3) containing therein at least one pressurized fog-generating fluid, at least one thermal energy accumulator (5) adapted to be crossed by such fluid coming from at least one of such containers (3) to generate a change of phase of such fog-generating fluid in a fog-generating gas, and at least one delivering nozzle to the external environment of such fog-generating gas from such thermal energy accumulator (5). A process for managing the operation of such device (1) is further described.
