Abstract

The invention relates to RO water purifier (100) with provision for dispensing hot or cold water. The device has a user-interface through which a user can choose how hot the purified water should be. The RO water purifier (100) comprises a compartment (9) for storage of pre-heated or pre-cooled purified water. The compartment comprises an inlet for return of any undispensed purified hot, cold, or ambient water to flow back from the user-interface. The compartment has an outlet for pre-heated or pre-cooled purified water to flow out into a device (8) for heating or cooling it further as desired by the user. The device for heating or cooling the purified ambient water is configured to heat the water to 80 to 95° C. or alternatively, is configured to cool it to 15 to 5° C., and wherein in said e compartment said pre-heated water is stored at 40 to 75° C. and when it is pre, cooled it is stored at 10 to 20° C., and wherein temperature of said purified ambient water is 25 to 40° C.

IPC Classes  ?

• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Abstract

The invention relates to an electrochemically assisted ion exchange water treatment device comprising a first inlet feeding water into line L0 a prefiltration unit, an electrochemical cell assembly capable of removing ions from a solution stream, the assembly comprising a first unit comprising at least two electrochemical cells connected in parallel with each other, and a second unit connected in series to the first unit; a second inlet for feeding water into line FL during regeneration state, wherein FL feeds water into the first and second units through lines FL12 and FL3 respectively; wherein line FL12 further branches into two lines to feed water into both cells of the first unit; a wastewater line WL and an outlet for discarding wastewater from the cells; a carbon filtration unit positioned downstream of the assembly; an outlet for dispensing treated water.

IPC Classes  ?

• B01D 61/44 - Ion-selective electrodialysis
• B01D 61/46 - Apparatus therefor
• B01D 63/12 - Spiral-wound membrane modules comprising multiple spiral-wound assemblies
• B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
• B01D 69/12 - Composite membranesUltra-thin membranes
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C02F 1/469 - Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis

Abstract

The present invention relates to RO water purifiers. An object is to provide a simpler waterway as compared to prior art, that can be used in RO water purifiers. A further object is to provide an RO purifier comprising a waterway in which one or more components may be easily replaced. Disclosed is a reverse osmosis (RO) water purification device comprising an integrated waterway. The objects are met through the RO water purifier of the invention comprising a waterway which has pre-filter component, an RO component, and a post-filter component. The pre-and post-filter components each comprise pilot-operated solenoid valve having an electro-mechanical solenoid and a hydraulic part which is integrally molded with the component. The pre-filter component is removably connected with the post filter component and the post filter component is removably connected with the RO component via a removable connector. Each solenoid valve comprises a removable electro-mechanical solenoid and a non-removable hydraulic part which is integrally molded with the pre-filter component and said a post-filter component, respectively.

IPC Classes  ?

• B01D 61/08 - Apparatus therefor
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 61/04 - Feed pretreatment
• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 9/00 - Multistage treatment of water, waste water or sewage

Abstract

The invention relates to an electrochemically assisted ion exchange water treatment device. Disclosed is a water treatment device comprising a first inlet feeding water into line L0; a prefiltration unit; a water treatment unit comprising an electrochemical cell assembly comprising of at least one electrochemical cell; and a reverse osmosis unit, wherein the electrochemical cell assembly and the reverse osmosis unit are connected in parallel; a wastewater line for discarding wastewater from the electrochemical cell, through the waste water outlet; a wastewater line for discarding reject water from the reverse osmosis unit, through the reject water outlet; a carbon filtration unit positioned on line L0 downstream of the point N; and an outlet for dispensing treated water. The invention provides a device which gives significantly higher recovery of treated water.

IPC Classes  ?

• C02F 1/469 - Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 1/461 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis

Abstract

Disclosed is a membrane filter unit which includes: a filter case for housing a membrane; an inner tube housing a wastewater chamber and a hollow core tube, a middle tube housing a pure water chamber; the hollow core tube having a top opening at a top end and a bottom opening at a bottom end, and having a water collecting channel on its outer wall and positioned coaxially inside the case, wherein the top opening is adapted to open into the wastewater chamber; and a membrane having an inner peripheral surface, a top outer peripheral surface, a bottom outer peripheral surface and a side outer peripheral surface; and arranged around the core tube such that the inner peripheral surface of the membrane is spirally wound around the core tube and the side outer peripheral surface is capable of permeation of raw water through its surface.

IPC Classes  ?

• B01D 63/10 - Spiral-wound membrane modules
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 65/08 - Prevention of membrane fouling or of concentration polarisation
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Abstract

The present invention relates to RO water purifiers. An object is to provide a simpler waterway as compared to prior art, that can be used in RO water purifiers. A further object is to provide an RO purifier comprising a waterway in which one or more components may be easily replaced. Disclosed is a reverse osmosis (RO) water purification device comprising an integrated waterway. The objects are met through the RO water purifier of the invention comprising a waterway which has pre-filter component, an RO component, and a post-filter component. The pre- and post- filter components each comprise pilot-operated solenoid valve having an electro-mechanical solenoid and a hydraulic part which is integrally molded with the component. The pre-filter component is removably connected with the post filter component and the post filter component is removably connected with the RO component via a removable connector. Each solenoid valve comprises a removable electro-mechanical solenoid and a non-removable hydraulic part which is integrally molded with the pre-filter component and said a post-filter component, respectively.

IPC Classes  ?

• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• B01D 35/00 - Filtering devices having features not specifically covered by groups , or for applications not specifically covered by groups Auxiliary devices for filtrationFilter housing constructions

Abstract

The invention relates to RO water purifier (100) with provision for dispensing hot or cold water. The device has a user-interface through which a user can choose how hot the purified water should be. The RO water purifier (100) comprises a compartment (9) for storage of pre-heated or pre-cooled purified water. The compartment comprises an inlet for return of any undispensed purified hot, cold, or ambient water to flow back from the user-interface. The compartment has an outlet for pre-heated or pre-cooled purified water to flow out into a device (8) for heating or cooling it further as desired by the user. The device for heating or cooling the purified ambient water is configured to heat the water to 80 to 95°C or alternatively, is configured to cool it to 15 to 5°C, and wherein in said compartment said pre-heated water is stored at 40 to 75°C and when it is pre¬ cooled it is stored at 10 to 20°C, and wherein temperature of said purified ambient water is 25 to 40°C.

IPC Classes  ?

• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• E03C 1/04 - Water-basin installations specially adapted to wash-basins or baths

Abstract

000 downstream of the point N; and an outlet for dispensing treated water.The invention provides a device which gives significantly higher recovery of treated water.

IPC Classes  ?

• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 61/42 - ElectrodialysisElectro-osmosis
• B01D 61/44 - Ion-selective electrodialysis
• B01D 61/58 - Multistep processes
• B01J 47/12 - Ion-exchange processes in generalApparatus therefor characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes
• B01J 49/20 - Regeneration or reactivation of ion-exchangersApparatus therefor of membranes
• B01J 49/30 - Electrical regeneration
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 1/469 - Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C02F 1/461 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis

Abstract

oo a prefiltration unit, an electrochemical cell assembly capable of removing ions from a solution stream, the assembly comprising a first unit comprising at least two electrochemical cells connected in parallel with each other, and a second unit connected in series to the first unit; a second inlet for feeding water into line FL during regeneration state, wherein FL feeds water into the first and second units through lines FL12 and FL3 respectively; wherein line FL12 further branches into two lines to feed water into both cells of the first unit; a wastewater line WL and an outlet for discarding wastewater from the cells; a carbon filtration unit positioned downstream of the assembly; an outlet for dispensing treated water.

IPC Classes  ?

• B01D 61/44 - Ion-selective electrodialysis
• B01D 61/58 - Multistep processes
• C02F 1/469 - Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
• B01D 63/10 - Spiral-wound membrane modules
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 1/461 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis

Abstract

Disclosed is a membrane filter unit (1) comprising: (a) a filter case (2) for housing a membrane (3); (b) an inner tube (4) housing a wastewater chamber (4A) and a hollow core tube (7), a middle tube (5) housing a pure water chamber (5A) and an outer tube (6) housing a feed water chamber (6A), wherein the inner tube (4), the middle tube (5) and the outer tube (6) are coaxially arranged and formed inside the filter case (2) between the inner wall of the filter case (2) and other components positioned within the filter case and inner tube (4) is formed by at least a part of the central hollow tube and at least a part of the hollow core tube (7) sealingly fitted with each other; (c) the hollow core tube (7) having a top opening (7A) at a top end (7TE) and a bottom opening (7B) at a bottom end (7BE), and having a water collecting channel (8) on its outer wall and positioned coaxially inside the case (2), wherein the top opening (7A) is adapted to open into the wastewater chamber (4A); and (d) a membrane (3) having an inner peripheral surface (3A), a top outer peripheral surface (3B), a bottom outer peripheral surface (3C) and a side outer peripheral surface (3D); and arranged around the core tube (7) such that the inner peripheral surface (3A) of the membrane is spirally wound around the core tube (7) and the side outer peripheral surface (3D) is capable of permeation of raw water through its surface; wherein the membrane has a bottom cover (9) and a top cover (10), the top cover (10) sealingly engaged with the top outer peripheral surface (3B) of the membrane (3) and comprising a through central hole (10A) adapted for and sealingly fitted to the core tube (7) to facilitate passage of waste water through the core tube (7) into the waste water chamber (4A); and the bottom cover (9) engages with the bottom outer peripheral surface (3C) of the membrane (3) having a bottom cover central hole (9A) spanning beyond the bottom opening (7B) of the core tube (7) to allow passage of water from the outer tube (6) through the membrane (3) and the bottom cover central hole (9A) of the core tube (7) and wherein the bottom cover (9) of the membrane (3) is capped by a bottom cap (9B) which sealingly engages with the bottom cover (9) and the top cap (2T) of the filter case (2) comprises an inner wall and an outer wall and wherein from the inner wall of the top cap (2T) two hollow concentric tubes descend downwardly, a central hollow tube (4C) and a peripheral hollow tube (4P) each having respective inner walls and outer walls.

IPC Classes  ?

• B01D 63/10 - Spiral-wound membrane modules
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 65/08 - Prevention of membrane fouling or of concentration polarisation

Abstract

Disclosed is a membrane filter unit (1) comprising:(a) a filter case (2) for housing a membrane (3);(b) an inner tube (4) housing a treated water chamber (4A) and a hollow core tube (7), a middle tube (5) housing a waste water chamber (5A) and an outer tube (6) housing a feed water chamber (6A), wherein the inner tube (4), the middle tube (5) and the outer tube (6) are coaxially arranged;(c) the hollow core tube (7) having a top opening (7A) and a bottom opening (7B) and having plurality of water collecting pores (8) on its surface and positioned coaxially inside the case (2), wherein the top opening (7A) is adapted to open into the treated water chamber (4A);(d) the membrane (3) having an inner peripheral surface (3A), a top outer peripheral surface (3B), a bottom outer peripheral surface (3C) and a side outer peripheral surface (3D); and arranged around the core tube (7) such that the inner peripheral surface (3A) of the membrane is spirally wound around the core tube (7) and the side outer peripheral surface (3D) is capable of permeation of raw water through its surface; wherein a top cover (10) and a bottom cover (9) are sealingly engaged with the top outer peripheral surface (3B) and the bottom outer peripheral surface (3C) of the membrane (3) respectively; and wherein the top cover (10) comprises a through central hole (10A) adapted for and sealingly fitted to the core tube (7) to facilitate passage of treated water through the core tube (7) into the treated water chamber (4A) and at least two bands of plurality of orifices (10P,10D) opening into the waste water chamber (5A) and arranged around the circumference of the central hole (10A) such that the bands (10P,10D) are arranged concentrically to the central hole (10A), wherein the top cover (10) of the membrane (3) is capped by a membrane connector (11), the membrane connector comprising a cover plate (11P) extending upwardly towards center to form a raised enclosure (11R), wherein the raised enclosure (11B) sealingly engages with the peripheral hollow tube (4P) and the membrane connector (11) is axially spaced from the top cover (10) to allow passage of water from the at least two bands of plurality of orifices (10P,10D) into the waste water chamber (5A).

IPC Classes  ?

• B01D 63/10 - Spiral-wound membrane modules
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 65/08 - Prevention of membrane fouling or of concentration polarisation

Abstract

The present invention relates to a low-noise water purifier with a reverse osmosis (RO) long-term effective constant-flow control system, and the low-noise water purifier comprises a pipeline structure, a filter assembly, a water pump, a flow detection module and an electric control system; one end of the pipeline structure is provided with the filter assembly, the other end of the pipeline structure is provided with the flow detection module, and the filter assembly comprises an RO membrane, front filter cartridges and a rear filter cartridge; the water pump is disposed between the front filter cartridges and the flow detection module, the RO membrane is disposed between the flow detection module and the water pump, the rear filter cartridge is disposed between the RO membrane and the flow detection module, and the water pump and the flow detection module are respectively electrically connected with the electric control system. After the present invention is used, the flux of purified water passing through the RO membrane in a unit of time is reduced and the service life of the RO membrane is prolonged by controlling the flow rate of raw water. In addition, noise can be reduced by lowering the speed of the water pump. Furthermore, a target flow rate can be set through the electric control system.

IPC Classes  ?

• C02F 1/00 - Treatment of water, waste water, or sewage
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 61/12 - Controlling or regulating
• C02F 9/00 - Multistage treatment of water, waste water or sewage
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Abstract

Disclosed are a spiral wound reverse osmosis membrane element, a spiral wound reverse osmosis membrane module and a process for making the reverse osmosis membrane element.

IPC Classes  ?

• B01D 63/10 - Spiral-wound membrane modules
• B01D 63/12 - Spiral-wound membrane modules comprising multiple spiral-wound assemblies

Abstract

The present invention relates to the field of water purification, and discloses a multifunctional wastewater proportioner, comprising a wastewater proportioner main body (1) in which an inner chamber (12) and an outer chamber (13) are constructed by means of an annular wall (11), with a water inlet in communication with the outer chamber and a water outlet in communication with the inner chamber being provided on the wastewater proportioner main body, and also comprising a regulating shaft core (2) which is inserted in the wastewater proportioner main body and can move transversely in the wastewater proportioner main body, with one end of the regulating shaft core being a flow restrictor (22), which flow restrictor is a tubular structure with a centre hole (221) provided in a middle part thereof, and at least two flow restricting holes (222) in communication with the centre hole being provided in a tubular wall, the number of flow restricting holes being 2 to 15; a connecting hole (110) establishing communication between the inner chamber and outer chamber is provided in the annular wall, the flow restrictor can be inserted in the connecting hole, and when the flow restrictor is inserted in the connecting hole, the inner chamber can be in communication with the outer chamber via the flow restricting holes and centre hole.

IPC Classes  ?

• F16K 3/26 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
• F16K 3/32 - Means for additional adjustment of the rate of flow
• F16K 31/54 - Mechanical actuating means with toothed gearing with pinion and rack
• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Abstract

The present invention relates to the field of water purification, and discloses a method for preparing a nano MgO activated carbon for adsorbing heavy metals. Specifically, is the method comprises the following steps: a. treating activated carbon with dilute nitric acid, then washing in water and anhydrous solvent, and drying at 60 to 80°C, to obtain treated activated carbon; b. providing an aqueous Mg(NO3)2 solution with deionized water as a solvent; c. adding the treated activated carbon obtained from step a to the aqueous Mg(NO3)2 solution obtained from step b, and stirring to mix evenly; d. preparing an aqueous urea solution, then dripping the aqueous urea solution into the solution processed in step c, and stirring to obtain a liquid mixture; e. drying the activated carbon processed in step d at 60 to 80°C.; and f. calcining the activated carbon processed in step e to obtain nano MgO activated carbon for adsorbing heavy metals. In the present invention, flower-like nano MgO is loaded on the surface or in the voids of activated carbon by a chemical deposition method; this can not only preserve the intrinsic characteristics of a nano material, but also enhance the stability thereof, and the heavy metals lead and cadmium in drinking water can be adsorbed efficiently.

IPC Classes  ?

• B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
• B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
• B01J 20/32 - Impregnating or coating
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C02F 101/20 - Heavy metals or heavy metal compounds

Abstract

The present invention relates to a household water purifier, and discloses a reverse osmosis water purifier, comprising a feed water inlet in fluid connection with a reverse osmosis unit (1), the reverse osmosis unit having a reject water outlet and a pure water outlet through a reject water output pipe (12) and a pure water output pipe (13) respectively, wherein, the pure water output pipe (13) is connected to a pressurizable tank (2) through a water storage pipe (21) having a first valve (22) disposed on the water storage pipe (21), between the pure water outlet and the pressure tank (2); the pressurizable tank (2) is connected to the feed water inlet of the reverse osmosis unit (1) via a backflow pipe (23) having a second valve (24), between the pressurizable tank (2) and the reverse osmosis unit (1); and a third valve (130) is disposed on the pure water output pipe (13). At the end of the normal water-producing state, the pure water outlet is closed and the water purifier continues to produce pure water, which is stored in the pressurizable tank (2) until a high pressure switch (6) is triggered to act, stopping water production, the pure water then flowing from the pressurizable tank (2) through the backflow pipe (23) to the feed water inlet of the reverse osmosis unit (1), thereby removing reject water at the reverse osmosis membrane surface.

IPC Classes  ?

• B01D 61/10 - AccessoriesAuxiliary operations
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Abstract

The present invention provides a pressure-adjustable high-pressure switch, comprising • a micro switch (1); • a triggering assembly (2) for triggering the micro switch (1); • a valve body (3) with a water flow channel (31) provided therein; • a support (4) fixed to the valve body (3); • and a piston (5) disposed in the support (4) for triggering of the micro switch (1) by the triggering assembly (2); • a water passage channel (6) in fluid communication with the water flow channel (31) provided in the valve body (3); • a diaphragm (7), positioned at one end of the water passage channel (6) wherein the diaphragm (7) pushes the piston (5) under the action of water pressure; • a spring (8), wherein the spring (8) causes the piston (5) to move towards the diaphragm (7), • an adjuster (9) for adjusting the degree of compression of the spring (8) is provided on the support (4); and • a housing (10), comprising the support (4), the micro switch (1) and the triggering assembly (2).

IPC Classes  ?

• H01H 35/34 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
• H01H 35/26 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow Details
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• A47J 31/60 - Cleaning devices

Abstract

The present invention relates to the field of end point drinking water treatment, and to a water purification filter. Disclosed are a photocatalyst carbon filter medium and a preparation method and use thereof. It comprises a carbon filter medium body, with a photocatalyst layer being provided on the carbon filter medium body, and the carbon filter medium is used as a support. The carbon filter medium has a complex pore structure, so can adsorb, at a deep level, minute particles, colloids, bacteria and suspended matter in filtered water. The carbon filter medium is used as a support, effectively combining adsorption with degradation, and can greatly enhance the photocatalytic efficiency of TiO2, to effectively remove organic pollutants, which degrade with difficulty, from drinking water. Moreover, the invention also has characteristics such as an easily controlled reaction and easy operations, and has very broad prospects for market development and applications in the field of purification of household end point drinking water.

IPC Classes  ?

• C02F 1/32 - Treatment of water, waste water, or sewage by irradiation with ultraviolet light
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption

Abstract

The present invention relates to an activated carbon, and discloses a method for preparing a nano α-Fe2O3 modified activated carbon and a use thereof, by a. treating activated carbon in dilute nitric acid, washing with water and anhydrous solvent, and drying at 60 to 80°C, to obtain treated activated carbon; b. providing an FeCl3 solution with a solution concentration from 167 to 835 mol/L in an anhydrous solvent, and adding urea in a concentration of 250 to 1250 mol/L, and stirring to mix evenly; c. transferring the solution obtained from step b into a high-pressurizable vessel, adding the treated activated carbon obtained from step a, and stirring; d. heating the pressurizable vessel from step c at a temperature in the range of 150 to 180°C to obtain processed activated carbon; and e. washing the processed activated carbon obtained from step d with an anhydrous solvent, and drying at 60 to 80°C to obtain nano α-Fe2O3 modified activated carbon. The nano α-Fe2O3 modified activated carbon obtained in the present invention can not only retain the intrinsic characteristics of a nano material but also enhance the stability thereof, can efficiently adsorb the heavy metals chromium and arsenic in drinking water, is suited to reactor operations, and has characteristics such as an easily controlled reaction, easy operations and convenient maintenance, so has very broad prospects for market application and development.

IPC Classes  ?

• B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
• B01J 20/06 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• B01J 20/32 - Impregnating or coating
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C02F 101/20 - Heavy metals or heavy metal compounds

Abstract

The present invention relates to the field of purification equipment, and discloses filter adapted for use as a pre-filter, comprising a tubular body; a filter core assembly is provided in the tubular body, a pipe passing through the filter core assembly is also provided in the tubular body, the bottom of the pipe is in communication with the interior of the tubular body, the top passes out of the tubular body and is connected to an electrical ball valve, and a dirt discharge port is provided on the electrical ball valve. The filter of the present invention is designed rationally so as to attain better forward flushing and back-flushing effects. The flushing function thereof can be realized through fully automated control. It has advantages such as high efficiency, low cost and strong adaptability.

IPC Classes  ?

• B01D 35/153 - Anti-leakage or anti-return valves
• B01D 29/15 - Supported filter elements arranged for inward flow filtration
• B01D 29/70 - Regenerating the filter material in the filter by forces created by movement of the filter element
• B01D 29/96 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor in which the filtering elements are moved between filtering operationsParticular measures for removing or replacing the filtering elementsTransport systems for filters

Abstract

A composite filter element and an adapter thereof. The composite filter element comprises a filter element housing body (1) formed by a filter element housing (11) and a filter element housing cover (12). The filter element housing body (1) is internally provided with a PP cotton filter element (2) and an activated carbon filter element (3); a connection gland (4) is spaced between the PP cotton filter element (2) and the activated carbon filter element (3); the PP cotton filter element (2) is clamped and sleeved with a PP cotton head (5); the PP cotton head (5) is connected with a filter element divider (6) which is provided with a water inlet sub-channel and a water outlet sub-channel; a positioning support (13) is integrally formed on a bottom wall of the filter element housing body (1); a partition board (7) seats on the positioning support (13), and forms a purified water chamber (D) with the bottom wall of the filter element housing body (1); a purified water conduit (8) for communicating the water outlet sub-channel with the purified water chamber (D) is arranged passing through the centers of the PP cotton filter element (2) and the activated carbon filter element (3); the peripheral surface of the connection gland (4) and an inner wall of the filter element housing body (1) are subjected to liquid sealing and matched with the PP cotton head (5) and the PP cotton filter element (2) to form a water inlet chamber (A) and a primary filter chamber (B) that are communicated with the water inlet sub-channel; the filter element housing cover (12) is provided with a self-closing filter element connection seat (9) which has a water inlet connector (9a) and a water outlet connector (9b); and the water inlet connector (9a) and the water outlet connector (9b) are in ejection connection with and are communicated with the water inlet sub-channel and the water outlet sub-channel respectively after opening.

IPC Classes  ?

• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• B01D 24/10 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container

Abstract

A loose-proof structure of a filter cartridge shell, includes: a filter cartridge shell body, the filter cartridge shell body has an open end which includes several treads in its inside and an upper end surface, and an upper end cover, which is hermetically and spirally coupled with the filter cartridge shell body. The upper cover has a raised rafter edge. The raised rafter edge and the open end are equipped with a loose-proof fixed ring. a periphery surface of the raised rafter edge has loose-proof locking teeth, an inside surface of the loose-proof fixed ring has loose-proof tooth spaces matching with the loose-proof locking teeth. An external end surface of the open end has loose-proof scabs, the loose-proof fixed ring has loose-proof grooves on its bottom matching with the loose-proof scabs.

IPC Classes  ?

• B01D 35/30 - Filter housing constructions