100 results about "Membrane filter" patented technology

A sampling device including an intake pump coupled with a volume controller to provide a known volume of samples such as liquid collected through a specialized hollow membrane filter. Once the known volume of sample is filtered the intake pump is turned off, an air pump turns on and removes residual or excess sample. The membrane filter is then preserved for extraction of DNA / RNA.

The utility model discloses a kind of RO reverse osmosis membrane filter element, including filter cylinder, the inside fixed mounting of filter cylinder is equipped with bulkhead, the middle part fixed mounting of bulkhead is equipped with permeate collection pipe, the inside of filter cylinder is provided with filter assembly;The two ends of filter cylinder are respectively threadedly connected with liquid inlet end cap and liquid outlet end cap, and the side wall of liquid outlet end cap is equipped with sewage outlet. The utility model is through multistage modularization filtration design, effectively improves water purification effect, while simplifies maintenance process, reduces cost, ensures the safety and purity of effluent water quality.

This invention discloses a water purification device, including a filtration unit and a reverse osmosis filter. The filtration unit includes a housing and an ultrafiltration membrane filter element and an adsorption filter element installed inside the housing. The housing is provided with a raw water inlet, an adsorption outlet, and an ultrafiltration outlet. Water filtered by the ultrafiltration membrane filter element is configured to flow out through the ultrafiltration outlet and also configured to flow out through the adsorption outlet after being filtered by the adsorption filter element. The reverse osmosis filter includes a raw water inlet, a pure water inlet, and a wastewater inlet. The adsorption outlet is connected to a water tap via a domestic water pipe. The ultrafiltration outlet is directly or indirectly connected to the raw water inlet. The pure water inlet is directly or indirectly connected to a drinking water pipe, which is connected to the water tap. An eighth control valve is provided on the domestic water pipe, configured to regulate the water flow and on / off state in the domestic water pipe. This invention can avoid clogging of the ultrafiltration membrane filter element, realize the mixing of domestic water and pure water, and adjust the TDS of the mixed water.

The utility model relates to a guide rail type filtering module device convenient to replace quickly, it includes base, sliding seat, first guide rail, second guide rail and filtering module, filtering module includes water pump, PP cotton filter core, preposition active carbon filter core, RO membrane filter core, postposition active carbon filter core and solenoid valve, and first guide rail and second guide rail are respectively horizontally established in the both sides of sliding seat, and sliding seat is set up on the base through first guide rail and second guide rail horizontal sliding, and water pump, PP cotton filter core, preposition active carbon filter core, RO membrane filter core, postposition active carbon filter core and solenoid valve are established on sliding seat. The utility model discloses the sliding seat is set up on the base through first guide rail and second guide rail horizontal sliding, and the base is fixed in the inner chamber of water dispenser, therefore, the sliding seat and filtering module of the utility model can remove the inner chamber of water dispenser, to be convenient for the user to carry out the work such as filter core replacement or maintenance spare part, and filter core replacement speed is fast.

1. Name of the product in this design: Membrane Filter (1). 2. Purpose of this design: For quantitative filtration and retention of microorganisms in samples. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

The application provides a phosphogypsum residue field water treatment process based on a membrane coupling chemical reactor, relates to the technical field of wastewater resource treatment, and can selectively perform gradient precipitation on fluorine, phosphorus, nitrogen and sulfur, cooperates with a membrane filter for targeted design, realizes a membrane separation process resistant to high-concentration suspended solids, and can make the membrane flux attenuation rate less than 5% / day. The application can effectively separate fluorine, phosphorus and nitrogen from water to form mud with resource value, the value of the resource product per ton of water treatment is higher than the treatment cost, 80% of the recovered water meets the industrial recycling standard, and the phosphogypsum residue field water can be advantageously used for quasi-zero emission and deep high-value resource utilization.

The utility model relates to the technical fields of film winding machine, specifically disclose a RO membrane filter core film winding device, including movable frame, one end of movable frame is equipped with first connecting plate, and the other end is equipped with second connecting plate, first connecting plate and second connecting plate all are installed on the base plate through first slide rail sliding block, install rotatable limit axle on first connecting plate, install the top axle that can reciprocate limit axle direction on second connecting plate, be provided with film press roller assembly between limit axle and top axle, film press roller assembly can be telescopically installed on movable frame, this RO membrane filter core film winding device prevents the position deviation and leads to the winding RO film to appear winding deviation when winding, and limit axle can drive filter core pipe rotation and wind, and film press roller assembly can extend to filter core pipe direction, and the edge winding is pressed tightly RO film, improves product quality.

This utility model discloses a hydrogen injection device for a hydrogen refueling station, including a cooling tank. A first connecting pipe and a second pair of connecting pipes are fixedly installed opposite each other on both sides of the cooling tank. A heat exchange pipe is fixed between the first connecting pipe and the second pair of connecting pipes. Multiple filter cartridges are arranged on the side of the cooling tank closest to the first connecting pipe. Each filter cartridge contains a primary filter screen, a secondary ceramic fiber filter element, and a terminal polymer membrane filter element. The filter cartridges closest to the cooling tank are connected to the first connecting pipe, and the multiple filter cartridges are connected to each other via the second connecting pipe. The top of the filter cartridges furthest from the cooling tank is fixed with the first pair of connecting pipes. Through this structure, the cooling tank effectively suppresses temperature rise during refueling, reducing safety risks caused by the easily elevated temperature of hydrogen during refueling. The three-stage filtration module reduces potential damage to components from contaminant particles in the hydrogen fuel, effectively extending the lifespan of critical components.

This invention relates to the field of water purification technology, specifically providing a water purification device aimed at solving the problems of low cleaning efficiency, poor cleaning effect, and poor user experience caused by the residue of a small amount of cleaning agent in existing water purification devices. The water purification device of this application includes a reverse osmosis membrane filter element, a cleaning component, a circulation pipe, and a pure water component. The inlet and wastewater ends of the cleaning component and the reverse osmosis membrane filter element are sequentially connected to form a cleaning circuit. The water purification device can drive the cleaning liquid to circulate within the cleaning circuit and discharge the pure water end of the reverse osmosis membrane filter element to the outside of the filter element. By circulating the cleaning liquid within the cleaning circuit to repeatedly flush the reverse osmosis membrane filter element, the cleaning time is effectively shortened, the cleaning effect is improved, and the discharge of pure water containing a small amount of cleaning agent further contributes to achieving zero pollution and zero chemical addition, greatly enhancing the user experience.

This invention discloses a water purification system and its control method for producing sparkling water, belonging to the field of sparkling water production and processing technology, and designed to solve the problem of low flow rate in existing sparkling water production. The water purification system for producing sparkling water disclosed in this invention includes: an inlet pipe equipped with a pressure reducing valve; a sparkling water pipe connected to the inlet pipe; a purified water pipe connected to the inlet pipe, equipped with an RO membrane filter; a concentrated water pipe connected to the concentrated water outlet of the RO membrane filter; and a return pipe, one end of which is connected to the inlet pipe and located outside the outlet of the pressure reducing valve, and the other end of which is connected to the concentrated water pipe. The connection between the return pipe and the concentrated water pipe is connected to an air intake assembly, which is configured to supply air to the concentrated water pipe. The water purification system and its control method for producing sparkling water disclosed in this invention produce a large flow rate of sparkling water, with a high and uniform bubble content, and stable sparkling water production.

The utility model discloses a kind of combined pipe network formula high-pressure reverse osmosis membrane filter device, including outer shell, the front and rear two sides of the outer shell are fixedly connected with plugboard, the inner wall of the outer shell is equipped with sliding slot, the surface of the plugboard is equipped with first recess, the inner wall of the first recess is fixedly connected with first spring, the end of the first spring away from the first recess is fixedly connected with locating block, the surface of the plugboard is provided with end cap, the side of the end cap close to the outer shell is provided with slot, the upper and lower sides of the end cap are equipped with locating slot. The utility model is by corresponding with sliding block and sliding slot, press end cap inwards, make sliding block slide in sliding slot inside, first spring is extruded and shrinks, wait for plugboard end surface and slot inner wall contact, make locating block engage in locating slot under the first spring elasticity, to fix the position of outer shell and end cap, when needing disassembly, press locating block inwards, pull end cap outwards, so that both can be separated, to complete disassembly.

The utility model relates to a kind of split type membrane filter, including filter piece and sample container;Sample container is formed with container cavity in it, and container nozzle is provided on sample container, and container nozzle is used for sample liquid to enter and exit container cavity;Filter piece is provided with filter cavity in it, and the bottom of filter piece is provided with water outlet hole communicated with filter cavity, filter membrane is provided in filter cavity, and filter membrane is used to filter liquid from filter cavity to water outlet hole;Interface is provided on filter piece and is communicated with filter cavity, and interface is suitable for detachably connected with container nozzle;When container nozzle is connected with interface, sample container is connected with filter piece as a whole, and container cavity is communicated with filter cavity by the channel formed by the connection of container nozzle and interface.The utility model can sample and transport sample liquid by sample container, and it is beneficial to the popularization of membrane filtration method.The utility model reduces the restriction to the size of filter piece, which helps to reduce the manufacturing cost, storage cost and transportation cost of filter piece.

The utility model discloses an aeration outer pressure weeping willow type hollow pipe type membrane filter, including the shell, the bottom end of one side outer wall of shell is through having the water inlet pipe, the bottom end fixedly connected with aeration device of inner wall of shell, the bottom fixedly connected with the air inlet pipe of aeration device, the top fixedly connected with a plurality of spray heads of aeration device, the top end of the other side outer wall of shell is through having the frame, and the inner wall sleeve joint of frame has the plugging board, through setting hollow pipe type membrane, these membrane materials have higher surface area and good water permeability, can utilize the effective area of membrane in the filtering process maximum limit, through setting the connecting structure between a plurality of first threaded rods and screw caps, can fix a plurality of cross bars on the jack field, after taking out the plugging board from the frame, can dismantle and replace the cross bar of existing damage hollow pipe type membrane, not only has improved the filtering efficiency of the device, has further improved the service life of whole filter simultaneously.

This application discloses a method for producing industrial-grade ammonium dihydrogen phosphate, comprising: a desulfurization reaction tank, a heavy metal removal reaction tank, a multi-stage aeration tank, a settling tank, a primary membrane filter, an acid mixer, a neutralization reaction tank, and a multi-stage plate and frame membrane filter assembly; the desulfurization reaction tank and the heavy metal removal reaction tank are connected by pipelines; the outlet of the heavy metal removal reaction tank is connected by pipeline to the inlet of the first-stage aeration tank of the multi-stage aeration tank; the outlet of the last-stage aeration tank of the multi-stage aeration tank is connected by pipeline to the inlet of the settling tank. This method, by adding a primary membrane filter assembly before acid conditioning, reduces the impurity and solid content of the pretreated acid, increases phosphorus yield, reduces the amount of ammonium slag in the pretreated acid, and reduces filtration intensity, which is beneficial for improving product quality and the system's capacity after maintenance. The equipment used is reliable, requires low investment, has low labor intensity, and can achieve continuous and stable operation.

The application relates to the technical field of surveying equipment protection, and discloses a gas protection device for surveying equipment, which comprises a transparent cover body and a base, and the transparent cover body is mounted on the top of the base. The gas protection device for surveying equipment is provided with a HEPA filter layer, an activated carbon filter layer and a hydrophobic membrane filter layer. When air is exchanged, the HEPA filter layer can filter the particulate impurities in the gas, the activated carbon filter layer can filter the chemical gas in the gas, and finally, the hydrophobic membrane filter layer can prevent water vapor from flowing into the transparent cover body. Through the three-layer filter structure, the odor adsorption, particle filtration and waterproof triple protection can be realized. Meanwhile, through the detachable design of the sliding plate and the sliding groove, the filter layer can be quickly replaced, the maintenance cost is low, and under the action of the conical hopper and the exhaust fan, an air exchange system can be formed, the internal air pressure is slightly higher than the external air pressure, and the external pollution can be prevented from flowing in.

This invention discloses a method, system, equipment, and medium for calculating the cycle water production of a water purifier / softener. The method includes: detecting liquid water in the water purification system using a pre-membrane ion concentration detection module and a post-membrane ion concentration detection module to obtain corresponding first and second detection data; obtaining the cycle water production and the ion rejection rate of the membrane filter; the cycle water production is used to characterize the maximum water volume that the softening system can handle within a single regeneration cycle; calculating a target divalent ion contribution value based on the ion rejection rate, the first detection data, and the second detection data; determining a target adjustment coefficient based on the target divalent ion contribution value; and updating the cycle water production based on the target adjustment coefficient. This invention integrates water softening and purification functions, calculating the divalent ion contribution value in the water through the purification effect of the water purification system, and then automatically and intelligently adjusting the cycle water production of the softening system based on the target adjustment coefficient, thus avoiding waste of liquid water and salt and improving the softening effect.

The membrane filter apparatus according to the present invention includes one or more filter housings; one or more membrane filters disposed within the one or more filter housings; one or more lower caps attached to the lower end of each of the one or more filter housings via a first housing coupling member and containing a raw water inlet; one or more upper caps attached to the upper end of each of the one or more filter housings via a second housing coupling member and containing a first outlet and a second outlet; and an air supply port for supplying air to the internal space of the upper caps. The first filtered water, obtained by filtering raw water injected through the inlet through one or more membrane filters, is discharged through the first outlet. Here, backwashing is performed so that the water injected through the first outlet comes into contact with air.

The utility model relates to water purification equipment technical field discloses a pure water machine of convenient replacement filter core and adjustable wastewater ratio, through multistage filter core intercommunication realizes grading filtration, wherein reverse osmosis membrane filter core separates pure water and wastewater, adopts detachable connecting structure fast assembly and disassembly between adjacent filter core, sets up four-way valve, pure water valve, wastewater regulating valve and flush valve in transmission pipe network and controls in coordination: when closing pure water valve, linkage four-way valve is cut off simultaneously in double waterway, rotates wastewater regulating valve and dynamically adjusts wastewater discharge proportion, opens flush valve and reversely clean reverse osmosis membrane. Circulation pipeline realizes wastewater secondary utilization. Solve the traditional equipment core complex, wastewater ratio rigidification and shutdown leakage problem, and have the operation convenience and resource adaptive optimization ability.

The utility model provides a kind of filter element assembly, joint seat and pure drinking machine belong to filter element technical field, a kind of filter element assembly, for filter element, including filter element joint and the shell fixedly connected with filter element joint, shell is enclosed into the cavity of accommodating filter element, filter element is RO membrane filter element and has the central pipeline for gathering purified water, raw water enters by the top of filter element, waste water flows out by the bottom of filter element and enters the waste water passage formed by the gap of filter element and shell, the technical scheme can realize positive washing, without setting valve structure, without frequent operation.

A nanocomposite sorbent which contains molybdenum carbide, molybdenum nitride, and molybdenum oxide. The nanocomposite sorbent is in the form of nanosheets having a mean size of 10 to 100 μm and a mean thickness of 10 to 1000 nm. A method of forming the nanocomposite sorbent is also provided. The nanocomposite sorbent is used to form a membrane filter with a fluorinated polymer. The nanocomposite sorbent and membrane filter are each used in a method of removing an organic pollutant from water.

The application belongs to the technical field of ethanol recovery, in particular to a membrane filtration ethanol recovery equipment, and proposes the following scheme: a support is provided with a raw material tank at the back side, the top of the raw material tank is connected with a feeding assembly, the end of the feeding assembly is connected with a heat exchange assembly, one side of the heat exchange assembly is connected with an evaporator, the inside of the evaporator is provided with an evaporation pipe, the back side of the evaporator is provided with a fan, and the bottom of the evaporator is provided with a liquid discharge valve; in the use process, the ethanol solution containing water enters the heat exchanger and the evaporator for treatment through the feeding assembly, is effectively vacuum filtered through a membrane filter, and then the product is cooled to below 35 DEG C in a product cooler and is sent to the inside of a product tank for finishing processing; the heat exchanger is arranged to improve the temperature of the feeding liquid through product heat exchange, thereby saving energy consumption.

This utility model relates to a single-water RO machine with a built-in pressure tank, belonging to the technical field of water purification equipment. It includes a frame, an inlet connector, an outlet connector, and a wastewater connector. The inlet connector, outlet connector, and wastewater connector are located at the rear end of the frame. An RO membrane filter element is installed inside the frame. A wastewater solenoid valve is installed between the lower part of the RO membrane filter element and the wastewater connector. A composite filter element is installed between the RO membrane filter element and the inlet connector. An inlet solenoid valve connected to the RO membrane filter element and the composite filter element is located at the lower end of the composite filter element. A post-carbon filter element connected to the outlet connector and the RO membrane filter element is installed on the side of the RO membrane filter element. A pressure tank connected to the upper end of the post-carbon filter element is located between the RO membrane filter element and the composite filter element. It features a compact structure, convenient assembly and disassembly, and good operational stability. The composite filter element, RO membrane filter element, and post-carbon filter element work together to ensure efficient filtration and pure water supply.

The utility model relates to sewage treatment technical field discloses a kind of separating devices for sewage treatment, including separating bucket, the push rod lifting frame is arranged at the top of separating bucket, sealing component is arranged in the inside of separating bucket, motor cleaning component is arranged at the bottom of separating bucket, the bucket cover is arranged at the top of push rod lifting frame, multistage filtering component is arranged in the inside of push rod lifting frame, the upper surface of bucket cover is provided with water pump, and the lower surface of bucket cover is provided with filter tube component;The utility model is driven sewage by water pump from below to flow upwards, and then through the porous ceramic filter plate, activated carbon filter plate and ultrafiltration membrane filter plate on multistage filtering component, sewage can be filtered actively and multilayer, save time, improve separation efficiency, and filter plate can be quickly assembled and disassembled, to reduce cleaning, maintenance difficulty.

The utility model discloses industrial wastewater full membrane method processing device, including assembly support frame, the assembly support frame top is passed through and is connected with the assembly conical barrel that rotates, the assembly conical barrel outside wall fixed sleeve has the assembly tooth ring, the assembly conical barrel top fixedly connected with the assembly feed pipe, the assembly feed pipe end is connected with the membrane filter through the assembly pumping pump, the membrane filter side wall is connected with the assembly pipe. The utility model discloses, through the fixed motor drive fixed disc on the fixed rotating shaft inside the sliding of the regulating mezzotint, make drive regulating mezzotint on the regulating push rod along the direction of assembly conical barrel and move, then regulating mezzotint also drive regulating push rod on the regulating sleeve frame moves up and down and carries out fully tamping mixed stirring to sewage and liquid medicine, make reduce the impurity in sewage, and carry out centrifugal filtration treatment to sewage, need not to filter again, thereby improve use effect.

The utility model relates to liquid filtering technical field discloses the folding polytetrafluoroethylene composite microporous filter membrane filter core, including the top cover, the bottom of top cover is provided with the filter mechanism, the filter mechanism is used for filtering liquid, the bottom of filter mechanism is provided with the mounting mechanism, the mounting mechanism is used for installing whole device, the bottom of top cover is provided with the support mechanism, the filter mechanism includes the outer skeleton, the top of outer skeleton is fixedly connected in the bottom of top cover, the inboard fixedly connected with the flow guide braid of outer skeleton, the inboard fixedly connected with the filter membrane of flow guide braid, the inboard fixedly connected with the support braid of filter membrane, in the utility model, the outer skeleton and the inner skeleton provide structural support for filter membrane, and filter membrane carries out high accuracy filtration to liquid, realizes the stable operation of filter core under high temperature and strong corrosion environment, prolongs the service life of filter core, and guarantees the filtration effect of filter core high purity.

The utility model discloses MBR sewage treatment and water reuse device, include: device main body, filter component, device main body includes pretreatment pool, adjusting pool, MBR membrane filter pool, disinfection pool and the control box fixed installation of pretreatment pool outer end, filter component includes the filter grating of the movable installation in pretreatment pool. MBR sewage treatment and water reuse device of the utility model, the left filter chamber and the right filter chamber of the filter grating both sides setting in pretreatment pool can be adjusted to the filter of sewage in the bottom of inlet pipe alternately moves to the second electric push rod, to avoid the problem of the long -time use of single filter structure and appear the blockage, simultaneously, in the alternate use of left filter chamber and right filter chamber, the filter chamber that does not use can also carry out the timely unified push material of the filter impurities in it through the push material block of the drive of first electric push rod, to export through the one side's discharge port and discharge nozzle, avoid the impurities of filtration to accumulate in left filter chamber or right filter chamber.

This invention relates to the field of ion-exchange membrane caustic soda production technology, specifically to a water balance control system and control method for a primary brine refining unit. The system includes a water distribution tank, a brine pump, a salt dissolving tank, a baffle tank, an intermediate tank, an inorganic membrane filter, a salt mud tank, a primary brine tank, and a DCS control system. This invention achieves closed-loop automatic balance throughout the entire primary brine refining process, from salt dissolving to the delivery of qualified primary brine. It eliminates human error and delays, reduces production fluctuations and even accident risks caused by human error or untimely response, and ensures the stability of key parameters such as brine concentration and flow rate, providing high-quality and stable raw brine for subsequent electrolysis processes.

The utility model discloses a kind of filtering recovery devices of alkali-containing wastewater, including fixed bottom plate, the top surface middle part of the fixed bottom plate is fixed with lower support shell, the top surface middle part of the top plate of lower support shell is profiled with upper installation groove, the lower part of upper box body is inserted in upper installation groove, the bottom surface of the bottom plate of upper box body is pressed in the bottom surface of upper installation groove, the outer side wall of the bottom of upper box body is close to or close to the inner side wall of upper installation groove, the top plate of upper box body is fixedly connected on the top plate of lower support shell by bolt, the top surface middle part of the bottom plate of upper box body is fixed with placing rack, the top surface side of the top plate of placing rack is fixed with rectangular limit frame, the lower part of feed box body is inserted in rectangular limit frame;It can be filtered after wastewater is filtered multiple times, sodium hydroxide and water liquid can be discharged from first liquid discharge pipe by alkali-resistant nanofiltration membrane filter element, realize collection and reuse, improve the recycling of alkali, reduce the use of acid, environmental protection effect is good, simultaneously, reduce processing cost.

The utility model discloses a kind of honeycomb ceramic membrane assemblies of combined modular structure, including conical fairing, honeycomb ceramic membrane filter element, supporting frame, the supporting frame includes upper flange, lower supporting plate and the connecting piece of upper flange and lower supporting plate connection fixed, the honeycomb ceramic membrane filter element is placed in supporting frame inside, is supported on lower supporting plate lower part, the conical fairing is fixed in the upper portion of upper flange, respectively with filter element and frame geometric center coincides. Relative to prior art, the utility model not only makes honeycomb ceramic membrane filter element fixed installation on filtering equipment possible, and more convenient. This installation mode, similar to filter bag, filter cartridge and so on filter element, can be inserted through filter hole plate and hang on filter mounting hole plate.