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31results about How to "Improve water production capacity" patented technology

Rotary type ceramic water purifier

The invention discloses a rotary type ceramic water purifier which comprises a shell equipped with a water inlet, a water yielding port and a washing port, a ceramic filtering assembly arranged in the shell and a rotation control and execution mechanism arranged outside the shell, wherein the ceramic filtering assembly is fixed in the shell through a central pipe, and a corrugated ceramic filter disc of the ceramic filtering assembly forms a water inlet area with the shell; the ceramic filter disc is fixed on the central pipe, and one end of the center of the ceramic filter disc is communicated to the upper end of the shell and connected with a motor of the rotation control and execution mechanism, while the other end is connected with a base of the shell; a space formed by the base and the central pipe is a water yielding area; the water inlet port is provided with a flow sensing switch; and the flow sensing switch and the motor form the rotation control and execution mechanism. The rotary type ceramic water purifier increases the surface area of the ceramic filter disc and achieves the purposes of increasing the flow rate and improving the intensity. Meanwhile, during running, the ceramic filter disc rotates under the drive of the motor to realize the automatic removal and separation of impurities and take the effects of filter element self-cleaning and long action and flow rate stabilizing.
Owner:余姚市天沁净水器材有限公司

High-efficiency environment-friendly desalted water production method

The invention discloses a high-efficiency environment-friendly desalted water production method. According to the method, a raw water pool, a high-efficiency double-chamber cation bed, a decarbonization device, a high-efficiency double-chamber anion bed and a desalted water tank are sequentially connected by pipelines, wherein a high-efficiency fiber filter is arranged on a connecting pipeline between the raw water pool and the high-efficiency double-chamber cation bed, an intermediate water tank is arranged at the lower part of the decarbonization device, a water outlet of the intermediate water tank is connected with a water inlet of the bottom of the high-efficiency double-chamber anion bed, a water outlet at the top of the high-efficiency double-chamber cation bed is connected with an acid regeneration system, a water outlet at the top of the high-efficiency double-chamber anion bed is connected with an alkali regeneration system, and the waste liquor in the high-efficiency double-chamber cation bed, the high-efficiency double-chamber anion bed is connected to a neutralizing water tank through a pipeline, the desalted water in the desalted water tank is delivered outside to users, the water outlet of the desalted water tank is respectively connected with the acid regeneration system and the alkali regeneration system by a pipeline. According to the technology, the high-efficiency fiber filter, the high-efficiency double-chamber cation bed and the high-efficiency double-chamber anion bed are adopted, and novel fiber packing is used, so that the internal water supplementing mode, the resin ratio and the resin filling and regeneration mode of the double-chamber bed equipment are improved.
Owner:浙江安耐杰科技股份有限公司

Membrane distilled water treatment system and method which are combined with solar concentrating photovoltaic photo-thermal technology

The invention provides a membrane distilled water treatment system and method which are combined with a solar concentrating photovoltaic photo-thermal technology. The membrane distilled water treatment system comprises a solar concentrating photovoltaic photo-thermal system, a membrane distilled water treatment system body, a thermal storage and power storage system and a heat exchange system, thesolar concentrating photovoltaic photo-thermal system and the membrane distilled water treatment system body are organically combined through the two-stage heat exchange system, a two-stage heating device is designed to achieve the efficient and reasonable heat and power output of the concentrating photovoltaic photo-thermal system, and the efficient storage of solar energy is achieved through atwo-stage energy storage system. The system can still run normally at night by utilizing the stored thermoelectric power to achieve the purpose of maximally utilizing the solar energy. The membrane distilled water treatment system and method which are combined with the solar concentrating photovoltaic photo-thermal technology have the advantages that the comprehensive utilization rate of the solarenergy is higher, the utilization rate of the raw water is higher, more fresh water is obtained, the efficiency is high, the cost is low, and the application prospects are wide.
Owner:XI AN JIAOTONG UNIV

Ceramic film pretreatment method in desalination of sea water

InactiveCN1736905AImprove pretreatment effluent qualityReduce membrane pore foulingGeneral water supply conservationSeawater treatmentWater desalinationPretreatment method
The invention relates to sea water desalination method particular to ceramics ultrafiltration membrane pretreatment, which is characterized in that compressing sea water to 0.1-0.8MPa to enter the said membrane filter unit, retentioning the residue on inlet side, and the pretreatment water accords to require of reverse osmosis system. This method realizes the precise filter, reduces the treatment load, and can replace existing technique.
Owner:JIANGSU JIUWU HITECH

Membrane treatment process device and processing method thereof

The invention discloses a membrane treatment process device and a processing method thereof. The device comprises a low-energy-consumption micro-nano bubbling water generating device, a water inlet pipe, a bottom valve, a raw water pool, a one-way valve, an ultrafiltration water inlet pipe and an ultrafiltration membrane module. The device has the advantages that the adopted low-energy-consumption micro-nano bubbling water generating device substitutes a membrane process water inlet centrifugal pump process, so that membrane water inlet is not merely water but is micro-nano bubbling water containing a great number of micro-nano bubbles, a great number of micro-nano bubbles exist in the bubbling water, scaling substances cannot adhere easily, original scaling substances are even gradually peeled by the micro-nano bubbles, chemical agents such as antisludging agents do not need to be added, back-flushing is not needed, the service life of a membrane is greatly prolonged, water producing capability is enhanced, air inflow amount is adjustable, the vapor-liquid ratio can be adjusted to 20-100%, by means of the one-way valve, the bubbling water cannot backflow from the ultrafiltration membrane module, it is guaranteed that the water pressure in the ultrafiltration membrane module is stable, and the filtering effect of the ultrafiltration membrane module is guaranteed.
Owner:BEIJING SHUIRUN JINGHUA ENVIRONMENTAL PROTECTION TECH DEV CO LTD

Horizontal MVC evaporator

The invention relates to a horizontal MVC evaporator. The horizontal MVC evaporator comprises a cylinder body, a condenser and a raw water inlet, wherein a first-level evaporation chamber, a second-level evaporation chamber and a third-level evaporation chamber are arranged in the cylinder body and are connected in series side by side and are respectively provided with multiple rows of horizontally arranged evaporation pipes. According to the horizontal MVC evaporator, by virtue of a horizontal pipe falling film evaporator, a system is only operated by virtue of an electrically driven vapor compressor, and except the vapor compressor, operation parts of the MVC evaporator are extremely few, so that the operation is simple, the operation energy consumption is low, and high-purity deionized water can be produced with low cost; the horizontal MVC evaporator can be applied to industries of factories, power stations, oil fields and the like which need to consume a large amount of high-purity deionized water; by virtue of the process, a stable, reliable and long-term boiler feed water source can be provided.
Owner:新疆宝莫环境工程有限公司

Fine desalination duplicate bed

The invention discloses a fine desalination duplicate bed which can solve the problem of cross contamination in the regeneration of a mixed bed. The duplicate bed comprises a cation bed and an anion bed, and the water outlet pipe of the cation bed is communicated with the water inlet pipe of the anion bed. The barrel body of the cation bed is internally provided with a water inlet device, a first strong acid resin layer, a perforated plate hydrophobic device, a polystyrene-divinybenzene copolymer packing layer, a second strong acid resin layer and a drain device in sequence from top to bottom, and the top of the barrel body is provided with an exhaust device. The barrel body of the anion bed is internally provided with a water inlet device, a first strong base resin layer, a perforated plate hydrophobic device, a polystyrene-divinybenzene copolymer packing layer, a second strong base resin layer and a drain device in sequence from top to down, and the top of the barrel body is provided with an exhaust device. The water after the pre-desalination enters from the water inlet of the cation bed, and then enters the anion bed after exchanging ions with the strong acid resin to perform the ion exchange with the strong base resin, thereby achieving the purpose of fine desalination.
Owner:芮侨生

Pretreatment method of ceramics membrane of reverse osmosis for desalting seawater

A ceramic membrane pretreating method for the seawater to be desalinated by reverse osmosis features that after the seawater is pressurized to 0.05-0.8 MPa, it is forced to flow through a ceramic membrane filter unit. It can greatly decrease the load of reverse osmosis process and increase the quality and output of fresh water.
Owner:JIANGSU JIUWU HITECH

No-rinse pipe type membrane assembly for water treatment

The invention provides a no-rinse pipe type membrane assembly for water treatment and relates to a no-rinse pipe type membrane assembly for water treatment. The invention aims to solve the problems that the existing inlet no-rinse DF membrane has large diameter and thick wall, the membrane prepared from raw materials with unit mass has small filtering area, low membrane silk filling density, low membrane porosity and high operation pressure, and the energy consumption is increased. The no-rinse pipe type membrane assembly for water treatment consists of a sealing head, a membrane pipe and a metal hoop; the sealing head consists of a water flow port, a sealing head screw cap and a sealing ring; and the membrane pipe consists of a plurality of core pipes, a sealing head screw cylinder, a clean water port, a membrane shell cylinder and pipe type membrane silk. The DF membrane assembly at the inlet can be replaced, and application in the fields of waste water treatment and recycling as well as material separation and concentration instead of the traditional settling pool or filtering pool.
Owner:HEILONGJIANG UNIV

RO (reverse osmosis) water purifier without pressure tank

The invention discloses an RO (reverse osmosis) water purifier without a pressure tank. The RO water purifier without the pressure tank comprises an RO water producing module, wherein a water inlet, a pure water outlet and a wastewater outlet are formed in the RO water producing module. The RO water purifier is characterized by further comprising a water storage tank, a water shortage sensor and a pure water supply pipeline, a water pump is arranged on the pure water supply pipeline which is communicated with the water storage tank, and the water shortage sensor is arranged on the water storage tank or the pure water supply pipeline; the pure water outlet is communicated with the water storage tank, or the pure water outlet is connected to the pure water supply pipeline between the water pump and the water storage tank; the pure water supply pipeline is used for supplying water to users. The RO water purifier has the advantages of simple and reasonable structure, high water supply pressure, large water supply amount and the like.
Owner:GUANGDONG BILI DRINKING WATER EQUIPMENT CO LTD

Gas-water backwashing rapid filter tank based on modification of siphon filter tank

The invention relates to a gas-water backwashing rapid filter tank based on modification of a siphon filter tank. A pneumatic pull plate valve is used and an air impact system is additionally arranged; a siphon filter tank only having a water flushing mode is modified into a gas-water combined backwashing efficient intensive filter tank. The filter tank comprises a water inlet pull plate valve arranged in a water distribution channel, a water outlet / water flushing pull plate valve arranged on a transverse partition plate of a clear water channel, a drainage pull plate valve arranged on the outer side tank wall of the filter tank, and an overflow pull plate valve arranged on an overflow weir wall at the tail end of the clear water channel of the filter tank, a flushing water head is formedthrough coordination and cooperation between the pneumatic pull plate valves to perform filter tank water flushing operation without a back flushing pump, so that process equipment is simplified. Herein, by adding the air flushing system, air-water combined backwashing of the filter is realized, and the operation efficiency of the traditional siphon filter is improved, the operation effect of thefilter tank can be remarkably improved, the operation period of the filter tank is prolonged, the operation cost is reduced, and certain popularization and reference values are achieved for siphon filter tank transformation of medium and small water plants.
Owner:深圳市深水龙岗水务集团有限公司

Solar distillation unit and distillation method

The invention discloses a solar distillation unit and a distillation method. The solar distillation unit comprises a water drawing cavity, an evaporation and condensation cavity and a solute-containing water cavity which are sequentially arranged from left to right. The upper ends of the evaporation and condensation cavity and the solute-containing water cavity are connected with the bottom of a sunlight heat absorption device. Hydrophilic material layers which are communicated with each other are arranged between the upper end of the evaporation and condensation cavity and the bottom of the sunlight heat absorption device and in the solute-containing water cavity. A cavity body of the evaporation and condensation cavity is filled with gas of which the molar mass is smaller than that of water molecules. A water drawing device is arranged in the water drawing cavity, the left ends of the hydrophilic material layers are communicated with the water drawing device, and a through hole formed in the left side wall of the water drawing cavity is connected with the output right end of a planar fluorescent condenser. The lower end of the evaporation and condensation cavity is connected witha pipeline for outputting condensate. The water drawing device in the distillation unit is optimized, and efficient distillation is achieved; and large-scale production is facilitated.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Circulating clarification equipment

The invention discloses circulating clarification equipment. The equipment comprises a cylindrical clarifying barrel, wherein a flow guide barrel, wherein a flow dividing barrel, a flocculation barrel and a flow pushing barrel are coaxially arranged in the clarifying barrel, and the diameters of the flow guide barrel, the flow dividing barrel, the flocculation barrel and the flow pushing barrel are sleeved from small to large; wherein the shunting cylinder is arranged above the guide cylinder, and both the shunting cylinder and the guide cylinder are arranged in the flocculation barrel; the lower part of the flocculation barrel is sealed by an arc-shaped bottom, and windows communicated with the plug flow barrel are uniformly formed in the circular side wall of the upper part in a surrounding manner; stirring blades are arranged in the guide cylinder and are fixed on the inner side wall of the flocculation barrel through a plurality of connecting plates on the outer side wall. According to the circulating clarification equipment, a coaxial five-cylinder layout structure is adopted, the annular water passing channel can be formed on the periphery of each cylinder. Compared with a pipeline or a single-side water passing structure of a rectangular pool in the prior art, the annular water passing channel has the largest water passing sectional area under the same volume and highest water production capacity per unit volume, and the energy consumption per unit water yield can be controlled to be lower.
Owner:温华环境科技(北京)有限公司

Horizontal flow precipitation water collecting device

The invention relates to a horizontal flow precipitation water collecting device, which comprises a device body and a water outlet ditch, wherein the device body is a cuboid structure, the water outlet ditch is arranged on the outer wall of the device body, a rectifying wall and a water collecting assembly are arranged in the device body, the water collecting assembly comprises a perforated watercollecting pipe, a water outlet pipe and a water outlet control gate, the perforated water collecting pipe is connected to one end of the water outlet pipe, the other end of the water outlet pipe extends into the water outlet ditch, the water outlet control gate is connected to the end, extending into the water outlet ditch, of the water outlet pipe through a pipeline, and a gap is formed in the connecting position of the pipeline and the water outlet pipe. Compared with the form of the water collecting groove, the device of the invention substantially reduces the water collecting area, so that the proportion of the effective precipitation area of the precipitation pond is large, and the load rate of the existing horizontal flow precipitation is obviously improved so as to improve the water production capacity of the system.
Owner:天津市华博水务有限公司

Device for cleaning ion exchange resin poisoned by iron and cleaning method

An apparatus for washing the iron-poisoned ion exchange resin is composed of ion exchanger, acid tank, chemical dissolving bath, and circulating pipeline with cut-off valve and acid-resistant pump. Its washing process includes preparing chemical solution with proper concentration, washing and rewashing.
Owner:TIANJIN PIPE CORP

Moisturizing and soothing spray

The invention belongs to the technical field of cosmetics, and discloses a moisturizing and soothing spray. The moisturizing and soothing spray comprises a group A preparation water, p-hydroxyacetophenone, a group B preparation 1, 2-pentanediol, a glycerol composition and a butanediol composition. A preparation method of the preparation comprises the following steps: S1, adding the group A preparation into a water phase pot, performing stirring and heating to 90 DEG C until no particles are dissolved, and performing sterilizing at constant temperature for 10 minutes; S2, after sterilization of the group A preparation is completed, starting the cooling; S3, performing cooling to 45 DEG C, adding the preparation B, and uniformly performing stirring; S4, performing cooling to 38 DEG C, performing filtering with 400-mesh filter cloth, and performing discharging. The moisturizing and soothing spray is used for after-sun first aid, thermal spring water and glacier water adopted in the formula have the effects of enhancing skin tolerance and repairing skin barrier, and component saccharide isomeride is very similar to the composition of NMF in human skin and can be combined with free amino to form a layer of water-locking film, TEWL is reduced, and water production of the skin is improved; The moisturizing and soothing spray has the effects of quickly and deeply combining and moisturizing, promoting the generation of NMF, improving the barrier function of an epidermis barrier and relieving the symptoms such as dryness, scurf and pruritus.
Owner:东晟源研究院(广州)有限公司

System and method for detecting service life of filter element of water purifier

The invention provides a system and a method for detecting the service life of a filter element of a water purifier, and relates to the technical field of water purifiers. The system for detecting the service life of the filter element of the water purifier comprises a low-pressure switch, a filter membrane device, a booster pump, a reverse osmosis (RO) membrane device, a flow meter, a high-pressure switch and a pressure barrel which are sequentially connected through pipelines. According to the invention, the maximum water production capacity of the filter element can be obtained by calculating the water production flow of the filter element at high frequency, and the attenuation of the water production capacity can be accurately calculated by comparing the maximum water production capacity every day with the water production capacity during delivery, so that the accurate service life of the filter element is obtained, and the service life of the filter element is prolonged by utilizing the accurate service life of the filter element. The filter element can be more accurately replaced for a customer, the service life of the filter element is not wasted, and the situation that use of the customer is affected due to blockage of the filter element is avoided, so that resources are utilized to the maximum extent, waste is avoided, and normal use of the user is not affected.
Owner:SHANGHAI PURE DEAU ENVIRONMENT PROTECTION TECH CO LTD

A primary pressure self-regulating gas water heater and its control method

The invention discloses a gas water heater with a primary pressure self-adjustment function and a control method thereof. The gas water heater comprises a combustion fire grate, a fire grate adjusting valve, a gas proportional valve, a main gas switch valve, a fan, a pressure sensor, a controller and a gas pipeline. One end of the gas pipeline is connected with the combustion fire grate, and the other end of the gas pipeline communicates with a gas inlet. The fire grate adjusting valve, the gas proportional valve and the main gas switch valve are sequentially arranged on the gas pipeline from top to bottom. The pressure sensor is arranged at the position, between the main gas switch valve and the gas inlet, of the gas pipeline. The controller is electrically connected with the control end of the fire grate adjusting valve, the control end of the gas proportional valve, the control end of the main gas switch valve, the control end of the fan and the control end of the pressure sensor. The water heater can autonomously sense the change condition of gas pressure and make a response fast according to the pressure change of gas, it is guaranteed that a user can use the water heater at high air pressure and low air pressure, and the adaptability of the gas water heater is improved to the maximum extent.
Owner:成都前锋电子有限责任公司

A two-effect plate distillation desalination device

The invention relates to a two-effect plate type distillation and desalination device. The device comprises a housing, wherein an end capped one-effect evaporator assembly and an end capped condenser assembly are arranged at the left and right ends of the housing through connecting flanges, respectively; a two-effect evaporator assembly is arranged in the housing; a horizontal baffle is arranged in a space between the one-effect evaporator assembly and the two-effect evaporator assembly, and another horizontal baffle is arranged in a space between the two-effect evaporator assembly and the condenser assembly, and the spaces are divided into two parts, namely, an upper part and a lower part, by the two horizontal baffles; effect-space vertical baffles are arranged on the two horizontal baffles, and effect spaces are separated by the effect-space vertical baffles; vapor liquid separators are arranged on the effect-space horizontal baffles, and communication of effect spaces is archived; plate sheet groups are arranged in the one-effect evaporator assembly, the two-effect evaporator assembly and the condenser assembly; raw material water falling film evaporation and vapor condensation are achieved in the plate sheet groups through opening change of a plate sheet sealing strip group. Plate type falling film distillation desalination is achieved; latent heat of vapor is subjected to multi-effect recycling; and the device provided by the invention has important significance for improving the distillation and desalination technology level and equipment capacity.
Owner:TIANJIN SEA WATER DESALINATION & COMPLEX UTILIZATION INST STATE OCEANOGRAPHI

A sewage biological treatment system and method

The invention provides a sewage biological treatment system and method integrating biological filtering, shortcut nitrification, anaerobic ammonia oxidation and membrane biological reaction technologies. The sewage biological treatment system comprises a sludge reduction device, an efficient ammoxidation device and a membrane biological reaction device in sequential connection, wherein an intercepting net, a water distributor and a temperature controller are sequentially arranged inside the sludge reduction device; a sludge intercepting region used for intercepting sludge is arranged between the intercepting net and the water distributor; an aeration hose is arranged in the sludge intercepting region; an aeration pipe and an aerobic carrier region used for placing an aerobic carrier are arranged inside the efficient ammoxidation device; a membrane assembly and an anaerobic biological filtering region used for placing a filtering carrier are sequentially arranged inside the membrane biological reaction device. Through the biological immobilization, biological filtering and sludge discharging pipeline optimization, the generation and the discharging of the sludge are reduced; the shortcut nitrification, anaerobic ammonia oxidation and membrane biological treatment technologies are integrated; the denitrification efficiency is high; the COD removal capability is high; the hydraulic detention time is short.
Owner:CHINA COAL TECH & ENG GRP HANGZHOU ENVIRONMENTAL PROTECTION INST

Two-stage turbine booster pump

The invention discloses a two-stage turbine booster pump, relates to a booster pump used in the water filtering process, and aims to provide the two-stage turbine booster pump which is high in workingefficiency, labor-saving in operation and good in safety. The two-stage turbine booster pump comprises a pump body, a pump base, a handle and a filtering assembly, wherein two air cylinders are arranged in the pump body; a crankshaft drives the air cylinders to work; the two ends of the crankshaft are connected with a crankshaft gear and an energy recovery turbine; the crankshaft gear is connected with the handle after being transmitted by a gear; the energy recovery turbine can rotate in a turbine bin; the turbine bin separately communicates with a waste water draining connector and a waterdraining port; the water draining port communicates with the inner part of the filtering assembly; a water inlet one-way valve and a water outlet one-way valve are mounted on the pump base; an outletof the water inlet one-way valve and an inlet of the water outlet one-way valve communicate with the inner part of a cylinder barrel; an inlet of the water inlet one-way valve communicates with a water inlet interface in the pump base; an outlet of the water outlet one-way valve communicates with the filtering assembly; a filter element is mounted inside the filtering assembly; and the inner partof the filter element communicates with the water outlet.
Owner:轩维技术(北京)有限公司

Device for cleaning ion exchange resin poisoned by iron and cleaning method

An apparatus for washing the iron-poisoned ion exchange resin is composed of ion exchanger, acid tank, chemical dissolving bath, and circulating pipeline with cut-off valve and acid-resistant pump. Its washing process includes preparing chemical solution with proper concentration, washing and rewashing.
Owner:TIANJIN STEEL PIPE MFG CO LTD

Membrane distilled water treatment system and method combined with solar concentrated photovoltaic photothermal technology

The invention provides a membrane distilled water treatment system and method which are combined with a solar concentrating photovoltaic photo-thermal technology. The membrane distilled water treatment system comprises a solar concentrating photovoltaic photo-thermal system, a membrane distilled water treatment system body, a thermal storage and power storage system and a heat exchange system, thesolar concentrating photovoltaic photo-thermal system and the membrane distilled water treatment system body are organically combined through the two-stage heat exchange system, a two-stage heating device is designed to achieve the efficient and reasonable heat and power output of the concentrating photovoltaic photo-thermal system, and the efficient storage of solar energy is achieved through atwo-stage energy storage system. The system can still run normally at night by utilizing the stored thermoelectric power to achieve the purpose of maximally utilizing the solar energy. The membrane distilled water treatment system and method which are combined with the solar concentrating photovoltaic photo-thermal technology have the advantages that the comprehensive utilization rate of the solarenergy is higher, the utilization rate of the raw water is higher, more fresh water is obtained, the efficiency is high, the cost is low, and the application prospects are wide.
Owner:XI AN JIAOTONG UNIV

Rotary type ceramic water purifier

The invention discloses a rotary type ceramic water purifier which comprises a shell equipped with a water inlet, a water yielding port and a washing port, a ceramic filtering assembly arranged in the shell and a rotation control and execution mechanism arranged outside the shell, wherein the ceramic filtering assembly is fixed in the shell through a central pipe, and a corrugated ceramic filter disc of the ceramic filtering assembly forms a water inlet area with the shell; the ceramic filter disc is fixed on the central pipe, and one end of the center of the ceramic filter disc is communicated to the upper end of the shell and connected with a motor of the rotation control and execution mechanism, while the other end is connected with a base of the shell; a space formed by the base and the central pipe is a water yielding area; the water inlet port is provided with a flow sensing switch; and the flow sensing switch and the motor form the rotation control and execution mechanism. The rotary type ceramic water purifier increases the surface area of the ceramic filter disc and achieves the purposes of increasing the flow rate and improving the intensity. Meanwhile, during running, the ceramic filter disc rotates under the drive of the motor to realize the automatic removal and separation of impurities and take the effects of filter element self-cleaning and long action and flow rate stabilizing.
Owner:余姚市天沁净水器材有限公司

Method for cleaning spiral-wound membrane for water treatment

The invention discloses a spiral-wound membrane cleaning method for water treatment. The spiral-wound membrane cleaning method comprises the following steps: S1, preparing a cleaning solution; s2, heating the cleaning liquid; s3, performing low-flow circulation; s4, performing sectional cleaning, namely performing second-section reverse cleaning on the membrane device, performing first-section reverse cleaning on the membrane device, performing second-section forward cleaning on the membrane device, performing first-section forward cleaning on the membrane device, and observing circulating flow; s5, performing low-pressure flushing, performing valve switching on the first section of the membrane device and the second section of the membrane device, performing flushing by using a low-pressure flushing system, and performing standby application or commissioning after qualification; and S6, discharging the cleaning liquid, namely discharging the effluent of the security filter to a cleaning waste liquid pool, emptying the cleaning liquid in a cleaning water tank and a pipeline to prepare for next cleaning, and when the liquid level in the cleaning waste liquid pool is too high, sending the effluent to other devices for treatment. According to the scheme, a reverse and forward sectional switching cleaning method is adopted, the spiral-wound membrane element water passing channel is cleaned more effectively, and the cleaning effect is improved.
Owner:内蒙古大唐国际克什克腾煤制天然气有限责任公司
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