CN103055701A - Cleanable security filter and its application - Google Patents
Cleanable security filter and its application Download PDFInfo
- Publication number
- CN103055701A CN103055701A CN2011103164620A CN201110316462A CN103055701A CN 103055701 A CN103055701 A CN 103055701A CN 2011103164620 A CN2011103164620 A CN 2011103164620A CN 201110316462 A CN201110316462 A CN 201110316462A CN 103055701 A CN103055701 A CN 103055701A
- Authority
- CN
- China
- Prior art keywords
- water
- filter
- cartridge
- valve
- oral siphon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a security filter that can realize online automatic backwashing and its application. The invention solves the technical problems that currently used filter elements in industry have low filter precision, are easy to cause deep pollution, and cannot achieve long-term use through automatic cleaning. The security filter provided in the invention can mainly be used for a double-membrane system in the field of wastewater treatment by a membrane method, such as the security filtering measures in ultrafiltration and reverse osmosis systems, and also can be applied to circulating water replenishing and other water treatment processes with high requirements for filter precision and effluent water quality. The security filter can be used as an effective pretreatment filter means to reduce the influence of particles in water or water quality change caused by inflow water impact on stable running of follow-up processes, so that the effluent water quality can be improved to meet following water use requirements.
Description
Technical field
The present invention relates to a kind of cartridge filter and application system thereof that can realize on-line automatic backwash, belong to embrane method sewage disposal and reuse technology field.
Background technology
In recent years, along with increasingly sharpening and the continuous reinforcement of law enforcement for environmental protection dynamics of shortage of fresh water problem, the water-saving and emission-reducing correlation technique has obtained further promotion and application, wherein sewage deep reuse technology in the commercial Application of reality---and membrane separation technique has obtained fast-developing under existing technical conditions and has been applied in the various fields.Membrane separation technique has become the current energy, the resources and environment problem of solving in a sense, realizes one of technical foundation of sustainable development.In China, along with the introduction of membrane technology and going deep into of research work, membrane technology begins in chemical wastewater treatment, seawater, brackish water desalination, the field extensive uses such as environmental pollution improvement.
Membrane technology need not undergo phase transition and add auxiliary agent as a kind of physical separating process.Therefore have that processed object active principle loss is little, the operation operation energy consumption is low, the contamination of products degree is little, object choice is high to processing, strong adaptability, be easy to the advantage such as automation.But membrane aperture is generally less than 1 μ m, because its processing accuracy is high, so membrane pollution problem is one of principal element that affects application of membrane.Therefore, for the film system being protected and extending working time, usually in the film system process, to arrange security personnel's filter is installed.
Filter core of security filter commonly used mostly adopts and melts and sprays or foldable filter element in the at present industry, and filter type is grossflow filtration, and pollutant is trapped in the surface of filter core.Along with increasing of surface contaminant, the flux of filter core can decline to a great extent, and the filter core in the filter easily causes the degree of depth to be polluted because the defective of manufacturing technology itself can't realize both surface filtration.When flux drops to a certain degree, being reacted on the cartridge filter is exactly that operating pressure raises, the effluent quality variation, and renew cartridge more just at this moment is so that the rising of operation and maintenance cost.
There is following shortcoming in the filter core of using in the industrial membrane device at present: (1) filter core self preparation technology has defective so that filter core aperture excessive (being generally about 5 μ m), and pore-size distribution is uneven, causes the filter element filtering precision not high; (2) can't realize surface filtration because the filter core manufacturing technical feature determines filter core, easily form the degree of depth and pollute; (3) existing industrial filter core life cycle is shorter, along with the fluctuation of entry water quality, month does not wait in general 2 week to 1, can't use for a long time, and the frequent filter core causes increasing considerably of operating cost and cost of labor.
The problem that exists in actual applications for present filter core of security filter, easily forming the degree of depth such as filter core pollutes, filtering accuracy is not high, be subjected to the problems such as the fluctuation of entry water quality impact is large in the operating process, the cartridge filter that adopts compressed air to carry out backwash is arranged at present, but adopting compressed air to carry out backwash has relatively high expectations to compressed-air actuated pressure on the one hand, pressure is excessive, easily damage filter core, the too small purpose that can't reach backwash of pressure in addition, facts have proved, adopt compressed air to carry out the effect of backwash bad, air is difficult to the impurity that adheres on the filter core is blown away fully.
Therefore, the invention provides a kind of novel cartridge filter that can realize on-line automatic backwash, and its application process is provided.
Summary of the invention
For addressing the above problem, the invention provides a kind of novel cartridge filter and the application process thereof that can realize on-line automatic backwash, this cartridge filter not only can improve the variety of issue that brings because of security personnel's filter core in the existing industrial membrane device, and operation and the replacement cycle that can greatly improve filter core, reduce existing two operating operation and maintenance cost of film device.
Cartridge filter of the present invention comprises that inside is provided with the filter body of a plurality of filter cores, water side and water inlet end at filter body are respectively arranged with outlet valve and enter water valve, also be provided with on the described filter body simultaneously and clean water valve and clean outlet valve, described cleaning enters water valve and cleans water side and the water intake end that outlet valve is separately positioned on filter body;
In addition, described cartridge filter water intake end and water side are provided with pressure sensor.
A plurality of filter cores in the described filter body are centered by the center of filter body cross section, and being centrosymmetric vertically is arranged in the filter body, and filter core length is identical with filter body length;
Describedly enter water valve and be arranged on the oral siphon, described cleaning outlet valve is arranged on and cleans on the outlet pipe, described oral siphon and clean outlet pipe and all be connected on the water inlet end of filter body;
Described outlet valve is arranged on the outlet pipe, and described cleaning enters water valve and is arranged on the cleaning oral siphon, and described outlet pipe and cleaning oral siphon all are connected on the water side of filter body;
Described pressure sensor is separately positioned on oral siphon and the outlet pipe;
Described filter core comprises mandrel and be evenly distributed on the axial hollow fibre filament of core, and the two ends of described mandrel arrange respectively water-locator, and the water distributing pore of described water-locator and the end face of hollow fibre filament join; The two ends of described mandrel, the water-locator outside also arranges respectively the middle end cover that through hole is arranged.
Wherein, described hollow fibre filament utilizes film silk distributor to be divided into some part be evenly distributed to around the mandrel, then with epoxy resin and curing agent according to 1:0.5-1:2.5, the two ends that the mass ratio of preferred 1:1 mixes rear curing hollow fibre filament obtain.
Described water-locator is comprised of the one group of concentric circles that has by the axle center connecting line, and the space between each concentric circles, between concentric circles and the connecting line consists of described water distributing pore.
Concrete, the visible accompanying drawing 2 of described cartridge filter structure, be provided with eight filter cores in the tubular filter body, water side and water inlet end at filter body are respectively arranged with outlet valve and enter water valve, also be provided with on the described filter body simultaneously and clean water valve and clean outlet valve, described cleaning enters water valve and cleans water side and the water intake end that outlet valve is separately positioned on filter body; In addition, described cartridge filter water intake end and water side are provided with pressure sensor.
Described water inlet end also comprises branch's inlet channel of water inlet being introduced each filter core, and described branch inlet channel is communicated with respectively with inlet channel;
Concrete, shown in the visible accompanying drawing 1 of the structure of the filter core of described cartridge filter, described filter core comprises mandrel and is evenly distributed on vertically the axial hollow fibre filament of core, and the two ends of described mandrel arrange respectively water-locator, and the water distributing pore of described water-locator and the end face of hollow fibre filament join; The two ends of described mandrel, the water-locator outside also arranges respectively end cover;
Described water-locator is comprised of the one group of concentric circles that has by the axle center connecting line, and the space between each concentric circles, between concentric circles and the connecting line consists of described water distributing pore.
Wherein, described material for core can be selected one or more in following: polysulfones, polyimides, PEI, Kynoar class, polytetrafluoroethylene (PTFE), TPO, polyvinyl chloride, or the blend film of aforementioned some composite materials;
Wherein, described polysulfones comprises: bisphenol-a polysulfone, polyether sulfone, phenolic polyether sulphone, phenolphthalein type polyether-ketone.
Described TPO mainly comprises polyethylene, polypropylene, hydrophilic modifying polyethylene, hydrophilic modifying polypropylene etc.; Preferably carry out the organic film material of hydrophilic modifying, such as polyethylene, polypropylene, polyvinyl chloride, polyether sulfone, Kynoar, the polytetrafluoroethylene (PTFE) of hydrophilic modifying.
The pore diameter range of described filter core hollow fibre filament is 0.5-5 μ m, and preferred pore diameter range is 1-2 μ m.
The flux selection foundation of described filter core is the pure water flux under the 0.1MPa, and magnitude range is 500-2000L/m
2H, wherein preferred filter core flux is 800-1500L/m
2H.
Epoxy resin and the curing agent that solidifies under the normal temperature condition adopted in the preparation of described filter core, and the proportion of the two is 1:0.5-1:2.5, and wherein preferred epoxy resin and curing agent ratio are 1:1.
Water inlet in the described filter core and product water-stop mode all adopt the sealing of O type circle.
The present invention also provides the safety filter system that adopts above-mentioned cartridge filter, to solve the problem of mentioning in the background technology, briefly, the present invention selects pressure controlled automatic control program, for the above-mentioned cartridge filter of the present invention, increase online backwashing system and operating pressure is judged to realize the automatic back-washing program, can overcome existing security personnel and filter the problem that exists.
Safety filter system of the present invention, by forming (see figure 3) with lower member: two groups of cartridge filter (E-1, E-2), the water side of each cartridge filter connects with pipeline mutually, and this pipeline is connected with total outlet pipe simultaneously, sets out respectively water valve (V-2A and V-2B) and delivery port pressure sensor (P-2A and P-2B) on the pipeline that described and total outlet pipe is connected; The pipeline that connects simultaneously the water side is communicated with respectively with the cleaning oral siphon, arranges respectively on this path and cleans water valve (V-3A and V-3B);
The water intake end of described two groups of cartridge filters (E-1, E-2) is connected with pipeline with total oral siphon respectively, sets into respectively water valve (V-1A and V-1B) and water inlet pressure sensor (P-1A and P-1B) on the pipeline that described and total oral siphon is connected; Simultaneously, the water intake end of described two groups of cartridge filters (E-1, E-2) is connected with total oral siphon respectively with another path, arranges respectively on this path to clean outlet valve (V-4A and V-4B).
Adopt safety filter system of the present invention, set delivery port, the water inlet pressure differential that begins to carry out backwash and the delivery port that stops backwash, water inlet pressure differential according to different quality.
In general, the delivery port, water inlet pressure differential that begins to carry out backwash is for more than or equal to 0.1MPa; The delivery port, the water inlet pressure differential that stop backwash are less than or equal to 0.02MPa;
During normal operation, cleaning water valve closes with the cleaning outlet valve, enter water valve and outlet valve is opened, when pressure sensor monitoring reached setting value (being generally 0.1MPa) to Inlet and outlet water pressure reduction, program was automatically carried out valve and is switched, and closes into water valve and outlet valve, open and clean water valve and clean outlet valve, begin to carry out on-line auto-cleaning, generally clean the water yield and be normal water yield 1.5 ~ 2 times, scavenging period is generally 3 ~ 5min.Pressure reduction generally can return to below the 0.02MPa after cleaning.Can continue operation after the EP (end of program) to be cleaned.
Application technology scheme optimization of the present invention be to adopt the two groups of filters that can realize on-line auto-cleaning to carry out commercial Application, mainly by the mode of pressure reduction control the ensure public security operation of filter and the switching of cleaning, the performance recovery of the cartridge filter after the cleaning is mainly judged by the pressure reduction of running status.
The essential distinction of the present invention and prior art is that mainly the cartridge filter employing pressure judgement scavenging period of on-line automatic backwash prevents that filter core of security filter from moving the degree of depth pollution that causes owing to long-time continuous.Filter core flux recovery, pressure reduction reduce after cleaning, and can effectively prolong the replacement cycle of filter core, have reduced the operation and maintenance cost.
The invention has the beneficial effects as follows:
The cartridge filter of on-line automatic backwash adopts pressure to judge scavenging period, prevents filter core of security filter because the degree of depth that the long-time continuous operation causes is polluted.Filter core flux recovery, pressure reduction reduce after cleaning, and the life cycle that can effectively prolong filter core has reduced the operation and maintenance cost.
Description of drawings
Fig. 1 is the filter cartridge construction schematic diagram; Wherein, 6-hollow fibre filament; The 7-water-locator; The 8-end cover; The 9-water distributing pore.
Fig. 2 is novel cartridge filter agent structure; Wherein, 1-pressure sensor; 2-enters water valve; The 3-outlet valve; 4-cleans into water valve; 5-cleans outlet valve.
Fig. 3 is the application schematic diagram of cartridge filter in commercial plant.Wherein, E-1, E-2 is respectively cartridge filter; P-1A, P-1B are respectively the water inlet pressure sensor; P-2A, P-2B are respectively the delivery port pressure sensor; V-1A, V-1B are respectively into water valve; V-2A, V-2B is respectively outlet valve; V-3A, V-3B are respectively and clean water valve; V-4A, V-4B are respectively the cleaning outlet valve.
The specific embodiment
Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
Novel security personnel's filter element for filtration in the present embodiment adopts the PTFE hollow-fibre membrane as main material, the PTFE hollow fiber microfiltration membrane of selecting is that outer surface is relatively fine and close, the average pore size of microfiltration membranes is 1 μ m, pore size distribution range is 0.5-1.5 μ m, the length of security personnel's filter core is 1m, and the effective film area of each assembly is 5m
2, the treating capacity of single filter core is 3-5t/h, adopting the ratio of normal temperature epoxy resin and curing agent is to use after 1:1.5 is cured end-blocking.Filter core and cartridge filter adopt the mode of O type circle sealing to isolate will intake and produce water, backwash water and rinse water.Filter cartridge construction and cartridge filter structure are seen respectively Fig. 1 and 2.
Adopt safety filter system (see figure 3) of the present invention:
Two groups of cartridge filter E-1, E-2, each cartridge filter E-1, the water side of E-2 connects with pipeline mutually, and each pipeline is connected with total outlet pipe simultaneously, sets out respectively water valve (V-2A and V-2B) and delivery port pressure sensor (P-2A and P-2B) on the pipeline that described and total outlet pipe is connected; The pipeline that connects simultaneously the water side is communicated with respectively with the cleaning oral siphon, arranges respectively on this path and cleans water valve (V-3A and V-3B);
Described two groups of cartridge filter E-1, the water intake end of E-2 is connected with pipeline with total oral siphon respectively, sets into respectively water valve (V-1A and V-1B) and water inlet pressure sensor (P-1A and P-1B) on the pipeline that described and total oral siphon is connected; Simultaneously, described two groups of cartridge filter E-1, the water intake end of E-2 is connected with total oral siphon respectively with another path, arranges respectively on this path to clean outlet valve (V-4A and V-4B).
Process rear water outlet as entry with certain petrochemical plant production waste.A, B two cover cartridge filters use simultaneously during driving, open V-1A, V-1B, and V-2A, V-2B close V-3A, V-3B, V-4A, V-4B.Through 11 days operation, the pressure reduction between P-2A and the P-1A reached setting value 0.1MPa.At this moment, close V-1A, V-2A, open V-3A, V-4A, produce water with the ultrafiltration in the follow-up pair of membrane process and carry out backwash, scavenging period 3min.Close V-3A, V-4A after the cleaning, open V-1A, V-2A, this moment, cartridge filter A recovered normal operation, and gateway pressure sensor pressure reduction returns to 0.02MPa.After 13 days, the pressure reduction between P-2B and the P-1B reaches setting value 0.1MPa.At this moment, close V-1B, V-2B, open V-3B, V-4B, produce water with the ultrafiltration in the follow-up pair of membrane process and carry out backwash, scavenging period 3min.Close V-3B, V-4B after the cleaning, open V-1B, V-2B, this moment, cartridge filter B recovered normal operation, and gateway pressure sensor pressure reduction returns to 0.02MPa.Operation is after 102 days continuously, and pressure reduction surpasses 0.08MPa behind the filter element cleaning, shuts down more renew cartridge this moment.
Embodiment 2
Novel security personnel's filter element for filtration in the present embodiment adopts the chief component of the PVC hollow fiber membrane cartridge of hydrophilic modifying, the hydrophily PVC hollow fiber microfiltration membrane of selecting is that outer surface is relatively fine and close, the average pore size of microfiltration membranes is 0.5 μ m, pore size distribution range is 0.1-1.0 μ m, the length of security personnel's filter core is 1m, and the effective film area of each assembly is 8m
2, the treating capacity of single filter core is 4-6t/h, adopting the ratio of normal temperature epoxy resin and curing agent is to use after 1:1 is cured end-blocking.Filter core and cartridge filter adopt the mode of O type circle sealing to isolate will intake and produce water, backwash water and rinse water.Filter cartridge construction and cartridge filter structure are seen respectively Fig. 1 and 2.
Adopt safety filter system (see figure 3) of the present invention:
Manage rear outer draining as entry with certain municipal wastewater factory and office.A, B two cover cartridge filters use simultaneously during driving, open into water valve V-1A, V-1B, and V-2A, V-2B close V-3A, V-3B, V-4A, V-4B.Through 8 days operation, the pressure reduction between P-2B and the P-1B reached setting value 0.15MPa.At this moment, close V-1B, V-2B, open V-3B, V-4B, produce water with the ultrafiltration in the follow-up pair of membrane process and carry out backwash, scavenging period 5min.Close V-3B, V-4B after the cleaning, open V-1B, V-2B, this moment, cartridge filter B recovered normal operation, and gateway pressure sensor pressure reduction returns to 0.02MPa.After 9 days, the pressure reduction between P-2A and the P-1A reaches setting value 0.15MPa.At this moment, close V-1A, V-2A, open V-3A, V-4A, produce water with the ultrafiltration in the follow-up pair of membrane process and carry out backwash, scavenging period 5min.Close V-3A, V-4A after the cleaning, open V-1A, V-2A, this moment, cartridge filter A recovered normal operation, and gateway pressure sensor pressure reduction returns to 0.02MPa.Operation is after 162 days continuously, and pressure reduction surpasses 0.13MPa behind the filter element cleaning, shuts down more renew cartridge this moment.
Claims (10)
1. cartridge filter, comprise that inside is provided with the filter body of a plurality of filter cores, water side and water inlet end at filter body are respectively arranged with outlet valve and enter water valve, it is characterized in that, also arrange on the described filter body and clean water valve and clean outlet valve, described cleaning enters water valve and cleans water side and the water intake end that outlet valve is separately positioned on filter body; Simultaneously, described cartridge filter water intake end and water side are equipped with pressure sensor.
2. cartridge filter as claimed in claim 1 is characterized in that, a plurality of filter cores in the described filter body are symmetry and vertically are arranged in the filter body centered by the filter body cross-section center, and filter core length is identical with filter body length; Describedly enter water valve and be located on the oral siphon, described cleaning outlet valve is arranged on and cleans on the outlet pipe, described oral siphon and clean outlet pipe and all be connected on the water inlet end of filter body; Described outlet valve is arranged on the outlet pipe, and described cleaning enters water valve and is arranged on the cleaning oral siphon, and described outlet pipe and cleaning oral siphon all are connected on the water side of filter body.
3. cartridge filter as claimed in claim 1 or 2 is characterized in that, described pressure sensor is located at respectively on oral siphon and the outlet pipe.
4. cartridge filter as claimed in claim 2, it is characterized in that, described filter core comprises mandrel and is evenly distributed on vertically the axial hollow fibre filament of core, and the two ends of described mandrel arrange respectively water-locator, and the water distributing pore of described water-locator and the end face of hollow fibre filament join; The two ends of described mandrel, the water-locator outside also arranges respectively the middle end cover that through hole is arranged.
5. cartridge filter as claimed in claim 4 is characterized in that, described water-locator is comprised of the one group of concentric circles that has by the axle center connecting line, and the space between each concentric circles, between concentric circles and the connecting line consists of described water distributing pore.
6. cartridge filter as claimed in claim 4, it is characterized in that, described material for core can be selected one or more in following: polysulfones, polyimides, PEI, Kynoar class, the blend film of polytetrafluoroethylene (PTFE), TPO, polyvinyl chloride or aforementioned part material; Wherein, described polysulfones comprises: bisphenol-a polysulfone, polyether sulfone, phenolic polyether sulphone, phenolphthalein type polyether-ketone; Described TPO comprises polyethylene, polypropylene, hydrophilic modifying polyethylene, hydrophilic modifying polypropylene; The following material of preferred hydrophilic modifying: polyethylene, polypropylene, polyvinyl chloride, polyether sulfone, Kynoar, polytetrafluoroethylene (PTFE).
7. cartridge filter as claimed in claim 1 is characterized in that, the pore diameter range of described hollow fibre filament filter core is 0.5-5 μ m, and preferred pore diameter range is 1-2 μ m.
8. cartridge filter as claimed in claim 1 is characterized in that, it is 500-2000L/m for the pure water flux scope under the 0.1MPa that described filter core flux is selected foundation
2H, wherein preferred filter core flux is 800-1500L/m
2H.
9. cartridge filter as claimed in claim 1 is characterized in that, epoxy resin and the curing agent that solidifies under the normal temperature condition adopted in the preparation of described filter core, and the proportion of the two is 1:0.5-1:2.5, and wherein preferred epoxy resin and curing agent ratio are 1:1; Water inlet in the described filter core and product water-stop mode all adopt the sealing of O type circle.
10. adopt the safety filter system such as the arbitrary described cartridge filter of claim 1-9, it is characterized in that, by forming with lower member:
Two groups of cartridge filters, the water side of each cartridge filter connects with pipeline, and this pipeline is connected with total outlet pipe simultaneously, on the pipeline that described and total outlet pipe is connected an outlet valve and a discharge pressure sensor is set respectively; The pipeline that connects simultaneously the water side is communicated with respectively with the cleaning oral siphon, arranges respectively on this path and cleans water valve;
The water intake end of described two groups of cartridge filters is connected with pipeline with total oral siphon respectively, arranges respectively one on the pipeline that described and total oral siphon is connected and enters water valve and a water entry pressure sensor; Simultaneously, the water intake end of described two groups of cartridge filters is connected with total oral siphon respectively with another path, and the cleaning outlet valve is set respectively on this path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110316462.0A CN103055701B (en) | 2011-10-18 | 2011-10-18 | Cleanable security filter and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110316462.0A CN103055701B (en) | 2011-10-18 | 2011-10-18 | Cleanable security filter and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103055701A true CN103055701A (en) | 2013-04-24 |
| CN103055701B CN103055701B (en) | 2015-05-13 |
Family
ID=48098772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110316462.0A Active CN103055701B (en) | 2011-10-18 | 2011-10-18 | Cleanable security filter and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103055701B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103224307A (en) * | 2013-04-28 | 2013-07-31 | 浙江晶泉水处理设备有限公司 | Continuous electro-adsorption process-based sea water desalination apparatus |
| CN108421296A (en) * | 2018-02-13 | 2018-08-21 | 佛山市澳霆环境设备制造有限公司 | A kind of filter auto-cleaning structure thereof |
| CN110049786A (en) * | 2016-12-09 | 2019-07-23 | 懿华水处理技术有限责任公司 | The control system that mixing and energy for optimizing hybrid system use |
| CN112587989A (en) * | 2020-09-01 | 2021-04-02 | 中国科学院上海应用物理研究所 | Filter element device, filter and application thereof |
| CN112717703A (en) * | 2020-12-10 | 2021-04-30 | 哈尔滨乐普实业有限公司 | Multifunctional separation membrane cleaning device and cleaning method |
| TWI734659B (en) * | 2021-02-09 | 2021-07-21 | 上品綜合工業股份有限公司 | Fluororesin filter device, unit and its manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1551856A (en) * | 2001-09-05 | 2004-12-01 | ������������ʽ���� | Water-clean cartridge, water-cleaner, and washing method of water-cleaner |
| CN101351262A (en) * | 2006-01-19 | 2009-01-21 | 东丽株式会社 | Hollow-fiber membrane module |
| CN201524526U (en) * | 2009-09-21 | 2010-07-14 | 江苏金山环保工程集团有限公司 | Filtering device using hollow fiber ultrafiltration membrane |
-
2011
- 2011-10-18 CN CN201110316462.0A patent/CN103055701B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1551856A (en) * | 2001-09-05 | 2004-12-01 | ������������ʽ���� | Water-clean cartridge, water-cleaner, and washing method of water-cleaner |
| CN101351262A (en) * | 2006-01-19 | 2009-01-21 | 东丽株式会社 | Hollow-fiber membrane module |
| CN201524526U (en) * | 2009-09-21 | 2010-07-14 | 江苏金山环保工程集团有限公司 | Filtering device using hollow fiber ultrafiltration membrane |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103224307A (en) * | 2013-04-28 | 2013-07-31 | 浙江晶泉水处理设备有限公司 | Continuous electro-adsorption process-based sea water desalination apparatus |
| CN103224307B (en) * | 2013-04-28 | 2015-05-06 | 浙江晶泉水处理设备有限公司 | Continuous electro-adsorption process-based sea water desalination apparatus |
| CN110049786A (en) * | 2016-12-09 | 2019-07-23 | 懿华水处理技术有限责任公司 | The control system that mixing and energy for optimizing hybrid system use |
| CN108421296A (en) * | 2018-02-13 | 2018-08-21 | 佛山市澳霆环境设备制造有限公司 | A kind of filter auto-cleaning structure thereof |
| CN112587989A (en) * | 2020-09-01 | 2021-04-02 | 中国科学院上海应用物理研究所 | Filter element device, filter and application thereof |
| CN112717703A (en) * | 2020-12-10 | 2021-04-30 | 哈尔滨乐普实业有限公司 | Multifunctional separation membrane cleaning device and cleaning method |
| TWI734659B (en) * | 2021-02-09 | 2021-07-21 | 上品綜合工業股份有限公司 | Fluororesin filter device, unit and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103055701B (en) | 2015-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103055701B (en) | Cleanable security filter and its application | |
| EP2301655B1 (en) | Filtering element | |
| KR101513250B1 (en) | Central baffle, pressurized hollow fiber membrane module having the same and cleaning method thereof | |
| CN102030390A (en) | Membrane precision filter for wastewater treatment and application thereof | |
| KR20140040173A (en) | Membrane filtration method and membrane filtration device | |
| SG181937A1 (en) | Water production system and operation method therefor | |
| CN110790344A (en) | Novel drinking water advanced treatment and purification device and method | |
| CN102107118A (en) | Reverse osmosis safety filter with cleaning function and cleaning method thereof | |
| CN103055699B (en) | A kind of high accuracy filter core of security filter capable of washing and application thereof | |
| CN201719980U (en) | Tubular composite membrane ultrafiltration and microfiltration assembly | |
| CN103768949A (en) | Washing device and washing method applicable to microfiltration process | |
| CN203498181U (en) | System for recycling waste acid and waste alkali | |
| CN201473365U (en) | Device for recycling waste water by complete membrane method | |
| CN205627669U (en) | Antipollution high flux complex film and membrane module thereof | |
| CN201906564U (en) | External compression type loop-free solid-liquid separation dynamic membrane device | |
| CN103084070A (en) | Method for preventing whole-house separate purifying device film from being polluted | |
| CN204602005U (en) | Film group device with scrubbing mechanism and the water purifier using this film group device to make | |
| CN113943060A (en) | Integrated environment-friendly water purification process for high-rise building | |
| CN211586041U (en) | High-multiple CDRO membrane group series device | |
| CN210163181U (en) | Two-way alternating water purification machine membrane filtration system | |
| CN107715697A (en) | A kind of hollow fiber film assembly being used in membrane chemical reactor | |
| CN108298713B (en) | Wastewater purifier of washing machine | |
| CN111821740A (en) | Filter device and system | |
| CN202744367U (en) | Pure water system | |
| CN205313231U (en) | Pure water manufacture equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |