CN104107635A - Internal pressure type hollow fiber ultrafilter membrane device - Google Patents
Internal pressure type hollow fiber ultrafilter membrane device Download PDFInfo
- Publication number
- CN104107635A CN104107635A CN201410273025.9A CN201410273025A CN104107635A CN 104107635 A CN104107635 A CN 104107635A CN 201410273025 A CN201410273025 A CN 201410273025A CN 104107635 A CN104107635 A CN 104107635A
- Authority
- CN
- China
- Prior art keywords
- hollow fiber
- water inlet
- inner pressed
- pressed hollow
- reversal valve
- 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.)
- Pending
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an internal pressure type hollow fiber ultrafilter membrane device comprising a shell, which is provided with a water inlet, a clean water outlet, and a sewage outlet. The internal pressure type hollow fiber ultrafilter membrane device also comprises an internal pressure type hollow fiber ultrafilter membrane, which is arranged in the shell, wherein the water inlet and the sewage outlet are arranged in the opposite two side walls and positioned on the two ends of the internal pressure type hollow fiber ultrafilter membrane in the axial direction, and the clean water outlet is arranged between the water inlet and the sewage outlet; a reversing valve, which is arranged on a clean water pipeline communicating with the clean water outlet; and a communicating pipe, wherein the two ends of the communicating pipe are respectively connected to the water inlet and the reversing valve, the reversing valve is configured to open/close the clean water pipeline, and the clean water outlet is communicated with the communicating pipe when the reversing valve closes the clean water pipeline. The internal pressure type hollow fiber ultrafilter membrane device can realize simultaneous water filling in the forward direction and in the backward direction only through one shot conventional operation, thus the filter cake layer can be effectively brushed off to guarantee the water flux, the washing effect is good, the operation is convenient, and the device is user-friendly.
Description
Technical field
The present invention relates to purifier field, especially relate to a kind of inner pressed hollow fiber uf membrane system.
Background technology
In correlation technique, point out, milipore filter, as a kind of physical filtering technology, is widely used in fields such as municipal water supply, middle water reuse, family's water purification, desalinizations.In most of applications, all require milipore filter should there is stable operating flux, but, owing to can produce concentration polarization in filter process, the closer to tube wall, particle concentration is higher, in the course of time, can be deposited on tube wall, form cake layer, can have a strong impact on water flux, this just requires milipore filter to carry out regular cleaning and maintenance, for inner pressed hollow fiber ultrafiltration membrane, simple flushing do not reach good developing result, and complicated flushing process is comparatively loaded down with trivial details, operation easier is high, the judgement of washing time cannot quantize, cause washing time long, flush efficiency is low.
Summary of the invention
The present invention is intended at least solve one of technical problem existing in prior art.For this reason, the object of the invention is to propose a kind of inner pressed hollow fiber uf membrane system, described inner pressed hollow fiber uf membrane system rinses convenient, and developing result is good, and washing time can quantize, and flush efficiency is high.
According to inner pressed hollow fiber uf membrane system of the present invention, comprising: housing, is formed with water inlet, pure water inlet and sewage draining exit on described housing; Inner pressed hollow fiber ultrafiltration membrane, described inner pressed hollow fiber ultrafiltration membrane is located in described housing, described water inlet and described sewage draining exit are respectively formed in the opposing sidewalls of described housing and are positioned at the axial two ends of described inner pressed hollow fiber ultrafiltration membrane, and described pure water inlet is formed between described water inlet and described sewage draining exit; Reversal valve, described reversal valve is located on the water pipeline communicating with described pure water inlet; And communicating pipe, the two ends of described communicating pipe are connected with described reversal valve with described water inlet respectively, wherein said reversal valve is arranged for conducting or turn-offs described water pipeline, and described in the time that described reversal valve turn-offs described water pipeline, pure water inlet was communicated with described communicating pipe.
According to inner pressed hollow fiber uf membrane system of the present invention, intake by the Direct/Reverse of normal operating simultaneously, thereby effectively wash away cake layer, ensured water flux, developing result is remarkable, and only needs single stepping can complete flushing, easy and simple to handle, easy to use.
Alternatively, the contiguous described water inlet of described pure water inlet is arranged.Thus, can better inner pressed hollow fiber ultrafiltration membrane be rinsed well.
Alternatively, described inner pressed hollow fiber ultrafiltration membrane comprises multiple hollow fiber film tubes, and the external diameter of each described hollow fiber film tube is 0.6mm～3.0mm.
Further, described inner pressed hollow fiber uf membrane system further comprises: flow sensor, described flow sensor is located on described water pipeline and is positioned at the side away from described pure water inlet of described reversal valve, in the time that the flow in the described water pipeline that described flow sensor detects is more than or equal to predetermined threshold described in pure water inlet be communicated with described communicating pipe that by described reversal valve described inner pressed hollow fiber ultrafiltration membrane is rinsed.
Alternatively, the washing time described inner pressed hollow fiber ultrafiltration membrane being rinsed is 10s～240s.
Particularly, described predetermined threshold comprises instantaneous delivery threshold value and integrated flow threshold value, in the time that the instantaneous delivery in the described water pipeline that described flow sensor detects is more than or equal to described instantaneous delivery threshold value and/or integrated flow and is more than or equal to described integrated flow threshold value, described pure water inlet is communicated with described communicating pipe by described reversal valve.
Further, described instantaneous delivery threshold value is a value between 30% × J × A～70% × J × A, and wherein, J is the initial film flux of described inner pressed hollow fiber ultrafiltration membrane, and A is the membrane area of described inner pressed hollow fiber ultrafiltration membrane.
Further, described integrated flow threshold value is (0.3 × A) m
3～(5 × A) m
3between a value, A is the membrane area of described inner pressed hollow fiber ultrafiltration membrane.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
Fig. 1 is according to the view of the reversal valve conducting water pipeline of the inner pressed hollow fiber uf membrane system of the embodiment of the present invention;
Fig. 2 is the view that the reversal valve of the inner pressed hollow fiber uf membrane system shown in Fig. 1 turn-offs water pipeline.
Reference numeral:
100: inner pressed hollow fiber uf membrane system;
1: housing; 11: water inlet; 12: pure water inlet; 13: sewage draining exit;
2: reversal valve; 3: flow sensor; 4: communicating pipe; 5: inlet pipeline;
61: the first water pipelines; 62: the second water pipelines.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " length ", " interior ", " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, except as otherwise noted, the implication of " multiple " is two or more.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
Disclosing below provides many different embodiment or example to be used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts to specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can be in different examples repeat reference numerals and/or letter.This repetition is in order to simplify and object clearly, itself do not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.
Describe according to the inner pressed hollow fiber uf membrane system 100 of the embodiment of the present invention below with reference to Fig. 1 and Fig. 2.
As shown in Figure 1, according to the inner pressed hollow fiber uf membrane system 100 of the embodiment of the present invention, comprising: housing 1, inner pressed hollow fiber ultrafiltration membrane (scheming not shown), reversal valve 2 and communicating pipe 4.
With reference to Fig. 1, on housing 1, be formed with water inlet 11, pure water inlet 12 and sewage draining exit 13, inner pressed hollow fiber ultrafiltration membrane is located in housing 1, water inlet 11 and sewage draining exit 13 are respectively formed in the opposing sidewalls of housing 1 and are positioned at the axial two ends of inner pressed hollow fiber ultrafiltration membrane, and pure water inlet 12 is formed between water inlet 11 and sewage draining exit 13.Particularly, housing 1 can be hollow and airtight cylindrical shape, the two ends of the length direction of housing 1 are formed with respectively the water inlet 11 and the sewage draining exit 13 that run through, inner pressed hollow fiber ultrafiltration membrane is located in housing 1, and inner pressed hollow fiber ultrafiltration membrane comprises multiple hollow fiber film tubes, each hollow fiber film tube all extends along the length direction of housing 1, one end of the contiguous water inlet 11 of each hollow fiber film tube is defined as to arrival end, one end of contiguous sewage draining exit 13 is defined as the port of export, adopt end envelope (scheming not shown), for example resin end envelope is separately fixed at the arrival end of multiple hollow fiber film tubes and the port of export in housing 1, pure water inlet 12 is formed on the sidewall of housing 1, and between the end envelope at two ends.Alternatively, the external diameter of each hollow fiber film tube is 0.6mm～3.0mm, certainly, is not limited to this.
Inner pressed hollow fiber uf membrane system 100 is in Water treatment, first sewage draining exit 13 is closed and (for example can valve be set at sewage draining exit 13 places, valve-off can be closed sewage draining exit 13), then from water inlet 11 to the former water of the interior injection of housing 1, because water inlet 11 places are sealed with end envelope, thereby former water only can flow into from the arrival end of hollow fiber film tube the inner chamber of hollow fiber film tube, and under the effect of former water pressure, carry out dead-end filtration, now former water along hollow fiber film tube radially permeate from inside to outside to form purify waste water, purify waste water and flow out housing 1 from pure water inlet 12 and use for user, meanwhile, the particles of failing to penetrate from hollow fiber film tube etc. form concentrate by staying in the inner chamber of hollow fiber film tube, and the closer to the tube wall of hollow fiber film tube, the concentration of particle is higher, in the course of time form cake layer.Here, it should be noted that, " interior " can be understood as the direction towards hollow fiber film tube central axis, and its rightabout is defined as " outward ", away from the direction of hollow fiber film tube central axis.
Further, reversal valve 2 is located on the water pipeline communicating with pure water inlet 12, and the two ends of communicating pipe 4 are connected with reversal valve 2 with water inlet 11 respectively.As depicted in figs. 1 and 2, water inlet 11 can be connected with water source (scheming not shown) by inlet pipeline 5, pure water inlet 12 can be connected with water purification gathering-device (scheming not shown) by water pipeline, reversal valve 2 is located on water pipeline and between pure water inlet 12 and water purification gathering-device, part between pure water inlet 12 and reversal valve 2 on water pipeline is defined as to the first water pipeline 61, part between reversal valve 2 and water purification gathering-device on water pipeline is defined as to the second water pipeline 62, communicating pipe 4 is roughly the pipe of hollow, and the first end of communicating pipe 4 (example is lower end as shown in Figure 1) is connected to inlet pipeline 5, the second end (example is upper end as shown in Figure 1) of communicating pipe 4 is connected to reversal valve 2.
Particularly, reversal valve 2 is arranged for conducting or turn-offs water pipeline, and pure water inlet 12 was communicated with communicating pipe 4 in the time that reversal valve 2 turn-offs water pipeline.With reference to Fig. 1, in the time of reversal valve 2 conducting water pipeline, the first water pipeline 61 is connected with the second water pipeline 62, now the second end of communicating pipe 4 is blocked, former water in water source only can flow in housing 1 from water inlet 11 by inlet pipeline 5, sewage draining exit 13 is closed and can be completed water purification work simultaneously, purify waste water from pure water inlet 12 along the first water pipeline 61 and the second water pipeline 62 flow in water purification gathering-device.
Further, with reference to Fig. 2, in the time that reversal valve 2 turn-offs water pipeline, the first water pipeline 61 and the second water pipeline 62 are cut off, now the second end of communicating pipe 4 is opened, and be connected with the first water pipeline 61, former water in water source can pass through respectively inlet pipeline 5 from water inlet 11, and communicating pipe 4, the first water pipeline 61 flow in housing 1 from pure water inlet 12, sewage draining exit 13 is opened to realize flushing work simultaneously, in flushing process, the former water of a part flows into the inwall of the inner chamber washing hollow-fiber film pipe of hollow fiber film tube from water inlet 11, the former water of another part flows into housing 1 and impacts the outer wall of hollow fiber film tube from pure water inlet 12, after sewage draining exit 13 is opened, the flow velocity of the former water of hollow fiber film tube inside increases, make the water pressure of hollow fiber film tube inside be less than the water pressure of hollow fiber film tube outside, inside and outside hollow fiber film tube under the poor effect of pressure at both sides, the cake layer of hollow-fibre membrane inside pipe wall is loosening, under the souring of the inner former water of hollow fiber film tube, cake layer is washed out simultaneously, and finally wash away from sewage draining exit 13, to realize the object of rinsing.
Thus, one step completes flushing operation, in in flushing process, pressure, external pressure are intake simultaneously, clean to realize Direct/Reverse simultaneously, wherein the effect of external pressure water inlet is the reverse water inlet that utilizes normal operating, cake layer is impacted loosening, and in compress into water effect be to utilize current in the souring of hollow fiber film tube inner side, loosening cake layer to be washed out, thereby hollow fiber film tube is rinsed well, ensured water flux.
According to the inner pressed hollow fiber uf membrane system 100 of the embodiment of the present invention, optionally former water is introduced to housing 1 from pure water inlet 12 by adopting communicating pipe 4 and reversal valve 2, thereby the Direct/Reverse that realizes normal operating is intake simultaneously, make the inside and outside pressure reduction that produces of hollow fiber film tube, impel cake layer loose or dislocation, the souring of intaking due to forward again, cake layer can be washed effectively, and then guarantee water yield, there is significant cleaning performance, and only need single stepping can complete flushing, easy and simple to handle, easy to use, cleaning efficiency is high.
Alternatively, the contiguous water inlet 11 of pure water inlet 12 is arranged.For example, in the example of Fig. 1, water inlet 11 is formed on the bottom of housing 1, and pure water inlet 12 is formed on bottom and the contiguous water inlet 11 of housing 1, thereby in flushing process, can start to rinse from the source end of inner pressed hollow fiber ultrafiltration membrane, effectively ensure developing result.
Further, with reference to Fig. 1, inner pressed hollow fiber uf membrane system 100 further comprises: flow sensor 3, flow sensor 3 is located on water pipeline and is positioned at the side away from pure water inlet 12 of reversal valve 2, and in the time that the flow in the water pipeline that flow sensor 3 detects is more than or equal to predetermined threshold, pure water inlet 12 is communicated with internal pressure type hollow fiber milipore filter and rinses with communicating pipe 4 by reversal valve 2.
As shown in Figure 1, the second water pipeline 62 is provided with flow sensor 3, flow sensor 3 can detect the flow of purifying waste water of second water pipeline 62 of flowing through, in the time that inner pressed hollow fiber uf membrane system 100 carries out water purification operation, purifying waste water of filtering out flowed out from pure water inlet 12, and flow to water purification gathering-device along water pipeline, in this process, the flow of the second water pipeline 62 of flowing through is detected by flow sensor 3 always, when the flow detecting when flow sensor 3 is more than or equal to predetermined threshold, the concentration that concentrate in hollow fiber film tube is described is too high, affect water yield, from then on need to rinse operation, that is to say, when the flow detecting when flow sensor 3 is more than or equal to predetermined threshold, need to adopt reversal valve 2 that water pipeline is turn-offed, and open sewage draining exit 13 and rinse operation.
Particularly, predetermined threshold comprises instantaneous delivery threshold value and integrated flow threshold value, in the time that the instantaneous delivery in the water pipeline that flow sensor 3 detects is more than or equal to instantaneous delivery threshold value, or in the time that the integrated flow in the water pipeline that flow sensor 3 detects is more than or equal to integrated flow threshold value, or when the instantaneous delivery in the water pipeline that flow sensor 3 detects is more than or equal to instantaneous delivery threshold value, and in the time that the integrated flow in the water pipeline that flow sensor 3 detects is more than or equal to integrated flow threshold value simultaneously, pure water inlet 12 is communicated with communicating pipe 4 by reversal valve 2, start to rinse operation.
Wherein, instantaneous delivery threshold value is a value between 30% × J × A～70% × J × A, and wherein, J is the initial film flux of inner pressed hollow fiber ultrafiltration membrane, and A is the membrane area of inner pressed hollow fiber ultrafiltration membrane, and integrated flow threshold value is (0.3 × A) m
3～(5 × A) m
3between a value, A is the membrane area of inner pressed hollow fiber ultrafiltration membrane, and integrated flow threshold value needs specifically to select according to the turbidity index of the water quality of former water and former water etc. is concrete.Here, it should be noted that, " membrane flux " (or claiming transmission rates), refers at 25 DEG C, taking pure water as former water, under 0.1MPa intake pressure, in unit interval, by the Fluid Volume on elementary membrane area, " membrane area " refers to the summation of the area of the inwall of whole hollow fiber film tubes in inner pressed hollow fiber ultrafiltration membrane.
Alternatively, the washing time that internally pressure type hollow fiber milipore filter rinses is 10s～240s, in the time rinsing duration and reach predetermined washing time, can adopt reversal valve 2 by water pipeline conducting, and close sewage draining exit 13 and again carry out water purification operation.Thus, can quantize washing time, and can effectively ensure that the water-flowing amount of inner pressed hollow fiber uf membrane system 100 maintains in more stable scope, extend the service life of inner pressed hollow fiber uf membrane system 100.Here, it should be noted that, inner pressed hollow fiber uf membrane system 100 is alternately realized water purification operation and is rinsed operation, whole control procedure can be realized and automatically being controlled by microcomputer controller etc., to be user-friendly to, wherein, structure and the principle of microcomputer controller are well known to those skilled in the art, no longer describe in detail here.
Alternatively, flow sensor 3 can be water flow sensor, and particularly, water flow sensor is mainly made up of copper valve body, water flow rotor assembly, current stabilization assembly and Hall element, its structure composition and operation principle are well known to those skilled in the art, no longer describe in detail here.In the time adopting the flow of water flow sensor test ordinary tap water, often there is the phenomenon of dirty attached water circulation sub-component, thereby cause measured value fluctuation, even produce deviation, like this, in the time that water flow sensor is arranged on water pipeline, stream of cleaned water is through water flow sensor, Wash flow rotor assembly makes water flow rotor assembly to keep clean always, ensures that measured value is accurately stable.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (8)
1. an inner pressed hollow fiber uf membrane system, is characterized in that, comprising:
Housing, is formed with water inlet, pure water inlet and sewage draining exit on described housing;
Inner pressed hollow fiber ultrafiltration membrane, described inner pressed hollow fiber ultrafiltration membrane is located in described housing, described water inlet and described sewage draining exit are respectively formed in the opposing sidewalls of described housing and are positioned at the axial two ends of described inner pressed hollow fiber ultrafiltration membrane, and described pure water inlet is formed between described water inlet and described sewage draining exit;
Reversal valve, described reversal valve is located on the water pipeline communicating with described pure water inlet; And
Communicating pipe, the two ends of described communicating pipe are connected with described reversal valve with described water inlet respectively, wherein said reversal valve is arranged for conducting or turn-offs described water pipeline, and described in the time that described reversal valve turn-offs described water pipeline, pure water inlet was communicated with described communicating pipe.
2. inner pressed hollow fiber uf membrane system according to claim 1, is characterized in that, the contiguous described water inlet of described pure water inlet is arranged.
3. inner pressed hollow fiber uf membrane system according to claim 1, is characterized in that, described inner pressed hollow fiber ultrafiltration membrane comprises multiple hollow fiber film tubes, and the external diameter of each described hollow fiber film tube is 0.6mm～3.0mm.
4. according to the inner pressed hollow fiber uf membrane system described in any one in claim 1-3, it is characterized in that, further comprise:
Flow sensor, described flow sensor is located on described water pipeline and is positioned at the side away from described pure water inlet of described reversal valve, in the time that the flow in the described water pipeline that described flow sensor detects is more than or equal to predetermined threshold described in pure water inlet be communicated with described communicating pipe that by described reversal valve described inner pressed hollow fiber ultrafiltration membrane is rinsed.
5. inner pressed hollow fiber uf membrane system according to claim 4, is characterized in that, the washing time that described inner pressed hollow fiber ultrafiltration membrane is rinsed is 10s～240s.
6. inner pressed hollow fiber uf membrane system according to claim 4, it is characterized in that, described predetermined threshold comprises instantaneous delivery threshold value and integrated flow threshold value, in the time that the instantaneous delivery in the described water pipeline that described flow sensor detects is more than or equal to described instantaneous delivery threshold value and/or integrated flow and is more than or equal to described integrated flow threshold value, described pure water inlet is communicated with described communicating pipe by described reversal valve.
7. inner pressed hollow fiber uf membrane system according to claim 6, is characterized in that, described instantaneous delivery threshold value is a value between 30% × J × A～70% × J × A,
Wherein, J is the initial film flux of described inner pressed hollow fiber ultrafiltration membrane, and A is the membrane area of described inner pressed hollow fiber ultrafiltration membrane.
8. inner pressed hollow fiber uf membrane system according to claim 6, is characterized in that, described integrated flow threshold value is (0.3 × A) m
3～(5 × A) m
3between a value, A is the membrane area of described inner pressed hollow fiber ultrafiltration membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410273025.9A CN104107635A (en) | 2014-06-18 | 2014-06-18 | Internal pressure type hollow fiber ultrafilter membrane device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410273025.9A CN104107635A (en) | 2014-06-18 | 2014-06-18 | Internal pressure type hollow fiber ultrafilter membrane device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104107635A true CN104107635A (en) | 2014-10-22 |
Family
ID=51704741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410273025.9A Pending CN104107635A (en) | 2014-06-18 | 2014-06-18 | Internal pressure type hollow fiber ultrafilter membrane device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104107635A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253708A (en) * | 2021-04-29 | 2022-11-01 | 天津膜天膜科技股份有限公司 | Integrated hollow fiber membrane component integrating backwashing function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002361054A (en) * | 2001-06-12 | 2002-12-17 | Nkk Corp | Method for washing membrane filtration apparatus |
| CN1994537A (en) * | 2006-12-15 | 2007-07-11 | 南开大学 | Cleaning method for membrane filter device |
| CN202214238U (en) * | 2011-08-17 | 2012-05-09 | 联宇环保科技（上海）有限公司 | Internal pressure type double ultra-filtration water purifying device capable of realizing positive and reverse flushing |
| CN202876666U (en) * | 2012-10-29 | 2013-04-17 | 东莞日之泉蒸馏水有限公司 | Cleaning device for ultrafiltration membrane |
| CN103084069A (en) * | 2013-02-07 | 2013-05-08 | 深圳市诚德来实业有限公司 | Internal-pressure type ultrafiltration membrane flusher and flushing method |
| CN203620354U (en) * | 2013-12-04 | 2014-06-04 | 梅州市水保康发展有限公司 | Water filtering component with backwash structure |
-
2014
- 2014-06-18 CN CN201410273025.9A patent/CN104107635A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002361054A (en) * | 2001-06-12 | 2002-12-17 | Nkk Corp | Method for washing membrane filtration apparatus |
| CN1994537A (en) * | 2006-12-15 | 2007-07-11 | 南开大学 | Cleaning method for membrane filter device |
| CN202214238U (en) * | 2011-08-17 | 2012-05-09 | 联宇环保科技（上海）有限公司 | Internal pressure type double ultra-filtration water purifying device capable of realizing positive and reverse flushing |
| CN202876666U (en) * | 2012-10-29 | 2013-04-17 | 东莞日之泉蒸馏水有限公司 | Cleaning device for ultrafiltration membrane |
| CN103084069A (en) * | 2013-02-07 | 2013-05-08 | 深圳市诚德来实业有限公司 | Internal-pressure type ultrafiltration membrane flusher and flushing method |
| CN203620354U (en) * | 2013-12-04 | 2014-06-04 | 梅州市水保康发展有限公司 | Water filtering component with backwash structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253708A (en) * | 2021-04-29 | 2022-11-01 | 天津膜天膜科技股份有限公司 | Integrated hollow fiber membrane component integrating backwashing function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102794108B (en) | Counter-infiltration system | |
| CN105920905A (en) | Water purifier with large-flow ceramic filter element | |
| CN216513000U (en) | Positive and negative washing water purification system | |
| CN104755156B (en) | The method of operation of scrubbing membrane module | |
| JP6918637B2 (en) | Water treatment equipment and water treatment method | |
| CN106861265A (en) | A kind of water cleaning systems and back-washing method | |
| CN203904035U (en) | Water purifying device and water purifying dispenser with same | |
| CN105130036B (en) | From flushing water purifier | |
| CN104107635A (en) | Internal pressure type hollow fiber ultrafilter membrane device | |
| CN101069790A (en) | Method and apparatus for self-washing of filter | |
| CN204737758U (en) | Reverse osmosis filtration system and water dispenser with same | |
| JP2006289329A (en) | Water distribution system and its apparatus | |
| CN104761072A (en) | Water purifier and control method of water purifier | |
| CN204529403U (en) | Water-purifying machine | |
| RU2199377C1 (en) | Membrane plant for separation of solutions | |
| CN105668826A (en) | Clean drink equipment | |
| JP2009018288A (en) | Water purifier | |
| CN209636000U (en) | A kind of water purifier of the full water route pre-washing function of band | |
| CN208166634U (en) | Water purification system and water purifier | |
| CN207769560U (en) | The ultrafiltration apparatus of high-efficient purification sewage | |
| CN206597368U (en) | Fore filter | |
| KR101703674B1 (en) | Hollowfiber membrane moldule and hollowfiber membrane moldule housing therefor | |
| CN206511963U (en) | A kind of water purifier and water cleaning systems | |
| JPH11137976A (en) | Filter device | |
| CN220766556U (en) | Water purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141022 |