CN202460484U - Easily-assembled integrated enhanced-type external-pressure hollow fiber membrane assembly - Google Patents
Easily-assembled integrated enhanced-type external-pressure hollow fiber membrane assembly Download PDFInfo
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- CN202460484U CN202460484U CN2011205703359U CN201120570335U CN202460484U CN 202460484 U CN202460484 U CN 202460484U CN 2011205703359 U CN2011205703359 U CN 2011205703359U CN 201120570335 U CN201120570335 U CN 201120570335U CN 202460484 U CN202460484 U CN 202460484U
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Abstract
The utility model discloses an easily-assembled integrated enhanced-type external-pressure hollow fiber membrane assembly. The easily-assembled integrated enhanced-type external-pressure hollow fiber membrane assembly is characterized by comprising at least one membrane assembly and two water collection devices, wherein the membrane assembly is composed of multiple hollow fiber membranes and two membrane sealing containers; and the water collection devices are cylindrical shells, the shells are provided with cylindrical hollow cavities, water flow channels are formed by the cylindrical hollow cavities, the top ends of the shells are provided with first pipe connectors, the bottom ends of the shells are provided with second pipe connectors which are matched with the first pipe connectors, and the side walls of the shells are provided with membrane assembly sockets. Under an assembly state, the two water collection devices are arranged face to face along the membrane assembly sockets, two membrane sealing containers of each membrane assembly are correspondingly inserted into the membrane assembly sockets of the two water collection devices, and hollow pipe cavities of the hollow fiber membranes in the membrane assembly are communicated with the cylindrical hollow cavities of the water collection devices. According to the easily-assembled integrated enhanced-type external-pressure hollow fiber membrane assembly disclosed by the utility model, the number of the used membrane assembly can be flexibly adjusted according to the water quality and the water capacity, a membrane is not easy to be damaged when in assembly, and the easily-assembled integrated enhanced-type external-pressure hollow fiber membrane assembly is firm and durable.
Description
Technical field
The utility model belongs to the cleaning equipment to water treatment field; Being specifically related to a kind of easy assembling can integrated enhanced external pressure hollow fiber film assembly, and the external pressure doughnut film processing system particularly suitable that this membrane module is formed changes in the drinking water water preparation process of surface water as water inlet greatly in indexs such as suspended solid, turbidity, microorganism and petroleum-type.
Background technology
The world today is owing to environmental pollution, and water resource is constantly deficient, forces water technology fast-developing.Since the doughnut membrane technology have lot of advantages (comprise filter area big, be prone to reverse clean and cost lower etc.), therefore all be widely used in the fields such as water treatment, sewage disposal and middle water reuse of giving.
The structure of the hollow-fibre membrane in the doughnut membrane technology is a hollow tubular, and the length of hollow tube is far longer than its caliber, look just as a rhizoid, so hollow-fibre membrane is called the film silk by image.The tube wall of film silk is the macromolecule membrane with micro-aperture, and this is the filter membrane of filtration.Several (being generally thousands of) film silk is assembled into a membrane module.In the doughnut film processing system, having a lot of membrane modules, is motive force with outside energy or chemical potential difference, the tube wall filter membrane of the film silk in each membrane module to the liquid that contains solute and solvent separate, purification etc.
The hollow-fibre membrane system is divided into external-compression type and inner pressed.Nearly all be inner pressed hollow-fibre membrane system giving water treatment field employed at present.The membrane module of inner pressed hollow-fibre membrane system has the pressure-bearing putamina of a hard, and the film tow of thousands of film silk compositions is inserted in the putamina putamina sealed at both ends; The encapsulant (sealing) that the film silk passes two ends stretches out, and the hollow tube chamber of the film silk that an end stretches out is communicated with water inlet, comes water to get in the hollow tube chamber of every film silk; Drive through pressure differential, radially see through the clear water that becomes behind the film fiber tube wall filter membrane after the purification from inside to outside, clear water gets into the gap of film silk and putamina wall in the putamina; Advancing from the putamina/delivery port flows out again; Be the water purification that obtains, the polluter of film silk membrane retention is then stayed in the film silk hollow tube chamber, from the other end outflow of film silk.Need regularly recoil in the technology or use chemical cleaning solution to clean the hollow tube chamber of film silk, avoid polluter (comprising bacterium) to stop up the film silk.Because the space is narrow and small in the putamina; The corner or spot as yet untouched by a clean-up campaign is just many, and this just makes inner pressed hollow-fibre membrane system be difficult for thoroughly recoil or clean that current are prone to alluvial in putamina; Polluted water; Breed bacteria when this system applies is being given in the drinking water water preparation process in the water treatment field, is easy to bring water quality safety hidden danger.In addition; Owing to be difficult for recoil or cleaning, the film silk just is prone to stifled, and when increasing the frequency that recoils or clean for the filter capacity (being called water flux) that improves the film silk; Can increase operating cost again; The waste plenty of time, in the service life that also can reduce the film silk, increased cost of equipment maintenance accordingly.
When external-compression type hollow-fibre membrane system used in giving water treatment field, the film silk was communicated with the water stream channel of captation, and the film silk is immersed in the pending style of calligraphy in pond, and the water stream channel of captation is connected with suction pump/recoil or scavenging pump through pipeline.Producing the water stage; Aeration in the water body, suction pump are opened, and the water in the pond gets in the hollow tube chamber of film silk after passing the tube wall filter membrane of film silk; Get in the water stream channel of captation along the hollow tube chamber of tube chamber, get in the follow-up clear water reserviors through the pipeline that is communicated with water stream channel again through film silk end.Accumulate in the film fiber tube wall outside behind pollutant in the water body (comprising bacterium) the tunicle fiber tube wall membrane retention; The film silk is constantly impacted to take away the pollutant that the film fiber tube wall outside is built up by current in the water body of aeration and air-flow; Pollutant promptly gets in the water body of pond, water body discharging in the pond after operation a period of time.At recoil stage or wash phase, water (flow) direction is opposite.Be the repeated stock of living the current air-flow that can stand, the film silk is to have added the outer press mold silk of the enhancement mode that strengthens structure in the pipe wall material.
Than inner pressed hollow-fibre membrane system, external-compression type hollow-fibre membrane system is because the film silk is immersed in the water body, and film silk space outerpace is big; The corner or spot as yet untouched by a clean-up campaign is just few, and recoil and cleaning are thorough, not polluted water; Film fiber tube wall filter membrane is difficult for stopping up, and system's operation and maintenance cost are all lower.In addition, external-compression type film system need not establish putamina, and therefore simple in structure, cost is lower.
And the external pressure hollow fiber film assembly that has used the outer press mold silk of enhancement mode whether can be integrated, whether to be easy to assembling all extremely important; Because this can influence the adaptive capacity (be impact resistance) of hollow-fibre membrane system to the water inlet of the different quality water yield; In addition; If membrane module is difficult for assembling, just damages the film silk when then assembling easily, and then reduce the service life of membrane module and film processing system.
The utility model content
The utility model provides a kind of easy assembling can integrated enhanced external pressure hollow fiber film assembly, can be according to the quantity of water quality and quantity membrane module that flexible is used, and easy damaged film silk not during assembling, firm and durable.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of easy assembling can integrated enhanced external pressure hollow fiber film assembly, comprises at least one diaphragm unit and two captations;
Said diaphragm unit is made up of several hollow-fibre membranes and two envelope film containers; Hollow-fibre membrane has the hollow tube chamber; The tube wall of hollow tube chamber is provided with the microfiltration hole; One end of the film tow that several hollow-fibre membrane is formed is encapsulated in the envelope film container through the colloid piece, and the other end of film tow is encapsulated in another envelope film container through the colloid piece, and the hollow-fibre membrane at said film tow two ends exposes in the end of two envelope film containers;
Said captation is the housing of a column, and this housing has a cylindrical hollow chamber, and this cylindrical hollow chamber forms water stream channel; The housing top offers first interface tube; First interface tube is communicated with the cylindrical hollow chamber, and the housing bottom offers second interface tube that matches with first interface tube, and second interface tube is communicated with the cylindrical hollow chamber; Offer the diaphragm unit socket on the housing sidewall, the diaphragm unit socket is communicated with the cylindrical hollow chamber;
Under confined state; Two captations are placed with its diaphragm unit socket face-to-face; In the diaphragm unit socket of two captations of two corresponding insertions of envelope film containers in each diaphragm unit, the hollow tube chamber of the hollow-fibre membrane in the diaphragm unit is communicated with the cylindrical hollow chamber of captation.
Related content in the technique scheme is explained as follows:
1, in the such scheme, said external pressure hollow fiber film assembly also includes the support that is used to support two captations.
2, in the such scheme; Said support is made up of at least two fixed bars; Said at least two fixed bars are located between two captations, and are parallel to the length direction of hollow-fibre membrane film tow, and the rod end corresponding to every fixed bar on two captations all offers fixed bar mounting groove or hole; One end of every fixed bar fixedly is inserted in the fixed bar mounting groove or hole of a captation, and the other end fixedly is inserted in the fixed bar mounting groove or hole of another captation.
3, in the such scheme; Two fixed bar mounting grooves or hole are respectively offered in the top of said captation housing and bottom; Two fixed bar mounting grooves or hole are symmetrical set in the top or the bottom of housing, and corresponding four fixed bar mounting grooves or hole are furnished with four fixed bars.
4, in the such scheme, all offer the connecting rod installing hole that is used for horizontal connection on the housing of said two captations, the axis normal of this connecting rod installing hole is in the length direction of hollow-fibre membrane film tow.
5, in the such scheme, a connecting rod installing hole is respectively offered in the top of said captation housing and bottom.
6, in the such scheme, inboard being provided with is used to hold the bayonet socket that seals film container around the diaphragm unit socket on the said captation housing.
7, in the such scheme, said first interface tube is the screwed pipe interface, and said second interface tube is the smooth tubes interface.
8, in the such scheme, be provided with the envelope film container supporting clapboard that at least one is arranged along its length in the said cylindrical hollow chamber.
9, in the such scheme, said hull outside wall is provided with some reinforcements.
The utility model operation principle is: each external pressure hollow fiber film assembly can be supporting with one, two or more diaphragm units, gets final product through the size of adjustment diaphragm unit or the appearance and size of adjustment captation.When assembling a membrane module; Earlier the two ends of fixed bar are inserted in the fixed bar mounting groove corresponding on the housing of two captations; Make captation and fixed bar form a firm frame structure; Diaphragm unit socket on two captations is relative at this moment; In the corresponding diaphragm unit socket that inserts on two captations of envelope film container with the diaphragm unit two ends, use encapsulant sealing envelope film container and diaphragm unit socket gap then, the hollow tube chamber of the film silk end in the envelope film container of diaphragm unit is communicated with the water stream channel of captation.
Membrane module is being immersed in the water body of pond with film silk horizontal (captation setting) when using.And the membrane module of integrated varying number is to adapt to the water inlet of the different quality water yield.
When the integrated a plurality of membrane module of need, on vertical and transversely all can be integrated.Vertical when integrated; First interface tube on the captation housing top of below membrane module inserts in second interface tube of membrane module captation housing bottom, adjacent top; Two interface tube gaps use encapsulant such as sealing ring or other sealing devices to seal, and vertically go up the integrated water stream channel of the captation of each membrane module afterwards and are communicated with up and down.First interface tube on the captation top of the membrane module of the top and suction channel, recoil pipeline and pipe blow-through are connected, and second interface tube of the captation housing bottom of the membrane module of below uses material such as engineering plastics to carry out shutoff.Suction channel connects suction pump, and the recoil pipeline connects recoil pump, and pipe blow-through connects scavenging pump.
When integrated in the horizontal, use connecting rod to pass successively in the connecting rod installing hole corresponding on the captation of adjacent membranes assembly transversely, make membrane module laterally integrated.
Producing the water stage; Under suction pump suction; Water body gets in the film fiber tube chamber by seeing through film fiber tube wall filter membrane in the hollow-fibre membrane film fiber tube wall lateral in the pond, flows in the water stream channel of captation of each membrane module again;, get into follow-up technological process after first interface tube on the captation housing top of the membrane module of the top flows out through the suction channel that links to each other.The pollutant that the film silk outside is built up gets in the water body of pond with the impact of current air-flow, produces water body regular discharge in the water stage pond.Recoil or wash phase; Under recoil pump or scavenging pump pressure; In recoil water or cleaning fluid the water stream channel, get into again in the film fiber tube chamber, see through the tube wall filter membrane of each film silk from inside to outside through the captation of recoil pipeline or pipe blow-through elder generation each membrane module of inflow; To the capable recoil of film fiber tube wall filter membrane or clean laggardly to go in the water body of pond, the pond water body discharges behind recoil or cleaning process.
Because the technique scheme utilization, the utility model compared with prior art has advantage:
1, since the utility model realized membrane module vertically and transversely can be integrated, more save and take up an area of; Different according to coming the water water quality and quantity, adjust employed membrane module quantity flexibly, and can be through filter plant transformations such as existing various filtered water reservoirs, depositing reservoir being formed the pond of this enhancement mode external pressure doughnut film processing system; Do not need to build separately film system workshop; Invest for a short time, use more flexibly, safeguard more convenient; More can make up, for water factory's comprehensive reformation provides condition with other advanced treatment process.
2, because the utility model is easy to assembling, make assembling the time not damage the film silk on the membrane module, can prolong system service life, reduce maintenance cost.
3, because the utility model membrane module is connected by connecting rod, fixed by fixed bar, structure is more firm, and is not yielding during use, also can protect the film silk, avoids the fracture of film silk.
4, because said first interface tube of the utility model is the screwed pipe interface, when making a plurality of membrane modules integrated, first interface tube of the membrane module of the top is more convenient for being connected with pipeline; Said second interface tube is the smooth tubes interface; When a plurality of membrane modules are integrated; Upper and lower membrane module facade is aligned; Directly insert first interface tube at membrane module top, below in second interface tube of top membrane module bottom again and sealing get final product, when having avoided being threaded because of thread error with screw the situation that the membrane module of operate miss on making vertically is difficult for aligning.
Description of drawings
Accompanying drawing 1 is the assembling assumption diagram of the utility model preferred embodiment;
Accompanying drawing 2 is the three-dimensional structure diagram of the diaphragm unit in the accompanying drawing 1;
Accompanying drawing 3 is the three-dimensional structure diagram of the captation in the accompanying drawing 1;
Accompanying drawing 4 be laterally with vertical the integrated structure chart of a plurality of the utility model preferred embodiments.
In the above accompanying drawing: 1, diaphragm unit; 2, captation; 3, hollow-fibre membrane; 4, envelope film container; 5, housing; 6, cylindrical hollow chamber; 7, first interface tube; 8, second interface tube; 9, diaphragm unit socket; 10, bayonet socket; 11, connecting rod installing hole; 12, fixed bar mounting groove; 13, fixed bar; 14, envelope film container supporting clapboard; 15, reinforcement; 16, colloid piece.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment: shown in accompanying drawing 1-4, a kind of easy assembling can integrated enhanced external pressure hollow fiber film assembly, comprises four diaphragm units 1 and two captations 2;
Said diaphragm unit 1 is made up of several (thousands of) hollow-fibre membrane 3 and two 4 of film containers of envelope; Hollow-fibre membrane 3 has the hollow tube chamber; The tube wall of hollow tube chamber is provided with the microfiltration hole; One end of the film tow that several hollow-fibre membranes 3 are formed is encapsulated in the envelope film container 4 through colloid piece 16, and the other end of film tow is encapsulated in another envelope film container 4 through colloid piece 16, and the hollow-fibre membrane 3 at said film tow two ends exposes in the end of two envelope film containers 4;
Said captation 2 is the housing 5 of a column, and this housing 5 has a cylindrical hollow chamber 6, and this cylindrical hollow chamber 6 forms water stream channel; Housing 5 tops offer first interface tube 7; First interface tube 7 is communicated with cylindrical hollow chamber 6, and housing 5 bottoms offer second interface tube, 8, the second interface tubes 8 that match with first interface tube 7 and are communicated with cylindrical hollow chamber 6; Offer diaphragm unit socket 9 on housing 5 sidewalls, diaphragm unit socket 9 is communicated with cylindrical hollow chamber 6;
Under confined state; Two captations 2 are placed with its diaphragm unit socket 9 face-to-face; In the diaphragm unit socket 9 of two captations 2 of two envelope film containers, 4 corresponding insertions in each diaphragm unit 1, the hollow tube chamber of the hollow-fibre membrane 3 in the diaphragm unit 1 is communicated with the cylindrical hollow chamber 6 of captation 2.
The external pressure hollow fiber film assembly also includes the support that is used to support two captations 2; Support is made up of two fixed bars 13; Two fixed bars 13 are located between two captations 2; And the length direction that is parallel to hollow-fibre membrane 3 film tow; Rod end corresponding to every fixed bar 13 on two captations 2 all offers fixed bar mounting groove 12 or hole, and an end of every fixed bar 13 fixedly is inserted in the fixed bar mounting groove 12 or hole of a captation 2, and the other end fixedly is inserted in the fixed bar mounting groove 12 or hole of another captation 2.Two fixed bar mounting grooves 12 or hole are respectively offered in the top of captation 2 housings 5 and bottom, and two fixed bar mounting grooves 12 or hole are symmetrical set in the top or the bottom of housing 5, and corresponding four fixed bar mounting grooves 12 or hole are furnished with four fixed bars 13.
In other examples, support can also be to be made up of a framework, and two captation 2 equal holders drop on the framework.
All offer the connecting rod installing hole 11 that is used for horizontal connection on the housing of two captations 2, the axis normal of this connecting rod installing hole 11 is in the length direction of hollow-fibre membrane 3 film tow.A connecting rod installing hole 11 is respectively offered in the top of captation 2 housings 5 and bottom.
Inboard being provided with is used to hold the bayonet socket 10 that seals film container 4 around the diaphragm unit socket 9 on captation 2 housings 5.
Be provided with an envelope film container supporting clapboard 14 of arranging along its length in the cylindrical hollow chamber 6.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection domain of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the utility model.
Claims (10)
1. an easy assembling can integrated enhanced external pressure hollow fiber film assembly, it is characterized in that: comprise at least one diaphragm unit (1) and two captations (2);
Said diaphragm unit (1) is made up of several hollow-fibre membranes (3) and two envelope film containers (4); Hollow-fibre membrane (3) has the hollow tube chamber; The tube wall of hollow tube chamber is provided with the microfiltration hole; One end of the film tow that several hollow-fibre membranes (3) are formed is encapsulated in the envelope film container (4) through colloid piece (16); The other end of film tow is encapsulated in another envelope film container (4) through colloid piece (16), and the hollow-fibre membrane (3) at said film tow two ends exposes in the end of two envelope film containers (4);
Said captation (2) is the housing (5) of a column; This housing (5) has a cylindrical hollow chamber (6); This cylindrical hollow chamber (6) forms water stream channel, and housing (5) top offers first interface tube (7), and first interface tube (7) is communicated with cylindrical hollow chamber (6); Housing (5) bottom offers second interface tube (8) that matches with first interface tube (7); Second interface tube (8) is communicated with cylindrical hollow chamber (6), offers diaphragm unit socket (9) on housing (5) sidewall, and diaphragm unit socket (9) is communicated with cylindrical hollow chamber (6);
Under confined state; Two captations (2) are placed with its diaphragm unit socket (9) face-to-face; In the diaphragm unit socket (9) of corresponding two captations of insertion of two envelope film containers (4) (2) in each diaphragm unit (1), the hollow tube chamber of the hollow-fibre membrane (3) in the diaphragm unit (1) is communicated with the cylindrical hollow chamber (6) of captation (2).
2. easy assembling according to claim 1 can integrated enhanced external pressure hollow fiber film assembly, and it is characterized in that: said external pressure hollow fiber film assembly also includes the support that is used to support two captations (2).
3. easy assembling according to claim 2 can integrated enhanced external pressure hollow fiber film assembly; It is characterized in that: said support is made up of at least two fixed bars (13); Said at least two fixed bars (13) are located between two captations (2); And the length direction that is parallel to hollow-fibre membrane (3) film tow; The rod end that two captations (2) are gone up corresponding to every fixed bar (13) all offers fixed bar mounting groove (12) or hole; One end of every fixed bar (13) fixedly is inserted in the fixed bar mounting groove (12) or hole of a captation (2), and the other end fixedly is inserted in the fixed bar mounting groove (12) or hole of another captation (2).
4. easy assembling according to claim 3 can integrated enhanced external pressure hollow fiber film assembly; It is characterized in that: two fixed bar mounting grooves (12) or hole are respectively offered in the top of said captation (2) housing (5) and bottom; Two fixed bar mounting grooves (12) or hole are symmetrical set in the top or the bottom of housing (5), and corresponding four fixed bar mounting grooves (12) or hole are furnished with four fixed bars (13).
5. easy assembling according to claim 1 can integrated enhanced external pressure hollow fiber film assembly; It is characterized in that: all offer the connecting rod installing hole (11) that is used for horizontal connection on the housing of said two captations (2), the axis normal of this connecting rod installing hole (11) is in the length direction of hollow-fibre membrane (3) film tow.
6. easy assembling according to claim 5 can integrated enhanced external pressure hollow fiber film assembly, and it is characterized in that: a connecting rod installing hole (11) is respectively offered in the top of said captation (2) housing (5) and bottom.
7. easy assembling according to claim 1 can integrated enhanced external pressure hollow fiber film assembly, it is characterized in that: the diaphragm unit socket (9) on said captation (2) housing (5) inboard all around is provided with the bayonet socket (10) that is used to hold envelope film container (4).
8. easy assembling according to claim 1 can integrated enhanced external pressure hollow fiber film assembly, and it is characterized in that: said first interface tube (7) is the screwed pipe interface, and said second interface tube (8) is the smooth tubes interface.
9. easy assembling according to claim 1 can integrated enhanced external pressure hollow fiber film assembly, it is characterized in that: be provided with the envelope film container supporting clapboard (14) that at least one is arranged along its length in the said cylindrical hollow chamber (6).
10. easy assembling according to claim 1 can integrated enhanced external pressure hollow fiber film assembly, and it is characterized in that: said housing (5) lateral wall is provided with some reinforcements (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205703359U CN202460484U (en) | 2011-12-31 | 2011-12-31 | Easily-assembled integrated enhanced-type external-pressure hollow fiber membrane assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205703359U CN202460484U (en) | 2011-12-31 | 2011-12-31 | Easily-assembled integrated enhanced-type external-pressure hollow fiber membrane assembly |
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| Publication Number | Publication Date |
|---|---|
| CN202460484U true CN202460484U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205703359U Withdrawn - After Issue CN202460484U (en) | 2011-12-31 | 2011-12-31 | Easily-assembled integrated enhanced-type external-pressure hollow fiber membrane assembly |
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| Country | Link |
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| CN (1) | CN202460484U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553447A (en) * | 2011-12-31 | 2012-07-11 | 苏州市普滤得净化有限公司 | Enhanced external pressing hollow fibrous membrane assembly easy to assemble and capable of being integrated |
| WO2018082172A1 (en) * | 2016-11-03 | 2018-05-11 | 成都美富特膜科技有限公司 | Membrane assembly for water treatment |
| CN110066007A (en) * | 2019-04-30 | 2019-07-30 | 广州细润环保科技有限公司 | Filter element, membrane stack reactor, column reactor and its manufacturing method |
-
2011
- 2011-12-31 CN CN2011205703359U patent/CN202460484U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553447A (en) * | 2011-12-31 | 2012-07-11 | 苏州市普滤得净化有限公司 | Enhanced external pressing hollow fibrous membrane assembly easy to assemble and capable of being integrated |
| WO2018082172A1 (en) * | 2016-11-03 | 2018-05-11 | 成都美富特膜科技有限公司 | Membrane assembly for water treatment |
| CN110066007A (en) * | 2019-04-30 | 2019-07-30 | 广州细润环保科技有限公司 | Filter element, membrane stack reactor, column reactor and its manufacturing method |
| CN110066007B (en) * | 2019-04-30 | 2022-02-01 | 广州细润环保科技有限公司 | Filtration unit, membrane reactor, column reactor and method for manufacturing the same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20131030 |
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| RGAV | Abandon patent right to avoid regrant |