CN108421415A - A kind of wound membrane element - Google Patents
A kind of wound membrane element Download PDFInfo
- Publication number
- CN108421415A CN108421415A CN201810506458.2A CN201810506458A CN108421415A CN 108421415 A CN108421415 A CN 108421415A CN 201810506458 A CN201810506458 A CN 201810506458A CN 108421415 A CN108421415 A CN 108421415A
- Authority
- CN
- China
- Prior art keywords
- guiding screen
- water flow
- water
- raw water
- production
- 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.)
- Withdrawn
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 88
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 156
- 238000004519 manufacturing process Methods 0.000 claims abstract description 45
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000000926 separation method Methods 0.000 claims abstract description 34
- 238000000746 purification Methods 0.000 claims abstract description 21
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 239000002390 adhesive tape Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000001223 reverse osmosis Methods 0.000 claims description 4
- 238000000108 ultra-filtration Methods 0.000 claims description 4
- 238000005374 membrane filtration Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of wound membrane elements, including central collecting pipe, adhesive, Separation membrane, raw water flow-guiding screen, production water flow-guiding screen；The Separation membrane, raw water flow-guiding screen and production water flow-guiding screen form water purification diaphragm group, and the water purification diaphragm group is wrapped in the central collecting pipe；The Separation membrane is sheet high-precision filtration film, and raw water flow-guiding screen is adjoined in the side of the Separation membrane, and production water flow-guiding screen is adjoined in the other side；After winding central collecting pipe, entire outer surface is wound with adhesive tape and is sealed the water purification diaphragm group, and raw water water inlet end and concentrated water discharge ends is arranged.The present invention is by setting along raw water water inlet end to concentrated water discharge ends direction distribution gradient the thickness of raw water flow-guiding screen in wound membrane element and production water flow-guiding screen to, increase the linear velocity of concentrated water discharge ends draining, membrane component is set to be not easy to plug, increase the salt rejection rate and anti-pollution rate of film, increase the service life of film, reduces use cost.
Description
Technical field
The present invention relates to purifier more particularly to a kind of filters of purifier, relate in particular to a kind of filtering
A kind of wound membrane element of device.
Background technology
Wound membrane element is that existing market uses one of extensive film application form, the big, installation operation with filling density
Effective membrane area is larger in easy, compact-sized, unit volume, manufacture craft is relatively easy.Currently, common wound membrane element
It is for seperation film common in fluid separation field, including reverse osmosis membrane, NF membrane, ultrafiltration membrane, microfiltration membranes etc., Ta Menli
The stalling characteristic having with Separation membrane itself removes certain in fluid or many kinds of substance, reaches the mesh such as purification, concentration, purification
's.
Existing wound membrane element is that plate membrane rolls, including Separation membrane, raw water flow-guiding screen, production water flow-guiding screen,
Central collecting pipe, adhesive etc..Wound membrane element is different from traditional filtering stream direction to water flowing, and water supply is from membrane component end
Portion introduces, and water supply is flowed along the parallel direction of film surface, and the product water detached is perpendicular to film surface, in entering through film
Heart collector pipe, in this way, forming a vertical, lateral cross one another flow direction.Due to the Separation membrane of traditional wound membrane element
It is writing board shape, so intake tunnel and production aquaporin are provided by raw water flow-guiding screen and production water flow-guiding screen respectively, raw water is passing through
During crossing entire membrane component, the diaphragm pressure close to raw water water inlet end is larger, elementary stream speed, and close to concentrated water drainage
The diaphragm pressure of water end (W.E.) reduces, and flow linear velocity reduces, meanwhile, salinity, which is constantly collected, in concentrated water discharge ends water increases, and causes
Salt rejection rate, water flux and the anti-fouling performance of membrane component reduce, and membrane component easily blocks, and shorten the service life of film, increase and use
Cost.
Invention content
To overcome the deficiencies in the prior art, the present invention provides a kind of wound membrane element, and the membrane component is by water purification film
The thickness of raw water flow-guiding screen and production water flow-guiding screen in piece group is designed as along raw water water inlet end to concentrated water discharge ends direction in longitudinal
Gradient is distributed.
To achieve the above object, the present invention provides following technical scheme：A kind of wound membrane element, including central collecting pipe,
Adhesive, Separation membrane, raw water flow-guiding screen, production water flow-guiding screen；The Separation membrane is sheet high-precision filtration film, the separation
The raw water flow-guiding screen is adjoined in the side of diaphragm, and the production water flow-guiding screen, the Separation membrane, raw water flow-guiding screen are adjoined in the other side
With production water flow-guiding screen form water purification diaphragm group, the central collecting pipe be equipped with water seepage hole, the production water flow-guiding screen be arranged to and
The central collecting pipe contact, after winding central collecting pipe, entire outer surface adhesive tape winds close the water purification diaphragm group
Envelope, and raw water water inlet end and concentrated water discharge ends are set, Y type sealing collars are set in raw water water inlet end side, the raw water is led
The thickness of drift net and the production water flow-guiding screen is set as along raw water water inlet end to concentrated water discharge ends direction distribution gradient.
As further limiting for the present invention, the Separation membrane, raw water flow-guiding screen and production water flow-guiding screen form water purification film
Piece group, the water purification diaphragm group include a raw water flow-guiding screen, two Separation membranes and a production water water conservancy diversion
Net；Two Separation membranes are to be folded by a big Separation membrane and formed, and inside forms raw water runner after folding,
Outside forms production water flow passage；The raw water flow-guiding screen is inserted in the raw water runner.
As further limiting for the present invention, the folded edge that the Separation membrane is formed after folding is that the raw water runner closes
A side of sealing is closed, the folded edge is wrapped like close to the central collecting pipe in the wound membrane element.
As further limiting for the present invention, rectangular after the production water flow passage expansion, the production water flow passage is close to described
Central collecting pipe side does not apply described adhesive, and excess-three side is bonded with described adhesive and closed.
As further limiting for the present invention, the central collecting pipe is hollow tube, the central collecting pipe and the original
The identical side seal of water water inlet end.
As further limiting for the present invention, the thickness of the raw water flow-guiding screen is along raw water water inlet end to concentrated water discharge ends side
It is distributed in longitudinal gradient, thickness of the raw water flow-guiding screen close to raw water water inlet end side is proximate to the concentrated water draining
Hold side thickness 1~5 times.
As further limiting for the present invention, the thickness of the production water flow-guiding screen is along raw water water inlet end to concentrated water discharge ends side
It is distributed in longitudinal gradient, thickness of the production water flow-guiding screen close to concentrated water discharge ends side is proximate to the raw water water inlet
Hold side thickness 1~5 times.
As further limiting for the present invention, the high-precision filtration film is reverse osmosis membrane or NF membrane, either
Ultrafiltration membrane.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of wound membrane element of the present invention, production water flow-guiding screen is arranged to contact with the central collecting pipe, described
After winding central collecting pipe, entire outer surface is wound with adhesive tape and is sealed water purification diaphragm group, and raw water water inlet end and dense is arranged
Water discharge ends are arranged Y type sealing collars in raw water water inlet end side, and the raw water flow-guiding screen in the membrane component are led with production water
The thickness of drift net is designed as along raw water water inlet end to concentrated water discharge ends direction being in that longitudinal gradient is distributed, to increase raw water in concentrated water
The flow linear velocity of discharge ends so that the substance that Separation membrane is easily blocked in water is not easy to deposit in film surface, reduces the saliferous of water
Amount, improves the antifouling property of film, and prolonging service lifetime of film reduces use cost.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of wound membrane element of the present invention；
Fig. 2 is enlarged diagram at A in Fig. 1；
A kind of outline drawing of wound membrane element of Fig. 3 present invention；
Fig. 4 is the structural schematic diagram after a kind of production water water conservancy diversion net unfolding of wound membrane element of the present invention；
Fig. 5 is the structural schematic diagram after a kind of raw water water conservancy diversion net unfolding of wound membrane element of the present invention；
Wherein：1. Separation membrane；2. raw water flow-guiding screen；3. producing water flow-guiding screen；4. central collecting pipe；5. water seepage hole；6. viscous
Mixture；7. seal；8.Y type sealing collars；9. raw water water inlet end；10. concentrated water discharge ends；11. adhesive tape.
Specific implementation mode
Embodiment 1
For ease of it will be appreciated by those skilled in the art that carrying out the technology to the present invention below in conjunction with the drawings and specific embodiments
Scheme is further to be limited, but claimed range be not only limited to made by describe.
As shown in Fig. 1 to 5, a kind of wound membrane element, including Separation membrane 1, raw water flow-guiding screen 2, production water flow-guiding screen 3, in
Heart collector pipe 4 and adhesive 6；The Separation membrane 1 is sheet high-precision filtration film, and the sheet high-precision filtration film is reverse osmosis
The raw water flow-guiding screen 2, the other side are adjoined in the side of permeable membrane NF membrane or ultrafiltration membrane, the Separation membrane 1
Adjoin the production water flow-guiding screen 3, the Separation membrane 1, raw water flow-guiding screen 2 and production water flow-guiding screen 3 form water purification diaphragm group, described
Central collecting pipe 4 is equipped with water seepage hole 5, and the production water flow-guiding screen 3 is arranged to contact with the central collecting pipe 4, the water purification
After winding central collecting pipe 4, entire outer surface is wound with adhesive tape 11 and is sealed diaphragm group, and raw water water inlet end 9 and dense is arranged
Water discharge ends 10, setting Y types sealing collar 8, the raw water flow-guiding screen 2 and the production water water conservancy diversion in 1 side of raw water water inlet end
The thickness of net 3 is set as along raw water water inlet end to concentrated water discharge ends direction distribution gradient.The Separation membrane 1, raw water water conservancy diversion
Net 2 and production water flow-guiding screen 3 form water purification diaphragm group, and the water purification diaphragm group includes 2, two Separation membranes of a raw water flow-guiding screen
1 and a production water flow-guiding screen 3, two seperation films 1 are to be folded by a big Separation membrane 1 and formed, after folding
Inside forms raw water runner, and outside forms production water flow passage；The raw water flow-guiding screen 1 is inserted in the raw water runner, and after folding
The folded edge of formation is a side of the raw water runner closing seam, the folded edge close to the central collecting pipe 4, and
It is wrapped like in the wound membrane element.Rectangular after the production water flow passage expansion, the production water flow passage is close to the center
Collector pipe side does not apply described adhesive, and excess-three side is bonded with described adhesive and closed；The central collecting pipe 4 is hollow
Pipe, the side seal identical with the raw water water inlet end 9 of central collecting pipe 4.
The thickness of the raw water flow-guiding screen 2 is in longitudinal gradient distribution along raw water water inlet end 9 to 10 direction of concentrated water discharge ends, and
Thickness close to 9 side of raw water water inlet end is 0.7mm, is 0.3mm close to 10 side thickness of the concentrated water discharge ends；It is described
It is in that longitudinal gradient is distributed that the thickness of water flow-guiding screen 3, which is produced, along raw water water inlet end 9 to 10 direction of concentrated water discharge ends, close to the raw water into
The thickness of 9 side of water end (W.E.) is 0.15mm, is 0.55mm close to 10 side thickness of the concentrated water discharge ends；In the wound membrane element
The length of raw water flow-guiding screen 2 is 51cm, width 0.27m；The length for producing water flow-guiding screen 3 is 51cm, width 0.27m.
Technique effect is tested：Same model diaphragm, equal length diaphragm is taken to be rolled using experimental method of the present invention
Membrane component, in 0.41Mpa, 200ppm sodium chloride solutions carry out water purification under the conditions of 35% rate of recovery with common wound membrane element
Flux and salt rejection rate contrast experiment, result are as follows：
Embodiment 2
The wound membrane element of the present embodiment is basic and embodiment 1 is identical, the difference is that：The raw water flow-guiding screen 2 leans on
The thickness of nearly 9 side of raw water water inlet end is 0.6mm, is 0.2mm close to 10 side thickness of the concentrated water discharge ends；The production
Thickness of the water flow-guiding screen 3 close to 9 side of raw water water inlet end is 0.10mm, is close to 10 side thickness of the concentrated water discharge ends
0.50mm。
Technique effect is tested：Same model diaphragm, equal length diaphragm is taken to be rolled using experimental method of the present invention
Membrane component, in 0.41Mpa, 200ppm sodium chloride solutions carry out water purification under the conditions of 35% rate of recovery with common wound membrane element
Flux and salt rejection rate contrast experiment, result are as follows：
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
Describe in detail it is bright, it is all at this it should be understood that above is only a specific embodiment of the present invention, be not intended to restrict the invention
Within the spirit and principle of invention, all any modification, equivalent and improvement done should be included in protection scope of the present invention
Within.
Claims (8)
1. a kind of wound membrane element, including central collecting pipe, adhesive, Separation membrane, raw water flow-guiding screen, production water flow-guiding screen；Institute
It is sheet high-precision filtration film to state Separation membrane, and the raw water flow-guiding screen is adjoined in the side of the Separation membrane, and the other side is adjoined
The production water flow-guiding screen, the Separation membrane, raw water flow-guiding screen and production water flow-guiding screen form water purification diaphragm group, and the center is catchmented
Pipe is equipped with water seepage hole, and the production water flow-guiding screen is arranged to contact with the central collecting pipe, and the water purification diaphragm group is being wound
After the central collecting pipe, entire outer surface is wound with adhesive tape and is sealed, and raw water water inlet end and concentrated water discharge ends is arranged, in institute
Raw water water inlet end side setting Y type sealing collars are stated, the raw water flow-guiding screen and the thickness for producing water flow-guiding screen are set as along original
Water water inlet end is to concentrated water discharge ends direction distribution gradient.
2. a kind of wound membrane element according to claim 1, it is characterised in that：The Separation membrane, raw water flow-guiding screen and
It produces water flow-guiding screen and forms water purification diaphragm group, the water purification diaphragm group includes a raw water flow-guiding screen, two seperation films
Piece and a production water flow-guiding screen；Two Separation membranes are to be folded by a big Separation membrane and formed, and are rolled over
Raw water runner is formed on the inside of poststack, outside forms production water flow passage；The raw water flow-guiding screen is inserted in the raw water runner.
3. a kind of wound membrane element according to claim 2, it is characterised in that：The folding that the Separation membrane is formed after folding
Folded side is a side of the raw water runner closing seam, and the folded edge is close to the central collecting pipe, and in the volume
It is wrapped like in formula membrane component.
4. a kind of wound membrane element according to claim 2, it is characterised in that：It is rectangular after the production water flow passage expansion,
The production water flow passage does not apply described adhesive close to the central collecting pipe side, and excess-three side is bonded with described adhesive and sealed
It closes.
5. a kind of wound membrane element according to claim 1, it is characterised in that：The central collecting pipe is hollow tube, institute
State a central collecting pipe side seal identical with the raw water water inlet end.
6. a kind of wound membrane element according to claim 1, it is characterised in that：The thickness of the raw water flow-guiding screen is along raw water
Water inlet end to concentrated water discharge ends direction is in that longitudinal gradient is distributed, thickness of the raw water flow-guiding screen close to raw water water inlet end side
Degree is proximate to 1~5 times of concentrated water discharge ends side thickness.
7. a kind of wound membrane element according to claim 1, it is characterised in that：The thickness of the production water flow-guiding screen is along raw water
Water inlet end to concentrated water discharge ends direction is in that longitudinal gradient is distributed, thickness of the production water flow-guiding screen close to concentrated water discharge ends side
Degree is proximate to 1~5 times of raw water water inlet end side thickness.
8. a kind of wound membrane element according to claim 1, it is characterised in that：The high-precision filtration film is reverse osmosis
Film NF membrane or ultrafiltration membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810506458.2A CN108421415A (en) | 2018-05-16 | 2018-05-16 | A kind of wound membrane element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810506458.2A CN108421415A (en) | 2018-05-16 | 2018-05-16 | A kind of wound membrane element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108421415A true CN108421415A (en) | 2018-08-21 |
Family
ID=63163963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810506458.2A Withdrawn CN108421415A (en) | 2018-05-16 | 2018-05-16 | A kind of wound membrane element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108421415A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821298A (en) * | 2019-03-21 | 2019-05-31 | 浙江沁园水处理科技有限公司 | A kind of production method of RO membrane filter |
| CN110204105A (en) * | 2019-07-10 | 2019-09-06 | 吴红平 | A kind of water purification catridge and its process for purifying water based on active carbon stick and wound membrane element |
| CN110314549A (en) * | 2019-08-13 | 2019-10-11 | 北京天地人环保科技有限公司 | Wound membrane element, rolling membrane filter and rolled film column |
| CN110314550A (en) * | 2019-08-13 | 2019-10-11 | 北京天地人环保科技有限公司 | Wound membrane element, rolling membrane filter and rolled film column |
| CN113491949A (en) * | 2020-03-21 | 2021-10-12 | 佛山市顺德区美的饮水机制造有限公司 | Reverse osmosis membrane element, preparation method thereof and filter element |
| WO2023246741A1 (en) * | 2022-06-21 | 2023-12-28 | 杭州苏博瑞驰科技有限公司 | Raw-water partial flow guide membrane element and filter element |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120103892A1 (en) * | 2010-10-28 | 2012-05-03 | General Electric Company | Separation module |
| CN204051456U (en) * | 2014-08-22 | 2014-12-31 | 江苏正本净化节水科技实业有限公司 | A kind of rolled membrane module |
| CN105233693A (en) * | 2015-11-13 | 2016-01-13 | 珠海格力电器股份有限公司 | Water purifier and reverse osmosis membrane element thereof |
| JP2016137462A (en) * | 2015-01-28 | 2016-08-04 | 富士フイルム株式会社 | Spiral type module for acidic gas separation |
| JP2017064598A (en) * | 2015-09-29 | 2017-04-06 | 東レ株式会社 | Spiral type separation membrane element and method for manufacturing the same |
| CN208542034U (en) * | 2018-05-16 | 2019-02-26 | 南京帝膜净水材料开发有限公司 | A kind of wound membrane element |
-
2018
- 2018-05-16 CN CN201810506458.2A patent/CN108421415A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120103892A1 (en) * | 2010-10-28 | 2012-05-03 | General Electric Company | Separation module |
| CN204051456U (en) * | 2014-08-22 | 2014-12-31 | 江苏正本净化节水科技实业有限公司 | A kind of rolled membrane module |
| JP2016137462A (en) * | 2015-01-28 | 2016-08-04 | 富士フイルム株式会社 | Spiral type module for acidic gas separation |
| JP2017064598A (en) * | 2015-09-29 | 2017-04-06 | 東レ株式会社 | Spiral type separation membrane element and method for manufacturing the same |
| CN105233693A (en) * | 2015-11-13 | 2016-01-13 | 珠海格力电器股份有限公司 | Water purifier and reverse osmosis membrane element thereof |
| CN208542034U (en) * | 2018-05-16 | 2019-02-26 | 南京帝膜净水材料开发有限公司 | A kind of wound membrane element |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821298A (en) * | 2019-03-21 | 2019-05-31 | 浙江沁园水处理科技有限公司 | A kind of production method of RO membrane filter |
| CN110204105A (en) * | 2019-07-10 | 2019-09-06 | 吴红平 | A kind of water purification catridge and its process for purifying water based on active carbon stick and wound membrane element |
| CN110314549A (en) * | 2019-08-13 | 2019-10-11 | 北京天地人环保科技有限公司 | Wound membrane element, rolling membrane filter and rolled film column |
| CN110314550A (en) * | 2019-08-13 | 2019-10-11 | 北京天地人环保科技有限公司 | Wound membrane element, rolling membrane filter and rolled film column |
| CN113491949A (en) * | 2020-03-21 | 2021-10-12 | 佛山市顺德区美的饮水机制造有限公司 | Reverse osmosis membrane element, preparation method thereof and filter element |
| CN113491949B (en) * | 2020-03-21 | 2022-08-26 | 佛山市美的清湖净水设备有限公司 | Reverse osmosis membrane element, preparation method thereof and filter element |
| WO2023246741A1 (en) * | 2022-06-21 | 2023-12-28 | 杭州苏博瑞驰科技有限公司 | Raw-water partial flow guide membrane element and filter element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108421415A (en) | A kind of wound membrane element | |
| CN104941448B (en) | reverse osmosis membrane element | |
| CN206381852U (en) | With the lateral flow type reverse osmosis membrane filt of one-piece type formation stream | |
| CN109999671A (en) | A kind of wound membrane structure and preparation method thereof improving reverse-osmosis membrane element flux | |
| CN101934198A (en) | Coiling type reverse osmosis membrane element with even water distribution | |
| CN109264826A (en) | Reverse osmosis membrane structure, filter core and purifier | |
| CN108654390A (en) | A kind of wound membrane element | |
| CN106076123B (en) | A kind of big flow long-life coiled reverse osmosis membrane element | |
| CN106927540A (en) | Extend the lateral flow type reverse osmosis membrane filt of fluid movable passageway | |
| CN208542034U (en) | A kind of wound membrane element | |
| CN208694727U (en) | A kind of side is into convection current reverse-osmosis membrane element and reverse osmosis membrane filt | |
| CN104906959A (en) | Lateral flow type reverse osmosis membrane element and water purification equipment | |
| CN107930403A (en) | A kind of wound membrane element | |
| CN204746109U (en) | Book formula film element of multistage formula integrated configuration | |
| CN208990579U (en) | Reverse-osmosis membrane element and water purification machine | |
| CN108421416A (en) | Spiral wound reverse-osmosis membrane element and water purifier | |
| WO2023246741A1 (en) | Raw-water partial flow guide membrane element and filter element | |
| CN104474901B (en) | A kind of water filtration rolled membrane module with dual pathways center tube structure | |
| CN109865432A (en) | A kind of ro components and preparation method thereof | |
| CN108654391A (en) | A kind of wound membrane element | |
| CN208591721U (en) | A kind of wound membrane element | |
| CN208694726U (en) | A kind of wound membrane element | |
| CN209039123U (en) | Reverse osmosis membrane filter core and water purifier | |
| CN208700642U (en) | A kind of reverse osmosis membrane filter element | |
| CN207929012U (en) | A kind of wound fil-tration membrane module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180821 |