CN110975631B - Roll type membrane element water production separation net - Google Patents
Roll type membrane element water production separation net Download PDFInfo
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- CN110975631B CN110975631B CN201911318464.6A CN201911318464A CN110975631B CN 110975631 B CN110975631 B CN 110975631B CN 201911318464 A CN201911318464 A CN 201911318464A CN 110975631 B CN110975631 B CN 110975631B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000000926 separation method Methods 0.000 title claims abstract description 56
- 239000012528 membrane Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 230000004888 barrier function Effects 0.000 claims abstract 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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Classifications
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- 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
- B01D63/10—Spiral-wound membrane modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/24—Mechanical properties, e.g. strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a water production separation net of a roll-type membrane element, which is used for being wound on a central water collecting pipe in the roll-type membrane element, the water production separation net of the roll-type membrane element comprises a plurality of separation net wires, the separation net wires are arranged along at least two directions and are woven together, when the water production separation net of the roll-type membrane element is unfolded, the water production separation net of the roll-type membrane element is divided into an outer area A, a middle area and an outer area B along the axial direction of the central water collecting pipe or the tangential direction of the outer circumference of the central water collecting pipe, and the outer net wires A, the middle net wires and the outer net wires B which are correspondingly arranged are arranged according to the rule of one of the following: the arrangement space of the outer side mesh A and the arrangement space of the outer side mesh B are both larger than the arrangement space of the middle mesh, or the diameter of the outer side mesh A and the diameter of the outer side mesh B are both smaller than the diameter of the middle mesh. By adopting the technical scheme of the invention, the pressure resistance of the water production barrier net and the corresponding roll-type membrane element is enhanced by optimizing a plurality of barrier net wires forming the water production barrier net.
Description
Technical Field
The invention belongs to the technical field of reverse osmosis membrane elements, and particularly relates to a roll type membrane element water production separation net.
Background
At present, reverse osmosis membrane elements are widely applied to a sewage purification treatment process of water, the reverse osmosis membrane elements are generally in a roll shape, namely, a membrane sheet for filtering, a water production separation net and the like are wound on a central water collecting pipe to form a cylindrical long-cylinder roll type membrane element, the existing roll type membrane elements are widely applied to various fields, however, the existing roll type membrane elements can only be used for a long time under water with the pressure of less than 60kg, when the roll type membrane elements are applied to a high pressure condition, the roll type membrane elements can be damaged by excessive pressure to cause the shape change, particularly, the middle area of the roll type central water collecting pipe is easy to deform, the existing water production separation net is generally in a rectangular net structure formed by mutually weaving longitudinal net wires and transverse net wires, and when the middle part of the central water collecting pipe of the roll type membrane elements deforms under the high pressure condition, the corresponding area of the corresponding water production separation net also can deform, therefore, in order to improve the adaptability of the roll-type membrane element and enable the roll-type membrane element to be suitable for application in a high-pressure environment, a novel high-pressure-resistant water-producing water separation net is urgently needed to be developed, and the whole flux of the roll-type membrane element is improved while the high-pressure-resistant performance is achieved.
Disclosure of Invention
In order to solve the technical problem, the invention provides a roll-type membrane element water production separation net.
The invention is realized by the following technical scheme.
The invention provides a roll-type membrane element water production separation net which is used for being wound on a central water collecting pipe in the roll-type membrane element, the roll-type membrane element water production separation net comprises a plurality of separation net wires, the separation net wires are arranged along at least two directions and are woven together, when the roll-type membrane element water production separation net is unfolded, the roll-type membrane element water production separation net is divided into an outer area A, a middle area and an outer area B along the axial direction of the central water collecting pipe or the tangential direction of the outer circumference of the central water collecting pipe, the separation net wires arranged in the outer area A, the middle area and the outer area B are respectively and correspondingly called as an outer net wire A, a middle net wire and an outer net wire B, and the outer net wire A, the middle net wire and the outer net wire B are arranged according to the rule of one of the following items: the arrangement distance of the outer side net wires A and the arrangement distance of the outer side net wires B are both larger than the arrangement distance of the middle net wires, or the wire diameters of the outer side net wires A and the outer side net wires B are both smaller than the wire diameters of the middle net wires.
The width of the outer area A and the width of the outer area B are both smaller than the width of the middle area.
The outer region a has a width equal to the outer region B.
The outer side net wires A, the middle net wires A and the outer side net wires B are arranged in parallel with each other along the axial direction of the central water collecting pipe.
The outer side net wires A, the middle net wires A and the outer side net wires B are arranged in parallel with each other along the tangential direction of the outer peripheral surface of the central water collecting pipe.
The arrangement space of the outer side mesh wires A is equal to that of the outer side mesh wires B.
The diameter of the outer side net wire A is equal to that of the outer side net wire B.
The outer side net wires A, the middle net wires A and the outer side net wires B are arranged according to the following rule that the arrangement distance of the outer side net wires A (5) and the arrangement distance of the outer side net wires B are larger than the arrangement distance of the middle net wires, and the wire diameters of the outer side net wires A and the outer side net wires B are smaller than the wire diameter of the middle net wires.
And one part of the outer side net wires A, the middle net wires A and the outer side net wires B are arranged in parallel with each other along the axial direction of the central water collecting pipe, and the other part of the outer side net wires A, the middle net wires A and the outer side net wires B are arranged in parallel with each other along the tangential direction of the outer peripheral surface of the central water collecting pipe.
The invention has the beneficial effects that: by adopting the technical scheme of the invention, the strength and the bearing capacity of a central area corresponding to a central water collecting pipe on the water production separation net are enhanced by optimizing a plurality of separation net wires forming the water production separation net, compared with the prior art, the roll-type membrane element can be suitable for running under a high-pressure environment under the condition of ensuring the existing flux, the high-pressure resistance of the roll-type membrane element is enhanced, and the water production resistance of the water-doped separation net is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention.
In the figure: 1-outer zone a, 2-middle zone, 3-outer zone B, 4-central water collecting pipe, 5-outer mesh a, 6-middle mesh, 7-outer mesh B, 8-separation mesh.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a rolled membrane element water production separation net, which is used for being wound on a central water collecting pipe 4 inside the rolled membrane element, the rolled membrane element water production separation net comprises a plurality of net separation net wires 8, the net separation net wires 8 are arranged along at least two directions and are woven together, when the rolled membrane element water production separation net is unfolded, the rolled membrane element water production separation net is divided into an outer area a1, a middle area 2 and an outer area B3 along the axial direction of the central water collecting pipe 4 or the tangential direction of the outer circumference thereof, and the net separation net wires 8 arranged in the outer area a1, the middle area 2 and the outer area B3 are respectively called as outer net wires a5, a middle net wires 6 and outer net wires B7, and the outer net wires a5, the middle net wires 6 and the outer net wires B7 are arranged according to the rule of one of the following: the arrangement distance of the outer mesh A5 and the arrangement distance of the outer mesh B7 are both larger than the arrangement distance of the middle mesh 6, or the diameter of the outer mesh A5 and the diameter of the outer mesh B7 are both smaller than the diameter of the middle mesh 6.
Further, it is preferred that the width of the outer region A1 and the width of the outer region B3 are both less than the width of the central region 2. The outer region a1 has a width equal to the width of the outer region B3.
In addition, the outer mesh a5, the middle mesh 6, and the outer mesh B7 are arranged in parallel with each other along the axial direction of the central water collecting pipe 4. The outer mesh a5, the middle mesh 6 and the outer mesh B7 are arranged in parallel with each other in a tangential direction of the outer circumferential surface of the central collector pipe 4. The arrangement pitch of the outer side mesh A5 is equal to the arrangement pitch of the outer side mesh B7. The diameter of the outer mesh A5 is equal to the diameter of the outer mesh B7.
Further, the outer mesh A5, the middle mesh 6 and the outer mesh B7 are arranged according to the following rule that the arrangement distance of the outer mesh A5 and the arrangement distance of the outer mesh B7 are both larger than the arrangement distance of the middle mesh 6, and the diameter of the outer mesh A5 and the diameter of the outer mesh B7 are both smaller than the diameter of the middle mesh 6.
Further, a part of the outer mesh a5, the middle mesh 6, and the outer mesh B7 are arranged in parallel with each other along the axial direction of the central water collecting pipe 4, and another part of the outer mesh a5, the middle mesh 6, and the outer mesh B7 are arranged in parallel with each other along the tangential direction of the outer circumferential surface of the central water collecting pipe 4.
By adopting the technical scheme of the invention, the strength and the bearing capacity of a central area corresponding to a central water collecting pipe on the water production separation net are enhanced by optimizing a plurality of separation net wires forming the water production separation net, compared with the prior art, the roll-type membrane element can be suitable for running under a high-pressure environment under the condition of ensuring the existing flux, the high-pressure resistance of the roll-type membrane element is enhanced, and the water production resistance of the water-doped separation net is reduced.
Example 1:
as shown in fig. 1, after the water production separation net provided by the invention is unfolded, the water production separation net is a net structure woven by a plurality of separation net wires, wherein, longitudinal net wires are arranged along the axial direction of the central water collecting pipe, transverse net wires are arranged along the tangential direction of the outer circumference of the central water collecting pipe, the longitudinal net wires are arranged at the same interval, and the diameters of the longitudinal net wires are the same; the transverse net wires are arranged at different intervals in the outer side area A1, the middle area 2 and the outer side area B3 respectively, the arrangement interval of the outer side net wires A5 and the arrangement interval of the outer side net wires B7 are both larger than the arrangement interval of the middle net wires 6, the arrangement interval of the outer side net wires A5 and the arrangement interval of the outer side net wires B7 can be equal or unequal, and the width of the corresponding outer side area A1 and the width of the corresponding outer side area B3 are both smaller than the width of the middle area 2. The outer region a1 may or may not have the same width as the outer region B3.
Example 2:
as shown in fig. 2, after the water production separation net provided by the invention is unfolded, the water production separation net is a net structure woven by a plurality of separation net wires, wherein, longitudinal net wires are arranged along the axial direction of the central water collecting pipe, transverse net wires are arranged along the tangential direction of the outer circumference of the central water collecting pipe, the longitudinal net wires are arranged at the same interval, and the diameters of the net wires are the same; the lateral zones a1, the middle zone 2 and the lateral zone B3 are respectively arranged with transverse mesh wires with different wire diameters, wherein the wire diameter of the lateral mesh wire a5 and the wire diameter of the lateral mesh wire B7 are both smaller than the wire diameter of the middle mesh wire 6, the wire diameter of the lateral mesh wire a5 and the wire diameter of the lateral mesh wire B7 are both equal or unequal, and the width of the corresponding lateral zone a1 and the width of the lateral zone B3 are both smaller than the width of the middle zone 2. The outer region a1 may or may not have the same width as the outer region B3.
Example 3:
as shown in fig. 3, after the water production separation net provided by the invention is unfolded, the water production separation net is a net structure woven by a plurality of separation net wires, wherein, longitudinal net wires are arranged along the axial direction of the central water collecting pipe, transverse net wires are arranged along the tangential direction of the outer circumference of the central water collecting pipe, the transverse net wires are arranged at the same interval, and the diameters of the net wires are the same; the longitudinal mesh wires are respectively arranged in the outer side area A1, the middle area 2 and the outer side area B3 at different intervals, the arrangement interval of the outer side mesh wires A5 and the arrangement interval of the outer side mesh wires B7 are both larger than the arrangement interval of the middle mesh wires 6, the arrangement interval of the outer side mesh wires A5 and the arrangement interval of the outer side mesh wires B7 can be equal or unequal, and the width of the corresponding outer side area A1 and the width of the corresponding outer side area B3 are both smaller than the width of the middle area 2. The outer region a1 may or may not have the same width as the outer region B3.
Example 4:
as shown in fig. 4, after the water production separation net provided by the invention is unfolded, the water production separation net is a net structure woven by a plurality of separation net wires, wherein, longitudinal net wires are arranged along the axial direction of the central water collecting pipe, transverse net wires are arranged along the tangential direction of the outer circumference of the central water collecting pipe, the longitudinal net wires are arranged at the same interval, and the diameters of the net wires are the same; longitudinal meshes with different diameters are respectively arranged in the outer area A1, the middle area 2 and the outer area B3, wherein the diameters of the outer mesh A5 and the outer mesh B7 are both smaller than the diameter of the middle mesh 6, the diameters of the outer mesh A5 and the outer mesh B7 are either equal or unequal, and the width of the corresponding outer area A1 and the width of the corresponding outer area B3 are both smaller than the width of the middle area 2. The outer region a1 may or may not have the same width as the outer region B3.
Claims (6)
1. The utility model provides a roll formula membrane element produces water and separates net which characterized in that: the water production separation net of the roll-type membrane element is used for being wound on a central water collecting pipe (4) in the roll-type membrane element, the water production separation net of the roll-type membrane element comprises a plurality of separation net wires (8), the separation net wires (8) are arranged along at least two directions and are woven together, when the water production separation net of the roll-type membrane element is unfolded, the water production separation net of the roll-type membrane element is divided into an outer side area A (1), a middle area (2) and an outer side area B (3) along the axial direction of the central water collecting pipe (4) or the circumferential direction of the central water collecting pipe, the separation net wires (8) arranged in the outer side area A (1), the middle area (2) and the outer side area B (3) are respectively and correspondingly called as an outer side net wire A (5), a middle net wire (6) and an outer side net wire B (7), and the outer side net wires A (5), the middle net wire (6) and the outer side wire B (7) are arranged in parallel with each other or arranged in parallel with each other along the axial direction of the central water collecting pipe (4) The outer net wires A (5), the middle net wires (6) and the outer net wires B (7) are arranged according to the following rules: the arrangement distance of the outer side net wires A (5) and the arrangement distance of the outer side net wires B (7) are both larger than the arrangement distance of the middle net wires (6), and the wire diameters of the outer side net wires A (5) and the outer side net wires B (7) are both smaller than the wire diameters of the middle net wires (6).
2. The roll-type membrane element-producing water barrier net of claim 1, wherein: the width of the outer area A (1) and the width of the outer area B (3) are both smaller than the width of the middle area (2).
3. The roll-type membrane element-producing water barrier net of claim 1, wherein: the outer region A (1) has a width equal to the width of the outer region B (3).
4. The roll-type membrane element-producing water barrier net of claim 1, wherein: the arrangement space of the outer side mesh wires A (5) is equal to that of the outer side mesh wires B (7).
5. The roll-type membrane element-producing water barrier net of claim 1, wherein: the diameter of the outer side net wire A (5) is equal to that of the outer side net wire B (7).
6. The roll-type membrane element-producing water barrier net of claim 1, wherein: and one part of the outer side mesh wires A (5), the middle mesh wires (6) and the outer side mesh wires B (7) are arranged in parallel with each other along the axial direction of the central water collecting pipe (4), and the other part of the outer side mesh wires A (5), the middle mesh wires (6) and the outer side mesh wires B (7) are arranged in parallel with each other along the tangential direction of the outer peripheral surface of the central water collecting pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318464.6A CN110975631B (en) | 2019-12-19 | 2019-12-19 | Roll type membrane element water production separation net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318464.6A CN110975631B (en) | 2019-12-19 | 2019-12-19 | Roll type membrane element water production separation net |
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| Publication Number | Publication Date |
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| CN110975631A CN110975631A (en) | 2020-04-10 |
| CN110975631B true CN110975631B (en) | 2021-12-17 |
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| CN201911318464.6A Active CN110975631B (en) | 2019-12-19 | 2019-12-19 | Roll type membrane element water production separation net |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012061419A (en) * | 2010-09-16 | 2012-03-29 | Hitachi Ltd | Water separation 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 |
| CN105347413A (en) * | 2015-11-26 | 2016-02-24 | 清华大学 | Plate-type hydrophobic polymer double-effect MVR (Mechanical Vapor Recompression) system and wastewater concentration method |
| CN207815732U (en) * | 2017-09-11 | 2018-09-04 | 江苏戎装科技有限公司 | A kind of Teat pump boiler plastic cistern |
| CN109012205A (en) * | 2018-08-23 | 2018-12-18 | 山东九章膜技术有限公司 | A kind of production water filter, method for coiling and reverse-osmosis membrane element |
| CN209188209U (en) * | 2018-08-09 | 2019-08-02 | 珠海格力电器股份有限公司 | A kind of water inlet filter, reverse-osmosis membrane element and water purifier |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10023481B2 (en) * | 2014-10-17 | 2018-07-17 | Clemson University | Materials and methods for reducing biofouling in water treatment membrane systems |
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2019
- 2019-12-19 CN CN201911318464.6A patent/CN110975631B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012061419A (en) * | 2010-09-16 | 2012-03-29 | Hitachi Ltd | Water separation 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 |
| CN105347413A (en) * | 2015-11-26 | 2016-02-24 | 清华大学 | Plate-type hydrophobic polymer double-effect MVR (Mechanical Vapor Recompression) system and wastewater concentration method |
| CN207815732U (en) * | 2017-09-11 | 2018-09-04 | 江苏戎装科技有限公司 | A kind of Teat pump boiler plastic cistern |
| CN209188209U (en) * | 2018-08-09 | 2019-08-02 | 珠海格力电器股份有限公司 | A kind of water inlet filter, reverse-osmosis membrane element and water purifier |
| CN109012205A (en) * | 2018-08-23 | 2018-12-18 | 山东九章膜技术有限公司 | A kind of production water filter, method for coiling and reverse-osmosis membrane element |
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