CN116575180A - Woven water inlet grid and weaving process thereof - Google Patents
Woven water inlet grid and weaving process thereof Download PDFInfo
- Publication number
- CN116575180A CN116575180A CN202310711224.2A CN202310711224A CN116575180A CN 116575180 A CN116575180 A CN 116575180A CN 202310711224 A CN202310711224 A CN 202310711224A CN 116575180 A CN116575180 A CN 116575180A
- Authority
- CN
- China
- Prior art keywords
- grid
- water inlet
- water
- weft
- warp
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009941 weaving Methods 0.000 title claims abstract description 26
- 230000008569 process Effects 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 229920002994 synthetic fiber Polymers 0.000 claims description 5
- 239000012209 synthetic fiber Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims 2
- 239000012528 membrane Substances 0.000 abstract description 21
- 238000009954 braiding Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 238000010612 desalination reaction Methods 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229920006052 Chinlon® Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- HGINCPLSRVDWNT-UHFFFAOYSA-N acrylaldehyde Natural products C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/06—Braid or lace serving particular purposes
-
- 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
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
Abstract
The invention relates to the technical field of membrane separation, in particular to a woven water inlet grid and a weaving process thereof. The water inlet grid formed by braiding is formed by the grid body manufactured by adopting the braiding process and the staggered warps and wefts, and the warps and the wefts are flexible, so that bulges at the intersections of the warps and the wefts are extremely small, membrane damage caused by stress interference on the membrane is avoided, and meanwhile, a plurality of naturally formed hole-shaped gaps exist on the warps and the wefts by adopting the braiding process, so that the front end and the rear end of the water inlet grid have the same and stable water inlet pressure during actual use, and the water treatment efficiency is improved.
Description
Technical Field
The invention relates to the technical field of membrane separation, in particular to a woven water inlet grid and a weaving process thereof.
Background
The membrane technology is widely applied in the fields of water treatment and the like, a reverse osmosis membrane element commonly used in a water purifier or an industrial treatment system in the market at present generally comprises a water inlet grid, a membrane and a water production separation grid, wherein the water inlet grid is arranged on the inner side of the membrane, namely the water inlet side of the water purifier, the existing water inlet grid is manufactured by adopting an injection molding process, injection molding bulges are arranged at the intersection of net wires of the water inlet grid, and after the water inlet grid is tightly wound, the bulges can damage the surface of the membrane, so that the performance of the membrane is influenced, and the existing water inlet grid has low strength, short service life and no high temperature resistance.
Therefore, it is desirable to provide a water inlet grid that avoids damaging the membrane.
Disclosure of Invention
The invention provides a water inlet grid formed by braiding and a braiding process thereof, which aim to solve the technical problems in the background technology.
In a first aspect, the present invention provides a woven water intake mesh comprising: a grid body woven by a plurality of staggered warps and wefts; a plurality of water outlet grids are arranged on the grid body; wherein the water outlet grid is formed by surrounding adjacent warps and adjacent wefts.
In a second aspect, the present invention provides a process for manufacturing a woven water intake grid as described above, comprising: weaving warp yarn with fineness of 1-1000D and weft yarn with fineness of 1-1000D respectively; and weaving the warp and the weft which are woven into the grid body.
The water inlet grid formed by weaving has the beneficial effects that the grid body is made by adopting the weaving process, and is made by staggered warps and wefts, and the warps and the wefts are flexible by adopting the weaving process, so that bulges at the intersections of the warps and the wefts are extremely small, the damage to the membrane caused by the stress collision of the membrane is avoided, and meanwhile, a plurality of naturally formed hole-shaped gaps exist between the warps and the wefts by adopting the weaving process, so that the front end and the rear end of the water inlet grid have the same and stable water inlet pressure during actual use, and the water treatment efficiency is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of a woven water intake grid of the present invention;
FIG. 2 is an enlarged partial schematic view of a woven water intake grid of the present invention;
fig. 3 is a schematic view of a prior art water intake grid.
In the figure:
the grid body 1, warp 2, weft 3, hole-shaped gaps 4, water outlet grids 5 and bulges 6.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 and 2, this embodiment provides a woven water inlet mesh, including: a grid body 1 woven by a plurality of staggered warps 2 and wefts 3; a plurality of water outlet grids 5 are arranged on the grid body 1; wherein the water outlet grid 5 is formed by surrounding adjacent warps 2 and adjacent wefts 3.
In this embodiment, the mesh body 1 made by adopting the weaving process is made by interlacing the warp 2 and the weft 3, and the warp 2 and the weft 3 have flexibility due to the weaving process, so that the stacking protrusions existing at the intersection of the warp 2 and the weft 3 are extremely small compared with the water inlet mesh made by adopting the injection molding process in the prior art, thereby avoiding damage to the membrane caused by stress interference of the membrane, and simultaneously, the weaving process is adopted to enable a plurality of naturally formed porous gaps 4 to exist on the warp 2 and the weft 3, so that the front end and the rear end of the water inlet mesh have the same and stable water inlet pressure during actual use, and the water treatment efficiency is improved.
In this embodiment, the cross-sectional shape of the water inlet mesh 5 is polygonal. Preferably, in this embodiment, the cross-section of the water outlet grid 5 is diamond, and the obtuse angle end is a water inlet angle.
In this embodiment, when the water inlet grid is in actual use, the water inlet angle is different, so that the water inlet angle is larger, the water inlet resistance is smaller, and the water inlet flux and the water inlet pressure are determined by the water flow resistance, so that the water outlet grid 5 with the diamond cross section is formed by weaving, and raw water enters from the obtuse angle end of the water outlet grid, so that the water inlet pressure is reduced.
In this embodiment, because the water inlet grid is used in cooperation with the water pipe and the membrane, the water purifying principle is as follows: the center of the water pipe is a hollow water cavity, a plurality of water passing holes distributed along the length direction of the water pipe are formed in the side wall, the outer wall of the water pipe is sequentially wound and coated with a water inlet grid, a membrane and a water production isolation net, when the water pipe is used, raw water enters from one end of the water pipe, and after penetrating through the water inlet grid, the membrane and the water production isolation net, product water flows into the water pipe through the water holes, so that the water purification effect is achieved.
In the prior art, the water inlet grid is generally adopted in an injection molding process, so that when raw water just enters, the water inlet end is the side wall of the grid, but no water inlet channel is arranged on the side wall, water flow needs to be extruded into the grid under a large pressure, the water pressure at the inlet is large, the water pressure at the rear end of the water inlet grid is reduced along with the continuous purification and flowing of raw water, and the pressure at the front end and the rear end of the water inlet grid is inconsistent, so that the front end is excessively treated, the treatment capacity at the rear end is insufficient, and the grid is easily damaged due to the high water pressure.
In this embodiment, the warp 2 and the weft 3 are both made by knitting, so that a plurality of hole gaps 4 exist on the warp 2 and the weft 3, and water flows not only through the water inlet grid but also through the hole gaps 4, so that the pressures at the front end and the rear end are nearly consistent, the attenuation rate of water flow is reduced, and the desalination rate of the membrane is improved.
In this embodiment, the warp threads 2 and the weft threads 3 are made of chemical synthetic fibers.
Preferably, the chemical synthetic fibers include, but are not limited to, those employing: one or more of terylene, chinlon, acrylon, polyvinyl chloride, vinylon, polyolefin, polypropylene and polyester fibers.
As shown in table 1, preferably, the sub-yarn made of polyester with fineness of 50D is selected, and when the water inlet grid with the grid diameter of 2mm and the grid body thickness of 0.25mm is obtained by weaving, the initial flux of the water inlet grid under the new water effect reaches 938GFD, the service life flux under the new water effect reaches 826GFD, and all the requirements of industry are met.
Meanwhile, the initial desalination rate under the new water effect reaches 92.75%, and the service life desalination rate under the new water effect reaches 96.70%. Compared with the traditional extrusion process, the initial desalination rate of the water inlet grid with the same type of thickness under the new water effect is only 90.62 percent, and the service life desalination rate under the new water effect is only 95.56 percent, so that the method has remarkable improvement.
In addition, the service life attenuation rate of the water inlet grid manufactured by adopting the weaving process is 10.69% under the new water effect, which is lower than 10.71% of that of the water inlet grid manufactured by adopting the existing extrusion process. Has longer service life.
TABLE 1
In another aspect, the present invention also provides a process for manufacturing the woven water inlet mesh, including: weaving warp yarn 2 with a coiled titer of 1-1000D and weft yarn 3 with a titer of 1-1000D respectively; the woven warp 2 and weft 3 are woven into a grid body 1.
In this embodiment, the grid body 1 is provided with a plurality of water outlet grids 5; wherein the water outlet grid 5 is formed by surrounding adjacent warps 2 and adjacent wefts 3; the cross section of the water outlet grid 5 is diamond-shaped, and the obtuse angle end of the water outlet grid is a water inlet angle; the warp threads 2 are formed by weaving a plurality of sub-warp threads 2; the weft yarns 3 are woven by a plurality of sub-weft yarns 3; wherein, a plurality of hole-shaped gaps 4 are arranged on the warp threads 2 and the weft threads 3; the warp threads 2 and the weft threads 3 are made of chemical synthetic fibers.
In summary, the mesh body 1 is made by the weaving process and is made by the staggered warp threads 2 and weft threads 3, and the warp threads 2 and the weft threads 3 are flexible, so that the bulges 6 at the intersections of the warp threads 2 and the weft threads 3 are extremely small, the damage to the membrane caused by the stress collision of the membrane is avoided, and meanwhile, a plurality of naturally formed hole-shaped gaps 4 are formed in the warp threads 2 and the weft threads 3 by the weaving process, so that the front end and the rear end of the mesh have the same and stable water inlet pressure during actual use, and the water treatment efficiency is improved.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. A woven water inlet mesh, comprising:
a grid body woven by a plurality of staggered warps and wefts;
a plurality of water outlet grids are arranged on the grid body; wherein the method comprises the steps of
The water outlet grid is formed by winding and enclosing adjacent warps and adjacent wefts.
2. The water inlet grid according to claim 1, wherein,
the cross section of the water outlet grid is polygonal.
3. The water inlet grid according to claim 2, wherein,
the cross section of the water outlet grid is diamond-shaped.
4. The water inlet grid according to claim 1, wherein,
the warp is formed by weaving a plurality of child warp yarns;
the weft is formed by weaving a plurality of sub-weft yarns; wherein the method comprises the steps of
And a plurality of hole-shaped gaps are arranged on the warp and the weft.
5. The water inlet grid according to claim 1, wherein,
the warp and the weft are made of chemical synthetic fibers.
6. A process for manufacturing a woven water intake grid according to any one of claims 1 to 5, comprising:
weaving warp yarn with fineness of 1-1000D and weft yarn with fineness of 1-1000D respectively;
and weaving the warp and the weft which are woven into the grid body.
7. The process of claim 6, wherein,
a plurality of water outlet grids are arranged on the grid body; wherein the method comprises the steps of
The water outlet grid is formed by winding and enclosing adjacent warps and adjacent wefts.
8. The process of claim 7, wherein,
the cross section of the water outlet grid is diamond-shaped, and the obtuse angle end of the water outlet grid is a water inlet angle.
9. The process of claim 8, wherein,
the warp is formed by weaving a plurality of child warp yarns;
the weft is formed by weaving a plurality of sub-weft yarns; wherein the method comprises the steps of
And a plurality of hole-shaped gaps are arranged on the warp and the weft.
10. The process of claim 9, wherein,
the warp and the weft are made of chemical synthetic fibers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320911269 | 2023-04-21 | ||
| CN202320911269X | 2023-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116575180A true CN116575180A (en) | 2023-08-11 |
Family
ID=87541542
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310711224.2A Pending CN116575180A (en) | 2023-04-21 | 2023-06-15 | Woven water inlet grid and weaving process thereof |
| CN202321530333.6U Active CN220318103U (en) | 2023-04-21 | 2023-06-15 | Water inlet grid for reverse osmosis membrane element |
| CN202321530348.2U Active CN220413673U (en) | 2023-04-21 | 2023-06-15 | Woven water inlet grid |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321530333.6U Active CN220318103U (en) | 2023-04-21 | 2023-06-15 | Water inlet grid for reverse osmosis membrane element |
| CN202321530348.2U Active CN220413673U (en) | 2023-04-21 | 2023-06-15 | Woven water inlet grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN116575180A (en) |
-
2023
- 2023-06-15 CN CN202310711224.2A patent/CN116575180A/en active Pending
- 2023-06-15 CN CN202321530333.6U patent/CN220318103U/en active Active
- 2023-06-15 CN CN202321530348.2U patent/CN220413673U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN220318103U (en) | 2024-01-09 |
| CN220413673U (en) | 2024-01-30 |
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