CN101306270A - Production method of foldable filter element with high filtration flux - Google Patents
Production method of foldable filter element with high filtration flux Download PDFInfo
- Publication number
- CN101306270A CN101306270A CNA2008101382614A CN200810138261A CN101306270A CN 101306270 A CN101306270 A CN 101306270A CN A2008101382614 A CNA2008101382614 A CN A2008101382614A CN 200810138261 A CN200810138261 A CN 200810138261A CN 101306270 A CN101306270 A CN 101306270A
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- filter film
- filter
- filter membrane
- filtration flux
- filter element
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Abstract
The invention provides a production method of a high filtration flux folded filter core, and belongs to the technology field of water treatment. The production method comprises the following steps: a layer of elastic supporting grid is respectively attached to the two side surfaces of a plate type filter film, a folding machine is used for folding the filter film into an arc-shaped filter film, the both ends of the filter film are bonded together to form a shape of cylinder, an inner layer of stainless steel net and an outer layer of stainless steel net are used for reinforcing and shaping the filter film, a filter core fixed seal is finally used for sealing and fixing the top end and the bottom end of the cylindrical filter film, thereby making the cylindrical folded filter core. The elastic roles of the supporting grids can fold the filter film into the shape of arc, thereby avoiding dead angles caused by the prior folding shape and greatly increasing the filtration flux of the filter film.
Description
Technical field:
The present invention relates to a kind of water treatment facilities, especially have the preparation method of the foldable filter element of high filtration flux.
Background technology:
At present, the filter core that is used for water treatment both at home and abroad mostly is folding cylindrical filter cartridge, can be divided into polymeric membrane filter core and metal film filter core etc. according to the filter core material.Wherein the collapsed shape of foldable filter element has: pleat shape, W are corrugated, zigzag, corrugation shape etc., and common ground is all to have angular structures.The problem that the foldable filter element of these shapes in use exists is: filter core is when carrying out water treatment for a long time, and pollutant can accumulate in the angle folding place of filter membrane, makes the easy pollution of filter membrane and causes filtration flux to descend; These collapsed shape of filter membrane can make its effective filtration area reduce rapidly along with the pollution of film, and this is the another reason that causes filtration flux to descend; The filter membrane DeGrain that carries out backwash after polluting simultaneously, filter membrane flux recovery rate reduces, and reduces filter core service life, causes the increase of its cost of use.
Summary of the invention:
Technical problem to be solved by this invention provides a kind of preparation method of foldable filter element with high filtration flux.
The technical scheme that the present invention is adopted for its technical problem of solution comprises:
The size of board-like filter membrane by actual requirement of engineering cut, and adhere to one deck resiliency supported grid respectively (normal-temperature water is filtered with glass cross and is made to support grid in the two sides of filter membrane; Be higher than 30 ℃ and then make to support grid) with nylon wire, again it is together put into folding machine and be folded into circular shape, and with the filter membrane two ends that fold be bonded together form cylindric, inside and outside both sides with the filter membrane that folds reinforce with the stainless (steel) wire typing of corresponding size respectively again, with the filter core fixed seal head columned filter membrane top and bottom end seal are fixed at last, made the foldable filter element of drum type brake.
Owing to respectively adhere to one deck resiliency supported grid in the two sides of filter membrane, and the elastic reaction that supports grid can make filter membrane be folded into circular shape, and the dead angle of having avoided traditional collapsed shape to cause has increased the effective filtration area of filter membrane greatly.
Description of drawings:
Fig. 1 is the filter cartridge construction schematic diagram according to preparation method provided by the present invention folded.
Fig. 2 is the profile according to the filter core that preparation method provided by the present invention folded.
Among the figure: 1-filter core fixed seal head, 2-internal layer stainless (steel) wire, 3-folds filter membrane, the outer stainless (steel) wire of 4-.
The specific embodiment:
For further describing technical scheme of the present invention, elaborate below in conjunction with Figure of description and embodiment.
The present invention adheres to one deck resiliency supported grid respectively in the both sides up and down of board-like filter membrane, with folding machine it is folded into circular-arc folding filter membrane 3, the two ends that will fold filter membrane again be bonded together form cylindric, to fold filter membrane 3 with internal layer stainless (steel) wire 2 and outer stainless (steel) wire 4 and add fixed, with filter core fixed seal head 1 columned folding filter membrane 3 tops and bottom end seal are fixed at last, made the foldable filter element of drum type brake as shown in Figure 1.If filtering with glass cross, normal-temperature water makes to support grid; If water temperature is higher than 30 ℃ then do to support grid with nylon wire.Can make filter membrane be folded into circular shape owing to support the elastic reaction of grid, the dead angle of having avoided prior folding shape to cause has increased the filtration flux of filter membrane greatly.Under the same material situation, its filtration flux improves nearly 30 times than the corrugated filter membrane of W.Filter membrane can be macromolecular filter membrane, metal filtration film etc., also can be micro-filtration membrane, milipore filter or NF membrane etc.
The advantage that the present invention has:
1, have higher filtration flux, higher effective filtration area, face is difficult for retaining pollutant and higher The advantages such as mechanical strength.
2, because this foldable filter element is folded into circular shape to filter membrane, can reduce to a great extent pollutant at film The gathering of face strengthens the contamination resistance of filter core.
3, the characteristics of circular shape and prior folding shape maximum are that there is not the dead angle structure in its surface, greatly carries High effective filtration area and the filtration flux of filter membrane.
4, this foldable filter element backwash cycle long, favorable regeneration effect has improved filter core service life.
Claims (3)
1. the preparation method of a foldable filter element with high filtration flux, it is characterized in that may further comprise the steps: two sides at filter membrane are adhered to one deck resiliency supported grid respectively, put it into again and be folded into circular shape in the folding machine, and with the filter membrane two ends that fold be bonded together form cylindric, inside and outside both sides with the filter membrane that folds reinforce with the stainless (steel) wire typing of corresponding size respectively at last, make the foldable filter element of drum type brake.
2. a kind of foldable filter element with high filtration flux according to claim 1 is characterized in that said resiliency supported grid, makes to support grid with glass cross when normal-temperature water is filtered, and filters when water temperature is higher than 30 ℃ and then makes to support grid with nylon wire.
3. a kind of foldable filter element with high filtration flux according to claim 1 is characterized in that: filter membrane can be macromolecular material filter membrane or metal filtration film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101382614A CN101306270A (en) | 2008-07-06 | 2008-07-06 | Production method of foldable filter element with high filtration flux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101382614A CN101306270A (en) | 2008-07-06 | 2008-07-06 | Production method of foldable filter element with high filtration flux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101306270A true CN101306270A (en) | 2008-11-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101382614A Pending CN101306270A (en) | 2008-07-06 | 2008-07-06 | Production method of foldable filter element with high filtration flux |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101306270A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188848A (en) * | 2010-03-11 | 2011-09-21 | 浙江瑞普环境技术有限公司 | High-flux high-dirt-holding-capacity filtering element and preparation method thereof |
| CN109675371A (en) * | 2018-12-07 | 2019-04-26 | 辽宁天泽产业集团大庆天泽有限公司 | A kind of big flow reuse filter core and its mating cleaning processing equipment and operating method |
| CN113509843A (en) * | 2021-08-05 | 2021-10-19 | 李金城 | Production process of cascade multilayer efficient composite membrane folding filter element |
| CN114470973A (en) * | 2022-02-23 | 2022-05-13 | 河南核净洁净技术有限公司 | High-temperature-resistant metal pipe filter element and manufacturing method thereof |
-
2008
- 2008-07-06 CN CNA2008101382614A patent/CN101306270A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188848A (en) * | 2010-03-11 | 2011-09-21 | 浙江瑞普环境技术有限公司 | High-flux high-dirt-holding-capacity filtering element and preparation method thereof |
| CN109675371A (en) * | 2018-12-07 | 2019-04-26 | 辽宁天泽产业集团大庆天泽有限公司 | A kind of big flow reuse filter core and its mating cleaning processing equipment and operating method |
| CN113509843A (en) * | 2021-08-05 | 2021-10-19 | 李金城 | Production process of cascade multilayer efficient composite membrane folding filter element |
| CN114470973A (en) * | 2022-02-23 | 2022-05-13 | 河南核净洁净技术有限公司 | High-temperature-resistant metal pipe filter element and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081119 |