CN105268323A - Multi-membrane leaf roll type membrane element and manufacturing method thereof - Google Patents
Multi-membrane leaf roll type membrane element and manufacturing method thereof Download PDFInfo
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- CN105268323A CN105268323A CN201510718721.0A CN201510718721A CN105268323A CN 105268323 A CN105268323 A CN 105268323A CN 201510718721 A CN201510718721 A CN 201510718721A CN 105268323 A CN105268323 A CN 105268323A
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Abstract
The invention discloses a multi-membrane leaf roll type membrane element and a manufacturing method thereof. The multi-membrane leaf roll type membrane element comprises a center pipe, a plurality of first pure water guide nets and reverse osmosis membrane components, wherein the first pure water guide nets are sequentially arranged in a staggering and laminating way and are connected; one end of the first first pure water guide net is connected with the center pipe; the second first pure water guide net and the first first pure water guide net are arranged in a laminating way and are staggered for a first preset distance; one end of each of the other pure water guide nets is connected with the front corresponding first pure water guide net according to a second preset distance; a layer of reverse osmosis membrane component is arranged between every two adjacent first pure water guide nets. Due to the fact that while the number of membrane leaves is changed, the center pipe is not required to be switched to manufacture the multi-membrane leaf roll type membrane element, and one pipe has multiple functions, so the strength of the center pipe is guaranteed, and a rolling process is simplified.
Description
Technical field
The present invention relates to water-treatment technology field, in particular to a kind of multimembrane leaf wound membrane element and manufacture method thereof.
Background technology
Application number is in the Chinese utility model patent of 201420034797.2, proposes a kind of multimembrane leaf roll counter-infiltration filter core, comprising: central tube, pure water flow-guiding screen, counter-infiltration diaphragm and condensed water flow-guiding screen (i.e. dense water flow-guiding screen).Wherein, pure water flow-guiding screen has multiple and to be eachly all connected with central tube, and corresponding central tube is different from the existing center tube structure in market, its sidewall has many rows be suitable for the through hole of pure water turnover, and is connected with pure water flow-guiding cloth between every two rows.
Technical scheme in this utility model patent, has following shortcoming: (1) central tube sidewall offers many exhausting holes, compared with the double through-hole structure of existing central tube, reduces the intensity of central tube; (2) every layer of pure water flow-guiding cloth is all directly connected with central tube and is evenly distributed, and makes rolling technology more complicated; (3) the membrane component needs correspondence preparing the different film number of sheets uses different central tubes, such as, the center tube structure that the membrane component rolling three leaf films and the membrane component rolling four leaf films need is different, containing three exhausting holes on the former central tube, the latter needs four exhausting holes, so central tube needs constantly to switch according to the film number of sheets.
Summary of the invention
A kind of multimembrane leaf wound membrane element and manufacture method thereof are provided in the embodiment of the present invention, need constantly to switch and the problem that central tube intensity is low, rolling technology is complicated according to the film number of sheets to solve central tube in prior art.
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of multimembrane leaf wound membrane element, comprising: central tube; First pure water flow-guiding screen of multiple stagger successively stacked setting connection, one end of first described first pure water flow-guiding screen is connected with described central tube, second described first pure water flow-guiding screen and first described first pure water flow-guiding screen stagger the first preset distance arranged stacked, and one end of the first pure water flow-guiding screen described in all the other connects by the previous first pure water flow-guiding screen that the second preset distance is corresponding separately to it respectively; Reverse osmosis membrane chip module, is respectively arranged with reverse osmosis membrane chip module described in one deck between adjacent two described first pure water flow-guiding screens.
As preferably, described reverse osmosis membrane chip module comprises the first counter-infiltration diaphragm be cascading, dense water flow-guiding screen and the second counter-infiltration diaphragm.
As preferably, described first counter-infiltration diaphragm and described second counter-infiltration diaphragm are one whole counter-infiltration diaphragm, and the part after the doubling of described one whole counter-infiltration diaphragm forms described first counter-infiltration diaphragm, remainder forms described second counter-infiltration diaphragm.
As preferably, the length of described first counter-infiltration diaphragm is greater than the length of described dense water flow-guiding screen, and the length of described dense water flow-guiding screen is greater than the length of described second counter-infiltration diaphragm.
As preferably, described second preset distance is:
d＝(π·r)/n
Wherein, d is described preset distance, and the maximum gauge formed when first described first pure water flow-guiding screen that r is described first preset distance is wrapped on described central tube, n is the film number of sheets.
As preferably, the difference of the length of described first counter-infiltration diaphragm and described first counter-infiltration diaphragm is:
d＝(π·r)/n
Wherein, d is the difference of described length, and the maximum gauge formed when first described first pure water flow-guiding screen that r is described first preset distance is wrapped on described central tube, n is the film number of sheets.
As preferably, described multimembrane leaf wound membrane element also comprises the second pure water flow-guiding screen, the length of described second pure water flow-guiding screen is the half of the length of described first pure water flow-guiding screen, one end of described second pure water flow-guiding screen is connected with the first pure water flow-guiding screen described in last, described second pure water flow-guiding screen and arrange one deck reverse osmosis membrane chip module between the first pure water flow-guiding screen described in last.
As preferably, described second pure water flow-guiding screen the side of the first pure water flow-guiding screen described in last is provided with one deck reverse osmosis membrane chip module.
As preferably, described multiple first pure water flow-guiding screen is wound on described central tube.
As preferably, described central tube is provided with the water inlet duct that multiple size is identical.
Present invention also offers a kind of manufacture method of multimembrane leaf wound membrane element, comprising: the first pure water flow-guiding screen that multiple stagger successively stacked setting connection are provided; One end of first the first pure water flow-guiding screen is connected with central tube; Stagger described one end of the first pure water flow-guiding screen that is described relative to first for one end of second described first pure water flow-guiding screen the first preset distance; One end of all the other multiple described first pure water flow-guiding screens is connected by the previous first pure water flow-guiding screen that the second preset distance is corresponding separately to it respectively; Between adjacent two described first pure water flow-guiding screens, reverse osmosis membrane chip module described in one deck is set respectively.
As preferably, described method also comprises: the first counter-infiltration diaphragm, dense water flow-guiding screen and the second counter-infiltration diaphragm are cascading to form described reverse osmosis membrane chip module.
As preferably, by the doubling of one whole counter-infiltration diaphragm, to make, the part of described one whole counter-infiltration diaphragm after doubling forms described first counter-infiltration diaphragm, remainder forms described second counter-infiltration diaphragm.
As preferably, described method also comprises: make the length of described first counter-infiltration diaphragm be greater than the length of described dense water flow-guiding screen, and makes the length of described dense water flow-guiding screen be greater than the length of described second counter-infiltration diaphragm.
As preferably, described second preset distance is:
d＝(π·r)/n
Wherein, d is described preset distance, and the maximum gauge formed when first described first pure water flow-guiding screen that r is described first preset distance is wrapped on described central tube, n is the film number of sheets.
As preferably, the difference of the length of described first counter-infiltration diaphragm and described first counter-infiltration diaphragm is:
d＝(π·r)/n
Wherein, d is the difference of described length, and the maximum gauge formed when first described first pure water flow-guiding screen that r is described first preset distance is wrapped on described central tube, n is the film number of sheets.
As preferably, described method also comprises: be connected with the first pure water flow-guiding screen described in last second pure water flow-guiding screen one end, and the length of wherein said second pure water flow-guiding screen is the half of the length of described first pure water flow-guiding screen; At described second pure water flow-guiding screen and described in last, between the first pure water flow-guiding screen, one deck reverse osmosis membrane chip module is set.
As preferably, described method also comprises: arrange one deck reverse osmosis membrane chip module at described second pure water flow-guiding screen away from the side of the first pure water flow-guiding screen described in last.
As preferably, described method also comprises: be wound on described central tube by described multiple first pure water flow-guiding screen.
Technical scheme of the present invention realizes the preparation of multimembrane leaf reverse-osmosis membrane element while changing the film number of sheets without the need to main dispatching centre pipe, thus achieves one tube multipurpose, not only ensure that the intensity of central tube, and simplifies rolling technology.
Accompanying drawing explanation
Fig. 1 is that the pure water flow-guiding screen of the multimembrane leaf wound membrane element of one embodiment of the invention arranges schematic diagram;
Fig. 2 is that the pure water flow-guiding screen of the multimembrane leaf wound membrane element of another embodiment of the present invention arranges schematic diagram;
Fig. 3 is the structural representation of the reverse osmosis membrane chip module in the present invention.
Description of reference numerals:
1, central tube; 2, the first pure water flow-guiding screen; 3, reverse osmosis membrane chip module; 4, the first counter-infiltration diaphragm; 5, dense water flow-guiding screen; 6, the second counter-infiltration diaphragm; 7, the second pure water flow-guiding screen; 8, intake duct.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Please refer to Fig. 1 to Fig. 3, the invention provides a kind of multimembrane leaf wound membrane element, comprising: central tube 1; First pure water flow-guiding screen 2 of multiple stagger successively stacked setting connection, one end of first the first pure water flow-guiding screen 2 is connected with central tube 1, second described first pure water flow-guiding screen 2 and first described first pure water flow-guiding screen 2 stagger the first preset distance arranged stacked, and one end of all the other the first pure water flow-guiding screens 2 connects by the previous first pure water flow-guiding screen 2 that the second preset distance is corresponding separately to it respectively; Reverse osmosis membrane chip module 3, is respectively arranged with one deck reverse osmosis membrane chip module 3 between adjacent two the first pure water flow-guiding screens 2.One end shutoff of central tube 1, other end opening, preferably, central tube 1 is provided with the water inlet duct 8 that multiple size is identical.Preferably, the size uniformity in multiple water inlet duct 8.
As illustrated in fig. 1 and 2, the end of one end of first the first pure water flow-guiding screen 2 is connected with central tube 1, one end of second the first pure water flow-guiding screen 2 is connected with the first pure water flow-guiding screen 2 at the A place, position of described end first preset distance of one end of distance first the first pure water flow-guiding screen 2, and one end of the 3rd the first pure water flow-guiding screen 2 is connected with second the first pure water flow-guiding screen 2 at the B place, position of distance and position A place second preset distance.If any more first pure water flow-guiding screen 2, then set gradually in a manner mentioned above.Preferably, link together by the mode of bonding or welding between two first pure water flow-guiding screens 2 with annexation.Preferably, multiple first pure water flow-guiding screen 2 is wound on central tube 1.
As shown in Figure 1 to Figure 3, multimembrane leaf wound membrane element in the present invention has multiple the first pure water flow-guiding screen 2 arranged that staggers successively, therefore, the central tube of existing structure can be used, and without the need to making each pure water flow-guiding screen all be connected with central tube as technical scheme mentioned in background technology, in addition, technical scheme of the present invention realizes the preparation of multimembrane leaf reverse-osmosis membrane element while changing the film number of sheets without the need to main dispatching centre pipe, thus achieve one tube multipurpose, not only ensure that the intensity of central tube, and simplify rolling technology.
Please refer to Fig. 3, in a preferred embodiment, reverse osmosis membrane chip module 3 comprises the first counter-infiltration diaphragm 4 be cascading, dense water flow-guiding screen 5 and the second counter-infiltration diaphragm 6.Like this, when counter-infiltration diaphragm group is wrapped on central tube, make to form water inlet flow channel between the interlayer of counter-infiltration diaphragm front, formed and produce water flow passage between reverse side interlayer, water inlet flow-guiding screen is arranged in water inlet flow channel, and the first pure water flow-guiding screen 2 is arranged in and produces water flow passage.
As shown in Figure 3, in a preferred embodiment, first counter-infiltration diaphragm 4 and the second counter-infiltration diaphragm 6 are one whole counter-infiltration diaphragm, and the part after the doubling of one whole counter-infiltration diaphragm forms the first counter-infiltration diaphragm 4, remainder forms the second counter-infiltration diaphragm 6.That is, one whole counter-infiltration diaphragm can be become two-layer (i.e. the first counter-infiltration diaphragm 4 and the second counter-infiltration diaphragm 6) according to certain dislocation dimension D vis-a-vis doubling, and dense water flow-guiding screen 5 is set in the two-layer counter-infiltration diaphragm be folded to form.Preferably, the length of the first counter-infiltration diaphragm 4 is greater than the length of dense water flow-guiding screen 5, and the length of dense water flow-guiding screen 5 is greater than the length of the second counter-infiltration diaphragm 6.
As shown in Figure 1, after the first pure water flow-guiding screen 2 has connected, can the reverse osmosis membrane chip module 3 folded shown in Fig. 3 be successively set between two the first pure water flow-guiding screens 2, can also the top one deck first pure water flow-guiding screen 2 above a reverse osmosis membrane chip module 3 is set again.Preferably, the modes of emplacement of reverse osmosis membrane chip module 3 is: longer the first counter-infiltration diaphragm 4 of length upper, that length is shorter the second counter-infiltration diaphragm 6 under.Such as, when reverse osmosis membrane chip module 3 being arranged on after between two the first pure water flow-guiding screens 2, can at the backsize glue of this whole counter-infiltration diaphragm, and the tree lace position of application point glue be made to become its excess-three limit except parallel with central tube and close central tube of this whole counter-infiltration diaphragm.
Please refer to Fig. 1 and Fig. 2, the film number of sheets of the multimembrane leaf wound membrane element that above-mentioned second preset distance can roll as required is determined.More preferably, described second preset distance is:
d＝(π·r)/n
Wherein, d is preset distance, and the maximum gauge formed when first described first pure water flow-guiding screen 2 that r is described first preset distance is wrapped on described central tube 1, n is the film number of sheets.
Please refer to Fig. 2, preferably, the difference (i.e. above-mentioned dislocation dimension D) of the length of the first counter-infiltration diaphragm 4 and the first counter-infiltration diaphragm 4 is:
d＝(π·r)/n
Wherein, d is the difference of length, and the maximum gauge formed when first described first pure water flow-guiding screen 2 that r is described first preset distance is wrapped on described central tube 1, n is the film number of sheets.
In the embodiment shown in Figure 2, preferably, this multimembrane leaf wound membrane element also comprises the second pure water flow-guiding screen 7, the length of the second pure water flow-guiding screen 7 is the half of the length of the first pure water flow-guiding screen 2, one end of second pure water flow-guiding screen 7 is connected with last first pure water flow-guiding screen 2, arranges one deck reverse osmosis membrane chip module 3 between the second pure water flow-guiding screen 7 and last the first pure water flow-guiding screen 2.Preferably, the side away from last the first pure water flow-guiding screen 2 of the second pure water flow-guiding screen 7 is provided with one deck reverse osmosis membrane chip module 3.Wherein, one end of the second pure water flow-guiding screen 7 is connected with the position C of the center of last the first pure water flow-guiding screen 2.
Present invention also offers a kind of manufacture method of multimembrane leaf wound membrane element, it can be used for manufacturing above-mentioned multimembrane leaf wound membrane element.Therefore, repeat or something in common with among the technical scheme of above-mentioned multimembrane leaf wound membrane element, do not repeat them here.
In one embodiment, the manufacture method of this multimembrane leaf wound membrane element comprises: the first pure water flow-guiding screen 2 providing multiple stagger successively stacked setting connection; One end of first the first pure water flow-guiding screen 2 is connected with central tube 1; Stagger described one end of the first pure water flow-guiding screen 2 that is described relative to first for one end of second described first pure water flow-guiding screen 2 the first preset distance; One end of all the other multiple described first pure water flow-guiding screens 2 is connected by the previous first pure water flow-guiding screen 2 that the second preset distance is corresponding separately to it respectively; Between adjacent two the first pure water flow-guiding screens 2, one deck reverse osmosis membrane chip module 3 is set respectively.
Please refer to Fig. 1, first, one end of first the first pure water flow-guiding screen 2 is connected with central tube 1 sidewall, then, one end of second the first pure water flow-guiding screen 2 is made to be connected to position A on first the first pure water flow-guiding screen 2, wherein, the distance (i.e. the first preset distance) of position A distance center pipe at least can make the pure water flow-guiding screen of this part be wound around central tube one week.Preferably, can according to the mode second the first pure water flow-guiding screen 2 is connected on first the first pure water flow-guiding screen 2, then connect multiple first pure water flow-guiding screen 2 successively, thus form the structure of multilayer layer stacked.Such as, also making one end of the 3rd the first pure water flow-guiding screen 2 be connected to position B on second the first pure water flow-guiding screen 2, is wherein the second preset distance between position A and position B.
Owing to have employed said method, the multimembrane leaf wound membrane element that said method in the present invention obtains has multiple the first pure water flow-guiding screen 2 arranged that staggers successively, therefore, the central tube of existing structure can be used, and without the need to making each pure water flow-guiding screen all be connected with central tube as technical scheme mentioned in background technology, in addition, technical scheme of the present invention realizes the preparation of multimembrane leaf reverse-osmosis membrane element while changing the film number of sheets without the need to main dispatching centre pipe, thus achieve one tube multipurpose, and rolling technology is simple, workable.
Preferably, the method also comprises: the first counter-infiltration diaphragm 4, dense water flow-guiding screen 5 and the second counter-infiltration diaphragm 6 are cascading to form reverse osmosis membrane chip module 3.
Preferably, by the doubling of one whole counter-infiltration diaphragm, to make, the part of one whole counter-infiltration diaphragm after doubling forms the first counter-infiltration diaphragm 4, remainder forms the second counter-infiltration diaphragm 6.Preferably, the method also comprises: make the length of the first counter-infiltration diaphragm 4 be greater than the length of dense water flow-guiding screen 5, and makes the length of dense water flow-guiding screen 5 be greater than the length of the second counter-infiltration diaphragm 6.
Such as, when reverse osmosis membrane chip module 3 being arranged on after between two the first pure water flow-guiding screens 2, can at the backsize glue of this whole counter-infiltration diaphragm, and the tree lace position of application point glue be made to become its excess-three limit except parallel with central tube and close central tube of this whole counter-infiltration diaphragm.After glue application completes, preparation central tube completing membrane component can be wound on.
Preferably, the second preset distance is:
d＝(π·r)/n
Wherein, d is preset distance, and the maximum gauge formed when first described first pure water flow-guiding screen 2 that r is described first preset distance is wrapped on described central tube 1, n is the film number of sheets.
Preferably, the difference of the length of the first counter-infiltration diaphragm 4 and the first counter-infiltration diaphragm 4 is:
d＝(π·r)/n
Wherein, d is the difference of length, and the maximum gauge formed when first described first pure water flow-guiding screen 2 that r is described first preset distance is wrapped on described central tube 1, n is the film number of sheets.
Preferably, the method also comprises: be connected with last first pure water flow-guiding screen 2 second pure water flow-guiding screen 7 one end, and wherein the length of the second pure water flow-guiding screen 7 is the half of the length of the first pure water flow-guiding screen 2; Between the second pure water flow-guiding screen 7 and last the first pure water flow-guiding screen 2, one deck reverse osmosis membrane chip module is set.
Preferably, the method also comprises: arrange one deck reverse osmosis membrane chip module in the side away from last the first pure water flow-guiding screen 2 of the second pure water flow-guiding screen 7.
Preferably, the method also comprises: be wound on central tube 1 by multiple first pure water flow-guiding screen 2.
Every layer of first pure water flow-guiding screen dislocation connects by the manufacture method in the present invention, and can adjust the number of sheets of the first pure water flow-guiding screen according to required membrane area, thus achieves the conversion of multimembrane leaf wound membrane element between the different film number of sheets.In addition, the method preparation technology in the present invention is simple, workable.
Certainly, be more than the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art, under the prerequisite not departing from its general principles, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (19)
1. a multimembrane leaf wound membrane element, is characterized in that, comprising:
Central tube (1);
First pure water flow-guiding screen (2) of multiple stagger successively stacked setting connection, one end of first described first pure water flow-guiding screen (2) is connected with described central tube (1), second described first pure water flow-guiding screen (2) and first described first pure water flow-guiding screen (2) stagger the first preset distance arranged stacked, and one end of the first pure water flow-guiding screen (2) described in all the other connects by the previous first pure water flow-guiding screen (2) that the second preset distance is corresponding separately to it respectively;
Reverse osmosis membrane chip module (3), is respectively arranged with reverse osmosis membrane chip module (3) described in one deck between adjacent two described first pure water flow-guiding screens (2).
2. multimembrane leaf wound membrane element according to claim 1, it is characterized in that, described reverse osmosis membrane chip module (3) comprises the first counter-infiltration diaphragm (4), dense water flow-guiding screen (5) and the second counter-infiltration diaphragm (6) that are cascading.
3. multimembrane leaf wound membrane element according to claim 2, it is characterized in that, described first counter-infiltration diaphragm (4) and described second counter-infiltration diaphragm (6) are one whole counter-infiltration diaphragm, and the part after the doubling of described one whole counter-infiltration diaphragm forms described first counter-infiltration diaphragm (4), remainder forms described second counter-infiltration diaphragm (6).
4. multimembrane leaf wound membrane element according to claim 2, it is characterized in that, the length of described first counter-infiltration diaphragm (4) is greater than the length of described dense water flow-guiding screen (5), and the length of described dense water flow-guiding screen (5) is greater than the length of described second counter-infiltration diaphragm (6).
5. multimembrane leaf wound membrane element according to claim 1, is characterized in that, described second preset distance is:
d＝(π·r)/n
Wherein, d is described second preset distance, and the maximum gauge formed when first that r is described first preset distance described first pure water flow-guiding screen (2) is wrapped on described central tube (1), n is the film number of sheets.
6. multimembrane leaf wound membrane element according to claim 4, is characterized in that, described first counter-infiltration diaphragm (4) with the difference of the length of described first counter-infiltration diaphragm (4) is:
d＝(π·r)/n
Wherein, d is the difference of described length, and the maximum gauge formed when first that r is described first preset distance described first pure water flow-guiding screen (2) is wrapped on described central tube (1), n is the film number of sheets.
7. multimembrane leaf wound membrane element according to claim 1, it is characterized in that, described multimembrane leaf wound membrane element also comprises the second pure water flow-guiding screen (7), the length of described second pure water flow-guiding screen (7) is the half of the length of described first pure water flow-guiding screen (2), one end of described second pure water flow-guiding screen (7) is connected with the first pure water flow-guiding screen (2) described in last, described second pure water flow-guiding screen (7) and arrange one deck reverse osmosis membrane chip module (3) between the first pure water flow-guiding screen (2) described in last.
8. multimembrane leaf wound membrane element according to claim 7, it is characterized in that, described second pure water flow-guiding screen (7) the side of the first pure water flow-guiding screen (2) described in last is provided with one deck reverse osmosis membrane chip module (3).
9. multimembrane leaf wound membrane element according to claim 1, is characterized in that, described multiple first pure water flow-guiding screen (2) is wound on described central tube (1).
10. multimembrane leaf wound membrane element according to claim 1, is characterized in that, described central tube (1) is provided with the water inlet duct (8) that multiple size is identical.
The manufacture method of 11. 1 kinds of multimembrane leaf wound membrane element, is characterized in that, comprising:
First pure water flow-guiding screen (2) of multiple stagger successively stacked setting connection is provided;
One end of first described first pure water flow-guiding screen (2) is connected with central tube (1);
First preset distance that staggered described one end of the first pure water flow-guiding screen (2) that is described relative to first for one end of second described first pure water flow-guiding screen (2) is arranged;
One end of all the other multiple described first pure water flow-guiding screens (2) is connected by the previous first pure water flow-guiding screen (2) that the second preset distance is corresponding separately to it respectively;
Between adjacent two described first pure water flow-guiding screens (2), one deck reverse osmosis membrane chip module (3) is set respectively.
The manufacture method of 12. multimembrane leaf wound membrane element according to claim 11, it is characterized in that, described method also comprises: the first counter-infiltration diaphragm (4), dense water flow-guiding screen (5) and the second counter-infiltration diaphragm (6) are cascading to form described reverse osmosis membrane chip module (3).
The manufacture method of 13. multimembrane leaf wound membrane element according to claim 12, it is characterized in that, by the doubling of one whole counter-infiltration diaphragm, to make, the part of described one whole counter-infiltration diaphragm after doubling forms described first counter-infiltration diaphragm (4), remainder forms described second counter-infiltration diaphragm (6).
The manufacture method of 14. multimembrane leaf wound membrane element according to claim 12, it is characterized in that, described method also comprises: make the length of described first counter-infiltration diaphragm (4) be greater than the length of described dense water flow-guiding screen (5), and makes the length of described dense water flow-guiding screen (5) be greater than the length of described second counter-infiltration diaphragm (6).
The manufacture method of 15. multimembrane leaf wound membrane element according to claim 11, it is characterized in that, described second preset distance is:
d＝(π·r)/n
Wherein, d is described second preset distance, and the maximum gauge formed when first that r is described first preset distance described first pure water flow-guiding screen (2) is wrapped on described central tube (1), n is the film number of sheets.
The manufacture method of 16. multimembrane leaf wound membrane element according to claim 14, is characterized in that, described first counter-infiltration diaphragm (4) with the difference of the length of described first counter-infiltration diaphragm (4) is:
d＝(π·r)/n
Wherein, d is described preset distance, and the maximum gauge formed when first that r is described first preset distance described first pure water flow-guiding screen (2) is wrapped on described central tube (1), n is the film number of sheets.
The manufacture method of 17. multimembrane leaf wound membrane element according to claim 11, it is characterized in that, described method also comprises:
Be connected with the first pure water flow-guiding screen (2) described in last second pure water flow-guiding screen (7) one end, the length of wherein said second pure water flow-guiding screen (7) is the half of the length of described first pure water flow-guiding screen (2);
At described second pure water flow-guiding screen (7) and described in last, between the first pure water flow-guiding screen (2), one deck reverse osmosis membrane chip module is set.
The manufacture method of 18. multimembrane leaf wound membrane element according to claim 17, it is characterized in that, described method also comprises: arrange one deck reverse osmosis membrane chip module at described second pure water flow-guiding screen (7) away from the side of the first pure water flow-guiding screen (2) described in last.
The manufacture method of 19. multimembrane leaf wound membrane element according to claim 11, it is characterized in that, described method also comprises: be wound on described central tube (1) by described multiple first pure water flow-guiding screen (2).
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| WO2017000653A1 (en) * | 2015-06-30 | 2017-01-05 | 佛山市美的清湖净水设备有限公司 | Reverse osmosis membrane assembly and manufacturing method therefor |
| CN109605758A (en) * | 2018-12-26 | 2019-04-12 | 上海福赛特机器人有限公司 | A kind of welding method of flow-guiding cloth |
| 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 |
| CN114177776A (en) * | 2021-10-29 | 2022-03-15 | 北京碧水源分离膜科技有限公司 | Manufacturing method of multi-page reverse osmosis membrane element and multi-page reverse osmosis membrane element |
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| WO2002020142A1 (en) * | 2000-09-05 | 2002-03-14 | Miox Corporation | Reverse osmosis membrane and process for making same |
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| CN205182525U (en) * | 2015-10-28 | 2016-04-27 | 珠海格力电器股份有限公司 | Multimembrane leaf roll formula film element |
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| WO2017000653A1 (en) * | 2015-06-30 | 2017-01-05 | 佛山市美的清湖净水设备有限公司 | Reverse osmosis membrane assembly and manufacturing method therefor |
| CN109605758A (en) * | 2018-12-26 | 2019-04-12 | 上海福赛特机器人有限公司 | A kind of welding method of flow-guiding cloth |
| 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 |
| CN114177776A (en) * | 2021-10-29 | 2022-03-15 | 北京碧水源分离膜科技有限公司 | Manufacturing method of multi-page reverse osmosis membrane element and multi-page reverse osmosis membrane element |
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