CN210752125U - M-shaped roll type reverse osmosis membrane element and water purification system - Google Patents
M-shaped roll type reverse osmosis membrane element and water purification system Download PDFInfo
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- CN210752125U CN210752125U CN201921580450.7U CN201921580450U CN210752125U CN 210752125 U CN210752125 U CN 210752125U CN 201921580450 U CN201921580450 U CN 201921580450U CN 210752125 U CN210752125 U CN 210752125U
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Abstract
The utility model relates to a formula reverse osmosis membrane element and water purification system are rolled up to M type, wherein formula reverse osmosis membrane element is rolled up to M type includes dense water pipe and reverse osmosis membrane piece, reverse osmosis membrane piece is folding repeatedly, form positive intermediate layer and the reverse side intermediate layer of arranging in turn, positive intermediate layer is inserted and is equipped with into water and separate the net, positive interbedded opening is towards dense water pipe, the long limit of raw water runner is sealed for the part, the one end of keeping away from dense water pipe on long limit forms the raw water import, the reverse side intermediate layer is inserted and is equipped with the pure water conservancy diversion cloth, the reverse side intermediate layer is all connected in two long limit departments with corresponding pure water conservancy diversion cloth, it is located the pure water runner of lateral surface. In the water making process, raw water flows through the long edge, so that the water making efficiency is high. The water flow speed in the raw water flow channel and the pure water flow channel close to the concentrated water pipe is high, the concentration polarization phenomenon at the concentrated water side is effectively relieved, the problem of high back pressure at the pure water side close to the concentrated water pipe is solved, and the service life is prolonged.
Description
Technical Field
The utility model relates to a water purification field especially relates to a formula of book reverse osmosis membrane element of M type and water purification system.
Background
The roll type reverse osmosis membrane element is mainly obtained by rolling pure water diversion cloth, a reverse osmosis membrane and a water inlet separation net which are sequentially stacked on a central water production pipe. In the using process, water molecules in the raw water flow passage penetrate to the reverse side of the reverse osmosis membrane by applying pressure in the raw water flow passage formed between the front side of the reverse osmosis membrane and the water inlet separation net, and are gathered in the pure water flow passage formed by the reverse side of the reverse osmosis membrane and the pure water guide cloth and finally conveyed to a user for use. However, the concentration polarization of the concentrated water side of the raw water channel of the common roll type reverse osmosis membrane element is serious, and the service life of the membrane element is short.
SUMMERY OF THE UTILITY MODEL
Therefore, the M-type roll-type reverse osmosis membrane element and the water purification system are needed to effectively relieve the concentration polarization phenomenon on the concentrated water side and prolong the service life.
A M-shaped roll type reverse osmosis membrane element comprises a concentrated water pipe and a reverse osmosis membrane, wherein the reverse osmosis membrane is repeatedly folded to form a front interlayer and a back interlayer which are alternately arranged, a water inlet separation net is inserted in the front interlayer to form a raw water flow passage, the opening of the front interlayer faces the concentrated water pipe, the opening is communicated with the concentrated water pipe, the long edge of the raw water flow passage is partially sealed, one end of the long edge, far away from the concentrated water pipe, is provided with a raw water inlet, the back interlayer is inserted with a pure water guide cloth, the back interlayer is correspondingly connected with the pure water guide cloth at two long edges to form a pure water flow passage with a pure water outlet positioned at the outer side, an outer layer of the outermost front interlayer is provided with an outer layer of guide cloth, the outer layer of the guide cloth is connected with the opposite reverse side at two long edges and short edges to form the, the short edge of the outer layer diversion cloth, which is far away from the pure water outlet, is connected with the concentrated water pipe, and the outer layer diversion cloth, the pure water diversion cloth, the water inlet separation net and the reverse osmosis membrane after being folded repeatedly are rolled on the concentrated water pipe.
The scheme provides an M-shaped roll type reverse osmosis membrane element, wherein a water inlet separation net and a pure water diversion cloth are respectively inserted into a front interlayer and a back interlayer which are formed by repeated folding, so that a raw water flow passage and a pure water flow passage are formed. And the opening of the front interlayer faces the concentrated water pipe, and the long edge part of the raw water flow channel is sealed at one end far away from the concentrated water pipe to form a raw water inlet. In the water making process, raw water flows through the long side, the water making efficiency is high, and in the scheme, the flow speed of the raw water in the raw water flow channel is high in comparison with a mode that the short side is used as a filtering path. And the pure water flow guide cloth forming the pure water flow channel is connected with the interlayer at the back side between the two long sides and the short side close to the concentrated water pipe to form the pure water flow channel with a pure water outlet positioned at the outer side surface. Therefore, after the pure water diversion cloth, the reverse osmosis membrane and the water inlet separation net are rolled on the concentrated water pipe, the flow velocity of water in a raw water flow channel and a pure water flow channel close to the concentrated water pipe is high, on one hand, the concentration polarization phenomenon at the concentrated water side is effectively relieved, on the other hand, the problem of high back pressure at the pure water side close to the concentrated water pipe is also solved, and the service life is prolonged.
In one embodiment, one end of the water inlet separation net close to the concentrated water pipe exceeds the front interlayer corresponding to the end, and the distance between the water inlet separation net and the front interlayer is not less than 0.5 cm.
In one embodiment, the distance between the water inlet separation net and the front interlayer is 0.5 cm-3 cm.
In one embodiment, one end of the pure water guide cloth, which is far away from the concentrated water pipe, exceeds the corresponding reverse interlayer, and the distance between the pure water guide cloth and the reverse interlayer is not less than 0.5 cm.
In one embodiment, the distance from the pure water guide cloth to the interlayer on the back side is 0.5 cm-3 cm.
In one embodiment, the front surface interlayers and the back surface interlayers which are alternately arranged from outside to inside are arranged in a staggered mode in the direction far away from the concentrated water pipe.
In one embodiment, the front interlayer and the back interlayer which are adjacent to each other are outer interlayers and inner interlayers which are located at the outer sides of the front interlayer and the back interlayer relatively, the inner interlayer is staggered from the outer interlayer along the direction away from the concentrated water pipe by a distance of L, the outer circumference of the concentrated water pipe is D, the total number of the inner interlayers and the outer interlayers is n, and then L is D/n.
In one embodiment, the concentrated water pipe is provided with a plurality of water through holes, the water through holes penetrate through the side wall of the concentrated water pipe, and the water through holes are distributed in the circumferential direction of the concentrated water pipe.
In one embodiment, the outer peripheral surface of the concentrated water pipe is provided with a diversion trench, and the diversion trench is communicated between the raw water flow channel and the water through hole.
A water purification system comprises the M-shaped roll type reverse osmosis membrane element.
According to the scheme, the M-shaped roll type reverse osmosis membrane element in any one embodiment is arranged in the water purification system, raw water in a raw water flow channel advances along a long edge, the flow speed is high, and the tangential flow speed is high at a position close to a concentrated water pipe, so that the concentration polarization phenomenon at the concentrated water side is effectively relieved, and the service life is prolonged.
Drawings
FIG. 1 is a schematic view of a reverse osmosis membrane sheet of the M-shaped roll-type reverse osmosis membrane element of this embodiment being rolled on a concentrate pipe after being folded repeatedly;
FIG. 2 is a schematic view showing the water flow direction of the M-shaped rolled reverse osmosis membrane element according to this embodiment;
FIG. 3 is a schematic structural view of the M-shaped roll-type reverse osmosis membrane element in an expanded state according to the present embodiment;
FIG. 4 is a front view of the M-shaped roll-type reverse osmosis membrane element of FIG. 3 in an expanded state;
FIG. 5 is a flow chart of the method for manufacturing the M-shaped rolled reverse osmosis membrane element according to this embodiment.
Description of reference numerals:
10. m-shaped roll type reverse osmosis membrane elements; 11. a concentrated water pipe; 111. water passing holes; 12. a reverse osmosis membrane; 121. a front interlayer; 122. a reverse interlayer; 13. a water inlet separation net; 131. a raw water flow passage; 1311. a raw water inlet; 14. pure water diversion cloth; 141. a pure water flow passage; 1411. a pure water outlet; 15. an outer side surface; 16. an end face.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
As shown in fig. 1 to 4, there is provided in one embodiment an M-type roll-type reverse osmosis membrane element 10 including a concentrate pipe 11 and a reverse osmosis membrane sheet 12. The reverse osmosis membrane 12 is repeatedly folded to form a front interlayer 121 and a back interlayer 122 which are alternately arranged. The front interlayer 121 is inserted with a water inlet separation net 13 to form a raw water flow passage 131, an opening of the front interlayer 121 faces the concentrated water pipe 11, and the opening is communicated with the concentrated water pipe 11. The long side of the raw water channel 131 is partially sealed and a raw water inlet 1311 is formed at one end of the long side away from the concentrated water pipe 11.
In the water production process, the raw water flow path is a long side, so that the water production efficiency is high. Compared with the mode that the short side is used as a filtering path, under the condition of a certain flow rate, the flow speed of raw water in the raw water flow channel 131 is high, and the concentration polarization phenomenon is relieved to a certain extent.
The pure water flow guide cloth 14 is inserted into the back interlayer 122, the back interlayer 122 is connected with the corresponding pure water flow guide cloth 14 at two long edges to form a pure water flow passage 141 with a pure water outlet 1411 positioned on the outer side surface 15, an outer layer flow guide cloth is arranged on the outer layer of the outermost front interlayer, the outer layer flow guide cloth is connected with the opposite back surface at two long edges and short edges to form the pure water flow passage, and the short edge of the outer layer flow guide cloth, which is far away from the pure water outlet, is connected with the thick water pipe. The outer layer flow guide cloth, the pure water flow guide cloth 14, the water inlet separation net 13 and the reverse osmosis membrane 12 after repeated folding are rolled on the concentrated water pipe 11.
Therefore, after the pure water diversion cloth 14, the reverse osmosis membrane 12 and the water inlet separation net 13 are rolled on the concentrated water pipe 11, the concentrated water formed in the water making process is gathered in the concentrated water pipe 11, and the pure water flows spirally in the pure water flow channel 141 and is discharged from the outer side surface 15. The water flow rates in the raw water flow channel 131 and the pure water flow channel 141 close to the concentrated water pipe 11 are high, so that on one hand, the concentration polarization phenomenon on the concentrated water side is effectively relieved, on the other hand, the problem of high back pressure on the pure water side of the reverse osmosis membrane 12 close to the concentrated water pipe 11 is solved, and the service life is further prolonged.
Further, when the pure water flow path 141 is formed by the pure water guide cloth 14 after the formation of the back surface interlayer 122 by repeated folding, the adhesion process is more convenient, and the sealing property of the pure water flow path 141 is more reliable. Specifically, when the pure water flow path 141 is formed, only two long sides between the reverse interlayer 122 and the pure water guide cloth 14 need to be glued, and no glue needs to be applied to the short sides, so that the sealing reliability is higher.
The front surface of the reverse osmosis membrane 12 is a surface through which water molecules can permeate under a high pressure environment, and the folded front surface is opposite to the front surface interlayer 121. Correspondingly, the other side of the reverse osmosis membrane 12 is a reverse side, and a reverse side interlayer 122 is formed oppositely after folding the reverse side.
The outer side surface 15 referred to herein is the outer side surface 15 formed by the pure water guide cloth 14, the reverse osmosis membrane 12 and the water inlet separation net 13 after the pure water guide cloth 14, the reverse osmosis membrane 12 and the water inlet separation net 13 are rolled on the concentrated water pipe 11.
The short side is a side distributed along the axial direction of the concentrate pipe 11, and the long side is a side spirally wound on the concentrate pipe 11 along the circumferential direction, that is, the long side is a side distributed along the advancing direction of the water flow during water production. Generally speaking, after the reverse osmosis membrane 12, the pure water guide cloth 14 and the water inlet separation net 13 are rolled on the thick water pipe 11 for a plurality of circles, the long side is larger than the short side, so that the water production efficiency of the raw water advancing along the long side for filtering is higher.
Furthermore, in order to reduce the overflow of glue during rolling, glue can be applied to the positions, 1 cm-3 cm away from the side edges of the long edges, of the two long edges.
Further, in one embodiment, as shown in fig. 3 and 4, one end of the water inlet separation net 13 close to the concentrated water pipe 11 exceeds the corresponding front interlayer 121, and the distance of the water inlet separation net 13 exceeding the front interlayer 121 is not less than 0.5 cm.
The part of the water inlet separation net 13, which exceeds the front interlayer 121, is in contact with the concentrated water pipe 11, so that the concentrated water in the raw water runner 131 is better guided into the concentrated water pipe 11, and the situation that the concentrated water is not smoothly circulated at a position close to the concentrated water pipe 11 to cause scaling is avoided.
Further, in one embodiment, the distance between the water inlet separation net 13 and the front interlayer 121 is 0.5cm to 3 cm. Therefore, the smooth flowing of the concentrated water at the concentrated water side is ensured, and the situation that the length of the raw water channel 131 is reduced under the condition that the length of the reverse osmosis membrane 12 is fixed is avoided, or the situation that the whole M-shaped roll type reverse osmosis membrane element 10 is overlarge to ensure that the length of the raw water channel 131 reaches a certain value is avoided.
Further, in an embodiment, one end of the pure water guiding cloth 14 far from the concentrated water pipe 11 exceeds the corresponding reverse interlayer 122, and the distance that the pure water guiding cloth 14 exceeds the reverse interlayer 122 is not less than 0.5 cm. Thereby ensuring that the pure water outlet 1411 on the outer side surface 15 is always in an open state after being rolled, and improving the water making efficiency.
Further, in one embodiment, the distance from the pure water guiding cloth 14 to the back interlayer 122 is 0.5cm to 3 cm. In the same way, the pure water outlet 1411 is always in an open state, and the condition that the volume of the M-shaped roll type reverse osmosis membrane element 10 is too large is avoided.
Further, in one embodiment, the front surface interlayers 121 and the back surface interlayers 122 alternately arranged from the outside to the inside are arranged in a staggered manner in a direction away from the concentrated water pipe 11.
Therefore, after the reverse osmosis membrane 12 is rolled on the concentrated water pipe 11, as shown in fig. 1, the openings of the raw water flow channels 131 opposite to the concentrated water pipe 11 are distributed in the circumferential direction of the concentrated water pipe 11, that is, although the raw water flow channels 131 and the pure water flow channels 141 are formed by folding the reverse osmosis membrane 12, the above staggered arrangement mode can ensure that the flow channels can be effectively communicated with the concentrated water pipe 11.
Specifically, in one embodiment, the adjacent front interlayer 121 and the back interlayer 122 are an outer interlayer and an inner interlayer respectively located at the outer side and the inner side. The inner interlayer is staggered with respect to the outer interlayer along a direction far away from the concentrated water pipe 11 by a distance L, the outer circumference of the concentrated water pipe 11 is D, the total number of the inner interlayer and the outer interlayer is n, and L is D/n.
Thus, the openings of the raw water flow channels 131 opposite to the concentrated water pipe 11 can be uniformly distributed in the circumferential direction of the concentrated water pipe 11, so that the circulation of the raw water flow channels 131 is ensured, and the concentration polarization phenomenon is further relieved to a certain extent.
Further, in order to ensure that each raw water flow channel 131 can communicate with the concentrated water pipe 11, a water through hole 111 may be provided in the concentrated water pipe 11, the water through hole 111 penetrates through a side wall of the concentrated water pipe 11, and the water through hole 111 may be provided in plural numbers, and the plural water through holes 111 are distributed in the circumferential direction of the concentrated water pipe 11, so as to ensure that each raw water flow channel 131 can communicate with the concentrated water pipe 11 through the water through hole 111.
Further, a diversion trench may be further disposed on the outer circumferential surface of the concentrated water pipe 11, and the diversion trench is communicated between the raw water channel 131 and the water through hole 111, so that the raw water channel 131 can be communicated with the water through hole 111 through the diversion trench, thereby improving the reliability of circulation.
Further, in another embodiment, a water purification system is provided, which comprises the M-shaped rolled reverse osmosis membrane element 10.
By arranging the M-shaped rolled reverse osmosis membrane element 10 in any one of the embodiments in the water purification system, raw water in the raw water channel 131 travels along the long side, the flow rate is high, and the tangential flow rate is high at a position close to the concentrated water pipe 11, so that the concentration polarization phenomenon at the concentrated water side is effectively relieved, and the service life is prolonged.
Further, as shown in fig. 5, in yet another embodiment, a method for manufacturing an M-shaped roll-type reverse osmosis membrane element is provided, which includes the following steps:
the reverse osmosis membrane 12 is repeatedly folded to form a front interlayer 121 and a back interlayer 122 which are alternately arranged;
the water inlet separation net 13 is inserted into the front interlayer 121, and the pure water guide cloth 14 is inserted into the back interlayer 122;
applying glue between the long side of the reverse interlayer 122 and the pure water guide cloth 14 to form a pure water channel 141, and as shown in fig. 1, 3 and 4, a pure water outlet 1411 of the pure water channel 141 is positioned at one end of the folded edge far away from the reverse interlayer 122;
connecting the short side of the pure water guide cloth 14 on the outermost layer far away from the pure water outlet 1411 with the concentrated water pipe 11, as shown in fig. 1, rolling the adhered reverse osmosis membrane 12, the water inlet separation net 13 and the pure water guide cloth 14 on the concentrated water pipe 11;
glue is applied to the end face 16 of the rolled water inlet separation net 13 and the front surface interlayer 121, so that the long side part of the front surface interlayer 121 is sealed, the glue applying position is a position close to the concentrated water pipe 11, and a raw water inlet 1311 is formed in a position close to the outer side face 15 on the end face 16.
The reverse osmosis membrane 12 is repeatedly folded, which means that the front interlayer 121 and the back interlayer 122 are formed by folding like a folding fan. The reverse osmosis membrane 12 is formed with a front interlayer 121 opposite to the front side and a back interlayer 122 opposite to the back side.
The reverse osmosis membrane 12 is repeatedly folded to form a front interlayer 121 and a back interlayer 122 which are alternately arranged, so that the water inlet separation net 13 is further inserted into the front interlayer 121, and the pure water guide cloth 14 is inserted into the back interlayer 122. And glue is applied between the pure water guide cloth 14 and the reverse interlayer 122, so that a pure water outlet 1411 is formed between the pure water flow passage 141 and the reverse interlayer 122 and is positioned in the pure water flow passage 141 which is folded away from the reverse interlayer 122. After rolling, glue is applied to the end surface 16, thereby forming a raw water inlet 1311 near the outer side surface 15. The raw water walking path is a long edge in the filtering process, the water production efficiency is high, the flow rate of the raw water and the pure water is high, especially the tangential flow rate at the position close to the concentrated water pipe 11 is high, the concentration polarization phenomenon at the concentrated water side is relieved, the problem that the back pressure at the pure water side of the reverse osmosis membrane 12 is large is solved at the position close to the concentrated water pipe 11, and the service life of the M-shaped roll type reverse osmosis membrane element 10 manufactured by adopting the mode is prolonged.
The end face 16 refers to the end face 16 of the cylindrical structure formed after the reverse osmosis membrane 12, the water inlet separation net 13 and the pure water diversion cloth 14 are rolled on the concentrated water pipe 11. As shown in fig. 2, a raw water inlet 1311 is formed near the outer side surface 15 by applying glue to the end surface 16.
Further, in one embodiment, the position for applying glue at the long side of the back interlayer 122 is a long side pasting position, and the distance between the long side pasting position and the long side edge of the back interlayer 122 is 1cm to 3 cm.
As described above in the M-roll reverse osmosis membrane element 10, the overflow of glue during rolling after adhesion can be reduced.
Since the front surface of the reverse osmosis membrane 12 is not easy to be glued, the raw water channel 131 is sealed by gluing the end surface 16 after being rolled. Sealing is achieved by glue coating sealing, or by a combination of glue and a sealing end cap.
Further, in an embodiment, the glue lines arranged along the long sides on the pure water guide cloth 14 are long-side glue lines, one end of the long-side glue line, which is far away from the thick water pipe 11, extends out of the pure water guide cloth 14, and the length of the long-side glue line, which extends out of the pure water guide cloth 14, is not less than the perimeter of the outer side surface 15 formed by the pure water guide cloth 14 on the outermost layer after being rolled.
Therefore, after being rolled, the long edge glue line can rotate for one circle along the outer side surface 15, and the sealing reliability is further improved.
After repeated folding, when the concentrated water pipe 11 is rolled, the outermost layer is the front interlayer 121, and the outer side of the front interlayer 121 is provided with the outer layer flow guide cloth, that is, the outer side of the outermost front interlayer 121 is connected with the outer layer flow guide cloth to form the pure water flow channel 141. The front interlayer 121 may be located at the innermost layer, and similarly, the pure water guide cloth 14 is disposed inside the front interlayer 121 to form a pure water flow channel 141.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An M-shaped roll type reverse osmosis membrane element is characterized by comprising a concentrated water pipe and a reverse osmosis membrane, wherein the reverse osmosis membrane is repeatedly folded to form a front interlayer and a back interlayer which are alternately arranged, a water inlet separation net is inserted in the front interlayer to form a raw water flow passage, the opening of the front interlayer faces the concentrated water pipe and is communicated with the concentrated water pipe, the long edge of the raw water flow passage is partially sealed, one end of the long edge far away from the concentrated water pipe forms a raw water inlet, a pure water guide cloth is inserted in the back interlayer, the back interlayer is connected with the corresponding pure water guide cloth at two long edges to form a pure water flow passage with a pure water outlet positioned at the outer side surface, an outer layer of the outermost front interlayer is provided with an outer layer of guide cloth, and the outer layer of the reverse guide cloth is connected with the opposite pure water guide cloth at two long edges and the short, the pure water flow channel is formed, the short edge of the outer layer flow guide cloth, which is far away from a pure water outlet, is connected with the concentrated water pipe, and the outer layer flow guide cloth, the pure water flow guide cloth, the water inlet separation net and the reverse osmosis membrane after being folded repeatedly are rolled on the concentrated water pipe.
2. The M-type roll-type reverse osmosis membrane element according to claim 1, wherein one end of the water inlet separation net close to the concentrated water pipe exceeds the corresponding front interlayer, and the distance from the water inlet separation net to the front interlayer is not less than 0.5 cm.
3. The M-type roll-type reverse osmosis membrane element according to claim 2, wherein the distance from the water inlet isolation net to the front interlayer is 0.5 cm-3 cm.
4. The M-shaped roll type reverse osmosis membrane element according to claim 1, wherein one end of the pure water flow guide cloth far away from the concentrated water pipe exceeds the corresponding reverse interlayer, and the distance of the pure water flow guide cloth exceeding the reverse interlayer is not less than 0.5 cm.
5. The M-shaped roll type reverse osmosis membrane element according to claim 4, wherein the distance between the pure water flow guide cloth and the interlayer on the reverse side is 0.5-3 cm.
6. The M-shaped roll type reverse osmosis membrane element according to any one of claims 1 to 5, wherein the front interlayers and the back interlayers which are alternately arranged from outside to inside are arranged in a staggered manner in the direction away from the concentrated water pipe.
7. The M-type roll-type reverse osmosis membrane element according to claim 6, wherein the adjacent front interlayer and the opposite interlayer which are relatively positioned at the outer side are outer interlayer and the other is inner interlayer, the inner interlayer is staggered with respect to the outer interlayer along the direction away from the concentrated water pipe by a distance L, the outer circumference of the concentrated water pipe is D, the total number of the inner interlayer and the outer interlayer is n, and then L is D/n.
8. The M-shaped roll type reverse osmosis membrane element according to claim 6, wherein a plurality of water through holes are formed in the concentrated water pipe, the water through holes penetrate through the side wall of the concentrated water pipe, and the water through holes are distributed in the circumferential direction of the concentrated water pipe.
9. The M-type roll-type reverse osmosis membrane element according to claim 8, wherein a guide groove is formed in the outer peripheral surface of the concentrate pipe, and the guide groove is communicated between the raw water flow channel and the water through hole.
10. A water purification system comprising an M-roll reverse osmosis membrane element according to any one of claims 1 to 9.
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| CN201921580450.7U CN210752125U (en) | 2019-09-20 | 2019-09-20 | M-shaped roll type reverse osmosis membrane element and water purification system |
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| CN201921580450.7U CN210752125U (en) | 2019-09-20 | 2019-09-20 | M-shaped roll type reverse osmosis membrane element and water purification system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508143A (en) * | 2019-09-20 | 2019-11-29 | 珠海格力电器股份有限公司 | M type coiled reverse osmosis membrane element and preparation method thereof and water purification system |
| CN115738730A (en) * | 2022-11-28 | 2023-03-07 | 珠海格力电器股份有限公司 | Roll type reverse osmosis membrane element and water purifier with same |
-
2019
- 2019-09-20 CN CN201921580450.7U patent/CN210752125U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508143A (en) * | 2019-09-20 | 2019-11-29 | 珠海格力电器股份有限公司 | M type coiled reverse osmosis membrane element and preparation method thereof and water purification system |
| CN110508143B (en) * | 2019-09-20 | 2023-10-03 | 珠海格力电器股份有限公司 | M-type coiled reverse osmosis membrane element, manufacturing method thereof and water purification system |
| CN115738730A (en) * | 2022-11-28 | 2023-03-07 | 珠海格力电器股份有限公司 | Roll type reverse osmosis membrane element and water purifier with same |
| CN115738730B (en) * | 2022-11-28 | 2024-02-20 | 珠海格力电器股份有限公司 | Rolling type reverse osmosis membrane element and water purifier with same |
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