CN218435114U - Lossless and durable reverse osmosis membrane element - Google Patents
Lossless and durable reverse osmosis membrane element Download PDFInfo
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- CN218435114U CN218435114U CN202222430738.4U CN202222430738U CN218435114U CN 218435114 U CN218435114 U CN 218435114U CN 202222430738 U CN202222430738 U CN 202222430738U CN 218435114 U CN218435114 U CN 218435114U
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- reverse osmosis
- osmosis membrane
- membrane element
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- concentrated water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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Abstract
The utility model discloses a nondestructive durable reverse osmosis membrane element, which comprises a central tube, a plurality of reverse osmosis multilayer films and a plurality of pieces of flow guide cloth; the central pipe is provided with a through hole capable of allowing pure water to enter and exit, the flow guide cloths are wound and fixed on the central pipe and are overlapped, a reverse osmosis multilayer film is arranged between every two adjacent flow guide cloths, one side of each reverse osmosis multilayer film, close to the central pipe, or one side of each reverse osmosis multilayer film, far away from the central pipe, is a gluing side, and the gluing side is coated with sealant; the reverse osmosis multilayer film comprises reverse osmosis membranes and a concentrated water net, wherein a polyamide layer is arranged on one side of each reverse osmosis membrane, each reverse osmosis membrane is oppositely folded, the concentrated water net is arranged between the two reverse osmosis membrane layers, and a protective layer is wrapped at one end, close to the crease of each reverse osmosis membrane, of the concentrated water net. The concentrated water net of this patent wraps up the inoxidizing coating, avoids haring reverse osmosis membrane, has prolonged reverse osmosis membrane element's life, improves its stability and reliability. The membrane layer is simple to arrange, the membrane area of the membrane element is increased, and the water flux and the desalination rate can be effectively improved.
Description
Technical Field
The utility model relates to a reverse osmosis membrane technical field especially relates to a harmless durable reverse osmosis membrane element.
Background
The reverse osmosis membrane technology is a novel high-efficiency pressure-driven separation technology, is a comprehensive technology with multiple disciplines crossed, can meet the technical requirements of modern industry on energy conservation and environmental protection, and becomes an important strategic component of water resource sustainable development. The membrane separation process is that under the drive of external force (including pressure difference, concentration difference, temperature difference and potential difference) the mixed fluid can be passed through the membrane with selective permeability so as to attain the goal of selective filtration. The aperture of the reverse osmosis membrane functional layer is 0.1-1nm, all suspended matters and solutes in water can be almost intercepted, and the reverse osmosis membrane has great advantage in the aspect of separating monovalent small molecular solutes.
Generally, a reverse osmosis membrane element is prepared by fixing a concentrated water net, a reverse osmosis membrane and a flow guide cloth on a central pipe, but the concentrated water net is in a grid shape, and burrs on the edge of the concentrated water net easily damage the reverse osmosis membrane when the membrane element is used for a long time or impacted by high pressure, so that the membrane element is damaged, the filtering effect of the membrane element is influenced, and the service life of the membrane element is greatly shortened.
Therefore, in combination with the above-mentioned technical problems, there is a need to provide a new technical solution.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists, the utility model aims to provide a can't harm durable reverse osmosis membrane element to overcome prior art not enough. In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
according to one aspect of the utility model, a nondestructive durable reverse osmosis membrane element is provided, which comprises a central tube, a plurality of reverse osmosis multilayer films and a plurality of pieces of flow guide cloth; the central tube is provided with a through hole capable of passing in and out pure water, the plurality of guide cloths are wound and fixed on the central tube and are overlapped, reverse osmosis multilayer films are arranged between every two adjacent guide cloths, one end of each reverse osmosis multilayer film, which is fixed on the central tube, is a glue-free side, one side of each reverse osmosis multilayer film, which is close to the central tube or far away from the central tube, is a glue-coated side, and the glue-coated side is coated with sealant;
the reverse osmosis multilayer film comprises reverse osmosis membranes and a concentrated water net, wherein a polyamide layer is arranged on one side of each reverse osmosis membrane, each reverse osmosis membrane is oppositely folded into two reverse osmosis membrane layers, the polyamide layer on each reverse osmosis membrane is positioned on the inner sides of the two reverse osmosis membrane layers, the concentrated water net is arranged between the two reverse osmosis membrane layers, and a protective layer wraps one end, close to a crease of each reverse osmosis membrane, of the concentrated water net.
As a harmless durable reverse osmosis membrane component an optimal selection scheme, the inoxidizing coating welded fastening is close to the one end of reverse osmosis membrane crease in dense water net.
As an optimized proposal of the nondestructive durable reverse osmosis membrane element, the protective layer is non-woven fabric, plastic film or transparent adhesive tape.
As a preferred scheme of the nondestructive durable reverse osmosis membrane element, the width of the protective layer is 3-4cm.
As a preferred scheme of the nondestructive durable reverse osmosis membrane element, the transparent adhesive tape is a 3M adhesive tape.
As a suboptimum scheme of harmless durable reverse osmosis membrane component, be provided with two reverse osmosis multilayer membranes between two liang of adjacent water conservancy diversion cloth, sealed glue sets up in one side that reverse osmosis multilayer membrane is close to the water conservancy diversion cloth.
Compared with the prior art, the utility model discloses there is one or more beneficial effect at least once:
the protective layer is wrapped at one end, close to the crease of the reverse osmosis membrane, of the concentrated water net, so that the concentrated water net is prevented from being in direct contact with the reverse osmosis membrane, the reverse osmosis membrane is prevented from being damaged by burrs at the edge of the concentrated water net after the reverse osmosis membrane element is rolled in the rolling process or used for a long time or is subjected to high pressure, the service life of the reverse osmosis membrane element is greatly prolonged, and the stability and the reliability of the reverse osmosis membrane element are improved.
The reverse osmosis membrane element of this patent's rete sets up simply, and simple structure has reduced manufacturing cost, simultaneously because the rete sets up simply, the relative increase the membrane area of membrane element, and then can effectively promote water flux and desalination.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a construction of a protective layer wrapped around one end of a concentrate net according to the present application;
FIG. 2 is a schematic structural view of a reverse osmosis multilayer film described herein;
fig. 3 is a schematic structural view of a reverse osmosis membrane element according to the present application.
The water-based solar cell comprises a central tube 1, a reverse osmosis multilayer film 2, a flow guide cloth 3, a through hole 11, a sealant 201, a reverse osmosis membrane 21, a concentrated water net 22 and a protective layer 23.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "provided", "placed", "opened", "fixed", and the like are to be understood broadly, for example, "connected" may be a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Referring to fig. 1-3, as shown in fig. 1-3, a non-destructive and durable reverse osmosis membrane element includes a central tube 1, a plurality of reverse osmosis multi-layer membranes 2, and a plurality of flow-guiding cloths 3; the reverse osmosis membrane element has the advantages that the membrane layer is simple in arrangement and structure, the production and manufacturing cost is reduced, and meanwhile, the membrane area of the membrane element is relatively increased due to the fact that the membrane layer is simple in arrangement, and therefore the water flux and the desalination rate can be effectively improved.
The central tube 1 is provided with a through hole 11 capable of passing in and out pure water, a plurality of pieces of flow guide cloth 3 are wound and fixed on the central tube 1, the flow guide cloth 3 are overlapped, a reverse osmosis multilayer film 2 is arranged between every two adjacent flow guide cloth 3, one end of each reverse osmosis multilayer film 2 fixed on the central tube is a glue-free side, one side of each reverse osmosis multilayer film 2 close to the central tube or one side far away from the central tube is a glue-coated side, and the glue-coated side is coated with a sealant 201; in the example, the reverse osmosis multilayer film 2 and the flow guide cloth 3 are alternately arranged in sequence, and the flow guide cloth is arranged at the bottommost layer close to the central pipe.
The reverse osmosis multilayer film 2 comprises reverse osmosis films 21 and a concentrated water net 22, wherein a polyamide layer is arranged on one side of each reverse osmosis film 21, each reverse osmosis film 21 is oppositely folded into two reverse osmosis film layers, the polyamide layer on each reverse osmosis film 21 is positioned on the inner sides of the two reverse osmosis film layers, the concentrated water net 22 is arranged between the two reverse osmosis film layers, and one end, close to the crease of each reverse osmosis film 21, of the concentrated water net 22 is wrapped with a protective layer 23. Preferably, the protective layer 23 is a non-woven fabric, a plastic film or a transparent adhesive tape. Among them, the transparent adhesive tape is preferably a 3M adhesive tape. In the example, the protective layer 23 with the width of 3-4cm and the width of 3-4cm is folded and wrapped at one end of the dense water net 22 close to the crease of the reverse osmosis membrane 21. The protective layer is wrapped at one end, close to the crease of the reverse osmosis membrane, of the concentrated water net, so that the concentrated water net is prevented from being in direct contact with the reverse osmosis membrane, the reverse osmosis membrane is prevented from being damaged by burrs at the edge of the concentrated water net after the reverse osmosis membrane element is rolled in the rolling process or used for a long time or is subjected to high pressure, the service life of the reverse osmosis membrane element is greatly prolonged, and the stability and the reliability of the reverse osmosis membrane element are improved.
In the preferred embodiment, the protective layer 23 is welded and fixed to one end of the concentrate net 22 close to the folds of the reverse osmosis membrane. In the example, the protective layer 23 wrapped at one end of the dense water net 22 close to the crease of the reverse osmosis membrane is welded and fixed at intervals of 5-10cm by using an ultrasonic welding gun 4, and the protective layer 23 is fixedly wrapped at one end of the dense water net 22 to prevent the protective layer from falling off.
The preparation process of the reverse osmosis membrane element comprises the following steps:
s1: laying the concentrated water net on a workbench, folding a protective layer such as non-woven fabric in half to wrap one end of the concentrated water net, and ultrasonically welding the non-woven fabric to one end of the concentrated water net at intervals of 5-10cm by using an ultrasonic welding gun so as to form a three-layer structure of non-woven fabric-concentrated water net-non-woven fabric at one end of the concentrated water net, wherein the non-woven fabric is ultrasonically welded to prevent the non-woven fabric from falling off; of course, the patent is not limited to non-woven fabrics, and can also be plastic films or transparent adhesive tapes;
s2: as shown in fig. 2, the reverse osmosis membrane is folded in half, wherein the polyamide layer on the reverse osmosis membrane is folded in half on the inner side, the concentrated water net welded with the protective layer is placed in the interlayer of the folded reverse osmosis membrane, and one end of the non-woven fabric wrapped by the concentrated water net is close to the crease of the reverse osmosis membrane and is aligned to the crease, so that the reverse osmosis multilayer membrane is prepared; preparing a plurality of reverse osmosis multilayer films according to the method;
s3: as shown in fig. 3, one end of a first piece of flow guide cloth is fixed on the central pipe, then a first piece of reverse osmosis multilayer film is placed on the first piece of flow guide cloth, meanwhile, sealant is coated on one end of the first piece of reverse osmosis multilayer film except for the crease and the other three sides, then a second piece of flow guide cloth is placed on the first piece of reverse osmosis multilayer film, and thus the reverse osmosis multilayer film and the flow guide cloth are alternately placed in sequence, and after the placement is completed, the flow guide cloth is wound and fixed on the central pipe.
The various aspects, embodiments, features and examples of the present invention should be considered illustrative in all respects and not intended to be limiting, the scope of the invention being defined only by the claims. Other embodiments, modifications, and uses will be apparent to those skilled in the art without departing from the spirit and scope of the claimed invention.
The use of the titles and chapters in the utility model is not meant to limit the utility model; each section may apply to any aspect, embodiment, or feature of the present invention.
Throughout the present application, where compositions are described as having, containing, or including specific components, or where processes are described as having, containing, or including specific process steps, it is contemplated that compositions taught by the present invention also consist essentially of, or consist of, the recited components, and that processes taught by the present invention also consist essentially of, or consist of, the recited process steps.
Unless specifically stated otherwise, use of the terms "comprising," "having," and the like, are generally to be understood as being open-ended and not limiting.
It should be understood that the order of steps or the order in which particular actions are performed is not critical, so long as the teachings of the present invention remain operable. Further, two or more steps or actions may be performed simultaneously.
In addition, the utility model discloses the people still refers to aforementioned embodiment, has carried out the experiment with other raw materials, technology operation, process conditions mentioned in this specification to all obtain comparatively ideal result.
While the invention has been described with reference to illustrative embodiments, it will be understood by those skilled in the art that various other changes, omissions and/or additions may be made and substantial equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims. Moreover, unless specifically stated any use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another.
Claims (6)
1. A lossless and durable reverse osmosis membrane element is characterized by comprising a central tube (1), a plurality of reverse osmosis multilayer membranes (2) and a plurality of diversion cloths (3); the water purifier is characterized in that a through hole (11) capable of allowing pure water to enter and exit is formed in the central tube (1), a plurality of pieces of flow guide cloth (3) are wound and fixed on the central tube (1), the flow guide cloth (3) are overlapped, reverse osmosis multilayer films (2) are arranged between every two adjacent flow guide cloth (3), one end, fixed on the central tube, of each reverse osmosis multilayer film (2) is a glue-free side, one side, close to the central tube, of each reverse osmosis multilayer film (2) or one side, far away from the central tube, of each reverse osmosis multilayer film is a glue-coated side, and the glue-coated side is coated with a sealant (201);
the reverse osmosis multilayer film (2) comprises reverse osmosis films (21) and a concentrated water net (22), a polyamide layer is arranged on one side of each reverse osmosis film (21), each reverse osmosis film (21) is oppositely folded into two reverse osmosis film layers, the polyamide layer on each reverse osmosis film (21) is located on the inner side of each two reverse osmosis film layers, the concentrated water net (22) is arranged between the two reverse osmosis film layers, and a protective layer (23) wraps one end, close to the crease of each reverse osmosis film (21), of each concentrated water net (22).
2. The non-destructive durable reverse osmosis membrane element according to claim 1, wherein the protective layer (23) is welded and fixed to an end of the concentrate net (22) near a fold of the reverse osmosis membrane.
3. The non-destructive and durable reverse osmosis membrane element according to claim 1, wherein the protective layer (23) is a non-woven fabric, a plastic film or a transparent adhesive tape.
4. The non-destructive and durable reverse osmosis membrane element according to claim 1, wherein the width of the protective layer (23) is 3-4cm.
5. The non-destructive durable reverse osmosis membrane element of claim 3, wherein the scotch tape is a 3M tape.
6. The nondestructive durable reverse osmosis membrane element as claimed in claim 1, wherein two reverse osmosis multilayer films (2) are arranged between two adjacent guide cloths (3), and the sealant (201) is arranged on one side of the reverse osmosis multilayer film (2) close to the guide cloths (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222430738.4U CN218435114U (en) | 2022-09-14 | 2022-09-14 | Lossless and durable reverse osmosis membrane element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222430738.4U CN218435114U (en) | 2022-09-14 | 2022-09-14 | Lossless and durable reverse osmosis membrane element |
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| Publication Number | Publication Date |
|---|---|
| CN218435114U true CN218435114U (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222430738.4U Active CN218435114U (en) | 2022-09-14 | 2022-09-14 | Lossless and durable reverse osmosis membrane element |
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| CN (1) | CN218435114U (en) |
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- 2022-09-14 CN CN202222430738.4U patent/CN218435114U/en active Active
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