Reverse osmosis membrane convenient to clean

Abstract

The utility model discloses a reverse osmosis membrane element convenient to clean, which comprises a tubular membrane shell and a plurality of groups of reverse osmosis components, a water collecting pipe is arranged in the membrane shell, each reverse osmosis component comprises two reverse osmosis membranes and a water collecting layer arranged between the two reverse osmosis membranes, and the reverse osmosis membranes and the water collecting layers are tightly attached to each other. The water collecting pipe is provided with a water collecting hole, one side of the reverse osmosis assembly is connected with the side wall of the water collecting pipe, the water collecting layer is connected with the water collecting hole, and the reverse osmosis assembly is wound on the water collecting pipe and inserted into the membrane shell. According to the reverse osmosis membrane element convenient to clean, the service life of the reverse osmosis membrane element is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis membranes, in particular to a reverse osmosis membrane which is convenient to clean. Background Art

[0002] Reverse osmosis membrane, also known as rolled reverse osmosis membrane, is a commonly used element in water treatment technology. It generally includes a central tube with multiple holes and a multi-layer reverse osmosis membrane and a flow guide net alternately stacked on the central tube. The central tube is connected to the shell at both ends through a connector. When in use, raw water enters the shell from one end of the shell. Under the action of pressure, a part of it passes through the reverse osmosis membrane to form water with a lower concentration. After entering the central tube, it flows out from one or both ends of the central tube. This part of water can be called produced water or pure water; the other part flows out from the other end of the shell, which can be called waste water or concentrated water. During the reverse osmosis membrane filtration process, many impurities will remain inside the element. After a long time, it is easy to affect the quality and efficiency of penetration, so it needs to be cleaned and replaced in time.

[0003] At present, the reverse osmosis membrane structure is generally that the reverse osmosis membrane, the isolation layer and the water collection layer are alternately stacked and sealed at the edges and then wrapped around the central tube. Since the four sides need to be glued tightly layer by layer after the alternate stacking, when the reverse osmosis membrane is disassembled for cleaning, the internal reverse osmosis membrane cannot be cleaned, which makes cleaning difficult, affects the quality and efficiency of the osmosis, and shortens the service life of the reverse osmosis element. Utility Model Content

[0004] The main purpose of the utility model is to provide a reverse osmosis membrane that is easy to clean, aiming to provide a reverse osmosis membrane that is easy to clean and to increase the service life of the reverse osmosis membrane.

[0005] To achieve the above-mentioned purpose, the utility model proposes a reverse osmosis membrane that is easy to clean, including a tubular membrane shell, a water collecting pipe is arranged in the membrane shell, and also includes multiple groups of reverse osmosis components, the reverse osmosis components include two reverse osmosis membranes and a water collecting layer arranged between the two reverse osmosis membranes, the reverse osmosis membranes and the water collecting layer are tightly arranged, the water collecting pipe is provided with a water collecting hole, one side of the reverse osmosis component is connected to the side wall of the water collecting pipe and the water collecting layer is connected to the water collecting hole, the reverse osmosis component is wound on the water collecting pipe and inserted in the membrane shell.

[0006] In one embodiment of the utility model, the water collecting pipe is provided with a slot, the water collecting hole is arranged in the slot and connected to the inner wall of the water collecting pipe, a connecting strip is connected to one side of the reverse osmosis component, and the connecting strip is provided with a plurality of through holes at the connection with the water collecting layer, and when the reverse osmosis component is connected to the water collecting pipe, the connecting strip is embedded in the slot and the through holes are aligned with the water collecting hole.

[0007] In an embodiment of the present invention, both ends of the membrane shell are provided with fixed covers, and the fixed covers are detachably connected to the membrane shell.

[0008] In an embodiment of the present invention, the fixing cover is provided with a water hole.

[0009] In one embodiment of the present invention, a sealing coating is provided on the peripheral side of the reverse osmosis component.

[0010] In one embodiment of the present invention, an isolation layer is connected to the side of the reverse osmosis membrane in each reverse osmosis assembly that is away from the water collection layer.

[0011] The technical solution of the utility model combines a reverse osmosis membrane and a water collecting layer to form a reverse osmosis component, and then connects multiple groups of reverse osmosis components to a water collecting pipe and winds them around the water collecting pipe, thereby realizing the function of rapid cleaning. When cleaning is required, the water collecting pipe and the reverse osmosis component are disassembled from the membrane shell together, and then the reverse osmosis component is unfolded, and the reverse osmosis membranes on the reverse osmosis component are fully cleaned one by one, thereby ensuring the smooth flow of the reverse osmosis membrane, preventing blockage from affecting the water production efficiency, and extending the service life of the reverse osmosis membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0013] Figure 1 This is a schematic structural diagram of an embodiment of a reverse osmosis membrane that is easy to clean according to the utility model;

[0014] Figure 2 This is a schematic structural diagram of a reverse osmosis assembly of an embodiment of a reverse osmosis membrane that is easy to clean according to the utility model;

[0015] Figure 3 This is a schematic structural diagram of the reverse osmosis component A in one embodiment of a reverse osmosis membrane that is easy to clean according to the utility model;

[0016] Figure 4 This is a schematic structural diagram of a water collecting pipe of an embodiment of a reverse osmosis membrane that is easy to clean according to the utility model;

[0017] Figure 5 The utility model is a schematic structural diagram of an embodiment of a reverse osmosis membrane that is easy to clean.

[0018] Description of Figure Numbers:

[0019] 1. Water collecting pipe; 2. Reverse osmosis assembly; 3. Membrane shell; 11. Slot; 12. Water collecting hole; 21. Reverse osmosis membrane; 22. Water collecting layer; 23. Isolation layer; 24. Connecting strip; 25. Through hole; 26. Sealing coating; 31. Fixed cover; 32. Water through hole.

[0020] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0025] The utility model provides a reverse osmosis membrane which is convenient to clean.

[0026] In the embodiment of the utility model, a reverse osmosis membrane that is easy to clean, such as Figures 1 to 5 As shown, it includes a tubular membrane shell 3, in which a water collecting pipe 1 and multiple groups of reverse osmosis components 2 are arranged, wherein the reverse osmosis component 2 includes two reverse osmosis membranes 21 and a water collecting layer 22 arranged between the two reverse osmosis membranes 21, the reverse osmosis membranes 21 and the water collecting layer 22 are tightly arranged, and a water collecting hole 12 is provided on the water collecting pipe 1, one side of the reverse osmosis component 2 is connected to the side wall of the water collecting pipe 1 and the water collecting layer 22 is connected to the water collecting hole 12, so that pure water can flow from the water collecting layer 22 into the water collecting pipe 1 through the water collecting hole 12, and in order to save space, the reverse osmosis component 2 is wrapped around the water collecting pipe 1 and inserted into the membrane shell 3.

[0027] The structure of the water-collecting layer 22 in the technology of the present application can be a grid-shaped water-permeable structure, and the material can be plastic or fiber. The water-collecting layer 22 can also be a sponge, which mainly plays the role of support, isolation and water collection to prevent the two reverse osmosis membranes 21 from being squeezed and caused to stick together when subjected to high water pressure. The water passing through the reverse osmosis membrane 21 can flow into the water-collecting pipe 1 through the water-collecting layer 22. When the reverse osmosis membrane 21 needs to be cleaned, the water-collecting pipe 1 and the reverse osmosis assembly 2 can be removed from the membrane shell 3 together, and then the reverse osmosis assembly 2 can be unfolded, and the reverse osmosis membranes 21 on the reverse osmosis assembly 2 can be fully cleaned one by one to prevent blockage from affecting the water production efficiency, while extending the service life of the reverse osmosis membrane 21.

[0028] Preferably, if Figure 4 As shown, the water collecting pipe 1 and the reverse osmosis component 2 can be separately arranged, which makes it more convenient to clean the reverse osmosis component 2. A slot 11 is provided on the side wall of the water collecting pipe 1, and a water collecting hole 12 is provided in the slot 11 and connected to the inner wall of the water collecting pipe 1. In addition, a snap-in strip 24 is connected to one side of the reverse osmosis component 2, and a plurality of through holes 25 are provided at the place where the snap-in strip 24 is connected to the water collecting layer 22. When the reverse osmosis component 2 is connected to the water collecting pipe 1, the snap-in strip 24 is embedded in the slot 11 and the through holes 25 are aligned with the water collecting hole 12. When disassembly is required, the snap-in strip 24 can be directly pulled out, so that the reverse osmosis component 2 can be cleaned separately, which is convenient and quick.

[0029] Furthermore, if Figure 5 As shown, both ends of the membrane shell 3 are provided with fixing covers 31, and the fixing covers 31 are detachably connected to the membrane shell 3. When the reverse osmosis component 2 wrapped around the water collecting pipe 1 is inserted into the membrane shell 3, the fixing covers 31 are installed at both ends of the membrane shell 3 to fix the reverse osmosis component 2.

[0030] The fixed cover 31 is provided with a water hole 32 , through which raw water can enter and flow out.

[0031] Alternatively, if Figure 2 As shown, a sealing coating 26 is provided on the circumference of the reverse osmosis module 2 to prevent raw water from penetrating into the water collecting layer 22 from the circumference of the reverse osmosis module and polluting the pure water in the water collecting layer 22 .

[0032] Alternatively, if Figure 3 As shown, when the reverse osmosis assembly 2 is wound on the water collecting pipe 1, the reverse osmosis membranes 21 will contact each other. Under a large water pressure, the reverse osmosis membranes 21 may be stuck. To prevent this from happening, an isolation layer 23 is connected to the side of the reverse osmosis membrane 21 in each reverse osmosis assembly 2 that is away from the water collecting layer 22. The isolation layer 23 has a mesh structure that allows water to flow through. The material may be plastic or fiber. The isolation layer 23 may also be a sponge, which mainly plays the role of isolation and water flow. While isolating the reverse osmosis membrane 21, it also allows raw water to pass through.

[0033] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A reverse osmosis membrane that is easy to clean, comprising a tubular membrane shell, wherein a water collecting pipe is arranged in the membrane shell, characterized in that: It also includes multiple groups of reverse osmosis components, which include two reverse osmosis membranes and a water collecting layer arranged between the two reverse osmosis membranes. The reverse osmosis membranes and the water collecting layer are tightly fitted, the water collecting pipe is provided with a water collecting hole, one side of the reverse osmosis component is connected to the side wall of the water collecting pipe and the water collecting layer is connected to the water collecting hole, and the reverse osmosis component is wound on the water collecting pipe and inserted into the membrane shell.

2. A reverse osmosis membrane that is easy to clean as claimed in claim 1, characterized in that: The water collecting pipe is provided with a slot, the water collecting hole is arranged in the slot and connected to the inner wall of the water collecting pipe, one side of the reverse osmosis component is connected with a connecting strip, and the connecting strip is provided with a plurality of through holes at the place where it is connected to the water collecting layer. When the reverse osmosis component is connected to the water collecting pipe, the connecting strip is embedded in the slot and the through holes are aligned with the water collecting hole.

3. A reverse osmosis membrane that is easy to clean as claimed in claim 2, characterized in that: Both ends of the membrane shell are provided with fixed covers, and the fixed covers are detachably connected to the membrane shell.

4. A conveniently cleaned reverse osmosis membrane as claimed in claim 3, characterized in that: The fixing cover is provided with a water through hole.

5. A reverse osmosis membrane that is easy to clean as claimed in claim 1, characterized in that: The reverse osmosis component is provided with a sealing coating on its peripheral side.

6. A conveniently cleaned reverse osmosis membrane according to any one of claims 1 to 5, characterized in that: The reverse osmosis membrane in each reverse osmosis assembly is connected to an isolation layer on the side away from the water collecting layer.

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