RO membrane ring positioning device

Abstract

The utility model relates to an RO (Reverse Osmosis) membrane ring positioning device in the field of RO membranes. The RO membrane ring positioning device consists of a first end face, a second end face, notches and columnar ribs, the first end face and the second end face form an annular inner wall; a plurality of columnar ribs are uniformly distributed on the inner wall of the ring; the gap is arranged between the first end face and the second end face. The first end face abuts against the end face of the RO membrane raw water sealing ring in the direction of the water outlet, the second end face abuts against one end of the columnar rib, and the problem that the RO membrane raw water sealing ring runs due to the fact that bonding is not firm in the production process is effectively solved. When the outer diameter of the RO membrane is larger than that of the RO membrane ring positioning device, the inner diameter is expanded through the notches, and the ring running prevention effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of RO membrane rings, and in particular to an RO membrane ring positioning device. Background Technology

[0002] As a core component of water treatment systems, the sealing performance of reverse osmosis (RO) membranes directly affects the system's desalination rate, water production efficiency, and operational stability.

[0003] In existing technologies, the raw water sealing ring of RO membrane elements is typically fixed inside the membrane housing by compression assembly. However, in actual operation, due to factors such as frequent system start-ups and shutdowns, inlet water pressure fluctuations, long-term vibration, and aging of the sealing ring material, the sealing ring is prone to slippage, leading to the following problems:

[0004] 1. Risk of seal failure: Running can damage the integrity of the seal interface, causing cross-flow between the raw water side and the product water side, reducing desalination efficiency, and even causing irreversible fouling of the membrane element;

[0005] 2. Insufficient structural stability: Traditional fixing methods that rely on friction and assembly preload cannot adapt to complex working conditions, requiring frequent shutdowns for maintenance and increasing operation and maintenance costs;

[0006] 3. Shortened lifespan: Abnormal displacement of the sealing ring will exacerbate local wear, accelerate material fatigue, and shorten the overall service life of the membrane system. Utility Model Content

[0007] The purpose of this invention is to address the problem of RO membrane raw water sealing ring displacement in the prior art by proposing an RO membrane ring positioning device.

[0008] An RO membrane ring positioning device comprises a first end face, a second end face, a notch, and columnar ribs;

[0009] The first end face and the second end face form the inner wall of the annulus;

[0010] The inner wall of the ring is uniformly distributed with several columnar ribs;

[0011] The notch is located between the first end face and the second end face.

[0012] Furthermore, in an RO membrane ring positioning device, the number of columnar ribs is 4.

[0013] Furthermore, in an RO membrane ring positioning device, the direction of the columnar ribs is perpendicular to the first end face and the second end face.

[0014] Furthermore, in an RO membrane ring positioning device, the first end face and the second end face are made of elastic and stretchable material.

[0015] The beneficial effects of this utility model are as follows: one end face of the RO membrane ring positioning device abuts against the end face of the raw water sealing ring in the direction of the RO membrane outlet, and the other end face of the RO membrane ring positioning device abuts against one end of the reinforcing rib inside the reverse osmosis membrane shell, which effectively prevents the RO membrane raw water sealing ring from running away due to poor bonding during production. When the outer diameter of the RO membrane is larger than the RO membrane ring positioning device, the inner diameter is expanded by the notch to achieve the effect of preventing the ring from running away. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an RO membrane ring positioning device.

[0017] Figure 2 This is a diagram showing the connection between the RO membrane raw water sealing ring and the anti-running ring.

[0018] In the diagram: 1-first end face, 2-second end face, 3-notch, 4-columnar rib, 5-RO membrane raw water sealing ring. Detailed Implementation

[0019] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0020] As attached Figure 1 As shown, an RO membrane ring positioning device consists of a first end face 1, a second end face 2, a notch 3, and a columnar rib 4.

[0021] The first end face 1 and the second end face 2 form the inner wall of the annulus;

[0022] The inner wall of the ring is uniformly distributed with several columnar ribs 4;

[0023] The notch 3 is located between the first end face 1 and the second end face 2.

[0024] Furthermore, in an RO membrane ring positioning device, the number of columnar ribs 4 is 4.

[0025] Furthermore, in an RO membrane ring positioning device, the direction of the columnar rib 4 is perpendicular to the first end face 1 and the second end face 2.

[0026] Furthermore, in an RO membrane ring positioning device, the first end face 1 and the second end face 2 are made of elastic and stretchable material.

[0027] As attached Figure 2 As shown, the implementation principle of an RO membrane ring positioning device is as follows:

[0028] The first end face 1 abuts against the end face of the RO membrane raw water sealing ring 5 in the direction of the water outlet, and the second end face 2 abuts against one end of the columnar rib 4, effectively preventing the RO membrane raw water sealing ring 5 from running off due to poor bonding during production.

[0029] The columnar rib 4 is also a reinforcing rib inside the reverse osmosis membrane shell;

[0030] The running circle refers to the RO membrane raw water sealing ring 5 sliding towards the side with less pressure under pressure.

[0031] When the outer diameter of the RO membrane is larger than that of the RO membrane ring positioning device, the inner diameter can be expanded due to the notch 3 and the elastic material of the RO membrane ring positioning device to prevent the ring from running away.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An RO membrane ring positioning device, characterized by, The first end face (1), the second end face (2), the notch (3), and the columnar ribs (4); The first end face (1) and the second end face (2) form a circular inner wall; The circular inner wall is uniformly provided with a plurality of columnar ribs (4); The notch (3) is arranged between the first end face (1) and the second end face (2).

2. A device for positioning a RO membrane ring as claimed in claim 1, wherein The number of the columnar ribs (4) is 4.

3. A device for positioning a RO membrane ring as defined in claim 1, wherein The direction of the columnar ribs (4) is perpendicular to the first end face (1) and the second end face (2).

4. A device for positioning a RO membrane ring as defined in claim 1, wherein The first end face (1) and the second end face (2) are made of an elastic stretchable material.

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