Cleaning and checking device for single nanofiltration membrane

Abstract

The utility model relates to a cleaning inspection device for a single nanofiltration membrane, which comprises a raw water tank and a cleaning cylinder for placing the single nanofiltration membrane, and the cleaning cylinder is provided with a raw water inlet, a concentrated liquid outlet and a clear liquid outlet; a water inlet pipeline is connected between the raw water inlet of the cleaning cylinder and the raw water tank, a concentrated liquid outlet pipeline is connected between the concentrated liquid outlet of the cleaning cylinder and the raw water tank, a clear liquid outlet pipeline is connected between the clear liquid outlet of the cleaning cylinder and the raw water tank, and a turbidity meter is arranged on the clear liquid outlet pipeline. The cleaning and checking device for the single nanofiltration membrane is simple in overall structure, small in occupied space, low in investment cost, capable of cleaning or checking the single nanofiltration membrane at a time, convenient to use, practical and capable of being used for conducting off-line cleaning and checking on the nanofiltration membrane on nanofiltration membrane filtering equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to cleaning equipment field, especially a single nanofiltration membrane's cleaning inspection device. BACKGROUND

[0002] In general industrial water or processing technology, the application of nanofiltration membrane filtration equipment is very extensive.But after using for a period of time, the nanofiltration membrane element will appear the problems such as flux reduction or breakage, although the nanofiltration membrane filtration equipment has the function of cleaning, but when the nanofiltration membrane filtration equipment has multiple nanofiltration membrane elements, the cleaning effect is uneven, and it is very difficult to find out which nanofiltration membrane element is broken.Therefore, it is necessary to clean and detect the nanofiltration membrane element offline. SUMMARY

[0003] Therefore, the utility model discloses the purpose is to provide a simple structure, low investment cost, convenient and practical single nanofiltration membrane's cleaning inspection device.

[0004] The utility model discloses the following scheme realizes: a single nanofiltration membrane's cleaning inspection device, including raw water jar and with to place single nanofiltration membrane's cleaning cylinder, the cleaning cylinder is equipped with raw water import, thick liquid export and clear liquid export, the raw water import of cleaning cylinder is connected with raw water jar between the water inlet pipeline, and the thick liquid export of cleaning cylinder is connected with raw water jar between thick liquid outlet pipeline, and the clear liquid export of cleaning cylinder is connected with raw water jar between clear liquid outlet pipeline, be equipped with turbidimeter on the clear liquid outlet pipeline.

[0005] Further, the water inlet pipeline is sequentially provided with a water inlet pump, a pressure gauge A, a filter, a pressure gauge B, a circulating pump, a water inlet flow meter and a pressure gauge C.

[0006] Further, the thick liquid outlet pipeline is sequentially provided with a thick liquid flow meter and a pressure gauge D.

[0007] Further, the clear liquid outlet pipeline is sequentially provided with a clear liquid flow meter and a turbidimeter.

[0008] Further, the cleaning cylinder is made of stainless steel.

[0009] Compared with the prior art, the single nanofiltration membrane cleaning inspection device of the utility model has the following beneficial effects: the overall structure of the single nanofiltration membrane cleaning inspection device is simple, occupies small space, and has low investment cost, and the single nanofiltration membrane is cleaned or inspected at a time, which is convenient and practical, and can be used for offline cleaning and checking of the nanofiltration membrane on the nanofiltration membrane filtration equipment.

[0010] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following will be further described in detail through specific embodiments and related drawings. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a schematic diagram of the embodiment of the utility model;

[0012] The figure mark explanation: 1 - raw water tank, 2 - cleaning cylinder, 3 - water inlet pipeline, 4 - concentrated liquid outlet pipeline, 5 - clear liquid outlet pipeline, 6 - water inlet pump, 7 - pressure gauge A, 8 - filter, 9 - pressure gauge B, 10 - circulating pump, 11 - water inlet flowmeter, 12 - pressure gauge C, 13 - concentrated liquid flowmeter, 14 - pressure gauge D, 15 - clear liquid flowmeter, 16 - turbidimeter. DETAILED DESCRIPTION

[0013] It should be noted that the following detailed description is exemplary and is intended to provide further description of the present application. Unless otherwise defined, 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 application belongs.

[0014] It should be noted that the terms used herein are only for the purpose of describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0015] As shown in Figure 1 A single nanofiltration membrane cleaning and checking device, comprising a raw water tank 1 and a cleaning cylinder 2 for placing a single nanofiltration membrane, the cleaning cylinder is provided with a raw water inlet, a concentrated liquid outlet and a clear liquid outlet; a water inlet pipeline 3 is connected between the raw water inlet of the cleaning cylinder and the raw water tank, a concentrated liquid outlet pipeline 4 is connected between the concentrated liquid outlet of the cleaning cylinder and the raw water tank, a clear liquid outlet pipeline 5 is connected between the clear liquid outlet of the cleaning cylinder and the raw water tank, and a turbidimeter 16 is arranged on the clear liquid outlet pipeline. After the nanofiltration membrane on the nanofiltration membrane filtration equipment is removed, the device is used for cleaning and checking the single nanofiltration membrane; during cleaning, the raw water tank 1 is filled with reagent; during checking, the raw water tank 1 is filled with sewage, and the turbidity of the clear liquid is detected by the turbidimeter 16 to determine whether the nanofiltration membrane is damaged. The device can clean or check a single nanofiltration membrane at a time, has good cleaning effect, simple overall structure, small space occupation, low investment cost, is convenient and practical, and can be used for offline cleaning and checking of the nanofiltration membrane on the nanofiltration membrane filtration equipment.

[0016] In the embodiment, a water inlet pump 6, a pressure gauge A 7, a filter 8, a pressure gauge B 9, a circulating pump 10, a water inlet flowmeter 11 and a pressure gauge C 12 are sequentially arranged on the water inlet pipeline. The flux of the filter can be detected by the pressure gauge A 7 and the pressure gauge B 9 to determine whether the filter element needs to be replaced.

[0017] In the embodiment, the concentrated liquid outlet pipeline is sequentially provided with a concentrated liquid flow meter 13 and a pressure gauge D 14.

[0018] In the embodiment, the clear liquid outlet pipeline is further provided with a clear liquid flow meter 15.

[0019] In the embodiment, the cleaning cylinder is made of stainless steel. The structure of the cleaning cylinder is consistent with the membrane shell structure of the nanofiltration membrane assembly. After a single nanofiltration membrane is placed in the cleaning cylinder, a small volume of nanofiltration membrane assembly is formed, and a novel membrane shell structure disclosed in Chinese patent CN214131081U can also be used.

[0020] Unless otherwise stated, if the above-mentioned any technical solution of the utility model discloses a numerical range, the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that the preferred numerical range is only one of many implementable values with more obvious technical effects or representative values. Since there are too many values, it is impossible to enumerate, therefore, the utility model only discloses part of the values to illustrate the technical solutions of the utility model, and the above-mentioned enumerated values should not constitute a limitation on the protection scope of the utility model.

[0021] If the utility model discloses or involves mutually fixed connecting parts or structural members, unless otherwise stated, the fixed connection can be understood as: detachable fixed connection (for example, bolt or screw connection), and can also be understood as: non-detachable fixed connection (for example, riveting, welding), of course, the mutually fixed connection can also be replaced by an integral structure (for example, integrally formed by using casting process) (except for obvious cases that cannot use integral forming process).

[0022] In addition, the terms used to represent the positional relationship or shape in any technical solution disclosed in the above-mentioned utility model include states or shapes similar, analogous or close to them, unless otherwise stated.

[0023] Any component provided by the utility model can be assembled from multiple individual components, or can be an individual component manufactured by integral forming process.

[0024] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution of the present application, and in accordance with the technical essence of the present application, still belong to the protection scope of the technical solution of the present application.

Claims

1. A cleaning inspection device for a single nanofiltration membrane, characterized by: The application relates to a water purification device, which comprises a raw water tank and a cleaning cylinder for placing a single nanofiltration membrane, wherein the cleaning cylinder is provided with a raw water inlet, a concentrated liquid outlet and a clear liquid outlet; a water inlet pipeline is connected between the raw water inlet of the cleaning cylinder and the raw water tank; a concentrated liquid outlet pipeline is connected between the concentrated liquid outlet of the cleaning cylinder and the raw water tank; a clear liquid outlet pipeline is connected between the clear liquid outlet of the cleaning cylinder and the raw water tank; and a turbidimeter is arranged on the clear liquid outlet pipeline.

2. The single nanofiltration membrane cleaning check device according to claim 1, characterized in that: A water inlet pump, a pressure gauge A, a filter, a pressure gauge B, a circulating pump, a water inlet flowmeter and a pressure gauge C are sequentially arranged on the water inlet pipeline.

3. The single nanofiltration membrane cleaning check device according to claim 1, characterized in that: A concentrated liquid flowmeter and a pressure gauge D are sequentially arranged on the concentrated liquid outlet pipeline.

4. The single nanofiltration membrane cleaning check device according to claim 1, characterized in that: A clear liquid flowmeter is further arranged on the clear liquid outlet pipeline.

5. The single nanofiltration membrane cleaning check device according to claim 1, characterized in that: The cleaning cylinder is made of stainless steel.

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