Backflow device for fresh ultrafiltrate generated by ultrafiltration liquid preparation system

Abstract

The utility model relates to the technical field of ultrafiltration liquid preparation, in particular to a backflow device for fresh ultrafiltrate generated by an ultrafiltration liquid preparation system, which comprises an ultrafiltration liquid preparation system equipment main body, a fresh ultrafiltrate storage tank is arranged on one side of the ultrafiltration liquid preparation system equipment main body, a UF2 tank, a UF1 tank and an electrophoresis tank are arranged on one side of the fresh ultrafiltrate storage tank, and the UF2 tank and the UF1 tank are arranged on the other side of the ultrafiltration liquid preparation system equipment main body. A high-position unpowered overflow pipeline is communicated between the fresh ultrafiltrate storage tank and the UF2 tank, a middle power pump set, a liquid storage tank liquid level control system and a valve set at an inlet and an outlet of the pump set are canceled, the fresh ultrafiltrate storage tank is placed at a high position, flows back to the UF2 tank through the high-position unpowered overflow pipeline and then reversely overflows to the UF1 tank from the UF2 tank, and the fresh ultrafiltrate is recycled. The gravity backflow of the tank liquid can be stably and reliably realized, the balance of a large cycle of the electrophoresis process is kept, the energy consumption is reduced, the ground occupied space required by a low position is reduced, and the high-stability and high-reliability operation of the electrophoresis process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration liquid preparation, in particular to a fresh ultrafiltrate reflux device generated by an ultrafiltration liquid preparation system. Background Art

[0002] The ultrafiltration liquid preparation system is an essential key system equipment in the coating electrophoresis process. The fresh ultrafiltrate generated needs to be returned to the UF2 tank in the electrophoresis process, and then the UF2 tank overflows to the UF1 tank, and then the UF1 tank overflows to the electrophoresis tank. Usually, the height of the electrophoresis tank body is designed to be around +4.00m (the height may be adjusted according to different coating products) to maintain the balance of a large cycle of the electrophoresis process. Therefore, it is necessary to implement the fresh ultrafiltrate back to the UF2 tank.

[0003] In the prior art, an ultrafiltration system including a fresh ultrafiltrate storage tank is usually installed on the ground at ±0.00m, and then the liquid level in the fresh ultrafiltrate storage tank is monitored by a storage tank level control system. When the liquid level reaches the set value, the power pump group is started to send the fresh ultrafiltrate to the fresh ultrafiltrate reflux tank through the reflux pipeline, wherein the inlet and outlet valve groups of the power pump group are in an open state. However, this operating mode usually has multiple problems. First, the liquid level control system is prone to failure, and the pump group cannot be started, which may cause the tank liquid level in the fresh ultrafiltrate storage tank to be too high and overflow, flowing to the ground, causing the loss of fresh ultrafiltrate and contaminating the floor of the coating workshop. In addition, the pump group is damaged and cannot be started. Utility Model Content

[0004] The purpose of the utility model is to provide a reflux device for fresh ultrafiltrate produced by an ultrafiltration liquid preparation system, which has the characteristics of being able to stably and reliably realize the gravity reflux of the tank liquid, maintain the balance of a large cycle of the electrophoresis process, enhance the stability and reliability of the system, reduce energy consumption, and reduce the ground space required for low-level operation.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a reflux device for fresh ultrafiltrate generated by an ultrafiltration liquid preparation system comprises an ultrafiltration liquid preparation system equipment body, a fresh ultrafiltrate storage tank is provided on one side of the ultrafiltration liquid preparation system equipment body, a UF2 tank, a UF1 tank and an electrophoresis tank are provided on one side of the fresh ultrafiltrate storage tank, a high-level unpowered overflow pipeline is connected between the fresh ultrafiltrate storage tank and the UF2 tank, and connecting pipes are connected between adjacent two of the UF2 tank, UF1 tank and electrophoresis tank.

[0006] In order to utilize gravity to reflux the tank liquid, as a preferred reflux device for fresh ultrafiltrate generated by the ultrafiltration liquid preparation system of the present invention, the height of the fresh ultrafiltrate storage tank is higher than that of the UF2 tank, UF1 tank and electrophoresis tank.

[0007] In order to utilize gravity to reflux the tank liquid, as a preferred reflux device for fresh ultrafiltrate generated by the ultrafiltration liquid preparation system of the present invention, the UF2 tank, UF1 tank and electrophoresis tank are located at the same horizontal height and are evenly distributed.

[0008] In order to facilitate the guidance of fresh ultrafiltrate, as the reflux device of fresh ultrafiltrate produced by the ultrafiltration liquid preparation system of the present invention, preferably, the two connecting pipes are both arranged obliquely.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] The main body of the ultrafiltration liquid preparation system equipment, including the fresh ultrafiltrate storage tank, is installed on a ±4.00m small platform. The middle power pump group, the storage tank liquid level control system, and the valve group at the pump group inlet and outlet are cancelled. The fresh ultrafiltrate storage tank is placed at a high position, and an overflow port is opened above the fresh ultrafiltrate storage tank. The liquid flows back to the UF2 tank through the high-position unpowered overflow pipeline, and then overflows from the UF2 tank to the UF1 tank, and then overflows from the UF1 tank to the electrophoresis tank. This can stably and reliably realize the gravity reflux of the tank liquid, maintain the balance of a large cycle of the electrophoresis process, enhance the stability and reliability of the system, reduce energy consumption, reduce the ground space required for the low position, and ensure the high stability and reliability operation of the electrophoresis process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] In the figure: 1. Main body of the ultrafiltration liquid preparation system; 2. Fresh ultrafiltration liquid storage tank; 3. UF2 tank; 4. UF1 tank; 5. Electrophoresis tank; 6. High-level unpowered overflow pipeline; 7. Connecting pipe. DETAILED DESCRIPTION

[0013] See also Figure 1 The fresh ultrafiltrate reflux device generated by the ultrafiltration liquid preparation system includes an ultrafiltration liquid preparation system equipment body 1, a fresh ultrafiltrate storage tank 2 is provided on one side of the ultrafiltration liquid preparation system equipment body 1, a UF2 tank 3, a UF1 tank 4 and an electrophoresis tank 5 are provided on one side of the fresh ultrafiltrate storage tank 2, a high-level unpowered overflow pipeline 6 is connected between the fresh ultrafiltrate storage tank 2 and the UF2 tank 3, and a connecting pipe 7 is connected between adjacent two UF2 tanks 3, UF1 tanks 4 and electrophoresis tanks 5.

[0014] In this embodiment, the ultrafiltration liquid preparation system equipment body 1 including the fresh ultrafiltrate storage tank 2 is installed on a ±4.00m small platform, and the intermediate power pump group, the storage tank liquid level control system, and the valve group at the pump group inlet and outlet are cancelled. The fresh ultrafiltrate storage tank 2 is placed at a high position, and an overflow port is opened above the fresh ultrafiltrate storage tank 2. The ultrafiltrate is returned to the UF2 tank 3 through the high-position unpowered overflow pipe 6, and then overflows from the UF2 tank 3 to the UF1 tank 4, and then overflows from the UF1 tank 4 to the electrophoresis tank 5. The gravity reflux of the tank liquid can be stably and reliably achieved, and the balance of a large cycle of the electrophoresis process is maintained, thereby enhancing the stability and reliability of the system, reducing energy consumption, reducing the ground space required for the low position, and ensuring the high stability and reliability of the electrophoresis process.

[0015] As a technical optimization solution of the present invention, the height of the fresh ultrafiltrate storage tank 2 is higher than that of the UF2 tank 3 , the UF1 tank 4 and the electrophoresis tank 5 .

[0016] In this embodiment, the height of the fresh ultrafiltrate storage tank 2 is higher than that of the UF2 tank 3, the UF1 tank 4 and the electrophoresis tank 5, so that the tank liquid reflux is achieved by gravity.

[0017] As a technical optimization solution of the present invention, the UF2 tank 3, the UF1 tank 4 and the electrophoresis tank 5 are located at the same level and are evenly distributed.

[0018] In this embodiment, the UF2 tank 3 , the UF1 tank 4 and the electrophoresis tank 5 are located at the same level and are evenly distributed, so that the ultrafiltrate can be introduced into the electrophoresis tank 5 in sequence.

[0019] As a technical optimization solution of the present invention, the two connecting pipes 7 are both arranged at an inclination.

[0020] In this embodiment, the two connecting pipes 7 are both arranged at an angle, so that the filtrate overflows by utilizing gravity.

[0021] Working principle: The main body 1 of the ultrafiltration liquid preparation system equipment including the fresh ultrafiltrate storage tank 2 is installed on a ±4.00m small platform, and the middle power pump group, storage tank liquid level control system and the valve group of the pump group inlet and outlet are cancelled. The fresh ultrafiltrate storage tank 2 is placed at a high position, and an overflow port is opened above the fresh ultrafiltrate storage tank 2. The liquid flows back to the UF2 tank 3 through the high-position unpowered overflow pipeline 6, and then overflows from the UF2 tank 3 to the UF1 tank 4, and then overflows from the UF1 tank 4 to the electrophoresis tank 5. This can stably and reliably realize the gravity reflux of the tank liquid, maintain the balance of a large cycle of the electrophoresis process, enhance the stability and reliability of the system, reduce energy consumption, reduce the ground space required for the low position, and ensure the high stability and reliability of the electrophoresis process.

[0022] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for reflux fresh ultrafiltrate produced by an ultrafiltration liquid preparation system, comprising an ultrafiltration liquid preparation system equipment body (1), characterized in that: A fresh ultrafiltrate storage tank (2) is provided on one side of the ultrafiltration liquid preparation system equipment body (1); a UF2 tank (3), a UF1 tank (4) and an electrophoresis tank (5) are provided on one side of the fresh ultrafiltrate storage tank (2); a high-level unpowered overflow pipeline (6) is connected between the fresh ultrafiltrate storage tank (2) and the UF2 tank (3); and connecting pipes (7) are connected between adjacent two of the UF2 tank (3), the UF1 tank (4) and the electrophoresis tank (5).

2. The fresh ultrafiltrate reflux device produced by the ultrafiltration liquid preparation system according to claim 1, characterized in that: The height of the fresh ultrafiltrate storage tank (2) is higher than the heights of the UF2 tank (3), the UF1 tank (4) and the electrophoresis tank (5).

3. The fresh ultrafiltrate reflux device produced by the ultrafiltration liquid preparation system according to claim 1, characterized in that: The UF2 tank (3), UF1 tank (4) and electrophoresis tank (5) are located at the same level and are evenly distributed.

4. The fresh ultrafiltrate reflux device produced by the ultrafiltration liquid preparation system according to claim 1, characterized in that: The two connecting pipes (7) are both arranged at an inclination.

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