CN219733647U - Nickel electrolysis pit pump vacuum drainage tank - Google Patents

Abstract

The utility model discloses a vacuum water diversion tank of a nickel electrolysis pit pump, which comprises a tank body, wherein the top of the tank body is provided with a water supplementing port and a float level gauge mounting port, and the bottom of the tank body is provided with a sewage outlet; a water inlet is arranged above the side part of the tank body, and a first filter screen is arranged on the water inlet; a water outlet is arranged below the side part of the tank body, a second filter screen is arranged on the water outlet, and the mesh diameter of the second filter screen is smaller than that of the first filter screen. Compared with the traditional vacuum water diversion tank with the built-in filter cartridge, the vacuum water diversion tank shortens the maintenance time, facilitates the operation of post staff and reduces the labor intensity.

Description

A nickel electrolytic pit pump vacuum water diversion tank

Technical field

The utility model relates to the technical field of vacuum water diversion, and specifically relates to a nickel electrolytic pit pump vacuum water diversion tank.

Background technique

The current corrosion-resistant and wear-resistant mortar pumps are centrifugal pumps, which are mainly composed of motors, pump casings, pump covers, impellers, auxiliary impellers, bearing seats, couplings, seals and other components. When the pump casing is filled with liquid, the motor drives the impeller to rotate to generate centrifugal force, which throws the liquid in the impeller toward the pump casing at high speed, and then enters the pump outlet pipe to transport the solution to the corresponding tank. The pumps used for ground wastewater collection are all cantilever-type single-stage single-suction centrifugal pumps. They are installed above the liquid level. There are problems such as failure to pump liquid and difficulty in pumping liquid when restarted after stopping the pump. In this case, multiple starts are required. And the water diversion effect is not good. In addition, if the pump is installed far away from the start control switch, two people need to work together to operate it. The ground wastewater collection efficiency is low and the labor intensity is high.

Chinese utility model patent CN201120296127.4 discloses an automatic replenishing vacuum water diversion tank for industrial liquids. The lower mouth is placed below the liquid level of the industrial liquid container and the water inlet pipe passes through the bottom of the water diversion tank and the upper mouth is located at the upper part of the water diversion tank body cavity. The water injection port It is set on the top surface of the water diversion tank, and the water outlet is set on the lower side of the water diversion tank. The water outlet is connected to the industrial centrifugal pump. There is a submersible pump placed at the bottom of the industrial liquid container. There is a water injection pipe connecting the submersible pump and the water injection port. The water injection pipe is connected to the water injection port. A water injection solenoid valve is installed at the connection point of the water injection port; a float level control device is provided outside the water diversion tank, and the float level control device is electrically connected to the water injection solenoid valve and the submersible pump. The utility model overcomes the defect of the existing device that requires manual replenishment when the industrial liquid level in the water diversion tank cannot be maintained in a normal state. It is automatically controlled, does not affect normal production, saves time and effort, is easy to install, and is reliable in operation.

However, in actual use of the above device, since there is no filtering device, the water pump can operate normally when pumping relatively clean sewage. However, when pumping sewage, due to the large impurity content in it, it is easy to cause the water pump to be blocked, so it is necessary to Frequent dredging and maintenance are not convenient for actual production and use.

Utility model content

The purpose of this utility model is to provide a nickel electrolytic pit pump vacuum water diversion tank to solve the problems existing in the above background technology.

In order to achieve the above purpose, the present utility model adopts the following technical solutions:

A nickel electrolytic pit pump vacuum water diversion tank includes a tank body. The top of the tank body is provided with a water replenishment port and a float level gauge installation port. The bottom of the tank body is provided with a sewage outlet; a water inlet is provided above the side of the tank body. A first filter screen is installed on the water inlet; a water outlet is provided below the side of the tank; a second filter screen is installed on the water outlet; the mesh diameter of the second filter screen is smaller than the mesh diameter of the first filter screen.

Compared with the existing technology, the utility model has the following beneficial effects:

By arranging the first filter screen and the second filter screen at the flange connection between the water inlet and the water outlet, the impurity content in the vacuum water diversion tank is reduced, and the risk of water pump clogging is reduced; at the same time, because the mesh diameter of the first filter screen is larger than that of the second filter screen, The mesh diameter of the filter ensures that the liquid passing efficiency at the water inlet is greater than the liquid passing efficiency at the water outlet under the same pipe diameter. It not only filters slag but also avoids multiple water refills, improving the operational consistency of the vacuum water diversion system.

Description of the drawings

Figure 1 is a schematic structural diagram of the utility model.

In the picture, 1-tank, 2-water supply port, 3-float level gauge installation port, 4-sewage outlet, 5-water inlet, 6-water outlet, 7-first filter, 8-second filter , 9-Liquid level observation window.

Detailed ways

The utility model will be further explained below in conjunction with the accompanying drawings.

As shown in Figure 1, a nickel electrolytic pit pump vacuum water diversion tank includes a tank 1. The top of the tank 1 is provided with a water replenishing port 2 and a float level gauge installation port 3. The bottom of the tank 1 is provided with a sewage outlet 4; A water inlet 5 is provided above the side of the tank 1, and a first filter 7 is installed on the water inlet 5; a water outlet 6 is provided below the side of the tank 1, and a second filter 8 is installed on the water outlet 6. The mesh diameter of the filter screen 8 is smaller than the mesh diameter of the first filter screen 7 . The tank 1 is also provided with a liquid level observation window 9, and the liquid level observation window 9 is provided with a scale.

The working principle of this utility model is as follows: while keeping the technical parameters, installation position, structure and size of the in-situ pit pump unchanged, a vacuum water diversion tank is installed at the front end of the inlet of the pit pump. Before starting the pump, Water fills the vacuum diversion tank and pump chamber. After the pump is started, the wastewater in the vacuum diversion tank is first extracted. As the liquid level in the tank drops, a vacuum is formed in the tank. When the pressure is lower than the atmospheric pressure of the pit liquid surface, the wastewater Follow the water inlet pipe into the vacuum water tank. When the liquid discharge from the pump and the liquid inlet from the suction pipe reach a balance, the liquid level in the vacuum water diversion tank remains stable, that is, a stable working state is reached. The wastewater in the pit enters the vacuum water diversion tank along the suction pipe and follows the operation of the pump. Transport wastewater to appropriate tanks.

When in use, the vacuum water diversion tank of the present invention is incorporated into the centrifugal pump water pipeline as required, and water is injected to the highest water level. The float level gauge installed in the float level gauge installation port 3 is connected to the water supply pipeline connected to the water supply port 2. Linkage control is carried out through the DCS industrial control system; once the water level in tank 1 is lower than the designed minimum water level (marked by the lower triangle in the figure), the float level gauge sends a water replenishment signal to the DCS industrial control system and automatically opens the water replenishment pipeline. Port 2 replenishes water into tank 1; when the water replenishment reaches the highest water level (marked by the upper triangle in the figure), the float level gauge sends a water stop signal to the DCS industrial control system, automatically closing the water replenishment pipeline and stopping water replenishment. In addition, when the float level gauge fails, the water level in the tank 1 can be observed through the liquid level observation window 9 and water can be replenished manually to ensure that the pumping operation is not affected. The normal working water level of the vacuum water diversion tank is between the highest water level and the lowest water level.

When the centrifugal pump is started to pump water, the large particle impurities in the wastewater are filtered by the first filter 7 set on the water inlet 5. Only a small amount of small particle impurities enter the tank 1. The wastewater in the tank 1 passes through the first filter 7 of the water outlet 6. The second filter screen 8 is filtered before entering the centrifugal pump, thereby preventing the centrifugal pump from being blocked; the mesh diameter of the first filter screen 7 is larger than the mesh diameter of the second filter screen 8, ensuring that the liquid in the water inlet can pass through under the same pipe diameter. The efficiency is greater than the liquid passage efficiency of the water outlet. It not only filters slag but also prevents multiple water refills and improves the operational consistency of the vacuum water diversion system. After the centrifugal pump stops pumping water, since the first filter screen 7 is installed at the mouth of the water inlet pipe and is located underwater, some impurities in front of the first filter screen 7 will flow back into the waste pool with the water flow, thereby avoiding clogging of the first filter screen. If you need to clean and replace the first filter screen 7 and the second filter screen 8, you only need to open the pipe flange connection on the water inlet 5 and the water outlet 6 to clean and replace them; compared with the traditional built-in filter The vacuum water diversion tank of the utility model shortens the maintenance time, facilitates the operation of the employees at the post, and reduces the labor intensity.

After long-term operation, if you need to clean the vacuum water diversion tank, you only need to open the drain port 4 at the bottom of the tank 1 to flush the vacuum water diversion tank. After cleaning, close the sewage outlet 4 and refill the water to the highest water level.

Claims (2)

1. A nickel electrolytic pit pump vacuum water diversion tank, characterized in that: it includes a tank body (1), the top of the tank body (1) is provided with a water supply port (2) and a float level gauge installation port (3), A sewage outlet (4) is provided at the bottom of the tank (1); a water inlet (5) is provided above the side of the tank (1), and a first filter (7) is installed on the water inlet (5); the tank (1) ) A water outlet (6) is provided below the side, and a second filter (8) is installed on the water outlet (6). The mesh diameter of the second filter (8) is smaller than the mesh of the first filter (7). diameter. 2. A nickel electrolytic pit pump vacuum water diversion tank according to claim 1, characterized in that: the tank (1) is also provided with a liquid level observation window (9), and the liquid level observation window (9) is Set with scale.