CN218509728U - Water supply device of self-priming pump - Google Patents

Abstract

The utility model discloses a self-priming pump water supply device, which comprises a water storage tank and a pump body. The pump body is provided with a pump cavity, and one end of the water storage tank is connected with the upper end of the pump cavity in the pump body through a water supply unit. . When the device needs to add water to the pump body, it first controls the first electric control valve to open. After opening, the water in the water storage tank will flow into the pump cavity. When the water is full, the flow rate of the water flow will slow down. , through the electronic flowmeter to sense the current flow rate of water flow, when the flow rate reaches the set range, at this time, the first electric control valve can be closed, and an automatic water filling operation can be completed; when the liquid level inside the water storage tank is lower than The liquid level meter at the lower end, at this time, the second electric control valve can be automatically opened, and in the process of pumping water, it can also automatically replenish water into the water storage tank through the connecting pipe. When the liquid level meter at the upper end is reached, the second electric control valve It can be turned off automatically, and water addition and replenishment are all controlled automatically, which improves the overall use effect.

Description

A self-priming pump water supply device

technical field

The utility model belongs to the technical field of self-priming pumps, in particular to a self-priming pump water supply device.

Background technique

The self-priming pump belongs to the centrifugal pump, which drives the impeller to rotate through the motor, and the impeller drives the water to flow through the centrifugal force to work. Before the self-priming pump runs, there needs to be a certain amount of water in the pump cavity. After the pump is started, due to the rotation of the impeller, the air and water in the suction line are fully mixed and discharged to the air-water separation chamber.

In the Chinese patent application number 202011261999.7, a self-priming pump is specifically disclosed, which relates to the technical field of water pumps. Connected water inlet, water outlet and water replenishment port. By setting the water storage tank, the conduit and the control valve, the frequency of the operator to fetch water and refill is reduced, making the use of the self-priming pump more convenient.

However, the applicant found that when adding water, the user often needs to keep an eye on whether the water in the pump chamber is filled up, and when adding water to the pump chamber and replenishing water in the water storage tank, it is very difficult to manually open and close the valve. inconvenient.

In view of this, a self-priming pump water supply device is proposed.

Utility model content

The purpose of this utility model is to provide a self-priming pump water supply device in order to solve the above-mentioned problems.

The technical scheme adopted by the utility model is as follows: a self-priming pump water supply device, including a water storage tank and a pump body, the pump body is provided with a pump cavity, and one end of the water storage tank is connected to the pump cavity in the pump body through the water supply unit. The upper end is connected;

The water supply unit includes a water supply pipe, and the water supply pipe is equipped with an electronic flow meter and a first electric control valve;

A detachable filter screen is installed in the water storage tank under one side of the water supply pipe, and a liquid level gauge is installed in the upper and lower sides of the water storage tank.

In a preferred embodiment, the water storage tank and the pump body are fixedly installed on the installation base plate, and a drive motor is installed on the installation base plate on the left side of the pump body, and the pump chamber in the pump body is rotatably connected There is an impeller, and the rotating end of the driving motor runs through one side of the pump body and is connected with the impeller.

In a preferred embodiment, the upper end of the pump body is fixedly connected with an outlet pipe that communicates with the pump chamber, one end of the outlet pipe communicates with a connecting pipe, and the other end of the connecting pipe connects with the upper end of the water storage tank Pass.

In a preferred embodiment, a second electric control valve is installed on the connecting pipe, and the second electric control valve, the liquid level gauge, the first electric control valve and the electronic flow meter are electrically connected to the external PLC terminal.

In a preferred embodiment, the upper end of the water storage tank is provided with an air guide hole, and the upper and lower ends of one side of the water storage tank are respectively connected with a water inlet and a sewage outlet with a valve. One side of the pump body A water inlet pipe communicating with the pump cavity is fixedly connected.

In a preferred embodiment, the water inlet is located directly above the filter screen, the liquid level gauge is located directly below the filter screen, and a guide cavity is reserved in the water storage tank to meet the filter screen insertion, so A maintenance handle is installed on one end of the filter screen, and the maintenance handle is installed on the outside of the water storage tank through screws.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

1. In the utility model, when adding water to the pump body, firstly control the opening of the first electric control valve. After opening, the water in the water storage tank will flow into the pump chamber. When the water is filled up, the flow rate of the water flow at this time It will slow down, and the current flow rate is sensed by the electronic flowmeter. When the flow rate reaches the set range, at this time, the first electronic control valve can be closed, and an automatic water addition operation can be completed. When adding water, there is no need The staff stares.

2. In the utility model, when it is necessary to add water to the water storage tank, water can be added to the interior through the water inlet, or water can be automatically replenished into the water storage tank through the connecting pipe. When the water reaches the position of the liquid level gauge at the upper end, the second The electric control valve can be automatically closed, and the automatic water replenishment operation can also be realized, which improves the overall use effect.

3. In the utility model, when replenishing water into the water storage tank, the impurities that may exist in the water can be filtered through the detachable filter net to prevent impurities and foreign matter from blocking the pipeline.

Description of drawings

Fig. 1 is the overall three-dimensional structure schematic diagram of the utility model;

Fig. 2 is a schematic diagram of the three-dimensional structure of the water supply unit of the present invention;

Fig. 3 is a schematic diagram of a cross-sectional plane structure of a water storage tank in the present invention.

Marks in the figure: 1-water outlet pipe, 2-water supply unit, 21-electronic flowmeter, 22-water supply pipe, 23-first electric control valve, 3-pump body, 4-drive motor, 5-installation base plate, 6- Connecting pipe, 7-air guide hole, 8-water storage tank, 9-maintenance handle, 10-liquid level gauge, 11-filter screen, 12-water inlet pipe.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Referring to Figure 1-3, a self-priming pump water supply device includes a water storage tank 8 and a pump body 3, the pump body 3 is provided with a pump cavity, and one end of the water storage tank 8 passes through the water supply unit 2 and the pump cavity in the pump body 3 The upper end of the water supply unit 2 is connected to the water supply pipe 22, and the water supply pipe 22 is equipped with an electronic flow meter 21 and a first electric control valve 23. When adding water to the pump body 3, first control the first electric control valve 23 to open, After opening, the water in the water storage tank 8 will flow into the pump cavity. When the water is full, the flow velocity of the water flow will slow down. The current flow velocity of the water flow will be sensed by the electronic flowmeter 21. When the flow velocity reaches the set range , at this moment, the first electric control valve 23 just can be closed, just can finish an automatic water adding operation.

Referring to Fig. 3, a detachable filter screen 11 is installed in the water storage tank 8 under one side of the water supply pipe 22. Filter to prevent impurities and foreign matter from clogging the pipes.

Liquid level gauges 10 are installed on the upper and lower sides of the water storage tank 8, and the liquid level inside the water storage tank 8 can be detected by the liquid level gauge 10. and stop adding water level.

In this embodiment, the water storage tank 8 and the pump body 3 are fixedly installed on the installation base plate 5, and the drive motor 4 is installed on the installation base plate 5 on the right left side of the pump body 3, and the pump chamber in the pump body 3 is rotatably connected with an impeller. , the rotating end of the drive motor 4 runs through one side of the pump body 3 and is connected with the impeller, the drive motor 4 drives the impeller to rotate to generate centrifugal force, and the impeller drives water to flow through the centrifugal force to work.

Referring to Fig. 1, the upper end of the pump body 3 is fixedly connected with an outlet pipe 1 communicating with the pump cavity, one end of the outlet pipe 1 communicates with the connecting pipe 6, and the other end of the connecting pipe 6 communicates with the upper end of the water storage tank 8, and the connecting pipe 6 A second electronically controlled valve is installed on the top, and when the liquid level inside the water storage tank 8 is lower than the liquid level gauge 10 at the lower end, at this time, the second electronically controlled valve can be automatically opened. Automatic water replenishment in the water storage tank 8, when reaching the position of the liquid level gauge 10 at the upper end, the second electric control valve can be automatically closed, and the automatic water replenishment operation can be completed.

In this embodiment, the second electronically controlled valve, the liquid level gauge 10 , the first electronically controlled valve 23 and the electronic flowmeter 21 are electrically connected to the external PLC terminal, and the overall work of the device is controlled through the PLC terminal.

It should be noted that the electrical connection with the PLC terminal is a commonly used connection method in the prior art, and will not be described in detail.

1, the upper end of the water storage tank 8 is provided with an air guide hole 7, and the air guide hole 7 can discharge the gas in the water storage tank in time to balance the pressure in the water storage tank 8 and the outside world.

Referring to Fig. 1, the upper and lower ends of one side of the water storage tank 8 are respectively connected with a water inlet and a sewage outlet with a valve, through which water can be added to the water storage tank 8 when there is no water in the water storage tank 8, and the pump body 3 One side of the pump is fixedly connected with a water inlet pipe 12 communicating with the pump chamber.

In this embodiment, the water inlet is located directly above the filter screen 11, the liquid level gauge 10 is located directly below the filter screen 11, and a guide cavity for the insertion of the filter screen 11 is reserved in the water storage tank 8. One end of the filter screen 11 A maintenance handle 9 is installed, and the maintenance handle 9 is installed on the outside of the water storage tank 8 through screws. When there are too many impurities or foreign objects on the filter screen 11, the mounting screws can be loosened, and the filter screen 11 can be removed by the maintenance handle 9. The net 11 is cleaned to meet the filtering effect used in the latter stage.

When the device needs to add water to the pump body 3, firstly control the first electric control valve 23 to open, after opening, the water in the water storage tank 8 will flow into the pump cavity, when the water is full, the flow rate of the water flow at this time It will slow down, and the current water flow velocity is sensed by the electronic flowmeter 21. When the flow velocity reaches the set range, at this moment, the first electronic control valve 23 can be closed, and an automatic water addition operation can be completed; when the water storage tank 8 When the internal liquid level is lower than the liquid level gauge 10 at the lower end, at this time, the second electric control valve can be automatically opened, and in the process of pumping water, it can also automatically replenish water into the water storage tank 8 through the connecting pipe 6 to reach the liquid level at the upper end. When the potentiometer is in the 10 position, the second electric control valve can be automatically closed, and water addition and replenishment are all controlled automatically, which improves the overall use effect.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (6)

1. A self-priming pump water supply device, comprising a water storage tank (8) and a pump body (3), is characterized in that: the pump body (3) is provided with a pump cavity, and the water storage tank (8) One end communicates with the upper end of the pump cavity in the pump body (3) through the water supply unit (2); The water supply unit (2) includes a water supply pipe (22), and the water supply pipe (22) is equipped with an electronic flow meter (21) and a first electric control valve (23); A detachable filter screen (11) is installed in the water storage tank (8) under one side of the water supply pipe (22), and a liquid level gauge (10) is installed in the upper and lower sides of the water storage tank (8). . 2. A self-priming pump water supply device according to claim 1, characterized in that: the water storage tank (8) and the pump body (3) are fixedly installed on the installation base plate (5), and the pump body (3) ) is installed with a drive motor (4) on the installation base plate (5) on the left side, the pump cavity in the pump body (3) is connected with an impeller in rotation, and the rotating end of the drive motor (4) runs through the pump body (3) One side is connected with the impeller. 3. A self-priming pump water supply device according to claim 1, characterized in that: the upper end of the pump body (3) is fixedly connected with a water outlet pipe (1) communicating with the pump cavity, and the water outlet pipe ( One end of 1) communicates with the connecting pipe (6), and the other end of the connecting pipe (6) communicates with the upper end of the water storage tank (8). 4. A self-priming pump water supply device as claimed in claim 3, characterized in that: the connecting pipe (6) is equipped with a second electric control valve, the second electric control valve, the liquid level gauge (10) , the first electric control valve (23) and the electronic flow meter (21) are electrically connected to the external PLC terminal. 5. A self-priming pump water supply device according to claim 1, characterized in that: the upper end of the water storage tank (8) is provided with an air guide hole (7), and one side of the water storage tank (8) The upper and lower ends are respectively communicated with a water inlet and a sewage outlet with valves, and one side of the pump body (3) is fixedly connected with a water inlet pipe (12) communicated with the pump cavity. 6. A self-priming pump water supply device according to claim 5, characterized in that: the water inlet is located directly above the filter screen (11), and the liquid level gauges (10) are all located on the filter screen (11) Directly below the water storage tank (8), there is reserved a guide cavity for the insertion of the filter screen (11), and a maintenance handle (9) is installed on one end of the filter screen (11), and the maintenance handle (9) ) is installed on the outside of the water storage tank (8) by screws.

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