Automatic circulating continuous pump filling device

Abstract

The utility model discloses an automatic circulation continuous pump filling device, which belongs to the technical field of centrifugal pumps, and comprises a centrifugal pump and a water taking pool for supplying water to the centrifugal pump, a water storage tank is arranged above the centrifugal pump, a submersible pump is arranged in the water taking pool, and the submersible pump is connected with a water inlet of the water storage tank through a pipeline. The top of the water storage tank is provided with an overflow port, the overflow port is connected back to the water taking tank through a pipeline, and a water outlet of the water storage tank is connected with a pump filling port of the centrifugal pump through a pipeline and is provided with a booster pump. The problem that manual pump filling is needed after the centrifugal pump is stopped is solved, the centrifugal pump set is started at any time, the problems that the pump filling time of the pump set is long and time and labor are wasted are solved, and meanwhile energy waste caused by using tap water to fill the pump is reduced by filling the pump with water in the water pool.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, in particular to an automatic circulation continuous filling pump device. Background Art

[0002] Before using a centrifugal pump, it is necessary to perform a pump priming operation. The pump body and the suction pipe must be filled with liquid, and the air in the pump body must be exhausted before the centrifugal pump can be started. During actual on-site use, pump priming causes a large workload for operators, and it is easy for the centrifugal pump to fail to be used due to untimely pump priming.

[0003] Therefore, there is a need for an automatic circulating pump filling device that can realize automatic and continuous filling of the centrifugal pump for 24 hours. It not only eliminates the need for continuous operation by the operator and solves the problem of failure caused by improper filling of the centrifugal pump, but also the centrifugal pump can be started at any time without waiting for filling, thereby improving production efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an automatic circulation continuous pump filling device, which can realize 24-hour automatic continuous pump filling of the centrifugal pump, and the centrifugal pump is always in a state where the pump body is full of liquid, and the staff does not need to perform the pump filling operation.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an automatic circulation continuous pump filling device, including a centrifugal pump and a water intake pool for supplying water to the centrifugal pump, a water storage tank is arranged above the centrifugal pump, a submersible pump is arranged in the water intake pool, the submersible pump is connected to the water inlet of the water storage tank through a pipeline, the water in the water intake pool is pumped into the water storage tank, an overflow port is arranged on the top of the water storage tank, the overflow port is connected back to the water intake pool through a pipeline, the water outlet of the water storage tank and the filling port of the centrifugal pump are connected by a pipeline and a booster pump is arranged.

[0006] A further improvement of the technical solution of the utility model is that the booster pump is a fully automatic variable frequency booster pump, which can set the pressure and continuously output a constant pressure.

[0007] A further improvement of the technical solution of the utility model is that a filter screen is arranged on the filling port of the centrifugal pump.

[0008] A further improvement of the technical solution of the utility model is that the water storage tank is made of stainless steel, and a water level detector is arranged on the top of the water storage tank to detect the water level in real time.

[0009] A further improvement of the technical solution of the utility model is that the water level detector is controlled by a PLC system, and when the water level does not meet the standard, the PLC system issues an alarm.

[0010] A further improvement of the technical solution of the utility model is that the switch of the centrifugal pump, the switch of the submersible pump, the switch of the booster pump and the pressure setting are all controlled by the PLC system to achieve automatic control.

[0011] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is: by setting the water storage tank above the centrifugal pump, and setting a submersible pump and a booster pump at the same time, the overflow port at the top of the water storage tank is connected back to the water intake pool through a pipeline, so that the water in the water intake pool can be circulated between the water storage tank and the centrifugal pump, and then the continuous operation of the submersible pump and the booster pump is coordinated to keep the circulation continuous, so that the centrifugal pump has water 24 hours a day, and the problem of the centrifugal pump needing to be primed before each start is solved, the preparation work before the pump group is started is reduced, and the priming operation is cancelled. By setting a booster pump, not only can the water inlet of the water storage tank be pressurized, the defect of poor priming effect using only atmospheric pressure is overcome, and the booster pump can also play the role of a one-way valve. When the submersible pump fails and the water level in the water storage tank is low, due to the existence of the single-phase booster pump, the centrifugal pump will not pump water into the water storage tank when it is working, so as to avoid the empty pipe in front of the pump causing the centrifugal pump to fail to start, thereby causing the failure of no water available at the water use location. By setting up a water level detector, the water level of the water tank can be monitored in real time. At the same time, the PLC system is used for control, with a high degree of automation. At the same time, when a failure occurs in each device, an alarm can be issued in time to solve the problem without delaying the production process. The water in the pool is used to fill the pump, and the water is recycled, reducing the energy waste caused by using tap water to fill the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a structural schematic diagram of the utility model; DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the embodiments:

[0015] like Figure 1The figure shows a schematic diagram of the structure of an automatic circulation continuous pumping device, which includes a centrifugal pump, the water inlet of the centrifugal pump is connected to a water intake pool at a lower position, and the water intake pool supplies water to the centrifugal pump. A water storage tank is arranged above the centrifugal pump, and the water storage tank is rectangular in shape and made of stainless steel. A submersible pump is arranged in the water intake pool, and the submersible pump is connected to the water inlet of the water storage tank in mid-air through a pipeline, and the water in the water intake pool is pumped into the water storage tank, thereby filling the water storage tank. An overflow port is arranged at the top of the water storage tank, and the overflow port is connected back to the water intake pool through a pipeline. When the submersible pump fills the water storage tank with water, the water in the water storage tank can flow back to the water intake pool from the overflow port, so as to realize the dynamic full filling of water in the water storage tank. A water outlet is arranged at the bottom of the water storage tank, and a pipeline is connected to the water outlet, and a booster pump is arranged on the pipeline, and the terminal of the pipeline leads to the filling port of the centrifugal pump. The booster pump pumps the water in the water tank into the filling port of the centrifugal pump, and then fills the centrifugal pump body. After filling the pump body, the water will flow to the water intake pool to realize the through circulation of water. Therefore, with the help of the 24-hour continuous operation of the booster pump and the submersible pump, it can ensure that the centrifugal pump body is full of water 24 hours a day and maintains a saturated state, so that the centrifugal pump unit can be started at any time.

[0016] The booster pump is a fully automatic variable frequency booster pump. When in use, set the specific pressure, maintain constant pressure output, and maintain the dynamic balance of water between the water storage tank and the water intake pool. A filter is set on the filling port of the centrifugal pump to filter the water in the water intake pool, that is, use the water in the water pool to fill the pump, and recycle the water, reducing the energy waste caused by using tap water to fill the pump, and the use of the centrifugal pump will not be affected by the water quality in the pool. A water level detector is set on the top of the water tank to detect the water level in real time. When the water level is low and does not meet the standard, it means that the submersible pump has a fault, affecting the dynamic balance of the water in the water storage tank. The water level detector is controlled by the PLC system. When the water level does not meet the standard, the PLC system will promptly send an alarm signal to remind the staff to inspect the submersible pump.

[0017] The new model is connected to the PLC control system as a whole. The switch of the centrifugal pump, the switch of the submersible pump, the switch of the booster pump and the pressure setting are all controlled by the PLC system, which can realize the overall automatic control. The utility model has a good effect. On the basis of the original equipment, it solves the problem of manual priming of the centrifugal pump after it is deactivated, and the centrifugal pump group can be started at any time, solving the problem of long time and labor for priming the pump group. At the same time, by using the pool water to prime the pump, the energy waste caused by using tap water to prime the pump is reduced.

[0018] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An automatic circulation continuous pumping device, comprising a centrifugal pump and a water intake pool for supplying water to the centrifugal pump, characterized in that: A water storage tank is arranged above the centrifugal pump, and a submersible pump is arranged in the water intake pool. The submersible pump is connected to the water inlet of the water storage tank through a pipeline, and the water in the water intake pool is pumped into the water storage tank. An overflow port is arranged on the top of the water storage tank, and the overflow port is connected back to the water intake pool through a pipeline. The water outlet of the water storage tank and the filling port of the centrifugal pump are connected by a pipeline and a booster pump is arranged.

2. The automatic circulation continuous priming pump device according to claim 1, characterized in that: The booster pump is a fully automatic variable frequency booster pump that can set the pressure and output continuous constant pressure.

3. The automatic circulation continuous priming pump device according to claim 2, characterized in that: A filter screen is provided on the filling port of the centrifugal pump.

4. The automatic circulation continuous priming pump device according to claim 3, characterized in that: The water tank is made of stainless steel, and a water level detector is installed on the top of the water tank to detect the water level in real time.

5. The automatic circulation continuous priming pump device according to claim 4, characterized in that: The water level detector is controlled by the PLC system. When the water level does not meet the standard, the PLC system will give an alarm.

6. An automatic circulation continuous priming pump device according to any one of claims 1 to 5, characterized in that: The switch of the centrifugal pump, the switch of the submersible pump, the switch of the booster pump and the pressure setting are all controlled by the PLC system to achieve automatic control.

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