Non-return device of centrifugal pump

Abstract

The embodiment of the invention discloses a non-return device of a centrifugal pump. The non-return device of the centrifugal pump comprises a transfer water tank, a non-return pipeline is connected with the water inlet end of the transfer water tank, a pump body is connected with the water outlet end of the transfer water tank through a water outlet pipeline, a pump body non-return structure is arranged at the joint of the pump body and the water outlet pipeline, a water level warning structure is arranged in the transfer water tank, a water supplementing opening is formed in the transfer water tank, a water supplementing pump is connected with the water supplementing opening, the water supplementing pump is connected with the non-return pipeline through a water supplementing pipeline, the water supplementing pump is electrically connected with the water level warning structure, through the transfer water tank and the pump body non-return structure connected with the pump body, the sealing performance of the pump body is improved, normal use is guaranteed when the water pump is restarted after the water pump is shutdown, water can be timely supplemented for the transfer water tankthrough the water level warning structure arranged in the transfer water tank, and the problem of the idle of the pump body caused by leakage is effectively avoided.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of centrifugal pumps, in particular to a check device for centrifugal pumps. Background technique [0002] The water pump is used to transport water to the mixing machine, which is convenient for mixing and stirring the gypsum board. The water pump is a machine that transports liquid or pressurizes the liquid. The existing water pump includes a pump casing and an impeller installed in the pump casing. The work of the water pump The principle is that the pump is filled with liquid, and the motor drives the impeller to rotate at a high speed through the shaft. The water in the impeller channel rotates at a high speed under the drive of the impeller, generating centrifugal force, throwing it to the periphery and flowing into the pump casing, generating high pressure, and the high-pressure water flows out from the outlet. When the liquid is thrown from the center of the impeller to the ...

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Problems solved by technology

[0005] For this reason, the embodiment of the present invention provides a check device for a centrifugal pump. Through the transfer water tank and the pump body check structure connected to the pump body, the sealing performance of the pump body is improved, and the normal use of the pump is guaranteed after the pump is stopped. The water level warning structure in the transfer water tank can replenish water for the transfer water tank in time, effectively avoiding the idling problem of the pump body caused by leakage, and solving the air mixed in the water pump caused by the poor seal of the check valve in the prior art, which causes the working efficiency of the water pump low problem

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