A self-priming centrifugal pump system driven by an air compressor

Abstract

The invention provides a self-priming centrifugal pump system driven by an air compressor. The self-priming centrifugal pump system comprises a self-priming exhaust system, a pump body, a suction chamber and a driving device. The driving device comprises the air compressor, an outer vortex chamber, an inner vortex chamber, a base and a thin plate group. The thin plate group is fixed to a main shaft of the pump body. Gas in the air compressor enters the inner vortex chamber and drives thin plates to drive the main shaft to rotate so as to drive the pump to move. Gas from the outer vortex chamber enters the self-priming exhaust system. The self-priming exhaust system comprises multiple spray nozzles and partition sleeves, wherein the spray nozzles and the partition sleeves are arranged at intervals in a connected manner, the cross sections of the spray nozzles and the partition sleeves are oval, the attached end faces are diagonal planes, and multiple entrainment holes are formed in thepartition sleeves and communicate with the suction chamber. The suction chamber communicates with an inlet pipeline of the pump. By the adoption of the self-priming centrifugal pump system, self-priming of air in a pump chamber can be achieved, secondary utilization of energy is achieved, and the energy utilization rate is increased.

Description

technical field [0001] The invention relates to a centrifugal pump, in particular to a self-priming centrifugal pump system driven by an air compressor. Background technique [0002] As an important drainage machine, self-priming centrifugal pump is widely used in forest firefighting, flood fighting and drainage and other emergency rescue places, and plays an indispensable role in ensuring the safety of people's lives and property. However, at present, internal mixing and external mixing self-priming centrifugal pumps are mostly used in our country. Among them, although the internal mixing self-priming centrifugal pump has high efficiency, its structure is complex and its operation is unstable; while the external mixing self-priming centrifugal pump has better self-priming performance, but its efficiency is low. At the same time, the use of jet-type self-priming centrifugal pumps generally requires additional auxiliary devices, and is equipped with at least two working moto...

AI Technical Summary

Problems solved by technology

Among them, although the internal mixing self-priming centrifugal pump has high efficiency, its structure is complex and its operation is unstable; while the external mixing self-priming centrifugal pump has better self-priming performance, but its efficiency is low

At the same time, the use of jet-type self-priming centrifugal pumps generally requires additional auxiliary devices, and it is equipped with at least two working motors, which is noisy and the operation of the whole machine is relatively complicated.

Images