Combined type fast self-absorption centrifugal pump

Abstract

The invention discloses a combined type fast self-absorption centrifugal pump which comprises a pump body. The pump body comprises an inducer (2), a centrifugal pump impeller (4), a mechanical sealing structure (5), a main shaft (6), a liquid ring wheel (8), a transmission wheel (9) and an electromagnetic clutch (10). One end of the main shaft (6) is a power input end, and the other end of the main shaft (6) is sequentially fixedly connected with the inducer (2), the impeller (4), the mechanical sealing structure (5) and the electromagnetic clutch (10). The combined type fast self-absorption centrifugal pump is good in self-absorption performance, good in cavitation-resisting performance, easy to operate and low in energy consumption.

Description

technical field [0001] The invention belongs to the field of fluid machinery, in particular to a composite fast self-priming centrifugal pump. Background technique [0002] For ordinary centrifugal pumps, if the suction liquid level is below the impeller, it needs to be filled with liquid before starting, which is very inconvenient. At the same time, in order to store the liquid in the pump, the inlet of the suction pipe needs to be pre-installed with a bottom valve, which is inconvenient and causes great hydraulic loss. Ordinary self-priming centrifugal pumps have a long self-priming time and low efficiency. The pump is heavy and inconvenient to move, and the operation is complicated. In the case of plateau, the atmospheric pressure decreases and the pressure at the pump inlet is small, which will easily lead to the occurrence of pump cavitation, cause damage to the pump, and fail to work normally. Ordinary liquid ring self-priming pump, because the liquid ring wheel and ...

AI Technical Summary

Problems solved by technology

[0002] For ordinary centrifugal pumps, if the suction liquid level is below the impeller, the liquid needs to be filled in advance when starting, which is very inconvenient

At the same time, in order to store the liquid in the pump, the inlet of the suction pipe needs to be pre-installed with a bottom valve, which is inconvenient and causes great hydraulic loss

Ordinary self-priming centrifugal pumps have a long self-priming time, low efficiency, heavy pumps and are not easy to move, and the operation is complicated

In the case of plateau, the atmospheric pressure decreases, and the pressure at the pump inlet is small, which will easily lead to the occurrence of pump cavitation, cause damage to the pump, and fail to work normally.

Ordinary liquid ring self-priming pump, because the liquid ring wheel and the centrifugal wheel rotate at the same time, the pump efficiency is low and the energy consumption is large

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