Water self-priming apparatus for water pumps

Abstract

This invention is applied to the self-inhalational device of the non self-irrigating (inhalational) pump. The framework is: water drawing valve linking with the water drawing jar through water drawingpipe; the liquid level sensor set in the jar by the fixing base; the airing valve linking with the jar through the airing pipe. The bottom of the water drawing jar is fixed with linking disk, and with inhaling pipe inside, the pipe stretches out of the bottom. The inhaling pipe and the linking disk are connected fixedly, the outer end of the pipe is connected with the flange; the linking disk isfixed on the jar by bolt through hermetical mat. The jar has an inhaling pipe communicating to the flange; the under part of the jar has limber hole that is connected with limber valve through linkingpipe and the elbow. This invention overcomes the weak points of the existing technology, changes the situation in which using vacuum pump or equipping bottom valve jar to solve the driving of the self-irrigating pump, and achieves the automatic control of the non self-irrigating pump.

Description

technical field [0001] The invention is applied to non-self-priming (suction) water pumps, and particularly relates to the design of the self-suction structure of the water pumps. Background technique [0002] At present, when the non-self-priming (suction) water pump starts, it generally uses a vacuum pump to evacuate or install an inlet bottom valve to fill and divert water. The structure of the vacuum pumping system of the vacuum pump is: the vacuum pump is connected to the water pump through the suction pipe; the disadvantage is that the time for vacuum water diversion is long, and the vacuum pump equipment and power consumption are increased. Another structure is: the water pump is equipped with a bottom valve, and the water pump is connected to the water diversion port. The disadvantages of this structure of installing the inlet bottom valve are: the head loss of the bottom valve is large; the bottom valve must be cleaned and overhauled frequently; automatic control c...

AI Technical Summary

Problems solved by technology

The structure of the vacuum pump vacuum system is: the vacuum pump is connected to the water pump through the suction pipe; its disadvantages are: the time for vacuum water diversion is long, and the vacuum pump equipment and power consumption are increased.

The disadvantages of this structure of installing the bottom valve at the inlet are: the head loss of the bottom valve is large; the bottom valve must be cleaned and repaired frequently; automatic control cannot be realized

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