Full-automatic hydraulic vacuum-assisted high-suction-height self-sucking pump

Abstract

The invention discloses a full-automatic hydraulic vacuum-assisted high-suction-height self-sucking pump, which comprises a base, a material inlet and outlet structure, a material inlet and outlet structure and a material outlet and inlet structure, the vacuum auxiliary self-suction device is connected to the other side of the top of the base, and the vacuum auxiliary self-suction device comprises a vacuum pump, a self-suction pump, a floating ball sensing structure and a self-suction pump hydraulic motor. By means of the arrangement mode that the material inlet and outlet structure and the vacuum auxiliary self-suction device are matched, after the water inlet pipeline of the self-suction pump is completely sucked, due to the fact that air is sucked in, the floating ball sensor in the water tank can return to the low position, and at the moment, a signal can be fed back to the electromagnetic switching valve to open the oil supply pipe of the hydraulic motor of the vacuum pump; the vacuum pump operates to help the self-sucking pump to suck negative pressure, for example, when a low-water-level medium is sucked or an inlet pipeline slightly leaks air, the vacuum assist can assist the self-sucking pump to avoid the phenomenon that water does not flow out due to the fact that vacuum is damaged when the self-sucking pump sucks air.

Description

technical field [0001] The invention relates to the field of self-priming sewage mud pumps, in particular to a fully automatic hydraulic vacuum-assisted high-suction self-priming pump. Background technique [0002] The vacuum-assisted self-priming pump in the traditional technology needs to be driven by a motor or a diesel engine, and the overall weight is heavy and takes up a lot of space due to startup, and it is inconvenient to move. Although the self-priming pump in the traditional technology can replace the motor with a hydraulic motor , but every time you start the self-priming pump, you need to fill the self-priming pump with water to suck up the water, and the self-priming time is long, and the water inlet pipe should not be too long. If the pipe is long, the air content in the pipe is too much, When the self-priming pump runs for a long time, the water in the pump chamber drives the frictional circulation of the water and the pump chamber at a high speed due to the ...

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Problems solved by technology

[0002] The vacuum-assisted self-priming pump in the traditional technology needs to be driven by a motor or a diesel engine. The overall weight and space occupied by the start-up are large, and the movement is inconvenient. Although the self-priming pump in the traditional technology can replace the motor with a hydraulic motor , but every time you start the self-priming pump, you need to fill the self-priming pump with water to suck up the water, and the self-priming time is long, and the water inlet pipe should not be too long. If the pipe is long, the air content in the pipe is too much, When the self-priming pump runs for too long, the water in the pump chamber will cause friction between the water and the pump chamber due to the high-speed impeller inside, resulting in cavitation after the water temperature rises, so that the self-priming capacity will become lower and cause suction. The phenomenon of not getting water

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