Automatic control type efficient self sucking pump

Abstract

The invention relates to an automatic control type efficient self sucking pump. The automatic control type efficient self sucking pump comprises a pump body, a motor, an automatic exhausting and vacuumizing device and an intelligent control box; a liquid inlet is formed in the bottom of the pump body and is connected to an inlet elbow, a liquid outlet is formed in the side surface of the pump body and is connected to an automatic blowoff valve, an outlet stand pipe is arranged on the top of a valve body of the automatic blowoff valve, and the bottom of the valve body of the automatic blowoff valve is connected to a return pipeline through a return valve; a rotation shaft of the motor is connected to a pump shaft through a coupling, a pump cover is arranged between the pump body and the motor, a cavity formed by the pump body and the pump cover is a pump cavity, and an impeller is arranged inside the pump cavity; the pump cover is provided with an inductive probe and a vacuumizing and exhausting hole, an exhausting pipeline is installed on the vacuumizing and exhausting hole, the automatic exhausting and vacuumizing device communicates with the pump cavity through the exhausting pipeline, and the motor, the inductive probe and the automatic exhausting and vacuumizing device are electrically connected to the intelligent control box through signal cables. The automatic control type efficient self sucking pump is simple and compact in structure, the self sucking function is realized by the automatic exhausting and vacuumizing device, and the hydraulic efficiency is high.

Description

technical field [0001] The invention relates to a self-priming pump, in particular to a high-efficiency self-control self-priming pump, which belongs to the technical field of mechanical equipment. Background technique [0002] Self-priming pumps are often used in industries such as iron and steel, metallurgy, mining, electric power, petroleum and petrochemical, papermaking, and sewage treatment. Conventional self-priming pumps use a pump casing plus a water tank. When the impeller rotates, the gas and water are mixed and then discharged from the pump chamber, and the gas is separated from the water by the water tank, and the gas is discharged out of the pump. Make the inlet of the pump body form a certain degree of vacuum, so as to realize the function of self-priming. The self-priming time of this kind of self-priming pump is long, and because the liquid stays in the water tank for a long time, corrosion of the pump cavity will inevitably occur. If the self-priming pump ...

AI Technical Summary

Problems solved by technology

If the self-priming pump is prone to freezing in the low-temperature environment in the north, the material will freeze and solidify in the pump chamber, blocking the pump chamber, which will not only affect the smoothness of the pump inlet, but also cause the water tank and pump casing to freeze and crack.

In addition, most of the existing self-priming pumps only consider self-priming and do not pay attention to hydraulic efficiency during the pump design process, making them low-efficiency and high-energy-consuming equipment among centrifugal pumps.

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