Improved double-suction self-priming pump with strong self-priming property

Abstract

The invention discloses an improved double-suction self-priming pump with a strong self-priming property, and belongs to combination of a double-suction pump and a self-priming pump and combination of a vacuum pump set and an automatic control system. An auxiliary vacuum pump set with the strong self-priming property introduces a new model of placing a mechanical float valve and a monitoring probe in an automatic control water diversion tank, and reliability of equipment is greatly improved. A vacuum pump constantly runs, the water level in the tank reaches a certain position, and the mechanical float valve can be automatically closed owing to buoyancy, so that water cannot enter the vacuum pump. Besides, a water stop valve is additionally arranged, water vapor is effectively stopped from entering the vacuum pump, and parts of the vacuum pump cannot be damaged due to entering of the water. The improved double-suction self-priming pump has ultrahigh suction and ultrafast self-priming functions, can run in a self-priming manner without water diversion and irrigation, can realize dry starting and automatic control, is particularly applicable to a locomotive integrated mobile pump station and can be widely applied to occasions such as flood-fighting and emergency rescue, flood drainage and fire fighting.

Description

technical field [0001] The invention belongs to an improved strong self-priming double-suction self-priming pump, which is a mechanical-electrical integration equipment for pipeline pressurization, water supply and drainage, and locomotive-integrated mobile pump stations. Background technique [0002] The closest similar product of the present invention is the first-generation multi-functional double-suction self-priming pump developed by our company. Because it adopts the structure of a single pump, the suction range is not high, the suction is slow, and the water cannot be self-priming without irrigation. Defects such as dry start. [0003] There is also a strong self-priming pump that uses mechanical devices to assist in vacuuming and absorbing water. It has the following disadvantages: [0004] 1. A single pump has no self-priming function, and there is no self-priming function without the assistance of mechanical devices. [0005] 2. The use of mechanical devices is...

AI Technical Summary

Problems solved by technology

[0004] 1. A single pump has no self-priming function, and there is no self-priming function without the assistance of mechanical devices

[0005] 2. The use of mechanical devices is relatively cumbersome, and it is not as advanced as electronic automatic control

[0006] 3. There is no function of super strong self-priming, ultra-high suction lift, and ultra-fast self-priming. Taking DN300 caliber as an example, it cannot absorb a suction lift of 1 meter within 30 seconds.

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