Strong self-sucking double-suction pump

Abstract

The invention relates to a strong self-sucking double-suction pump and belongs to a combination of a double-suction pump, a self-sucking pump, a vacuum pump unit and an automatic control system. The strong self-sucking double-suction pump has ultrahigh suction and ultrafast self-sucking functions, taking DN300 aperture as an example, suction of one meter can be sucked about within 30 seconds, and self-sucking dry starting and automatic control can be realized without irrigation of water. When a main pump starts, then the vacuum pump unit also starts at the same time, and the vacuum pump unit automatically stops when the vacuum degree is increased until the water pump is capable of discharging water. During use, the vacuum pump unit starts automatically when the vacuum degree is lowered to the low order, and automatically stops when the vacuum degree is increased to the high order. Operation of the main pump is not interfered by a vacuum degree control system which only plays a role in assistance. The strong self-sucking double-suction pump is designed to be of a dry-grinding-resistant structure, has functions of sucking shallow water, air-water mixed liquors and the like and can be widely applied to occasions such as flood fighting and emergency rescues, drainage of stagnant water and firefighting, and a water-pump mechanical seal can operate for more than 30 minutes without being damaged.

Description

technical field [0001] The invention belongs to a strong self-priming double-suction centrifugal pump, which is an electromechanical integrated 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. There is also a strong self-priming pump that uses mechanical devices to assist in vacuuming and absorbing water. It has the following disadvantages: [0003] 1. A single pump has no self-priming function, and there is no self-priming function without the assistance of mechanical devices. [0004] 2. The use of mechanical devices is relatively cumbersome, a...

AI Technical Summary

Problems solved by technology

[0003] 1. A single pump has no self-priming function, and there is no self-priming function without the assistance of mechanical devices

[0004] 2. The use of mechanical devices is relatively cumbersome, and it is not as advanced as electronic automatic control

[0005] 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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