2016年10月30日星期日

The working principle of the vertical self-priming pump

Self-priming pump is southern commonly used a pump. Principle is to use the water velocity of flow momentum, drives the pump impeller impeller pumping water into the river. Thrown into the river to the pump pumping, but must be water, or a place to have head.
Self-priming pump and centrifugal pump is different in general. Centrifugal pump, before work, pump body and feed line must be tank filled with water into a vacuum, when the fast rotating impeller blade promote water quickly spin, spin the water under the action of centrifugal force, fly away from the impeller, pump in the water is thrown, the center of the impeller part form the vacuum area. Water in the original water at atmospheric pressure (or hydraulic) through the pipe network pressure under the action of the feed water pipe. So circulates, can achieve continuous pumping.
Self-priming pump is not need irrigation water diversion, this is the origin of self-priming pump.
Self-priming pump self-priming principle: as the pump shell's special design. Its high sealing performance than general centrifugal pump, and motor to halt the water in the pump housing will not automatically after emptying, motor drive the turbine at high speed, quickly make form a negative pressure (vacuum) inside the pump. After using atmospheric pressure pumping water to the pump shell, centrifugal head again. So, self-priming pump suction, no more than an atmospheric pressure, about 11 m.
Scope of application of self-priming pump
1, suitable for urban environmental protection, construction, fire control, chemical, pharmaceutical, dyes, and dyeing, brewing, electric power, electroplating, paper making, washing of industrial mines, cooling of equipment, etc.
2, with a swing arm sprayer, the water can rush into the air, a small drips to spray, is a good tool for farm, nursery, garden, garden.
3, suitable Yu Qingshui, water, chemical liquid medium with acid, alkalinity and with general mushy slurry (medium viscosity < 100 mm pearl, solid content of 30%).
4, and can be matched with pressure filter of any model and specifications, send paste to filter machine supporting the ideal pump for filter.

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