Water ring vacuum pump working principle is what _

water ring vacuum pump ( Also known as the liquid ring vacuum pump) 。 This is a kind of coarse vacuum pump, can achieve 2000 - 4000 pa vacuum limit and jet configuration can reach 270. Liquid ring vacuum pump can also be used for compressor, called water ring compressor, that they are the pressure range is 1 to 2 x 105 Pa low-pressure compressor. Originally used as water ring pump self-priming pump, and then gradually used in oil, chemical industry, machinery, mining, light industry, medicine and food industry. It is widely used in various industrial processes, such as vacuum filter, vacuum water, vacuum feed, vacuum evaporation, vacuum concentration, vacuum degassing and recycling and water ring pump.

due to the rapid development of vacuum technology, water ring vacuum pump in the coarse vacuum to obtain a great deal of attention. Because water ring pump in the process of gas compression is isothermal, so it can extract flammable and explosive gas, can also be inhaled. Therefore, dust, water and gas are increasingly using water ring pump. With just the right amount of water as working fluid in the water pump body. When clockwise rotation and throw water impeller impeller, due to the effect of centrifugal force, the water in the pump chamber formed in similar shape, similar to the thickness of the closed circle.

water ring vacuum pump with the impeller under the surface tangent overlap, water ring happens to be located on the surface of the water ring above the top of the leaf ( Actually left the insertion depth) 。 Due to the impeller wheel and water ring form a crescent-shaped space, this space is divided into multiple small cavity, the number of impeller and blade are equal.

if the bottom of the impeller with 0 ° as a starting point, when the volume of a small cavity as a child grows, the impeller rotate 180 °. When the suction on the face, air is sucked into; When the cavity is breathed in, at the end of the rest in suction quarantined when inhaled. When the impeller make the small cavity hours and compressed gases. Small cavity has the body with air exhaust pump.

in short, the water ring vacuum pump is a kind of variable displacement pump, can be realized by changing the pump cavity volume to suction, compression and exhaust.

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