{"id":13940,"date":"2020-04-29T06:16:36","date_gmt":"2020-04-29T01:46:36","guid":{"rendered":"https:\/\/vacuumpumps.ir\/?p=13940"},"modified":"2025-08-04T15:16:41","modified_gmt":"2025-08-04T10:46:41","slug":"what-is-the-working-principle-of-vacuum-pump","status":"publish","type":"post","link":"https:\/\/asiavacuumpumps.com\/asia\/what-is-the-working-principle-of-vacuum-pump\/","title":{"rendered":"What is the working principle of vacuum pump?"},"content":{"rendered":"

What is the working principle of vacuum pump?<\/h1>\n

Water ring vacuum pump (also known as liquid ring vacuum pump).It is a kind of rough vacuum pump, it can get the limit of vacuum is 2000 ~ 4000 pa, Equiped with air ejector can reach 270 ~ 270.Liquid ring vacuum pump can also be used for compressor, called water ring compressor, belongs to low pressure compressor, the pressure range of 1 ~ 2 x 105 pa gauge pressure<\/a>.Originally used as water ring pump self-priming pump, and then gradually used in petroleum, chemical industry, machinery, mining, light industry, medicine and food and many other industries.In many industrial production process, such as vacuum filter, vacuum water diversion, vacuum feed, vacuum evaporation, vacuum concentration, vacuum resurgence and vacuum degassing, water ring pump is widely used.<\/p>\n

Due to the rapid development of vacuum technology, water ring vacuum pump in rough vacuum obtain aspect has been paid great attention by people.Because water ring pump in the gas compression is isothermal, so can pumping flammable, explosive gas, it also can smoke in addition to the dust, water, gas, therefore, water ring pump application is increasing<\/a>.In the pump body is equipped with the right amount of water as working fluid.When the impeller rotates clockwise and impeller water to be thrown around, due to the effect of centrifugal force, water creates a decision in the pump cavity shape similar to the thickness of the closed circle, etc.Water ring surface of the lower part coincided with the impeller wheel tangent, water ring on the division of surface just contact with the top of the blade in water ring (actually leaves insertion depth).As the impeller wheel hub with a crescent-shaped space formed between water ring, and the space was divided into impeller and blade number equal to a number of small cavity.If the bottom of the impeller 0 \u00b0 as starting point, so in front of the rotating impeller 180 \u00b0 when small cavity volume changes from small to big, and with suction mouth on the face, the gas is inhaled, when the suction at the end of the small cavity is isolated from the rest of inspiratory mouth;When the impeller to rotate, small cavity from large to small, make the gas is compressed;When small cavity with vent gas was discharge pump.To sum up, the water ring vacuum pump is accomplished by the change of the pump cavity volume of suction, compression and exhaust, so it belongs to the variable capacitance type vacuum pump.<\/p>\n