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Jet vacuum pump of advantages and working principle

Jet vacuum pump is a kind of momentum transfer pump which USES venturi effect pressure drop to produce high speed jet to transport gas to the outlet. It is divided into water jet vacuum pump, steam jet vacuum pump, soda water jet series injection vacuum pump, soda water combined injection vacuum pump.


Jet vacuum pump in the vacuum range, can direct suction vapor can non-condensable gas and with granular medium, simple structure, convenient operation, no moving parts maintenance quantity is small, the advantages of saving energy and reducing consumption is more and more widely used in chemical industry in the operation of each process, the following respectively introduces working principle of various kinds of jet vacuum pump.

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Working principle and structure diagram of jet vacuum pump:


Water jet vacuum pump equipment to see its structure diagram, its working principle is: the water in the circulating water tank through the circulating pump after work have pressure, flow rate, has a certain pressure, flow rate of water into the water spray water chamber, via multiple laval nozzle jet orifice, the injector by high speed jet mixing chamber to produce vacuum, medium is pumped into the mixing chamber, under the action of a vacuum in the mixing chamber and high-speed flow fully mix and scripture venturi tube booster slow down, the back out to the water tank, no non-condensable gas precipitation, condensable gas from water tank overflow vent overflow, so repeated work is done. It has the advantage of low position complete machine type, higher vacuum degree than water ring vacuum pump, replace reciprocating vacuum pump can cancel the front condenser, save the one-time equipment investment and operation cost.

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