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1. What is the part of the vacuum pump? What kinds of vacuum pumps are generally found in refineries? The vacuum pump is designed to create vacuum pressure in the gear or container that works below ambient atmospheric pressure or high vacuum. Vacuum pumps frequently used in refineries consist of steam aircraft vacuum pumps, water band vacuum pumps and reciprocating vacuum pumps.

2. What is the working principle of the steam aircraft vacuum pump? It consists of a nozzle, a mixing chamber, an growth chamber, and a pressure outlet. In operation, drinking water vapor is usually sprayed from the nozzle into the blending chamber at a higher speed (1200-1500 m/s). At the moment, a particular gear box for greenhouse negative pressure is produced at the nozzle, to ensure that the pumped gas is flushed into the combining chamber from the gas inlet and mixed with water vapor. And get some energy from the water vapor. When the combined gas stream enters the diffuser chamber, the velocity steadily decreases along the axis, and the pressure gradually increases along the axis circulation until it is discharged above the atmospheric pressure. Due to the continuous function, the gas in the equipment is continually extracted, thus causing vacuum pressure (negative pressure) state within the equipment.

3. What are the characteristics of the steam jet vacuum pump? The steam jet vacuum pump entrains the pumped gas at a higher speed of drinking water vapor, so it gets the characteristics of huge pumping capability, high vacuum, simple produce, convenient installation and maintenance, etc. Presently, the vacuum distillation unit of the refinery Most of the vacuum pumps used are steam plane vacuum pumps.

4. What is the structure of the water band vacuum pump? What’s the working principle of the water ring vacuum pump? The water ring vacuum pump is composed of a pump casing, an impeller, a water ring, a suction chamber, a discharge chamber, and a vent hole.