1. What is the part of the vacuum pump? What types of vacuum pumps are generally found in refineries? The vacuum pump is designed to create a vacuum in the equipment or container that works below ambient atmospheric pressure or high vacuum. Vacuum pumps frequently used in gear box for greenhouse refineries include steam jet vacuum pumps, water ring vacuum pumps and reciprocating vacuum pumps.

2. What’s the working principle of the steam jet vacuum pump? It includes a nozzle, a combining chamber, an expansion chamber, and a pressure outlet. In operation, drinking water vapor is sprayed from the nozzle in to the combining chamber at a high speed (1200-1500 m/s). At this time, a specific negative pressure is generated at the nozzle, so that the pumped gas can be flushed into the blending chamber from the gas inlet and mixed with water vapor. And get some energy from the drinking water vapor. When the combined gas stream enters the diffuser chamber, the velocity steadily decreases along the axis, and the pressure steadily raises along the axis flow until it is discharged above the atmospheric pressure. Due to the continuous work, the gas in the gear is constantly extracted, thus causing a vacuum (negative pressure) state within the equipment.

3. What are the features of the steam aircraft vacuum pump? The steam jet vacuum pump entrains the pumped gas at a high 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 device of the refinery The majority of the vacuum pumps utilized are steam aircraft vacuum pumps.

4. What is the construction of the water band vacuum pump? What’s the working theory of the water band 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.