1. What is the function of the vacuum pump? What types of vacuum pumps are generally used in refineries? The vacuum pump is made to Agricultural Gear Reducers create vacuum pressure in the equipment or container that functions below ambient atmospheric pressure or high vacuum. Vacuum pumps frequently used in refineries include steam jet vacuum pumps, water ring vacuum pumps and reciprocating vacuum pumps.

2. What is the working principle of the steam jet vacuum pump? It consists of a nozzle, a blending chamber, an expansion chamber, and a pressure store. In operation, drinking water vapor is certainly sprayed from the nozzle into the mixing chamber at a high speed (1200-1500 m/s). At this time, a particular negative pressure is produced at the nozzle, to ensure that the pumped gas is definitely flushed into the mixing chamber from the gas inlet and mixed with drinking 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 flow until it really is discharged above the atmospheric pressure. Due to the continuous function, the gas in the gear is continuously extracted, thus causing vacuum pressure (negative pressure) state inside the equipment.

3. What are the features of the steam jet vacuum pump? The steam jet vacuum pump entrains the pumped gas at a higher speed of water vapor, so it has the characteristics of large pumping capacity, high vacuum, simple manufacture, convenient set up and maintenance, etc. Currently, the vacuum distillation device of the refinery The majority of the vacuum pumps utilized are steam plane vacuum pumps.

4. What is the construction of the water ring 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.