screw vacuum pump

First, product overview

As shown in the picture, the screw vacuum pump is equipped with a pair of parallel spiral rotors (1 and 2), of which one rotates in the right rotation and the other one is left. The two rotors maintain synchronous and reverse rotation through a pair of gears (3) in the pump body (9). There is no friction between the rotor and the rotor and the pump body. The two rotor and the pump body formed a sealing cavity (4), and the number of the sealing cavity is equal to the number of the spiral rings of the rotor. When the two rotors rotate in the direction of the drawing, the space of the sealing cavity connected with the suction port (5) is gradually enlarged, and the gas is inhaled and transferred to the exhaust side. The space of the seal chamber (6) of the exhaust side is gradually smaller during the rotation process, and the gas is compressed to the vent (7). When running for a long time, the proper amount of cooling water should be pumped into the jacket (8) of the pump body and the end cover to cool the pump. Because the compression heat is mainly produced in the exhaust side (6), in order to fully cool the rotor, a proper amount of air or other suitable gas can be introduced into the pump cavity through the air inlet (10) in most conditions.

Two,Characteristics of screw vacuum pump

A, no pollution to the pumped system, clean vacuum can be obtained.

B, the oil in the pump cavity is very easy to recover the solvent or burn it into the incinerator.

C, compact structure, small area.

D, and single pump can reach the limit pressure of 40Pa~5Pa, and the working range is wide.

E, because there is no waste oil and waste water in the process of work, there is no pollution to the environment.

F, the requirement for cooling water is low, for the cooling of the pump, ordinary circulating water can meet the requirements, and the cooling water is small.

G, according to the system working condition, the suitable roots vacuum pump can be used to form a dry vacuum pump unit, which can greatly improve the pumping rate and reduce the power consumption in the low pressure area.

H, screw vacuum pump between the stages of no channel, is directly to the gas from the suction side to the exhaust side, in the removal of condensable gas and dust, etc. is not easy to clog and pump cavity cleaning is very convenient: after starting the pump directly from the inlet of the pump inlet inert gas or suitable cleaning agent can clean the pump.

I, screw vacuum pump can extract inflammable, explosive, toxic and other suspicious gases.

Three, the parameter table of the screw vacuum pump

Four,Technical parameters of the roots screw pump vacuum unit