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1. Purpose

    ZBK series roots vacuum pump (SV series special vacuum pump for papermaking) is a kind of equipment for obtaining rough vacuum. The ideal equipment for vacuum dehydration of industrial fourdrinier wire suction box or fourdrinier paper machine wire suction box.

 

    In this range, compared with water ring vacuum pumps, ZBK series roots vacuum pumps have the advantages of large pumping speed, high efficiency, compact structure, small size, convenient maintenance, long life, and low power consumption. The suction medium is dry, humid air or water mixture, but the medium must not contain particulate matter, high dust gas or corrosive substances.

 

2. Structure and working principle

    This machine is driven by the motor through the V-belt pulley to rotate the driving rotor, and the driven gear is driven by the synchronous gear to drive the driven rotor to rotate, the two rotors do not contact each other, and a gap of about 0.4mm is maintained. There is a gap of about 0.25mm between the rotor and the pump body and the end cover. During operation, in the lower part of the pump cavity, due to the continuous separation of the two rotors, the volume is expanded. At the upper part, the continuous connection of the two rotors causes the volume to shrink, thus completing the function of suction and exhaust, and creating a vacuum on the suction side. , And the exhaust side is connected to the atmosphere, close to atmospheric pressure. The outlet of the pump body has a sound silencing box, and at the same time it has the function of stabilizing pressure and sealing, which improves the working efficiency of the pump.

 

Performance parameter table: