Wear resistant Roots vacuum pump

Wear resistant Roots vacuum pumpIt is a variable capacity vacuum equipment, whose core structure consists of two "8" - shaped rotors that rotate synchronously in opposite directions. The rotor maintains a small gap (usually 0.1-0.8 millimeters) between the inner wall of the pump casing and the rotor, and achieves non-contact rotation through gear transmission. This pump does not have an internal compression process and needs to be used in conjunction with front-end pumps such as oil seal pumps and water ring pumps to achieve high vacuum levels. Its design features include oil-free lubrication, compact structure, and strong corrosion resistance, making it suitable for industrial scenarios that require stable pumping.

structural characteristics

(1) Has a larger pumping speed within a wider pressure range;

(2) The rotor has good geometric symmetry, resulting in low vibration and smooth operation. There are gaps between the rotors and between the rotor and the housing, which do not require lubrication and have low friction loss. This can greatly reduce the driving power and achieve higher speeds;

(3) The pump chamber does not require oil sealing and lubrication, which can reduce the pollution of oil vapor to the vacuum system;

(4) There is no compression in the pump chamber and no exhaust valve. Simple and compact structure, insensitive to dust and water vapor in the extracted gas;

(5) Low compression ratio results in poor hydrogen extraction efficiency;

(6) The surface of the rotor is a complex curved cylindrical surface, which is difficult to process and inspect. Roots vacuum pumps have experienced rapid development both domestically and internationally in recent years. It has been widely used in industries such as smelting, petrochemicals, electrical engineering, and electronics.

Wear resistant Roots vacuum pumpPrecautions for use

Gap calibration: Regularly check the rotor gap to ensure it is within a reasonable range and prevent wear or jamming.

Cooling system maintenance: Clean the air cooling fins or water pipes to ensure heat dissipation efficiency; Regularly replace the circulating oil (if oil cooling is used).

Overflow valve test: Check the automatic opening function of the overflow valve to ensure timely pressure relief when the pressure exceeds the limit time.

Pre stage pump matching: Select the appropriate pre stage pump according to the process requirements, optimize the vacuum degree and pumping speed.

Cleaning and lubrication: Regularly clean the dirt in the pump chamber, lubricate the gears and bearings, and extend the service life of the equipment.

Operation monitoring: Observe the motor load, vibration, and noise, and immediately stop the machine for inspection in case of abnormalities.