Main applications of Roots vacuum pumps
Release date:
2021-05-21
Roots vacuum pumps are widely used in various fields for vacuum generation. They extend the operational range of oil-sealed mechanical vacuum pumps at lower inlet pressures. These pumps feature compact size, high pumping speed, and the ability to achieve high vacuum levels when the inlet pressure ranges from 1 to 100 Pa. They are particularly well-suited for vacuum systems requiring high pumping speeds, such as vacuum drying of power transformers and power capacitors, vacuum impregnation processes, vacuum heat treatment, vacuum degassing in metallurgy, pre-pumping for vacuum coating equipment, exhaust ventilation for large-scale wind tunnels, and exhaust ventilation for lighting production lines.
Roots vacuum pump Main uses:
Roots vacuum pumps are widely used in various fields for vacuum generation. They extend the operational range of oil-sealed mechanical vacuum pumps to lower inlet pressures. These pumps feature compact size, high pumping speed, and the ability to achieve high vacuum levels at inlet pressures ranging from 1 to 100 Pa. They are particularly well-suited for vacuum systems requiring high pumping speeds, such as vacuum drying of power transformers and power capacitors, vacuum impregnation processes, vacuum heat treatment, vacuum smelting and degassing, pre-pumping of vacuum coating equipment, exhaust ventilation for large-scale wind tunnels, and exhaust ventilation for lighting production lines.
Roots vacuum pump Its working principle is similar to that of a Roots vacuum blower. Due to the continuous rotation of the rotor, the gas being pumped is drawn in from the air inlet into the space v0 between the rotor and the pump casing, and then discharged through the air outlet. Since the v0 space is completely sealed after intake, the gas in the pump chamber is neither compressed nor expanded. However, when the top of the rotor turns and the edge of the exhaust port is reached, and the v0 space becomes connected to the exhaust side, some of the gas is forced back into the v0 space due to the high gas pressure on the exhaust side, causing an abrupt increase in gas pressure. As the rotor continues to rotate, the gas is finally discharged from the pump.
1. It has a large pumping speed over a relatively wide range of pressure variations;
2. Quick to start and ready to work immediately;
3. Insensitive to dust and water vapor contained in the extracted gas:
4. The rotor requires no lubrication, and there is no oil inside the pump chamber.
5. Low vibration, excellent rotor dynamic balance, and no exhaust valve.
6. The drive system has low power and minimal mechanical friction losses;
7. Compact structure with a small footprint;
8. Low operation and maintenance costs.
Therefore, Roots vacuum pump Widely used in the metallurgical, petrochemical, papermaking, food, and electronics industries.
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