Roots vacuum pump is now widely used vacuum pump equipment, which is characterized by the pump chamber does not occur gas compression, do not need lubricants, to withstand the pressure range, but it also has shortcomings, it The effect of pumping hydrogen is poor, the test is more difficult. The following will detail the advantages and disadvantages of Roots vacuum pump: Roots vacuum pump Roots vacuum pump has the following advantages: 1, the pump cavity does not occur gas compression, combined with the clearance between the moving parts of the suction gas dust and Water vapor is not sensitive, so can be extracted condensable steam. 2, the pump chamber movement without oil lubrication, to avoid the oil vapor on the vacuum system pollution, help to obtain oil-free vacuum. 3, without intake and exhaust valve, simple structure, low noise, the pump cavity moving parts do not touch each other, not easy to damage, low maintenance costs. 4, in a wide range of pressure (10? 10-2Torr), with a stable pumping speed, the rapid release of a sudden release of gas to make up for the lack of oil seal mechanical pump and diffusion pump, it is suitable for mechanical booster pump Use. In the case of a water seal or oil seal, can be directly discharged into the atmosphere vacuum, but also suitable for large pumping speed rough vacuum pump. 5, advanced design, reasonable structure, between the rotor and the rotor and the pump body are gaps, do not contact with each other, without lubrication, friction loss, available lower power to get a larger pumping speed, a significant energy saving effect. 6, the rotor has a good geometric symmetry, stable work, can increase the speed of access to large pumping speed, so as to achieve compact structure, small size, light weight. 7, start fast, can reach the ultimate vacuum in a short time. Roots vacuum pump shortcomings are: 1, the effect of pumping hydrogen than oil booster pump è¿”, back diffusion. 2, the rotor surface is a complex shape of the curve cylinder, machining requirements are higher, the test is more difficult, more difficult in the manufacture and assembly. People often say: things are done, no one is perfect. Each has its own advantages and disadvantages, but for the user as long as the right choice to choose their own products on the line, inadequate does not affect the effectiveness of the use of the product; for producers, the product is inadequate to enhance Space. To Roots vacuum pump, vacuum pump in the market share is still considerable, after which the shortcomings of further correction and its advantages continue to optimize, I believe in the future of the vacuum pump, its influence will gradually increase. Related Articles: Dry-type screw vacuum pump advantages and disadvantages trochoidal vacuum pump advantages and disadvantages
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