Analysis of Four Factors Affecting Energy Efficiency of Roots Vacuum Pump

Roots vacuum pump is equipped with an eccentric rotor with a fixed vane, the water (liquid) thrown to the stator wall, the water (liquid) to form a liquid ring and the stator concentric, the liquid ring and the rotor blades together form a variable volume A rotary variable volume vacuum pump. In the process of using Roots vacuum pump, a number of factors will lead to its ability to decline, then the factors that affect the Roots vacuum pump what? Affect Roots vacuum pump energy efficiency of the four major factors analysis 1, the working steam and its dryness: Low steam pressure and pressure fluctuations have a greater impact on the ability of the vacuum pump, so the steam pressure should not be lower than the required working pressure, but the vacuum pump structure design has been stereotyped, too much to increase the steam pressure does not increase the amount of suction and vacuum degree. 2, the study of the requirements of the circulating cooling water: insufficient cooling water supply, the condenser will heat, the sound of the air becomes larger, the degree of vacuum drops rapidly, and even the steam will return into the exhaust pipe. 3, the vacuum pump system sealing requirements of the study: the vacuum pump is in the limit state, the first stage of discharge of water is very small, sometimes not even. Therefore, the first stage pump discharge large amounts of water, it can be considered a system leak. Common causes of gas leakage are: gaskets did not install, installed the wrong or damaged, the bolts are not tightened, the flange surface damage, weld trachoma, joints (pressure gauges, vacuum gauges, etc.) are not installed. 4, the nozzle requirements of the study: the nozzle is an important component affecting the performance of the vacuum pump, the problems are: nozzle installed wrong, installed crooked, blocked, damaged, corroded and leaked, no matter what precaution, nozzle clogging is inevitable . Everyone may know Roots vacuum pump, but Roots vacuum pump in the use of the environment What are the requirements, we understand how much? Roots vacuum pump in addition to having good mechanical properties and processing performance, but also to meet other performance requirements, That is easy to get rid of gas, low saturated vapor pressure, a certain chemical stability, a certain degree of purity and cleanliness, the appropriate radiation capacity. So Roots vacuum pump is special, the requirements of the cleaning process is extremely strict, should be to maximize the removal or reduction of parts pollution. Roots vacuum pump refers to no special requirements of the vacuum process, such Roots vacuum pump on the environment are: All roots in the vacuum pump, require no accumulation of pollution sources, the surface of no dust, no iron, no rust. Roots vacuum pump vacuum chamber surface to be smooth, no soft tissue and pores, no weld defects affect the vacuum. Roots vacuum pump, the vacuum chamber of the moving parts shall not be used as a lubricant oil, using a saturated vapor pressure diffusion pump oil, silicone oil as a lubricant, flange, the observation window sealing parts coated with high vacuum grease. Roots vacuum pump should generally be in the temperature of 15 ~ 30 ℃, relative humidity of not more than 70% of the work environment of clean air circulation, cooling water inlet temperature is not higher than 25 ℃. (Editor: Li Juan)

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