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气冷式罗茨真空泵需要携带泵外换热器 ,以保证泵在高压差下正常工作而不会产生过热。热平衡计算是泵及机组成功设计的关键 ,本文对热平衡计算进行了探讨。研究表明 ,气冷式罗茨真空泵的温升 ,取决于工作气体本身的性质以及泵排气口压力与进气口压力的比值 (即压缩比 )
Air-cooled Roots vacuum pumps need to carry a heat exchanger outside the pump to ensure that the pump will work properly under high pressure without overheating. Heat balance calculation is the key to the successful design of the pump and the unit. In this paper, the heat balance calculation is discussed. The results show that the temperature rise of the air-cooled Roots vacuum pump depends on the nature of the working gas and the ratio of the pressure at the pump outlet to the inlet (ie, the compression ratio)