对称腔非同步排气涡旋空气压缩机热力学研究

摘要

为了研究对称腔非同步排气涡旋空气压缩机的热力学特性，结合其几何特点对热力学过程进行了计算。计算过程分为两排气腔压力不等和相等两个阶段，分别建立了热力学拓扑结构，避免了排气腔容积较小时引起的热力学计算误差放大。给出了与计算过程相适应的排气量、温度计算方法。热力学计算结果与实验结果相一致。对一个压缩过程中的压力和温度曲线进行了详细分析。%To find out the thermodynamic characteristics of an air scroll compressor with asyn-chronous discharge of symmetric chambers ,thermodynamic calculation was combined with geometry characteristics .For avoiding the amplification of calculation errors when the discharge volume was ti-ny ,the thermodynamic process was divided into two stages :the air pressure in two discharge chamber equal or not .The calculation methods of the corresponding mass and discharge temperature were es-tablished ,the calculation results have a good agreement with the experimental results .The curve of pressure and temperature was analyzed in a compression run .