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简介本文说明用关闭进气管卸荷方法来提高半封闭制冷压缩机在部分负荷时的效率,并将关闭进气管卸荷时的效率和工作过程与旁通卸荷及顶开吸气阀卸荷作了比较。对于三种卸荷型式的每一种都进行了说明。此外,关闭进气管卸荷,除了具有最好的部分负荷效率外,比旁通卸荷具有较低的电机温度.最后说明关闭进气管卸荷在三种压缩机气缸卸荷方法中效率最高。
Introduction This paper describes the use of closing the intake manifold unloading method to improve the efficiency of semi-enclosed refrigeration compressors at part load, and will close the intake manifold unloading efficiency and work process with the bypass unloading and top open suction valve unloading Made a comparison. Each of the three unloading types is described. In addition, closing intake manifold unloading, in addition to having the best partial load efficiency, has a lower motor temperature than bypass unloading. Finally, closing the intake manifold unloading is most efficient among the three compressor cylinder unloading methods.