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自从本世纪开始,本公司已从事于往复式压缩机的设计,并自1969年又设计了双转子螺杆式压缩机。我们在过去的五年中已经与特隆赫姆大学诺其斯工程学院(Norges TekniskeHφgskole Unioersity of Trondheim)合作完成了一项有关我们的往复式压缩机设计的详尽的试验计划以确定各种设计参数对压缩机效率的确切影响。特别是已经研究了环片型吸入和排出阀的最佳设计。本文将报导使用 R22和 R717二种工质时,容积—和等熵效率的变化与速度,行程长度,阀弹簧设计,压缩比等的关系。根据1000套以上机组的经验,和在公司的名义下由发许可证的实验室得到的各种结果,我们对往复式压缩机所得的结果与双转子螺杆式压缩机的那些结果进行了比较。阐明了其间的差异,并且结论证实了二种型式的容积式压缩机都具有它们自已的特征,同时它们是互补的,从而常常可以将它们组合在一套装置中以便在各种工况条件下得到能效最高的装置。
Since the beginning of this century, our company has been engaged in the design of reciprocating compressors, and since 1969 has designed double-rotor screw compressors. For the past five years, we have worked with the Norges Tekniske Høgskole Unioersity of Trondheim on a detailed pilot program on the design of our reciprocating compressors to determine the various design parameters The exact effect on compressor efficiency. In particular, the best design of ring-type suction and discharge valves has been studied. This article reports the relationship between volumetric and isoentropic efficiency changes with velocity, stroke length, valve spring design, compression ratio, etc., using two working fluids, R22 and R717. Based on the experience of more than 1000 units and the results obtained from licensed laboratories in the name of our company, the results we obtained for reciprocating compressors were compared with those for twin-rotor screw compressors. Clarify the differences between them and conclude that both types of positive displacement compressors have their own characteristics and that they are complementary so that they can often be combined in a single unit for a variety of operating conditions Get the most energy-efficient device.