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在河北邯郸市压缩机厂的组织下,我室与其他兄弟院校的同志一起,参加了将Z4.7-8/150型立式两列五级水冷式氮氢混合气压缩机改造为排气量为550/时、排气压力为38大气压（表压）的石油气压缩机的设计计算工作。设计过程中,我们听取了有关石油气压缩机使用单位和制造厂的宝贵意见,现将学习体会作一简要介绍。石油气一般指来自石油系统的一碳到四碳烃类的混合气。可含有氢气和五碳以上的烃,
Under the organization of Compressor Factory in Handan City, Hebei Province, I participated in the transformation of Z4.7-8 / 150 vertical two-stage five-stage water-cooled nitrogen-hydrogen hybrid compressor into a row with comrades of other brothers and colleges. Design and calculation of LPG compressors with a capacity of 550 / hour and an exhaust pressure of 38 atm. During the design process, we listened to valuable comments on the units and manufacturers of LPG compressors, and now we are going to make a brief introduction of our experience. LPG generally refers to a mixture of hydrocarbons of one to four carbons from the petroleum system. May contain hydrogen and more than five carbons,