摘  要
 
往复活塞式压缩机是容积式压缩机的一种，是利用活塞在气缸中对流体进行挤压，使流体压力提高并排出的压缩机械。热力、动力计算是压缩机设计计算中基本的，又是最重要的一项工作，根据用户提供的成分、气量、压力等参数要求，经过计算得到压缩机的相关参数，如级数、列数、气缸尺寸、轴功率等。经过动力计算得到活塞式压缩机的受力情况。准确地分析机组受力情况，对于消除机组的振动非常重要。在变工况条件下，需要快速实现核算原设计的飞轮是否满足运行要求。活塞式压缩机热力计算、动力计算的结果将为各部件图形以及基础设计提供原始数据，其计算结果的精确程度体现了压缩机的设计水平，也是压缩机研究方面的一个课题。
 
关键词：活塞式压缩机; 热力计算; 动力计算;气缸；曲轴
 
Abstract
 
Reciprocating piston compressor is a volume compressor, which is to increase pressure to discharge fluid by piston. Thermal and dynamic compressor design is the basic and most important one, according to users with the content, gas, pressure and other parameters, calculated after the compressor related parameters, such as class, number, size cylinder, shaft power, and so on. After driving force calculated piston compressor of the force. It is very important to eliminate the vibration by accurate analysis of the force units. During alterative working conditions, it is need to meet the movement requirement for original design of flywheel rapidly. Thermodynamic and dynamic calculations of Piston compressor provide original data for unit graphics and basic design, the calculated results reflect the grade of the compressor design, and the compressor is a study of the topic.
 
Keywords: piston-type compressors; Thermodynamic calculations; Dynamic calculation; Cylinder; Crankshaft recalculation