所谓压缩机的系列,是指按照一定规则设计的一群压缩机。这种规则由于所给的任务不同、各个具体设计者的见解不同,通常把用途和结构型式相同、特征相似、往往由同一厂出品的压缩机,叫做系列;也有人把从某一种压缩机变型而来的许多压缩机也称为系列。本文所指的系列则确定为:用途、被压缩的气体、吸入和最张压力都相同,不但总的结构型式相似,而且零件设计也都相似的压缩机群。设计压缩机时,当热力计算初步完成后,就要确定新机器的具体结构型式和主要参数,同时又要使这些条件和参数符合于热力计算时所假设的情况。这是设计时所需要解决的根本问题。但是,合理地选择压缩机的结构型式和主要参数,却是一个比较复杂的问题,它涉及力学、传热学、气体流动力学以及关于摩擦和磨损等许多计算和估计。为了便于分析,本文将比较次要的问题撇开,并且将实际的压缩机进行简化,希望由此能找到压缩机及其系列的设计规律。进行简化的条件是: The so-called series of compressors, refers to a group of compressors designed according to certain rules. Because of the different tasks assigned to each specific designer’s opinion, this rule usually uses the same type of structure and characteristics, similar to the compressor is often produced by the same plant, called the series; some people change from a compressor Many compressors come in a series. This article refers to the series is identified as: use, compressed gas, inhalation and maximum pressure are the same, not only the overall structure of similar, but also similar parts design compressor group. When designing the compressor, once the thermodynamic calculations are initially completed, the specific structure and the main parameters of the new machine are to be determined, and at the same time the conditions and parameters are to be adapted to those assumed in thermodynamic calculations. This is the design of the fundamental problems to be solved. However, the rational choice of compressor type and main parameters is a complex one. It involves mechanics, heat transfer, gas flow dynamics and many calculations and estimations about friction and wear. In order to facilitate the analysis, this article will be more secondary issues aside, and the actual compressor is simplified, hoping to find the compressor and its design rules. The conditions for simplification are: