在空压机排气量的计算中,常常要考虑空气湿度的影响而对排气量进行修正,为此引进了析水系数的概念。国内外有关资料中,对析水系数的计算公式均有介绍,但往往没有具体的推导过程,或推导过程不尽合理,本文试图对这个问题作一粗浅叙述,不当之处,请批评指正。通常空气中总是含有水分的,空气中的水分是以水蒸汽的形态存在的。空气中所含水分的多少,即空气的潮湿程度用相对湿度ф表示,可用湿度计测得。根据定义,一定温度下空气的相对湿度: In the calculation of air compressor displacement, it is often necessary to consider the influence of air humidity to correct the displacement, thus introducing the concept of water distribution coefficient. In domestic and foreign relevant materials, the formula for calculating the coefficient of water analysis is introduced, but there is often no specific process of derivation, or the process of derivation is not reasonable. This article attempts to give a brief description of the problem and its improper place. Please criticize and correct it. Usually the air always contains moisture, the water in the air is in the form of water vapor. The amount of moisture contained in the air, that is, the degree of humidity of the air relative humidity ф said available hygrometer measured. By definition, the relative humidity of air at a certain temperature: