本文从汽轮机回热抽汽点选择方法之一的等效热降法,分析小型供热机组锅炉连续排污不仅带来工质损失,而且还有热量损失。因此电厂一般是通过连续排污扩容器系统予以回收利用,来提高电厂热经济性。 In this paper, the equivalent heat drop method, which is one of the methods to choose the steam extraction point of the steam turbine, is used to analyze the continuous blowdown of the boiler in a small heat supply unit, which not only brings about the loss of working fluid but also the heat loss. Therefore, power plants are generally recycled through continuous blowdown expander system to improve the thermal economy of power plants.