简介膨胀机系统开车情况；重点是膨胀机在实际应用中，由于设计等方面的原因，出现了一些问题，采取一系列技术改造措施，取得良好的效果；并分析了还存在的几点未解决的问题。 Brief introduction of the expander system driving situation; the focus is the expander in practical applications, due to design and other reasons, there have been some problems, to take a series of technical transformation measures, and achieved good results; and analyzed the existence of several unsolved The problem.