The paper gives an analysis of the hydraulics properties, the method of connection and the feasibility of transporting artificial coal gas and the prospects of expansion application of PE gas line.
对聚乙烯燃气管道水力学特性、连接方式以及输送人工煤气的可行性进行了分析，阐明了推广应用聚乙烯燃气管的前景。
Analyzed and improved is the calculation method of gas temperature after depressurization through expansion, which provides a quantity basis for taking full advantage of cold energy.
同时，对经透平膨胀机膨胀降压后天然气的温度计算方法也进行了分析和改进，为充分利用天然气降压过程产生的冷能提供了量的基础。
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