天然气调压装置不可逆损失的比较与分析  

Comparison And Analysis on Irreversible Loss of Natural Gas Pressure Regulation Equipments

作　　者：郑志[1] 王树立[1] 宋琦[1] 谢磊[1] 谢文淦 

机构地区：[1]江苏工业学院江苏省油气储运技术重点实验室,江苏常州213016 [2]中国航油集团陆地石油有限公司福建分公司,福建福州350003

出　　处：《低温与特气》2009年第1期18-21,共4页Low Temperature and Specialty Gases

基　　金：江苏省高校自然科学基金资助项目(04KJB440030);江苏省油气储运技术重点实验室资助项目(ZDK0602004)

摘　　要：高压长输天然气在进入城市燃气管网前需降压,透平膨胀机、涡流管、节流阀是典型的燃气调压装置。以火用概念为基础,以火用平衡为工具,对涡流管、节流阀、透平膨胀机三种燃气调压装置进行了全面的热力学分析。结果表明:透平膨胀机的过程火用损失最小,效率最高,显示出其在调压过程中的热力学完善性。The high-pressure natural gas transported by long-distant pipeline has to experience pressure reduction before supplying into the city gas pipe network. The turbo expander, vortex tube and throttle valve are the representative equipments for pressure regulation of gas. The comprehensive thermodynamic analysis with regard to above mentioned equipments is underway, demonstrating that turbo expander possesses thermodynamic perfection in the process of pressure regulation with the least course exergy loss and the most exergy efficiency.

关 键 词：[火用] 透平膨胀机 涡流管 节流阀 

分 类 号：TB653[一般工业技术—制冷工程]