
LNG工艺中压缩机的选型研究
Study on Compressor Selection in LNG Process
李莹珂 蒲黎明 祁亚玲 王 科 姜 宁
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作者单位:中国石油集团工程设计有限责任公司西南分公司
中文关键字:LNG;离心式压缩机;往复式压缩机;螺杆式压缩机;电动机;燃气轮机;蒸汽轮机
英文关键字:LNG; Centrifugal compressor; Reciprocating compressor; Screw compressor; Motor; Gas turbine; Steam turbine
中文摘要:我国已经进入LNG行业快速发展的时期,压缩机是LNG处理过程中最核心的转动设备。综述了LNG液化厂中原料气、分子筛脱水装置的再生气、天然气液化制冷剂和BOG增压过程中工艺的要求和介质的特点,根据常用压缩机的特性和适用范围,提出LNG工艺中压缩机选型原则与方法。同时提出了LNG处理过程中压缩机驱动方式的选择原则和冷却方式的选择方法,为LNG工厂中压缩机及配套的驱动和冷却方式的合理选型提供了参考依据。
英文摘要:
China
has entered a period of rapid development in LNG industry. LNG compressor is a
core rotating equipment in LNG treatment process. Described is technological
process in LNG treatment plant and technological requirements and characteristics
of such media as feed gas, regeneration gas, natural gas liquefaction
refrigerant in molecular sieve dehydration unit during BOG pressurization process.
Combined with characters and application range of common compressor, proposed are
principle and method of LNG compressor type selection, compressor drive mode
selection and cooling mode selection in LNG treatment process, which can
provide useful reference for drive mode selection of compressor and associated
equipment and cooling mode selection in LNG treatment plant.