摘要介绍了液化天然气(LNG)高压外输泵的结构特性。结合某工程实例和相关工程设计标准规范,归纳并阐述了高压外输泵平面布置的要求以及应遵循的基本原则。总结了国内LNG接收站中高压外输泵的两种布置方式,并给出了高压外输泵区典型的平面布置方案。从管道及保冷材料选择、管道柔性设计、管道支架设计3个方面阐述了高压外输泵管道设计要点,并给出了一种安全可靠、整齐简洁的进出口管道布置方案。The structural characteristics of LNG high pressure export pump are introduced.Combined with an engineering example and relevant engineering design standards and specifications,the requirements of high-pressure pump layout and the basic principles to be followed are summarized and elaborated.Two layout modes of high-pressure export pump in domestic LNG terminal are summarized,and the typical plane layout scheme of high-pressure export pump area is given.The design points of high-pressure pump pipeline are elaborated from three aspects:pipeline and cold insulation material selection,pipeline flexibility design and pipeline support design.A safe,reliable,neat and concise arrangement scheme of inlet and outlet pipelines is also given.
关键词LNG 高压外输泵 平面布置 管道设计 低温管道 保冷材料 柔性设计LNG high pressure export pump plane layout pipeline design low temperature pipeline cold insulation material flexible design
