晃动对LNG板翅式换热器性能影响模拟分析  

Simulation and Analysis on Effect of Shaking on Performance of LNG Plate-fin Heat Exchanger

作　　者：李秋英[1] 陈杰[1] 尹全森[1] 

机构地区：[1]中海石油气电集团有限责任公司,北京100027

出　　处：《煤气与热力》2017年第2期15-19,共5页Gas & Heat

基　　金：国家高技术研究发展计划(863计划);项目编号:2013AA09A216

摘　　要：为提高板翅式换热器在海上浮式天然气液化平台等应用条件下的换热效果,对目前常用结构进行了优化设计,提出了将板翅式换热器换热单元浸泡于外部制冷剂中的结构。为考察该结构在浮动平台上的适用性,采用ANSYS FLUENT软件对晃动工况下的换热性能进行模拟计算,与静止工况下的换热性能进行比较。结果表明,晃动对优化后的板翅式换热器换热性能影响较小,该换热器结构具有良好的换热性能。With the purpose of improving the ef- ficiency of plate-fin heat exchanger used on offshore floating natural gas liquefaction platform, the optimized design of its common structure is carried out. A new structure in which the heat transfer unit is immersed in external refrigerant is proposed. In order to investigate the applicability of the new structure on floating platform, ANSYS FLUENT software is employed to simu- late the heat transfer performance under shaking condi- tion. The simulated results are compared with those under static condition. The results reveal that shaking has less influence on the performance of the optimized plate-fin heat exchanger, and its structure has excellent heat transfer performance.

关 键 词：板翅式换热器 晃动 浮式平台 换热性能 

分 类 号：TE646[石油与天然气工程—油气加工工程]