精品-基于ANSYS的LNG船用超低温阀门的数值模拟分析.pdf

文档介绍：2010 年第 1 期低温工程 No. 1 2010
总第 173 期 CRYOGENICS Sum No. 173
基于 ANSYS 的 LNG 船用超低温阀门的数值模拟分析
吴若菲1 柳建华1 吴堂荣2 葛琪林1 朱立伟1
1 上海理工大学制冷技术研究所上海 200093
2 中国船舶重工业集团公司七○四研究所上海 200031
摘要应用有限元分析软件分别对通径为 DN15 的 LNG 船用超低温阀门在管路中开启与关闭
状态稳态热力分析。研究了阀颈长度,阀颈与阀杆之间的,阀颈的厚度对填料函温度的影响。研究结
果表明,阀颈长度和阀颈厚度是影响填料函温度的主要因素,阀颈与阀杆之间的间隙尺寸对填料函温
度影响很小。
关键词超低温阀门有限元模拟 LNG
中图分类号TB657 文献标识码A 文章编号1000-6516201001-0043-05
Numerical Simulation of cryogenic valve used in LNG Carrier
Wu Ruofei1 Liu Jianhua1 Wu Tangrong2 Ge Qilin1 Zhu Liwei1
1 Refrigeration Technology Institute University of Shanghai for Science and Technology,Shanghai 200093,China
2 China Shipbuilding Insdustroy Corporation,Shanghai 200031,China
AbstractFinite Element Method was used to analyze the heat transfer of the cryogenic valve used in
LNG Carrier. The opening state and closing state of the valve was simulated respectively. The impact of the
gap between valve neck and valve stem on the temperature of stuffing box were also studied by numerical
simulation as well as the thickness of valve neck. The result of the study shows that the thickness of the
valve neck has much more impact on the temperature of the stuffing box,while the gap between valve neck
and valve stem has little. This result can provide useful information for designing the cryogenic valve.
Key words cryogenic valveFinite Element AnalysissimulationLNG