文档介绍：SHIP ENGINEERING 船舶工程
Supplement2 2010 总第 32 卷,2010 年增刊 2

LNG 船用超低温阀门设计研究

吴堂荣,唐勇,孙晔,孙萌
(中国船舶重工集团公司第 704 研究所,上海 200031)

摘要:LNG 船液货系统超低温阀门的设计、制造和试验过程,
温阀门材料在低温下的金相结构和应力变化进行分析,提出材料选用的原则和范围,明确零部件制
造过程中进行深冷处理的重要性;对超低温阀门的特殊结构设计进行了分析,并通过模拟仿真,得
出颈部长度、颈部壁厚、阀盖与阀杆间隙、密封力等重要设计参数值的选用原则;介绍了阀门低温
性能试验装置系统和试验内容及要求.
关键词:LNG 船;超低温阀门;材料选用;设计参数值
中图分类号:TH134, +2 文献标志码:A 文章编号:1000-6982 (2010) S2-0073-06

Design and Research of Cryogenic Valve for LNG Tanker

WU Tang-rong, TANG Yong, SUN Ye, SUN Meng
( Research Institute, CSIC, Shanghai 200031, China)

Abstract: The design, manufacture and test of the cryogenic valve for LNG tanker have special
requirements. By analyzing the crystallographic structure and the stress changing of the cryogenic valve’s
material, the paper indicates the principles of the way to choose the material and the range of the material
and confirms the importance of the parts’ sub-zero treatment in manufacturing operation. We get the
principles of how to choose the important design parameter such as the jugular length, the jugular
thickness, the clearance between the valve cap and the valve rod, sealing stress and so on by means of
analyzing the special structure of the cryogenic valve and analog simulation. The paper also presents the
semi plant and the test contents and the r