液化天然气加注系统真空绝缘双壁管管系应力分析及优化  

Stress Analysis and Optimization of Vacuum Insulated Double Wall Pipe for Liquefied Natural Gas Refueling System

作　　者：李艳 LI Yan(Ship Engineering Department,Jiangsu Shipping College,Nantong 226010,China)

机构地区：[1]江苏航运职业技术学院船舶与海洋工程学院,江苏南通226010

出　　处：《石油化工设备》2024年第2期39-44,共6页Petro-Chemical Equipment

基　　金：南通市基础科学研究计划项目(JCZ2022053)。

摘　　要：以某双燃料船舶液化天然气加注系统的真空绝缘双壁管管系为例,通过理论应力计算和有限元软件应力计算结果的比较,验证了有限元应力计算软件的可行性。基于最大允许跨距计算和设计图样,对真空绝缘双壁管管系进行建模、应力计算及分析,确定了管系最大应力数值和应力过载节点。通过将支座类型由Anc改为Guide,并减少支座数量,完成了真空绝缘双壁管管系支座的优化设计,优化设计后各应力过载节点的二次应力均小于许用应力。Taking the vacuum insulated double wall pipe system of the liquefied natural gas refueling system on dual-fuel vessels as an example,the feasibility of the stress software was verified by comparing the results of theoretical stress calculation and finite element calculation by using stress software.Based on the maximum span calculation and design diagram,stress calculation and analysis of the pipeline system were carried out to determine the maximum stress and overload stress points of the pipeline.By changing the support type from Anc to Guide and reducing the number of supports,the optimization designs of vacuum insulated double wall pipe support were completed.After optimization,the secondary stress of each overload stress point was less than the allowable stress.

关 键 词：真空绝缘双壁管 液化天然气 加注系统 应力 支座 

分 类 号：U665[交通运输工程—船舶及航道工程]