安全阀排放载荷计算及管路支架设计分析

Relief Valve Discharge Load Calculation and Pipeline Support Design Analysis

安全阀在排放过程中会对管路系统造成极大冲击力,为保证安全阀排放管路系统的安全,需要合理设计管路支吊架减小管道应力及变形。本研究通过ASME B31.1排放载荷计算方法,求得安全阀对管道的排放载荷。采用仿真分析方法计算安全阀在排放状态下的应力及位移分布,并通过在安全阀出入口管道、安全阀底部设计支架来减小最大应力及位移。研究结果表明,安装支架可以减小安全阀排放管路系统的应力及位移,从而保证回路安全。其中,在安全阀底部安装支架要优于在安全阀出入口管道安装支架的方案。

Safety valve in the discharge process will cause a great impact on the pipeline system,in order to ensure the safety of safety valve discharge pipeline system,it is necessary to design a reasonable pipeline support hanger to reduce the pipeline stress and deformation.In this study,the discharge load of safety valve on pipeline is calculated by ASME B31.1 discharge load calculation method.The stress and displacement distribution of the safety valve in the discharge state was calculated by simulation analysis method,and the maximum stress and displacement were reduced by designing supports in the inlet pipe and the bottom of the safety valve.The results show that the installation bracket can reduce the stress and displacement of the safety valve discharge pipeline system and ensure the safety of the circuit.It is better to install the bracket at the bottom of the relief valve than in the inlet and outlet pipe of the relief valve.