高温高压大直径法兰结构及其力学性能分析

Mechanical Properties Analysis of Large-scale Flange Under High Temperature and High Pressure

为满足高温、高压、大直径等工作环境和参数要求,采用Taylor-Waters法设计了工作压力为17.3MPa、工作温度为350℃、公称直径为1 000 mm的法兰及其密封垫片。建立了法兰及其密封垫片的有限元模型,计算了法兰和垫片在高温、高压等载荷作用下的应力和应变,并进行了强度和刚度分析与校核。计算结果表明,所设计的法兰及其密封垫片的力学性能能够满足高温、高压的恶劣工作环境要求。

In order to meet the requirements of high temperature,high pressure,large diameter and other working conditions,the Taylor-Waters method was adopted to design the flange and gasket,and the working pressure is 17.3 MPa,the working temperature is 350℃,and the nominal diameter is 1000 mm. The finite element model of flange and gasket were established,the stress and strain of flange and gasket under high temperature and high pressure were calculated,then the check of strength and stiffness were carried out. The calculation results show that the mechanical properties of the designed flange and its sealing gasket can meet the requirements of high temperature and high pressure.