压力容器法兰安装工况螺栓预紧载荷计算  

Calculation of Bolt Preload for Pressure Vessel Flange under Installation Case

作　　者：孙志刚 杨湖 Sun Zhigang;Yang Hu(Wuxi Chemical Equipment Co.,Ltd.,WuXi,Jiangsu 214131,China)

机构地区：[1]无锡化工装备股份有限公司,江苏无锡214131

出　　处：《化工与医药工程》2024年第4期50-53,共4页Chemical and Pharmaceutical Engineering

摘　　要：螺栓预紧载荷对螺栓法兰连接接头密封有重要影响,但压力容器设计标准中的法兰设计方法并不考虑法兰安装工况螺栓预紧力计算,对法兰密封有一定影响。针对一般设备,文章建议按WRC 538与PCC-1计算螺栓预紧载荷,但不设定垫片预紧力目标值,确定螺栓预紧载荷后反算出垫片压紧力作为参考即可。there is a significant impact on the sealing of bolted flange connection joints from bolt preload,but bolt preload under flange installation case is not considered in the flange design method in pressure vessel design standards,which causes some impact on flange sealing.Bolt preload can be calculated according to WRC 538 and PCC-1 for common equipment as per advice in this paper,but the gasket preload target value shall not be set,which can be determined as a reference after determining the bolt preload.

关 键 词：法兰 螺栓 预紧 

分 类 号：TQ051.2[化学工程]