主蒸汽母管截止阀开裂原因分析及预防措施

Cause Analysis and Preventive Measures for Cracking of Main Ste am Header Globe Valve

对主蒸汽母管排查隐患时,发现主蒸汽母管某截止阀阀体法兰面开裂,因此进一步通过渗透检测、硬度检测、金相检验等技术对阀体进行检验检测。详细介绍了阀门开裂的检验检测过程并分析阀体开裂的主要原因和预防措施。

During the troubleshooting of the main steam main pipe,it was found that the flange surface of the main steam main pipe globe valve body was cracked,and the valve body was further inspected and tested through penetrant testing,hardness testing,metallographic testing,and other techniques.The inspection and detection process of valve cracking was introduced in detail,and the main causes and preventive measures of valve cracking were analyzed.