Maintenance equipment for cold-state sealing test of main valve and secondary pilot valve of MSR safety valve

• Main Authors: WANG YING, HAN JIE, LI YONG, YUAN JIANGTAO, JIANG WENJIE, HUANG HUA, LIAO MING, GUO KEKE, XIA SONGHAO, DING CHENPAN, RUAN HANGZHE, LIU HUICHAO, SHEN YONGBO, SHU ZHIFENG
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The utility model relates to the technical field of safety valve sealing test detection, in particular to maintenance equipment for a cold-state sealing test of a main valve and a secondary pilot valve of an MSR safety valve. According to the maintenance equipment, an MSR safety valve sealing performance verification device is connected with an air supply unit through an air inlet interface; a compressed air outlet of the MSR safety valve sealing performance verification device is connected with a test joint of the main valve inlet test flange; the main valve inlet test flange is connected with the main valve inlet flange, and the main valve outlet test flange is connected with the main valve outlet flange; the secondary pilot valve outlet test connector is connected with a safety valve secondary pilot valve piston cavity plugging opening. Leakage test joints on the main valve outlet test flange and the secondary pilot valve outlet test joint are respectively connected with a bubble counter. According to the