Device for detecting sealing performance of main steam safety valve of nuclear power station

• Main Authors: HAN WENYUE, TAO RUNZHI, CHEN XIN, WANG YONGPENG, ZHAN YUBIN, GAO PAN, YU SHUQI, WANG YUNXI
• Format: Patent
• Language: Chinese; English
• Published: 15.08.2023
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The utility model belongs to the technical field of equipment maintenance, and particularly relates to a nuclear power station main steam safety valve sealing performance detection device which comprises a flat crystal device, a magnetic base, a magnetic control knob, a connecting rod, a universal joint and a monochromatic light source. A magnetic control knob is arranged on the magnetic base; the magnetic base is connected with one end of the connecting rod, and the other end of the connecting rod is provided with a monochromatic source; a universal joint is further arranged on the connecting rod; and the optical flat device is horizontally placed on an object to be detected. According to the utility model, morphology information which can be identified by naked eyes of the sealing surfaces of the valve core and the valve seat of the main steam safety valve is fed back by utilizing a light interference technology, so that maintenance personnel can conveniently measure the grinding maintenance quality of the