Pressurization special system for pressurized water reactor pressure vessel sealing performance detection and detection method thereof

• Main Authors: JU WENHUA, XUE HONGLEI, XIE XIAOMING, WANG JIANGUO, ZHANG YUGUO, YU FENG, TANG KUNLIN, HUANG RENZHONG, PENG JUN, LI FUCHUN
• Format: Patent
• Language: Chinese; English
• Published: 19.02.2021
• Subjects: NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS

The invention discloses a pressurization special system for pressurized water reactor pressure vessel sealing performance detection and a detection method thereof, the pressurization special system comprises a pipeline, a manual pressurization pump communicated with the pipeline, a water storage tank, a joint assembly, a catcher, and a vacuum pump communicated with the catcher, wherein the joint assembly comprises a joint assembly A used for being communicated with an inner sealing ring cavity and an outer sealing ring cavity to be detected, and a joint assembly C communicated with a leakage detection pipe. A vacuum water absorption working mode is adopted, the pressure of a mixed phase is changed into single pressure by using an extreme approximation method, and the technical problem thata sealing ring cavity is filled with qualified test water is solved; by adopting a scheme of accelerating gas convection on the surface of liquid and reducing gas pressure, a method of quickly converting water from liquid to