核电厂阀门法兰螺孔检修装置
By designing an automated maintenance device for the bolt holes of valve flanges in nuclear power plants, the problem of bolt seizing caused by thread damage and foreign matter residue was solved, achieving efficient bolt hole repair and improved maintenance quality, while reducing radiation risks and operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YANGJIANG NUCLEAR POWER
- Filing Date
- 2024-03-13
- Publication Date
- 2026-07-17
AI Technical Summary
Minor thread damage and foreign object residue in the bolt holes of valve flanges in nuclear power plants can cause bolts to seize up. Existing manual repair methods are inefficient and costly, affecting the service life and reliability of valves, and posing a significant risk of radiation exposure to workers.
Design a valve flange bolt hole maintenance device for nuclear power plants, including a Y-direction moving mechanism, an X-direction moving mechanism, a rotating mechanism, a tensioning mechanism, and an actuator. Equipped with a detection, cleaning, drying, and polishing head, it achieves cleaning and repair of bolt holes through automated operation.
This improved the quality of nuclear-grade valve maintenance, reduced the radiation dose to maintenance personnel, ensured the safe and stable operation of the unit, shortened the maintenance cycle, and reduced operating costs.
Smart Images
Figure CN117983909B_ABST