核电蒸汽发生器更换时主管道的封堵装置和方法
By designing a foldable sealing device, the problem of iron filings generated during the cutting of the main pipeline during steam generator replacement entering the reactor was solved, achieving efficient sealing and safe plugging effect, and improving the safety and operating efficiency of nuclear power plants.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA NUCLEAR POWER ENGINEERING COMPANY LTD
- Filing Date
- 2024-01-04
- Publication Date
- 2026-07-17
AI Technical Summary
During the replacement of steam generators in nuclear power plants, waste such as iron filings generated when cutting main pipelines can easily enter the reactor primary circuit, making cleanup difficult and affecting nuclear safety.
A foldable plugging device was designed, including a plugging component and a conveying component. The plugging component can enter the main pipeline through the steam generator manhole in a folded state and unfold to seal at a designated position to prevent iron filings from entering the reactor.
It effectively prevents foreign objects such as cutting iron filings from entering the reactor primary circuit, improving nuclear safety. It is easy to operate and does not affect the removal of the steam generator, thus improving work efficiency and safety.
Smart Images
Figure CN117889287B_ABST