Background:
Valves are an important part of nuclear power plants and are the control
equipment used in nuclear power plants. It can change the cross-section of the passage and the flow
direction of the medium and has the functions of diversion, cutoff, overflow, and the like. Due to the
earthquake, the valve leaks, which will cause a major nuclear accident, endangering people's lives and
safety.
Objective:
The purpose of this study is to synthesize the existing valve devices, summarize and analyze
the advantages and disadvantages of various devices from many literatures and patents, and solve some
problems of existing valves.
Methods:
This article summarizes various patents of nuclear-grade valve devices and recent research
progress. From the valve structure device, transmission device, a detection device, and finally to the
valve test, the advantages and disadvantages of the valve are comprehensively analyzed.
Results:
By summarizing the characteristics of a large number of valve devices, and analyzing some
problems existing in the valves, the outlook for the research and design of nuclear power valves was
made, and the planning of the national nuclear power strategic goals and energy security were planned.
Conclusion:
Valve damage can cause serious safety accidents. The most common is valve leakage.
Therefore, the safety and reliability of valves must be taken seriously. By improving the transmission of
the valve, the problems of complicated valve structure and high cost are solved.
The spring of internal combustion engine valve mechanism