| Issue |
MATEC Web Conf.
Volume 306, 2020
The 6th International Conference on Mechatronics and Mechanical Engineering (ICMME 2019)
|
|
|---|---|---|
| Article Number | 04004 | |
| Number of page(s) | 5 | |
| Section | Power Electronics and Transmission Technology | |
| DOI | https://doi.org/10.1051/matecconf/202030604004 | |
| Published online | 14 January 2020 | |
Anti-seismic characteristics of safety valve and its spring failure prediction analysis
Harbin University of Science and Technology, School of Mechanical and Power Engineering, Heilongjiang Harbin 150080, China
* Corresponding author: daiye312@163.com
Safety valve is an important guarantee for nuclear power plant system. Its working environment is harsh, and medium is high-temperature corrosive. It is important to study the dynamic characteristics of nuclear safety valve under unsteady condition to improve the stability and safety of nuclear power plant piping system. Using the finite element method, mass simplification and Rayleigh method, the frequency response analysis of the safety valve and the spring is predicted to predict the seismic capacity under the earthquake load. Based on the verification of the dynamic characteristics of the valve body, the stress and strain analysis of the spring is carried out. To explore the failure condition of the safety valve spring, the lateral deviation linearity of the spring was tested and analyzed by setting up the offset test bench. The results show that the safety valve with the above analysis method can meet the working requirements under the shaking condition. The research results provide an important theoretical basis for the design and analysis of nuclear safety valves.
© The Authors, published by EDP Sciences 2020
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