Abstract
Nowadays, environmental and energy problems are becoming increasingly prominent. Nuclear power plants are an important means to solve these two problems. Therefore, research on the reliability of nuclear power plants is closely related to environmental and energy issues. The reliability research of nuclear safety valves has always been the top priority in the reliability research of nuclear power plants, so the reliability of the operation performance of such relief valves must be considered under seismic conditions. This article borrows ANSYS to carry out fluid-solid coupling simulation of relief valves, including simulations under seismic conditions and non-seismic conditions, and explores changes during opening and closing under various conditions, including the opening height, pressure and velocity in internal flow field ,inlet pressure ,solid stress and solid strain. Finally, a test comparison shows that the effect of longitudinal seismic load on the return pressure of the relief valve can be ignored.
Highlights
Nowadays, environmental and energy problems are becoming increasingly prominent, and nuclear power plants are an important means to solve these two problems
The reliability research of nuclear safety valves has always been the top priority in the reliability research of nuclear power plants, so the reliability of the operation performance of such safety valves must be considered under seismic conditions
Many flow field analysis and unidirectional fluidsoild coupling analysis in the simulation of relief valves in existing studies are studied while there are few studies on two-way fluid-solid coupling, so this paper uses twoway fluid-solid coupling to analyze the reliability of the relief valve in seismic conditions that used in nuclear power plant
Summary
Environmental and energy problems are becoming increasingly prominent, and nuclear power plants are an important means to solve these two problems. Research on the reliability of nuclear power plants is closely related to environmental and energy issues. The relief valve is an automatic valve It can discharge a rated amount of fluid by using the pressure of the medium, so as to prevent boilers, pressure vessels and other equipment from being damaged by overpressure. It can ensure the normal operation of the equipment and the safety of personnel. Many flow field analysis and unidirectional fluidsoild coupling analysis in the simulation of relief valves in existing studies are studied while there are few studies on two-way fluid-solid coupling, so this paper uses twoway fluid-solid coupling to analyze the reliability of the relief valve in seismic conditions that used in nuclear power plant
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