Analysis and Optimization of the Opening Dynamic Characteristics of Molten Salt Check Valves for Concentrating Solar Power

The poor opening dynamic characteristics of molten salt check valves, used in concentrating solar thermal systems, constitute the main cause valve disc oscillation and low pressure difference difficulty during delivery. A swing is designed to meet requirements high-temperature high-pressure sealing anti-crystallization flow channels. transient dynamics model motion components established, mesh UDF (user-defined function) techniques are simulate non-constant hot process analyze process. Topological optimization proposed for first time order improve performance valve, topological based on solid isotropic material penalty (SIMP) with variable density method thermal–fluid–mechanical coupling method. design also verified dangerous working condition a hammer. results show that mass component reduced by 57.76% after while meeting strength stiffness. optimized achieves larger angle faster opening, full increased 6°, positive resting 5 kPa, minimum 8.9 smoother, problem avoided. study provides researchers use optimize its power, which great significance efforts stability transport system.