新型抗冲击波阀实验与数值分析研究

Field Test and Numerical Simulation of New Blast Valve

核电厂在安全设计时,需要重点考虑可能发生的爆炸情况,所有相关设施必须能够抵御冲击波的作用,抗冲击波阀作为厂房与外界空气流通的重要设备,应兼顾通风及抵抗冲击波的功能。本文针对一新型抗冲击波阀进行了实验研究,通过高压空气系统激波管实现了设计荷载,并考察抗冲击波阀样机在荷载作用下的响应,包括关闭时间、阀体变形以及后续使用功能。结合实验观测数据,通过有限元数值分析进一步验证了该抗冲击波阀模型的各项响应参数。结果表明:该抗冲击波阀能够抵御设计冲击波荷载,试验样机测试后无变形,且能够保证使用功能:数值分析结果和实验数据基本一致,证明该模拟方法精确度较高可以作为该类抗冲击波阀设计时的依据。

In the safety design of nuclear power plants,itis necessary to consider the possible explosion situation,and all relevant facilities must be able to withstand the effect of shock waves.Blastvalve,asan important equipment for air circulation between the plant buildingand the outside should have both the functions of ventilation and shockwave resistance In this paper,an experimental study is carried outon anew blast valve.The design load is realized through theshock tubeof the high-pressureair system,and the response including closing time,bodydeformation and subsequent use of the blast valve under the load is investigatedCombinedwiththe experimental observation data,the response parameters of the blast valve model were further verified by finite element numerical analysis The results show that the blast valve can resist the designed shockwave load,and the test prototype has no deformation after testing and canensure the use of function.Thenumerical analysis results are basically consistent with the experimental data,which proves that the simulation method is highly accurate and can be used asa basis for the design of blast valves.