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介绍了高温气冷堆主蒸汽隔离阀的性能参数、结构特点及技术要求。分析了主蒸汽管道间墙壁温度场及阀门模态变形。给出了阀体锻造和热处理过程,及按核阀规范标准对其各项性能的试验验证。
The performance parameters, structural characteristics and technical requirements of the main steam isolation valve for HTR are introduced. The temperature field of the wall between the main steam pipe and the valve modal deformation are analyzed. The valve body forging and heat treatment process is given, as well as the test verification of its performance according to the standard of nuclear valve.