核电厂商业运行前管道支吊架检查与调整

Examination and Adjustment of Piping Hangers before Commercial Operation in NPPs

详细描述在核电厂调试期间对管道支吊架进行冷、热态检查的依据、内容和方法;对检查出有异常支吊架的维修、调整策略及机组临界前热态工况下管道支吊架的验证方式加以说明。提出了支吊架的安装、改造和在役检查中的注意事项,力求通过对管道支吊架的检查与调整,使管道支吊架处于正常的工作状态,保证系统管道安全可靠地运行。

This paper describes the basis, content and method of the cold and hot examination for the piping hangers during the plant commissioning, and explains the maintenance and regulation strategy of those abnormal hangers after inspection, and also expatiates the verification ways of piping hangers during hot condition before the plant is critical. Besides, this paper puts forward the notice items of piping hangers while installation, reconstruction and in-service inspection, and tries to＇make sure that the piping hangers are under normal working condition by the means of the inspection and regulation to the piping hangers, so that the system pipes can work safely and reliably.