压水堆堆顶CRDM抗震支承环焊接变形的分析及控制

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Analysis and Control of Welding Deformation of Nuclear Power Reactor Plant CRDM Anti-Seismic Ring

National Key Laboratory of Reactor System Design Technology, Nuclear Power Institute of China, Chengdu, 610041, China

摘要: 控制棒驱动机构(CRDM)抗震支承环是压水堆核电厂反应堆堆顶结构的重要部件之一,本文通过CRDM抗震支承环焊接变形实例,分析了焊接变形的原因及机理,并给出了焊接变形的控制措施,如设计结构优化、焊接过程控制、加工工艺优化等;通过实际加工案例证明,这些控制措施能够较好地控制CRDM抗震支承环的焊接变形。
- 控制棒驱动机构(CRDM) /
- 抗震支承环 /
- 压水堆 /
- 焊接变形 /
- 分析 /
- 控制
Abstract: CRDM anti-seismic ring is one of the most important parts of pressurized water reactor vessel closure head upper assembly,and this paper gives the example of anti-seismic ring welding deformation,analyzes the principle and mechanism of the deformation,and puts forward the control measures,such as structure optimizing,welding process control,and machining craft optimizing;Proved by the practical application,these measures could effectively control the deformation of anti-seismic ring.
- CRDM /
- anti-seismic ring /
- Press Water Reactor /
- Welding deformation /
- Analysis /
- Control