Abstract: According to pipeline design of baking system in HL-2M tokamak, the piping stress calculation 
model of baking system is established. The pipeline initial support of baking system is designed, and the 
maximum temperature distribution in the system is used to calculate the thermal stress of baking system, and 
analyze the pipeline stress and the load of equipment nozzle. Based on the results of thermal stress calculation, the 
pipeline layout was optimized, the design of support was improved, the stress of baking system was checked, the 
reliability of baking system was verified, the calculation of nozzle displacement was complete. 

Key words: HL-2M tokamak, Baking system, Calculation of thermal stress, Reliability verification 

摘要： 根据 HL-2M 装置烘烤系统管路设计，建立烘烤系统的管道应力计算模型。对烘烤系统管路作初始
支架设计，并采用系统内的最高温度分布，对烘烤系统进行热应力计算，分析管道应力及设备管口载荷。以热应
力计算结果为依据，对管路布置进行优化，并改善支架的设计，对烘烤系统进行应力校核计算，完成烘烤系统可
靠性验证计算，完成了管口位移量计算。

关键词: HL-2M 装置；烘烤系统；热应力计算；可靠性验证