可用于氘氚气体输运的气体循环增压泵性能测试  

Development of Circulating and Boosting Pump for Tritium Transportation

作　　者：易均[1] 周帆 邓合 岳晓斌[1] 王宝瑞[1] 韩志甲[1] 王进[1] YI Jun;ZHOU Fan;DENG He;YUE Xiao-bin;WANG Bao-rui;HAN Zhi-jia;WANG Jin(Institute of Materias,China Academy of Engineering Physics,Mianyang 621908,China)

机构地区：[1]中国工程物理研究院材料研究所,四川绵阳621908

出　　处：《真空》2023年第4期69-74,共6页Vacuum

摘　　要：针对ITER氚循环增压输运需求,自主研制了气体循环增压泵,包括主泵和后级泵。主泵采用斜盘式往复柱塞结构,3个往复柱塞完成五级压缩,达到粗真空和增压效果。后级泵采用摇摆柱塞式结构,以增加流量并降低极限真空,使入口压力达到50Pa的同时出口压力仍能达到0.4MPa。使用全金属双层波纹管完全隔离主轴系统和工作气腔,保持了输运气体的纯净度。使用金属C型密封圈作为气腔与外部环境的静密封,整机密封漏率低于1.0×10^(-7)Pa·m^(3)/s。测试结果表明,自研气体循环增压泵可以满足氚循环增压输运要求。For the requirement of tritium gas transportation,a set of bellow pump is developed,which includes a boosting pump and a rocking pump.Swashplate-rod with piston structure is developed for the boosting pump,in which three reciprocating plunger pistons are adopted to get high compression ratio to deal with the low vacuum and booster.Rocking piston is adopted in rocking pump to increase the gas flow and decrease the vacuum pressure,which ensure the inlet pressure is 50Pa and outlet pressure is 0.4MPa.Double bellows are used to separate the tritium from the shaft system,which can prevent the transporting gas from any pollution.Helicoflex sealing is used to separate the tritium from the environment,and leaking ratio of 1.0×10^(-7)Pa·m^(3)/s is achieved.The self developed circulating and boosting pump can meet the request of tritium boosting transportation.

关 键 词：CFETR ITER 氚 辐射气体 洁净真空 增压泵 波纹管泵 

分 类 号：TL353.12[核科学技术—核技术及应用]