浮空器囊体热合区域透氦率性能研究  

Research of Leakage Properties for Aerostat Envelope Welding Area

作　　者：朱善璋 董莉 ZHU Shan-zhang;DONG Li(38th Research Institute of CETC,Hefei 230088,China)

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230088

出　　处：《真空》2024年第4期75-79,共5页Vacuum

摘　　要：浮空器实际使用中氦气渗漏量远超理论计算值而极大地影响自身驻空性能。本文基于漏氦量误差产生原因,探讨了囊体热合缝部位的漏氦机理,通过热合区域透氦率试验,提出了改进思路和方法。针对长航时浮空器设计,研究了不同热合缝结构形式和工艺方法对漏氦率的影响以优选出低漏氦的浮空器囊体的成型技术。结果表明:通过优化囊体结构形式和工艺方法,如在囊体热合缝外侧热合或胶黏有保护性质的外热合条、尽量选用热合工艺加工等方式来有效提高囊体的阻隔、保型能力,可以提高浮空器的驻空时间。In actual use,the helium leakage of the aerostat is much larger than the theoretical value,which greatly affects the standing performance of the aerostat.In this paper,the mechanism of helium leakage at the envelope welding area was discussed based on the errors between the calculated and actual helium leakage values.Helium permeability tests in the envelope welding area were conducted,and improvement ideas and methods were proposed.Aiming at the design of the long-endurance aerostat,the forming technology of the low helium aerostat capsule was optimized by studying the influence of different structural forms and technological methods of the envelope welding on the helium leakage rate.The results show that optimizing the structural form and processing methods of the airship envelope,such as applying protective outer heat-sealing strips on the outside of the envelope heat-sealing seams,or using heat-sealing processes as much as possible,the barrier and shape retention capabilities of the envelope can be effectively improved,and the standing time of the aerostat can be increased.

关 键 词：浮空器 长航时 囊体热合技术 漏氦率试验 

分 类 号：TQ014[化学工程]