氢氧发动机试验低温管路绝热影响的研究

Research on the Effect of Cryogenic Pipeline Thermal Insulation in Hydrogen/Oxygen Engine Test

总结了氢氧火箭发动机地面试验中低温管道绝热造成的影响，并作了简要分析。以液氢加注管道为例，探讨了改造方案，提出用真空多层绝热方式改造试车台低温管路系统的思想，并介绍了改造后的使用效果。

The effect of cryogenic pipeline thermal insulation during hydrogen/oxygen rocket engine ground test is concluded and briefly analysed. Taking liquid hydrogen fueling pipeline for example,this paper discusses the reconstruction scheme, puts forward the vacuum multilayer thermal insulation technology to reconstruct test stand cryogenic pipeline system,and introduces the system performance after reconstruction.