真空
真空
진공
VACUUM
2014年
5期
39-42
,共4页
环模设备%热沉%四极质谱计%真空度%检漏
環模設備%熱沉%四極質譜計%真空度%檢漏
배모설비%열침%사겁질보계%진공도%검루
environment simulation equipment%heat sink%quadrupole mass spectrometer%vacuum degree%leak detector
环模设备是指完成卫星等航天器热平衡热真空试验的地面环境模拟设备，通常包括容器、热沉、真空系统、液氮系统等多个分系统。根据相关标准要求，容器内真空度只有优于1.3×10-3 Pa 时才能开展环模试验。本文列举了几例环模容器真空度不满足要求的典型情况，从容器本体、热沉、真空系统设备、法兰等几个方面开展了泄漏分析，并提供了解决思路。
環模設備是指完成衛星等航天器熱平衡熱真空試驗的地麵環境模擬設備，通常包括容器、熱沉、真空繫統、液氮繫統等多箇分繫統。根據相關標準要求，容器內真空度隻有優于1.3×10-3 Pa 時纔能開展環模試驗。本文列舉瞭幾例環模容器真空度不滿足要求的典型情況，從容器本體、熱沉、真空繫統設備、法蘭等幾箇方麵開展瞭洩漏分析，併提供瞭解決思路。
배모설비시지완성위성등항천기열평형열진공시험적지면배경모의설비，통상포괄용기、열침、진공계통、액담계통등다개분계통。근거상관표준요구，용기내진공도지유우우1.3×10-3 Pa 시재능개전배모시험。본문열거료궤례배모용기진공도불만족요구적전형정황，종용기본체、열침、진공계통설비、법란등궤개방면개전료설루분석，병제공료해결사로。
The environment simulation equipment refers to the facility which is used to conduct the thermal balancing and the vacuum test for the spacecraft . It generally consists of serveral subsystems such as chamber , heat sink , vacuum system , liquid nitrogen system, etc. According to the related standard, the environment test could be carried out only when the vacuum degree exceeds 1.3×10-3 Pa. This paper lists several typical situations that the vacuum degree does not meet the requirements in the environment simulation equipment and performs some leakage analysis to chamber, heat sink, facilities of vacuum system and flange.Several means are proposed to solve these problems.
