三级膜片贮箱氦气检漏微压自动充气控制技术
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上海航天精密机械研究所,上海 201600

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V46

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Micro Pressure Automatic Inflation Control Technology of the Helium Leakage Detecting for the Three-stage Diaphragm Tank
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Shanghai Spaceflight Precision Machinery Research Institute,Shanghai 201600

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    摘要:

    针对三级膜片贮箱常压氦气检漏易出现的漏检问题,设计了微压自动充气系统,通过系统实现气腔、液腔微压状态下的自动充气、超压控制,解决了常压氦气检漏易出现的漏检问题。对比分析微压自动充气系统与传统手动充压操作。结果表明,微压自动充气系统的流量设计,完全能够将高压氦气减压到10、120 kPa微压压力,系统背压阀的设定能有效避免膜片超压翻转,检漏效果明显优于常压氦质谱检漏。该研究有效保证贮箱内膜片氦检过程中的安全性,提高三级膜片贮箱质量的可靠性,可用于后续其他产品微压充气试验。

    Abstract:

    A micro pressure automatic inflation system was designed to address the issue of missed detection under atmospheric pressure for three-stage diaphragm tanks.The system achieved automatic inflation and overpressure control in the gas and liquid chambers under micro pressure conditions,and solved the problem of missed detection helium gas leak detection under atmospheric pressure.Comparing and analyzing the micro pressure automatic inflation system with traditional manual inflation operation,the results show that the flow design of the micro-pressure automatic inflation system can reduce the high-pressure helium gas to micro-pressure levels of 10 kPa,120 kPa,the overpressure reversal of the diaphragm can be effectively avoided through the setting of the system''s back pressure valve,the missed detection effect is significantly better than that of normal pressure helium mass spectrometer missed detection.This research ensures the safety of the helium leak testing process for diaphragms within the tanks,enhances the reliability of the quality of three-level diaphragm tanks,and can be applied to subsequent micro-pressure inflation tests for other products.

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黄云,潘洋,贾跃杰,陈辉,石正波.三级膜片贮箱氦气检漏微压自动充气控制技术[J].宇航材料工艺,2025,55(3):114-118.

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  • 收稿日期:2023-11-16
  • 最后修改日期:2025-06-10
  • 录用日期:2024-04-22
  • 在线发布日期: 2025-06-27
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