中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (1): 109-115.doi: 10.16265/j.cnki.issn 1003-3033.2021.01.016

• 安全工程技术 • 上一篇    下一篇

长贮库房内偏二甲肼扩散浓度快速估算方法

崔村燕1 副研究员, 柳宁远2 助理研究员, 段永胜3 讲师, 同江1 助理研究员   

  1. 1 北京跟踪与通信技术研究所,北京 100094;
    2 中国空气动力研究与发展中心,四川 绵阳 621000;
    3 航天工程大学 宇航科学与技术系,北京 101416
  • 收稿日期:2020-10-27 修回日期:2020-12-13 出版日期:2021-01-28 发布日期:2021-08-18
  • 作者简介:崔村燕 (1977—),女,安徽蚌埠人,博士,副研究员,主要从事航天发射总体理论与技术方面的研究。E-mail:ccy6655@126.com。

Fast estimation method of UDMH diffusion concentration in long storage warehouse

CUI Cunyan1, LIU Ningyuan2, DUAN Yongsheng3, TONG Jiang1   

  1. 1 Beijing Institute of Tracking and Telecommunications Technology, Beijing 100094, China;
    2 China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China;
    3 Department of Aerospace Science and Technology, Space Engineering University, Beijing 101416, China
  • Received:2020-10-27 Revised:2020-12-13 Online:2021-01-28 Published:2021-08-18

摘要: 为快速获取判断偏二甲肼(UDMH)长贮库房内泄漏位置所需的关键信息,基于数值模拟方法研究储罐、壁面和通风状态等对长贮库房内UDMH蒸气扩散规律的影响,进而修正理想气体扩散公式中的扩散参数,使其适用于长贮库房内特殊布局和状态条件下UDMH扩散浓度分布的快速估算,并分析不同泄漏位置下该计算公式的误差。结果表明:泄漏位置与储罐之间的相对位置对当地扩散参数影响较大,使得储罐附近快速估算浓度误差相对较大,但储罐之间的平均误差不超过10%。

关键词: 长贮库房, 偏二甲肼(UDMH), 扩散浓度, 数值模拟, 储罐

Abstract: In order to quickly obtain key information which is necessary to determine location of leakage source in long storage wareroom of UDMH, influence of storage tank, wall surface and ventilation state on diffusion law of UDMH vapor in wareroom was studied based on numerical simulation method. Furthermore, parameters in gas diffusion formula were revised to make it suitable for fast estimation of UDMH diffusion concentration distribution under special layout and state conditions in long storage warerooms. Finally, errors of calculation formula under different leak locations were analyzed. The results show that the relative position between leak location and storage tank has a greater impact on local diffusion parameters, which makes error of fast estimation result nearby storage tanks larger, but average error between storage tanks is less than 10%.

Key words: long storage wareroom, unsymmetrical dimethyl hydrazine (UDMH), diffusion concentration, numerical simulation, storage tank

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