微重力燃烧特点及空间站火灾预警技术分析  

Analyse on Flame Characteristics in Microgravity Condition and Fire Alarm Technology in Apace Station

作　　者：任小孟[1] 徐新宏[1] 方晶晶[1] 江璐[1] 巴剑波[1] Ren Xiaomeng;Xu Xinhong;Fang Jingjing;Jiang Lu;Ba Jianbo(Naval Medical Research Institute,Shanghai 200433,China)

机构地区：[1]海军医学研究所,上海200433

出　　处：《山东化工》2018年第21期116-119,共4页Shandong Chemical Industry

基　　金：载人航天领域预先研究第三批项目(项目编号020401)

摘　　要：针对空间站火灾预警问题,分析了重力场、压力、空气流速对火焰外观和燃烧的作用机制,阐明了微重力和高压条件对可点燃性的增强作用及空气流动对持续燃烧性的影响。结合空间站火灾预警装置的应用情况,对比分析了现有能量型和烟雾型探测技术存在的问题,提出了气体型探测技术具有虚警率低、预警迅速、布设简便的优势,是未来应用于空间站火灾预警的重要备选技术。Aiming at the fire alarm in the space station, the effect mechanism of gravitational fields, pressure and gas velocityto flame apperanee and combustion were analyzed. The enhancement of ignition in mierogravity and high pressure condition and the effect of velocity on flammability were discussed. Based on the application of fire alarm systems in the space station, the problem of energy- based and smog - based detection technologies were analyzed. The gas - based detection technology had several advantages such as low false alarm rate, rapid prediction and easily arrangement, and it is the most protential technology to alarm the space station fire in the future.

关 键 词：空间站 燃烧 火灾 预警 

分 类 号：V524[航空宇航科学与技术—人机与环境工程]