专用灭火剂浓度测试设备研制及其应用  

Development and Application of Special Extinguishing Agent Concentration Measurement

作　　者：吴燕燕[1] 杨小龙[1] 李海涛 罗铁苟[1] 郑友兰[1] 闵兴明[1] WU Yanyan;YANG Xiaolong;LI Haitao;LUO Tiegou;ZHENG Youlan;MIN Xingming(Electro-mechanism System Department,China Helicopter Research and Development Institute,Jingdezhen 333001,China;Hunan Cangshu Aerospace Technology Co.,Ltd.,Changsha 410201,China)

机构地区：[1]中国直升机设计研究所机电系统部,景德镇333001 [2]湖南苍树航天科技有限公司,长沙410201

出　　处：《航空工程进展》2020年第5期746-751,共6页Advances in Aeronautical Science and Engineering

摘　　要：直升机(飞机)动力舱灭火系统进行试验时需要准确测量灭火剂浓度随时间变化情况。利用空气中不同百分比的灭火剂流经多孔塞产生不同流阻的原理,研究并标定流阻与灭火剂浓度的关系;研制灭火剂浓度测试设备,并将该设备应用于多个型号的地面试验。结果表明:该设备响应灵敏,能实时反应动力舱内灭火剂浓度的变化情况,满足直升机(飞机)动力舱灭火系统地面模拟试验要求。It is necessary to measure the situation of extinguishing agent concentration along with time in the ground simulation test of helicopter/airplane powerplant.The principle that the different percentage of agent in the air has different flow resistances when these agents passing through some porous plug is used,the relation of agent concentration and flow resistance is researched and confirmed by the calibration.The special extinguishing agent concentration measurement is developed,and used in the ground simulation test of several helicopters.The results show that,the measurement has sensitive response,can reflect the varying situation of extinguishing agent concentration in real-time,and satisfy the requirement of ground simulation test in the fire extinguisher system of helicopter/airplane powerplant.

关 键 词：直升机 专用灭火剂浓度测试设备 灭火剂浓度 地面模拟试验 动力舱 

分 类 号：V244.12[航空宇航科学与技术—飞行器设计]