可燃性粉尘环境用高压细水雾自动灭火系统
High-pressure water mist automatic fire extinguishing system for flammable dust environment
【索引】孟祥豹,王俊峰,张延松,等.可燃性粉尘环境用高压细水雾自动灭火系统[J].工矿千亿国际app下载,2019,45(10):86-90.
【Reference】MENG Xiangbao,WANG Junfeng,ZHANG Yansong,et al.High-pressure water mist automatic fire extinguishing system for flammable dust environment[J].Industry and Mine Automation,2019,45(10):86-90.
【DOI】10.13272/j.issn.1671-251x.2019010059
【作者】孟祥豹1,2,王俊峰1,张延松1,2,刘博1
【Author】 MENG Xiangbao1,2,WANG Junfeng1,ZHANG Yansong1,2,LIU Bo1
【作者机构】1.山东科技大学 矿业与安全工程学院, 山东 青岛266590;2.山东科技大学 矿山灾害预防控制省部共建国家重点实验室培育基地,山东 青岛266590
【Unit】1.College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, China; 2.State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology,Shandong University of Science and Technology, Qingdao 266590, China
【摘要】针对干粉灭火剂会造成污染、清洗困难、可能造成设备损坏等问题,设计了一种可燃性粉尘环境用高压细水雾自动灭火系统。火焰传感器检测到可燃性粉尘燃烧火焰信号后,高压蓄能系统第一时间产生高压水并迅速形成高压细水雾,然后供水系统快速增压到工作压力,接替高压蓄能系统继续提供高压水并持续生成高压细水雾。测试结果表明,可燃性粉尘环境用高压细水雾自动灭火系统响应速度快,火焰传感器和控制器的平均响应时间分别为4 ms和12 ms;高压细水雾生成速度快,平均生成时间为96 ms,最长生成时间为100 ms;灭火及时有效,在高压细水雾作用于燃烧火焰1 s后,燃烧火焰基本被扑灭,燃烧火焰传播至距中心点火位置0.2 m左右停止了传播扩散,验证了该系统能够有效避免可燃性粉尘燃烧火焰的蔓延,防止可燃性粉尘火灾事故。
【Abstract】In view of problems that dry powder fire extinguishing agent will cause pollution, difficult cleaning and equipment damage, a high-pressure water mist automatic fire extinguishing system for flammable dust environment was designed. High-pressure energy storage system generates high-pressure water immediately and rapidly forms high-pressure water mist after flame sensor detects flame signal of flammable dust combustion, and then water supply system is quickly pressurized to working pressure, replaces high-pressure energy storage system to provide high-pressure water and continue to generate high-pressure water mist. The test results show that the high-pressure water mist automatic fire extinguishing system for flammable dust environment has fast response speed, average response time of flame sensor and controller is 4 ms and 12 ms respectively; high-pressure water mist generation is fast and average generation time is 96 ms, the longest generation time is 100 ms; the fire extinguishing is effective and timely, after the high-pressure water mist acts on combustion flame for 1 s, the combustion flame is basically extinguished, and the propagation and diffusion of combustion flame stops when propagates to about 0.2 m from the center ignition position. It is verified that the system can effectively avoid spread of flammable dust combustion flame and prevent flammable dust fire accidents.
【关键词】 自动灭火; 高压细水雾; 可燃性粉尘; 高压蓄能
【Keywords】automatic fire extinguishing; high pressure water mist; flammable dust; high pressure energy storage
【文献出处】工矿千亿国际app下载,2019年10期
【基金】“十三五”国家重点研发计划项目(2016YFC0801700,2017YFC0805200)
【分类号】TD753.2
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