首页|自动喷水灭火系统失效工况试验研究

自动喷水灭火系统失效工况试验研究

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通过试验方式,获取3种模拟失效工况条件下自动喷水灭火系统的实际表现,分析比较系统设计工况条件下的预期控灭火效能,归纳不同失效工况对灭火效能的影响.试验结果表明:喷头溅水盘故障会造成洒水不均匀,使初期火势难以得到有效控制,导致喷头开启数量增加,有效控火效率降低约40%.热敏感元件故障导致喷头动作的感应温度更高、动作响应时间更长,延误启动时间内火势迅速发展,喷水稳定后短期内难以达到正常状态下的火灾防控水平,导致控火效率降低约25%.工作压力不足造成的影响最为严重,使得灭火效能降低约60%.
Simulation test research on failure condition of automatic sprinkler system
Through experimental methods,obtain the actual per-formance of automatic sprinkler fire extinguishing systems under three simulated failure conditions,analyze and compare the ex-pected fire extinguishing effectiveness under the system design conditions,and summarize the impact of different failure condi-tions on fire extinguishing effectiveness.The experimental results show:the sprinkler deflector failure will cause uneven water distri-bution and less effective control of early stage fire,so that the number of actuated sprinklers will increase to meet the fire control requirements,and the failure can result in about 40%reduction in fire extinguishing efficiency.The malfunction of the thermal sensi-tive element will lead to higher sprinkler operation temperature and longer response time,during which the fire develops too rap-idly to be effectively controlled in the short term after the sprin-kler actuation,and the malfunction can result in about 25%reduc-tion in fire extinguishing efficiency.Furthermore insufficient work-ing pressure will cause the most serious impact,which reduces the fire extinguishing efficiency by about 60%.

automatic sprinkler systemfailure conditionprotocol

田立伟、陈红光、刘连喜、李毅、刘欣

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应急管理部天津消防研究所,天津 300381

工业与公共建筑火灾防控技术应急管理部重点实验室,天津 300381

天津市消防安全技术重点实验室,天津 300381

自动喷水灭火系统 失效工况 试验方案

"十四五"国家重点研发计划课题天津市科技计划项目

2021YFC300170322JCYBJC01710

2024

消防科学与技术
中国消防协会

消防科学与技术

CSTPCD北大核心
影响因子:0.846
ISSN:1009-0029
年,卷(期):2024.43(2)
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