首页|超高层建筑压缩空气泡沫枪喷射特性研究

超高层建筑压缩空气泡沫枪喷射特性研究

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为完善超高层建筑压缩空气泡沫灭火系统关键性能参数和全面评价其灭火能力,采用泡沫混合液流量和气液比可调的压缩空气泡沫产生装置,测试了典型19 mm泡沫枪在不同条件下的喷射特性参数,分析了泡沫枪喷射特性与混合液流量、气液比等输入参数之间的量化关系.结果表明,当泡沫混合液流量一定时,泡沫枪压力与气液比基本呈线性递增关系,泡沫射程与气液比呈现正相关关系,发泡倍数随气液比先增大后减小;在气液比一定条件下,泡沫枪压力与混合液流量基本呈线性递增关系,泡沫射程与混合液流量呈现正相关关系,发泡倍数随混合液流量变化规律与气液比实际大小密切相关.
Study on discharge characteristics of compressed air foam nozzle in super high-rise buildings
To establish the key performance parameters and evalu-ate the fire extinguishing ability of compressed air foam fire extin-guishing system in super high-rise building,the compressed air foam generating devices with adjustable mixed liquid flow rate and gas-liquid ratio are used to test the discharge characteristics of typical 19 mm foam nozzle under different conditions.The quantitative relationships between discharge characteristics of foam nozzle and input parameters such as mixed linearly with the gas-liquid ratio were analyzed.The foam range has a positive cor-relation with the gas-liquid ratio,and the foam multiple increases first and then decreases with the increase of gas-liquid ratio.Un-der certain gas-liquid ratio,the foam nozzle pressure increases lin-early with the flow rate of mixed liquid,the foam range is posi-tively correlated with the flow rate of mixed liquid,and the varia-tion of the foam multiple with the flow rate of mixed liquid is closely related to the actual size of the gas-liquid ratio.

compressed air foamdischarge characteristicssuper high-rise buildingsfoam nozzlegas liquid ratiomixed liquid flow ratefoam range

陈涛、秦国杨、张鹏、王雨薇

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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

压缩空气泡沫 喷射特性 超高层建筑 泡沫枪 气液比 混合液流量 泡沫射程

国家重点研发计划国家重点研发计划天津市科技计划多元投入重点项目应急管理部天津消防研究所基科费项目应急管理部天津消防研究所基科费项目

2021YFC30017002021YFC300170422JCZDJC008802022SJ152022SJ13

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(1)
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