Experimental Study of Spirits Leakage Fire Suppression with Water Mist
Spirits leakage fire leads to huge hazard in spirits-making industry. This paper studied pool and spray spirits fire suppressions by water mist with experiments. Combustion properties of spirits under different volume concentrations were investigated, including both pool fire and spray fire. With volume concentration decreases from 95％ to 30％, the highest temperature reduction of pool fire is unconspicuous while flame height decreases obviously. With volume concentration decreases to 70％, steady spray flame can not be formed. Under the designed mist with mean diameter 0.35mm, leakage fires are all suppressed effectively. Time needed to extinguish pool fire is just about 1-2 s, while 5-8 s is needed to suppress spray fires. Flame enhancing exists after mist activation. Oxygen displacement and kinetic effects may act as the main mechanisms in flame extinguishing stage. Following the results summarized here, water mist would be a good choice for spirits production processes.
spirits leakage pool fire spray fire water mist
CHEN L(u)yi CAI Xin LU Jia WANG Deyong LIAO Guangxuan
State Key Laboratory of Fire Science,University of Science and Technology of China,Hefei 230026,Anhui,China
国际会议
The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)
北京
英文
774-778
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）