制冷技术2025，Vol.45Issue(2)：30-35,6.DOI:10.3969/j.issn.2095-4468.2025.02.105
重力喷洒系统内水系灭火剂排放特性模拟研究
Simulation Study on Water Extinguishing Agent Discharge Characteristics in Gravity Spraying System
摘要
Abstract
In order to improve the fire-fighting efficiency of fire-fighting aircraft,the discharge characteristics of water extinguishing agent by establishing a working medium discharge model of gravity spraying system is simulated,the influence of the type of working medium and the size of water tank on the discharge process is analyzed.The results showed that the discharge rate in 6 s is 9%slower than that of water when the polymer gel extinguishing agent is used instead of water as the working medium,which meets the emission requirements in actual application scenarios.However,the commonly used shrinkage criteria are no longer applicable to the discharge process of water tanks of different sizes,so the shrinkage criteria applicable to the gravity spraying system are established,and the shrinkage test platform is built to verify the emission model.The results show that the most suitable shrinkage criteria number for the gravity spraying system is Froude number.关键词
重力喷洒系统/水系灭火剂/排放特性/缩比准则Key words
Gravity spraying system/Water extinguishing agent/Emission characteristics/Scaling criterion分类
土木建筑引用本文复制引用
黄天骢,李旋,惠尧,孙浩然,吴成云,马岩,孙静楠,胡海涛..重力喷洒系统内水系灭火剂排放特性模拟研究[J].制冷技术,2025,45(2):30-35,6.基金项目
国家自然科学基金(No.52476013),上海市启明星项目扬帆专项(No.22YF1459700),上海市自然科学基金(No.23ZR1478900). （No.52476013）
