池火灾环境下喷涂涂料液化石油气储罐热响应机理试验研究
Experimental Study on Thermal Response Mechanism of Spraying Coated Liquefied Petroleum Gas Storage Tank under Pool Fire Environments
张伟 1孙毅萌 2杨大峰 3许宁宁1
作者信息
- 1. 河南科技大学土木建筑学院,河南洛阳 471023
- 2. 河南科技大学土木建筑学院,河南洛阳 471023;洛阳理工学院土木工程学院,河南洛阳 471023
- 3. 洛阳理工学院土木工程学院,河南洛阳 471023
- 折叠
摘要
以无机水性非膨胀型防火涂料为研究对象、以涂层厚度为主要影响因素,进行了池火灾环境下的液化石油气罐热响应试验,研究了喷涂防火涂料后池火灾环境中储罐的壁温响应、毁坏时间和失效模式.结果表明:无机水性非膨胀型防火涂层对于迟滞储罐在火灾作用下发生爆炸的时间效果显著.对于民用液化石油气储罐,充装水平相同时,涂层厚度2 cm的储罐在池火灾环境下的持续时间是裸罐的6.91倍,涂层厚度3 cm的储罐持续时间是涂层厚度2 cm储罐的1.20倍,涂层厚度4 cm的储罐持续时间是涂层厚度3 cm储罐的1.05倍.增加涂层厚度对迟滞储罐在池火灾环境下毁坏时间的效果逐渐降低,因此,建议储罐涂层厚度以3 cm为宜.研究结果对池火灾环境下储罐的安全防护应用和防火涂料研究具有一定的意义.
Abstract
The inorganic water-based non-expanding fireproof coating was taked as the research object,and the coating thickness as the main influencing factor,the thermal response tests of liquefied pertoleum gas tanks were conducted in a pool fire environment.The wall temperature response,damage time,and failure mode of storage tanks after spray fireproof coatings were studied in pool fire environments.The results show that the inorganic water-based non-expansion fireproof coatings have a significant delayed effect on the explosion time of storage tanks under fire action.For civilian liquefied petroleum gas storage tanks,when the filling level is the same,the tank which coating thickness is 2 cm is 6.91 times that of bare tanks in a pool fire environment,the tank which coating thickness is 3 cm is 1.20 times that of the tank which coating thickness is 2 cm,and the tank which coating thickness is 4 cm is 1.05 times that of the tank which coating thickness is 3 cm.The delayed effect of increasing coating thickness on the damage time of storage tanks in a pool fire environment gradually decreases,so it is suggest that to the coating thickness of 3 cm is suitable for storage tank.The research results have certain significance for the safety protection application of storage tanks in a pool fire environment and the study of fireproof coating.
关键词
池火灾/储罐/防火涂料/热响应分析/动态失效Key words
pool fire/storage tank/fireproof coating/heat response analysis/dynamic failure引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据