To accurately predict the relationship between temperature rise of chemical corridor pipelines and time under a jet fire environment, a chemical corridor in Shanghai is taken as the research object, and a model of chemical corridor pipeline is constructed with FDS software to study the thermodynamic response law of the petrochemical pipeline under the action of jet fire. The results show that the temperature rise rate of the petrochemical pipeline increases significantly with the increase of the jet caliber, and the heat radiation intensity generated by the jet fire increases first and then decreases with the increase of the horizontal distance from the nozzle. The wind speed and direction affect the cover of the jet fire, and then affect the temperature rise rate and peak temperature of the pipeline. Some variables were selected as the factors affecting the temperature rise of chemical pipe corridor, including jet fire duration, flame combustion heat, combustion efficiency, jet heat radiation intensity, distance between pipeline and leakage port, injection fire length, wind speed, pipeline operating temperature. And the failure time model of chemical pipe gallery in the jet fire accident was constructed by dimensionless analysis and processing, which realized the quantitative calculation of failure time and provided a theoretical reference for preventing the failure of pipe gallery pipeline caused by jet fire.

中文翻译：

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喷射火灾环境下化工管廊热力响应规律数值模拟

为了准确预测喷射火灾环境下化工走廊管道温升与时间的关系，以上海某化工走廊为研究对象，利用FDS软件构建化工走廊管道模型，研究其热力学响应规律射流火焰作用下的石化管道。结果表明:石化管道的温升速率随着射流口径的增大而显着增大,射流火焰产生的热辐射强度随着距喷嘴水平距离的增加先增大后减小。风速和风向影响喷射火的覆盖，进而影响管道的温升速率和峰值温度。选取喷射火持续时间、火焰燃烧热、燃烧效率、喷射热辐射强度、管道与泄漏口距离、喷射火长度、风速、管道运行温度等变量作为影响化工管廊温升的因素。 。并通过无量纲分析处理，构建了喷射火灾事故中化工管廊的失效时间模型，实现了失效时间的定量计算，为预防喷射火灾引起的管廊管道失效提供了理论参考。