核电厂中临时可燃物的火灾影响区域研究

Study on the Fire Zone Influenced by Transient Combustibles in Nuclear Power Plant

核电厂中的临时可燃物种类多且可能出现的位置范围广,是核电厂中的重要起火源之一。本文介绍火灾影响区域的一般计算方法;针对核电厂的特点,提出适用于核电厂中临时可燃物火灾影响区域分析的热气层分析方法和除热气层外其他火灾影响区域的立方体模型;以电缆为火灾目标物,计算出在临时可燃物的不同热释放速率取值下火灾影响区域的立方体模型大小。

Many areas of nuclear power plant may have transient combustibles and the types of transient combustibles are various, so transient combustibles is one of the most important ignition sources. The generic calculation method of the fire zone of influence is introduced. Basing on the characteristics of nuclear power plant, a hot gas layer analysis method and a cubic zone model for the fire zone of influence except for the hot gas layer are proposed, which can be used to analyze the fire zone influenced by transient combustibles in nuclear power plant. Supposing the fire target is electrical cable, the dimension of cubic zone as a function of the heat release rate of transient combustibles is calculated.