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为了揭示保温材料模塑聚苯乙烯泡沫板(EPS)和挤塑聚苯乙烯泡沫板(XPS)在不同放置角度以及不同压力和氧气浓度等环境条件下火蔓延特性规律,分别在高原地区的拉萨和平原地区的合肥对其进行了火蔓延实验.实验是在小尺寸火蔓延实验台中进行的.通过分析在水平放置时,保温材料在两地火蔓延过程中平均池火长度、火蔓延速度、平均火焰高度、预热区长度等特性参数的变化规律,定量地揭示了高原和平原环境对保温材料火蔓延特性参数的影响.重点分析了水平放置情况下,保温材料火蔓延过程中各参数的变化特点,得到在合肥地区测得的EPS和XPS的平均池火长度、火蔓延速度、平均火焰高度、预热区长度都高于在拉萨地区情况下.
In order to reveal the law of fire spread under different environmental conditions, such as polystyrene foam (EPS) and extruded polystyrene foam board (XPS), the LAVA And Hefei in the plains of Hefei carried out the fire spread experiment.The experiment was carried out in the small size fire spread experiment platform.Through the analysis of horizontal placement, the average length of pool fire, fire spread speed, The average flame height, the length of preheating zone and other characteristics of the parameters of the law, quantitatively revealed the plateau and plain environment on the fire spread characteristics of thermal insulation material parameters. Focusing on the case of horizontal placement, the thermal insulation material during the spread of the parameters The average pool fire length, fire spread rate, average flame height and preheating zone length of EPS and XPS measured in Hefei were higher than those in Lhasa.