古城镇建筑火灾门窗洞口热辐射特征研究

为探究古城镇建筑的火灾热辐射规律,有效防范火灾,为古城镇建筑消防改造提供参考,以某城中村古建筑为例,运用热辐射理论原理,分析了建筑火灾时门窗的正对位和非正对位的热辐射特征,总结出古城镇建筑火灾时洞口和外立面热辐射的一般规律:正对位辐射时,接收面辐射通量大小随建筑木制外立面门窗洞口的增大而增加,存在安全距离;非正对位辐射时,辐射规律较为复杂,非正对洞口位置处的热辐射通量受错开距离和间隔距离的双重影响。

Study on the Heat Radiation Characteristics of Fire Doors and Windows Openings in Ancient Cities and Towns

In order to explore the law of fire and heat radiation of buildings in ancient towns,effectively prevent fires,and provide references for the fire protection renovation of ancient towns,an ancient building in a village in a city is taken as an example,and the principle of thermal radiation theory is used to analyze the opposite and wrong sides of a building in fire.The opposite heat radiation characteristics summarize the general law of heat radiation from openings and facades of buildings in ancient cities and towns during fires:when facing radiation,the radiation flux of the receiving surface increases with the increase of the openings of the wooden facades of the building and there is a safe distance;when misaligned radiation,the radiation law is more complicated,and the heat radiation flux at the position of the non-aligned hole is affected by the double distance of the staggered distance and the separation distance.