常用装饰装修板材的燃烧性能的实验研究

发布时间：2018-03-31 11:54

本文选题：板材　切入点：锥形量热仪　出处：《太原理工大学》2011年硕士论文

【摘要】：随着我国经济的不断发展,人们物质文化生活水平的不断提高,人们对生活、工作、娱乐的环境条件、要求也越来越高,追求高雅、美观、舒适、洁净的室内环境已成为一种社会潮流。大到商场、市场,小到宾馆、饭店、网吧、KTV、酒吧以及家庭住宅,几乎所有的建筑都要使用材料装修,而且越来越高档、豪华、气派。在室内装饰装修过程中,木质板材以其淳朴自然、纹理美观、吸音隔热等优点,在室内装修装潢和家具的制造过程中得到广泛的使用,这在一定程度上增大了室内的火灾荷载,对室内火灾的发生和发展起着重要的作用,给建筑物室内的防火安全埋下了火灾隐患。因此,研究常见室内装修板材的燃烧性能,对室内火灾的发生、发展、蔓延有着重要的意义,正确对常见装修板材的燃烧性能进行认识和评价,对评价某一建筑的火灾危险性和消防安全设计起着十分重要的作用。锥形量热仪作为中小尺寸实验,它与传统的实验方法如极限氧指数法、UL94(水平燃烧和垂直燃烧法)等相比,与真实火灾环境更为相似,它的实验数据与大型实体实验有很好的相关性,它以耗氧原理为理论基础,即可燃材料每消耗单位质量的氧,放出的热量都大致相同,约为13.1MJ。本文利用锥形量热仪,选取室内装饰装修过程中常用的实木板、多层板、高密度板、中密度板等6种板材进行实验,根据实验所测得的热释放速率、质量损失速率、引燃时间、生烟速率、CO/CO2产率等燃烧参数对选取的几种板材的燃烧性能进行了深入的分析研究,在相同热辐射强度下对比分析了几种板材的相对燃烧性能,然后又针对不同的热辐射强度对各燃烧参数的影响进行了实验。实验结果表明：在热辐射强度35 kW/m2下,根据实验所得燃烧参数对选取的几种板材的燃烧性能进行综合分析评价,发现实木板无论是热释放速率还是生烟速率、质量损失速率、CO产率,都要优于其他几种板材,火灾危险性较小；在不同热辐射强度下(25 kW/m2、35 kW/m2、50 kW/m2),分析了热释放速率、生烟速率、CO产率等随热辐射强度的变化情况,发现随着辐射强度的增大,板材的热释放速率、生烟速率、CO产率等都随着增大,且各曲线出现峰值的时间也随着辐射强度的增大而提前。此外在考察热辐射强度对引燃时间的影响时发现.引燃时间的均方根倒数与热辐射通量呈线性关系,得到线形拟合方程以及拟合度,拟合度均在0.97以上。
[Abstract]:With the continuous development of our economy and the constant improvement of people's material and cultural living standards, people have higher and higher demands on the environmental conditions of life, work and entertainment, pursuing elegance, beauty and comfort.Clean indoor environment has become a social trend.From shopping malls, markets, small hotels, restaurants, Internet cafes, bars and family homes, almost all buildings are decorated with materials, and increasingly upscale, luxurious, and stylish.In the process of interior decoration and decoration, wood panels are widely used in the process of interior decoration and furniture manufacturing, because of their simple nature, beautiful texture, sound absorption and heat insulation, which to a certain extent increase the indoor fire load.It plays an important role in the occurrence and development of indoor fire.Therefore, it is of great significance to study the combustion performance of common indoor decoration panels, which is of great significance to the occurrence, development and spread of indoor fire.It plays an important role in evaluating fire hazard and fire safety design of a certain building.The conical calorimeter, as a small and medium size experiment, is more similar to the real fire environment than the traditional experimental methods, such as the limit oxygen index method (UL94) and the horizontal and vertical combustion method.Its experimental data are well correlated with large scale solid experiments. It is based on the principle of oxygen consumption. The heat released by combustible materials per unit mass of oxygen is approximately the same as that of 13.1 MJ.Combustion parameters such as smoke generation rate, CO / CO _ 2 yield and so on, were used to analyze the combustion performance of selected plates, and the relative combustion properties of several plates were compared and analyzed under the same heat radiation intensity.Then the effects of different thermal radiation intensity on the combustion parameters were studied.The experimental results show that under the condition of 35 kW/m2 of thermal radiation intensity, the combustion performance of the selected plates is analyzed and evaluated comprehensively according to the combustion parameters obtained from the experiment, and it is found that the heat release rate and smoke generation rate of the solid plank are not only the heat release rate, but also the smoke generation rate.The CO yield of mass loss rate and CO is superior to that of other planks, and the fire risk is relatively low. Under different thermal radiation intensities, the variation of heat release rate, smoke generation rate and CO yield with thermal radiation intensity is analyzed, and the heat release rate and smoke rate are analyzed, and the thermal radiation intensity varies from 25 kW / m ~ (2) to 35 kW / m ~ (2) / m ~ (2) ~ (2) to 50 kW / m ~ (2) / m ~ (2).It is found that with the increase of radiation intensity, the thermal release rate, smoke generation rate and CO yield increase with the increase of radiation intensity, and the time of peak value of each curve is also advanced with the increase of radiation intensity.In addition, the influence of thermal radiation intensity on ignition time was investigated.The RMS reciprocal of ignition time is linearly related to the heat radiation flux. The linear fitting equation and the fitting degree are all above 0.97.
【学位授予单位】：太原理工大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TU564

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