摘要
采用多孔陶瓷作为载体承载冷却剂碳酸氢钠和碳酸氢钾,以此组成冷却过滤层。并通过实验对冷却过滤层进行研究。利用热像仪表征灭火器装置的出口温度。分析了冷却物质的降温效能,并介绍了过滤层蓄热过程的传热数学模型。结果显示,这种方法可以很好地降低气溶胶灭火剂的出口温度;相同体积的冷却过滤层,采用碳酸氢钾作为冷却剂的降温效果要明显好于碳酸氢钠。
The cooling and filter layer was constituted by porous ceramics with coolants sodium bicarbonate and potassium bicarbonate,and was studied by experiment.Infrared thermography was used to characterize the temperature at the outlet of the aerosol fire extinguishing apparatus.The cooling performance of the coolant was analyzed,and the heat transfer model of the regenerative process was introduced.The results showed that the method can goodly decrease the temperature of aerosol;potassium bicarbonate shows a better cooling effect than sodium bicarbonate.
出处
《消防科学与技术》
CAS
北大核心
2013年第6期652-655,共4页
Fire Science and Technology
基金
国家自然科学基金项目(51076066)
关键词
气溶胶
气溶胶灭火剂
出口温度
冷却过滤层
多孔陶瓷
aerosol
aerosol fire extinguishing agent
outlet temperature
cooling filter layer
porous ceramics