摘要
随着社会进步和农村经济的快速发展,解决农村供暖问题和改善农民居室的热舒适性迫在眉睫。尤其是北方寒冷地区和严寒地区,寻找一种农民现有经济条件能够承受的供暖方式尤为重要。火炕作为中国北方地区最普遍的供暖方式得到了广泛研究。本文通过对最新形式的火墙式火炕进行分析,发现了其存在排烟温度高、火炕内部烟气流动不均匀、炕墙中后端温度过低等缺点。针对上述缺点,提出了相应的改进措施,并通过实验对改进后的效果进行了检验。结果表明,改进后的火墙式火炕排烟温度可降低20～35℃,火炕内部烟气流动更加均匀,炕墙中后端温度得到了提升,均温提高了10～20℃,火炕的供热能力得到了大幅提高。
With the rapid development of society and rural economy,solving the rural heating problem and improving the indoor thermal comfortability have become the most important events in rural areas.Seeking a suitable heating mode which can be sustained by current economic conditions of peasants is very essential,especially for the cold and severe cold regions in the north of China.As the most important and common heating facilities in rural areas,the extensive research of Chinese Kang had been carried out.In this paper,through the analysis of a new type Kang namely hot-wall Kang,several problems which need to be improved had been discussed.For example,the exhaust flue gas temperature was too high,the flue gas flow was not uniform and the temperature of hot-wall＇s middle and backend was too low.Based on the analysis,the corresponding improvement strategies were presented and the experiments were carried out to validate the improvement effects.The results indicated that the exhaust flue gas temperature of hot-wall was decreased of 20 ～ 35 ℃,the flue gas flow inside of Kang was more uniform and the mean temperatures of hot-wall＇s middle and backend were increased about 10 ～ 20 ℃.With the improvement strategies,the hot-wall Kang＇s heating performance was enhanced.
出处
《建筑科学》
北大核心
2011年第2期26-32,共7页
Building Science
基金
"十一五"国家科技支撑计划项目"农村新能源开发与节能关键技术研究"课题五:村镇建筑节能及改善室内热环境关键技术研究(2006BAJ04B05-3)
