基于重力热管技术的烟气余热利用浅析  

Analysis of Waste Heat of Flue Gas Utilization Base on Gravity Heat Pipe Technology

作　　者：郝晓冬[1] HAO Xiao - dong(Tianjin SDIC Jinneng Electric Power Co., Ltd. Tianjin 300480, Chin)

机构地区：[1]天津国投津能发电有限公司,天津300480

出　　处：《应用能源技术》2017年第6期27-29,共3页Applied Energy Technology

摘　　要：目前锅炉烟气的排烟温度一般在130~150℃左右。大量的热能直接排放进大气,不仅造成能源的巨大浪费,是影响锅炉经济性的主要因素。本文分析了固体吸附式制冷回收排烟余热直接进行集中供冷和采暖供热的技术,并针对某电厂工况进行了计算,可知该电厂年节约煤2.94×10~6kg(低位发热量为21 440 kJ/kg),直接经济利益213.15万元人民币。重力热管技术的烟气余热利用可以显著提高电厂能源的利用率并提高了机组热经济性。At present the letting smog temperature of the boiler is about 130-150 ℃.A lot of heat energy emissions into the atmosphere directly,that not only cause the huge waste of energy,but also is the main factors influencing the boiler efficiency. Through the analyses the heat pipe with semi-opened and self-adjustment and adsorption refrigeration with solid to recycle excess heat of the flue gas and to make cooling and heating directly. After calculating about some plant,It can save the coal 2. 94 × 10~6 kg（ the lower heating value of the coal is 21 440 kJ/kg）,and the economic interests is 2131. 5 thousand yuan. It reduces not only the exhaust temperature,but also significantly increases the thermal efficiency.

关 键 词：排烟余热 节能 半开式自调节重力热管 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程]