两种生物质燃料锅炉能效测试对比分析  

Analysis on Thermal Efficiency Test for Kinds of Biomass Fuel Boiler

作　　者：何凯龙 廖志雄 刘森祥 

机构地区：[1]广东省特种设备检测研究院云浮检测院,广东云浮

出　　处：《自然科学》2017年第3期306-314,共9页Open Journal of Nature Science

基　　金：云浮市锅炉能效检测与评价公共(技术)服务示范平台,基金项目号:2015A040404019。

摘　　要：分别对型号为DZL4-1.25-BMF以及DZG4-1.25-BMF的生物质颗粒锅炉进行能效测试,并对其进行正反平衡测试的结果进行分析。测试结果表示型号为DZL4-1.25-BMF的链条炉锅炉热效率(78.75%)相比型号为DZG4-1.25-BMF的固定炉排锅炉(70.10%)具有更高的热效率。在燃烧参数分析下发现,固定炉排锅炉在燃烧中存在排烟中一氧化碳含量过高,氧气量供应不足的情况;而链条炉排在燃烧过程中虽然有过量空气系数过高的情况出现,但相比固定炉排锅炉,改善了燃烧状况,降低了气体未完全燃烧损失。就型号为DZL4-1.25-BMF的锅炉能效测试数据情况而言,建议在运行过程中适当调节鼓引风量,降低过量空气系数,减少排烟损失,有利于提高锅炉热效率。Thermal efficiencies of Biomass fuel boilers of model DZG4-1.25-BMF and model DZL4-1.25-BMF were tested, respectively. Both of the thermal efficiencies were analyzed by methods of positive balance and counter balance. It was resulted that thermal efficiency of model DZL4-1.25-BMF (78.75%) was higher than the model DZG4-1.25-BMF (70.10%). According to the experimental data, an overhigh content of carbon monoxide in the exhaust gas was found in the model DZG4-1.25-BMF as shortage of oxygen occurred in the flame. But lower gas incomplete combustion loss was found in model DZL4-1.25-BMF though it performed a higher excess air factor during the test. It is suggested that it needs methods to decrease the excess air factor in order to increase the thermal efficiency of model DZL4-1.25-BMF.

关 键 词：生物质燃料锅炉 热效率 一氧化碳含量 过量空气系数 

分 类 号：TK2[动力工程及工程热物理—动力机械及工程]