高效燃用生物质成型燃料新型炉膛的设计与研究

发布时间：2018-09-10 21:46

【摘要】：针对我国生物质锅炉燃烧效率低、积灰结渣严重的问题,设计了一种高效燃用生物质成型燃料的新型炉膛结构。为判断新型炉膛的运行水平,将该炉膛应用在额定蒸发量为1 t/h、额定蒸汽压力为1.25 MPa的蒸汽链条锅炉上,在8个不同过量空气系数(αpy)下,与传统炉膛进行燃烧效率、炉膛出口烟温、炉膛出口含氧量的对比试验研究。结果表明,在αpy=1.5时,新型炉膛的燃烧效率为97.04%,炉膛出口烟气温度为799℃,炉膛出口含氧量为5.2%,性能明显优于对比锅炉,证实设计的新型炉膛能实现生物质燃料稳定、持续、高效的燃烧。
[Abstract]:In order to solve the problems of low combustion efficiency and serious ash and slag deposition in biomass boilers in China, a new type of furnace structure was designed to burn biomass briquetting fuel efficiently. In order to judge the operation level of the new furnace, the furnace is applied to the steam chain boiler with rated evaporation capacity of 1 t / h and rated steam pressure of 1.25 MPa. Under the conditions of eight different excess air coefficients (伪 py), the combustion efficiency of the furnace is compared with that of the traditional furnace. Comparative experimental study on flue gas temperature and oxygen content at furnace outlet. The results show that when 伪 py= is 1.5, the combustion efficiency of the new furnace is 97.04, the flue gas temperature at the outlet of the furnace is 799 鈩，

本文编号：2235704