渐变型多孔介质燃气装置的试验研究  

Experimental Research on a Porous Media Gas-Fired Boiler

作　　者：褚金华[1,2] 程乐鸣[1] 施正伦[1] 骆仲泱 岑可法[1] 

机构地区：[1]浙江大学能源清洁利用国家重点实验室,杭州310027 [2]深圳中广核工程设计有限公司,深圳518045

出　　处：《燃烧科学与技术》2009年第1期89-95,共7页Journal of Combustion Science and Technology

基　　金：国家高技术研究发展计划(863)资助项目(2006AA05Z223);教育部高等学校博士点基金资助项目(20070335138)

摘　　要：在一台0.8 t/h渐变型多孔介质燃气锅炉上进行了传热特性、污染物排放特性和阻力特性试验研究,结果表明,该多孔介质燃气炉具有体积小、负荷调节比大、换热效率高、污染物排放低和气流阻力小等特点.该燃气锅炉的特点是在燃烧室中设置有多孔介质与布置在其中的冷却介质管束,同样功率的多孔介质燃气炉体积只有常规自由火焰锅炉体积的1/5,换热效率大于90%,NOx排放质量浓度低于45 mg/m3,压降小于0.001 MPa.Experiments on combustion, heat transfer, emissions and pressure profiles were done in a 0.8 t/h porous media gas-fired boiler. Heat transfer tubes are immersed in gradually-varied porous media in the eombustor. Testing results shows that the boiler has advantages of compactness, higher heat transfer, lower NOx emission and lower pressure drop. Compared with a normal free-flame-fired boiler, the porous media boiler may reach the same power output, but it is only 1/5 the size of the former. Its heat transfer efficiency is higher than 90% , NOx emission is less than 45 mg/m^3 and pressure drop is less than 0.001 MPa.

关 键 词：多孔介质 燃气炉 燃烧 

分 类 号：TQ038.4[化学工程]