HU Dianru, ZHANG Bo, WEN Jun. STUDY ON SCHEME OF PREVENTING A 200T/H COALFIRING BOILER FROM SLAGGING PROBLEMS[J]. Thermal power generation, 2004, (10): 37-40.
HU Dianru, ZHANG Bo, WEN Jun. STUDY ON SCHEME OF PREVENTING A 200T/H COALFIRING BOILER FROM SLAGGING PROBLEMS[J]. Thermal power generation, 2004, (10): 37-40. DOI: 10.19666/j.rlfd.2004.10.011.
一台220t/h燃煤锅炉防结渣方案研究
摘要
对某电厂 2 2 0t/h锅炉防止水冷壁结渣的改造方案进行了炉内燃烧三维数值计算
根据计算结果对比分析了改造前后炉膛内的流动燃烧传热状况
认为改造方案切圆大小适中
气流组织合理
火焰中心始终保持在炉膛中心
有利于防止锅炉结渣和高温腐蚀
Abstract
Three dimensional numerical calculation of combustion in the furnace has been carried out for retrofitting scheme of preventing waterwall of a 200 t/h boiler from slagging in one power plant. Based on results of calculation
the flow combustion and heat transfr state in the furnace before and after retrofitting have been compared and analysed. It is considered in the scheme that the size of tangential circle to be moderate
the organization of air flow to be reasonable
the flame centre to be kept in the centre of furnace from begining to end
being beneficial for preventing the boiler from slagging and hightemperature corrosion.