1069 t/h大型循环流化床床温偏差原因分析与改造  

Cause Analysis and Reconstruction for the Temperature Deviation in 1069 t/h Large-Scale Domestic CFB Boiler

作　　者：苗俊明[1] 彭顺刚 谢昂均 和圣杰 徐钢[2] 

机构地区：[1]神华神东电力有限责任公司新疆米东热电厂,新疆乌鲁木齐830019 [2]华北电力大学国家火力发电工程技术研究中心,北京102206

出　　处：《电力科学与工程》2015年第5期46-52,共7页Electric Power Science and Engineering

基　　金：国家自然科学基金(51436006)

摘　　要：某热电厂锅炉在运行过程中,中部床温与左右两侧床温偏差达110℃,给运行人员优化调整带来困难。针对上述问题,该电厂开展了运行数据分析、风帽改造方案设计、改造效果分析等一系列工作。对该型锅炉中部区域的风帽进行适当节流,降低通过中部区域风帽的空气流量后,锅炉床温偏差普遍明显降低,基本将床温偏差降低至50℃以下,改造效果良好。The bed temperature deviation between the middle and both sides of the furnace reaches 110℃ in oper- ation, which added the operation difficulties of a thermal power plant. Focusing on the above problem, some re- searches had been carried out, such as the analysis of operating data, the design of hood reconstruction program and the effectiveness analysis of hood reconstruction, etc. Finally the throttling reconstruction of hoods was carried out to reduce the air flow through the central region of the furnace, the temperature deviation has been significantly improved, which dropped below 50℃ on the whole.

关 键 词：循环流化床锅炉 床温偏差 静压分布 风帽 

分 类 号：TK222[动力工程及工程热物理—动力机械及工程]