生物质锅炉富氧燃烧性能评估及适应性分析  

Performance Evaluation and Adaptability Analysis of Oxygen-enriched Combustion in Biomass Boilers

作　　者：蒋晓锋 崇培安 朱晓磊 谷朋泰 刘向民 王海峰[2] JIANG Xiaofeng;CHONG Peian;ZHU Xiaolei;GU Pengtai;LIU Xiangmin;WANG Haifeng(Shanghai Power Equipment Research Institute Co.,Ltd.,Shanghai 200240,China;Jinan Boiler Group Co.,Ltd.,Jinan 250023,Shandong Province,China)

机构地区：[1]上海发电设备成套设计研究院有限责任公司,上海200240 [2]济南锅炉集团有限公司,山东济南250023

出　　处：《动力工程学报》2025年第3期366-373,共8页Journal of Chinese Society of Power Engineering

基　　金：国家电投上海发电设备成套设计研究院有限责任公司科研资助项目(202305156J)。

摘　　要：以130 t/h生物质炉排锅炉为对象,构建富氧燃烧热力计算方法,完成性能评估并进行适应性分析。结果表明:在含氧量为26.7%的配风条件下,过热器喷水量适宜,炉膛燃烧温度与空气工况相当,排烟温度低于除尘器允许工作温度;相比空气工况,富氧工况的锅炉效率提高0.7百分点,烟气量减小25%,高温腐蚀速率有加快的风险,磨损风险减小,积灰加剧,低温腐蚀风险不大,锅炉适应性良好,烟尘质量浓度增大33%,SO_(2)体积分数基本不变,NO_(x)体积分数降低,环保系统适应性良好;富氧工况的高浓度CO_(2)为低成本绿碳捕集创造了有利条件。Thermal calculation method was constructed to complete the performance evaluation and adaptability analysis of a 130 t/h oxygen-enriched biomass combustion grate boiler.Results show that under the air supply condition with 26.7%oxygen content,the superheater water spray rate is appropriate,the furnace combustion temperature is equivalent to the conventional air combustion condition,and the exhaust gas temperature is lower than the maximum allowable operating temperature of the dust collector.Under oxygen-enriched combustion conditions,the boiler efficiency increases by 0.7%,and the flue gas volume decreases by 25%compared with air conditions.The risk of high-temperature corrosion and ash accumulation increases,the wear risk decreases and the low temperature corrosion risk is small.The boiler shows good adaptability.The dust concentration in the flue gas increases by 33%,the SO_(2) volume fraction remains basically unchanged,the NO_(x) volume fraction decreases,and the environmental protection system demonstrates good adaptability.The high concentration of CO_(2) under oxygen-enriched combustion conditions creates favorable conditions for low-cost green carbon capture.

关 键 词：生物质锅炉 富氧燃烧 热力计算 性能评估 适应性 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]