一种低温烟气余热发电系统优化设计研究
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摘要
获取最大发电净功率是低温烟气余热发电系统的主要设计目标之一。建立一个以低温烟气为热源的宏观余热发电模型,研究得出影响系统净输出功率的两个主要因素,即余热回收量和余热锅炉排烟温度,其中,余热回收量对系统优化很关键。模型利用一典型烧结环冷机烟气余热发电系统的运行数据进行了验证。
To obtain maximum net power generation is one of the main design aims of low-temperature flue gas waste-heat power generation system. Establishing a macroscopic waste-heat generation model with low-temperature flue gas as heat source, the study showed that two main factors affecting the net output power of the system, namely waste heat recovery and exhaust flue gas temperature of waste heat boiler, of which waste heat recovery was key to system optimization. The model was verified using the operating data of flue gas waste-heat generation system of a typical sintering circular-cooler.
To obtain maximum net power generation is one of the main design aims of low-temperature flue gas waste-heat power generation system. Establishing a macroscopic waste-heat generation model with low-temperature flue gas as heat source, the study showed that two main factors affecting the net output power of the system, namely waste heat recovery and exhaust flue gas temperature of waste heat boiler, of which waste heat recovery was key to system optimization. The model was verified using the operating data of flue gas waste-heat generation system of a typical sintering circular-cooler.
引文
[1]张文芳.烟气余热利用过程的建模与控制[D].北京:华北电力大学,2012.
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[8]高杨,沈永兵,刘建虎.烧结环冷机烟气余热特性研究[J].冶金能源,2015,34(2):57-60.
[2]赵斌,徐鸿,路晓雯,等.烧结余热发电系统的热力学分析和系统优化[J].华北电力大学学报,2010,37(3):43-48.
[3]张邓杰,王江峰,王家全,等.水泥窑余热发电技术的分析及优化[J].动力工程,2009,29(9):885-890.
[4]李志伟,张波,何红舟,等.1 200 t/d玻璃窑余热发电系统运行参数选型[J].电站系统工程,2013,29(3):79-81.
[5]刘三军,苏震,张卫亮,等.安钢烧结环冷机余热发电技术[J].冶金能源,2009,28(6):40-43.
[6]张欣,温治,楼国锋,等.高温烧结矿气-固换热过程数值模拟及参数分析[J].北京科技大学学报,2011,33(3):339-345.
[7]陈春霞.钢铁生产过程余热资源的回收与利用[D].沈阳:东北大学,2008.
[8]高杨,沈永兵,刘建虎.烧结环冷机烟气余热特性研究[J].冶金能源,2015,34(2):57-60.