660MW机组掺烧低热值煤对机组带负荷能力的影响分析  

Analysis of effect of mixedly burning low heating value coal on carrying load capacity of 660MW unit

作　　者：张耿范 吴剑波 钱旭明 章荣顶 ZHANG Gengfan;WU Jianbo;QIAN Xuming;ZHANG Rongding(Zhejiang Zheneng Technology Research Institute Co.,Ltd.,Hangzhou 310003,China;Zhejiang Zheneng Energy Service Co.,Ltd.,Hangzhou 310003,China;Zhejiang Zheneng Yueqing Power Generation Co.,LTD.,Wenzhou 325604,China)

机构地区：[1]浙江浙能技术研究院有限公司,浙江杭州310003 [2]浙江浙能能源服务有限公司,浙江杭州310003 [3]浙江浙能乐清发电有限责任公司,浙江温州325604

出　　处：《能源工程》2023年第6期1-9,共9页Energy Engineering

摘　　要：为了评估掺烧低热值煤对燃煤火电机组带负荷能力的影响,在某电厂660MW机组进行了掺烧高灰低热值煤及高水低热值煤的试验,结果表明:燃用低热值煤种主要影响的是制粉系统和风烟系统的出力情况,其次影响的是输灰、出渣等系统的适配能力。掺烧热值20000kJ/kg的高灰煤时机组基本能带满负荷,掺烧热值为20000kJ/kg的高水煤及热值低于20000kJ/kg的高灰煤和高水煤时,机组带满负荷过程中会出现系统或设备出力受限的情况。In order to evaluate the influence of blending low calorific value coal on the capacity of coal-fired thermal power units to carry load,the test of blending high-ash low-calorific value coal and high-water low-calorific value coal was carried out in a 660MW unit of a power plant,and the results show that:burning low-calorific value coal mainly affects the output of the powder making system and the wind and smoke system,and secondly affects the adaptability of the systems such as the ash conveyor,slag discharge,etc.The unit can basically carry full load when blending high ash low calorific value coal and high-water coal with calorific value lower than 20000kJ/kg.When high ash coal with calorific value of 20000kJ/kg is burned,the unit can basically carry full load,and when high water coal with calorific value of 20,000kJ/kg,high ash coal with calorific value lower than 20000kJ/kg and high water coal are burned,the output of the unit will be limited in the process of carrying full load.

关 键 词：低热值煤 掺烧 带负荷能力 

分 类 号：TM621[电气工程—电力系统及自动化]