300MW机组循环流化床锅炉燃烧调整的试验研究  

TEST STUDY ON COMBUSTION ADJUSTMENT OF ONE CFB BOILER FOR 300 MW UNIT

作　　者：钟犁[1] 徐正泉[1] 曹幸卫 张力 邱忠 梁进林 周志培[1] 肖平[1] 

机构地区：[1]华能清洁能源技术研究院有限公司,北京100098 [2]新疆米东热电厂,新疆乌鲁木齐830019

出　　处：《热力发电》2012年第5期69-72,76,共5页Thermal Power Generation

摘　　要：针对新疆米东热电厂300MW机组循环流化床(CFB)锅炉床温高、炉内温度不均、稀相区灰浓度低等问题,从总风量、流化风、入炉煤粒度、上下二次风、床压、播煤风等方面进行了燃烧调整试验。结果表明,通过增加总风量和入炉煤粒度、调节一次风和二次风量的配比等措施,在不增加一次风的情况下,可使平均床温由调整前的940℃降至910～920℃,锅炉热效率达到92.15%,效果显著。Directing against the problems occurred on one CFB boiler of 300 MW unit in Midong Ther- mal Power Plant,such as high bed temperature,non - uniform temperature in the furnace,and low ash concentration in the dilute- phase zone etc. ,a combustion adjustment test has been carried out in as- pects of total air,fluidizing air,particle size of coal entering into the furnace,secondary air at upper and lower levels, bed pressure, and coal - spreading air etc.. Results show that the measures taken, inclu- ding increasing the particle size of coal entering into the furnace, increasing the total air,adjusting the proportioning ratio of primary and secondary air etc. , can make the average bed temperature to de- crease from 940 ℃ before adjustment to 910-920 ℃ ,and making the thermal efficiency of boiler to reach 92.15 %, boasting remarkable effectiveness.

关 键 词：300MW机组 CFB锅炉 燃烧调整 总风量 流化风 入炉煤粒度 上下二次风 床压 

分 类 号：TK229[动力工程及工程热物理—动力机械及工程]