在美国Bull Run电厂900MW锅炉上风粉在线测量试验  

ON-LINE MEASUREMNT TEST OF AIR/FUEL FOR 900MW BOILER IN BULL RUN POWER PANT OF USA

作　　者：蔡小舒[1] 李俊峰[1] 欧阳新[1] 唐荣山[1] 

机构地区：[1]上海理工大学,上海200093

出　　处：《热力发电》2005年第5期24-26,共3页Thermal Power Generation

摘　　要：介绍了基于光脉动法的便携式煤粉在线监测仪在美国田纳西州BollRun电厂900MW锅炉上的试验情况。结果表明,不同煤粉管内的煤粉粒度会有很大的不同;受弯管的影响,煤粉粒度和浓度经过弯头后会产生分离现象,但流过一定长度后煤粉在管内截面上趋于均匀;在流动状况好的煤粉管中,煤粉浓度和粒度在截面上分布比较均匀。Activities of online monitoring test for primary air / fuel on 900 MW boiler by using portable online instrument based on light inpulse method for monitoring pulverised coal in Bull Run Power Plant, Tennessee State of USA, have been presented. The results show that the particle size of pulverized coal in different pipelines to be awfully different from each other; as affected by elbow bend pipe, separating phenominon of particle size and density of pulverized coal may be produced after passing through the said elbow bent pipe, but after flowing through a definite length of distance, coal dust on crosssection inside the pipeline tends to be uniformity; in pipelines of pulverized coal having good flowing status, the coaldust concentration and particle size have comparatively uniform distribution on the crosssection area, this measurement result also shows that the monitoring instrument of this kind can perfectly monitoring parameters of the primary air / fuel.

关 键 词：电站锅炉 煤粉 在线测量 光脉动法 煤粉浓度 

分 类 号：TK31[动力工程及工程热物理—热能工程]