静电感应法在线测量煤粉速度  

On-line Measurement of Pulverized Coal Velocity by Electrostatic Induction Method

作　　者：陈茗 胡边 李靖[1] CHEN Ming;HU Bian;LI Jing(Hunan Polytechnic of Water Resources and Electric Power,Changsha 410131,China;School of Energy Science and Engineering,Central South University,Changsha 410083,China;Wuling Power Co.,Ltd.,Changsha 410004,China)

机构地区：[1]湖南水利水电职业技术学院,湖南长沙410131 [2]中南大学能源科学与工程学院,湖南长沙410083 [3]五凌电力有限公司,湖南长沙410004

出　　处：《电工技术》2023年第2期58-59,64,共3页Electric Engineering

基　　金：湖南省高新技术产业科技创新引领计划(编号2020GK2094);长沙市重点研发计划(编号KH2201277);国家电投集团科技项目(编号2017-12-WLD-KJ-X)。

摘　　要：火力发电厂输煤管道中煤粉要以稳定、合适的速度运动,机组才能达到最佳的发电效率。为提高锅炉煤粉的燃烧效率,确保锅炉的经济安全运行,采用静电感应法对一次风输煤管道煤粉速度进行在线测量,相对偏差在3%以内,为各燃烧器的给粉均匀性提供指导,有利于降低污染物排放。The pulverized coal in the coal conveying pipeline of thermal power plant should move at a stable and appropriate speed,so that the unit can achieve the best power generation efficiency.In order to improve the pulverized coal combustion efficiency of the boiler and ensure the economic and safe operation of the boiler,the speed of pulverized coal in the primary wind coal pipeline was measured online by electrostatic induction method.The relative deviation of the test results is within 3%,which can provide guidance for the uniformity of powder feeding of each burner and help reduce pollutant emissions.

关 键 词：煤粉速度 静电感应法 在线测量 相关法测速 火电厂 

分 类 号：TH863[机械工程—仪器科学与技术] TK316[机械工程—精密仪器及机械]