基于微波法的飞灰含碳量在线测量装置设计方法  

Design Method of on-line Measuring Device for Carbon Content of Fly Ash Based on Microwave

作　　者：张抖 牛玉广[1] 陆瑶 徐兴明 吕春雷 周振华 ZHANG Dou;NIU Yu-guang;LU Yao;无(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University;Guodian Electric Power Dalian Zhuanghe PowerGeneration Co.,Ltd.)

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,北京102206 [2]国电电力大连庄河发电有限责任公司

出　　处：《电站系统工程》2022年第4期31-34,共4页Power System Engineering

基　　金：国家能源集团科技创新项目(GJNY-19-06-1)资助。

摘　　要：飞灰含碳量的测量对于电厂锅炉的燃烧情况监测具有重要意义。针对目前飞灰取样装置取灰速度慢、测量时效性差、管道结露、灰回路内壁挂灰结块等问题,设计了一套利用微波法在线测量飞灰含碳量的装置,在解决上述问题的基础上,能以较小的迟延反映出飞灰含碳情况。装置整套工作流程约耗时约7~9 min,测量误差可以保证在±0.35%以内。The measurement of carbon content in fly ash is of great significance to the combustion monitoring of power plant boilers. In view of the present sampling device which speed of sampling fly ash is slow, poor measurement timeliness, condensation pipe and serious agglomeration in the ash circuit, we designed a set of the online measurement of fly ash carbon content by using the microwave devices, on the basis of solving the above problems, the carbon content of fly ash can be reflected with a small delay. The entire working process of the device takes about 7-9 minutes, the measurement error can be guaranteed within ±0.35%.

关 键 词：飞灰含碳量 在线测量 装置改进 微波法 燃烧监测 

分 类 号：TM62[电气工程—电力系统及自动化]