飞灰辐射特性与表面温度关联的实验研究  

Experimental Research for Correlation Between Radiation Characteristic and Surface Temperature of Fly Ash

作　　者：朱润孺 王昕 袁野 张易阳[4] 李庚达 黄云[1] ZHU Runru;WANG Xin;YUAN Ye;ZHANG Yiyang;LI Gengda;HUANG Yun(State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;Guodian New Energy Technology Research Institute Co.,Ltd.,Beijing 102209,China;Huaneng Changjiang Environment&Technology Co.,Ltd.,Beijing 100031,China;Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China)

机构地区：[1]中国科学院过程工程研究所多相复杂系统国家重点实验室,北京100190 [2]国电新能源技术研究院有限公司,北京102209 [3]华能长江环保科技有限公司,北京100031 [4]清华大学核能与新能源技术研究院,北京100084

出　　处：《动力工程学报》2021年第8期645-649,共5页Journal of Chinese Society of Power Engineering

基　　金：国家重点研发计划资助项目(2018YFC1903000);国家能源集团科技创新资助项目(GJNY-18-27);江苏省科技成果转化专项资金资助项目(BA2020056)。

摘　　要：为降低燃煤、垃圾焚烧和生物质锅炉高温换热器传热管失效泄漏甚至爆管的风险,提出基于高温内窥镜光学测温方法的高温换热器表面积灰和温度状态监测系统。采用多元扩散Hencken燃烧器和细颗粒振荡给粉技术,开展了3种飞灰可见光段辐射特性与温度的关联规律研究。结果表明:由于3种飞灰理化性质不同,其辐射-温度关联曲线区别明显;光学频道选择不同也会显著影响结果的准确性,在实际应用前应进行系统的实验室标定,以获取更为精确的结果。In order to reduce the risk of the tube failure in coal/biomass/MSW fired power plants,a high temperature heat exchanger surface ash and temperature state monitoring system based on endoscopic optical temperature measurement method was proposed.A multi-diffusion Hencken burner and fine-particle oscillating powder feeding technology were used to study the relationship between the visible light radiation characteristics and temperature of three kinds of fly ash.Results show that the radiation-temperature correlation curves of the three kinds of fly ash are distinguished due to the different physical and chemical properties.Different selection of optical channels will also significantly affect the accuracy of the results,so laboratory calibration of the system should be carried out before practical application to obtain more accurate results.

关 键 词：“四管”爆破 积灰 辐射特性 光学监测 

分 类 号：TM621[电气工程—电力系统及自动化]