静电传感技术在燃煤电站煤粉测量中的应用  

Application of Electrostatic Sensing Technique in Coal Powder Measurement in Power Station

作　　者：许传龙[1] 宋志英 王式民[1] 张建勇 

机构地区：[1]东南大学洁净煤发电与燃烧技术教育部重点实验室,江苏南京210096 [2]广东省特种设备检测院佛山分院,广东佛山528000 [3]蒂塞德大学,英国米德尔斯布勒

出　　处：《锅炉技术》2008年第1期32-37,共6页Boiler Technology

基　　金：国家重点基础研究专项经费资助(2004CB1770204);东南大学人才引进科研启动基金(4003001010)

摘　　要：燃煤电站制粉系统各燃烧器实现煤粉流量均衡分配以及风粉最佳配比,对于锅炉的安全、稳定与经济运行具有重要意义。介绍了近些年来发展起来的静电传感技术的基本测量原理、传感器探头结构及静电传感技术在煤粉浓度、速度、流量和煤粉均衡控制中的应用,最后对静电传感技术的应用前景和发展趋势做了展望。It is of importance to balance the coal flow rate and optimize coal-air ratio of burners for the safety, stability and economic operation of the coal-fired boiler in power station. In this paper, a novel electrostatic sensing technique for monitoring coal particle concentration and velocity to the different burners of boiler is introduced. And the fundamental measurement principle of the technique, the structure of electrostatic sensor and its application in primary air-coal measurement and balance control in power station were described detailedly. Finally, the application prospects and development trends of electrostatic sensing technique are proposed.

关 键 词：静电传感技术 风粉比 燃煤电站 制粉系统 优化燃烧 

分 类 号：TK227.1[动力工程及工程热物理—动力机械及工程]