300 MW机组锅炉制粉系统优化改造与效果分析  

Optimization and Effect analysis of 300 MW Unit Boiler Pulverizing System

作　　者：刘袖 石战胜 马治安 李宗慧 刘兵兵 赵冰 Liu Xiu;Shi Zhansheng;Ma Zhian;Li Zonghui;Liu Bingbing;Zhao Bing(Huadian Electric Power Research Institute Co.,Ltd.,Hangzhou 310030,China;Sichuan Guang'an Power Co.,Ltd.,Guang'an 638017,China;Huadian Power International Corporation Ltd.,Tianjin Development Area Branch,Tianjin 300270,China)

机构地区：[1]华电电力科学研究院有限公司,浙江杭州310030 [2]四川广安发电有限责任公司,四川广安638017 [3]华电国际电力股份有限公司天津开发区分公司,天津300270

出　　处：《科学技术创新》2022年第31期174-177,共4页Scientific and Technological Innovation

基　　金：中国华电集团有限公司重点科技项目计划,项目编号CHDKJ21-01-18;中国华电集团有限公司重点科技项目计划,项目编号CHDKJ19-01-88。

摘　　要：针对某电厂300 MW供热机组制粉系统出力低、压降大、制粉单耗高、排粉风机磨损严重等问题,全面诊断制粉系统后发现粗细粉分离器性能仍有较大提升空间,通过数值计算后提出粗细粉分离器设计优化改造方案,实施后系统压降减小、制粉系统出力提高和单耗降低,锅炉效率获得提高。不仅节约燃煤、减少排放,而且排粉风机叶轮磨损显著减小、设备稳定性显著提高。Aiming at the problems of low output,large pressure drop,high unit consumption of pulverizing,and serious wear of the powder discharge fan in a 300 MW heating unit of a power plant,the performance of the coarse and fine powder separator is still greatly improved after a comprehensive diagnosis of the pulverizing system.After the numerical calculation,a design optimization and modification plan of the coarse and fine powder separator is proposed.After the implementation,the system pressure drop is reduced,the output of the pulverizing system is increased,and the unit consumption is reduced,and the boiler efficiency is improved.It not only saves coal and reduces emissions,but also significantly reduces the wear of the impeller of the powder exhaust fan and improves the stability of the equipment.

关 键 词：制粉系统 粗粉分离器 细粉分离器 改造 提效 

分 类 号：TK223.25[动力工程及工程热物理—动力机械及工程]