600MW机组磨煤机技术改造及性能试验研究

发布时间：2018-01-19 20:07

本文关键词： 磨煤机 ZGM113G 改造性能试验效益　出处：《华北电力大学》2014年硕士论文　论文类型：学位论文

【摘要】：内蒙古×××发电公司2×600MW亚临界直接空冷机组司配备的ZGM113G型中速磨煤机为早期引进国外技术的基础上自行开发出的磨煤机系列产品,本文首先分析了ZGM113G型中速磨煤机的结构和工作特性,发现该类型磨煤机在实际运行中存在一些技术缺陷,较大的影响了锅炉机组的安全、稳定、经济运行。然后分析与研究了ZGM113G型中速磨煤机在实际运行中体现出的问题,并结合该类型磨煤机实际情况,深度改造了ZGM113G型中速磨煤机的喷嘴环、加载方式、传动毂密封结构等,最后通过现场试验对改造后的磨煤机性能进行了测试。现场试验结果证明,实施技术改造方案不仅能解决ZGM113G型中速磨煤机存在的部分问题,还能够使得制粉系统和整个锅炉机组运行的安全稳定经济性得到提高,还具有较高的经济效益以及环保效益。
[Abstract]:The ZGM113G type medium speed coal mill equipped by the 2 脳 600MW subcritical direct air cooling unit of Inner Mongolia 脳脳脳 power generation company is a series of coal mill products developed by itself on the basis of the introduction of foreign technology in the early stage. This paper first analyzes the structure and working characteristics of ZGM113G type medium speed coal mill, and finds that there are some technical defects in the actual operation of this type of mill, which greatly affects the safety and stability of boiler unit. Economic operation. Then the paper analyzes and studies the problems of ZGM113G type medium speed coal mill in actual operation, and combines the actual situation of this type of coal mill. The nozzle ring, loading mode and sealing structure of transmission hub of ZGM113G type medium speed coal mill were deeply modified. Finally, the performance of the modified coal mill was tested by field test. The implementation of the technical transformation scheme can not only solve some problems existing in ZGM113G type medium-speed coal mill, but also improve the safety and stability economy of the pulverizing system and the whole boiler unit. It also has high economic benefit and environmental protection benefit.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM621

【参考文献】