华电技术 ›› 2015, Vol. 37 ›› Issue (10): 17-18.

• 技术交流 • 上一篇    下一篇

制粉系统掺冷风治理技术在330MW燃煤锅炉的应用

  

  1. 1.国电蓬莱发电有限公司,山东 蓬莱 265600;2.山东英电节能科技有限公司,济南 250101;3.山东泓奥电力科技有限公司, 济南 250101
  • 出版日期:2015-10-25

Application for the mixing cols blast air technology of coal pulverizing systemin 330 MW coal fired boiler

  1. 1.Guodian Penglai Electric Power Company Limited,Penglai 265600,China;2.Shandong Yingdian Energy Saving Technology Company Limited,Jinan 250101,China;3.Shandong Hongao Power Technology Company Limited,Jinan 250101,China
  • Published:2015-10-25

摘要:

摘要:某电厂330MW锅炉排烟温度较设计温度偏高很多,为降低排烟温度,提出了采用制粉系统掺冷风治理技术进行改造的措施。介绍了该技术的原理并将该技术与低压省煤器技术进行对比,指出该技术具有积灰及磨损轻微、投资小、回收热量品质高等特点,提出了改造后机组调试及投运过程中应注意的问题。改造后,锅炉排烟温度降低 10 ~ 15℃,节能效果显著。

关键词: 关键词: 制粉系统, 掺冷风, 排烟温度, 节能

Abstract:

Abstract:A certain power plant’s exhaust gas temperature of 330 MW boiler is much higher than designed.To lower the temperature,this paper brings up a retrofit scheme through mixing cold blast air technology of coal pulverizing system.This paper first introduces the principle of this technology and comparatively analyses it against low pressure economizer technology,then depicts the characteristics of mixing cold blast air technology,which are light wear,low investment,high quality of heat reclaims,etc.Matters that need attention are also discussed in the end if putting into operation.The exhaust gas temperature dropped 10~15℃ after transformation,which can be considered as remarkable effect of energy saving.

Key words: ">Keywords:">pulverizing system">;">mixing cold ">blast air">;">exhaust gas temperature">;">energy saving