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ID:857814
大小:5.29 MB
页数:36页
时间:2017-09-21
《新除尘器新型袋式脉冲控制仪的设计毕业论文》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、新型袋式除尘器脉冲控制仪的设计第一章工业除尘器的国内外应用现状······························31.1除尘器应用现状················································51.2脉冲控制仪的意义,流程,基本功能······························61.3新型脉冲反冲式袋式除尘器特点及应用前景························61.4袋式除尘器具有的优点····························
2、··············71.5袋式除尘器的应用··············································71.6袋式除尘器的清灰方式··········································71.7脉冲喷吹清灰方式··············································81.8袋式除尘器结构原理············································81.9脉冲喷吹式布袋除尘器的基
3、本组件································9第二章硬件构造··············································102.1系统原理······················································102.2硬件设计·······················································11第三章软件框图,编程思路·····························
4、·······133.1单片机的相关内容简介··········································133.2软件设计·······················································17第四章安装及调试··············································204.1安装方法·······················································204.2设置····
5、·······················································214.3运行方式选择···················································224.4调试过程中可能出现的问题·······································23第五章总结······················································23致谢·····················
6、··········································24参考文献···························································24摘要针对现在除尘器的诸多不足,在这里本文详细介绍了脉冲袋式除尘器的硬件结构、工作原理以及此系统的优点,还在硬件方面重点介绍了脉冲的发生与系统的稳定性的兼容设计,软件方面重点介绍了单片机的脉冲发生程序的设计。并给出了有关控制软件的流程图和功能图,阐述了脉冲喷吹控制仪的优点和编程方法,还有实际运行的诸多
7、问题。关键词:脉冲喷吹控制仪,除尘器,单片机,光耦,数码管,锁存器。第一章工业除尘器的国内外应用现状根据国家环保总局测算,我国环境问题所造成的损失约占国民生产总值的10%,污染问题已经十分严重,因此环保要求也日趋严格,国家已经对烟尘及SO2的排放提出更加严格的要求。一部分地方环保部门提出了更严格的要求,北京市烟尘和SO2的排放允许质量浓度严于很多先进国家标准,目前四电场静电除尘器改为五电场、六电场也很难满足上述要求。与此同时,SO2排放标准也相应提高。为减少排放,许多电厂将燃用低硫煤或采取相应的脱硫设施,从而导致
8、静电除尘器的除尘效率下降,尤其对于煤中硅、铝含量超过85%的电厂,采用静电除尘器处理的烟尘排放质量浓度已远远达不到环保要求。根据当前形势,静电除尘器改造为布袋除尘器已经势在必行。1.1除尘器应用现状除尘装置的选择以静电除尘器和布袋除尘器为主。20世纪70年代静电除尘器在国内就已经应用于火力发电厂,如吉林热电厂、保定发电厂。1974年福建邵武电厂在锅炉改造时首次采用国产双室
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