本文主要研究内容
作者杨维国（2019）在《湿法烟气脱硫系统除雾器除雾性能的研究》一文中研究指出：湿法烟气脱硫是当前锅炉尾部烟气处理中应用最为广泛的技术,但湿法脱硫后的烟气中携带有大量含污染物的液体颗粒,为脱除这些液体颗粒,实际运行中在脱硫塔的顶端一般都设有叶片式除雾器。叶片式除雾器针对直径较大的液滴颗粒具有处理量大、分离效率高、压力损失小且不易堵塞等优点,针对除雾器的研究主要方法有实验研究以及数值模拟研究,其中实验研究因成本高、操作过程复杂等诸多因素限制,而不能广泛应用。本文利用数值模拟的方法,对折板型除雾器、折线型除雾器、普通波纹板除雾器、带钩波纹板除雾器四种板型的除雾器通道内的气液两相流场进行了模拟,计算出在不同工况条件下各除雾器的除雾效率以及压降损失,并根据结果分析了除雾器的除雾性能随各影响因素的变化规律及原因。研究结果表明,流体的初速度和液滴直径以及除雾器的板型、间距、叶片偏转角度对除雾器的性能具有重要的影响。随着流体初速度的升高,各除雾器的除雾效率与压力损失都随之而增大;流体中所含的液滴颗粒直径越大,除雾器的除雾效率也越高,而颗粒的大小对除雾器内的压力损失并无明显的影响;四种除雾器类型中带钩波纹板除雾器压降>折线型除雾器压降>折板型除雾器压降>普通波纹板除雾器,其中带钩波纹板除雾器的除雾效率远远高于其他三类板型的除雾器,而普通波纹板除雾器除雾效率最低;除雾器除雾效率随叶片间距的增大而降低,而除雾器内的压降损失也随之略有降低;叶片偏转角度对除雾器的效率与压降都有较大的影响,角度越小,效率越高,而压降越大;综合考虑四种除雾器中,带钩波纹板除雾器除雾性能最优。最后,本文根据带钩波纹板除雾器对15μm以下的液滴分离效果差的情况,提出在除雾器中添加挡板的理论设计,并利用模拟方法进行一定的优化,使得除雾器对10μm的液滴颗粒分离效率可达到90%以上,但结果表明压降也有较大的提高。本文的研究主要为除雾器的设计及优化提供一定的理论依据与数值参考,具有一定的指导意义。
Abstract
shi fa yan qi tuo liu shi dang qian guo lu wei bu yan qi chu li zhong ying yong zui wei an fan de ji shu ,dan shi fa tuo liu hou de yan qi zhong xie dai you da liang han wu ran wu de ye ti ke li ,wei tuo chu zhe xie ye ti ke li ,shi ji yun hang zhong zai tuo liu da de ding duan yi ban dou she you xie pian shi chu wu qi 。xie pian shi chu wu qi zhen dui zhi jing jiao da de ye di ke li ju you chu li liang da 、fen li xiao lv gao 、ya li sun shi xiao ju bu yi du sai deng you dian ,zhen dui chu wu qi de yan jiu zhu yao fang fa you shi yan yan jiu yi ji shu zhi mo ni yan jiu ,ji zhong shi yan yan jiu yin cheng ben gao 、cao zuo guo cheng fu za deng zhu duo yin su xian zhi ,er bu neng an fan ying yong 。ben wen li yong shu zhi mo ni de fang fa ,dui she ban xing chu wu qi 、she xian xing chu wu qi 、pu tong bo wen ban chu wu qi 、dai gou bo wen ban chu wu qi si chong ban xing de chu wu qi tong dao nei de qi ye liang xiang liu chang jin hang le mo ni ,ji suan chu zai bu tong gong kuang tiao jian xia ge chu wu qi de chu wu xiao lv yi ji ya jiang sun shi ,bing gen ju jie guo fen xi le chu wu qi de chu wu xing neng sui ge ying xiang yin su de bian hua gui lv ji yuan yin 。yan jiu jie guo biao ming ,liu ti de chu su du he ye di zhi jing yi ji chu wu qi de ban xing 、jian ju 、xie pian pian zhuai jiao du dui chu wu qi de xing neng ju you chong yao de ying xiang 。sui zhao liu ti chu su du de sheng gao ,ge chu wu qi de chu wu xiao lv yu ya li sun shi dou sui zhi er zeng da ;liu ti zhong suo han de ye di ke li zhi jing yue da ,chu wu qi de chu wu xiao lv ye yue gao ,er ke li de da xiao dui chu wu qi nei de ya li sun shi bing mo ming xian de ying xiang ;si chong chu wu qi lei xing zhong dai gou bo wen ban chu wu qi ya jiang >she xian xing chu wu qi ya jiang >she ban xing chu wu qi ya jiang >pu tong bo wen ban chu wu qi ,ji zhong dai gou bo wen ban chu wu qi de chu wu xiao lv yuan yuan gao yu ji ta san lei ban xing de chu wu qi ,er pu tong bo wen ban chu wu qi chu wu xiao lv zui di ;chu wu qi chu wu xiao lv sui xie pian jian ju de zeng da er jiang di ,er chu wu qi nei de ya jiang sun shi ye sui zhi lve you jiang di ;xie pian pian zhuai jiao du dui chu wu qi de xiao lv yu ya jiang dou you jiao da de ying xiang ,jiao du yue xiao ,xiao lv yue gao ,er ya jiang yue da ;zeng ge kao lv si chong chu wu qi zhong ,dai gou bo wen ban chu wu qi chu wu xing neng zui you 。zui hou ,ben wen gen ju dai gou bo wen ban chu wu qi dui 15μmyi xia de ye di fen li xiao guo cha de qing kuang ,di chu zai chu wu qi zhong tian jia dang ban de li lun she ji ,bing li yong mo ni fang fa jin hang yi ding de you hua ,shi de chu wu qi dui 10μmde ye di ke li fen li xiao lv ke da dao 90%yi shang ,dan jie guo biao ming ya jiang ye you jiao da de di gao 。ben wen de yan jiu zhu yao wei chu wu qi de she ji ji you hua di gong yi ding de li lun yi ju yu shu zhi can kao ,ju you yi ding de zhi dao yi yi 。
论文参考文献
论文详细介绍
论文作者分别是来自哈尔滨理工大学的杨维国，发表于刊物哈尔滨理工大学2019-07-29论文，是一篇关于除雾器论文,除雾效率论文,压降损失论文,数值模拟论文,两相流论文,哈尔滨理工大学2019-07-29论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自哈尔滨理工大学2019-07-29论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：除雾器论文; 除雾效率论文; 压降损失论文; 数值模拟论文; 两相流论文; 哈尔滨理工大学2019-07-29论文;