本文主要研究内容
作者江伟（2019）在《中进周出辐流式沉淀池的数值模拟研究》一文中研究指出：随着社会的快速发展,水污染问题越来越严重,污水处理构筑物的优化成为目前研究内容之一。中心进水周边出水的辐流式沉淀池对水体扰动较小,耐冲击能力强,在污水处理厂中应用较为广泛。由于目前设计手册和规范中对沉淀池的部分参数没有明确规定,仅凭经验取值无法使沉淀池在实际运行过程中的水力条件达到最优,因此有必要对沉淀池进行深入研究以获得最佳的参数取值。基于数值模拟方法,对中进周出辐流式沉淀池进行数值模拟,对沉淀池内部流场图进行分析,以悬浮物去除率为评价指标,研究挡板淹没深度、挡板距过水孔洞距离、集水槽距池边壁距离、集水槽宽度等参数对沉淀效果的影响。研究结果如下:(1)5000m~3/d规模沉淀池最佳挡板淹没深度与池中心高度之比为0.46,20000m~3/d规模沉淀池最佳挡板淹没深度与池中心高度之比为0.5,40000m~3/d规模沉淀池最佳挡板淹没深度与池中心高度之比为0.56,故辐流式沉淀池挡板淹没深度与池中心高度的最佳比值应在0.4~0.6之间。(2)5000m~3/d规模沉淀池最佳挡板距过水孔洞距离与池半径之比为0.071,20000m~3/d规模沉淀池最佳挡板距过水孔洞距离与池半径之比为0.074,40000m~3/d规模沉淀池最佳挡板距过水孔洞距离与池半径之比为0.079,故辐流式沉淀池挡板距过水孔洞距离与池半径的最佳比值应在0.07~0.08之间。(3)5000m~3/d规模沉淀池最佳集水槽距池边壁距离与池半径之比为0.24,20000m~3/d规模沉淀池最佳集水槽距池边壁距离与池半径之比为0.22,40000m~3/d规模沉淀池最佳集水槽距池边壁距离与池半径之比为0.25,故辐流式沉淀池集水槽距池边壁距离与池半径的最佳比值应在0.2~0.3之间。(4)5000m~3/d规模沉淀池最佳集水槽宽度与池半径之比为0.024,20000m~3/d规模沉淀池最佳集水槽宽度与池半径之比为0.022,40000m~3/d规模沉淀池最佳集水槽宽度与池半径之比为0.029,故辐流式沉淀池集水槽宽度与池半径的最佳比值应在0.02~0.03之间。模拟结果对辐流式沉淀池的实际工程设计具有一定参考意义。
Abstract
sui zhao she hui de kuai su fa zhan ,shui wu ran wen ti yue lai yue yan chong ,wu shui chu li gou zhu wu de you hua cheng wei mu qian yan jiu nei rong zhi yi 。zhong xin jin shui zhou bian chu shui de fu liu shi chen dian chi dui shui ti rao dong jiao xiao ,nai chong ji neng li jiang ,zai wu shui chu li an zhong ying yong jiao wei an fan 。you yu mu qian she ji shou ce he gui fan zhong dui chen dian chi de bu fen can shu mei you ming que gui ding ,jin ping jing yan qu zhi mo fa shi chen dian chi zai shi ji yun hang guo cheng zhong de shui li tiao jian da dao zui you ,yin ci you bi yao dui chen dian chi jin hang shen ru yan jiu yi huo de zui jia de can shu qu zhi 。ji yu shu zhi mo ni fang fa ,dui zhong jin zhou chu fu liu shi chen dian chi jin hang shu zhi mo ni ,dui chen dian chi nei bu liu chang tu jin hang fen xi ,yi xuan fu wu qu chu lv wei ping jia zhi biao ,yan jiu dang ban yan mei shen du 、dang ban ju guo shui kong dong ju li 、ji shui cao ju chi bian bi ju li 、ji shui cao kuan du deng can shu dui chen dian xiao guo de ying xiang 。yan jiu jie guo ru xia :(1)5000m~3/dgui mo chen dian chi zui jia dang ban yan mei shen du yu chi zhong xin gao du zhi bi wei 0.46,20000m~3/dgui mo chen dian chi zui jia dang ban yan mei shen du yu chi zhong xin gao du zhi bi wei 0.5,40000m~3/dgui mo chen dian chi zui jia dang ban yan mei shen du yu chi zhong xin gao du zhi bi wei 0.56,gu fu liu shi chen dian chi dang ban yan mei shen du yu chi zhong xin gao du de zui jia bi zhi ying zai 0.4~0.6zhi jian 。(2)5000m~3/dgui mo chen dian chi zui jia dang ban ju guo shui kong dong ju li yu chi ban jing zhi bi wei 0.071,20000m~3/dgui mo chen dian chi zui jia dang ban ju guo shui kong dong ju li yu chi ban jing zhi bi wei 0.074,40000m~3/dgui mo chen dian chi zui jia dang ban ju guo shui kong dong ju li yu chi ban jing zhi bi wei 0.079,gu fu liu shi chen dian chi dang ban ju guo shui kong dong ju li yu chi ban jing de zui jia bi zhi ying zai 0.07~0.08zhi jian 。(3)5000m~3/dgui mo chen dian chi zui jia ji shui cao ju chi bian bi ju li yu chi ban jing zhi bi wei 0.24,20000m~3/dgui mo chen dian chi zui jia ji shui cao ju chi bian bi ju li yu chi ban jing zhi bi wei 0.22,40000m~3/dgui mo chen dian chi zui jia ji shui cao ju chi bian bi ju li yu chi ban jing zhi bi wei 0.25,gu fu liu shi chen dian chi ji shui cao ju chi bian bi ju li yu chi ban jing de zui jia bi zhi ying zai 0.2~0.3zhi jian 。(4)5000m~3/dgui mo chen dian chi zui jia ji shui cao kuan du yu chi ban jing zhi bi wei 0.024,20000m~3/dgui mo chen dian chi zui jia ji shui cao kuan du yu chi ban jing zhi bi wei 0.022,40000m~3/dgui mo chen dian chi zui jia ji shui cao kuan du yu chi ban jing zhi bi wei 0.029,gu fu liu shi chen dian chi ji shui cao kuan du yu chi ban jing de zui jia bi zhi ying zai 0.02~0.03zhi jian 。mo ni jie guo dui fu liu shi chen dian chi de shi ji gong cheng she ji ju you yi ding can kao yi yi 。
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论文作者分别是来自合肥工业大学的江伟，发表于刊物合肥工业大学2019-10-22论文，是一篇关于辐流式沉淀池论文,流场论文,悬浮物去除率论文,数值模拟论文,合肥工业大学2019-10-22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，资料来自合肥工业大学2019-10-22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。
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