高级搜索

Carrousel氧化沟的三维流场模拟与分析

,  ,  ,  , 

downloadPDF

上一篇

下一篇

梁延鹏, 芦晓燕, 刘杰, 孙晓杰, 魏建文. Carrousel氧化沟的三维流场模拟与分析[J]. 环境工程学报, 2013, 7(11): 4190-4194.
引用本文: 梁延鹏, 芦晓燕, 刘杰, 孙晓杰, 魏建文. Carrousel氧化沟的三维流场模拟与分析[J]. 环境工程学报, 2013, 7(11): 4190-4194.
shu
Liang Yanpeng, Lu Xiaoyan, Liu Jie, Sun Xiaojie, Wei Jianwen. Simulation and analysis on three-dimensional flow field of Carrousel oxidation ditch[J]. Chinese Journal of Environmental Engineering, 2013, 7(11): 4190-4194.
Citation: Liang Yanpeng, Lu Xiaoyan, Liu Jie, Sun Xiaojie, Wei Jianwen. Simulation and analysis on three-dimensional flow field of Carrousel oxidation ditch[J]. Chinese Journal of Environmental Engineering, 2013, 7(11): 4190-4194.
shu

Carrousel氧化沟的三维流场模拟与分析

  • 1.

    桂林理工大学广西矿冶与环境科学实验中心, 桂林 541004

  • 基金项目:

    国家"水体污染控制与治理"科技重大专项 (2008ZX07317-02-03-05)

    教育部科学技术研究重点项目(教技司[2010]114号,编号210170)

    广西高校优秀人才资助计划项目(桂教人[2010]65号)

    广西科学研究与技术开发计划项目(桂科攻0992008-3)

  • 中图分类号: X703

Simulation and analysis on three-dimensional flow field of Carrousel oxidation ditch

  • 1.

    Guangxi Scientific Experiment Center of Mining, Metallurgy and Environment, Guilin University of Technology, Guilin 541004, China

  • Fund Project:

  • 摘要: 利用CFD的Fluent软件,采用标准的三维K-ε紊流模型,对桂林市七里店污水处理厂1#氧化沟的流场进行了数值模拟,对导流墙和推进器附近的流速进行了计算分析。结果表明,氧化沟下层流速较低,局部区域流速低于0.2 m/s。为了防止污泥沉降,应进一步降低推进器位置。能量损失分析表明,卡罗塞氧化沟能量损失主要来源于沿程摩擦损失和局部损失。可通过增加墙体光滑度、降低入口高度以及增加导流墙的曲率半径等措施减少能量损失,改善现有氧化沟的水力特征。
    Abstract: Using the Fluent CFD software, the flow field of 1# oxidation ditch in Guilin Qilidian Sewage Treatment Plant was simulated by three dimensional K-ε turbulence mathematical model. The velocities in the vicinity of guide wall and propeller were calculated and analyzed. The results showed that the bottom velocity was lower than 0.2 m/s in partial area of the oxidation ditch. To avoid the sludge deposition, the propellers should be installed at lower positions. Energy consumption analysis indicated that the energy of Carrousel oxidation ditch was mainly consumed by friction along the way and local loss. Smoothing the wall, reducing the height of entrance and increasing curvature radius of guide wall could decrease the energy consumption, and thereby improve the hydraulic characteristics in the present oxidation ditch.
  • 加载中
  • [1] 刘艳臣,施汉昌,王志强,等. Carrousel氧化沟内DO变化规律及其优化控制条件.中国环境科学,2008, 28(9):843-846 Liu Yanchen,Shi Hanchang,Wang Zhiqiang,et al. Variation of dissolved oxygen and optimum control conditions in Carrousel oxidation ditch. China Environmental Science, 2008, 28(9):843-846(in Chinese)
    [2] 邓荣森,周新颖.氧化沟工艺的技术经济评估.中国给水排水,2007,23(16): 37-40 Deng Rongsen,Zhou Xinying.Technical and economic evaluation of oxidation ditch process.China Water & Wastewater,2007,23(16): 37-40(in Chinese)
    [3] 刘广立,种云霄,樊青娟,等. 氧化沟水力特性对处理效果和能耗的影响.环境科学,2006,27(11):2323-2326 Liu Guangli,Chong Yunxiao,Fan Qingjuan,et al. Hydrody-namic effects of the oxidation ditch on the removal efficiency and energy consumption. Environmental Science, 2006,27(11):2323-2326(in Chinese)
    [4] Hartley K. J. Controlling sludge settle ability in oxidation ditch process.Water Research,2008,42(6): 1459-1466
    [5] Hashimoto T.,Onda K.,Nakamura Y.,et al. Comparison of natural estrogen removal efficiency in the conventional activated sludge process and the oxidation ditch process.Water Research,2007,41(10): 2117-2126
    [6] Xia Shibin,Liu Junxin. An innovative integrated oxidation ditch with vertical circle for domestic wastewater treatment. Process Biochemistry,2004,39(9):1111-1117
    [7] 罗麟,李伟民,邓荣森,等.一体化氧化沟的三维流场模拟与分析.中国给水排水,2003,19(12): 15-18 Luo Lin, Li Weimin, Deng Rongsen,et al. Simulation and analysis on three-dimensional flow field of integrative oxidation ditch. China Water & Wastewater, 2003, 19(12): 15-18(in Chinese)
    [8] 张自杰,林荣忱,金儒霖.排水工程(下册, 第4版).北京:中国建筑工业出版社,2000
    [9] 赵星明,张庆华,黄廷林,等. 氧化沟弯道的污泥沉积分析与水力计算. 中国给水排水,2008,24(6):38-40 Zhao Xingming, Zhang Qinghua, Huang Tinglin, et al. Sludge deposition analysis and hydraulic calculation of oxidation ditch bend. China Water & Wastewater, 2008,24(6):38-40(in Chinese)
    [10] 陈志澜,杨人卫. 新型波纹板导流墙氧化沟水力特性的数值模拟. 环境工程,2010,28(2):33-35,44 Chen Zhilan, Yang Renwei. Numerical simulation of hydraulic characteristic of oxidation ditch with new corrugated plate guide wall. Environmental Engineering, 2010,28(2):33-35,44(in Chinese)
    [11] 张智,柴华,李柏林. A2O 氧化沟缺氧区三维流场模拟及结构形式优化. 环境工程学报,2012,6(1):46-50 Zang Zhi, Chai Hua,Li Bolin. Simutation on three-dimensional flow field and improvement on structure of anoxic zone of A2O oxidation ditch. Chinese Journal of Environmental Engineering, 2012,6(1):46-50(in Chinese)
    [12] 杨华展,王涛,邓荣森. 一体化氧化沟弯道流态特性研究. 重庆建筑大学学报,2007,29(3): 106-110 Yang Huazhan,Wang Tao,Deng Rongsen. Research on flow characteristic of curve channel of integrated oxidation ditch. Journal of Chongqing Jianzhu University, 2007,29(3): 106-110(in Chinese)
    [13] 赵星明,徐志伟. 氧化沟的水头损失计算与导流板偏置的作用. 中国给水排水,2000,16(7): 35-37 Zhao Xingming, Xu Zhiwei. Calculation on head loss and deflector biasing effect of the oxidation ditch. China Water & Wastewater, 2000,16(7):35-37(in Chinese)
    [14] 邓荣森,俞天明,王涛,等. 新型一体化氧化沟工艺的节能特点. 中国给水排水,2001,17(10): 44-46 Deng Rongsen, Yu Tianming, Wang Tao, et al. The character of energy saving in modified integrated oxidation ditch. China Water & Wastewater, 2001,17(10): 44-46(in Chinese)
    [15] 刘启龙,何建京.水下推动器对氧化沟流场特性影响的实验研究. 环境科学与技术,2012,35(11):93-98 Liu Qilong, He Jianjing. Submerged propeller's influence on oxidation ditch flow characteristics. Environmental Science & Technology,2012,35(11):93-98(in Chinese)
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2034
  • HTML全文浏览数:  1514
  • PDF下载数:  1054
  • 施引文献:  0
出版历程
  • 收稿日期:  2013-05-07
  • 刊出日期:  2013-11-21
梁延鹏, 芦晓燕, 刘杰, 孙晓杰, 魏建文. Carrousel氧化沟的三维流场模拟与分析[J]. 环境工程学报, 2013, 7(11): 4190-4194.
引用本文: 梁延鹏, 芦晓燕, 刘杰, 孙晓杰, 魏建文. Carrousel氧化沟的三维流场模拟与分析[J]. 环境工程学报, 2013, 7(11): 4190-4194.
shu
Liang Yanpeng, Lu Xiaoyan, Liu Jie, Sun Xiaojie, Wei Jianwen. Simulation and analysis on three-dimensional flow field of Carrousel oxidation ditch[J]. Chinese Journal of Environmental Engineering, 2013, 7(11): 4190-4194.
Citation: Liang Yanpeng, Lu Xiaoyan, Liu Jie, Sun Xiaojie, Wei Jianwen. Simulation and analysis on three-dimensional flow field of Carrousel oxidation ditch[J]. Chinese Journal of Environmental Engineering, 2013, 7(11): 4190-4194.
shu

Carrousel氧化沟的三维流场模拟与分析

  • 1. 桂林理工大学广西矿冶与环境科学实验中心, 桂林 541004
  • 收稿日期:  2013-05-07
基金项目:

国家"水体污染控制与治理"科技重大专项 (2008ZX07317-02-03-05)

教育部科学技术研究重点项目(教技司[2010]114号,编号210170)

广西高校优秀人才资助计划项目(桂教人[2010]65号)

广西科学研究与技术开发计划项目(桂科攻0992008-3)

摘要: 利用CFD的Fluent软件,采用标准的三维K-ε紊流模型,对桂林市七里店污水处理厂1#氧化沟的流场进行了数值模拟,对导流墙和推进器附近的流速进行了计算分析。结果表明,氧化沟下层流速较低,局部区域流速低于0.2 m/s。为了防止污泥沉降,应进一步降低推进器位置。能量损失分析表明,卡罗塞氧化沟能量损失主要来源于沿程摩擦损失和局部损失。可通过增加墙体光滑度、降低入口高度以及增加导流墙的曲率半径等措施减少能量损失,改善现有氧化沟的水力特征。

English Abstract

    全文HTML

参考文献 (15)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心