[1]李洋洋,彭文峰,雷琳慧,等.基于CFD的地下污水厂无风管式通风系统效果模拟[J].中国给水排水,2024,40(17):104-110.
　LIYang-yang,PENGWen-feng,LEILin-hui,et al.Simulation Effect of Ductless Ventilation System in Underground Wastewater Treatment Plants Based on CFD[J].China Water & Wastewater,2024,40(17):104-110.
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基于CFD的地下污水厂无风管式通风系统效果模拟

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第17期 页码: 104-110 栏目: 出版日期: 2024-09-01
Title:
Simulation Effect of Ductless Ventilation System in Underground Wastewater Treatment Plants Based on CFD
作者:
李洋洋1， 彭文峰2， 雷琳慧3， 蔡磊3， 王宗平3， 万承君3
（1.中交城乡建设规划设计研究院有限公司，湖北 武汉 430056；2.中交第二公路勘察设计研究院有限公司，湖北 武汉 430056；3.华中科技大学 环境科学与工程学院，湖北 武汉 430074）
Author(s):
LI　Yang-yang1， PENG　Wen-feng2， LEI　Lin-hui3， CAI　Lei3， WANG　Zong-ping3， WAN　Cheng-jun3
（1. CCCC Urban-Rural Construction Planning Consultants Co. Ltd.， Wuhan 430056， China； 2. CCCC Second Highway Consultants Co. Ltd.， Wuhan 430056， China； 3. School of EnvironmentalScience & Engineering， Huazhong University of Science & Technology， Wuhan 430074， China）
关键词:
地下污水处理厂;  无风管式通风系统;  活塞流;  计算流体力学（CFD）
Keywords:
underground wastewater treatment plant;  ductless ventilation system;  piston flow;  computational fluid dynamics (CFD)
摘要:
地下污水厂传统风管式通风系统结构复杂、风管占用空间大，无风管式通风系统作为一种新型通风方式，可以减少风管建设，降低箱体埋深，具有广阔的应用空间。以河北某地下污水厂作为研究对象，通过建立模型分析了风管式通风系统和无风管式通风系统在换气次数为4、6、8和10 次/h工况下气流组织、空气龄分布等方面的优劣。结果表明，无风管式通风系统在不同工况下表现出气流组织更加稳定、空气龄更小的优势，通风换气效果更好。相同工况下，无风管式通风系统分布在各监测点的风速均大于风管式通风系统，各监测点整体风速差值在0.2 m/s左右，风管式通风系统空气龄大部分在500 s以上，无风管式通风系统空气龄均可维持在200 s以下。
Abstract:
The traditional duct ventilation system of underground wastewater treatment plants features a complex structure and occupies a considerable space with the duct. As a novel ventilation mode, the duct less ventilation system can curtail the construction of the duct, decrease the buried depth of the box, and possesses a wide application space. Taking an underground wastewater treatment plant in Hebei Province as the research subject, a model was constructed to analyze the advantages and disadvantages of the air flow organization and the air age distribution of the traditional duct ventilation system and the ductless ventilation system under the conditions of 4 times, 6 times, 8 times, and 10 times air changes per hour. The ductless ventilation system demonstrated the merits of a more stable air flow organization and a shorter air age under diverse working conditions, and the ventilation performance was superior. Under the same working condition, the wind speed of the ductless ventilation system distributed at each monitoring point was higher than that of the duct ventilation system, and the overall wind speed difference at each measuring point was approximately 0.2 m/s. The air age of the duct ventilation system was mostly above 500 seconds, while that of the ductless ventilation system could be maintained below 200 seconds.

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更新日期/Last Update: 2024-09-01