清水池水力效率影响因素研究  

Study on Factor Influencing Hydraulic Efficiency of Clear Water Tank

作　　者：朱智勇 ZHU Zhiyong

机构地区：[1]上海城投兴港投资建设(集团)有限公司,上海市201306

出　　处：《城市道桥与防洪》2024年第1期230-232,M0019,共4页Urban Roads Bridges & Flood Control

基　　金：上海市科学技术委员会科研项目(22dz1209100)。

摘　　要：清水池具有水力调节和消毒接触的双重作用,提高t_(10)/T是提高消毒效率而减少消毒剂投加量和副产物生成量的有效方法。针对清水池实例,进行整体建模,以数值模拟方法,研究主要尺寸对清水池t_(10)/T的影响程度,并验证设计方案的合理性。结果表明:长宽比是t_(10)/T影响最为明显的因素,但变大的趋势放缓。减少弯道数量及宽度和增大进水管管径,均可使t_(10)/T有所增加。清水池实例的长宽比为38,水力效率为0.54,可以满足不少于0.5的设计要求。The clear water tank has the dual function of hydraulic regulation and disinfection contact.The improvement of t_(10)/T is an important means to improve the disinfection efficiency and reduce the disinfector dosage and its by-products.Aiming at a case of clear water tank,the overall modeling is carried out.By numerical simulation method,the influence of main dimensions on t_(10)/T clear water tank is studied,and the rationality of the design scheme is verified.The result shows that the length-width ratio is the most obvious factor to influence t_(10)/T,but the trend of increasing is slowing down.The t_(10)/T can be increased by reducing the number and width of bends and increasing the diameter of influent pipe.The length-width ratio of the clear water tank is 38 and the hydraulic efficiency is 0.54 in a case,which can meet the design requirement of not less than 0.5.

关 键 词：清水池 CFD 长宽比 弯道 进水 t_(10)/T 

分 类 号：TU991[建筑科学—市政工程]