Study on Factor Influencing Hydraulic Efficiency of Clear Water Tank
The clear water tank has the dual function of hydraulic regulation and disinfection contact.The improvement of t10/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 t10/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 t10/T,but the trend of increasing is slowing down.The t10/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.
clear water tankCFDlength-width ratiocurveinfluentt10/T
NETL
NSTL
万方数据
维普
