清水池水力效率影响因素研究

Study on Factor Influencing Hydraulic Efficiency of Clear Water Tank

摘要:

清水池具有水力调节和消毒接触的双重作用，提高t10 /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t10 /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t10 /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t10 /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。

Abstract:

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.