这是一种有效的方法，可以在不增加 消毒副产物是为了改善氯气接触室的流动特性。这个 氯接触室的最有效几何设计问题已经得到解决 过去学过。圆形水池比矩形水池更经济，但是 典型的挡板墙布置很难形成圆形。最 常见的挡板设计为蛇形或其他直腔组合， 通常达到70%或更低的消毒效率（T10/T）。 新的螺旋挡板设计将圆形接触室的经济性与 螺旋挡板具有极高的消毒效率和较低的水头损失 墙壁布置。虽然螺旋挡板的设计和建造都是在 在过去，人们常常错误地认为螺旋的实际建造是困难的。最 以前的设计依赖于外壳内部的同心圆壁，带有径向 与同心圆相交的墙。这种设计本质上是螺旋和螺旋的混合 一种蛇形的图案，虽然比直的更有效- 有壁蛇纹石 由于径向壁上的间隙，圆形壁的不连续性 使分析变得困难，成为一个重要的边界成员。螺旋形的设计是 完全由半径不同的半圆形或部分圆形组成。这 消除所有尖角，让水流始终以圆形模式流动， 从而大大减少湍流和水头损失。通过将入口置于 圆形水箱的边缘和中心的出口，考虑了交叉连接 被淘汰了。包括数字。

An effective means of providing a greater level of disinfection without increasing disinfection byproducts is to improve chlorine contact chamber flow characteristics. The question of the most efficient geometric design of a chlorine contact chamber has been studied in the past. A circular basin is more economical than a rectangular basin, but typical baffle wall arrangements are difficult to fit into a circular shape. The most common baffle designs are serpentine patterns or other combinations of straight chambers, which typically achieve disinfection efficiencies (T10/T) of 70% or less. A new spiral baffle design combines the economics of a circular contact chamber with the extremely high disinfection efficiency and low headloss inherent in a spiral baffle wall arrangement. Although spiral baffle designs have been designed and built in the past, the actual construction of a spiral is often mistakenly thought to be difficult. Most previous designs relied on concentric circular walls inside the outer shell, with a radial wall intersecting the concentric circles. This design is essentially a hybrid of a spiral and a serpentine pattern, and although more efficient than a straight-walled serpentine arrangement, the discontinuity of the circular walls due to the gaps along the radial wall make for difficult analysis, and a substantial boundary member. The spiral design was composed entirely of circular semi-circles or partial circles, of varying radii. This eliminated all sharp corners, allowing the water to always flow in circular pattern, thereby considerably reducing turbulence and head losses. By placing the inlet at the edge of the circular tank and the outlet in the center, concerns of cross connection were eliminated. Includes figures.