圆中环沉沙排沙过滤池结构特性试验研究

圆中环沉沙排沙过滤池是一种新型的浑水沉沙、排沙、过滤装置,通过新疆呼图壁城镇工业供水工程圆中环沉沙排沙过滤池的物理模型试验,模拟了在1 m3/s工况下的运行效果。试验结果表明:采用三层不同粒径的滤料,中心溢流筒加高0.4 m时,能较好的起到沉沙、排沙和过滤的作用且不被击穿,同时能满足引水量的要求,汇流槽平均流速在0.88～2.77 m/s范围内。与常规水沙分离装置相比,这种新型的装置实现了节能减排,环保性处理泥沙的目标,为水沙分离提供了另一种新的思路。

Experiment on structure characteristic for desilting filterof sediment of circular ring

Circular ring pond of desilting filter to sediment is a new type of desilting and filtrating equipment, the paper studied the physical model test of circular ring pond of sediment desalting filter in urban industrial water supply project of Hutu town of Xinjiang, simulated the operation effect under the condition of 1m³/s.The results show that the three filter materials of different particle size can better play a role in sand filtration, drainage filter and keep from the breakdown when the center overflow tube is heightened at 0.4m. At the same time, the equipment can meet the requirement of the amount of water diverted. The average flow velocity of busbar trunking is between 0.88and 2.77m/s.Compared with the common water and sediment separation device, the equipment realized the target of energy-saving,emission reduction and sediment environment-friendly dealt with, and can provide a new idea for the separation of water and sediment.