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传统的防沙和排沙工程措施主要有定期冲洗式沉沙池和连续冲洗式沉沙池两种,这些传统技术不能满足高效节能的防沙和排沙要求。通过定期冲洗式沉沙池、连续冲洗式沉沙池、排沙漏斗进行比选,并通过水力计算和对比论证分析。结果表明:排沙漏斗产生稳定的螺旋流,水流流速较大,加速泥沙向中心的排沙底孔和漏斗底部运动;而定期冲洗式沉沙池、连续冲洗式沉沙池中不存在稳定的螺旋流。排沙漏斗具有结构紧凑,工程量和投资最少,泥沙分离率较大,耗水率较少,所以排沙漏斗是一种经济、高效节水的防沙和排沙设施。
The traditional sand control and sediment removal engineering measures are mainly regular flushing settling tank and continuous flushing settling tank. These traditional technologies can not meet the requirements of high-efficiency and energy-saving sand control and sediment discharge. Through regular flushing desilting basin, continuous flushed desilting basin, sediment hopper for comparison and selection, and through hydraulic calculation and comparative analysis. The results show that the sediment hopper produces a stable spiral flow and the velocity of the flow is relatively large, accelerating the movement of sediment to the bottom sediment bottom hole and the bottom of the funnel. However, there is no stability in the regular flushing settling basin and the continuous flushing settling basin The spiral flow. Sand hopper with a compact structure, the least amount of engineering and investment, sediment separation rate, water consumption less, so sand funnel is an economical, efficient water-saving sand and sediment removal facilities.