浅谈引水式电站的排沙方法

• 作 者: 李让曾
• 机 构: 梅县地区水电局
• 出 处: 广东水电科技
• 发表日期: 1982年03期
• 关键词: 排沙 沉沙池 引水式电站 前池 漏斗 压力前池 水轮机 渠道流速 泥沙 设计原理

一、问题的提出目前,在引水式电站中,渠道挟带的泥沙一般采用与压力前池结合在一块的浅式平底沉沙池截留和排除.这种沉沙池只能把排沙闸附近的淤沙自流排走,其余的须靠人力排除,同时,一次自流排沙量很小,使排放次数频烦,造成管理上的不便,以至不能充分利用前池的沉沙效能,从而影响水轮机的出力和转轮等的寿命.本文就方便管理,提高排沙效果问题提出漏斗式沉沙池的设计原理和实际应用.

First, the issue raised At present, in the diversion station, the channel carrying sediment generally used in conjunction with the pressure of the pool in front of a shallow flat sand basin interception and exclusion .This sedimentation tank can only row sand gate In the meantime, the discharge of sediment from a stream is very small, causing frequent inconveniences in management and inconvenience in management. As a result, it can not make full use of the sedimentation efficiency of the forebay so as to affect The output of the turbine and the life of the runner, etc. In this paper, the design principle and practical application of the funnel-type desilting basin are put forward to facilitate the management and improve the sediment-discharging effect.