目前在水源井除砂设备中采用的压力式除砂器有旋流除砂器和扩大管沉淀器两种,旋流除砂器水头损失大,一般约2～3米,需要做耐磨衬里,制造比较困难,维修工作量亦较大。扩大管式沉淀器体积大,效率低,已很少采用,两者由于型式和构造上的原因,一台处理能力很难超过150～200米~3/时。为满足北京大流量水源井除砂的需要,我院在北京自来水公司的协作和支持下,经过小型及中间试验,研制成了φ1200毫米压力式侧向流斜板除砂器,已在北京某水厂水源井上安装使用,效果良好,达到了设计要求。 At present, the pressure type sand remover used in the water source well de-sanding equipment has two kinds, a swirling sand remover and an enlarged tube sedimenter. The swirling sand remover has a large head loss, generally about 2 to 3 meters, and needs to be wear-resistant lining. Manufacture is more difficult and maintenance work is also larger. Expanded tubular sedimentators are bulky and inefficient, and they are rarely used. Because of the type and construction reasons, it is difficult for one to handle more than 150 to 200 meters to 3/hour. In order to meet the need of removing sand from large-flow water wells in Beijing, our institute under the cooperation and support of Beijing Water Company, after small-scale and intermediate tests, developed a φ1200 mm pressure type lateral flow inclined plate sand remover, which is already in Beijing. The waterworks of the waterworks are installed and used in wells, and the results are good and the design requirements have been met.