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1. 发明专利

JP2005146603A Sand pumping apparatus for hydraulic power plant 有权
标题翻译：液压动力装置用砂泵装置
公开(公告)号：JP2005146603A
公开(公告)日：2005-06-09
申请号：JP2003384000
申请日：2003-11-13
申请人：治 ▲檜▼谷 , Chugoku Electric Power Co Inc:The , Osamu Hitani , 中国電力株式会社
发明人： IMAOKA YASUNORI , KAWACHI YUICHI , ASAHI HIROSHI , HITANI OSAMU
IPC分类号： E02B9/04
CPC分类号： Y02E10/22
摘要： PROBLEM TO BE SOLVED: To provide a sand pumping apparatus for a hydraulic power plant avoiding blocking of an intake and a water conveyance port with silted deposition in a sand pumping facility combining an air mixing type jet pump with a vortex sand discharge pipe.
SOLUTION: In this sand pumping apparatus for a hydraulic power plant for eliminating the silted deposition deposited in an intake sand basin, a first and a fourth vortex sand discharge pipes 21, 24 are installed in a position of a distance d1 expressed in the following expression, along a water flow direction from a position when the silted deposition of maximum allowable height of the intake side wall of the intake sand basin is deposited: d1=(H1-h1)/tan(θ), wherein H1 is the maximum allowable height of the silted deposition from a bottom part of the intake sand basin on the intake side of the intake sand basin, h1 is the slit height of the vortex sand discharge pipes 21, 24 on the first and fourth intake side from the bottom part of the intake sand basin, and θ is an underwater angle of repose.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种用于液压动力装置的砂泵装置，避免了将砂浆沉积物中的进气口和输水口堵塞在一起，该抽沙设备将空气混合型喷射泵与涡流喷砂管。解决方案：在用于消除沉积在进气砂盆中的淤泥沉积物的用于液压动力设备的这种砂泵装置中，第一和第四涡流排出管21,24安装在距离d1 从沉积入口砂盆的进气侧壁的最大允许高度的淤泥沉积的位置沿着水流方向的以下表达式：d1 =（H1-h1）/ tan（θ），其中H1是进气砂流入口侧的进气砂槽底部的沉淀物的最大容许高度h1是从底部开始的第一和第四进气侧的涡流砂排出管21,24的切口高度进水砂盆的一部分，θ是水下的休止角。版权所有（C）2005，JPO＆NCIPI

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