发明授权
- 专利标题: Cleaning apparatus for filtration layer in seawater infiltration intake
- 专利标题(中): 用于海水渗透摄入过滤层的清洗装置
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申请号: US14347525申请日: 2012-08-10
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公开(公告)号: US09345993B2公开(公告)日: 2016-05-24
- 发明人: Hideyuki Niizato , Takayuki Inoue , Kiyokazu Mukai , Hitoshi Mimura
- 申请人: Hideyuki Niizato , Takayuki Inoue , Kiyokazu Mukai , Hitoshi Mimura
- 申请人地址: JP Osaka JP Osaka
- 专利权人: HITACHI ZOSEN CORPORATION,NAGAOKA CORPORATION
- 当前专利权人: HITACHI ZOSEN CORPORATION,NAGAOKA CORPORATION
- 当前专利权人地址: JP Osaka JP Osaka
- 代理机构: Brinks Gilson & Lione
- 优先权: JP2011-230916 20111020
- 国际申请: PCT/JP2012/070532 WO 20120810
- 国际公布: WO2013/058009 WO 20130425
- 主分类号: B01D24/46
- IPC分类号: B01D24/46 ; C02F1/00 ; E03B3/04 ; E02F3/88 ; E02B3/02 ; C02F103/08
摘要:
To provide a cleaning apparatus suitable for removing clogging substances trapped in a surface layer of a sand filtration layer. A cleaning apparatus equipped with drive wheels serving as a driving device configured to move across a surface of a sand filtration layer. A pump and a jet nozzle are provided as an agitation device configured to agitate a surface layer portion of the sand filtration layer only at a desired depth, and which blows the clogging substances upward into the seawater in a turbid water intake pit together with a filtration sand. A perforated pipe for suctioning turbid water, a pump, an ejector, and a discharge pipe for dilute turbid water are provided as a suction and discharge device configured to suction turbid water blown upward into seawater in the water intake pit by the agitation device, and discharge it to outside of the turbid water intake pit. Prevents clogging by performing a timely cleaning of the sand filtration layer, thereby making it possible to maintain a high-speed seawater infiltration rate for seawater. Impact on the surrounding environment is reduced, because the apparatus suctions turbid water containing clogging substances which is blown upward into the turbid water intake pit, and discharges it to outside of the system.
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