PUMP GATE USING VERTICAL SHAFT SUBMERGED PUMP

To provide a pump gate using a vertical shaft submerged pump, which can suppress an activation frequency of a pump, and reduce an installation space and an opening for loading and unloading in the pump.SOLUTION: A pump is provided on a gate door 4 that opens and closes a water channel. In a pump gat...

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1. Verfasser: WATABE SEIJI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a pump gate using a vertical shaft submerged pump, which can suppress an activation frequency of a pump, and reduce an installation space and an opening for loading and unloading in the pump.SOLUTION: A pump is provided on a gate door 4 that opens and closes a water channel. In a pump gate 2 having a structure for draining water on one side of the water channel closed by the gate door body 4, the pump is a vertical submerged pump 7. An intake pipe 13 is connected to a suction pipe 12 of the pump. An intake port 15 of the intake pipe 13 is opened at a position higher than a water level at which static pressure in the pump becomes zero during pump operation. Consequently, it is possible to suppress an activation frequency of the pump due to fluctuations in the water level, and reduce an installation space and an opening for loading and unloading in the pump.SELECTED DRAWING: Figure 1 【課題】ポンプの起動頻度を抑えると共に、ポンプの設置スペース、搬入出する開口を小さくすることを可能とした立軸水中ポンプを用いたポンプゲートを提供する。【解決手段】水路を開閉するゲート扉体4にポンプを備え、ゲート扉体4によって閉じた水路の一方の側の水を排水する構造のポンプゲート2において、前記ポンプは立軸水中ポンプ7であり、前記ポンプの吸込管12に吸気管13を接続し、吸気管13の吸気口15をポンプ運転中にポンプ内の静圧がゼロとなる水位より高い位置で開口することで、水位変動によるポンプの起動頻度を抑えると共に、ポンプの設置スペース、搬入出する開口を小さくできる。【選択図】図1