| 摘要 |
PROBLEM TO BE SOLVED: To produce a hydraulic power generation by circulating a flow in a tubular conduit utilizing the water flow property by providing a water flow preventing valve between a circulation pump and the tubular conduit and disposing a flow speed controlling member between the water flow preventing valve and the tubular conduit to generate a water flow in the tubular conduit provided at an underground. SOLUTION: A tubular conduit 2 having a suction pipe is buried under a water surface of sea water or river water and a water wheel 3, a hydraulic power generator 4 and a circulation pump 6 are buried in a tubular conduit communicated with a ground surface of an underground. Water is made to flow from the suction pipe of sea water or river water to a water flow passage W in the tubular conduit 2 by an operation of the circulation pump 6 to cause a reflux and a circulation. The water wheel 3 is rotated by a circulation of sea water or river water to drive the hydraulic power generator 4. A flow rate controlling member 8 is disposed between the tubular conduit 2 and the water flow preventing valve 9 and the water flow preventing valve 9 is between the circulation pump 6 and the tubular conduit 2. Further, a gate 10 and a water quantity controlling valve 11 are disposed on an upper portion of the tubular conduit 2.
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