To provide a flow passage for power generation enabling the easily maintenance by taking out a windmill generator while preventing swirl from occurring in a joint section.
This flow passage for power generation comprises a lateral flow passage 1 for flowing water in the lateral direction and a vertical flow passage 3 for falling the water in the vertical direction. The hydraulic windmill generator 100 generating power by utilizing a kinetic energy produced when the water falls is installed in the vertical flow passage 3. The vertical flow passage 3 is connected to the lateral flow passage 1 through the joint section 2. In the joint section 2, the water is led from the lateral flow passage 1 to the vertical flow passage 3. A flat plate 6 functioning as a swirl generation suppressing member is installed in an area other than the area above the vertical flow passage 3 in the joint section 2 at an inclination angle of 30 to 45° relative to the surface of the water 10 flowing in the lateral flow passage 1. The flat plate 6 straightens the flow of the water 10 flowing in the lateral flow passage 3, and leads the water 10 to the vertical flow passage 3 while suppressing the occurrence of swirl.
COPYRIGHT: (C)2007,JPO&INPIT
Nobuyuki Hisue
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