| 摘要 |
The present invention relates to a micro small hydropower generating apparatus, comprising: a cylindrical water tank body having an inlet port and a drainage port thereon; an impeller accommodated in the water tank body to be rotated by a current flowing into the water tank body; a rotary shaft shaft-combined with the impeller; and a generator converting rotational energy generated by the rotary shaft into electric energy, wherein the water tank body includes: a pair of through holes provided in the water tank body to face each other on the circumferential surface thereof such that water power is generated using a current having a head less than or equal to a predetermined height; and a leading channel consisting of an inlet port into which a current flows in a direction tangential to the circumferential surface, a partition for partitioning an internal space in a flow direction in the inlet port, and an internal channel and an external channel formed by the partition. The internal channel is connected to a through hole at one side adjacent to the inlet port to allow the current flowing into through the leading channel to flow into the through hole at one side. The external channel extends along the circumference of the water tank body, and is connected to a through hole at the other side to allow the current flowing into through the leading channel to flow into the through hole at the other side. According to the present invention, a vortex flows into the water tank body uniformly and bi-directionally to maximize the rotator power of the impeller, and generation output can be economically ensured even in a current environment such a low flow and a low head less than or equal to 2 m by improving generating efficiency. |
