JP2001055970A - Wind force/water flow power generating set having hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase power generation performance with low cost by increasing a speed of the natural wind and water flow to a value of several times of natural ones. SOLUTION: A megaphone-like hood 4 having an inlet whose section is several times as large as that of an inlet is arranged in front of a rotating blade 1. Air speed at the outlet is several times as large as that at the inlet. This wind is blown off against the rotating blade 1, for increasing generated power. In addition, this power generation facility is arranged in a narrow space while a number of outlets being parallely arranged in the form of multistage while enlarging the hood 4 without being influenced by mutual flow of air. The hood 4 is firmly fixed by inner and outer rope wires 5 lead from main and sub-towers 3, a horizontal shaft 8 between the towers, and a number of small foundations 7 outside the hood. An air direction following auxiliary hood 6 may be arranged on the front of the hood 4. This invention can be adapted to a water flow power generation.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power generation system utilizing the energy of wind and water flow.

2. Description of the Related Art Conventional power generation using the energy of wind and water flows simply places the device in a natural stream.

[Problems to be Solved by the Invention] To increase power generation capacity at a low cost by increasing the flow speed of the natural wind and water flow many times.

[MEANS FOR SOLVING THE PROBLEMS] A megaphone-like hood (4) whose cross-sectional area at the entrance is many times larger than that at the exit is installed in front of the rotor (1) of the generator (2). The speed and velocity of the wind at the exit are made many times faster than those of the natural wind, sea and river at the entrance to impinge on the rotor (1) to greatly increase the power generation capacity.

SUMMARY OF THE INVENTION A megaphone-shaped hood (4) having an inlet having a cross-sectional area many times larger than that of an outlet is provided with a main tower (3) on which, for example, a generator (2) at the outlet is mounted. ) And a number of inner and outer cables from the sub-tower (3) located near the entrance, from the horizontal axis (8) inside the hood connecting these two towers and from the many small foundations (7) outside it. Fix firmly in Article (5). At the tip of this hood, an auxiliary hood (6) for wind direction / water flow tracking may be provided. Furthermore, if this hood is made larger and its outlets are multiplexed and arranged in parallel to increase the number of generators, it is possible to obtain large-capacity integrated electricity in a small land at a low cost.

[Effect of the Invention] In the conventional method, it has been difficult to increase the power generation capacity by wind and water flow. This can be multiplied many times at low cost by the present invention. Conventionally, in order to further increase the power generation capacity, a large number of power generation facilities had to be sparsely installed to avoid the influence of each other's flow, and thus a large area was required. By the application of the present invention, much larger large-capacity power generation can be performed on a small land without mutual influence.

[Brief description of the drawings]

 FIG. 1 is a front side view of the power generation equipment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Rotor blade 2 Generator 3 Main-sub tower 4 Hood 5 Inner / outer fixed cable 6 Wind direction tracking hood 7 Each foundation 8 Horizontal axis

Claims (1)

[Claims] 1. A megaphone-shaped hood (4) whose inlet and outlet are each circular, elliptical, polygonal or the like, and whose inlet has a cross-sectional area many times larger than that of the outlet. 1) A wind power generator installed in front of etc. to increase the power generation capacity by increasing the wind speed at the exit many times over that at the entrance. This also applies to water flow generation using water turbines.