JPS62279277A - Power generation device by utilizing wave power - Google Patents

Abstract

PURPOSE:To improve the power generation efficiency by suspending a guide rail onto the shafts parallel to the wave receiving plates of a buoy by bearing rings and installing an engaging chain of the buoy onto the pulley on the guide rail. CONSTITUTION:Shafts 1 and 2 are installed in parallel to the wave receiving plates 4a and 4b, passing through the buoyancy center point T of a buoy, and a circular arcuate guide rail 3 is suspended so as to freely move in the bearing rings 1a and 2a at the both edges. A pulley 5 is laied onto the guide rail 3 and freely rolled, and a hooking chain 7 is installed onto the pulley 5. Therefore, the wave receiving plate can be prevented from being influenced by the ocean current, and a right angle is always kept for the direction of wave, keeping the superior power generation efficiency.

Description

Detailed Description of the Invention This invention is disclosed in Japanese Unexamined Patent Publication (A) 1986-38167. explain.

In Fig. 2, Δ is a side view of the power generating buoy in curved order when it is on the sea, B is a plan view (schematic diagram), and M is the sea level.

At this moment, if the buoy receives an ocean current in the direction of the arrow N, the purpose is to keep it at right angles to the wave direction by the reciprocating motion of the seawater caused by the waves in order to sufficiently drive the waves of the buoy and generate electricity. Yes, but as mentioned above, this wave receiving plate due to ocean currents,
It is perpendicular to the ocean current, so in places where there is an ocean current, the buoy's power generation will be most effectively affected by the waves if the ocean current and the waves are in the same direction or in the opposite direction. When the sea current prevails, the wave receiving plate becomes perpendicular to the direction of the sea current. Especially when the sea current and the wave direction are perpendicular to each other, the power generated is significantly reduced.

The invention of the present application eliminates this drawback and allows the power generation mechanism to operate optimally by always keeping the wave receiving plate perpendicular to the wave direction without being affected by ocean currents.

FIG. 3 is a schematic diagram for explaining the state in which the wave receiving plate in the power generation buoy of the present invention is subjected to the action of ocean currents and waves, where 0 is the buoy, 1 is an arcuate guide rail, and 2. is a pulley, 3 is a mooring chain, and 4 is a submarine anchor.
If the ocean current is in the direction of arrow N, the wave receiving plate 4a4b will follow the ocean current at right angles as shown in the figure, and the pulley 2
tries to maintain a stable position by overlapping the center line P-Q of the guide rail by the action of the ocean current.However, at this time, the part of the guide rail on which the pulley rests is nearly flat, and the part of the buoy that is The pulley is an arrow due to agitation ■ or W
It rolls in the direction and loses stability as shown in Fig. 4, side view 1.
．． And for the ocean current direction N, as shown in plan view 2,
The wave receiving plate was originally intended to be parallel like a wind vane, but since the pulley position was not fixed, the buoy would move slightly.

or rr When it is tilted in the direction of the arrow, it will roll near the center of the pulley or guide rail, and at this time, the stability of this state will be lost again, and the wave receiving plate will again be perpendicular to the direction of the ocean current. In this way, the direction of this buoy's wave receiving plate constantly changes from perpendicular to the ocean current to diagonal, parallel, and oblique, and in addition, as shown in Figure 5, the mooring chain is oriented 20 to 30 degrees to the left and right from the ocean current direction. It also does floating movements to some degree.

This buoy has no stable direction with respect to ocean currents, it is extremely unstable, and this instability is not affected by the strength of ocean currents (fast or slow). The fact that the direction of ocean currents is unstable is that
At this time, it is quite easy to try to direct this buoy in one direction using other forces.

Now, if this buoy is hit by a wave, the reciprocating motion of the seawater caused by the waves will act on the wave receiving plate, creating a force that directs it at right angles to the direction of the waves.The direction of the buoy is determined by the action of these waves alone. , and its direction cannot be changed by ocean currents.
This buoy is an extremely useful invention in wave power generation devices because it always maintains the best direction with respect to the waves and allows the power generation mechanism to operate in the best condition.

In carrying out the present invention, the guide rail 3 in FIG. The arc radius of is based on the radius R1 centered at the buoyancy center point, T, as the design standard.However, if the mooring chain is long and heavy, this radius R1 may be increased (flattened circle).
If the mooring chain is lightweight, this radius R1
(inverted parabola), or make R9 as standard and adjust it by attaching a floating ball or weight to a part of the mooring chain. Pulley 6 in Figure 1. It is within the scope of the claims of this invention to eliminate the sliding ring and use it to achieve the same effect as a pulley.

[Brief explanation of the drawing]

Figure 1 shows the main parts of the wave power generation device of the present invention, and Figure A
, is a side view, Figure B is a front view, and Figure C1 is a plan view. FIG. 2 shows a schematic diagram for explaining the song order invention, where FIG. A is a side view and FIG. B is a plan view. FIG. 3 is a plan view showing a schematic diagram for explaining the relationship between the wave power generation device of the present invention and ocean currents. FIG. 4 shows a schematic diagram for explaining the relationship between the wave power generation device of the present invention and ocean currents, and FIG. is a side view, Figure 2. is a plan view. FIG. 5 shows a schematic diagram for explaining the relationship between the wave power generation device of the present invention and ocean currents.

Claims (1)

[Claims] In the buoy body of a wave power generation device, as shown in FIG. -Z, the outside of the buoy body on the line is equipped with shafts like 1 and 2 in the figures A, B, and C, so that the semicircular guide rails like 3 can be connected to the bearing rings 1a, 2a, A pulley 5 is attached to the guide rail 3, which is suspended from the guide rail 3 so that it can freely swing in the directions of arrows R and S in figure B.
A wave power generation device buoy characterized by having a buoy mooring chain (rope) attached to this pulley so that it can freely roll on a rail in the direction of arrow GH in Figure A.