JPS59206680A - Wave-energy-electric power generation device equipped with floating body - Google Patents

Abstract

PURPOSE:To obtain electric power stationarily by converting the swing motion energy of a floating body into the hydraulic pressure in a cylinder through a link mechanism and storing said energy into accumulators and revolving a generator through a hydraulic motor and supplying electric power through batteries. CONSTITUTION:When a floating body 1 swings, the oil in double-acting hydraulic cylinders 2-4 is formed into unidirectional high-pressure oil flow by rectifying valves 11-13 through effluence and inflow pipes 5-10 and flows-out from effluence pipes 14-16, and negative-pressure oil flows-in from oil inflow pipes 17- 19. Said high-pressure oil flow is stored into an accumulator 29 or 30 through check valves 22-24 and further stored into an accumulator 34 through a relief valve 32 and a check valve 33 and revolves a generator 39 through a flow- rate adjusting valve 35 and a hydraulic motor 36. The electric energy thus generated supplies electricity into an electrical load 42 through charge and discharge of batteries 41. Thus, wave energy is made smooth as far as possible, and electric power can be supplied stationarily for a long period even with any form of wave length and wave height.

Description

DETAILED DESCRIPTION OF THE INVENTION (Objective of the Invention) The present invention is aimed at reducing the force exerted on the link connecting the structures and the floating body when the floating body moves in waves between structures fixed to the seabed at appropriate intervals. The purpose of this project is to convert wave energy into electric power and other forms of energy by using it, and to put that electric power to practical use.

(Structure of the invention) Figure 1 shows a wave energy-to-order conversion device consisting of a fixed structure, a floating body, a link, and a double-acting hydraulic cylinder. When the floating body is shaken by waves, the double-acting hydraulic cylinder connected to the link The piston slides back and forth. The present invention utilizes the double-acting hydraulic pressure/hydraulic pressure generated from the cylinder using this second-order conversion device.The mechanism of the wave energy-order conversion device is explained with reference to FIG. 1. (2
) is connected to the fixed structure (1) by a connecting beam (4).
The bottom of (2) is fixed to the seabed. Fixed structure (1
) Between (2), the floating body (3) is floated, and the links (7) and (8) are connected to the shaft (6) of the bearing (5) provided at the center of the front upper surface of the floating body (3), The end of the link (8) is connected to the axis α0 of a bearing (9) provided on the front surface of the connecting beam (4). Bearings (1) installed on both sides near the rear part of the floating body (3)
A bearing (1η
The ends of the link (1G (lie) are respectively connected to the shaft (19) of θ8). )
α9α0 is a double-acting cylinder (23) (241 (251) piston rod (2[i) '27) (28) at the end of the lever f20) (2]) C22) and a rotating shaft (29
) (30) 0]) and floats on waves (3)
When the floating body (3) moves, the movement of the floating body (3) is caused by link (7) (l old 1
0 and the piston is connected to the double-acting hydraulic cylinder C23) C24) via the levers (20) (21) (22).
Move back and forth inside C25).

Furthermore, FIG. 2 shows the operating principle of the entire wave energy power generation device.

When the floating body (1) moves while the piping system is filled with oil, the oil in the double-acting hydraulic cylinders (2), (3), and (4) will
Double-acting hydraulic cylinder (2) that alternately repeats high and low pressure (
3) Oil inlet/outlet pipe (5) connected to the top of (4>) (6
) (7) (8) C9) Outflows from (10), is rectified by rectifier valve θI) (one 0'3, and flows from oil spill pipe 0 to 0Q
High-pressure oil with a unidirectional flow flows out from (1), and zero-pressure oil with a unidirectional flow flows in from the oil inlet pipe 0 (1, il).

The oil inflow pipe Q'19 (18) C19) has an appropriate length and oil is sucked up from the oil inflow pipe (20).

A check valve (22) is installed at the outlet end of the oil spill pipe αΦα9α0.
(23) (24+ is connected, check valve (22) (2
3) The outlet end of (24) is the oil outflow pipe 05) (2G)C
27) respectively connected to each double-acting hydraulic cylinder (2)
<3) Prevent pressure interference between (4). Further, the oil spill pipe (2G) and the oil spill pipe (27) are joined to the oil spill pipe (28).

Here, a pressure accumulator 载) and a pressure accumulator 00) are connected between the oil spill pipe (25) and the oil spill pipe (28) to reduce pulsation of the pressure oil. The oil spill pipe (25) and the oil spill pipe (28) are pipe-joined to the oil spill pipe G1) and drain the pressure oil discharged from each double-acting hydraulic cylinder (2), (3), and (4). Outflow pipe (join at 3rd point)

In the middle of the oil spill pipe 01), there is a double-acting hydraulic pressure 7 cylinder (2).
(3) An IJ valve θ2 is provided to return the pressure oil generated from (4) above a certain pressure to the oil tank to ensure the safety of the equipment and piping system.

The pressure oil flowing through the oil spill pipe 0) is accumulated in the check valve for backflow prevention IL (passing through 33 to the pressure oil accumulation pressure accumulator 64), and the pressure oil flowing through the flow meter adjustment valve 0 is a hydraulic motor (3
6), rotates it, and flows into the oil tank (21) through the oil outflow pipe 07).

In addition, by connecting a generator (3◎) to the rotating shaft 6→ of the hydraulic motor 0, wave energy is converted into electrical energy, and the electrical energy is stored in the electric wire (storage battery Ql connected to 埒), and the light bulb and electric heat Supplies power to electrical loads Oa such as devices and motors.

Note that wave energy can be effectively converted by arranging a plurality of floating bodies between fixed structures at appropriate intervals.

1. Pressure accumulators (U→) can store and release hydraulic energy for a long time by increasing the number, oil 1, (E motor 0 supply) If multiple generators 00 are arranged and the stored energy is small generates electricity by rotating one hydraulic motor and generator, and if there is a lot of stored energy, it can efficiently generate electricity for a long time by rotating multiple hydraulic motors and generators.

In addition, the generated electrical energy is transferred to electric wires (undersea power lines)
By transmitting power to the land using a battery, etc., and alternately charging and discharging two or more sets of storage batteries, it is possible to extend the life of the storage batteries and to generate stable electrical energy over a long period of time.

The hydraulic motor, generator, oil tank, valves, and piping are mounted within the connecting beam (4) or fixed structure (1) in Figure 1.

(Effects of the Invention) The amount of energy in a single ocean wave is enormous, and it has not yet been possible to convert this energy into usable energy such as electricity and use it effectively.

The present invention aims to store and smooth wave energy to generate power that can be saved for use. Many of the other wave power generation inventions deal only with the motion of floating bodies or only with energy storage devices, and none have been completed as a comprehensive system. However, in the present invention,
By smoothing the wave energy as much as possible, it is possible to generate steady power over a long period of time, regardless of the wavelength and wave height of waves.

[Brief explanation of drawings]

FIG. 1 is an explanatory perspective view showing the mechanism of the link and double-acting hydraulic cylinder when the floating body is suspended between fixed structures. FIG. 2 is an explanatory perspective view showing the system configuration of the wave energy power generation device according to the present invention. It is a line diagram. 5. References Practical application: 1982-112210 Practical application: 1982-101854 Practical application: 1982-161129 Practical application: 1982-018116

Claims (1)

[Claims] As shown in the detailed description of the invention, one or more floating bodies are placed between structures fixed to the seabed, the floating bodies and the structures are connected by a link mechanism, and a hydraulic cylinder and a hydraulic cylinder provided on each link are connected. A piston mechanism converts the kinetic energy of a floating body shaken by waves into hydraulic pressure in a cylinder, stores the high-pressure oil in a pressure accumulator, and gradually releases it with a flow control valve to drive multiple hydraulic motors. Each hydraulic motor rotates multiple generators to generate electricity, which is then integrated and transmitted via submarine cables and stored in two or more sets of storage batteries, with one storage battery discharging to the electrical load. A device that generates electrical energy for a long time by alternately repeating charging and discharging, such as charging the other storage battery while the other battery is being charged.