JPH0693952A - Tidal power generating method and device - Google Patents

Abstract

PURPOSE:To provide an extremely excellent tidal power generating method and device which perform continuous power generation by utilizing a range of tide without being influenced by waves and a temperature difference between seasons, in ocean power generation. CONSTITUTION:A tidal power generating device comprises a floating body 1 floating on a sea surface and besides vertically moved owing to the difference of elevation of a tide level, a pressure circulating device 2 to pressurize and circulate fluid, with which a line 28 is filled, through vertical movement of the floating body 1, a fluid pump 20 rotated by means of fluid circulated through the line 28, and a generator 30 to generate electricity through rotation of the fluid pump 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to marine power generation, and more particularly to a tidal power generation method and apparatus for rotating a fluid pump by utilizing vertical movement due to a difference in tide level such as tidal difference of the sea.

[0002]

2. Description of the Related Art Conventionally, in ocean power generation, wave power generation using a difference in wave height or ocean temperature difference power generation using a temperature difference in seawater has been used.

[0003]

However, the above-mentioned conventional ones have many problems in practical use because they can generate electricity only intermittently because there are almost no waves due to the weather and the temperature difference is small depending on the season. was there.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an extremely excellent tidal power generation method and apparatus which are not affected by waves and temperature differences due to seasons and which can continuously generate power. It is an issue.

[0005]

In order to solve the above-mentioned problems, the present invention invents a completely new method and apparatus for tidal power generation, and takes the following means. That is, according to the present invention, in ocean power generation using seawater, the floating body 1 moves up and down due to the height difference of the tide level, and this up and down movement is performed by the pressure circulation device 2 in the pipeline 2
There is a tidal power generation method in which the fluid filled in 8 is pressurized and the pressurized fluid is circulated in the pipeline 28 to rotate the fluid pump 20 provided in the pipeline 28 and to generate power by this rotation. .

[0006] A floating body 1 which floats above the sea surface and moves up and down by the height difference of the tide, and a pressure circulation for pressurizing and circulating the fluid filled in the pipeline 28 by the vertical movement of the floating body 1. Device 2
And a fluid pump 20 that is rotated by a fluid circulating in the pipe 28, and a tidal power generation device that includes a generator 30 that generates electricity by the rotation of the fluid pump 20.

[0007]

In the tidal power generation method and apparatus having the above structure, first, the floating body 1 on the sea surface moves up and down by the height of the tide level due to the ebb and flow of the tide, and this up and down movement is caused by the pressure circulating device 2. The pressure circulating device 2 pressurizes the fluid filled in the pipe line 28 and sucks and discharges the fluid to circulate the fluid. Then, the fluid pump 20 is rotated by the circulating fluid, and this rotation is transmitted to the generator 30 connected to the fluid pump 20.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 designates a hollow in the sea, which is a hollow and has a suction port 35a, a discharge port 35b, and a pump 3 of seawater.
Figure 5 shows a float with 5. Reference numeral 2 denotes a pressure circulating device provided between the floating body 1 and the seabed. Reference numerals 3 and 3a denote expander-shaped expander bodies provided at both left and right ends of the pressure circulation device 2, the upper pivot portion of which is attached to the floating body 1 and the lower pivot portion of which is engaged with the base bodies 15 and 15a. I will do it.

Reference numerals 7, 7a, 7b are three circular cylinders arranged in parallel, and suction ports 10, 10a, which have jack valves 12, 12a, 12b symmetrically at their central portions, respectively.
10b and discharge ports 11, 11a, 11b having jack valves 13, 13a, 13b. 8,
Reference numerals 9, 8a, 9a and 8b, 9b are a pair of pistons and are symmetrically inscribed inside the cylinders 7, 7a, 7b, and the pistons are connected to the expandable bodies 3 and 3a, respectively. The pressure circulation device 2 is configured by connecting 7, 7a and 7b to the expandable members 3 and 3a.

Reference numeral 28 denotes a pipe 21 that feeds oil to the oil pump 20 through a pipe line connected to the pressure circulation device 2, and oil that has passed through the oil pump 20 to the cylinder 7 again.
It is formed by a pipe 22 that feeds 7a and 7b. The tidal power generation apparatus according to this embodiment has the above-described configuration. A method of performing tidal power generation using the apparatus described below will be described. First, FIG. 3 shows the time of low tide, in which the telescopic body 3 of the pressure circulating device 2 engaged with the lower end of the floating body 1 provided on the sea.
3a is in a contracted state, and the pistons 8, 9, 8a, 9a of the cylinders 7, 7a are in the released state, the cylinder 7b.
The pistons 8b and 9b are in a pressed state.

Next, when the tide shifts from the low tide to the high tide, the tide level rises as shown in FIG. 4, and the floating body 1 provided above the sea is pushed up. Thereby, the pressure circulation device 2
The expandable and contractible bodies 3, 3a are extended to the inner cylinders 7, 7a.
The inner pistons 8, 9 and 8a, 9a are pressed to release the pistons 8b, 9b of the cylinder 7b provided at the center.

In this case, the oil in the cylinders 7 and 7a is discharged from the discharge ports 11 and 11a, the discharged oil passes through the pipe 21 and the oil pump 20 is rotated, and the booster gear 25 connected to the oil pump 20 is terminated. As a result, the generator 30 is rotated to generate electricity. The oil pump 2
The oil passing through 0 is sucked through the pipe 22 from the suction port 10b of the cylinder 7b.

When transitioning from high tide to low tide, the tide level lowers as shown in FIG. 5, so that the floating body 1 lowers in accordance with the sea surface. As a result, the expandable bodies 3 and 3a of the pressure circulation device 2 are contracted to release the pistons 8 and 9 and 8a and 9a in the internal cylinders 7 and 7a, respectively, and the pistons of the cylinder 7b provided in the center. Press 8b and 9b.

In this case, the oil in the central cylinder 7b is discharged from the discharge port 11b as opposed to the high tide, and the discharged oil is passed through the pipe 21 to rotate the oil pump 20 as in the high tide. Oil pump 2
Electricity is generated by rotating the generator 30 via the promotion gear 25 connected to 0. In addition, the oil that has passed through the oil pump 20 passes through the vapor 22 and passes through the cylinders 7, 7a.
Is sucked in through the suction ports 10 and 10a.

When the tide level difference at low tide is small, as shown in FIG. 6, the pump 35 in the floating body 1 on the sea is operated and seawater is sucked in through the suction port 35a.
The volume of the floating body 1 below the sea surface is increased, whereby a state similar to the transition from the high tide to the low tide is created and power generation is generated.

By operating the pump 35 to discharge the seawater of the floating body 1, the volume of the floating body 1 below the sea level is reduced, which is similar to the transition from low tide to high tide. Create a state and generate electricity.

Therefore, the floating body 1, which moves up and down as described above, has a lower surface matching the area thereof.

As shown in FIG. 7, a plurality of the pressure circulation devices 2 can be installed, and the upper surface of the floating body 1 can be used for building airports, maritime cities and the like.

In the above embodiment, the floating body 1 moves up and down by inhaling and discharging seawater when the height difference of the tide level is small, but this is not absolutely necessary. There is no need to move up and down due to the height difference of the tide level. In addition, the expander / contractor 3 and the piston 8,
The pressure circulation device 2 including the cylinder 7 having 9 is not particularly limited as long as it can convert vertical movement into reciprocating movement to pressurize and circulate the fluid. Furthermore,
In the above embodiment, oil is used as an example of the fluid, but the fluid is not limited to this, and the type of fluid does not matter. Furthermore, by rotating the oil pump 20 through the pipe 21, the power generator 30 was rotated by terminating the booster gear 25 connected to the oil pump 20, and electricity was generated. It is also possible to rotate the oil pump 20 at a constant speed by adjusting the oil flow. Further, the generator 30 may be installed on the seabed, or on the upper surface or the side surface of the floating body 1,
The installation location is not limited to any particular one.

[0019]

As described above, according to the present invention, in the ocean power generation using seawater, the floating body on the sea surface moves up and down depending on the height of the tidal level, and by moving up and down, the pressure The circulation device has a special effect of pressurizing the fluid filled in the pipeline to perform suction and discharge, thereby circulating the fluid in the pipeline, and causing the circulating fluid to rotate the fluid pump to generate electricity. I arrived.

When the difference in ebb and flow is small, by inhaling and releasing seawater inside the floating body,
There is an advantage that the vertical movement of the floating body can be adjusted and electric power can be continuously supplied. In addition, the floating body not only moves up and down on the surface of the sea, but its upper surface can be used for various purposes such as an airport or a maritime city.

[0021]

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a cylinder.

FIG. 3 is a sectional view showing the installation of the present invention on the seabed at low tide.

FIG. 4 is a cross-sectional view showing a state where the present invention has moved from low tide to high tide.

FIG. 5 is a cross-sectional view showing a state where the present invention moves from high tide to low tide.

FIG. 6 is a cross-sectional view showing a state where a floating body pump is used.

FIG. 7 is a perspective view when a plurality of pressure circulation devices are used on the lower surface of the floating body.

[Explanation of symbols]

 1 ... Floating body 2 ... Pressure circulation device 3, 3a ... Telescopic body 7, 7a, 7b ... Cylinder 8, 8a, 8b, 9, 9a, 9b ... Piston 20 ... Fluid pump 28 ... Road 30 ... Generator

Claims (5)

[Claims] 1. A floating body (1) is moved up and down due to a difference in tide level, and this vertical movement is provided in a pipe (28) by pressurizing and circulating a fluid filled in a pipe (28) by a pressure circulating device (2). A tidal power generation method, characterized in that the fluid pump 20 thus rotated is rotated to generate power. 2. A tidal power generation method, characterized in that the floating body 1 according to claim 1 has a structure capable of adjusting vertical movement of the sea surface. 3. A buoyant body 1 which floats above the sea surface and moves up and down depending on the height difference of the tide level, and the vertical movement of the buoyant body 1 pressurizes and circulates the fluid filled in the pipeline 28. Pressure circulation device 2,
A tidal power generation device comprising a fluid pump 20 which is rotated by a fluid circulating in the pipe 28 and a generator 30 which generates electricity by the rotation of the fluid pump 20. 4. A tidal power generation apparatus having a structure in which the vertical movement of the floating body 1 can be adjusted by sucking and discharging seawater into and from the floating body 1 according to claim 3. . 5. The apparatus for tidal power generation according to claim 3,
The pressure circulation device 2 is composed of at least one or more pandagraph-shaped expandable bodies 3 ... And at least one cylinder 7 having a pair of pistons 8, 9 inside, and the cylinders 7 ... The tidal power generation device is characterized in that the tidal power generation device is connected to the left and right pivotal support portions of the expandable and contractable body 3 through the.