JPH0370873A - Compressed air production device utilizing wave force - Google Patents

Abstract

PURPOSE:To increase the energy captured by wave force by arranging a single or a plural number of air compressing elements in a dock type structure, compressing the air inside with the wave force introduced, and storing in a storage tank. CONSTITUTION:Cylindrical air compressing elements A, B whose bottoms are obliquely cut off to face against rushing waves, and cylindrical air compressing elements C, D whose bottom openings are inclined toward rushing waves are arranged in a work room inside a dock type structure. The sir inside is respectively compressed with the waves incoming from the direction marked with an arrow 15, and the compressed air is transmitted to a turbine 22 through a transmission pipe 9 and a storage tank 19 for power generation. On the other hand, when the waves are on the ebb, a check valve 18 is opened to suck atmospheric air into each air compressing element A-D through a suction pipe 8 to repeat the above movements. An inclination is given to the bottom 4 and side walls 2 to enhance wave energy catching efficiency. The captured energy of wave force is thus increased by several times es compared with conventional structures.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a compressed air production device that utilizes wave power and is used in wave power generation systems and the like.

[Conventional technology]

Since Japan relies on foreign countries for energy resources, which are the basis of industrial development, there is an urgent need to commercialize ocean energy, which is non-polluting and inexhaustible, as a usable energy source.

Conventionally, this type of wave power generation system has an air chamber made of concrete or other material with an opening at the bottom so that seawater can freely enter. Electricity was generated by blowing out air from a nozzle installed in the engine and rotating a turbine.

[Problem to be solved by the invention]

However, in conventional wave power generation systems, the air compression process is completed by applying the wave height of one wave to one air chamber once. For this reason, irrespective of the shape and configuration of the air chamber, energy capture ends after the waves move up and down once, so the captured energy is extremely small.

Therefore, when the captured energy is used for power generation, the price per kilowatt becomes high, making it unsuitable for practical use.

An object of the present invention is to provide a compressed air production device using wave power that can increase the energy captured from waves by several times compared to the conventional method.

[Means to solve the problem]

In order to solve the above problems, a compressed air production device using wave force according to the present invention includes a dock-type structure having an opening in a direction that allows waves to be introduced into a quay or a beach, and A single air compression element or a plurality of air compression elements are arranged in the culvert and the air inside is compressed by the wave force guided into the dock type culvert, and the compressed air compressed by the air compression element is collected and stored. It consists of a storage tank.

[Effect]

The present invention operates a plurality of air compression elements installed in a dock-type culvert by the wave force guided into the culvert, so that a large amount of energy per wave is captured and absorbed. The extractable energy for the same wave height can be increased several times compared to conventional structures.

C Embodiment] The present invention will be described in detail below with reference to the drawings and the like.

Fig. 1 is a diagram showing an embodiment of a compressed air production device using wave force according to the present invention, Fig. 2 is a diagram showing a dock type structure used in the same embodiment device, and Fig. 3 FIG. 4 is a diagram showing a wave power generation system using the same embodiment device, and FIG. 4 is a diagram for explaining the trapped air amount of the same embodiment device in comparison with a conventional example.

In this embodiment, as shown in FIG. 1, four air compression elements A to D are installed in a dock-shaped culvert.

Air compression elements A and B have a cylindrical cylinder part with a head part serving as an upper lid, and the bottom end opening of the cylinder part is cut off diagonally toward the wave entry side, and the cylinder part is approximately Mounted vertically. The air compression elements C and D are obliquely attached at a predetermined inclination angle to the head portion serving as the upper lid so that the lower end opening of the cylindrical cylinder portion faces the wave entry side.

Dock-type culverts are installed in a direction that allows waves to be introduced to quays or beaches in order to increase wave power, and are deep enough to make full use of the waves and have a volume that can accommodate multiple air compression elements. Make sure it's the right size.

As shown in Fig. 2, this dock-type culvert is constructed by cutting the seabed 3 and quay wall 13 to form a concave part, and filling the concave part with reinforced concrete or the like for side walls 2. A bottom portion 4 and a rear wall 6 are provided to form an installation chamber 7 in which each air compression element A to D is installed (FIG. 2A).

The width of the side wall 2 of this installation chamber 7 becomes narrower toward the top, and the uppermost end is the opening width W (Fig. 2D).
, the opening side of the installation chamber 7 is provided with a wave introduction floating door 14 that gradually becomes narrower in the wave introduction direction 15 (second
Figure C).

The wave introduction floating door 14 is a door installed at the entrance of the dock that can be opened and closed.
Therefore, in the event of a rainstorm, the wave introduction floating door 14 is closed to prevent seawater from entering the dock type structure.
Safety can be increased.

The upper side of the installation room 7 is the upper house 10. The work room 1, in which the work room 1 is surrounded by the sea side upper breakwater wall 11 and the upper home side wall 12, is wider than the installation room 7,
Both sides are working floor surfaces 5 (Fig. 2D).

This structure allows waves to be introduced into the dock-type culvert, allowing for safe design of the facility. In other words, the various facilities inside the dock type structure are 10. Since it is protected by the upper breakwater wall 11 and the quay wall 13, dangers during storms can be sufficiently avoided.

An air intake pipe 8 for sucking air and a compressed air feed pipe 9 for sending air compressed by each air compression element A to D are attached to the head portion of each air compression element A to D. (Figure 1A, Figure 1C).

The air intake pipe 8 is connected to the atmosphere via a check valve 18, as shown in FIG. The compressed air pipe 9 is connected to a storage tank 19 that collects and stores compressed air, and the pressure inside this storage tank 19 is displayed on a pressure gauge 20. The output port of the storage tank 19 is connected to a turbine 22 via a valve 21, and the compressed air sent from the storage tank 19 rotates the turbine 22, thereby driving a generator 23.

In this embodiment, by using a dock-type culvert, a plurality of (four in this embodiment) air compression elements A to D can be installed in the installation room 7 in the culvert. If waves with a wave height of H are introduced into the installation room 7, the wave height will also be H.
Activate each air compression element A-D. Therefore, the amount of air captured by each air compression element A to D is V, and the amount of air captured from one wave is 4XV. Therefore, the amount of trapped air is four times that of the conventional single pneumatic element Z.

In addition, when installed at an angle of 45 degrees like pneumatic pressure elements C and D, the amount of captured air is approximately 1.4 times that of pneumatic pressure elements A and B installed vertically. Become.

Therefore, all four elements of air compression elements A-D are 45
If installed at an angle, the captured air volume will be 1.4 V.
X 4 elements = 5.6V. In other words, it is possible to trap approximately five times as much air as in the case of only the conventional air compression element Z.

FIG. 5 is a diagram showing another embodiment of the compressed air production apparatus using wave force according to the present invention.

In this example, a dock-type structure similar to the previous example is used, but air compression elements E, F,
I changed G to a diaphragm type. Each air compression element E
An operation frame 17 is attached to -G via a link mechanism 16.

When waves are introduced from the approach direction 15, the diaphragms of each air compression element E-G are expanded and contracted by the operation frame 17.
Manufacture compressed air.

Without being limited to the embodiments described above, various modifications can be made, for example, air compression elements AD.

The number, size, inclination angle, etc. of E-G can be changed as appropriate depending on the installation location.

〔Effect of the invention〕

As explained in detail above, according to the present invention, since a plurality of air compression elements are arranged in the dock type culvert, each air compression element can be effectively actuated by one wave introduced into the culvert.
The energy captured by wave forces can be increased several times compared to conventional structures.

Therefore, if the captured energy were to be used for power generation, the power generation cost per unit watt would be reduced to a fraction of the conventional cost, making it fully practical. Therefore, compared to nuclear power generation and hydroelectric power generation, it can be used as non-polluting and inexhaustible energy, and is also highly safe.
It can generate electricity at low cost.

[Brief explanation of drawings]

Fig. 1 is a diagram showing an embodiment of a compressed air production device using wave force according to the present invention, Fig. 2 is a diagram showing a dock type structure used in the same embodiment device, and Fig. 3 4 is a diagram showing a wave power generation system using the same embodiment device, and FIG. 4 is a diagram for explaining the trapped air amount of the same embodiment device in comparison with a conventional example. FIG. 5 is a diagram showing another embodiment of the compressed air production apparatus using wave force according to the present invention.

Claims (1)

[Claims] A dock-type culvert provided with an opening in a direction that allows waves to be introduced to a quay or beach; and a single or multiple dock-type culvert arranged within said dock-type culvert to guide waves into said dock-type culvert. A compressed air production device that utilizes wave force and is comprised of an air compression element that compresses the air inside by force, and a storage tank that collects and stores the compressed air compressed by the air compression element.