JP3238187U - Ocean current power generation experimental equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ocean current power generation experimental device which helps understanding of ocean current power generation. SOLUTION: A marine current power generation experimental device 30 has two boat-shaped floating bodies 31 arranged in parallel directions, a generator 33 having a protruding rotation axis arranged in the middle of these floating bodies, and their rotation. A generator support 32 that fixes a generator to each of the floats so that the orientation of the shaft matches the orientation of the float, a turbine 37 mounted on the tip of the rotating shaft, and rotation of the turbine generates electricity. A detector for detecting the amount of power generated by the generator and a floating body support member 41 for supporting the two floating bodies from below are provided. In the generator, the turbine mounted on the rotating shaft is fixed to the float by a generator support so that the turbine is located at a position lower than the bottom of the float, and the float support member is of the float. The floating body is supported so as to form a space below the bottom that allows the turbine to rotate. [Selection diagram] Fig. 1

Description

The present invention relates to an experimental device used as a teaching material for primary and secondary education in order to help children / students who learn about marine current power generation understand.

In Japan, where resources are scarce and the energy self-sufficiency rate is low, "3E + S", that is, safety (Safety) is a major premise, but energy security (Energy Security), economic efficiency (Economic Efficiency), and environmental compatibility (Environment). It is required to realize a multi-layered energy supply structure that simultaneously achieves the above.

In Japan's school education, as practical research on renewable energy, solar power generation, wind power generation, and hydroelectric power generation are being promoted in various fields, and they are often taken up by the media and the media, and have a certain educational effect. ing.
However, with regard to other renewable energies, the current situation is that appropriate education and research have not been carried out.

Ocean current power generation, which is one of the renewable energies, is a method of generating electric power by rotating a turbine by ocean current. For example, in Patent Document 1 below, an ocean current power generation device installed in the sea in the state shown in FIG. 6 is described. It has been disclosed.
The marine current power generation device 1 includes a turbine 7 that rotates by the sea current, a pod (streamline type enclosure) 5 that rotatably supports the turbine 7, and a generator arranged in the pod that generates electricity by the rotation of the turbine 7. The marine current power generation device 1 is connected to a sinker (weight) 25 that also serves as a submarine repeater by a mooring line 27. The electric power generated by the generator 9 is sent to the sinker 25 which also serves as a submarine repeater by the transmission cable arranged along the mooring line 27, and is transmitted from the sinker 25 to the land.

In ocean current power generation, the turbine is rotated by a stable ocean current to generate electric power, so carbon dioxide, which is a greenhouse gas, is not generated, and there is little concern about fuel depletion and soaring prices. Also, unlike solar power generation and wind power generation, the flow velocity can be predicted, so stable power generation can be obtained regardless of the weather, season, day and night. Moreover, since the density of water is about 1000 times higher than the density of wind, a large amount of electric power can be taken out even if the flow is slow.

Japan is a maritime nation with the world's 6th largest exclusive economic zone (about 12 times the land area), and there is a large ocean current (Kuroshio) in the sea near Japan, and its energy resource potential is It is extremely huge.
For these reasons, the New Energy and Industrial Technology Development Organization (NEDO) has been conducting a long-term demonstration project for ocean current power generation systems since autumn 2019, and the momentum for commercialization of ocean current power generation is increasing.
Even in the field of education, a new description about marine current power generation has been added to the textbooks of junior high school technology and home economics (technical field) from 2021, and efforts are being made to raise the interest of children and students in marine power generation.

Japanese Unexamined Patent Publication No. 2016-151203

It is extremely important for children and students who will bear the future of Japan to be interested in renewable energy. Above all, when looking at the energy situation in Japan, children and students will be asked to generate electricity using ocean currents with great energy potential. It seems that it is especially necessary for Japan, which has scarce resources, to educate students to pay attention and deepen their understanding.

The present invention was created in consideration of such circumstances, and an object of the present invention is to provide an ocean current power generation experimental device that can be used in an educational field to help understanding of ocean current power generation.

(1) The ocean current power generation experimental device of the present invention has two boat-shaped floats arranged in parallel directions, a generator having a protruding rotation axis arranged in the middle of these floats, and its rotation. A generator support that fixes the generator to each of the floats so that the orientation of the shaft matches the orientation of the float, a turbine mounted on the tip of the rotating shaft, and a generator that generates electricity by the rotation of the turbine. It is equipped with a detector that detects the amount of power generated by the turbine and a floating body support member that supports the two floating bodies from below. The generator support fixes the generator to the float so that the turbine mounted on the rotating shaft of the generator rotates at a position lower than the bottom of the float, and the float support member. Supports the float so that a space is formed below the bottom of the float to allow rotation of the turbine.

(2) In the marine current power generation experimental device of (1), the detector comprises a wireless module that acquires data on the amount of power generated by the generator and wirelessly transmits it to the outside of the marine current power generation experimental device. The wirelessly transmitted data is received by a receiving device outside the ocean current power generation experimental device and displayed on the display device.

The ocean current power generation experimental device of the present invention can show the principle of ocean current power generation in an easy-to-understand manner in the field of education, and the children who participated in the experiment on the relationship between the speed of water flow, the shape of the turbine, and the amount of power generation. Can make students think.

The figure which shows the ocean current power generation experimental apparatus of this invention. A view of the device of FIG. 1 as viewed from diagonally below. The figure which shows the state of the experiment performed using the ocean current power generation experimental device of FIG. View of the ocean current power generation experimental device during the experiment from the direction of the water flow Diagram showing various turbines Diagram showing a conventional ocean current power generator

FIG. 1 shows the ocean current power generation experimental device 30 of the present invention. Further, FIG. 3 shows a state of an experiment conducted using the ocean current power generation experiment device 30, and the experiment is performed by arranging the ocean current power generation experiment device 30 in a water tank 50 having a water channel formed therein.

As shown in FIG. 1, the ocean current power generation experimental device 30 has a pair of boat-shaped floats 31 and 31 made of foamed plastic, and float fixtures 34 and 35 that fix the distance between the floats 31 and 31. , 36, a generator 33 that faces the same direction as the floats 31 and 31 between the floats 31 and 31, a generator support 32 and 32 that fixes the generator 33 to the floats 31 and 31, and a generator. A turbine 37 mounted on the rotating shaft at the tip of the 33, a cable 38 that outputs data indicating the amount of power generated by the generator 33 that generates electricity by the rotation of the turbine 37, a wireless module 39 that wirelessly transmits the data, and wireless It includes a substrate 40 that supports the module 39, and a floating body support member 41 that supports the floating bodies 31, 31. The floating body support member 41 is composed of plates 42, 42 that support the floating bodies 31, 31 and a fixing plate 43 to which the lower ends of the plates 42, 42 are fixed.

As shown in FIG. 2, the generator 33 including the turbine 37 is fixed to the float 31 by the generator support 32 so that the turbine rotates at a position lower than the bottom of the float 31.
Further, the floating body support member 41 supports the floating body 31 so that a space allowing the rotation of the turbine 37 is formed below the bottom of the floating body 31.

In FIG. 1, the wireless module 39 is arranged on the substrate 40 fixed to the floating body fixture 35, but the installation position of the wireless module 39 is not limited to that. The wireless module 39 may be placed on either float 31.

In FIG. 3, the fixing plate 43 constituting the floating body support member 41 of the ocean current power generation experimental device 30 is arranged on the bottom surface of the water channel in the water tank 50. FIG. 4 shows the depth of water in the waterway at this time.

In the experiment, a paddle-shaped plate 51 and a water flow pump are used to form a flow of water along the water channel.
When the turbine 37 is rotated by this water flow, the generator 33 generates electricity, and the voltage value data representing the amount of power generation is input to the wireless module 39.
In this embodiment, a TWELITE DIP manufactured by Mono Wireless Co., Ltd. is used as the wireless module 39.
The wireless module 39 reads the input data and transmits the data wirelessly.

On the other hand, outside the water tank 50, a personal computer 60 to which the wireless module 61 is connected by USB is arranged.
In this embodiment, a monostick (MONOSTICK) manufactured by Mono Wireless Co., Ltd. is used as the wireless module 61.
The wireless module 61 receives the wireless data transmitted from the wireless module 39 and sends it to the personal computer 60, and data indicating the amount of power generated by the generator 33 is displayed on the screen of the personal computer 60.

Children / students participating in the experiment can see the data displayed on the personal computer 60 and realize that electric power is generated from the water stream.
Further, by using this ocean current power generation experimental device 30, it is possible to investigate how the power generation amount of the generator 33 changes when the flow velocity of the water channel is changed.

Further, as shown in FIG. 5, a plurality of turbines 37 having different shapes are prepared and sequentially mounted on the rotating shafts of the generator 33 to show children / students how the shape of the turbine affects the amount of power generation. You can make sure.
Among the turbines shown in FIG. 5, when the three-bladed turbine was mounted on the generator 33, the amount of power generation was the largest.

Further, the amount of water stored in the water tank 50 can be adjusted to change the water depth distance of the turbine, and children / students can be made to investigate the relationship between the water depth of the turbine and the power generation amount of the generator 33.

Further, it is possible to change the installation angle of the floating body support member 41 installed in the water tank 50 to change the angle of the water flow with respect to the ocean current power generation experimental device 30, and to confirm how this angle affects the amount of power generation. ..

In this way, the ocean current power generation experimental device of the present invention can show children and students the principle of ocean current power generation in an easy-to-understand manner, and is a scientific approach to explore events from various angles through experiments on ocean current power generation. Can help you understand the need for.

In this embodiment, the floats 31 and 31 are molded from foamed plastic, but other materials may be used as long as they are materials that float on water.
Although the turbine is molded of resin, it may be molded of metal or the like.
Further, in the embodiment, the data of the amount of power generation is transmitted by using the wireless module, but it is also possible to transmit the data through the electric wire.

The ocean current power generation experimental device of the present invention can be widely used in educational sites, exhibition halls, etc. as teaching materials for children and students to understand ocean current power generation.

5 pods,
7 turbine,
9 generator,
25 sinkers,
27 Mooring line,
30 Ocean Current Power Generation Experimental Equipment,
31 Floating body,
32 Generator support,
33 generator,
34 Floating Fixture,
35 Floating Fixture,
36 Floating Fixture,
37 turbine,
38 cable,
39 wireless module,
40 board,
41 Floating body support member,
42 boards,
43 fixing plate,
50 aquarium,
51 櫂 -shaped board,
60 personal computer,
61 wireless module,

Claims (2)

Two boat-shaped floats arranged in parallel,
A generator with a protruding axis of rotation, located in the middle of the float,
A generator support that fixes the generator to each of the floats so that the orientation of the rotation axis coincides with the orientation of the float.
The turbine mounted on the tip of the rotating shaft and
A detector that detects the amount of power generated by the generator that generates electricity by the rotation of the turbine, and
A floating body support member that supports each of the floating bodies from below,
Equipped with
The generator is fixed to the float by the generator support so that the turbine mounted on the rotating shaft rotates at a position lower than the bottom of the float.
The floating body support member supports the floating body so that a space that allows rotation of the turbine is formed below the bottom of the floating body.
Ocean current power generation experimental equipment. The ocean current power generation experimental device according to claim 1.
The detector is composed of a wireless module that acquires data on the amount of power generated by the generator and wirelessly transmits the data to the outside of the ocean current power generation experimental device, and the data wirelessly transmitted from the wireless module is the ocean current power generation experimental apparatus. A marine current power generation experimental device that is received by an external receiver and displayed on the display.

Images