JP2006046185A - Wind turbine generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable the construction of a wind turbine generator capable of reproducing a fishery field. <P>SOLUTION: In the wind turbine generator, a power generation tower 3 provided with a rotor blade 1 rotated by the wind, and a generator 2 in the upper aerial part is supported with a plurality of inclined support piles 4 and erected on the seabed 5, and an algae field forming bed 6 with the same inclination as that of the support piles 4 is constructed between the adjacent support piles 4. A narrow bed 6 (A) which has small vertical dimensions, and a wide bed 6 (B) which has large vertical dimensions are used for the algae field forming bed 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wind power generator constructed on water such as on the sea or on a lake.

  In general, the power generation efficiency of this type of power generation device increases as the size increases. For this reason, some wind power generators installed in recent years have rotor blades with a diameter of more than 100 m, and a sufficiently solid foundation that can withstand strong winds is required. In addition, it is preferable that the strong wind with a wind speed of 6 m / s or more always blows wind power generation from a viewpoint of economical efficiency.

  For this reason, there is a concept of installing the wind power generator on the open ocean where strong wind blows throughout the year (see, for example, Patent Document 1). It is inevitable to increase the size and size, and the cost increases. In addition, it has not been realized because it is far away from the power consumption area and there are problems such as high transmission costs.

  In other words, wind power generators are actually constructed in coastal areas such as coasts and lake shores, and in relatively shallow waters that are close to the coast and therefore have a depth of several to several tens of meters. The point where a strong wind of 6 m / s or more blows is limited.

  Moreover, seas with relatively shallow water generally have seaweed beds and are often good fishing grounds. In such places, the seabed is damaged by the installation of wind power generators, and the seaweed beds are lost. There is also a problem that the construction of wind power generators in a really favorable place cannot be realized due to strong opposition from fishermen concerned that the facility itself is hindering the fishery.

On the other hand, problems such as sludge accumulating on the seabed in the sea near the urban area and the loss of seaweed beds due to landfill construction have caused them to no longer function as fishing grounds.
JP-A-8-26184

  Therefore, instead of destroying the fishing ground, it is necessary to restore the lost seaweed ground and enable the construction of a wind power generator that leads to the regeneration of the fishing ground, which has been a problem to be solved.

  The present invention relates to a wind turbine generator that generates power by rotating a rotor of a generator by rotating blades that receive wind and is provided with a plurality of slopes in which a power generation tower having the rotor blades and a generator in the aerial part is fixed to the water bottom. The wind power generator is characterized in that it is supported and fixed by support piles, and a seaweed bed forming floor having substantially the same inclination as the support piles is installed between the support piles.

  The present invention supports and fixes a power generation tower equipped with a rotor blade and a generator in the aerial part by a plurality of inclined support piles fixed to the bottom of the water, and supports a seaweed bed forming floor having substantially the same inclination as the support piles between the support piles. Since it is a wind power generator installed on the ground, it is difficult to collapse even if strong stress acts in the lateral direction due to strong winds such as typhoons and gusts, and large transverse waves.

  In addition, brown algae such as kombu, wakame, hijiki, hondarawara and mozuku, red algae such as asakusanori, susbinori and boskenori, and algae in a range of about 5 to 30 m from the intertidal zone where green algae such as Aosa, Aonori and Iwatake are common. By installing the place formation floor, the seaweed can be efficiently proliferated on the foundation of the wind power generator.

  And small fish will come to the seafloor formation floor where seaweeds have flourished, and large fish that prey on the small fish will also migrate, so the foundation of the wind power generator is a good fishing reef Become. Therefore, it is easy to obtain the understanding of fishermen regarding the construction of wind power generators.

  A plurality of types of algae that are supported and fixed by a plurality of inclined support piles fixed to the bottom of the water with a rotating blade and a generator in the air, and the inclination is substantially the same as the support pile and the vertical dimensions are different. A wind turbine generator that lays a place-forming floor between support piles.

  A first embodiment of the present invention will be described with reference to FIGS. In the wind power generator 100 of the present invention, the power generation tower 3 includes a rotor blade 1 that rotates by receiving wind and a power generator 2 that includes a generator (not shown) having a rotor that rotates following the rotor blade 1. The power generation tower 3 is erected on the seabed 5 in a state of being supported by a plurality of inclined support piles 4 made of concrete pile or the like.

  And between the adjacent support piles 4, a seaweed bed forming floor 6 having the same inclination as the support piles 4 is installed. In the illustrated wind power generation apparatus 100, the vertical dimension of the seaweed bed forming floor 6 is small (hereinafter referred to as a narrow width) and the small width floor 6 (A) is large in the vertical direction (hereinafter referred to as a width). Two types of wide floor 6 (B) are installed. The narrow floor 6 (A) is 20 cm wide and the wide floor 6 (B) is 200 cm wide.

  That is, in the wind power generator 100, a narrow narrow floor between the adjacent support piles 4 (A) -4 (B) and between the support piles 4 (C) -4 (D). 6 (A) is installed between the adjacent support piles 4 (B) -4 (C) and between the support piles 4 (A) -4 (D). (B) is erected.

  In addition, when the wind power generator 100 is installed in a relatively shallow sea having a water depth of 30 m or less, the seaweed bed forming floor 6 is installed at an appropriate interval from the intertidal zone to the seabed, and is installed in a relatively deep sea exceeding the water depth of 30 m. When it is done, it is installed at an appropriate interval from the intertidal zone to a water depth of at least about 30 m.

  In addition, a hydrofoil 7 capable of causing upwelling flow in that portion is provided near the seabed 5 below the power generation tower 3 when activated. The hydrofoil 7 is provided such that the rotation of the rotary blade 1 that rotates in response to wind is directly transmitted via a gear, a rotary shaft, etc. (not shown). It is also possible to configure the motor to be rotated by a motor that is activated as power.

  In the wind power generator 100 of the present invention having the above-described configuration, the power generation tower 3 is supported and fixed by the plurality of inclined support piles 4 provided on the seabed 5. Even if a strong wind, a large transverse wave, etc. hits and a strong stress is applied in the lateral direction, the power generation tower 3 is difficult to collapse.

  Moreover, since the seaweed bed formation floor 6 is provided in the sea, various algae 8 flourish and a good seaweed bed is formed. That is, when the wind power generator 100 of the present invention is installed in a sea area where the seawater is beautiful and sunlight can sufficiently reach the seabed, a comb that is often seen in the natural world at a depth of about 5 to 30 m from the intertidal zone, Brown algae such as wakame, hijiki, hondarawara and mozuku, red algae such as cassava, sabbinori and bull henry, and green algae such as aosa, aonori and iwata grow on the surface of the algae bed formation floor 6.

  Then, crustaceans such as barnacles, oysters, crabs, etc. grow by attaching and itching, and fish lay eggs there, and small fish become resident. Then, large fish that prey on small fish will also migrate and function as artificial reefs.

  On the other hand, there is accumulation of sludge in the inland sea like Tokyo Bay and Ariake Sea, etc., and the water quality is not good, so sunlight does not reach the seabed, so there is no formation of seaweed beds and it is not a good fishing ground Even when the wind power generation apparatus 100 is installed in the sea area, the algae bed forming floor 6 is installed at an appropriate interval, so that the algae 8 grows and proliferates within the reach of sunlight, and the crustacean can grow. .

  And the fish will lay eggs there, and small fish will be there. In this way, large fish that prey on small fish will also migrate, and not only will it function as an artificial reef, but it will also be possible to purify water through the food chain, and gradually deepen into sunlight. Along with this, the formation of seaweed beds and the area where fish live are gradually expanded in the deeper direction.

  Moreover, since seawater can move through the opening part between the seaweed bed formation floors 6, the force which the underwater part of the wind power generator 100 receives from water becomes small, and a fish also has a seaweed bed formation floor. You can move freely through the gap between the six.

  In addition, by generating upwelling currents due to the operation of the hydrofoil 7, a sufficient amount of oxygen is also supplied to the seabed 5 to prevent the occurrence of blue tide due to lack of oxygen that may cause drowning of seafood. In addition, it is possible to supply enriched water near the seabed to seaweeds, barnacles, oysters, etc. adhering to the algae bed formation floor 6 and use them as nutrients for further production of marine resources and water purification. Can be promoted.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit described in the claims.

  For example, although four support piles 4 are provided around the power generation tower 3 in the first embodiment, the number of support piles 4 may be less than three or may be more than four. Moreover, it is not necessary that all the support piles 4 provided are provided at the same inclination.

  And also when the support pile 4 to install next is provided in a different inclination, the edge part of the longitudinal direction both sides of the seaweed bed formation floor 6 is provided in the inclination substantially the same as the inclination of the support pile 4 which opposes, respectively, and a longitudinal direction Adjustment of the different inclinations at both ends is performed 1) over the entire length in the longitudinal direction or through a twisted portion provided at a specific portion in the longitudinal direction, and 2) through an appropriate connecting member interposed in the central portion in the longitudinal direction. What is necessary is just to be suitably comprised by construction methods, such as performing.

  Moreover, the seaweed bed formation floor 6 may be constructed in a state where the small-width floor 6 (A) and the wide-width floor 6 (B) are mixed between a pair of adjacent support piles 4. It is not limited to two types, and many sizes and various shapes of the seaweed bed forming floor 6 may be used.

  It should be noted that it is advantageous to provide the algae bed forming floor 6 widely in terms of allowing the algae 8 to proliferate, but such algae bed forming floor 6 can be freely moved for abalone and turban shells that eat the algae 8. If abalone and turban shell are generated in large quantities, the algae 8 may be consumed.

  Therefore, in sea areas where abalone and turban shells are generated in large quantities, it is preferable to keep the algae bed formation floor 6 at a width of at most about 1 to 2 m. It is also possible to form a wider than 5m with emphasis on prosperity.

  Moreover, the seaweed bed forming floor 6 is formed using a punching metal or the like in which a large number of holes having a diameter of about 10 to 15 cm are formed, and the support piles 4 adjacent to each other are separated by about 10 to 15 cm in the vertical direction. It is also possible to construct between them so that large fish cannot enter the inside of the base of the wind power generator 100 so that the small fish is not preyed on by the large fish.

  In addition, the hydrofoil 7 is provided so that the gear can be switched, and reversely rotated at the time of a high tide, etc., to create a sedimentation flow, thereby widely diffusing organic mud accumulated in the lower part of the seaweed bed, It may be possible to supply eutrophic to the seabed.

It is explanatory drawing of the wind power generator of this invention. It is explanatory drawing of this invention wind power generator with which algae grows in a base part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotary blade 2 Power generation part 3 Power generation tower 4, 4 (A), 4 (B), 4 (C), 4 (D) Support pile 5 Seabed 6 Seaweed bed formation floor 6 (A) Narrow floor 6 (B) Wide Floor 7 Hydrofoil 8 Algae 100 Wind power generator

Claims (1)

  In a wind power generator that generates electricity by rotating the rotor of a generator with rotating blades that receive wind, supported by a plurality of inclined support piles that have a power generation tower with the rotor blades and the generator in the air fixed to the bottom of the water -A wind power generator characterized by being fixed and having a seaweed bed forming floor inclined substantially the same as the support pile between the support piles.

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