JP2005226598A - Wind power generation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wind power generation system for reducing limitation of an installation place more than a propeller system, capable of expecting power generation of efficient larger output than a Savonius type, and capable of adding both the function capable of generating electric power even at windless time and the function of an advertisement tower. <P>SOLUTION: This wind power generation system uses an impeller 2 having a rotary shaft existing in the horizontal direction; has a support frame 3 for supporting this impeller, a rotary support mechanism part 4 for supporting the support frame 3 and capable of rotating this support frame in the horizontal direction and a support foundation part 5 for supporting this part; is provided with a vertical tail 6 on the leeward side of the support frame 3; forms a band plate-like wind guiding member 7 having the whole width dimension of an opening part of the support frame 3 at an angle of about 30 to 50 degrees in the vertical direction in a cross section of an end part of the support frame 3 so as to prevent wind in the lower directional half range of the impeller 2 in the windward side; uses a windmill in the form of being layered and arranged in a parallel state; enables photovoltaic power generation by attaching a light receiving part 10 of a solar battery to an upper outside surface of the support frame 3; and adds the function of the advertisement tower by applying a character to the vertical tail 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a wind turbine generator, and in particular, can receive wind while appropriately facing a change in wind direction using an impeller having a plate-like rotating blade and a rotating shaft in a horizontal direction. The present invention relates to a wind power generator of a wind receiving system that can increase the rotational force.

  Conventionally known propeller type, Savonius type, Darius type wind turbines and the like are known as wind power receiving methods. Each wind receiving method has its advantages and disadvantages when used. For example, the propeller type can be expected to generate a large power output by making the rotor blade longer and the diameter of the rotor larger. Because it is necessary to deal with the strong winds and the damage to the surroundings due to the breakage and scattering of the rotor blades must be taken into consideration, the installation location is limited, and those that are similar to the Savonius type and Darius type have a rotating shaft in the vertical direction Therefore, it is easy to generate electricity at a position that does not require too much height from the surface of the installation base, and there are relatively few installation places. However, depending on the rotational position of the rotor blades, the received wind acts as a resistance to rotation. Since the wind speed is different in the height direction even at the same point, it is difficult to say that the conversion of wind energy into rotational energy is efficient and it is difficult to expect large output due to enlargement.

  For this reason, the present inventor considers the pros and cons of each of the wind receiving methods, and proposes a new power generation method of “wind power generator (Japanese Patent Application No. 2003-101208)” and “wind power generator (Japanese Patent Application No. 2003-422296)”. Has already been filed. The purpose of the proposal is to use an impeller having rotating blades that receive wind on a plate-like surface and having a rotating shaft in the horizontal direction and supported at both ends of the rotating shaft, and the support structure of the impeller is above the support base. This makes it possible to generate power at a position that does not require too much height from the installation base surface so that it can be rotated in response to changes in the wind direction, and winds the lower half of the rotation range of the impeller on the windward side of the support frame. The rotational position of the rotor blades eliminates the resistance force caused by the wind force, increases the rotational force of the impeller, and enables efficient power generation. There are fewer installation places than the propeller type, and the output is more efficient and larger than the Savonius type etc. It is to provide a wind power generator that can be expected to generate electricity.

Moreover, although the said proposal can achieve the objective as it is, the importance of wind power generation increases, and the wind power generator with higher power generation efficiency is desired especially in the time of a weak wind. Moreover, since the cost-effective economic hurdle remains in order to spread the wind power generator, a wind generator capable of adding other functions is also desired.
Japanese Patent Application No. 2003-101208 Japanese Patent Application No. 2003-422296

  The most important problem to be solved by the present invention is that the large-scale propeller system has a limited installation location and is difficult to install on the roof of a building or the like. For this reason, it is a wind power generation device that has fewer installation locations than the propeller type and has a relatively high power generation efficiency compared to the Savonius type and can be expected to generate a large output, and further, functions and advertisements that can generate power even when there is no wind The object is to provide a wind power generation apparatus to which other functions such as a tower can be added.

  In order to achieve the above object, the wind turbine generator according to the present invention uses an impeller having three or more plate-like rotating blades radially projecting from the rotating shaft and having the rotating shaft in the horizontal direction. It has a frame-shaped support frame that supports both ends, a rotation support mechanism that can be connected and supported horizontally, and a support base that connects and supports the frame, and changes the wind direction on the leeward side of the support structure. In addition, a vertical tail is provided so that a specific surface of the support frame can be easily opposed, and the support is installed on the windward side of the support frame in such a way as to prevent wind in the lower half of the rotation range of the impeller. A strip-shaped member with the full width of the opening of the frame, and in a cross-sectional direction along the end of the support frame, in an angle in the range of about 30 to 50 degrees with respect to the vertical direction, and in a parallel state and height between the members Wind in a form in which a wind guide member provided with a common overlapping portion is provided The most important feature that is used.

  In addition, the light receiving part of the solar cell is attached to at least the upper outer surface of the support frame so that solar power can be generated. Furthermore, a character or a design is applied to the side surface portion or vertical tail of the support frame to add a function as an advertising tower.

  According to the present invention, it is possible to provide a wind turbine generator that can be expected to generate power with a relatively high power generation efficiency and higher output than a Savonius type or the like, with fewer installation places than the propeller type. For this reason, the propeller system can be installed easily on the rooftop of buildings, etc., where it has been difficult to install due to the possibility of damage and scattering of rotor blades, etc. It becomes like. Furthermore, it is possible to provide a wind power generation apparatus that can be added with a function capable of generating power even when there is no wind by solar power generation or a function added as an advertising tower.

  As the best mode of the wind power generator of the present invention, what is described below is considered. The form of the large frame of the windmill is a one-stage or two-stage form using one or two impellers. Usually, it is preferable to provide 4 to 6 rotor blades, and to provide a cross-section or a curved portion where the wind receiving efficiency of the blade is increased near the outer periphery. The support frame preferably has a substantially cylindrical shape in which the height / width as a dimensional ratio on the opening side is about 1/1 to 3 and the lateral width approximates the rotational diameter of the rotor blade. As the rotation support mechanism part, it is preferable to use a mechanism that is stable in strong winds and has a low frictional resistance and is easy to rotate. When the scale increases, it is preferable to provide an auxiliary rotation support mechanism part on the outer peripheral side as necessary. . The support foundation is fixed to the ground or building frame in a frame form that can reduce wind resistance using steel frames and is strong in strong winds. The vertical tail is preferably of a shape that ensures strength and is thin and lightweight, has many portions protruding from the upper part of the support frame, and can secure a larger wind receiving surface away from the rotating shaft. In general, it is appropriate to arrange 2 to 4 wind guide members. The generator has high power generation efficiency and is miniaturized as much as possible, and is preferably disposed on the lower lee side of the impeller so that useless opening dimensions of the support frame are not required. The rotation transmission mechanism that transmits the rotational force of the impeller to the generator is preferably a mechanism with a small transmission loss and low wind resistance. Then, a solar cell light-receiving part can be attached to the upper surface of the support frame so that solar power generation can be performed, and letters or designs can be added to the side surface or vertical tail of the support structure to add a function as an advertising tower. preferable.

  FIG. 1 is a cross-sectional view of one embodiment of the wind power generator of the present invention. 2 is a front view of the example of FIG. 1, and FIG. 3 is a side view of the example of FIG. FIG. 4 is a cross-sectional view of an example of a two-stage impeller. FIG. 5 is a cross-sectional view of an example in which the angle of the wind guide member of the example of FIG. 1 is changed from the middle. Hereinafter, a wind power generator according to the present invention will be described with reference to the drawings. In addition, about the code | symbol in the said figure, it describes in description of the following code | symbol.

  As shown in FIGS. 1 to 3, the wind turbine generator 1 according to the present invention uses an impeller 2 having plate-like rotating blades that project radially and a rotating shaft in a horizontal direction, and supports the impeller 2. It has a frame-shaped support frame 3, a rotation support mechanism part 4 that connects and supports the frame-like support frame 3, and a support base portion 5 that supports the frame support frame 3, and supports a change in wind direction on the leeward side of the support frame 3. A vertical tail 6 is provided to allow specific surfaces of the support frame 3 to easily face each other, and a windshield is formed on the windward side of the support frame 3 so that the lower half of the rotation range of the impeller 2 is generally windproof. Thus, the strip-shaped wind guide member 7 having the full width of the opening of the support frame 3 is parallel to the end of the support frame 3 at an angle in the range of about 30 to 50 degrees with respect to the vertical direction. In addition, a wind turbine having a configuration in which the members overlap with each other in height is used, and the impeller 2 is rotated. A power generator to generate power transmitted to the generator 9 by the rotational force transmission mechanism 8 forces. Then, if necessary, a solar cell light receiving portion is attached to the upper outer surface of the support frame 3 so that solar power can be generated. Although not shown, characters are attached to the side surface of the support frame 3 or the vertical tail 6. Add the function as an advertising tower by applying design and design.

  Moreover, as shown in FIG. 4, the wind power generator 1 of the present invention may have a two-stage impeller, and may have a further multi-stage as necessary. . And the wind power generator 1 of this invention may be made into the form which changed the angle from the middle, as shown in FIG. Hereinafter, main parts, devices and the like related to the wind power generator including other embodiments will be additionally described.

  The impeller 2 may normally have about 4 to 6 rotor blades and may be a flat plate. However, from the viewpoint of enhancing the wind receiving effect, it is preferable to provide a shape portion similar to a dogleg shape or a curved shape. In the character shape, it is preferable that the inner angle is about 100 to 150 degrees. The connecting method of the rotor blade and the rotating shaft is not limited as long as it can be integrated and the object of the present invention can be achieved. The material may be a metal such as iron or a high strength and high durability material such as high strength plastic, but is not limited as long as the object of the present invention can be achieved. Further, the impeller 2 is provided with a cut portion in which the intermediate portion of the rotor blade is reduced as much as possible in order to incorporate the rotation transmission mechanism 9 into the intermediate portion of the support frame 3, or the impeller 2 is connected. In some cases.

  The support frame 3 includes a main support part 3a having a support mechanism for supporting the impeller 2 by a main component and a thin plate-like side part 3b. Although the material according to the material described in the impeller 2 can be considered as a material, it will not be limited if the objective of this invention can be achieved. As a method for supporting the impeller 2, for example, a supporting method incorporating a mechanism similar to a ball bearing can be considered in accordance with a method commonly used for supporting a rotating shaft of an existing rotating machine, but the object of the present invention can be achieved. There is no limitation. A streak-like reinforcing member 3c is attached to the outer surface of the side portion 3b as necessary. Further, a wind increasing member 3d having an angle of about 30 degrees upward from the horizontal plane for increasing the amount of wind received that contributes to the rotational force of the impeller 2 may be attached to the windward tip of the upper surface of the side portion 3b. preferable. The size is not limited as long as the object of the present invention can be achieved, but the height / width as a dimensional ratio on the opening side is about 1/1 to 3 and the side width approximates the rotating diameter of the rotor blade. It is preferable to use a substantially cylindrical shape.

  The rotation support mechanism part 4 is fastened to the support frame 3 at the upper part and is tightly connected to the support base part 5 at the lower part, and is supported in consideration of not only the support from the lower side of the support structure 3 but also the horizontal direction and lifting prevention. Is built in. As a structure for enabling smooth rotation, for example, a mechanism similar to a ball bearing or a member whose frictional resistance is reduced by mixing polytetrafluoroethylene, graphite or the like with another plastic material is a sliding member. It is possible to use a mechanism that incorporates a mechanism that uses a lubricant such as oil or a mechanism that incorporates a lubricant such as oil, but achieves the object of the present invention by reducing frictional resistance and ensuring smooth rotation and upper support strength. It is not limited if possible. Further, when the scale becomes large, it is preferable to attach an auxiliary rotation mechanism portion 4a using a roller mechanism, a sliding member or the like to the outer peripheral side of the support frame 3 as necessary.

  The structure of the support base 5 is mainly a steel frame or a reinforced concrete structure, but is not limited. The specification is appropriately set depending on conditions such as a scale and an installation location. In particular, when it is installed on the roof of a building, it is preferable to consider weight reduction and reduction of wind receiving pressure. Further, the ground or building may be fixed to the frame portion 11 or the like by a method according to a method normally used in the current civil engineering construction work.

  The shape of the vertical tail 6 is not limited as long as the object of the present invention can be achieved. However, the vertical tail 6 has a small thickness and is light as much as possible while ensuring strength. A shape that can secure a larger surface is preferable. Although the material according to the material described in the impeller 2 can be considered as a material, it will not be limited if the objective of this invention can be achieved. Although there are parts that are directly fixed to the support frame 3, they are mainly fixed by welding or bolts via an auxiliary member, and the material and shape of the auxiliary member have strength, wind resistance, etc. It will be decided as appropriate.

The wind guide member 7 is formed on the windward side of the support frame 3 so as to prevent wind in the lower half of the rotation range of the impeller 2 so that the wind guide member 7 has a full width dimension of the opening of the support frame 3. The guide member 7 has a portion overlapping in parallel with each other at an angle in the range of about 30 to 50 degrees with respect to the vertical direction along the end of the support frame 3 and between the members in height. It is appropriate to arrange 2 to 4 sheets. Moreover, if the parallel state is maintained, it can also be set as the form which changed the angle from the middle. And the fixed to the support frame 3 is fixed through the board | plate material for connection by the appropriate number of places also in both ends and an intermediate part. Although the material according to the material described in the impeller 2 can be considered as a material, it will not be limited if the objective of this invention can be achieved.

  As the rotational force transmission mechanism 8, a transmission mechanism with minimal transmission loss of rotational force is used, and a mechanism using a gear, a belt, or the like is conceivable. However, the mechanism and the arrangement method are not limited as long as the object of the present invention can be achieved. The arrangement position may be arranged on a side portion of the support frame 3, but may be arranged at an intermediate portion of the support frame 3. Further, an appropriate speed change mechanism is incorporated as necessary.

  The generator 9 is not limited as long as it can be applied to the wind power generator 1, but is preferably as small as possible and having high power generation efficiency, and is preferably disposed near the center of the lower rear portion of the impeller 2. There is no limitation.

  The light receiving part 10 of the solar cell is preferably lightweight and has high power generation efficiency, and is mainly attached to the upper outer surface of the support frame 3. However, if necessary, the light receiving unit 10 can be disposed at a place where the side outer surface and the vertical tail 6 can be disposed. It is also preferable to additionally provide them. Moreover, the specification as a solar cell will not be limited if the objective of this invention can be achieved.

  Hydrogen gas for fuel cells that can be used as a global environment-friendly power generation device to replace thermal power generation, which is a cause of deterioration of the global environment such as global warming, and nuclear power generation, where safety remains an issue, and is expected in the future It can also be used for manufacturing by electrolysis.

Sectional drawing of one Example of the wind power generator of this invention Front view of the example of FIG. Side view of the example of FIG. 1 is a sectional view of an example in which the impeller of the example in FIG. Sectional drawing of the example which changed the angle of the wind guide member of the example of FIG. 1 from the middle

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Wind power generator 2 of this invention 2; Impeller 3; Support frame 3a; Main support part 3b of support frame; Wind-increasing member fixed to the upper windward tip 4; rotation support mechanism part 4a; auxiliary rotation support mechanism part 5; support base part 6; vertical tail 7; wind guide wind member 8; rotational force transmission mechanism 9; Generator 10; Photosensitive part 11 of solar cell 11; Ground surface or building frame part, etc.

Claims (3)

  An impeller with three or more plate-like rotor blades projecting radially from the rotating shaft and having the rotating shaft in the horizontal direction is used, and a frame-shaped support frame that supports both ends of the impeller is connected and supported horizontally. In order to make it possible for the specific surface of the support frame to easily face the change of the wind direction on the leeward side of the support frame, having a rotation support mechanism part that can rotate in the direction and a support base part that connects and supports it. This is a strip-shaped member with the full width of the opening of the support frame in such a manner as to prevent wind in the lower half of the rotation range of the impeller on the windward side of the support frame. Wind guidance arranged along the end of the support frame in a cross-sectional manner at an angle in the range of about 30 to 50 degrees with respect to the vertical direction and having a portion overlapping in height between members. A wind turbine generator using a wind turbine provided with a member   The wind power generator according to claim 1, wherein a solar cell light receiving portion is attached to at least an upper outer surface of the support frame so that solar power generation can be performed.   The wind power generator according to claim 1 or 2, wherein a character or design is applied to a side surface of the support frame or the vertical tail to add a function as an advertising tower.

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