JP2014214662A - Power generation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate stable electric power by efficiently increasing airflow.SOLUTION: A power generation system includes: a hollow housing that is formed so that an opening area is made large in an airflow direction from an airflow inlet toward an airflow outlet; air sending means that sends airflow to the vicinity of the airflow inlet; a rotor that is arranged inside the hollow housing in a rotatable manner; a plurality of rotation cylindrical bodies that are respectively arranged around a plurality of core shafts radially extending from the rotor, in a rotatable manner, and in the outer periphery in which a spiral projection is formed; driving means that rotates the plurality of rotation cylindrical bodies; and a dynamo that is connected to the rotor.

Description

  The present invention uses the wind lens effect and the Magnus effect to increase the wind force of the air flow sent from the air blowing means, and rotates the rotating body connected to the generator by the increased air flow to generate power. It relates to a power generation system. Specifically, the present invention relates to a hollow housing having a shape that exhibits a wind lens effect, a plurality of rotating cylinders configured to exhibit a Magnus effect, and a rotation in which a plurality of rotating cylinders are attached and coupled to a generator. The present invention relates to a power generation system including a body.

  Conventionally, large wind power generators using natural wind have been devised. However, a power generation device using natural wind may be destroyed by a sudden gust. This type of power generation device is becoming more and more medium-sized, but this medium-sized power generation device cannot cope with natural wind changes such as gusts or no wind.

  As the medium-sized power generation device, for example, a wind lens wind power generation device is proposed by Patent Literature 1 and the like, and a Magnus type wind power generation device is proposed by Patent Literature 2 and the like. These power generation devices are also power generation devices that utilize natural wind. The wind lens is a means for concentrating wind energy, and the wind lens wind power generator is a device that generates power using the wind lens effect, that is, the wind collecting effect.

  These medium-sized power generators also improve power generation efficiency in consideration of the amplification of airflow. Regarding the technology for increasing the power generation efficiency, Non-Patent Document 1 discloses the relationship between the shape of the hollow structure and the wind collecting effect. Specifically, when the inlet of the hollow structure is an enlarged type smaller than the outlet, the wind speed inside the hollow structure can be increased efficiently. Further, in the case of an enlarged type provided with a brim near the exit of the hollow structure, the wind speed inside the hollow structure can be accelerated.

  Although the power generation efficiency has been improved individually for the medium-sized power generators, the power generators with good power generation efficiency have not been provided for the small power generators that can be installed anywhere.

International Publication No. 2009/063599 JP 2009-2263 A

Takashi Toriya, 3 others, “Wind collection effect by hollow structure”, Japan Society of Fluid Mechanics, 2003, Nagare 22, p. 337-343

  However, the conventional apparatus uses the wind lens effect and the Magnus effect to increase the air flow sent from the blowing means, and rotates the rotating body connected to the generator by the increased air flow. There is no device that generates electricity, and no device has been provided that aims to generate electricity more efficiently and with stable power generation.

  In order to solve the above-described problem, an object of the present invention is to provide a power generation system capable of efficiently increasing the air flow and generating stable power.

In order to solve the above-described problem, a power generation system according to claim 1 of the present invention includes a hollow housing having an air inlet and an air outlet, a blowing means, a rotating body, a plurality of rotating cylindrical bodies, and a drive. Means and a generator. An air flow from the blowing means is sent into the hollow casing, and the plurality of rotating cylindrical bodies are rotated by the driving means within the hollow casing. The rotating body is rotated by the air flow accelerated in the hollow casing, and the generator is driven.
According to the power generation system of the first aspect, since the air flow from the blowing means is accelerated by the hollow casing and the rotating cylindrical body, stable electric power can be generated.

A power generation system according to a second aspect of the present invention is the power generation system according to the first aspect, wherein the hollow casing has a hollow shape extending downstream from an arrangement position of the rotating body in the air flow direction. The hollow-shaped body is characterized in that the diameter of the outer periphery thereof is formed so as to decrease in the air flow direction.
According to the power generation system of the second aspect, the wind speed in the vicinity of the rotating cylindrical body is increased by the hollow shape body, and the power generation efficiency can be improved.

A power generation system according to a third aspect of the present invention is the power generation system according to the first or second aspect, wherein the rotating cylindrical body is a position in the air flow direction, and the speed of the air flow is low. It is characterized by being placed at the maximum position.
According to the power generation system of the third aspect, since the rotating columnar body is disposed at a position where the airflow from the blowing means reaches the maximum wind speed, the rotating body is rotated at a more stable and high speed, and further efficiency. Power generation.

A power generation system according to a fourth aspect of the present invention is the power generation system according to the third aspect, wherein the hollow casing has air in the air flow direction at least downstream from the position where the rotating cylindrical body is disposed. It is characterized by having a flange that is formed so as to have a large opening area in the flow direction and that protrudes radially from the outer peripheral surface of the air outlet.
According to the power generation system of the fourth aspect, since the shape of the hollow casing is formed so that the wind pressure is reduced at the downstream side of the air outlet of the hollow casing, the air flow in the vicinity of the rotating cylinder is formed. Wind speed can be increased.

A power generation system according to a fifth aspect of the present invention is the power generation system according to any one of the first to fourth aspects, wherein the air flow inlet for introducing the air flow sent from the blower means and the air of the hollow casing are provided. An internal air flow path that is provided around the inflow opening and through which the air introduced from the air flow introduction port flows, an air blowing port, and an air flow that flows through the internal air flow path in a predetermined direction at the air blowing port. And a guide wall that guides the air flow so as to blow out.
According to the power generation system of the fifth aspect, the air flow from the air blowing means is blown out with a uniform air flow from the air blow-out port on the entire circumference in the vicinity of the air flow inlet of the hollow casing, and enters the inside of the hollow casing. It is sent. Thereby, a uniform airflow can be generated inside the hollow housing.

A power generation system according to a sixth aspect of the present invention is the power generation device according to the fifth aspect, wherein the volume of the internal air flow path increases as the distance away from the air flow inlet increases. An internal air flow path is formed, and the guide wall is formed so that the gap between the guide walls through which the air flow blows increases as the distance away from the air flow inlet of the guide wall increases. .
According to the power generation system of the sixth aspect, since the air flow from the air blowing means is blown out with a more uniform air flow from the air blowout port on the entire circumference in the vicinity of the air flow inlet of the hollow casing, It is possible to generate a more uniform air flow in the interior.

A power generation system according to a seventh aspect of the present invention is the power generation system according to the first aspect, wherein the blower fan has a double-blade shape.
According to the power generation system of the seventh aspect, the power generation system has a simple structure, and less initial power is used for the blower fan.

  The present invention includes a hollow casing and a plurality of rotating cylindrical bodies, whereby the air flow can be increased efficiently and stable power generation can be achieved.

It is a side sectional view showing the whole power generation system 1 composition concerning a 1st embodiment of the present invention. 4 is a side cross-sectional view showing a configuration in which support members 23 to 27 that support the hollow casing 80, the rotating body 120, and the devices 100 and 140 are fixed to the base 20 in the power generation system 1. FIG. FIG. 3 is an enlarged side view showing an air flow from an air blower 40 of the power generation system 1 through an internal air flow path 60 constituted by a case 2 and an air flow diffusion inner wall 61. It is the top view which looked at the rotary fan 42 of the air blower 40 in FIG. 3 from upper direction. It is the front view which looked at the air blower 40 and the internal air flow path 60 from the front by sectional drawing according to the DD line | wire of FIG. 3 is a side sectional view showing a detailed configuration of the case 2 and the hollow housing 80 of the power generation system 1. FIG. 4 is a side sectional view of case 2. FIG. 4 is a side view showing a lock claw portion 83 and the like for assembling the case 2 to the hollow housing 80. FIG. 2 is a side cross-sectional view showing a connection configuration from a rotating cylindrical body drive device 100 to a power generation device 140 in the power generation system 1. FIG. It is a front view which shows the detailed structure of the supporting member 24 seen from the A direction of FIG. It is sectional drawing according to the BB line of FIG. It is sectional drawing according to CC line of FIG. It is an expanded sectional view which shows the detailed structure of the rotating cylindrical body 120 seen from the A direction of FIG. It is sectional drawing which follows the EE line | wire of FIG. FIG. 3 is a diagram showing an air flow in the power generation system 1. It is a figure which shows the wiring with the electric power generating apparatus 140 of the electric power generation system 1, and another electric equipment. It is side sectional drawing which shows the whole structure of the electric power generation system 1 which concerns on 2nd Embodiment of this invention. It is sectional drawing according to the FF line of FIG. It is sectional drawing according to the GG line of FIG. It is sectional drawing according to the HH line of FIG. It is sectional drawing according to the JJ line of FIG. It is a figure which expands and shows the shape of a ventilation fan. It is a figure which shows the flow of an air flow, and the dimension of each part in the electric power generation system which concerns on 2nd Embodiment. It is a figure which shows the modification of the rotating cylindrical body 120 shown in FIG. It is a figure which shows the modification of the spiral cylinder 129 shown in FIG. It is a figure which shows the modification of the air blower.

[First Embodiment]
Hereinafter, a power generation system according to a first embodiment of the present invention will be described in detail with reference to the drawings.

<< Configuration of First Embodiment >>
FIG. 1 is a side sectional view showing the overall configuration of the power generation system, and FIG. 2 is a side sectional view showing a configuration in which a support member that supports the hollow casing and each drive unit is fixed to the base. 3 is an enlarged side view showing the air flow from the blower through the internal air flow path constituted by the case and the air flow diffusion inner wall, and FIG. 4 is a top view of the blower as viewed from above in FIG. 5 is a cross-sectional view taken along the line D-D of FIG. 3, and is a front view of the blower and the internal air flow path as viewed from the front. FIG. 6 is a side cross-sectional view showing the detailed configuration of the case and the hollow housing. 7 is a side sectional view of the case, FIG. 8 is a lock claw portion for assembling the case to the hollow housing, and FIG. 9 shows a connection configuration from the rotating cylindrical body driving device to the power generation device. FIG. 10 is a side sectional view, and FIG. 10 is a front view showing a detailed configuration of the support member as viewed from the direction A in FIG. 1 is a cross-sectional view taken along line BB in FIG. 1, FIG. 12 is a cross-sectional view taken along line CC in FIG. 1, and FIG. 13 shows a detailed configuration of the rotating cylindrical body viewed from the direction A in FIG. FIG. 14 is a cross-sectional view taken along the line EE of FIG. 13, FIG. 15 is a view showing the flow of air flow, and FIG. 16 is a wiring between the power generation device and other electric devices. FIG.

<Overall Configuration of First Embodiment>
The power generation system 1 shown in FIG. 1 includes a base 20, a blower 40, an internal air flow path 60, an air flow diffusion inner wall 61, a hollow casing 80, a rotary cylinder driving device 100, a rotary cylinder 120, and a power generation device 140. As a main component. The internal air flow path 60 is formed between the case 2 and the air flow diffusion inner wall 61, and is shown as internal air flow paths 60-U and 60-S in FIG.

(Configuration of base)
As shown in FIG. 2, the base 20 has a flat plate shape, and legs 21 and 22 are provided below the base 20. The feet are made of a high friction coefficient material, such as rubber or resin that is excellent in light resistance and chemical resistance, so that the members mounted on the base 20 do not move due to vibration or the like. Alternatively, a plurality of screws are fixed by screw tightening (not shown) or the like.
The support members 23 to 27 are respectively fixed to the upper surface of the base 20 with screws. A motor 41 for driving the blower 40 is fixed to the upper portion of the base 20 with screws, and the rotation axis of the drive motor of the rotary cylinder driving device 100 and the rotation axis of the rotary body 121 that supports the plurality of rotary cylinders 120. The support members 23 to 25 support the rotating cylinder driving device 100, the rotating body 121, and the power generation device 140 so that the rotation axis of the motor of the power generation device 140 is on the same line. The support members 26 and 27 support the hollow casing 80 so that the three rotation axes, the center line of the air flow diffusion inner wall 61, and the center line of the hollow casing 80 are the same.

(Structure of the blower)
As shown in FIG. 3, the motor 41 is fixed to the base 20 with screws. A rotary fan 42 is fixed to the rotating shaft of the motor 41. The columnar wall 3 is integrally formed with a part of the outer peripheral portion of the case 2, and the lower part thereof is open to take in air. The rotary fan 42 is accommodated inside the cylindrical wall 3. As shown in FIG. 1, the air flow diffusion inner wall 61 and the hollow housing 80 are integrated, and the boundary is a point P. The case 2 is assembled to the outer peripheral portion of the air flow diffusion inner wall 61, and its tip is press-fitted to the point P. The air flow M taken from below the cylindrical wall 3 fills the internal air flow path 60 which is a space formed by assembling the case 2 to the air flow diffusion inner wall 61 by the rotation of the rotary fan 42, The internal air flow path 60-S is pushed out in the direction of the air flow N1, and the upper internal air flow path 60-U is pushed out in the direction of the air flow N1-7. As shown in FIG. 5, the internal air flow path from the internal air flow path 60-S to the internal air flow path 60-U is air from the air flow N1-2 to the air flow N1-6 and the air flow N1-7. Charged by current. In FIG. 5, the symbol R is assigned to the right air flow, and the symbol L is assigned to the left air flow.
As shown in FIG. 4, the rotary fan 42 has a plurality of blades 43 in the top surface shape. Each blade 43 includes a rake portion 44 having a predetermined rake angle. The angle of the rake portion 44 is 5 ° to 20 °. When the rotary fan 42 is rotated in the rotation direction Q, the wind direction is in the direction of the air flow M due to the cylindrical wall 3 and the rake portion 44.
As shown in FIG. 3, the air flow M is in the direction of the air flow N1 in the lower part and in the direction of the air flow N1-7 in the upper part, and fills the internal air flow path 60-S to the internal air flow path 60-U. To do. The diameter of the fan 42 is set to a diameter from 250 mm to 350 mm.

(Air flow from the blower to the main unit)
As shown in FIG. 3, when the internal air flow path 60-S and the internal air flow path 60-U are compared, the volume of the internal air flow path 60-U is larger than that of the internal air flow path 60-S. From the path 60-S toward the internal air flow path 60-U, the volume of the internal air flow path increases smoothly on both the left and right sides.
As shown in FIG. 3, the airflow from the internal air flow path 60 is generated between the tip of the case 2 and the tip of the airflow diffusion inner wall 61, and as shown in FIG. To the air outlet 62-2. The sizes of the air blowing port 62-1 and the air blowing port 62-2 are smoothly increased on both the left and right sides from the air blowing port 62-1 to the air blowing port 62-2. The lowermost part of the air flow is the air flow N1, and on the right side, the air flow N1-2R changes to the air flow N1-7R, and on the left side, the air flow N1-2L changes to the air flow N1-7L. Further, a loop inner wall 4 is formed at the tip of the case 2, and an air flow from the air blowing port 62 is directed toward the air flow diffusion inner wall 61.
The change in the volume of the internal air flow path 60 and the change in the size of the air outlet 62 are to make the air flow pressure uniform between the location close to and away from the rotary fan 42. In the present embodiment, the air outlet 62-1 is set to 1 mm to 5 mm, and the air outlet 62-2 is set to 5 mm to 10 mm. As shown in FIG. 6, the external air inlet Y1 of the case 2 is 1000 mm to 1500 mm, the distance Y3 between the upper and lower P points is 1410 mm to 1460 mm, the diameter Y4 of the rotating cylinder 120 is 1400 mm, The depth X1 of the air flow diffusion inner wall 61 including a part of 2 is 700 mm to 800 mm. The shape of the air flow diffusion inner wall 61 is curved so that the diameter decreases toward the front (left direction in FIG. 6), and the curved and inclined angle α is near the point P of the air flow diffusion inner wall 61. The tip is 5 ° and the tip away from the point P has a continuous shape inclined at 70 °. A hollow housing 80 continues to the rear part of the air flow diffusion inner wall 61, and its shape is a hollow enlarged shape that expands toward the rear (right direction in FIG. 6). The inclination angle β of the enlarged shape is 3 ° to 4 °, and the depth X2 is 2000 mm to 2500 mm. As shown in FIG. 1, a flange 87 is formed at the rearmost portion of the hollow casing 80 so as to protrude vertically from the outer periphery of the hollow casing 80, and the protruding length Y2 is 200 mm to 300 mm.

(Assembly structure of the case to the hollow housing)
As shown in FIG. 7, the case 2 is formed with a plurality of lock holes 63 for tightly locking to the hollow housing 80.
As shown in FIGS. 8 and 1, the boundary between the air flow diffusion inner wall 61 and the hollow housing 80 is a point P, and the rotation center shaft 81 of the lock claw 83 is incorporated in the hollow housing 80 at the same point. ing. The spring 82 urges the lock claw 83 so that the lock claw 83 enters the lock hole 63 shown in FIG.

(Configuration from rotating cylinder drive motor to generator)
As shown by an arrow 128 in FIG. 9, a rotating cylinder driving device 100 is provided to rotate the spiral cylinder 129 of the rotating cylinder 120 to the left. The rotary cylinder driving device 100 includes a rotary cylinder driving motor 101. The rotary cylinder driving motor 101 is fixed to the recess 28 of the support member 23 with a screw (not shown) or the like. Furthermore, an enlarged member 84 is fixed to the lower portion of the recess 28 with a screw 29. The enlarged shape member 84 covers the entire rotary cylinder driving device 100 and is formed in a truncated cone shape with a small rear portion (right side portion in FIG. 9). When each vertical section between the enlarged shape member 84 and the hollow casing 80 is viewed 360 degrees, the shapes of the enlarged shape member 84 and the hollow casing 80 are such that each cross section expands toward the rear. Is formed. A one-way clutch 110 is disposed on the motor shaft 104 of the rotating cylinder driving motor 101, and one end of the shaft 105 of the large bevel gear 102 is engaged with the one-way clutch 110. The one-way clutch 110 transmits the rotational force of the rotary cylinder driving motor 101 in one direction. When a rotational force in the direction opposite to the direction of the arrow 128 is applied to the cylindrical body driving motor 101, the reverse rotation of the rotating cylindrical body driving motor 101 is prevented.
A bearing 103 is press-fitted into the center of the tip of the large bevel gear 102, and the large bevel gear 102 rotates together with the motor shaft 104 of the rotary cylinder driving motor 101 and the shaft 105 of the large bevel gear 102.
A bearing 30 is press-fitted into one upper end of the support member 24. A bearing 142 is press-fitted into one end of the power generation device cradle 141 and receives the rear portion of the shaft of the rotating body 121. A bearing 103 is disposed at the other end of the rotating body 121, and the rotating body 121 is supported at three locations of the bearing 103, the bearing 30, and the bearing 142.

The plurality of rotating cylindrical bodies 120 are arranged at positions separated from the position P shown in FIGS. 6 and 9 by a distance X3. In the present embodiment, the distance X3 is 0 mm to 30 mm. The plurality of rotating cylinders 120 are subjected to the maximum air flow V3.
A power generation device receiving surface 31 is integrally formed on the upper portion of the support member 25, and a power generation device receiving base 141 is fixed on the upper portion thereof. A bearing 142 is press-fitted into one end of the power generation device cradle 141 and receives the rear portion of the shaft of the rotating body 121. The rotary cylinder drive motor 101 and the power generation motor 146 are supported by the support members 23, 24, and 25 so that the axis Z from the output shaft of the rotary cylinder drive motor 101 to the rotation axis of the power generation motor 146 is on the same line. A low speed coupling 143 is fixed to the rear portion of the shaft of the rotating body 121. The low speed coupling 143 is connected to the high speed coupling 145 via the speed increaser 144, and the shaft of the generator motor 146 rotates at high speed.
The power generation device 140 is covered with a curved case 147, and a part of the narrowed portion 148 of the case 147 is fixed to the power generation device base 141 with a screw 149.
FIG. 10 is a front view of the A view shown in FIG. 1 and shows the detailed shape of the support member 24. FIG. 11 is a cross-sectional view taken along the line BB shown in FIG. 1 and shows details of the throttle portion 148 and the power generation device receiving surface 31. FIG. 12 is a cross-sectional view taken along the line C-C shown in FIG.

(Configuration of rotating cylinder)
A plurality of core shafts 122 are inserted into the rotating body 121 shown in FIG. Bearings 123 and 124 are press-fitted into the rotating body 121. The core shaft 122 rotates smoothly with both bearings, and is fixed to the rotating body 121 with a vertical stopper 125.
The plurality of small bevel gears 126 are fixed to the core shaft 122 with screws (not shown), and the plurality of small bevel gears 126 rotate counterclockwise in the direction of arrow 128 as the large bevel gear 102 rotates.
As shown in FIG. 14, the convex portion 127 of the core shaft 122 engages with the key groove 134 of the spiral cylinder 129. In order to cope with thermal expansion and the like, the stopper 130 provides a backlash of about 1 mm outside the rotating body 121, and the spiral cylinder 129 is stopped in the vertical direction. Due to the engagement between the key groove 134 and the convex portion 127, the rotation of the small bevel gear 126 is transmitted from the core shaft 122 to the spiral cylinder 129 as a left rotation in the direction of the arrow 128. The plurality of rotating cylindrical bodies 120 shown in FIG. 13 are rotated counterclockwise in the direction of the arrow 128 by the maximum air flow V3 shown in FIG. By this left rotation, lift is generated in the plurality of rotating cylinders 120, and this lift becomes rotation K of the rotating body 121.
A plurality of spiral ridges 131 are molded integrally with the spiral cylinder 129, and the lower extension 132 of the spiral continues from the lower part of the stopper 130 to the upper part of the bearing 123. A curved corner R133 is formed at the base of the spiral ridge 131 to maintain strength.

(Air flow of the entire device)
With reference to FIG. 15, the flow of the whole airflow of 1st Embodiment is demonstrated.
The air flow from the blower 40 is blown out at a high speed from the entire circumference including the air blowing port 62-1 and the air blowing port 62-2, and becomes an induced air flow V1. The induced air flow V1 flows at a high speed on the curved surface of the air flow diffusion inner wall 61, so that a negative pressure is generated in the vicinity of the loop inner wall 4 shown in FIG. Due to this negative pressure, a front air intake air flow V4 from the front external air flow V6 is drawn, and the air flow V1 and the air flow V4 are added by the Coanda effect (loop amplification effect) to be amplified as an air flow V3.
The hollow casing 80 following the point P has a hollow enlarged shape, and a flange 87 is integrally formed around the entire circumference at the rearmost part. Furthermore, an enlarged member 84 is fixed inside the hollow housing 80 with screws 29. Due to the three shaped objects of the hollow casing 80, the flange 87 and the enlarged shape member 84, the air flow after the air flow V3 is hollow by the exhaust air flow V2 and the rear intake air flow V5 from the side external air flow V0. A pressure drop region W is generated by a vortex generated at the rear portion of the housing 80 (right side in FIG. 15). The rotating cylindrical body 120 disposed at a position separated from the point P shown in FIG. 9 by the air flow in the hollow housing 80 increases in rotation, and the power generation device 140 obtains the maximum power generation amount.
The side external air flow V0 is a natural wind and is an air flow close to a wind speed of 0 m / sec. When the side external air flow V0 is detected by a sensor (not shown) that the wind speed is from 0 m / sec to 2 m / sec, the opening / closing door 86 opens manually or automatically as shown in FIG. The air flow V7 in the hollow casing 80 is discharged outside to compensate for the air flow V0.

<Electric Configuration of First Embodiment>
As shown in FIG. 16, a battery 152 is provided to rotate the motor 41 of the blower 40 and the rotating cylinder driving motor 101 of the rotating cylinder driving apparatus 100 shown in FIG. 2. The generator motor 146 of the power generator 140 shown in FIG. 9 rotates, and the generated power is used in the home power system 151 via the AC / DC converter 153. The surplus is stored in the battery 152. The power of the solar panel 150 is stored in the battery 152.

<< Operation and Action of First Embodiment >>
First, three effects of the air flow (Coanda effect, wind lens effect, and Magnus effect) will be described.

  The induced air flow V1 is attracted to the curved surface of the air flow diffusion inner wall 61 by the Coanda effect, and the wind speed of the air flow is increased. A negative pressure is generated in the vicinity of the loop inner wall 4 by the induced air flow V1, and the front drawing air flow V4 is drawn from the front external air flow V6. The airflow from the entire circumference of case 2 is amplified by adding airflow V1 and airflow V4 to airflow V3.

The wind lens effect allows the air flow to be concentrated by the following three shaped objects, and the maximum air flow V3 with the maximum wind speed is generated. The three shaped objects are the hollow casing 80, the flange 87, and the enlarged shape member 84. The air flow that has passed through the rotating cylindrical body 120 is exhausted and increased by the hollow casing 80 and the enlarged shape member 84 to become a discharged air flow V2. Further, by providing the flange 87, the side external air flow V0 is blocked and the back of the flange 87 becomes low pressure, and the rear intake air flow V5 is drawn from the side external air flow V0. A pressure drop region W is generated by the vortex generated at the rear of the hollow casing 80, and the wind speed of the maximum air flow V3 obtained by the Coanda effect is further increased. The rotating cylinder 120 obtains a rotational force further increased by the Coanda effect and the wind lens effect.
The front external airflow V6 and the side external airflow V0 are natural winds. Since the front external air flow V6 is generated by the air flow V1 even when the wind speed is 0 m / sec, the rear intake air flow V5 is reduced when the side external air flow V0 is close to the wind speed 0 m / sec. The air flow V7 in FIG. 15 supplements the side external air flow V0.

Next, the Magnus effect will be described.
The rotation of the rotating cylinder 120 placed in the vicinity of the distance X3 is rotated counterclockwise in the direction of the arrow 128 by the rotating cylinder driving device 100, and the plurality of spiral cylinders 129 including the spiral ridges 131 receive the lift force by the maximum air flow V3. , Rotation K occurs, and the rotating body 121 rotates.
The Magnus effect is a lift (a force to turn up and turn) that further increases the wind speed of the air flow received by the cylindrical object by rotating a cylindrical object such as the spiral cylinder 129 and hitting the air flow there. This is an effect to be generated.

A stable air flow blowing from the blower 40 will be described below.
In order to make the air flow from the air outlet 62 uniform. The opening size of the air outlet from the air outlet 62-1 to the air outlet 62-2 and the volume of the internal air channel 60 vary from the internal air channel 60-S to 60-U, and the blower 40 The air flow is blown out uniformly from the air outlet 62 in both the near and far locations. The air flow blown out from the air blowing port 62 increases the wind speed of the maximum air flow V <b> 3 by the Coanda effect, the wind lens effect, and the Magnus effect, and blows air to the plurality of rotating cylindrical bodies 120.

Next, power generation will be described. Due to the rotation of the motor 41 of the blower 40, the sent air flow becomes the maximum air flow V3 and increases the rotation speed of the rotating cylindrical body 120. On the other hand, a plurality of small bevel gears 126 are rotated by the rotation of the large bevel gear 102 accompanying the rotation of the rotary cylinder driving motor 101, and the core shaft 122 and the spiral cylinder 129 are rotated counterclockwise in the direction of the arrow 128. 120 rotates. Even if a reverse rotational force is applied to the large bevel gear 102 due to the acceleration of the rotary cylinder 120 by the maximum air flow V3, the one-way clutch 110 can prevent transmission of the reverse rotation to the rotary cylinder drive motor 101. ing.
The air flow diffusing inner wall 61, the hollow casing 80, the flange 87, and the expanding member 84 produce the maximum air flow V3, and the rotating cylinder 120 is arranged at the position where the maximum air flow V3 is generated, so that an efficient rotating cylinder. The rotational force of the body 120 is obtained, and the rotating body 121 rotates. The rear part of the shaft of the rotating body 121 is fixed to the low speed coupling 143 and connected to the high speed coupling 145 via the speed increaser 144, so that the shaft of the generator motor 146 rotates at high speed. The electric power obtained here is stored in the battery 152, and surplus electric power is AC converted by the AC / DC converter 153 and enters the household electric power system 151. Further, the electric power obtained by the solar panel 150 is stored in the battery 152.

  When the power generation system 1 is activated by a start button (not shown), the electric power stored in the battery 152 is supplied to the motor 41 of the blower 40 and the rotary cylinder driving motor 101, and the ventilation and the rotary cylinder 120 are supplied. Rotation of the rotating body 121 is generated by Magnus lift and power generation starts. The surplus power is converted by the AC / DC converter 153, enters the household power system 151, and is used in a house by door.

<Effects of First Embodiment>
The power generation amount in the power generation system 1 when the rotating cylindrical body 120 is rotated by the Coanda effect with the air flow sent from the blower 40 is calculated.
Paragraphs 0035, 0037, and 0040 of JP 2009-62987 A describe the blower assembly 100 as follows.
“Next, the characteristics of the nozzle 1 will be described with reference to FIGS. 3 and 4. The shape of the nozzle 1 is annular. In this embodiment, the diameter of the nozzle 1 is about 350 mm. It may have any desired diameter, for example a diameter of about 300 mm "(paragraph 0035).
“Thus, the motor 22 is activated and air is drawn into the blower assembly 100 via the air inlet 24. In a preferred embodiment, the air is about 20-30 liters per minute, preferably about 27 L / s (liters). The air flow is squeezed as it enters the mouth 12 and is further squeezed at the outlet 44 of the mouth 12. The restriction causes pressure in the blower assembly or system. The motor 22 creates an air flow through the nozzle 16 with a pressure of at least 400 kPa. "(Paragraph 0037).
“As a result of the increased and laminar flow of air flow, a continuous flow of air is directed from the nozzle 1 toward the user. In a preferred embodiment, the air released from the blower assembly 100 The mass flow rate is at least 450 L / s, preferably 600 L / s to 700 L / s, and the flow rate at a distance of up to three nozzle diameters (ie, about 1000 to 1200 mm) from the user is about 400 to 500 L. The speed of the total air flow is about 3-4 m / s (meters / second) "(paragraph 0040).
The contents described in the above paragraphs are summarized as follows.
The diameter of the nozzle 1 is about 350 mm.
The mass flow rate of the air released from the blower assembly 100 is at least 450 L / s, preferably 600 L / s to 700 L / s. For convenience of explanation, the average value of the mass flow rate of air is 650 L / s.
The flow rate at a distance of up to three nozzle diameters (i.e., about 1000 to 1200 mm) from the user is about 400 to 500 L / s. For convenience of explanation, the flow rate at an average distance of 1100 mm from the user is set to 450 L / s. The speed of the total air flow is about 3-4 m / s (meters / second). → The average value is 3.5 m / s.
The wind speed near the nozzle 1 is (650 L / s of the mass flow rate of the air discharged from the blower assembly 100 ÷ 450 L / s at the average distance of 1100 mm from the user) × 3.5 m / s = 5 m / s Become.
The motor 22 is activated and air is drawn into the blower assembly 100 through the air inlet 24. In a preferred embodiment, air is inhaled at a flow rate of about 20-30 liters per minute, preferably about 27 L / s (liters / second). For convenience of explanation, the average value of the flow rate is 25 L / s. The flow rate magnification due to the Coanda effect can be calculated as (450 L / s ÷ 25 L / s) = 18 times.
When the numerical values described in the above paragraphs are applied to the first embodiment, they are as follows.
The external air inlet of the first embodiment is 1250 mm, and the size magnification is 1250 mm / (diameter of nozzle 1) 350 mm = 3.57 times. The volume for obtaining the required pressure is raised to the third power to be 3.57 × 3 = 45.5 times. However, the distance from the user = (depth X1 of the air flow diffusion inner wall 61 including a part of the case 2) 1100 becomes 3927 mm when multiplied by 3.57, which is (average value of depth X1 of 750 mm + depth X2) of this embodiment. 2250 mm) = over 3000 mm.
Further, the average value of the air flow velocity 3.5 m / s is multiplied by 3.57 to 12.5 m / s, and (3927 m / 750 m) × 12.5 m / s = 65. The magnification is as follows because it becomes as fast as 5 m / s and results in damage to the equipment.
The air flow velocity and the distance from the case 2 are 1.5 times, and the air flow rate for obtaining the required pressure is raised to the third power to 3.3 times.
The distance 1100 mm is increased 1.5 times to 1650 mm, and the air flow rate 450 L / s is increased 3.3 times to 1485 L / s. The air flow velocity of 3.5 m / s at a distance of 1650 mm is multiplied by 1.5 to 5.25 m / s.
Air flow 650 L / s from case 2 is 3.3 times 2145 L / s, and air flow rate 5 m / s is 1.5 times 7.5 m / s.
The distance 1100 mm is multiplied by 1.5 to 1650 mm, but the wind speed near the actual P point position (750 mm) is calculated to be 7.6 m / s-((7.5 m / s-5.25 m / s) / ( 750 mm / 1650 mm)) = 6.58 m / s.
The rated power of the blower assembly 100 is considered to be 40 W of electric power written in the instruction manual of the fan that is actually sold as a product by Dyson Technology. The electric power used by the motor 41 of this embodiment is multiplied by 3.3 to 40 W × 3.3 = 132 W.
The power generation output is described as follows in paragraph 0059 of Japanese Patent No. 3682755, and Table 5 is described in paragraph 0060.
“Table 5 is a graph showing the relationship between the wind speed and the power generation output W of the Magnus type wind power generator A and the propeller type wind power generator in this example having a windmill diameter of 2 m” (paragraph 0059).
With reference to Table 5 described in Paragraph 0060, the wind speed and the power generation output are added to Table 5 to obtain Table 1 below.

The power generation output by the Coanda effect and the Magnus effect is 285 W from Table 1. However, the windmill diameter of the first embodiment is 1400 mm, the windmill diameter in Table 1 referred to is 2 m = 2000 mm, and the windmill diameter magnification is (1400/2000) = 0.7 times. The power generation output is (285 W × 0.7) = 199.5 W. The net output obtained by subtracting the power consumption 132 W of the fan motor is (199.5 W−132 W) × 24 hours = 1620 W = about 1.6 KW / day.
From FIG. 8 of Non-Patent Document 1, it is considered that the wind speed increases according to the L / D magnification due to the wind lens effect. When the L / D magnification is calculated for the first embodiment, L is an average value of 2250 mm because the depth X2 in FIG. 6 is 2000 mm to 2500 mm. D is 1464 mm. As a result, 2250/1464 = 1.53. 6.58 m / s × 1.53 times = 1.07 m / s wind speed.
The power generation output by the Coanda effect, the Magnus effect, and the wind lens effect is 930 W from Table 1. The power generation output of the first embodiment is (930 W × 0.7) = 651 W multiplied by the windmill diameter magnification 0.7. The net output obtained by subtracting the power consumption 132W of the motor 41 in the first embodiment is (651W−132W) × 24 hours = 12456W = about 12.4 KW / day.

[Second Embodiment]
A power generation system 1 according to a second embodiment of the present invention will be described in detail with reference to the drawings. In the second embodiment, the same components as those in the first embodiment will be described with the same numbers or symbols.

<< Configuration of Second Embodiment >>
FIG. 17 is a side cross-sectional view of the second embodiment in which a large fan is arranged on the front surface, and a rotary cylinder driving motor and a generator are arranged on the side surface of the hollow casing. FIG. FIG. 19 is a cross-sectional view taken along line GG shown in FIG. 17, FIG. 20 is a cross-sectional view taken along line H-H shown in FIG. 17, and FIG. 21 is shown in FIG. 22 is a cross-sectional view taken along line JJ, FIG. 22 is an enlarged view of the blower fan shown in FIG. 17, and FIG. 23 is a diagram showing the flow of air flow and the dimensions of each part in the power generation system according to the second embodiment.

<Overall Configuration of Second Embodiment>
The second embodiment is a power generation system in which a fan-shaped blower used in a DC motor fan is disposed in the forefront as shown in FIG. For example, a double green fan made by Barmuuda or a fan-shaped blower used for a dryer is made large, and it consumes very little power and can concentrate airflow.
The difference from the first embodiment is that a blower having a large fan is arranged on the front surface of the power generation system, and the rotary cylinder driving motor and the generator are arranged on the side surface of the hollow casing.
However, the rotating cylinder driving motor has the same configuration as that of the first embodiment, and there is no problem with the rotating cylinder driving apparatus 100 of FIG.

(Structure of the blower)
As shown in FIG. 17, the air blower 40 is arranged on the front surface of the power generation system, and a fan motor case 35 is provided so as to cover it. A support member 33 is fixed to the base 20 with screws 32.
A fan motor holder 34 for receiving the blower 40 is disposed above the support member 33. A large fan 45 is fixed to the shaft of the motor 41 of the blower 40.
A bearing 38 that receives the support shaft 37 of the bevel gear 102 is disposed on the right side of the rotating cylinder 120, and the bearing 38 is accommodated in the recess 39. A support member 36 configured integrally with the recess 39 is screwed to the base 20. In order to drive the large bevel gear 102, the large bevel gear drive worm shaft 109 is engaged with the large bevel gear 102.
In order to drive the power generation device 140, the power generation motor worm shaft 154 meshes with the rotating body 121.
FIG. 18 is a cross-sectional view taken along the line FF shown in FIG. 17. The medium fan 46 is disposed inside the large fan 45, and the blades have a double structure.
FIG. 19 is a cross-sectional view taken along line GG shown in FIG. 17. The rotating body 121 meshes with the worm shaft 154 for the generator motor, and the holder 70 and the holder 71 are screwed to the side surface of the hollow housing 80. The power generation device 140 is fixed to the holder 70.
FIG. 20 is a cross-sectional view taken along the line H-H shown in FIG. 17. The large bevel gear 102 meshes with the large bevel gear drive worm shaft 109, and a holder 68 screwed to the side surface of the hollow housing 80. It is fixed between the holder 69.
The rotary cylinder driving device 100 is fixed to the holder 68. A one-way clutch 110 is disposed between the rotary cylinder driving motor 101 and the bevel gear driving worm shaft 109.
FIG. 21 is a cross-sectional view taken along the line JJ shown in FIG. 17, and the enlarged shape member 85 is fixed to the support member 36 with screws.
FIG. 22 is an enlarged view of the blower fan shown in FIG. 17, in which a medium fan 46 is disposed inside the large fan 45 and the blades have a double structure. Both fans 45 and 46 are connected by a ring 47 and are integrally formed. A fan hole 48 is formed at the center.

(Configuration from rotating cylinder drive motor to generator)
As shown in FIG. 17, the rotating cylindrical body drive device 100 and the power generation device 140 are arranged on the outer side surface of the hollow housing 80 so as not to disturb the air flow.

(Structure of hollow housing)
As shown in FIG. 17, a neutral hollow body 64 different from that of the first embodiment is disposed at the front portion of the hollow housing 80. The neutral hollow body 64 has a hollow cylindrical shape and is integrally formed with the hollow housing 80. As shown in FIG. 23, the neutral hollow body 64 is a substantial external air inlet, the outer diameter Y5 of the large fan 45 is 1200 mm to 1400 mm, and the distance Y3 between the upper and lower P points is 1410 mm to 1460 mm. The diameter Y4 of the rotating cylindrical body 120 is 1400 mm. The depth X3 of the neutral hollow body 64 is 700 mm to 800 mm, and the depth X2 of the hollow housing 80 is 2000 mm to 2500 mm.

<< Operation and Action of Second Embodiment >>
The large fan 45 in FIG. 17 is arranged in parallel with the rotating cylindrical body 120. As shown in FIG. 14, the air flow flows to the spiral protrusion 131 to assist the rotation K of the rotating body 121. The entire blower 40 is fixed with screws 32.

<Effects of Second Embodiment>
The power generation amount in the power generation system when the rotating cylindrical body is rotated with the air flow sent from the blower is calculated.
A partial excerpt from Table 3 described in JP2011-256876A is shown as Table 2 below. In the second embodiment, the distance from the fan 45 shown in FIG. 17 to the rotating cylinder 120 is about 750 mm.
Paragraph 0047 of JP2011-256876A describes as follows.
“From the front of the axial flow fan 7, wind is gathered at a position 31 at a short distance of about 40 cm, and the reaction is changed to a motion 20 in which the wind is greatly diffused by the reaction of the wind gathered in one place.” (Paragraph 0047)
When proportionally calculating 40 centimeters described in the above paragraph for conversion to the second embodiment, (diameter of fan 45 of the second embodiment = 1300) / (diameter of axial fan 7 = 300) = 4.3 times, 40 cm at position 31 is 1720 mm in the second embodiment, and the position where the wind gathers in one place in the second embodiment is twice the distance of 750 mm from the fan 45 to the rotating cylinder 120. It becomes the above position.
The wind speed is calculated by creating the following Table 2 using a part of Table 3 described in paragraph 0049 of JP2011-256876A.

The front wind speed at a distance of 75 cm from the fan is 2.83 m / s. The fan diameter magnification is 4.3 times. In the second embodiment, the front wind speed at a distance of 75 cm from the fan 45 is (2.83 × 4.3 times) = 12.17 m / s. When the horizontal width is 25 times 4.3 times (250 × 2 (convert to diameter) × 4.3 times) = 2150 mm, the wind speed reaches the distance enough to cover the outer peripheral edge of the hollow casing 80 and the side reflection wind speed is increased. Taking into account, using the values in the row with a distance of 100 cm from the fan in Table 2, the average value of the horizontal wind speed of the horizontal width is (1.42 + 1.36) /2=1.39 m / s, which is the second implementation. The left and right side wind speeds in the form are (1.39 × 4.3 times) = 5.98 m / s.
The average value of the front wind speed and the left and right side wind speeds is (12.17 + 5.98) /2=9.1 m / s. This wind speed of 9.1 m / s is set as the wind speed corresponding to the rotating cylindrical body 120.
The power generation output is referred to Table 5 described in paragraph 0060 of Japanese Patent No. 3682755. The above wind speed and power generation output are added to the table to obtain the following Table 3.
The maximum electric power of the electric fan described in JP 2011-256876 A is considered to be the electric power used 17 W described in the instruction manual of the GreenFan 2 electric fan that is actually sold as a product by Barmuuda Co., Ltd. Multiplying (the diameter of the fan 45 of the second embodiment = 1300) / (the diameter of the axial fan 7 = 300) = 4.3 times requires (17 W × 4.3 times) = 73 W of electric power used.

The power generation output by the large fan wind power and Magnus effect is 700 W when the wind speed is 9.1 m / s from Table 3. The windmill diameter magnification is multiplied by 0.7 as in the first embodiment. (700 W × 0.7) = 490 W The net output obtained by subtracting the power consumption 73 W of the fan motor is (490 W−73 W) × 24 hours = 10008 W = about 10 kW / 1 day.
In the case of a wind speed of 13.9 m / s taking into account the wind lens effect, the power generation output is 2000 W or more. The power generation output in the second embodiment by the large fan wind force, the Magnus effect and the wind lens effect is multiplied by the windmill diameter magnification (2000 W × 0.7) = 1400 W. The net output obtained by subtracting the power consumption 73 W of the fan motor is (1400 W−73 W) × 24 hours = 31848 W = about 31.8 KW / day.

[Correspondence between Configurations of Present Invention and Embodiment]
The power generation system 1 is an example of the power generation system of the present invention. The hollow housing 80 is an example of the hollow housing of the present invention. The air blower 140 is an example of the air blowing means of the present invention. The rotating body 121 is an example of the rotating body of the present invention. The plurality of rotating cylinders 120 is an example of a plurality of rotating cylinders in the present invention. The rotating cylinder driving device 100 is an example of the driving means of the present invention. The enlarged shape member 84 is an example of the hollow shape body of the present invention. The cylindrical wall 3 is an example of the air inlet of the present invention. The internal air flow paths 60, 60-S, 60-U are examples of the internal air flow path of the present invention. The loop inner wall 4 is an example of the guide wall of the present invention.

[Modification]
The embodiment of the present invention has been described above, but various modifications can be made by those skilled in the art without departing from the spirit of the present invention.
A power generation system according to a modification of the present invention will be described in detail with reference to the drawings.

The configuration shown in FIG. 24 is the same as the configuration shown in FIG. 13 in the basic configuration, but the number of rotating cylindrical bodies 120 is three. If the maximum air flow V3 is the same, the rotational speed of the rotating body 121 is small, and the durability of the parts is improved.
Even if the rotational speed of the rotary fan 42 is reduced and the maximum air flow V3 is reduced, the durability of the parts is improved.
By reducing the rotation of the rotary cylinder driving motor 101 and reducing the rotation speed of the rotary cylinder 120 shown in FIG. 13, the rotation of the rotary body 121 is also reduced, and the durability is improved.

The configuration shown in FIG. 25 is another plan of the configuration shown in FIG. 14, and since there is no extreme convex portion such as the spiral ridge 131, the entire structure is strong and sufficient Magnus lift is generated at the concave arc portion 136.
The spiral cylinder 135 has a protruding portion 137 on its outer peripheral surface, and a concave arc portion 136 is smoothly formed therefrom, and is connected to the next protruding portion 137. As shown in FIG. 13, the extended lower portion 138 of the spiral extends from the lower portion of the fastener 130 to the upper portion of the bearing 123. The material of the spiral cylinder 135 is resin molding or metal extrusion material.

  The configuration shown in FIG. 26 is another plan of the configuration of the blower 40 shown in FIG. The blower fan 49 is a double fan employed in the second embodiment, and an air flow is guided upward from the blower fan 49.

DESCRIPTION OF SYMBOLS 1 Power generation system 2 Case 4 Loop inner wall 20 Base 40 Blower 42 Rotary fan 45 Large fan 60 Internal air flow path 61 Air flow diffusion inner wall 62 Air outlet 64 Neutral hollow body 80 Hollow housing 81 Lock claw rotation center 84 Enlarge Shape member 86 Hole with opening / closing door 100 Rotating cylinder driving device 101 Rotating cylinder driving motor 102 Large bevel gear 109 Worm shaft 120 for large bevel gear Rotating column 121 Rotating body 126 Small bevel gear 129 Spiral column 140 Power generation device 144 Acceleration 150 Solar panel 151 Home power system 152 Battery 153 AC / DC converter 154 Warm shaft for generator motor
V0 Side external air flow
V1 Induction air flow
V2 exhaust air flow
V3 Maximum air flow
V4 Front intake air flow
V5 Rear intake air flow
V6 Front external air flow

Claims (7)

A hollow housing having an air inlet and an air outlet and formed so that an opening area is increased in a flow direction of air from the air inlet to the air outlet;
A blowing means for sending an air flow in the vicinity of the air inlet;
A rotating body rotatably arranged inside the hollow housing;
A plurality of rotating cylindrical bodies that are rotatably arranged around a plurality of core shafts extending radially from the rotating body, and in which spiral ridges are formed on the outer periphery;
Driving means for rotating the plurality of rotating cylindrical bodies;
And a generator coupled to the rotating body. A hollow-shaped body that is disposed inside the hollow housing and extends downstream from the position where the rotating body is disposed in the air flow direction;
The power generation system according to claim 1, wherein the hollow shape body is formed so that a diameter of an outer periphery thereof is reduced in a flow direction of the air.   3. The power generation system according to claim 1, wherein the rotating cylindrical body is disposed at a position in the air flow direction within the hollow casing and at a position where an air flow speed becomes maximum. . The hollow housing is formed so that an opening area is increased in the air flow direction at least downstream from the arrangement position of the rotating cylindrical body in the air flow direction,
The said hollow housing | casing is an electric power generation system of Claim 3 which has a flange which protrudes in a radial direction from the outer peripheral surface of an air outflow port. An air flow inlet for introducing an air flow delivered from the blowing means;
An internal air flow path that is provided around the air inlet of the hollow housing and through which air introduced from the air inlet port flows;
The power generation system according to any one of claims 1 to 4, further comprising a guide wall that guides the air flow so that the air flow flowing through the internal air flow path is blown in a predetermined direction at the air inlet. The internal air flow path is formed so that the volume of the internal air flow path increases as the distance away from the air flow inlet of the internal air flow path increases.
The power generation system according to claim 5, wherein the guide wall is formed so that the gap between the guide walls from which the air flow blows increases as the distance away from the air flow introduction port of the guide wall increases.   The power generation system according to claim 1, wherein the blower unit has a double-blade fan.