JPS6261794B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a wind turbine device.

There are various types of conventional wind turbine devices, but most of them are of the type in which the wind turbine is attached to a large steel tower or the like. Therefore, such a wind turbine device has the disadvantage that it is considerably difficult to take measures to protect the wind turbine from strong winds such as storms, gusts of wind, turbulence, etc., and to perform maintenance and inspection.

The purpose of the present invention is to solve the technical difficulties of such conventional wind turbine devices, to sufficiently protect the wind turbine from strong winds, turbulence, etc., to facilitate maintenance and inspection, and to enable the wind turbine to be easily maintained and inspected regardless of the wind direction. The purpose of the present invention is to provide a wind turbine device that can efficiently generate electricity regardless of the situation.

In order to achieve the above object, the present invention provides a structure for forming a large number of external air channels vertically and radially between a first roof and a first floor in a circular shape, which are arranged horizontally at predetermined intervals. The rotation axis of the wind turbine having a horizontal rotation axis is directed in the direction of the wind direction, so that the rotation axis of the wind turbine is oriented in the cylindrical space formed within the inner peripheral part of the toroidal outer air passage forming structure provided with the fixed guide wall. A wind turbine rotation mechanism unit equipped with a wind direction directing mechanism and a rotating mechanism (including a wind turbine, a rectifying blade, a guide blade, a variable pitch mechanism for the wind turbine and guide blades, a wind direction directing mechanism, etc.) and a wind turbine rotation connected to the wind turbine. It is characterized by being provided with a power conversion mechanism section that converts energy into other power.

Generally, when a cylindrical object is placed in a fluid flowing in one direction, positive pressure is generated on the front surface where the fluid hits, within a range of approximately 30 degrees to the left and right of the center line, negative pressure is generated on the sides and back, and The negative pressure is larger than the negative pressure on the back surface, so it tends to cause a backflow along the outer circumference, and in many cases, a Karman vortex is generated behind the back surface. Therefore, the inner periphery of the toroidal outer air passage forming structure section in which a large number of fixed guide walls for forming an outer air passage are provided vertically and radially between the annular first floor and the first roof. If a wind turbine rotation mechanism section that rotates freely according to the wind direction and a power conversion mechanism section that converts the wind turbine rotation energy connected to the wind turbine into other power are arranged in a cylindrical space formed inside the section. The wind with positive pressure introduced from the windward direction into the outer air passage forming structure is collected by the outer air passage forming fixed guide wall on the front side, reaches the wind turbine rotation mechanism, and is blown there. While rotating the wind turbine disposed in the wind turbine, the flow of wind having a negative pressure flows rearward from the side and back surfaces of the outer air passage forming structure. The boundary between this positive pressure part and negative pressure part is
In the case of laminar flow to an object with an inner and cylindrical outer surface, the angle is approximately 30 degrees on both sides from the front of the wind direction, and the pressure gradient in the vicinity is steep, but as in the present invention, In a case where the fluid passes through a cylindrical space having a fixed guide wall for forming a radial outer air passage at the periphery and a wind turbine rotation mechanism inside the inner cylindrical space. is not constant depending on fluid resistance, flow velocity, wind turbine load, etc., but it is generally wider than 30°. In addition, natural wind has three-dimensional eddies superimposed on the laminar flow in the main direction of the wind.
Although the wind direction at a certain location fluctuates irregularly around the main direction, the wind turbine rotation mechanism follows this change in wind direction. Therefore, positive pressure,
The boundaries of negative pressure are fixed and hard. In order to avoid this disturbance of the pressure gradient, which fluctuates in time and place, the outer periphery of the rotatable wind turbine rotation mechanism is set at a central angle of about 30° on both sides with reference to the wind turbine's horizontal rotation axis direction. ±10
An outer air passage having an arcuate cross section close to the inner circumferential surface of the outer air passage forming structure for blocking air inflow and outflow from the radial outer air passage forming fixed guide wall between 90° and 90° ± 10°. A pair of inner air passage forming wall columns are provided, each consisting of a blocking wall and an inner air passage forming wall connecting both side edges of the blocking wall within the wind turbine rotation mechanism, and a rectifier blade, a wind turbine guide blade, etc. are provided between them. If so, wind power can be effectively extracted. Note that, depending on the installation environmental conditions of the device of the present invention, it is desirable to appropriately select the outer diameter of the outer air passage forming structure to be at least 1.5 times its inner diameter.

Moreover, the above-mentioned straightening vanes and guide vanes are not necessarily necessary, and a straightening vane and a guide vane may be provided in each outer air passage of the annular outer air passage forming structure.

The present invention will be explained in detail below using examples.

Embodiment 1 FIGS. 1A and 1B are schematic explanatory diagrams of an embodiment of the present invention, and FIG.
It is an AA sectional view of.

A large number of fixed guide walls 4 for forming external air passages are provided vertically and radially at a predetermined center angle between an annular first floor 2 and a first roof 3 which are arranged horizontally at a predetermined interval. A wind turbine power generation mechanism section 6 consisting of a wind turbine 13 and a generator, which will be described later, is housed in a cylindrical space 5 formed inside the outer air passage forming structure section 1 provided with a wind turbine.

Here, the outer diameter of the first roof 3 is made larger than the outer diameter of the first floor 2 and protrudes from the upper end of the fixed guide wall 4 for forming an outer air passage to prevent rain and snow from entering the interior. It may also be designed to prevent intrusion. Furthermore, a door such as a shutter for closing part or all of the outer air passage 7 formed between adjacent fixed guide walls 4 is provided at the entrance of the outer air passage 7, or The door has a hinge that can be opened and closed to block the outside air passage 7, and prevents rain or snow from entering the outside air passage 7 during heavy rain or heavy snow. The outside air passage 7 may be shut off during maintenance and inspection.

The wind turbine power generating mechanism section 6 has an annular first floor 2 and a disc-shaped second floor 8 and a second roof 9, each having a diameter slightly smaller than the inner diameter of the first roof 3, and the first floor 2. arranged at the same intervals as the intervals of the first roof 3,
Between them is an inner air passage forming wall column 1 consisting of an outer air passage blocking wall 10 ₁ having an arcuate cross section and an inner air passage forming wall 10 ₂ connecting both side edges of the outer air passage blocking wall 10 1 on the inside _.
0 and a plurality of pillars 11, and a generator (not shown) to which the windmill 13 is connected so that the axis of rotation of the windmill 13 is horizontal is located between the two left and right wall pillars 10. Internally installed wind turbine power generation mechanism section 1
2 is supported by rectifying blades 14, guide blades 15, etc., and furthermore, the disk-shaped second floor 8 and the second roof 9 are supported by a rotating shaft 1 provided at the center of each.
6 and 17 are bearings 2 attached to support disks or support arms 18 and 19 extending toward the center from the first floor 2 and first roof 3 of the outer air passage forming structure 1;
0, 21, and is configured so that the entire structure can freely rotate within the cylindrical space 5 within the inner circumference of the outer air passage forming structure 1, and the rotation axis of the disc-shaped second roof 9. Extend 17 upwards and attach windmill 13 to it.
A wind direction blade 22 is attached that has the same direction as the rotation axis of the windmill 13, so that the windmill 13 always faces upwind. Here, the inner air passage forming wall column 10
are provided so as to cover a central angle between approximately 30°±10° and 90°±10° on both sides of the horizontal rotation axis of the wind turbine 13, and a fixed guide wall for forming an outer air passage between these The outer air passage 7 constituted by 4 is blocked by an inner air passage forming wall column 10 consisting of an arcuate outer air passage blocking wall 10 ₁ on the inner peripheral surface side and inner air passage forming walls 10 ₂ connecting both side edges thereof on the inside. do. This blocking effect produces an effect similar to that of blocking the corresponding inner peripheral portion of the blocked outer air passage 7, which promotes negative pressure in the lee of the outer air passage forming structure 1 and reduces vortex flow. . In addition, in order to increase the efficiency of the wind turbine 13, the wind turbine 13 may be
It is also possible to provide a variable pitch mechanism for the guide blades 15.

In such a wind turbine device, the outer air passage forming structure, the floor, roof, etc. of the wind turbine power generation mechanism consisting of the wind turbine and the generator can be constructed of reinforced concrete, iron plates, etc. that can withstand turbulence, gusts, strong winds, etc. Since a windmill or the like is housed inside, the windmill or the like is not affected by the Coriolis force caused by turbulence or sudden changes in wind direction, and can effectively generate electricity using wind power.

Embodiment 2 FIGS. 2A and 2B are schematic illustrations of another embodiment of the present invention, in which FIG. A is a sectional view taken along line DD in FIG. B, and FIG. In the figure, parts corresponding to those in FIG. 1 are designated by the same reference numerals.

In the figure, 1 is a toric body in which a large number of fixed guide walls 4 for forming outer air passages are provided vertically and radially between a horizontally arranged annular first floor 2 and a first roof 3. 5 is a cylindrical space formed within the inner peripheral part of the toroidal outer air passage forming structure 1; 6 is a disc-shaped second floor 8 and a second roof 9;
The two wall pillars 1 are connected by an inner air passage forming wall column ₁₀ consisting of two outer air passage blocking walls 101 and an inner air passage forming wall ₁₀₂ , and a plurality of supports 11.
The wind turbine 1 is
This is a wind turbine power generation mechanism section in which a wind turbine 13 and a generator are installed so that the rotation axis of the wind turbine 3 is horizontal. The structure up to this point is almost the same as that in FIG.
What differs from the one in FIG. 1 in this embodiment is the rotation mechanism of the wind turbine power generation mechanism section 6. In this case, a circular platform 24 on which a circular rail 23 is laid under the disk-shaped second floor 8 is used. At the same time, wheels 25 are attached to the periphery of the lower surface of the disc-shaped second floor 8 so as to match the circular rails 23, and wheels 25 are mounted on the upper surface of the disc-shaped second roof 9 to accommodate the rotation of the windmill 13. Wind direction blades 22 having an axial direction are provided so that the wind turbine power generating mechanism section 6 can freely rotate according to the wind direction.

Embodiment 3 In order to increase the output, a plurality of the wind turbine devices shown in FIG. 1 or 2 are stacked on top of each other, excluding the wind direction blades, and the toroidal outer air passage forming structure parts 1 are fixed to each other. At the same time, the wind turbine power generation mechanism sections 6 are also rotatably connected to each other, and the wind direction blades 22 may be provided only on the wind turbine power generation mechanism section 6 at the uppermost stage. FIG. 3 shows an apparatus in which the apparatuses shown in FIG. 1 are stacked one on top of the other.

Embodiment 4 FIG. 4 is a schematic explanatory diagram of another embodiment of the stacking method. In this embodiment, unlike other embodiments, the windmill 13 is not directly connected to a generator, but the rotation of the windmill 13 is directly connected to a generator or other rotating machine 27 placed below via a gear mechanism 26. Vertical rotation axis 28
This is what I tried to convey to you. In this case, it is also possible to separate and use one piece. Here, 6′
is the wind turbine rotation transmission mechanism.

In addition, in the device of the present invention, in order to orient the horizontal axis of rotation of the wind turbine in the upwind direction, a separately provided wind direction detector is used instead of using the wind direction blades as described above.
Directional control can also be performed using this signal.

The features of the present invention and some modifications in practical use will be described below.

1. Since the outer air passage forming structure can be constructed of reinforced concrete or steel plates, it can sufficiently protect the wind turbine power generation mechanism or wind turbine rotation mechanism installed inside from strong winds, gusts, turbulence, etc., and also protect the wind turbine. It can supply effective positive and negative pressure and rectify and converge the wind to enhance its effectiveness.

2. The wind turbine power generation mechanism or wind turbine rotation mechanism rotates lightly in accordance with the wind direction, and has high efficiency in converting wind power into power.

3 Wind turbine rotors, etc. generally undergo complex movements due to centrifugal force and hydrodynamic factors that accompany their rotation, and there are limits to their material strength, so there is a limit to increasing their size. There is. In contrast, the device of the present invention, as shown in FIGS. 3 and 4, can save installation space by stacking multiple wind turbines and combining the outputs of individual wind turbines. It is possible to do so, and the economic effects can also be increased by making use of wind from higher places than the ground.

4 In addition to the vertical fixed guide walls for forming external air channels, the outer air channel forming structure section adds horizontal wings to the air channels between the fixed guide walls, installs a net to prevent the intrusion of foreign objects, and inserts reinforcing materials. You may.

5 If an assembly structure is adopted in which the outer air passage forming structure is made in multiple parts and these parts are transported to the site and then assembled, it can be expected to be easier to install and transport in narrow spaces, and to benefit from mass production.

6. If the main direction of the outside air passage forming structure is in the direction of the wind at the installation location, or if there are wind obstacles nearby, it can be deformed to be more effective in the main direction. It is also possible to do so. Also,
This has the effect of gradually expanding the floor and roof of the radial outer air passage forming structure toward the periphery, thereby smoothing the flow into the air passage.

7. If all outer air channels are equipped with doors that block all or part of the outer air channels formed by the adjacent fixed guide walls of the outer air channel forming structure, heavy rain, heavy snow, and strong winds can prevent entry into the interior. prevention and helps prevent danger to workers during internal maintenance and inspection.

8 Wind turbines generally tend to emit wind noise, and it is difficult to prevent or insulate the noise. In contrast, the device of the present invention can be used for floors, roofs, fixed guide walls,
There is also a great advantage that sound can be significantly reduced by selecting the surface material, shape, etc. of the rectifier vanes, guide vanes, etc.

[Brief explanation of the drawing]

1 to 4 are schematic explanatory diagrams of a wind power generator according to the present invention. In the figure, 1...A toric outer air passage forming structure part, 2... Annular first floor, 3... Annular first roof, 4... Fixed guide wall for forming a radial outer air passage,
5... Cylindrical space, 6... Wind turbine power generation mechanism section, 6'
... Wind turbine rotation transmission mechanism section, 7 ... Outer air passage, 8 ...
... Disc-shaped second floor, 9... Disc-shaped second roof, 1
0 ₁ ... Outer air passage blocking wall, 10 ₂ ... Inner air passage forming wall, 10... Inner air passage forming wall pillar, 11... Support column, 12... Wind turbine generator part, 13... Wind turbine, 14
. . . Rectifier blade, 15 . Bearing supporting arm or disc extending toward the center from the first floor 2, 19... Arm or disc extending toward the center from the annular first roof 3, 20, 2
DESCRIPTION OF SYMBOLS 1... Bearing, 22... Wind vane, 23... Circular rail, 24... Circular stand, 25... Wheel, 26... Gear mechanism, 27... Generator, 28... Vertical rotating shaft.

Claims (1)

[Claims] 1. An annular first floor arranged horizontally at a predetermined interval and having a predetermined inner diameter and outer diameter;
a toric-shaped outer air passage forming structure having a predetermined number of fixed guide walls for forming an outer air passage arranged vertically and radially between the roof thereof; and the toric-shaped outer air passage. A cylindrical space formed within the inner periphery of the forming structure part, which has an outer diameter smaller than the outer diameter of the cylindrical space, and has an interval that is the same as the interval between the first floor and the first roof. and has a disk-shaped second floor and a second roof whose centers coincide with the central axis of the outer air passage forming structure, and the disk-shaped second floor and the second roof. and the roof of the second floor on their corresponding circumferences, and connect the outside air passage forming structure of the outside air passage forming structure symmetrically with respect to a perpendicular plane that includes the diameters of the second floor and the second roof. An outer air passage blocking wall having an arcuate cross section and arranged to block the outer air passage formed by the path forming fixed guide wall on the inner peripheral surface side of the outer air passage forming structure; and the outer air passage blocking wall. A pair of inner air passage forming wall columns comprising an inner air passage forming wall having a predetermined curved surface connecting both side edges of the wall on the inner surface side of the outer air passage blocking wall are connected to the second floor and the second roof. and further passing through the central axis of the toroidal outer air passage forming structure within the inner air passage formed between the pair of inner air passage forming wall pillars. One of the main structure parts consisting of a wind turbine having a horizontal rotation axis and a wind turbine power generation mechanism part in which a generator connected to the rotation axis of the wind turbine is arranged and fixed, or the main structure parts stacked coaxially. and one or more of the wind turbine power generating mechanism parts constituting the main structure part, either singly or integrally, and one or more of the outer air passage forming structure parts forming the main structure part. A rotation mechanism of the wind turbine power generation mechanism part provided so as to be rotatable about the central axis of the cylindrical space within the cylindrical space formed on the inner peripheral surface; and the wind turbine power generation mechanism. A wind turbine device comprising: a wind direction directing mechanism section for orienting a horizontal rotation axis direction of the wind turbine provided in the wind turbine power generation mechanism section in an upwind direction. 2 An annular first floor arranged horizontally at a predetermined interval and having a predetermined inner diameter and outer diameter;
a toric-shaped outer air passage forming structure having a predetermined number of fixed guide walls for forming an outer air passage arranged vertically and radially between the roof thereof; and the toric-shaped outer air passage. A cylindrical space formed within the inner periphery of the forming structure part, which has an outer diameter smaller than the outer diameter of the cylindrical space, and has an interval that is the same as the interval between the first floor and the first roof. and has a disk-shaped second floor and a second roof whose centers coincide with the central axis of the outer air passage forming structure, and the disk-shaped second floor and the second roof. and the roof of the second floor on their corresponding circumferences, and connect the outside air passage forming structure of the outside air passage forming structure symmetrically with respect to a perpendicular plane that includes the diameters of the second floor and the second roof. An outer air passage blocking wall having an arcuate cross section and arranged to block the outer air passage formed by the path forming fixed guide wall on the inner peripheral surface side of the outer air passage forming structure; and the outer air passage blocking wall. A pair of inner air passage forming wall columns comprising an inner air passage forming wall having a predetermined curved surface connecting both side edges of the wall on the inner surface side of the outer air passage blocking wall are connected to the second floor and the second roof. and further passing through the central axis of the toroidal outer air passage forming structure within the inner air passage formed between the pair of inner air passage forming wall pillars. A wind turbine having a horizontal rotation axis is disposed, and the horizontal rotation axis of the wind turbine coincides with the central axis of the cylindrical space, and a vertical rotation axis and a wind turbine rotation transmission mechanism part are connected via a rotation transmission mechanism. One or more of the main structure parts that are stacked coaxially and share the vertical rotation axis, and one or more of the wind turbine rotation transmission mechanism parts that constitute the main structure part. within the cylindrical space formed within the inner circumferential surface of one or more of the outer air passage forming structures constituting the main structure, with the central axis of the cylindrical space being the center. a rotation mechanism of the wind turbine rotation transmission mechanism provided so as to be able to rotate as a rotation mechanism; and a power that converts rotational energy into other power connected to the vertical rotation shaft coming out of the wind turbine rotation transmission mechanism. A wind turbine device comprising: a conversion mechanism section; and a wind direction directing mechanism section for orienting the horizontal rotation axis of the wind turbine provided in the wind turbine rotation mechanism section in an upwind direction.