CA3074294A1 - Foldable wind-driven power plant - Google Patents
Foldable wind-driven power plant Download PDFInfo
- Publication number
- CA3074294A1 CA3074294A1 CA3074294A CA3074294A CA3074294A1 CA 3074294 A1 CA3074294 A1 CA 3074294A1 CA 3074294 A CA3074294 A CA 3074294A CA 3074294 A CA3074294 A CA 3074294A CA 3074294 A1 CA3074294 A1 CA 3074294A1
- Authority
- CA
- Canada
- Prior art keywords
- stand
- rotation
- wing
- winch
- fixed base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 210000003746 feather Anatomy 0.000 claims abstract description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
- E04H12/187—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic with hinged sections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/91—Mounting on supporting structures or systems on a stationary structure
- F05B2240/915—Mounting on supporting structures or systems on a stationary structure which is vertically adjustable
- F05B2240/9152—Mounting on supporting structures or systems on a stationary structure which is vertically adjustable by being hinged
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wind Motors (AREA)
Abstract
A foldable wind-driven power plant comprises a stand, having a wind generator installed in its upper part, mounted on a main support and configured to tilt into a horizontal position and lift into a vertical position, and a main winch, where the plant is equipped with an auxiliary winch mounted on an additional support provided with a seat and installed on a separate foundation. The main support consists of a fixed base and a rotary part installed thereon with the possibility to turn in the horizontal plane around a vertical axis. The base enables the downwind rotation of the stand mounted on the rotary part and embodied in the form of a vertical wing realized on the basis of a spatial frame, the elements of which are only subjected to compression or tension, and are covered with a shell. The cross-section of the wing has a symmetrical aerodynamic profile, while the vertical axis of rotation of the stand is located in front of the aerodynamic focus of the wing, thus, enabling the stand to feather downwind. Furthermore, the lower part of the stand contains a hinge, which enables the rotation of the stand around the horizontal axis and divides the stand post into a non-tilting beam containing rope transfer blocks of the main winch mounted on the fixed base, which are distant from the axis of rotation, and a tilting-lifting part containing in its section the blocks for securing such ropes, which are distant from the hinge. Furthermore, the upper part of the stand contains the point of attachment of the auxiliary winch rope.
Description
. .
FOLDABLE WIND-DRIVEN POWER PLANT
Field of the invention The invention relates to wind power engineering and can be used when designing wind generators to produce electrical or thermal energy.
Description of the prior art The prior art includes a solution (RU 55887 U1 dated 24-Nov-2005) describing a wind-driven power installation comprising a nacelle, which contains a wind wheel and is mounted on a mast using four cables, wherein one of such cables is provided with a pull-rod (intended for creating a lever when lifting the mast).
However, the proposed solution is applicable to small wind-driven power installations and is not suitable for lifting and lowering masts of the medium and high-capacity installations.
Summary of the invention The objective of the invention is to create a design of the medium and high-capacity wind-driven power plants capable of lifting and lowering the mast and system assembly without the use of special high-capacity cranes. The technical result would offer an expansion of technological and operational capabilities of a wind-driven power plant.
The above objective is solved by the fact that the foldable wind-driven power plant comprises a stand, having a wind generator installed in its upper part, which is mounted on a main support and configured to tilt into a horizontal position and lift into a vertical position, and a main winch, wherein the plant is equipped with an auxiliary winch mounted on an additional support provided with a seat and
FOLDABLE WIND-DRIVEN POWER PLANT
Field of the invention The invention relates to wind power engineering and can be used when designing wind generators to produce electrical or thermal energy.
Description of the prior art The prior art includes a solution (RU 55887 U1 dated 24-Nov-2005) describing a wind-driven power installation comprising a nacelle, which contains a wind wheel and is mounted on a mast using four cables, wherein one of such cables is provided with a pull-rod (intended for creating a lever when lifting the mast).
However, the proposed solution is applicable to small wind-driven power installations and is not suitable for lifting and lowering masts of the medium and high-capacity installations.
Summary of the invention The objective of the invention is to create a design of the medium and high-capacity wind-driven power plants capable of lifting and lowering the mast and system assembly without the use of special high-capacity cranes. The technical result would offer an expansion of technological and operational capabilities of a wind-driven power plant.
The above objective is solved by the fact that the foldable wind-driven power plant comprises a stand, having a wind generator installed in its upper part, which is mounted on a main support and configured to tilt into a horizontal position and lift into a vertical position, and a main winch, wherein the plant is equipped with an auxiliary winch mounted on an additional support provided with a seat and
2 installed on a separate foundation. Furthermore, the main support consists of a fixed base and a rotary part installed thereon with the possibility to turn in the horizontal plane around a vertical axis. Said base enables the downwind rotation of the stand mounted on the rotary part and embodied in the form of a vertical wing realized on the basis of a spatial frame, the elements of which are only subjected to compression or tension, and are covered with a shell. The cross-section of said wing has a symmetrical aerodynamic profile, while the vertical axis of rotation of the stand is located in front of the aerodynamic focus of the wing, thus, enabling the stand to feather downwind. Furthermore, the lower part of the stand contains a hinge, which enables the rotation of the stand around the horizontal axis and divides the stand post into a non-tilting beam containing rope transfer blocks of the main winch mounted on the fixed base, which are distant from the axis of rotation, and a tilting-lifting part containing in its section the blocks for securing such ropes, which are distant from said hinge. Furthermore, the upper part of the stand contains the point of attachment of the auxiliary winch rope.
Preferably, the fixed base of the main support is embodied in the form of a star-shaped structure mounted on the foundation and provided with at least three legs, one of which is equipped with the main winch, while located in the center of the fixed base are the fixed part of the hinge, facilitating rotation of the stand around the vertical axis, and the rotary part of the main support along with the mechanisms facilitating such rotation.
Description of the drawings The invention is illustrated by the drawings showing a general view of the wind-driven power plant in the upright (Fig. 1) and horizontal (Fig. 2) positions.
Figure 3 shows a frame-based design of the stand.
Preferably, the fixed base of the main support is embodied in the form of a star-shaped structure mounted on the foundation and provided with at least three legs, one of which is equipped with the main winch, while located in the center of the fixed base are the fixed part of the hinge, facilitating rotation of the stand around the vertical axis, and the rotary part of the main support along with the mechanisms facilitating such rotation.
Description of the drawings The invention is illustrated by the drawings showing a general view of the wind-driven power plant in the upright (Fig. 1) and horizontal (Fig. 2) positions.
Figure 3 shows a frame-based design of the stand.
3 Description of a preferred embodiment of the invention The wind-driven power plant comprises a fixed base (1) and a rotary part (2) mounted thereon, which contains a hinge, facilitating rotation of the stand in the horizontal plane (around the vertical axis), and is structurally combined with a beam (3) and hinges (4) facilitating rotation of the stand in the vertical plane (around horizontal axis). Stand (5) has streamlined shape in the form of a wing. It is assembled from sections and is hingedly attached to the rotary part (2). A
nacelle with wind generator (6) (electrical or thermal power generator) and blades (8) attached to rotor (7) is installed at the top of the stand.
An additional support provided with seat (11) and auxiliary winch (10) are mounted on a separate foundation. The auxiliary winch is intended for holding and gently turning the stand during the final portion of the lifting path, after the center of gravity of stand (5) has passed hinge (4), and also for supporting the initial stage of lowering stand (5) until the center of gravity thereof passes hinge (4).
The stand is embodied in the form of a wing having a symmetrical aerodynamic profile, realized in the form of a spatial frame, the elements of which are only subjected to compression or tension and are covered with a shell. Furthermore, the axis of rotation in the horizontal plane is positioned at a certain distance in front of the aerodynamic focus of the wing relative to the wind direction.
Such shape of the stand allows for its use as a wind vane to rotate the installation in the wind direction.
The frame-based design of the stand (Fig. 3) allows for a significant weight reduction of the lifting part of the wind-driven power plant.
For example, at a weight of about 100 tons, it is possible to assemble a structure, which is 150 m tall. Such design also allows lifting and lowering the mast
nacelle with wind generator (6) (electrical or thermal power generator) and blades (8) attached to rotor (7) is installed at the top of the stand.
An additional support provided with seat (11) and auxiliary winch (10) are mounted on a separate foundation. The auxiliary winch is intended for holding and gently turning the stand during the final portion of the lifting path, after the center of gravity of stand (5) has passed hinge (4), and also for supporting the initial stage of lowering stand (5) until the center of gravity thereof passes hinge (4).
The stand is embodied in the form of a wing having a symmetrical aerodynamic profile, realized in the form of a spatial frame, the elements of which are only subjected to compression or tension and are covered with a shell. Furthermore, the axis of rotation in the horizontal plane is positioned at a certain distance in front of the aerodynamic focus of the wing relative to the wind direction.
Such shape of the stand allows for its use as a wind vane to rotate the installation in the wind direction.
The frame-based design of the stand (Fig. 3) allows for a significant weight reduction of the lifting part of the wind-driven power plant.
For example, at a weight of about 100 tons, it is possible to assemble a structure, which is 150 m tall. Such design also allows lifting and lowering the mast
4 horizontally without the use of special high-capacity cranes. Even in remote inaccessible locations.
The streamlined shape of the stand having a symmetrical aerodynamic profile of the cross-section significantly reduces the air flow turbulence. In the conventional wind-driven power plants with the round-shaped stands, air flow turbulence is what causes an infrasound noise upon interaction with the rotor blades. Thus, the proposed solution reduces the intensity of the noise generated by the plant.
The mast is lifted into a vertical position by the main winch (9) mounted on fixed base (1). The winch rope passes through angle pulleys installed on beam (3) of the rotary part (2). Beam (3) acts as a lever, on which the angle pulleys are located at a certain distance from the axis of hinge (4) for rotating the stand in the vertical plane, such that a sufficient moment of force is created for lifting and lowering stand (5) with nacelle, rotor, and blades mounted thereon. The cross-section of beam (3) is configured to follow the symmetrical aerodynamic profile of stand (5).
The main winch can be used to lower the mast into a horizontal position during repair and maintenance of the nacelle mechanisms.
Although the present invention has been explained hereinabove by way of a preferred embodiment thereof, it should be pointed out that any modifications to this preferred embodiment within the scope of the appended claims is not deemed to alter or change the nature and scope of the present invention.
The streamlined shape of the stand having a symmetrical aerodynamic profile of the cross-section significantly reduces the air flow turbulence. In the conventional wind-driven power plants with the round-shaped stands, air flow turbulence is what causes an infrasound noise upon interaction with the rotor blades. Thus, the proposed solution reduces the intensity of the noise generated by the plant.
The mast is lifted into a vertical position by the main winch (9) mounted on fixed base (1). The winch rope passes through angle pulleys installed on beam (3) of the rotary part (2). Beam (3) acts as a lever, on which the angle pulleys are located at a certain distance from the axis of hinge (4) for rotating the stand in the vertical plane, such that a sufficient moment of force is created for lifting and lowering stand (5) with nacelle, rotor, and blades mounted thereon. The cross-section of beam (3) is configured to follow the symmetrical aerodynamic profile of stand (5).
The main winch can be used to lower the mast into a horizontal position during repair and maintenance of the nacelle mechanisms.
Although the present invention has been explained hereinabove by way of a preferred embodiment thereof, it should be pointed out that any modifications to this preferred embodiment within the scope of the appended claims is not deemed to alter or change the nature and scope of the present invention.
Claims (2)
1. A foldable wind-driven power plant, comprising a stand, having a wind generator installed in its upper part, which is mounted on a main support and configured to tilt into a horizontal position and lift into a vertical position, and a main winch, wherein said plant is equipped with an auxiliary winch mounted on an additional support provided with a seat and installed on a separate foundation; the main support consists of a fixed base and a rotary part installed thereon with the possibility to turn in the horizontal plane around a vertical axis; said base enables the downwind rotation of the stand mounted on the rotary part and embodied in the form of a vertical wing realized on the basis of a spatial frame, the elements of which are only subjected to compression or tension, and are covered with a shell; the cross-section of said wing has a symmetrical aerodynamic profile, while the vertical axis of rotation of the stand is located in front of the aerodynamic focus of the wing, thus, enabling the stand to feather downwind; the lower part of the stand contains a hinge, which enables the rotation of the stand around the horizontal axis and divides the stand post into a non-tilting beam containing rope transfer blocks of the main winch mounted on the fixed base, which are distant from the axis of rotation, and a tilting-lifting part containing in its section the blocks for securing such ropes, which are distant from said hinge; the upper part of the stand contains the point of attachment of the auxiliary winch rope.
2. The plant according to claim 1, wherein the fixed base of the main support is embodied in the form of a star-shaped structure mounted on the foundation and provided with at least three legs, one of which is equipped with the main winch, while located in the center of the fixed base are the fixed part of the hinge, facilitating rotation of the stand around the vertical axis, and the rotary part of the main support along with the mechanisms facilitating such rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3074294A CA3074294A1 (en) | 2020-02-28 | 2020-02-28 | Foldable wind-driven power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3074294A CA3074294A1 (en) | 2020-02-28 | 2020-02-28 | Foldable wind-driven power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3074294A1 true CA3074294A1 (en) | 2021-08-28 |
Family
ID=77460667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3074294A Pending CA3074294A1 (en) | 2020-02-28 | 2020-02-28 | Foldable wind-driven power plant |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA3074294A1 (en) |
-
2020
- 2020-02-28 CA CA3074294A patent/CA3074294A1/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20240228 |
|
| EEER | Examination request |
Effective date: 20240228 |