CA2783445A1 - Wind power plant - Google Patents

Wind power plant Download PDF

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Publication number
CA2783445A1
CA2783445A1 CA2783445A CA2783445A CA2783445A1 CA 2783445 A1 CA2783445 A1 CA 2783445A1 CA 2783445 A CA2783445 A CA 2783445A CA 2783445 A CA2783445 A CA 2783445A CA 2783445 A1 CA2783445 A1 CA 2783445A1
Authority
CA
Canada
Prior art keywords
heat exchanger
pod
wind power
power installation
installation according
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.)
Granted
Application number
CA2783445A
Other languages
French (fr)
Other versions
CA2783445C (en
Inventor
Jochen Roeer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2783445A1 publication Critical patent/CA2783445A1/en
Application granted granted Critical
Publication of CA2783445C publication Critical patent/CA2783445C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/60—Cooling or heating of 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/80—Arrangement of components within nacelles or towers
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • F05B2240/10—Stators
    • F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • 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
    • F05B2260/00—Function
    • F05B2260/20—Heat transfer, e.g. cooling
    • 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
    • F05B2260/00—Function
    • F05B2260/20—Heat transfer, e.g. cooling
    • F05B2260/232—Heat transfer, e.g. cooling characterised by the cooling medium
    • 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
    • F05B2260/00—Function
    • F05B2260/60—Fluid transfer
    • F05B2260/64—Aeration, ventilation, dehumidification or moisture removal of closed spaces
    • 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

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  • Engineering & Computer Science (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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Wind Motors (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The present invention concerns a wind power installation (10) comprising a pod (16) having at least one fluid-cooled component and a heat exchanger (28). To simplify transport and construction of a wind power installation with a heat exchanger and thus to eliminate or at least reduce sources of error in the wind power installation of the kind set forth in the opening part of this specification the heat exchanger is integrated into the external contour of the pod. In that respect the present invention is based on the realisation that in that way when transporting and handling the pod, there is no need for any alterations worth mentioning, at the same time however the heat exchanger can also be installed upon assembly of the pod in the factory and can be tested for satisfactory functioning. That leads to a simplification in transporting and constructing the wind power installation and at the same time eliminates possible error sources.

Description

WIND POWER PLANT

The present invention concerns a wind power installation comprising a pod with at least one fluid-cooled component and a heat exchanger. Such wind power installations are known in large numbers in the state of the art.
Wind power installations with different pod or gondola shapes are also known. In that respect substantially rectangular (box-shaped) pods or gondolas are represented as well as cylindrical pods and pods approximating to a drop shape.
As a heat exchanger must be able to give off the heat to be dissipated to the environment in order to be able to perform its function, it is usual to arrange it on the top side of the pod in wind power installations.
That is effected for example when erecting a wind power installation on the building site so that the heat exchanger arranged on the pod does not cause difficulties in transporting and handling the pod or so that it cannot be damaged in that case. Therefore the heat exchanger is usually fitted in place during erection of the wind power installation on the building site. In that case however a wide range of different mounting errors can occur, which adversely affect satisfactory functioning of the heat exchanger.
Therefore the object of the present invention is to simplify transport and construction of a wind power installation having a heat exchanger and thus to eliminate or at least reduce sources of error.
In a wind power installation of the kind set forth in the opening part of this specification, that is achieved in accordance with the invention by integrating the heat exchanger into the external contour of the pod.
The object of the invention is attained by a wind power installation as set forth in claim 1.
Accordingly there is provided a wind power installation comprising a pod having at least one fluid-cooled component and a heat exchanger. In
2 that case the heat exchanger is integrated into the external contour of the pod.
In an aspect of the invention the heat exchanger has at least one ribbed tube.
In a further aspect of the invention the heat exchanger is formed from a ribbed tube which at least partially is continuously wound.
In a further aspect of the invention the heat exchanger has a plurality of ribbed tubes arranged in parallel relationship.
In a further aspect of the invention the heat exchanger is arranged on a carrier.
In a further aspect of the invention the carrier is in the form of a peripherally extending opening in the contour of the pod.
In a further aspect of the invention the carrier is in the form of a separate pod component.
In a further aspect of the invention the wind power installation, in the direction of a longitudinal axis of the pod, has a hold-down means which holds the ribbed tube in its installation position.
In a further aspect of the invention the wind power installation has a fan arranged in such a way that the air that it draws in flows around the heat exchanger.
In that respect the present invention is based on the realisation that in that way when transporting and handling the pod, there is no need for any alterations worth mentioning, at the same time however the heat exchanger can also be installed upon assembly of the pod in the factory and can be tested for satisfactory functioning. That leads to a simplification in transporting and constructing the wind power installation and at the same time eliminates possible error sources.
In a preferred embodiment the heat exchanger can be formed from at least one ribbed tube. Such a ribbed tube can be easily bent in such a way that it follows the contour of the pod and can therefore be well adapted to the pod contour.
A high level of reliability is afforded if the heat exchanger is formed from a continuously wound ribbed tube because then it is possible to
3 eliminate connecting locations and thus possible error locations at which for example leaks can occur.
To provide an adequate cooling efficiency the heat exchanger can also be formed from a plurality of ribbed tubes arranged in parallel relationship, thus affording a larger available cross-section in which the cooling fluid can be cooled.
Particularly preferably the heat exchanger is arranged on a carrier.
In that way that heat exchanger can be pre-produced in the form of a structural unit and mounted in the form of an attachment component to the pod. In that way functional testing can for example already be effected before it is attached to the pod so that a reliable heat exchanger is certain to be available when the pod is assembled.
In an alternative embodiment the carrier can be in the form of a peripherally extending opening in the contour of the pod. It is possible in that way to avoid sources of error when attaching the separately produced cooler, such as for example incorrect positioning, damage caused by failure to pay proper attention during transport, and so forth.
To hold the ribbed tube or tubes of the heat exchanger in an intended installation position, there can be hold-down means which are distributed over the periphery of the heat exchanger and arranged substantially in the direction of the longitudinal axis of the pod.
In a preferred development of the invention there is provided a fan so arranged that the air drawn in thereby flows around the heat exchanger.
That provides an active heat exchanger and a defined level of cooling efficiency for the heat exchanger.
An advantageous embodiment is illustrated in the Figures in which:
Figure 1 shows a simplified view of a wind power installation, Figure 2 shows a view on an enlarged scale of the pod of the wind power installation of Figure 1, Figure 3 shows a side view of a heat exchanger according to the invention in the form of an attachment component, Figure 4 shows a plan view of a heat exchanger according to the invention, and
4 Figure 5 shows a perspective view of the heat exchanger with the flow configuration of the cooling air sucked in by the fan.
Figure 1 shows a greatly simplified view of a wind power installation 10. The pylon 12 carries the pod 16 (alternatively the term machine housing can also be used for the pod). The pod 16 is mounted on a head of the pylon 12 by means of an azimuth bearing (not shown) so that it is possible to provide wind direction tracking by way of azimuth drives (also not shown). The transition between the pod 16 and the pylon 12 is covered by a pod skirt 14 and is thus protected from the influences of weather.
The pod 16 also includes the hub (also not shown) to which the rotor blades 24 are mounted. The hub (with the front part of the pod 16) is caused to rotate by the rotor blades 24. The rotary movement is transmitted to the rotor of the generator so that the wind power installation 10 generates electrical energy when there is a sufficient wind speed.
Figure 2 shows a more detailed view of the pod 16 of the wind power installation of Figure 1. The pod has a pod skirt 14 which covers over the transition from the pod 16 to the pylon (not shown in this Figure). The pod 16 has a front pod part 18 and a rear pod part 22. The generator 20 can be disposed between those two pod parts. The generator 20 can optionally be in the form of a ring generator.
Rotor blade domes 26 with blade enlargement portions can be provided on the front pod part 18. The respective rotor blade roots of the rotor blades (not shown in this Figure) can be guided into those rotor blade domes 26 and fastened to the rotor hub which transmits the rotary movement by way of a transmission or also directly, without a transmission, to the rotor as the rotary part of the generator 20 (not shown in this Figure).
The electrical energy generated when there is a sufficient wind speed is generated in the generator 20 and depending on the respective concept of the wind power installation can be fed by way of a transformer (not shown) for example directly into the network or can be converted into a direct current by way of rectifiers (also not shown) and then fed into the network again by way of inverters at a suitable frequency and phase position. A part of those described components can be disposed in the pod 16. At any event however in dependence on the power generated in the generator 20, heat due to energy losses is produced, which has to be dissipated by cooling. That cooling can involve air cooling; it can however
5 also use a cooling fluid such as for example water. It is precisely when a high thermal loading is involved that air cooling may be inadequate and fluid cooling can be required. Accordingly the generator 20 can have a generator cooling connection 30 from which a connection 32 is taken to the heat exchanger 28 at one side of the pod (at the right in the Figure). The cooling fluid flows through the generator cooling connection 30, the connection 32 and through the heat exchanger 28. The heat exchanger 28 is once again exposed to the flow of air and is of a sufficiently large surface area to reliably implement the required dissipation of heat so that the correspondingly cooled cooling fluid can again be fed to the generator in order to continue to reliably dissipate the heat due to energy losses.
The heat exchanger 28 which in the present example is formed from ribbed tubes 34 is fitted into or on to the contour of the pod 16 so that the aerodynamically favourable shape of the pod 16 is not detrimentally altered by the heat exchanger 28. In other words the heat exchanger thus replaces a part of the pod and is matched to the shape thereof so that the original shape of the pod is maintained to achieve an as aerodynamic shape as possible. In this case the heat exchanger can be provided at the end of the pod, opposite to the rotor 18, and can be of a dome-shaped configuration.
Alternatively or additionally the heat exchanger can be at least partially oval or elliptical in cross-section. Alternatively the heat exchanger can be of a cap-shaped configuration. That provides for adequate cooling of the cooling fluid utilising the advantageous shape of the pod 16. The heat exchanger can also be of an elliptical external contour.
Figure 3 shows a heat exchanger 28 according to the invention in the form of a separate attachment component. That heat exchanger according to the invention has ribbed tubes 34 which are wound on to a carrier in such a way that the external contour is a continuation of the pod contour, that is substantially true to the shape thereof, that is to say the contour of
6 the heat exchanger is oval (in cross-section), dome-shaped or cap-shaped.
So that the ribbed tubes 34 remain in position there are provided hold-down means 36 which hold the ribbed tubes 34 in the predetermined position. A fan 38 can be arranged downstream of the ribbed tubes 34 in the flow direction, the fan 38 drawing in air in such a way that it flows over the ribbed tubes 34 and thus the excess heat can be dissipated.
While Figure 3 shows a side view of an embodiment by way of example of a heat exchanger according to the invention Figure 4 shows a rear view, that is to say a view on to the heat exchanger 28, as is represented from the rear side of the pod. It will be noted in this respect however that, as in Figure 3, the pod is not shown. It is possible to clearly see in this Figure the ribbed tubes 34, the hold-down means 36 and the fan 38. This Figure also clearly shows a connecting box 40 to which all ribbed tubes 34 are connected. Through that connecting box 40 the cooling fluid can flow simultaneously through all ribbed tubes 34 so as to provide a sufficiently large flow cross-section to dissipate the required amount of heat to the ambient air by way of the heat exchanger 28. For that purpose the connecting box 40 is connected by way of a connection (not shown here) to the components to be cooled in the pod of the wind power installation.
A somewhat modified embodiment of the heat exchanger 28 according to the invention is shown in Figure 5. Figure 5 shows a perspective view, once again without the pod of the wind power installation. As already described above, the ribbed tubes 34 extend from the connecting box 40 so that the cooling fluid can simultaneously flow through them to be able to provide the required cooling efficiency. The fan 38 is again arranged at the end of the heat exchanger 28 and is provided with a cover 44 which allows the air flow 42 to be better guided.
When the fan 38 is set in operation it produces a flow of the ambient air over the surface of the ribbed tubes 34 in the direction indicated by arrows 42 so that active cooling can be implemented with that heat exchanger 28 according to the invention to dissipate the waste heat to the ambient air.
7 As the heat exchanger according to the invention is fitted into the external pod contour the external appearance of the wind power installation is at most slightly influenced, but is substantially retained. Accordingly the flow conditions at the pod are also substantially retained and at the same time an adequate cooling effect on the part of the heat exchanger 28 is achieved.

Claims (9)

1. A wind power installation comprising a pod (16) with at least one fluid-cooled component and a heat exchanger (28), wherein the heat exchanger (28) is integrated into the external contour of the pod (16).
2. A wind power installation according to claim 1 wherein the heat exchanger (28) has at least one ribbed tube (34).
3. A wind power installation according to one of the preceding claims wherein the heat exchanger (28) has a ribbed tube (34) which is at least partially continuously wound.
4. A wind power installation according to one of claims 1 and 2 wherein the heat exchanger (28) has a plurality of ribbed tubes (34) arranged in parallel relationship.
5. A wind power installation according to one of the preceding claims wherein the heat exchanger (28) is arranged on a carrier.
6. A wind power installation according to claim 5 wherein the carrier is in the form of a peripherally extending opening in the contour of the pod (16).
7. A wind power installation according to claim 5 wherein the carrier is in the form of a separate pod attachment component.
8. A wind power installation according to one of claims 2 to 7 and further comprising hold-down means (36) which are arranged in the direction of a longitudinal axis of the pod and which hold the ribbed tube (34) or tubes (34) in the installation position thereof.
9 9. A wind power installation according to one of the preceding claims and further comprising a fan (38) so arranged that the air (42) drawn in thereby flows around the heat exchanger (28).
CA2783445A 2010-01-08 2011-01-10 Wind power plant Active CA2783445C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010000756A DE102010000756A1 (en) 2010-01-08 2010-01-08 Wind turbine
DE102010000756.0 2010-01-08
PCT/EP2011/050202 WO2011083156A2 (en) 2010-01-08 2011-01-10 Wind power plant

Publications (2)

Publication Number Publication Date
CA2783445A1 true CA2783445A1 (en) 2011-07-14
CA2783445C CA2783445C (en) 2014-11-25

Family

ID=44305869

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2783445A Active CA2783445C (en) 2010-01-08 2011-01-10 Wind power plant

Country Status (27)

Country Link
US (1) US20130056173A1 (en)
EP (1) EP2521859B1 (en)
JP (1) JP5711763B2 (en)
KR (1) KR101391502B1 (en)
CN (1) CN102713274B (en)
AR (1) AR081273A1 (en)
AU (1) AU2011204560B2 (en)
BR (1) BR112012015990B1 (en)
CA (1) CA2783445C (en)
CL (1) CL2012001816A1 (en)
CY (1) CY1117669T1 (en)
DE (1) DE102010000756A1 (en)
DK (1) DK2521859T3 (en)
EA (1) EA023869B1 (en)
ES (1) ES2573650T3 (en)
HR (1) HRP20160788T1 (en)
HU (1) HUE029605T2 (en)
IN (1) IN2012DN05151A (en)
MX (1) MX2012007543A (en)
NZ (1) NZ600615A (en)
PL (1) PL2521859T3 (en)
PT (1) PT2521859T (en)
RS (1) RS54828B1 (en)
SI (1) SI2521859T1 (en)
TW (1) TWI486521B (en)
WO (1) WO2011083156A2 (en)
ZA (1) ZA201204326B (en)

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Publication number Publication date
AU2011204560B2 (en) 2014-07-31
TW201144589A (en) 2011-12-16
CN102713274A (en) 2012-10-03
DK2521859T3 (en) 2016-07-18
RS54828B1 (en) 2016-10-31
PT2521859T (en) 2016-07-13
CL2012001816A1 (en) 2012-12-14
CY1117669T1 (en) 2017-05-17
KR20120110131A (en) 2012-10-09
KR101391502B1 (en) 2014-05-07
JP5711763B2 (en) 2015-05-07
AU2011204560A1 (en) 2012-07-05
WO2011083156A3 (en) 2012-01-05
BR112012015990B1 (en) 2021-08-31
EA201290619A1 (en) 2012-12-28
EP2521859A2 (en) 2012-11-14
SI2521859T1 (en) 2016-07-29
AR081273A1 (en) 2012-08-01
JP2013516573A (en) 2013-05-13
ZA201204326B (en) 2013-02-27
CN102713274B (en) 2016-02-17
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HUE029605T2 (en) 2017-03-28
WO2011083156A2 (en) 2011-07-14
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US20130056173A1 (en) 2013-03-07
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TWI486521B (en) 2015-06-01

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