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WO2013007342A1 - Dispositif de refroidissement pour éoliennes - Google Patents

Dispositif de refroidissement pour éoliennes Download PDF

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Publication number
WO2013007342A1
WO2013007342A1 PCT/EP2012/002699 EP2012002699W WO2013007342A1 WO 2013007342 A1 WO2013007342 A1 WO 2013007342A1 EP 2012002699 W EP2012002699 W EP 2012002699W WO 2013007342 A1 WO2013007342 A1 WO 2013007342A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
cooling device
tower
flow
air flow
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.)
Ceased
Application number
PCT/EP2012/002699
Other languages
German (de)
English (en)
Inventor
Benjamin THEOBALD
Thomas Wolfanger
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.)
Hydac Cooling GmbH
Original Assignee
Hydac Cooling GmbH
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 Hydac Cooling GmbH filed Critical Hydac Cooling GmbH
Publication of WO2013007342A1 publication Critical patent/WO2013007342A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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

Definitions

  • the invention relates to a cooling device for wind turbines with rotatably mounted on a tower engine house and with at least one associated with this heat exchanger, which is part of a cooling circuit and is exposed to heat dissipation to the environment of the outer air flow.
  • cooling devices In the units located in the nacelle, such as gearboxes, generators, etc., incurred during operation losses, so that care must be taken to dissipate heat loss to the environment.
  • cooling devices In the prior art cooling devices are provided for this purpose, which lead in a circuit a cooling medium to relevant heat sources and have one or more heat exchangers, which fans upstream or downstream, to produce a corresponding flow of cooling air.
  • the invention has the object to provide a cooling device for wind turbines, which is characterized by a further improved energy balance. According to the invention this object is achieved by a cooling device having the features of claim 1 in its entirety.
  • a significant feature of the invention is that at least one of the outer air flow exposed heat exchanger is disposed at a position at which the air flow is accelerated by the resulting from the geometry of the tower displacement effect.
  • This arrangement of the heat exchanger takes advantage of the fact that the tower is flowed around in the usual, tubular shape like a circular cylindrical body, with greatly accelerated flow areas on both sides of a vertical plane defined by the rotor axis and forming a congestion area Flow yield.
  • the inventively provided arrangement of one or more heat exchangers such that it is at least partially in such a flow region, leads to an improved flow and thus increased heat transfer to the ambient air. Thanks to the improved cooling effect, additional, active means for increasing the flow of air at lower power can be used or eliminated altogether, so that an overall improvement in the energy balance is achieved.
  • the respective heat exchanger is located adjacent to the outer surface of the tower so that it is largely within the region of the fastest accelerated flow.
  • the arrangement can be made such that the respective heat exchanger below the machine house in a plane is arranged, which is inclined to the axis of rotation of the rotor corresponding to the main wind direction perpendicular or at an angle thereto. The range of accelerated flow is thus optimally used for the flow through the jewei time heat exchanger.
  • the respective heat exchanger can additionally be assigned a device for flow guidance and / or treatment.
  • one or more flow control surfaces can be provided in this regard on the respective heat exchanger.
  • a fan which is upstream or downstream of the respective heat exchanger can be assigned as an active flow amplifier.
  • FIG. 1 shows a sketch of a simplified representation of only the upper part of a wind energy plant adjacent to the machine house with an exemplary embodiment of the cooling device according to the invention, seen on one side of the machine house;
  • FIG. 1 is a simplified illustration corresponding to Figure 1, seen on the front side of the machine house and
  • Figure 3 is a diagrammatic representation of the flow pattern of the
  • FIGS. 1 and 2 show, in a simplified, sketch-like illustration, the upper part of a wind turbine with a machine house 1, which is rotatably mounted on a tower 3 in the usual way, so that the axis of rotation 5 of the rotor 7 can be adjusted in the main wind direction ,
  • a cooling circuit which is provided for cooling of units, which are located inside the machine house 1 and generate heat loss during operation, only external heat exchanger 9 are shown in the figures, while the rest, located in the machine house 1 cooling circuit, as well as Aggregates located in the machine house 1 are not shown, since these components can all correspond to the state of the art.
  • two heat exchangers 9 are connected to the bottom 1 1 of the machine house 1 so that they are located on both sides of the tower 3, wherein, as can be seen from Figure 2, the heat exchanger 9 to the outer surface 1 3 of the tower 3 are closely adjacent.
  • FIG. 3 illustrates the flow pattern during the flow around a stationary circular cylinder, as embodied herein by the tower 3 of the wind energy plant.
  • the only partially quantified in Figure 3 streamlines 1 5 run parallel to each other before reaching the tower 3, ie with over the flow field of the same flow velocity.
  • the convergence of the streamlines 15, which has an acceleration of the flow in subsonic flows result.
  • contraction regions 1 9 are considerably increased flow velocity.
  • the heat exchangers 9 are arranged so that they are located within the accelerated contraction regions 19.
  • 3 shows in the upper part of a heat exchanger 9, which is arranged within a plane 23 corresponding to that of the axis 5 of the rotor 7
  • Main wind direction is vertical.
  • a contrast, modified example is shown, in which the heat exchanger 9 is in a relation to the plane 23 at a, preferably small angle ⁇ inclined plane.
  • devices for flow guidance and for flow conditioning are associated with the heat exchanger 9.
  • the heat exchanger 9 which may be designed in the form of a plate heat exchanger, inner guide plates 25 (only one each numbered in Figure 3) on.
  • a flow guide 27 At the outer edge of the heat exchanger 9 may also be provided a flow guide 27, which, as shown by way of example in Figure 3, extends against the main wind direction and intensifies the flow additionally.
  • a fan 29 or a plurality of fans can be preset or set downstream of the lower heat exchanger 9. Such or such may be provided in addition to the fins 25 and / or the guide surface 27 or alternatively thereto. Corresponding devices for flow guidance and conditioning can also be provided on the heat exchanger 9 located at the top in FIG.
  • other types of heat exchangers may be used as needed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (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)
  • Wind Motors (AREA)

Abstract

L'invention concerne un dispositif de refroidissement pour éoliennes, comprenant une nacelle (1) agencée de manière à pouvoir tourner sur une tour (3) et au moins un échangeur de chaleur (9) relié à cette dernière et faisant partie d'un circuit de refroidissement et exposé au courant d'air extérieur pour le dégagement de chaleur vers l'environnement. Le dispositif de refroidissement est caractérisé en ce qu'au moins un échangeur de chaleur (9) exposé au courant d'air extérieur est agencé en un emplacement (19) sur lequel le courant d'air est accéléré par l'effet de déplacement résultant de la géométrie de la tour (3).
PCT/EP2012/002699 2011-07-09 2012-06-26 Dispositif de refroidissement pour éoliennes Ceased WO2013007342A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011107013A DE102011107013A1 (de) 2011-07-09 2011-07-09 Kühleinrichtung für Windenergieanlagen
DE102011107013.7 2011-07-09

Publications (1)

Publication Number Publication Date
WO2013007342A1 true WO2013007342A1 (fr) 2013-01-17

Family

ID=46384308

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/002699 Ceased WO2013007342A1 (fr) 2011-07-09 2012-06-26 Dispositif de refroidissement pour éoliennes

Country Status (2)

Country Link
DE (1) DE102011107013A1 (fr)
WO (1) WO2013007342A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013185767A1 (fr) * 2012-06-10 2013-12-19 Vestas Wind Systems A/S Éolienne comprenant une structure d'échange de chaleur montée dans la tour
JP2014206110A (ja) * 2013-04-15 2014-10-30 株式会社日立製作所 風力発電設備
US10018188B2 (en) 2014-07-02 2018-07-10 Vestas Wind Systems A/S Wind turbine with a tower-mounted heat exchange structure
CN114704444A (zh) * 2022-05-13 2022-07-05 北京三力新能电气设备有限公司 一种风力发电机组的冷却装置、机舱及风力发电机组
EP3680481B1 (fr) 2019-01-10 2024-09-25 Siemens Gamesa Renewable Energy A/S Échangeur de chaleur incliné pour une éolienne

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012017462A1 (de) 2012-09-04 2014-05-15 Hydac Cooling Gmbh Wärmetauscheranordnung für einen windumströmbaren Körper
DE102017201889A1 (de) * 2017-02-07 2018-08-09 Siemens Aktiengesellschaft Kühleinrichtung zum Kühlen einer energietechnischen Anlage
DE102019000723A1 (de) 2019-01-31 2020-08-06 Hydac Cooling Gmbh Kühler

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001077526A1 (fr) * 2000-04-05 2001-10-18 Aerodyn Engineering Gmbh Installation d'energie eolienne dotee d'un systeme d'echange thermique
DE10352023A1 (de) * 2003-11-07 2005-06-16 Rittal Rcs Communication Systems Gmbh & Co. Kg Klimatisierungsvorrichtung
EP1586769A2 (fr) * 2004-04-16 2005-10-19 Friedrich Prof. Dr.-Ing. Klinger Nacelle d'éolienne
WO2009115100A1 (fr) * 2008-03-20 2009-09-24 Powerwind Gmbh Installation éolienne et procédé d'exploitation d'une installation éolienne
EP2325485A1 (fr) * 2009-11-24 2011-05-25 Siemens Aktiengesellschaft Agencement d'une nacelle avec un radiateur rentrant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001077526A1 (fr) * 2000-04-05 2001-10-18 Aerodyn Engineering Gmbh Installation d'energie eolienne dotee d'un systeme d'echange thermique
DE10352023A1 (de) * 2003-11-07 2005-06-16 Rittal Rcs Communication Systems Gmbh & Co. Kg Klimatisierungsvorrichtung
EP1586769A2 (fr) * 2004-04-16 2005-10-19 Friedrich Prof. Dr.-Ing. Klinger Nacelle d'éolienne
WO2009115100A1 (fr) * 2008-03-20 2009-09-24 Powerwind Gmbh Installation éolienne et procédé d'exploitation d'une installation éolienne
EP2325485A1 (fr) * 2009-11-24 2011-05-25 Siemens Aktiengesellschaft Agencement d'une nacelle avec un radiateur rentrant

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013185767A1 (fr) * 2012-06-10 2013-12-19 Vestas Wind Systems A/S Éolienne comprenant une structure d'échange de chaleur montée dans la tour
JP2014206110A (ja) * 2013-04-15 2014-10-30 株式会社日立製作所 風力発電設備
US10018188B2 (en) 2014-07-02 2018-07-10 Vestas Wind Systems A/S Wind turbine with a tower-mounted heat exchange structure
EP3680481B1 (fr) 2019-01-10 2024-09-25 Siemens Gamesa Renewable Energy A/S Échangeur de chaleur incliné pour une éolienne
CN114704444A (zh) * 2022-05-13 2022-07-05 北京三力新能电气设备有限公司 一种风力发电机组的冷却装置、机舱及风力发电机组

Also Published As

Publication number Publication date
DE102011107013A1 (de) 2013-01-10

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