DE102021000427A1 - Device and method for dismantling a concrete tower, in particular a concrete segment tower, of a wind turbine - Google Patents

Abstract

Device for dismantling a concrete tower, in particular a concrete segment tower, of a wind turbine, WTG, comprising:- a traverse with an elongate frame,- a suspension at a first longitudinal end of the elongate frame, which is designed to attach the entire device to a cable of a crane and into a concrete tower of a wind turbine or to pull it out there, - a clamping device in the area of a second longitudinal end of the elongated frame for clamping the device suspended in the concrete tower inside the concrete tower, - a breaking device in the area of the first longitudinal end of the elongated frame for breaking the concrete tower ,- a force-generating device and- a control device for controlling the components of the device, in particular the clamping and breaking devices, in such a way that the concrete tower is dismantled by breaking the concrete tower, and methods for dismantling a concrete tower, in particular a concrete segment tower of a wind turbine, WTG.

Description

The present invention relates to a method and a device for dismantling concrete towers, in particular wind turbines. In particular, the present invention relates to a device for dismantling a concrete tower, in particular a concrete segment tower, of a wind turbine, WTG, and a method for dismantling a concrete tower, in particular a concrete segment tower, of a wind turbine, WTG.

Wind turbines often have an operating life of around 20 years. After this time has elapsed, it is often necessary to dismantle the wind turbine.

In the prior art, dismantling is carried out, for example, by means of an explosive device, demolition (concrete is removed in fragments) or sawing.

The present invention is based on the object of enabling simpler and therefore more cost-effective dismantling of a wind energy plant.

• - eine Traverse mit einem länglichen Rahmen,
• - eine Aufhängung an einem ersten Längsende des länglichen Rahmens, die dazu ausgebildet ist, die gesamte Vorrichtung an einem Kran, vorzugsweise über einen Kranhaken, anzubringen und in einen Betonturm einer WEA zu hängen oder dort herauszuziehen,
• - eine Klemmeinrichtung im Bereich eines zweiten Längsendes des länglichen Rahmens zum Klemmen der in den Betonturm gehängten Vorrichtung im Inneren des Betonturms,
• - eine Brecheinrichtung im Bereich des ersten Längsendes des länglichen Rahmens zum Brechen des Betonturms,
• - eine Krafterzeugungseinrichtung und
• - eine Steuereinrichtung zum Ansteuern der Komponenten der Vorrichtung, insbesondere der Klemm- und Brecheinrichtungen, derart, dass der Betonturm durch Brechen desselben demontiert wird.

According to the invention, this object is achieved according to a first aspect by a device for dismantling a concrete tower, in particular a concrete segment tower, of a wind turbine, WTG, comprising:

• - a truss with an elongated frame,
• - A suspension at a first longitudinal end of the elongate frame, which is designed to attach the entire device to a crane, preferably via a crane hook, and to hang it in a concrete tower of a wind turbine or to pull it out there,
• - a clamping device in the area of a second longitudinal end of the elongate frame for clamping the device suspended in the concrete tower inside the concrete tower,
• - a breaking device in the area of the first longitudinal end of the elongate frame for breaking the concrete tower,
• - a power generating device and
• - A control device for controlling the components of the device, in particular the clamping and breaking devices, such that the concrete tower is dismantled by breaking the same.

1. a) Hängen der Vorrichtung mittels der Aufhängung an einen Kran, vorzugsweise über einen Kranhaken, oder an ein anderes Hebemittel,
2. b) Einführen der Vorrichtung vorzugsweise senkrecht in einen Betonturm einer WEA, vorzugsweise bis das obere erste Längsende des Rahmens zur Oberkante des Betonturms bündig ist, mittels des Krans,
3. c) Klemmen der Vorrichtung im Bereich des unteren zweiten Längsendes des Rahmens durch Betätigen der Klemmeinrichtung,
4. d) Brechen des Betonturms im Bereich des oberen ersten Längsendes des Rahmens durch Betätigen der Brecheinrichtung,
5. e) gegebenenfalls Deaktivieren der Klemm- und Brecheinrichtungen, Absenken der Vorrichtung und Zurückkehren zu Schritt c). Vorzugsweise wird die Vorrichtung im Schritt b) von oben eingeführt. Sie könnte aber auch z. B. von unten z. B. durch ein Loch oder z. B. seitlich z. B. unter Wegbrechen eines Teils der Turmwand eingeführt werden.

According to a second aspect, this object is achieved by a method for dismantling a concrete tower, in particular a concrete segment tower, of a wind turbine, WTG, using the device according to one of claims 1 to 18, comprising:

1. a) hanging the device by means of the suspension on a crane, preferably using a crane hook, or on another lifting device,
2. b) inserting the device, preferably vertically into a concrete tower of a wind turbine, preferably until the upper first longitudinal end of the frame is flush with the upper edge of the concrete tower, using the crane,
3. c) clamping the device in the area of the lower second longitudinal end of the frame by actuating the clamping device,
4. d) breaking of the concrete tower in the area of the upper first longitudinal end of the frame by actuating the breaking device,
5. e) if necessary deactivating the clamping and breaking devices, lowering the device and returning to step c). In step b), the device is preferably introduced from above. But you could also z. B. from below z. B. through a hole or z. B. laterally z. B. be introduced breaking away a part of the tower wall.

• - in einer ersten Höhe Ausüben von Druck im Inneren eines Betonturms auf die Innenfläche es Betonturms im oberen Bereich desselben bis zum Brechen des Betonturms in dem Bereich und

gegebenenfalls Wiederholen des vorgenannten Schrittes in einer gegenüber der ersten Höhe geringeren Höhe.According to a third aspect, this object is achieved in general by a method for dismantling a concrete tower, in particular a concrete segment tower, of a wind turbine, WTG, comprising:

• - at a first level, exerting pressure inside a concrete tower on the inner surface of the concrete tower in the upper part thereof until the concrete tower breaks in the area and

optionally repeating the aforementioned step at a lower level than the first level.

According to a particular embodiment, the device can be provided with the second longitudinal end of the frame being bevelled. This serves to penetrate and press down any platforms that may be in a concrete tower when the device is lowered.

According to a special embodiment, the suspension has a crane hook mount.

For example, the suspension can have at least one, preferably two, shackles.

Conveniently, the suspension is designed for controlled rotation of the frame about its longitudinal axis, preferably 360°.

In particular, it can be provided that the device comprises a motor, in particular an oil motor, for the controlled rotation of the frame about its longitudinal axis.

Advantageously, the device also includes a spreading device in the area of the first longitudinal end of the frame.

According to a particular embodiment, the clamping device has at least one support plate and at least one, preferably exchangeable and/or extendable, hydraulic cylinder for moving the at least one support plate transversely to the longitudinal axis of the frame.

In particular, it can be provided that the device has at least one, preferably releasably attached or attachable, counter bearing for at least one support plate.

According to a further particular embodiment, the breaking device has at least one pressure plate and at least one, preferably exchangeable and/or extendable, hydraulic cylinder for moving the at least one pressure plate transversely to the longitudinal axis of the frame.

In particular, it can be provided that the breaking device has at least one chisel holder.

Advantageously, the device comprises at least one, preferably releasably attached or attachable, counter bearing for at least one pressure plate.

In addition, it can be provided that the at least one counter bearing comprises a back claw.

It can also be provided that the at least one counter bearing comprises an adjustable backpack.

The force-generating device expediently comprises a hydraulic unit arranged in the frame and a hydraulic oil tank for operating the clamping and breaking devices.

In particular, it can be provided that the power generation device also includes a diesel engine and a diesel tank.

In addition, it can be provided that the device also comprises an electrical box which is fastened in or on the frame and in which the control device is arranged.

In addition, the device can include an antenna connected to the control device and a radio remote control for operating the device using the control device.

The present invention is based on the surprising finding that the exertion of pressure on the inside of a concrete tower of a wind power plant makes it possible to dismantle the wind power plant in a simple manner.

• 1 eine Vorderansicht einer Vorrichtung zum Demontieren eines Betonturmes einer Windenergieanlage gemäß einer besonderen Ausführungsform der vorliegenden Erfindung;
• 2 eine Rückansicht der Vorrichtung von 1;
• 3 eine Detailansicht von 2;
• 4 eine Detailansicht von 1;
• 5 den Gegenstand von 4 nach einer Drehung um ca. 45 Grad um eine vertikale Achse;
• 6 den Gegenstand von 4 nach einer Drehung um 90 Grad um eine vertikale Achse;
• 7 beispielhaft ein unteres Längsende der Vorrichtung; und
• 8 eine perspektivische Ansicht einer Vorrichtung zum Demontieren eines Betonturms einer Windenergieanlage gemäß einer weiteren Ausführungsform der vorliegenden Erfindung.

Further features and advantages of the invention result from the appended claims and from the following description, in which several exemplary embodiments are explained in detail with reference to the schematic drawings. It shows:

• 1 a front view of a device for dismantling a concrete tower of a wind turbine according to a particular embodiment of the present invention;
• 2 a rear view of the device of FIG 1 ;
• 3 a detailed view of 2 ;
• 4 a detailed view of 1 ;
• 5 the object of 4 after a rotation of approximately 45 degrees about a vertical axis;
• 6 the object of 4 after a 90 degree rotation about a vertical axis;
• 7 for example a lower longitudinal end of the device; and
• 8th a perspective view of a device for dismantling a concrete tower of a wind turbine according to a further embodiment of the present invention.

The in the 1 until 6 Device 10 shown comprises a traverse with an elongated frame 12. Furthermore, the device 10 comprises a suspension 14 at a first longitudinal end 12a of the elongated frame 12, which is designed to the entire device 10 on a crane (not shown), preferably via a Crane hooks (not shown) and to hang in a concrete tower (not shown) of a wind turbine or to pull it out there, a clamping device 16 in the area of a second longitudinal end 12b of the elongated frame 12 for clamping the device hung in the concrete tower inside the concrete tower, a Breaking device 18 in the region of the first longitudinal end 12a of the elongated frame 12 for breaking the concrete tower, a force generating device 20 and a control device for controlling the components of the device 10, in particular the Clamping and breaking devices 16 and 18, respectively, such that the concrete tower is dismantled by breaking it.

The suspension 14 has a crane hook mount 22, which is installed by means of a bolt 24, and two shackles 25 (see e.g. 4-6 ) that can be hung, for example, on a crane hook (not shown). By means of an interposed motor, in particular an oil motor 26, the frame 12 can be rotated about its longitudinal axis, preferably through 360°, controlled by the control device.

The clamping device 16 has a support plate 28 and, in this example, two exchangeable and/or extendable hydraulic cylinders 30 for moving the support plate 28 transversely to the longitudinal axis of the frame 12. Advantageously, the support plate 28 extends at right angles to the two hydraulic cylinders 30.

The breaking device 18 has a pressure plate 32 and, in this example, four exchangeable and/or extendable hydraulic cylinders 34 for moving the pressure plate 32 transversely to the longitudinal axis of the frame 12 . The pressure plate 32 advantageously extends at right angles to the four hydraulic cylinders 34.

In this example, the hydraulic cylinders 30 and 34 are extendable and retractable on the same side with respect to the longitudinal axis of the frame 12 . On the opposite side, two abutments 36 arranged at a distance from one another in the vertical direction are shown by way of example. The counter bearings 36 can be releasably fastened to the frame 12 in corresponding holders 38, if required, can be hung in this example.

The lower counter bearing 36 serves as a counter bearing for the support plate 28 and presses against the concrete tower, and the upper counter bearing 36 serves as a counter bearing for the pressure plate 32 and also presses against the concrete tower. The counter bearings 36 can be designed as back claws. In particular, they can include an adjustable backpack.

The power generation device 20 also includes a “power pack” with a diesel engine (for example a Hatz diesel engine) 44 arranged in the frame 12 and a hydraulic unit 40 arranged in the frame 12 for operating the clamping and breaking devices 16 and 18. Instead of a diesel engine, e.g. B. an electric motor can be used.

In addition, the power generation device 20 has a hydraulic oil tank 42 connected to the hydraulic unit and a diesel tank 46 connected to the diesel engine 44 . For example, these are above the "Powerpack". In particular, in this example, the hydraulic oil tank 42 (see Fig. 1 ) and on the other side (e.g. on the back) the diesel tank 46 (generally fuel tank) (s. 2 and 3 ) provided for the diesel engine 44 in the traverse.

Above the hydraulic oil tank 42 is an electrical box 48 (only in 2 and 3 shown). The electrical box 48 is bolted to the frame 12 . The control device (not shown) is arranged in the electrical box 48 .

In addition, the device 10 has an antenna (not shown) connected to the control device and a radio remote control (not shown) for operating the device using the control device.

The dead weight of the device 10 is 13 tons in this example. Preferably, the frame is at the lower second longitudinal end 12 b (see 7 left) beveled to penetrate and/or press down platforms (not shown) or the like located in the concrete tower.

To dismantle a concrete tower (not shown), for example a wind turbine, the device 10 is inserted vertically into the concrete tower of a wind turbine using a crane, for example, in particular a large crane, preferably until the upper first longitudinal end 12a of the frame 12 is flush with the upper edge of the concrete tower. The two lower hydraulic cylinders 30 then move (see Fig. 1 and 2 ) and clamp the traverse with a pressure of about 150 tons in the concrete tower.

In this example, the actual power work is performed by the four upper hydraulic cylinders 34 (see Fig. 1 and 2 ), which are intended to break the concrete tower via the pressure plate 32 and, if necessary, corresponding extensions. These four hydraulic cylinders provide a maximum force of 350 tons, for example. The counter bearings 36, in particular back claws, and the length of the hydraulic cylinder are exchanged accordingly depending on the tower diameter and larger ones are used.

The one in the 8th shown embodiment differs from that in FIGS 1 until 6 The embodiment shown essentially consists in the fact that it also has an upper spreader device 50 with spreader arms (not shown), a chisel holder 52 on the pressure plate 32 and deflector plates 54, only one of which is identified.

The features of the invention disclosed in the above description, in the drawings and in the claims can be essential both individually and in any combination for the realization of the invention in its various embodiments.

reference list

10

contraption

12

frame

12a

first longitudinal end

12b

second longitudinal end

14

suspension

16

clamping device

18

breaking device

20

power generation device

22

Crane hook mount

24

bolt

25

shackle

26

oil engine

28

outriggers

30

hydraulic cylinder

32

printing plate

34

hydraulic cylinder

36

counter bearing

38

mounts

40

hydraulic unit

42

hydraulic oil tank

44

diesel engine

46

diesel tank

48

electrical box

50

spreading device

52

chisel holder

54

deflector plate

Claims (20)

Device (10) for dismantling a concrete tower, in particular a concrete segment tower, of a wind turbine, WEA, comprising: - a traverse with an elongated frame (12), - a suspension (14) at a first longitudinal end (12a) of the elongated frame (12), which is designed to attach the entire device (10) to a crane, preferably via a crane hook, and to hang it in a concrete tower of a wind turbine or pull out there - a clamping device (16) in the area of a second longitudinal end (12b) of the elongate frame (12) for clamping the device (10) suspended in the concrete tower inside the concrete tower, - a breaking device (18) in the area of the first longitudinal end (12a) of the elongate frame (12) for breaking the concrete tower, - a force generating device (20) and - A control device for controlling the components of the device (10), in particular the clamping and breaking devices (16 and 18), such that the concrete tower is dismantled by breaking it. Device (10) after claim 1 , wherein the second longitudinal end (12b) of the frame (12) is beveled. Device (10) after claim 1 or 2 , wherein the suspension (14) has a crane hook receptacle (22). Device (10) according to one of Claims 1 until 3 , wherein the suspension (14) has at least one, preferably two, shackles (25). Apparatus (10) according to any one of the preceding claims, wherein the suspension (14) is designed for controlled rotation of the frame (12) about its longitudinal axis, preferably 360°. Device (10) after claim 5 , comprising a motor, in particular an oil motor (26), for the controlled rotation of the frame (12) about its longitudinal axis. Device (10) according to one of the preceding claims, further comprising a spreading device (50) in the region of the first longitudinal end (12a) of the frame (12). Device (10) according to one of the preceding claims, wherein the clamping device has at least one support plate (28) and at least one, preferably exchangeable and/or extendable, hydraulic cylinder (30) for moving the at least one support plate (28) transversely to the longitudinal axis of the frame (12 ) having. Device (10) after claim 8 , further comprising at least one, preferably releasably attached or attachable, counter bearing to the at least one support plate (28). Device (10) according to one of the preceding claims, wherein the breaking device (18) has at least one pressure plate (32) and at least one, preferably exchangeable and/or extendable, hydraulic cylinder (34) for moving which has at least one pressure plate (32) transverse to the longitudinal axis of the frame (12). Device (10) after claim 10 , wherein the breaking device (18) has at least one bit holder (52). Device (10) after claim 10 or 11 , further comprising at least one, preferably releasably attached or attachable, counter bearing (36) for at least one pressure plate (32). Device (10) after claim 9 or 12 , wherein the at least one counter bearing (36) comprises a back claw. Device (10) according to claim 9 or 12 , wherein the at least one counter bearing (36) comprises an adjustable backpack. Device (10) according to one of the preceding claims, wherein the force generating device (20) comprises a hydraulic unit (40) arranged in the frame (12) and a hydraulic oil tank (42) for operating the clamping and breaking devices (16 and 18). Device (10) after claim 15 , wherein the power generating device (20) further comprises a diesel engine (44) and a diesel tank (46). Apparatus (10) according to any one of the preceding claims, further comprising an electrical box (48) mounted in or on the frame (12) and in which the control means is located. Device (10) according to one of the preceding claims, further comprising an antenna connected to the control device and a radio remote control for operating the device (10) by means of the control device. Method for dismantling a concrete tower, in particular a concrete segment tower, of a wind turbine, WEA, using the device (10) according to one of the preceding claims, comprising: a) hanging the device (10) by means of the suspension on a crane, preferably using a crane hook, or on another lifting device, b) inserting the device (10), preferably vertically into a concrete tower of a wind turbine, preferably until the upper first longitudinal end (12a) of the frame (12) is flush with the upper edge of the concrete tower, by means of the crane, c) clamping the device (10) in the area of the lower second longitudinal end (12b) of the frame by actuating the clamping device (16), d) breaking of the concrete tower in the area of the upper first longitudinal end (12a) of the frame (12) by actuating the breaking device (18), e) optionally deactivating the clamping and breaking devices (16 and 18), lowering the device (10) and returning to step c). Method for dismantling a concrete tower, in particular a concrete segment tower, a wind turbine, WTG, comprising: - at a first level, exerting pressure inside a concrete tower on the internal surface of the concrete tower in the upper part thereof until the same breaks in the said part and optionally repeating the aforesaid step at a lower level than the first level.

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