DE102015102065A1 - Transition device for anti-collapse devices of offshore structures - Google Patents

Abstract

The invention relates to a transition device (1) for anti-collapse devices (2) of offshore structures (4), which has a surface (6) with a slope which increases in the attached state to the offshore structure (4). As a result, harmful vortex in the transition region of Kolkschutz (2) and offshore structures (4) are reduced or avoided.

Description

Field of the invention

The invention relates to a transition device for Kolkschutzvorrichtungen of offshore structures.

Background of the invention

Cementation is understood to mean erosion phenomena of a water-covered ground due to flows in the area of offshore structures, such as wind power plants. The Kolk can endanger the stability of the offshore structures, so measures are necessary to prevent such Verkolkung. In the patent application WO 2013/159770 A1 For example, a scouring device made of elastic rubber plates is proposed. The rubber plates form a disc with an approximately circular contour. In the middle of an opening is provided, in which the offshore structure is arranged so that the offshore structure is completely surrounded by the Kolkschutzvorrichtung. A problem with the known anti-collapse devices is that, in the region of the edges where the anti-collapse device is attached to the offshore structure, there are swirls which, in turn, can promote the formation of scour.

Summary of the invention

The present invention has been developed in light of the above-described prior art. The object of the invention is to propose a device can be reduced or avoided by the vortex in the transition region of Kolkschutz and offshore structures.

This object is achieved in that the transition device has a surface with a slope which, at least in the fastened state, increases towards the offshore structure. This avoids or at least mitigates the formation of sharp edges in the area of the transition from the offshore structure to the scour protection. Due to the inclination of the transition device, the ocean or water flow is guided eddy-free along the offshore structure along. Because the vortexes near the bottom of the lake become significantly smaller and lose energy, there is the further advantage that the area of the anticollapsing device can be considerably reduced and thus costs can be reduced.

Advantageous embodiments of the invention with additional features will be described below.

The inclined surface may have a concave or s-shaped curvature in vertical section. This results in a particularly uniform transition and edge formation is completely avoided.

In a preferred embodiment, the transition device is designed to surround the offshore structure to annular. This is particularly useful if scouring device is annular.

The transition device is formed fastened to the scouring device and / or the offshore structure. It may alternatively be formed as an integral part of Kolkschutzvorrichtung.

The transition device consists essentially of a rubber body. This has the advantage that rubber can absorb the energy of the waves and vortices.

Furthermore, rubber is resistant to salt water and no corrosion occurs. Due to the resistance and durability of the rubber, the device is thus maintenance-free. The rubber can be made of natural rubber environmentally friendly. Another advantage is that the device is safe in a collision with watercraft.

The invention also includes an anti-collapse device having the transition device described above.

Brief description of the drawings

The figures show in detail:

1 a plan view of the transition device with a Kolkschutzvorrichtung;

2 a vertical section through the transition device with a monopile;

3 a vertical section through a second embodiment of the transition device; and

4 a detailed view of a third embodiment of the transition device in vertical section.

Functionally identical parts are provided with the same reference numerals.

Detailed description of preferred embodiments

Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings, wherein further advantageous features are shown in the figures of the drawing.

1 shows a plan view of the transition device 1 , This is on a Kolkschutzvorrichtung 2 attached from interconnected, elastic rubber sheets. The scour protection device 2 has the shape of a disc with a circular contour. The transition device 1 has an annular base with a circular, central opening 3 for an offshore structure 4 , This may for example be a monopile of a wind turbine (not shown). The transition device 1 is in the area of the central opening 3 at the offshore structure 4 attached.

2 shows a vertical section through the transition device 1 with a central monopile 4 in the seabed 5 , The transition device 1 is on the anti-scald device 2 and at the monopile 4 waterproof fastened. The transition device 1 has approximately the shape of a hollow truncated cone with an inwardly, ie concavely curved surface 6 , Through the curved surface 6 that to monopile 4 edges rise at the transition from the Kolkschutzvorrichtung 2 to the monopile 4 avoided there and prevents vortex formation, since the water flow is passed to the building over.

3 shows a vertical section through an alternative embodiment of the transition device 1 , It is also a part of a tripod founding 8th with a foundation body 7 shown. The foundation body 7 is mostly in the seabed 5 admitted. The free, from the seabed 5 projecting portion of the foundation body 7 is completely from the transfer device 1 surround. The surface 6 the transition device 1 is curved approximately s-shaped and goes into a horizontal plateau 9 over that the surface of the foundation body 7 covered.

The transition device 1 consists partly or completely of elastic rubber. As a result, the protective effect is maintained even when the Kolkschutzvorrichtung 2 or the foundation body 7 lowers or moves.

4 shows a detailed view of a third embodiment of the transition device 1 in vertical section. This has a section on its underside 10a a carrier 10 on the bottom of the sea 5 rests. The carrier 10a is at one end with a joint 11 with the carrier 10b connected. Through the joint, the wearer can 10b lower without deforming the whole assembly or becoming unstable or off the offshore structure 4 solves. On the carrier 10 is the anti-scald device 2 attached with rubber plates. The other end of the carrier 10a lies the wall of the offshore structure 4 where between carriers 10a and wall of the offshore structure 4 a sealing O-ring 12 is arranged so that the carrier 10 the offshore structure 4 waterproof.

On the carrier 10a is the essentially rubber body 15 the transition device 1 arranged, which has a concave or s-shaped curvature. Between the surface of the rubber body 15 that the offshore construction 4 rests and its wall are rollers 14 arranged. This is the transition device 1 movable on the offshore structure 4 attached so that when the seabed sinks 5 the protective effect of the transition device 1 remains guaranteed.

At the top of the transfer device 1 is a seal 13 provided so that from above also no water can penetrate.

LIST OF REFERENCE NUMBERS

1

 Transition device

2

 Kolkschutzvorrichtung

3

 opening

4

 Offshore structure

5

 Seabed

6

 surface

7

 foundation body

8th

 founding

9

 plateau

10

 carrier

11

 joint

12

 O-ring

13

 poetry

14

 roll

15

 rubber body

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2013/159770 A1 [0002]

Claims (6)

Transition device ( 1 ) for anti-scalding devices ( 2 ) of offshore structures ( 4 ), which have a surface ( 6 ) with an inclination that, when attached to the offshore structure ( 4 ) increases. Transition device ( 1 ) according to claim 1, characterized in that the inclined surface ( 6 ) has a concave or s-shaped curvature. Transition device ( 1 ) according to claim 1 or claim 2, characterized in that it is adapted to the offshore structure ( 4 ) surrounded annularly. Transition device ( 1 ) according to any one of the preceding claims, characterized in that it is attached to the anti-collapse device ( 2 ) and / or the offshore structure ( 4 ) fastened formed or integral part of Kolkschutzvorrichtung ( 2 ). Transition device ( 1 ) according to one of the preceding claims, characterized in that it consists essentially of rubber. Anti-collapse device ( 2 ), characterized in that it has a Transition device ( 1 ) according to one of the preceding claims.

Images