CN214958608U

CN214958608U - Fan jacket foundation internal submarine cable protection pipe butt joint structure

Info

Publication number: CN214958608U
Application number: CN202120765262.2U
Authority: CN
Inventors: 胡雪扬; 甘毅; 张金福; 许秋声; 陈继泉; 杨伟华
Original assignee: Fujian Provincial Investigation Design & Research Institute Of Water Conservancy And Hydropower
Current assignee: Fujian Water Resources And Hydropower Survey Design And Research Institute Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-11-30
Anticipated expiration: 2031-04-15

Abstract

The invention relates to a butt joint structure of a submarine cable protection pipe inside a jacket foundation of a fan, which comprises a jacket main guide pipe, submarine cable protection pipes and butt joint pipe orifices, wherein the submarine cable protection pipes are arranged inside the jacket main guide pipe, the butt joint pipe orifices are arranged at two ends inside an inner hole of the jacket main guide pipe, the butt joint pipe orifices at the two ends are connected through the submarine cable protection pipes, the butt joint pipe orifices are tapered pipe orifices with large outer parts and small inner parts, the butt joint isolates the inner wall of the jacket main guide pipe from the external environment through the butt joint pipe orifices, a series of problems caused by corrosion of the inner wall of the main guide pipe are avoided, the butt joint pipe orifices are tapered pipe orifices, the difficulty of submarine cable traction construction is reduced, and the form of the butt joint pipe orifices ensures that a submarine cable has no sharp corner in the whole contact range, and the submarine cable abrasion at the position is effectively reduced.

Description

Fan jacket foundation internal submarine cable protection pipe butt joint structure

Technical Field

The invention belongs to the technical field of arrangement and construction processes of foundation structures of ocean engineering, and particularly relates to a butt joint structure of a submarine cable protection pipe in a fan jacket foundation.

Background

At present, the construction of offshore wind power plants in China is gradually promoted to the deep open sea, and a jacket foundation has remarkable advantages in a deep water environment and has a large-scale application trend in the field of offshore wind power in China. For a wind turbine jacket foundation submarine cable protection pipe, it is a conventional practice to arrange the protection pipe outside the jacket. In the deep water sea area, jacket basis height is generally higher, and the wave current load that the structure receives is increased in jacket outside to the submarine cable protection tube setting, increases the degree of difficulty of arranging of structure simultaneously. At present stage deep water sea area fan jacket basis sea cable protection pipe considers arranging from main duct inside, but because the jacket basis can't get into main duct internal weld when finally folding, if the sea cable protection pipe sets up inside the main duct, the unable welded fastening in the position of the final butt joint of sea cable protection pipe to make the inside and sea water environment intercommunication of main duct, main duct inside can't form sealedly, must carry out anticorrosive protection. Meanwhile, when the submarine cable protection pipes are finally folded and butted, the situation that the butting positions are staggered due to the fact that the machining precision cannot meet the requirement is prone to occurring, great difficulty is brought to the cable pulling operation of submarine cable construction, and the submarine cables are prone to being abraded.

Disclosure of Invention

The invention provides a butt joint structure of a submarine cable protection pipe inside a fan jacket foundation.

The invention solves the technical problem by adopting the scheme that the butt joint structure of the submarine cable protection pipe in the jacket foundation of the fan comprises a jacket main guide pipe, a submarine cable protection pipe and butt joint pipe orifices, wherein the submarine cable protection pipe is arranged in the jacket main guide pipe, the butt joint pipe orifices are arranged at two ends in an inner hole of the jacket main guide pipe and are connected through the submarine cable protection pipe, and the butt joint pipe orifices are conical pipe orifices with large outer parts and small inner parts.

Furthermore, the butt joint mouth of pipe includes the stand pipe that is the loudspeaker form, sets up the shrouding in the stand pipe main junction periphery, and the tip of stand pipe is connected with submarine cable protection tube tip, and the shrouding outer end is connected with jacket main duct inner wall.

Furthermore, the submarine cable protection pipe is fixed with the main guide pipe in a support steel pipe welding mode.

Furthermore, the small end of the guide pipe is welded and fixed with the end part of the submarine cable protection pipe, the sealing plate is annular, the inner ring of the sealing plate is welded and fixed with the large end of the guide pipe, and the outer ring of the sealing plate is welded and fixed with the inner wall of the main guide pipe of the jacket.

Furthermore, the submarine cable protection pipe and the butt joint pipe orifice are coaxial.

Compared with the prior art, the invention has the following beneficial effects: simple structure, reasonable in design through the orificial setting of butt joint, completely cuts off jacket main duct inner wall and external environment, avoids the main duct inner wall to corrode a series of problems that bring, and the butt joint mouth of pipe has reduced the difficulty that the submarine cable dragged the cable construction for the toper mouth of pipe, and the orificial form of butt joint for the submarine cable does not have the closed angle at whole contact range, effectively reduces this position submarine cable wearing and tearing.

Drawings

The invention is further described with reference to the following figures.

Fig. 1 is a front view of the butt joint structure of the submarine cable protection pipe inside the jacket foundation of the wind turbine at the position of the jacket.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

In the figure: 1-a jacket main conduit; 2-submarine cable protection pipe; 3-butting pipe orifices; 4-a guide tube; and 5, sealing plates.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

As shown in fig. 1-2, a butt joint structure of a submarine cable protection pipe inside a jacket foundation of a wind turbine comprises a jacket main duct 1, a submarine cable protection pipe 2 and a butt joint pipe orifice 3, wherein the submarine cable protection pipe is arranged inside the jacket main duct, the butt joint pipe orifices are arranged at two ends inside an inner hole of the jacket main duct, the butt joint pipe orifices at the two ends are connected through the submarine cable protection pipe, and the butt joint pipe orifices are tapered pipe orifices with large outside and small inside.

In this embodiment, the butt joint mouth of pipe includes the guide tube 4 that is the loudspeaker form, sets up shrouding 5 in the guide tube main aspects periphery, and the tip of guide tube is connected with submarine cable protection tube tip, and the shrouding outer end is connected with jacket main duct inner wall.

In this embodiment, the submarine cable protection pipe is fixed to the main duct by a support steel pipe welding method.

In this embodiment, the tip of the guide tube is welded and fixed with the end of the submarine cable protection tube, the closing plate is circular, the inner ring of the closing plate is welded and fixed with the tip of the guide tube, and the outer ring of the closing plate is welded and fixed with the inner wall of the main conduit of the jacket.

In this embodiment, the submarine cable protection tube, and the butt joint pipe orifice are coaxial.

This butt joint structure closes two butt joint mouths of pipe of mirror surface symmetrical arrangement at jacket main duct position, respectively with main duct inner wall and submarine cable protection tube welded fastening, satisfying under the prerequisite of submarine cable protection tube setting at jacket main duct, solve because of the submarine cable protection tube can't be sealed the anticorrosive problem of main duct inner wall that brings, reduce the submarine cable construction degree of difficulty and the degree of wear of the position of closing simultaneously, have fine technological spreading value, have extensive application prospect in ocean engineering.

Compared with the traditional submarine cable protection pipe, the butt joint structure solves the problems that the submarine cable protection pipe cannot be sealed and the inside of the main guide pipe and the outside are connected on the premise that the inside of the jacket foundation submarine cable protection pipe is arranged, and reduces the construction difficulty of the submarine cable and the abrasion degree of the folding position.

If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected may be understood as: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an inside submarine cable protection tube butt joint structure of fan jacket basis which characterized in that: the submarine cable protection pipe comprises a jacket main guide pipe, submarine cable protection pipes and butt joint pipe orifices, wherein the submarine cable protection pipes are arranged in the jacket main guide pipe, the butt joint pipe orifices are arranged at two ends inside an inner hole of the jacket main guide pipe, the butt joint pipe orifices at the two ends are connected through the submarine cable protection pipes, and the butt joint pipe orifices are tapered pipe orifices with large outside and small inside.

2. The wind turbine jacket foundation internal submarine cable protection pipe butt joint structure according to claim 1, wherein: the butt joint mouth of pipe includes the guide tube that is the loudspeaker form, sets up the shrouding in the guide tube main aspects periphery, and the tip of guide tube is connected with the submarine cable protection tube tip, and the shrouding outer end is connected with jacket main duct inner wall.

3. The wind turbine jacket foundation internal submarine cable protection pipe butt joint structure according to claim 1, wherein: the submarine cable protection pipe is fixed with the main guide pipe in a support steel pipe welding mode.

4. The wind turbine jacket foundation internal submarine cable protection pipe butt joint structure according to claim 2, wherein: the small end of the guide pipe is welded and fixed with the end part of the submarine cable protection pipe, the sealing plate is annular, the inner ring of the sealing plate is welded and fixed with the large end of the guide pipe, and the outer ring of the sealing plate is welded and fixed with the inner wall of the main guide pipe of the jacket.

5. The wind turbine jacket foundation internal submarine cable protection pipe butt joint structure according to claim 1, wherein: the submarine cable protection pipe, the submarine cable protection pipe and the butt joint pipe orifice are coaxial.