CN114370041A - Basic platform of offshore converter station - Google Patents
Basic platform of offshore converter station Download PDFInfo
- Publication number
- CN114370041A CN114370041A CN202111660046.2A CN202111660046A CN114370041A CN 114370041 A CN114370041 A CN 114370041A CN 202111660046 A CN202111660046 A CN 202111660046A CN 114370041 A CN114370041 A CN 114370041A
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- pile
- lifting device
- converter station
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- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000007667 floating Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 9
- 238000011900 installation process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
- E02B2017/0043—Placing the offshore structure on a pre-installed foundation structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
- E02B2017/0047—Methods for placing the offshore structure using a barge
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Foundations (AREA)
Abstract
The invention discloses a basic platform of an offshore converter station, which comprises a ship body, a support module, a lifting device and a power supply module, wherein the support module is arranged on the ship body; the support module comprises a guide frame and at least 4 fixing piles, and a fixing guide pipe for the fixing piles to penetrate through is arranged on the guide frame; the lifting device is arranged on the ship body, pile legs are arranged on the fixing piles and are in transmission connection with the lifting device, and the pile legs are used for supporting the load of the ship body through the lifting device. The platform can complete the installation process at sea through the lifting device per se, does not need large-scale offshore hoisting equipment for assistance, saves the engineering cost, does not need offshore hoisting operation, reduces the operation risk, saves the construction period, can stably operate in place for a long time, and has the advantage of convenient installation.
Description
Technical Field
The invention relates to the technical field of offshore buildings, in particular to an offshore converter station foundation platform.
Background
With the maturity of offshore wind power generation technology, people gradually favor the mode of generating power by utilizing offshore wind power. At present, offshore wind power plants are further and further away from the shore, and the transmission efficiency becomes one of the key indexes of the economy of the wind power plants, so that the adoption of a large offshore direct current converter station platform for converting alternating current into direct current to be transmitted to the land becomes an important technical means.
At present, the converter station foundation form which is the mainstream at home and abroad is the jacket foundation form, and the scheme has high installation cost and long installation period. Meanwhile, the installation precision of a structure with the span of nearly 100m needs to be controlled within 10mm in offshore construction, the operation cost is high, the construction difficulty is high, and the cost and the period are uncontrollable. And construction resources are in short supply. Therefore, a foundation platform of the offshore converter station, which is convenient for construction, is needed.
Disclosure of Invention
The embodiment of the invention aims to provide a foundation platform of an offshore converter station, which has the advantage of convenience in construction.
In order to achieve the above object, an embodiment of the present invention provides an offshore converter station foundation platform, which includes a hull, a support module, a lifting device, and a power supply module;
the support module comprises a guide frame and at least 4 fixing piles, and a fixing guide pipe for the fixing piles to penetrate through is arranged on the guide frame;
the lifting device is arranged on the ship body, pile legs are arranged on the fixing piles and are in transmission connection with the lifting device, and the pile legs are used for supporting the load of the ship body through the lifting device.
As an improvement of the scheme, the support module further comprises at least two positioning piles, and positioning guide pipes for the positioning piles to penetrate through are arranged on the guide frame.
As a modification of the above solution, the spud is provided with 4 strips.
As an improvement of the above scheme, the fixing pile is provided with 4, the guide frame is in a frame shape, the 4 fixing guide tubes are located at 4 corners of the guide frame, and the fixing guide tubes are perpendicular to a plane formed by the guide frame.
As a modification of the above, the positioning guide tube is located at the midpoint of two adjacent fixed guide tubes.
As an improvement of the scheme, a horizontal inclined strut is connected between two adjacent positioning guide tubes.
As an improvement of the scheme, the fixing pile sleeves one end of the pile leg, and a grouting gap is formed between the fixing pile and the pile leg.
As an improvement of the above scheme, the lifting device is arranged corresponding to the pile leg.
As an improvement of the above scheme, the power supply module is arranged outside the hull, and the power supply module comprises a fixed cable pile, which is installed on the seabed and supplies power to the hull through a cable.
The invention also provides an installation method of the foundation platform of the offshore converter station, which comprises the following steps:
s10 placing the guide frame to the seabed using the crane ship;
s20, positioning the positioning pile by using the positioning guide pipe, driving the positioning pile, leveling and fixing the guide frame;
s30, the fixed pile is driven into the seabed by a crane to pass through the fixed guide pipe;
s40, the lifting device is controlled to lift the pile legs, and the ship body is transported to the offshore operation position in a floating posture;
s50, after the ship body reaches the site of location, the lifting device is controlled to lower the pile legs, the pile legs are inserted into the fixed piles, the ship body is continuously lifted, the bottoms of the pile legs are in close contact with the fixed piles, the pile legs are continuously lifted at the moment, the load is slowly transferred to the pile tops and the pile legs of the fixed piles from the buoyancy, the ship body is continuously lifted to be separated from the water surface, and the interference of external loads such as waves and the like is avoided;
s60 grouting in the grouting gap between the fixed pile and the pile leg;
s70 driving the fixed cable pile.
Compared with the prior art, the platform can complete the installation process at sea through the lifting device per se, does not need large-scale offshore hoisting equipment for assistance, saves the engineering cost, does not need offshore hoisting operation at the same time, reduces the operation risk, saves the construction period, can stably operate in place for a long time, and has the advantage of being convenient for installation.
Drawings
FIG. 1 is a schematic diagram of a specific structure of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a guide frame in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention aims to provide a foundation platform of an offshore converter station, which has the advantage of convenience in construction. The specific scheme is as follows:
referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a guide frame 3 of an embodiment of the present invention.
A basic platform of an offshore converter station comprises a ship body 1, a support module, a lifting device 2 and a power supply module.
The support module comprises a guide frame 3 and at least 4 fixing piles 4, and a fixing guide pipe 5 for the fixing piles 4 to penetrate through is arranged on the guide frame 3; further detailing, in this embodiment, the spud pile 4 is provided with 4, the guiding frame 3 is in a frame-shaped configuration, 4 fixed guiding tubes 5 are located at 4 corners of the guiding frame 3, and the fixed guiding tubes 5 are perpendicular to the plane formed by the guiding frame 3.
The lifting device 2 is arranged on the ship body 1, the spud pile 4 is provided with a pile leg 6, the pile leg 6 is in transmission connection with the lifting device 2, and the pile leg 6 supports the load of the ship body 1 through the lifting device 2. Wherein, elevating gear 2 sets up with spud leg 6 corresponds.
The power supply module is arranged outside the ship body 1 and comprises a fixed cable pile 7, the fixed cable pile 7 is installed on the seabed, and power is supplied to the ship body 1 through cables.
It should be noted that, in this embodiment, when this platform is installed on the spot, it is necessary to place the guide frame 3 on the seabed of the installation site first, then fix the position and install the spud pile 4 through the fixed guide pipe 5, after the spud pile 4 is installed, control the lifting device 2 on the hull 1, move the spud leg 6 upwards, the hull 1 moves to the installation site with the floating posture, at the same time, it is necessary to correspond the spud leg 6 and the spud pile 4 to each other, then control the lifting device 2 again, control the spud leg 6 to move downwards, until the spud leg 6 inserts into the spud pile 4, it is enough to realize the overall load support of the hull 1, at this moment, the installation operation of the hull 1 is finished, finally, install the fixed cable pile 7 outside the hull 1, the fixed cable pile 7 supplies power to the hull 1 through the cable.
The platform can complete the installation process at sea by self through the lifting device 2, does not need large-scale offshore hoisting equipment for assistance, saves the engineering cost, does not need offshore hoisting operation at the same time, reduces the operation risk, saves the construction period, can stably operate in place for a long time, and has the advantage of convenient installation.
More preferably, in this embodiment, in order to further optimize the installation convenience of this platform, the support module still includes two at least spuds 8, is provided with the location stand pipe 9 that supplies spud 8 to wear to establish on the leading truck 3. Specifically, the spud 8 is provided with 4 pieces in the present embodiment.
The setting of spud 8 and location stand pipe 9 can play preliminary location effect to the installation of leading truck 3, and the mounting of spud 4 can be convenient for to location structure like this, finally improves the integral erection stability of platform.
Further, in the present embodiment, the positioning guide tube 9 is located at the midpoint of the adjacent two fixed guide tubes 5. Meanwhile, a horizontal inclined strut 10 is connected between two adjacent positioning guide pipes 9, so that the rigidity of the integral connecting structure of the guide frame 3 is improved.
More preferably, in this embodiment, the fixing pile 4 is sleeved on one end of the leg 6, and a grouting gap is provided between the fixing pile 4 and the leg 6.
Therefore, after the pile legs 6 and the fixing piles 4 are installed and positioned, grouting operation can be carried out on grouting gaps, and further the rigidity of the whole structure is improved.
The scheme also provides an installation method of the foundation platform of the offshore converter station, which comprises the following steps:
s10 placing the guide frame 3 to the seabed using a crane ship;
s20, positioning the positioning pile 8 by using the positioning guide pipe 9, driving the positioning pile 8, leveling and fixing the guide frame 3;
s30, the fixing pile 4 is driven into the seabed by a crane through the fixing guide pipe 5;
s40, the lifting device 2 is controlled to lift the pile legs 6, and the ship body 1 is transported to a maritime operation position in a floating posture;
s50, after the ship body 1 reaches a site of taking place, the lifting device 2 is controlled to lower the pile legs 6, the pile legs 6 are inserted into the fixing piles 4, the ship body 1 is continuously lifted, the bottoms of the pile legs 6 are in close contact with the fixing piles 4, the pile legs 6 are continuously lifted at the moment, the load is slowly transferred to the pile tops of the fixing piles 4 and the pile legs 6 through buoyancy, the ship body 1 is continuously lifted to be separated from the water surface, and the interference of external loads such as waves is avoided;
s60 performing grouting work in the grouting gap between the spud pile 4 and the leg 6;
s70 driving the fixed cable pile 7.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A basic platform of an offshore converter station is characterized by comprising a ship body, a support module, a lifting device and a power supply module;
the support module comprises a guide frame and at least 4 fixing piles, and a fixing guide pipe for the fixing piles to penetrate through is arranged on the guide frame;
the lifting device is arranged on the ship body, pile legs are arranged on the fixing piles and are in transmission connection with the lifting device, and the pile legs are used for supporting the load of the ship body through the lifting device.
2. The offshore converter station foundation platform of claim 1, wherein the support module further comprises at least two positioning piles, and the guide frame is provided with a positioning guide tube for the positioning piles to penetrate through.
3. The offshore converter station foundation platform of claim 2, wherein said spud is provided with 4 pieces.
4. The offshore converter station foundation platform of claim 3, wherein said spud is provided with 4 guide posts, said guide frame is in a frame-shaped configuration, and 4 said fixed guide tubes are located at 4 corners of said guide frame, said fixed guide tubes being perpendicular to a plane formed by said guide frame.
5. The offshore converter station foundation platform of claim 5, wherein said positioning guide tube is located at a midpoint of two adjacent said fixed guide tubes.
6. The offshore converter station foundation platform of claim 5, wherein a horizontal brace is connected between two adjacent positioning guide tubes.
7. The offshore converter station foundation platform of claim 1, wherein the spud pile is sleeved at one end of the leg, and a grouting gap is provided between the spud pile and the leg.
8. The offshore converter station foundation platform of claim 1, wherein said lifting device is disposed in correspondence with said legs.
9. The offshore converter station foundation platform of claim 1, wherein the power module is disposed outside the hull, the power module comprising a stationary bollard mounted on a seabed for supplying power to the hull via a cable.
10. A method for installing a foundation platform of an offshore converter station is characterized by comprising the following steps:
s10 placing the guide frame to the seabed using the crane ship;
s20, positioning the positioning pile by using the positioning guide pipe, driving the positioning pile, leveling and fixing the guide frame;
s30, the fixed pile is driven into the seabed by a crane to pass through the fixed guide pipe;
s40, the lifting device is controlled to lift the pile legs, and the ship body is transported to the offshore operation position in a floating posture;
s50, after the ship body reaches the site of location, the lifting device is controlled to lower the pile legs, the pile legs are inserted into the fixed piles, the ship body is continuously lifted, the bottoms of the pile legs are in close contact with the fixed piles, the pile legs are continuously lifted at the moment, the load is slowly transferred to the pile tops and the pile legs of the fixed piles from the buoyancy, the ship body is continuously lifted to be separated from the water surface, and the interference of external loads such as waves and the like is avoided;
s60 grouting in the grouting gap between the fixed pile and the pile leg;
s70 driving the fixed cable pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111660046.2A CN114370041A (en) | 2021-12-30 | 2021-12-30 | Basic platform of offshore converter station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111660046.2A CN114370041A (en) | 2021-12-30 | 2021-12-30 | Basic platform of offshore converter station |
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| Publication Number | Publication Date |
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| CN114370041A true CN114370041A (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111660046.2A Pending CN114370041A (en) | 2021-12-30 | 2021-12-30 | Basic platform of offshore converter station |
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| CN (1) | CN114370041A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012379A (en) * | 2022-06-16 | 2022-09-06 | 中国能源建设集团广东省电力设计研究院有限公司 | Self-installation and reinforcement method for offshore converter station platform |
| CN115613578A (en) * | 2022-11-08 | 2023-01-17 | 浙江大学 | Guide frame, jacket pile-first construction method and suction tube type penetration construction method |
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2021
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| CN107152027A (en) * | 2017-06-22 | 2017-09-12 | 广东华尔辰海上风电工程有限责任公司 | Offshore wind farm multi-column pier foundation pile sinking construction method and special leading truck |
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| CN115613578A (en) * | 2022-11-08 | 2023-01-17 | 浙江大学 | Guide frame, jacket pile-first construction method and suction tube type penetration construction method |
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