CN111987649A - Arrangement method of offshore wind field cable - Google Patents
Arrangement method of offshore wind field cable Download PDFInfo
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- CN111987649A CN111987649A CN202010825696.7A CN202010825696A CN111987649A CN 111987649 A CN111987649 A CN 111987649A CN 202010825696 A CN202010825696 A CN 202010825696A CN 111987649 A CN111987649 A CN 111987649A
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- submarine cable
- cable
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- wind turbines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/10—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses an arrangement method of offshore wind field cables, which comprises a transformer substation and a plurality of wind turbines, wherein the transformer substation is connected with diving equipment through a submarine cable and supplies power and sends data to the diving equipment, the diving equipment lays the submarine cable between the transformer substation and the adjacent wind turbines and conveys the submarine cable to a bearing device at the bottom of the adjacent wind turbines, the bearing device lifts and conveys a submarine cable joint to the adjacent wind turbines, similarly, the diving equipment is connected between the adjacent two wind turbines through the submarine cable, the diving equipment lays the submarine cable between the wind turbines and the adjacent wind turbines and conveys the submarine cable to the bearing device at the bottom of the adjacent wind turbines, and the bearing device lifts and conveys the submarine cable joint to the adjacent wind turbines. The overall submarine cable installation process greatly reduces the need for divers and waterborne vessels, and reduces the impact of the marine environment on the installation process.
Description
Technical Field
The invention relates to the field of submarine cable installation, in particular to a method for arranging offshore wind field cables.
Background
Laying and laying cables underwater is a very difficult task. Installation of submarine cables is very difficult because it requires divers and machinery to dig trenches, placing the cables, which may range in depth from a few meters to hundreds of meters, or even kilometers. At these depths, where the pressure is several times that at the surface, visibility conditions may be low or not present at all, thus making any operation under water difficult.
Also, even though the cable may be buried in the sea floor, installation of the submarine cable requires certain tasks to be performed on the water level, such as connecting the cable to other cables or connectors. Therefore, it is difficult to pull the end of the cable to the surface to make the connection.
Installation of a submarine cable is not limited to first deploying the cable when building a new offshore facility. In particular, sea cables are prone to failure or breakage due to the harsh conditions to which they are subjected, such as the high pressures mentioned above, sea currents, corrosion, and the like. Therefore, frequent cable replacement may be required. Delayed replacement of a broken cable can result in long outages, communication interruptions, and lost revenue economics.
Existing submarine cables are installed by connecting a vessel to a surface vessel which supplies electrical power to machines or vehicles via a cable so that the cable can be excavated and introduced into a trench.
The need for surface vessels limits the installation of submarine cables to periods when vessels are available (a limited number of vessels can do the installation of submarine cables) and when weather and sea conditions are favorable. When a submarine cable interconnects turbines or wave energy converters of an offshore wind farm, the strength of the wind and waves may impede the operation of the vessel. Even if the vessel does support these conditions, the tasks that need to be performed pose a high risk to the crew, especially divers. Thus, it may not be possible to install and/or replace the submarine cable for a long time.
Furthermore, the costs of using the vessel and its crew are high and the costs of the wind turbine or wave energy converter are gradually reduced due to the development of new and cost-effective components, while the installation costs of the whole cable are not reduced, mainly due to the grooving and laying of the cable, especially due to the need for the vessel.
Therefore, innovations in the field of submarine cable installation are considered necessary. How to reduce the demands on divers and waterborne vessels in the submarine cable installation process and reduce the influence of the marine environment on the installation process is an innovative direction.
Disclosure of Invention
In order to solve the technical problem, the invention designs a method for arranging offshore wind field cables.
The invention adopts the following technical scheme:
a method for arranging offshore wind field cables comprises a transformer substation and a plurality of wind turbines, wherein the transformer substation is connected with a diving device through a submarine cable and supplies power and sends data to the diving device, the diving device lays the submarine cable along a space between the transformer substation and an adjacent wind turbine and conveys the submarine cable to a bearing device at the bottom of the adjacent wind turbine, the bearing device lifts and conveys a submarine cable joint to the adjacent wind turbine, similarly, the diving device is connected between two adjacent wind turbines through the submarine cable, the diving device lays the submarine cable along a space between the wind turbine and the adjacent wind turbine and conveys the submarine cable to the bearing device at the bottom of the adjacent wind turbine, and the bearing device lifts and conveys the submarine cable joint to the adjacent wind turbine.
Preferably, the diving equipment comprises a base, a moving device is arranged at the bottom of the base, a box body is arranged on the base, a rotating disc is rotatably connected in the box body, a submarine cable roll is arranged on the rotating disc, at least one connector is arranged on the base, one end of the submarine cable is fixedly connected with the connector, a controller, a battery, a cable control mechanical arm and a tension controller are arranged on the base, the tail end of the cable control mechanical arm is connected with a control ring, and the controller is communicated with the connector, the battery, the cable control mechanical arm, the tension controller and the moving device.
Preferably, the moving device is composed of a motor, a rotating shaft, crawler wheels and a crawler belt.
Preferably, a wire channel is arranged on the base, and the output end of the submarine cable coil is guided to the tension controller through the wire channel.
Preferably, the bottom of the box body is provided with support legs, the bottom of the box body is provided with a hydraulic cylinder corresponding to the support legs, and the output ends of the hydraulic cylinders are respectively connected with the support legs.
Preferably, a trenching device is arranged behind the bottom of the base.
Preferably, the bearing device comprises a bearing frame, a fixed frame, a movable frame and a hinged seat are arranged on the bearing frame, the lower end of the bearing frame is fixedly connected with the hinged seat, the upper end of the bearing frame is fixedly connected with the fixed frame, the bottom of the fixed frame is fixedly connected with the hinged seat, the bottom end of the movable frame is hinged with the hinged seat, a winch is fixedly connected to the upper end of the bearing frame, a cable is arranged on the winch, the tail end of the cable is fixedly connected with the movable end of the movable frame, and the fixed frame and the movable frame are combined to.
Preferably, the diving equipment is provided with an acoustic positioning system for sensing the submarine acoustic beacon.
Preferably, the box body is a buoyancy box, and the buoyancy of the diving equipment can be controllably changed.
Preferably, the trenching assembly employs a V-plow.
The invention has the beneficial effects that: according to the arrangement method of the offshore wind field cables, the submarine cables are connected with the diving equipment through the submarine cables, power is supplied to the diving equipment, data are sent to the diving equipment, the submarine cables are laid between the transformer station and the adjacent wind turbines along the diving equipment, the submarine cables are conveyed to the bearing devices at the bottoms of the adjacent wind turbines, the bearing devices lift and carry submarine cable joints to the adjacent wind turbines, arrangement of the submarine cables of the whole offshore wind field is sequentially completed, the requirements of a diver and a water ship in the installation process of the whole submarine cables are greatly reduced, and the influence of the offshore environment on the installation process is reduced.
Drawings
FIG. 1 is a schematic layout of an offshore wind farm cable;
FIG. 2 is a schematic view of a diving apparatus according to the present invention;
FIG. 3 is a schematic view of a structure for installation of a submarine cable according to the present invention;
FIG. 4 is a schematic view of a structure for lifting and carrying the submarine cable according to the present invention;
in the figure: 1. substation, 2, wind turbine, 3, submarine cable, 4, base, 5, moving device, 6, box, 7, turntable, 8, submarine cable reel, 9, connector, 10, cable control mechanical arm, 11, control ring, 12, tension controller, 13, wire channel, 14, battery, 15, leg, 16, hydraulic cylinder, 17, additional connector, 18, additional cable plug, 19, trenching device, 20, carrying device, 21, fixed frame, 22, movable frame, 23, winch, 24, cable, 25, hinged seat.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example (b): as shown in fig. 1-4, a method for arranging cables in an offshore wind farm includes a transformer substation 1 and a plurality of wind turbines 2, wherein the transformer substation is connected with a diving device through a submarine cable 3 and supplies power and transmits data to the diving device, the diving device lays the submarine cable along the transformer substation and between adjacent wind turbines and conveys the submarine cable to a bearing device at the bottom of the adjacent wind turbines, the bearing device lifts and conveys a submarine cable joint to the adjacent wind turbines, similarly, the diving device is connected between the adjacent two wind turbines through the submarine cable, the diving device lays the submarine cable along the wind turbines and between the adjacent wind turbines and conveys the submarine cable to a bearing device 20 at the bottom of the adjacent wind turbines, and the bearing device lifts and conveys the submarine cable joint to the adjacent wind turbines.
The diving equipment comprises a base 4, a moving device 5 is arranged at the bottom of the base, a box body 6 is arranged on the base, a rotary disc 7 is connected in the box body in a rotating mode, a submarine cable coil 8 is arranged on the rotary disc, at least one connector 9 is arranged on the base, one end of the submarine cable is fixedly connected with the connector, a controller, a battery, a cable control mechanical arm 10 and a tension controller 12 are arranged on the base, the tail end of the cable control mechanical arm is connected with a control ring 11, and the controller is communicated with the connector, the battery 14, the cable control mechanical arm, the tension controller and the moving device. The moving device consists of a motor, a rotating shaft, crawler wheels and a crawler belt. The base is provided with a wire channel 13, and the output end of the submarine cable coil is guided to the tension controller through the wire channel. The bottom of the box body is provided with a support leg 15, the bottom of the box body is provided with a hydraulic cylinder 16 corresponding to the support leg, and the output end of the hydraulic cylinder is respectively connected with the support legs. The hydraulic cylinder is arranged as a buffer balancing device of the supporting leg. An additional connector 17 is provided on the base, which is connected to another cable by an additional cable plug 18.
A trenching apparatus 19 is provided at the rear of the base bottom. The ditching device adopts a V-shaped plough.
Bear the device including bearing the frame, bear and be provided with mount 21, adjustable shelf 22 and articulated seat 25 on the frame, bear the articulated seat of lower extreme fixed connection, bear the articulated mount of frame upper end, the articulated seat of mount bottom fixed connection, the adjustable shelf bottom is articulated with articulated seat, bear fixedly connected with capstan winch 23 on the frame upper end, the capstan winch hanging wall has hawser 24, the expansion end of the terminal fixed connection adjustable shelf of hawser, form two J-shaped seabed cable channels after mount and the combination of adjustable shelf.
The diving equipment is provided with an acoustic positioning system for sensing the submarine acoustic beacon.
The box body is a buoyancy box, and the buoyancy of the diving equipment can be controlled and changed.
When the method for arranging the offshore wind field cable is used, firstly, the submersible equipment is connected from a transformer substation through the submarine cable, power is supplied to the submersible equipment, data is sent to the submersible equipment, the submarine cable is laid between the transformer substation and an adjacent wind turbine by the submersible equipment, a V-shaped plough of the submersible equipment digs a ditch along a route, meanwhile, the submarine cable is placed into a cable control mechanical arm along the ditch through a control ring until the submarine cable is conveyed to a bearing device at the bottom of the adjacent wind turbine, a movable frame of the bearing device is lowered, the submersible equipment controls the cable control mechanical arm to pay off the submarine cable along the inner side of the movable frame, then a winch on the water surface at the upper end of the bearing frame is controlled to pull up the cable, the submarine cable is lifted up together when the movable frame is lifted up, then the submarine cable is cut off and connected into the wind turbine only by manual operation on the water surface, then, the overall submarine cable installation process greatly reduces the need for divers and waterborne vessels, and reduces the impact of the marine environment on the installation process.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (10)
1. A method for arranging offshore wind field cables comprises a transformer substation and a plurality of wind turbines, and is characterized in that the transformer substation is connected with diving equipment through a submarine cable and supplies power and sends data to the diving equipment, the diving equipment lays the submarine cable along a space between the transformer substation and an adjacent wind turbine and conveys the submarine cable to a bearing device at the bottom of the adjacent wind turbine, the bearing device lifts and conveys a submarine cable joint to the adjacent wind turbine, similarly, the diving equipment is connected between two adjacent wind turbines through the submarine cable, the diving equipment lays the submarine cable along a space between the wind turbine and the adjacent wind turbine and conveys the submarine cable to the bearing device at the bottom of the adjacent wind turbine, and the bearing device lifts and conveys the submarine cable joint to the adjacent wind turbine.
2. The method as claimed in claim 1, wherein the submersible plant comprises a base, a moving device is arranged at the bottom of the base, a box is arranged on the base, a rotating disc is rotatably connected in the box, a submarine cable coil is arranged on the rotating disc, at least one connector is arranged on the base, one end of the submarine cable is fixedly connected with the connector, a controller, a battery, a cable control mechanical arm and a tension controller are arranged on the base, a control ring is connected to the end of the cable control mechanical arm, and the controller is communicated with the connector, the battery, the cable control mechanical arm, the tension controller and the moving device.
3. The method for arranging offshore wind farm cables according to claim 2, wherein the moving means comprises a motor, a rotating shaft, crawler wheels and a crawler belt.
4. The method as claimed in claim 2, wherein the base is provided with a wire passage, and the output end of the submarine cable roll is guided to the tension controller through the wire passage.
5. The method for arranging the offshore wind farm cables according to claim 2, wherein the bottom of the box body is provided with support legs, the bottom of the box body is provided with hydraulic cylinders corresponding to the support legs, and output ends of the hydraulic cylinders are respectively connected with the support legs.
6. The method for arranging offshore wind farm cables according to claim 2, wherein a trenching assembly is provided behind the bottom of the base.
7. The method as claimed in claim 1, wherein the supporting device comprises a supporting frame, the supporting frame is provided with a fixed frame, a movable frame and a hinge seat, the lower end of the supporting frame is fixedly connected with the hinge seat, the upper end of the supporting frame is fixedly connected with the fixed frame, the bottom of the fixed frame is fixedly connected with the hinge seat, the bottom of the movable frame is hinged with the hinge seat, the upper end of the supporting frame is fixedly connected with a winch, the winch is provided with a cable, the end of the cable is fixedly connected with the movable end of the movable frame, and the fixed frame and the movable frame are combined to form two J-shaped submarine cable channels.
8. A method of deployment of offshore wind farm cables according to claim 2, wherein the diving equipment is provided with an acoustic positioning system for sensing submarine acoustic beacons.
9. The method of claim 2, wherein the box is a buoyancy tank for controllably varying the buoyancy of the submersible equipment.
10. The method of claim 6, wherein the trenching assembly comprises a V-plow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010825696.7A CN111987649A (en) | 2020-08-17 | 2020-08-17 | Arrangement method of offshore wind field cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010825696.7A CN111987649A (en) | 2020-08-17 | 2020-08-17 | Arrangement method of offshore wind field cable |
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| Publication Number | Publication Date |
|---|---|
| CN111987649A true CN111987649A (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010825696.7A Pending CN111987649A (en) | 2020-08-17 | 2020-08-17 | Arrangement method of offshore wind field cable |
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| CN (1) | CN111987649A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012007790A1 (en) * | 2010-07-12 | 2012-01-19 | Octio Geophysical As | System for subsea cable installation |
| CN109790697A (en) * | 2016-06-14 | 2019-05-21 | 泰克纳里阿研究与创新基金 | For installing the component and method of seabed cable |
-
2020
- 2020-08-17 CN CN202010825696.7A patent/CN111987649A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012007790A1 (en) * | 2010-07-12 | 2012-01-19 | Octio Geophysical As | System for subsea cable installation |
| CN109790697A (en) * | 2016-06-14 | 2019-05-21 | 泰克纳里阿研究与创新基金 | For installing the component and method of seabed cable |
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Application publication date: 20201124 |
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| RJ01 | Rejection of invention patent application after publication |