CN111636492A - Wind power foundation protection system, offshore wind turbine generator system and offshore wind farm - Google Patents
Wind power foundation protection system, offshore wind turbine generator system and offshore wind farm Download PDFInfo
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- CN111636492A CN111636492A CN202010607719.7A CN202010607719A CN111636492A CN 111636492 A CN111636492 A CN 111636492A CN 202010607719 A CN202010607719 A CN 202010607719A CN 111636492 A CN111636492 A CN 111636492A
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- wind power
- protection system
- foundation
- offshore wind
- impressed current
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
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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
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
- E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/22—Foundations specially adapted for wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Paleontology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Wind Motors (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention relates to the technical field of offshore wind power, in particular to a wind power foundation protection system, an offshore wind turbine generator and an offshore wind farm. A wind power foundation protection system comprises a single pile foundation and an impressed current protection device arranged on the single pile foundation. Compared with the prior art which adopts a sacrificial anode protection method, the protection device adopting the impressed current mode has simple structure and convenient assembly, and simultaneously, the impressed current can protect the steel pile in the sea mud area and can also play a better protection effect even on the sea bottom clay layer with higher resistivity, thereby realizing the comprehensive protection of the steel pile.
Description
Technical Field
The invention relates to the technical field of offshore wind power, in particular to a wind power foundation protection system, an offshore wind turbine generator and an offshore wind farm.
Background
China has abundant offshore wind resources, and meanwhile, the offshore wind resources are developed economically and are in short supply in coastal areas of the east of China, so that the development of offshore wind power becomes an important content of strategic energy of China.
Offshore wind power basic equipment is susceptible to salt spray, ocean atmosphere, spray splash and the like to cause equipment corrosion. In the prior art, in order to protect an offshore wind power steel structure and the like, a cathode protection mode is generally adopted. The existing offshore wind power single pile foundation mostly adopts a sacrificial anode cathode protection mode, the sacrificial anode is mainly installed in a mode of an anode group surrounding a steel pile, the added anode group is heavy and complex to install, and the sacrificial anode is difficult to completely protect the steel pile in some sea mud areas, particularly the lowest 20 m area of the steel pile.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the protection mode of the sacrificial anode in the offshore wind power foundation in the prior art cannot realize full-coverage protection and has a complex structure, so that a wind power foundation protection system, an offshore wind turbine generator and an offshore wind power plant are provided.
In order to solve the problems, the invention provides a wind power foundation protection system which comprises a single pile foundation and an impressed current protection device arranged on the single pile foundation.
Furthermore, a support is arranged on the outer peripheral surface of the single-pile foundation, and the impressed current protection device is arranged on the support.
Further, the impressed current protection device comprises: at least one auxiliary anode; a reference electrode disposed corresponding to the auxiliary anode; and an electrical control device in communicative connection with the auxiliary anode.
Further, the auxiliary anode and the reference electrode are disposed at the bottom of the support.
Further, the electric control device is arranged at the upper end of the single-pile foundation, and the auxiliary anode and the reference electrode are connected with the electric control device through cables.
Further, the support is an aerial ladder structure extending along the height direction of the single-pile foundation, handrails on two sides of the aerial ladder structure are constructed into hollow structures, and the cables are connected in the handrails in a penetrating mode.
The wind power foundation protection system also comprises a remote monitoring device which is in communication connection with the electric control device.
The invention also provides an offshore wind power generation unit comprising any one of the wind power foundation protection systems.
The invention also provides an offshore wind farm, comprising: an offshore booster station; and a plurality of offshore wind power generation sets connected with the offshore booster station.
The technical scheme of the invention has the following advantages:
1. the wind power foundation protection system comprises a single-pile foundation and an impressed current protection device arranged on the single-pile foundation.
Compared with the prior art which adopts a sacrificial anode protection method, the protection device adopting the impressed current mode has simple structure and convenient assembly, and simultaneously, the impressed current can protect the steel pile in the sea mud area and can also play a better protection effect even on the sea bottom clay layer with higher resistivity, thereby realizing the comprehensive protection of the steel pile.
2. According to the wind power foundation protection system, the support is arranged on the outer peripheral surface of the single pile foundation, the impressed current protection device is arranged on the support, and the corresponding impressed current packaging device can be installed by adding the corresponding support structure. The increased structural parts are few, and the installation is convenient.
3. The externally-applied current protection device in the wind power foundation protection system comprises: at least one auxiliary anode; a reference electrode disposed corresponding to the auxiliary anode; and an electrical control device in communicative connection with the auxiliary anode. The auxiliary anode is connected with the positive electrode of a direct current power supply in an impressed current cathodic protection system and has the function of enabling impressed cathodic current to flow from the anode to a protected body through a medium to form a current loop. The reference electrode is used as a reference comparison electrode for checking the protection effect of the auxiliary anode. The electric control device comprises a constant potential rectifier and can automatically keep the auxiliary anode within a set potential range.
4. In the wind power foundation protection system, the auxiliary anode and the reference electrode are arranged at the bottom of the support, so that a barge or a subsequent ship can be prevented from being impacted in the subsequent process of hoisting the tower drum by the fan, and the auxiliary anode and the reference electrode are protected.
5. The electric control device in the wind power foundation protection system is arranged at the upper end of the single pile foundation, and the auxiliary anode, the reference electrode and the electric control device are connected through cables. The electric control device is arranged at the upper end part of the single-pile foundation, and the upper end part of the single-pile foundation is provided with the operating platform, so that maintenance personnel can conveniently install and debug the whole impressed current protection system.
6. The support in the wind power foundation protection system is an aerial ladder structure extending along the height direction of a single-pile foundation, handrails on two sides of the aerial ladder structure are constructed into hollow structures, and cables penetrate through the handrails. Firstly, the bracket can be used as an aerial ladder structure while realizing the installation of an impressed current protection device, thereby facilitating the construction of operators on a single-pile foundation, improving the utilization rate of the structure and reducing the using amount of a steel structure on the whole single-pile foundation. Furthermore, handrails on two sides of the aerial ladder structure are designed into a hollow structure, and cables are connected in the hollow structure in a penetrating manner, so that the protection effect on the cables can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a wind power foundation protection system in embodiment 1 provided by the present invention.
Description of reference numerals:
1-single pile foundation;
2-a protection device; 21-an auxiliary anode; 22-a reference electrode; 23-an electronic control device; 24-a cable;
and 3, supporting.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1, the wind power foundation protection system provided for this embodiment includes a single-pile foundation 1 and an impressed current protection device 2 disposed on the single-pile foundation 1.
The method that adopts impressed current realizes the cathodic protection to the single pile basis in this embodiment, compares in the prior art and adopts the protection method of sacrificial anode, adopts the simple structure of the protection device that impressed current's mode corresponds, and the equipment is convenient, and simultaneously, impressed current can compromise the protection of sea mud district steel pile, also can exert better protecting effect to the seabed clay layer that the resistivity is higher even to the realization is to the comprehensive protection of steel pile.
As shown in fig. 1, a bracket 3 is detachably attached to the outer peripheral surface of the mono pile foundation 1 in the present embodiment, and an impressed current protection device 2 is attached to the bracket 3. In the actual production process, after the support 3 is processed in a processing plant, the impressed current protection device 2 is preassembled between the processing plant and the support 3 and integrally mounted on the single-pile foundation 1, so that the mounting efficiency is improved, and the steps of construction site mounting are simplified.
Of course, in other embodiments, the bracket 3 may be mounted on the single pile foundation 1, and then the impressed current protection device 2 may be mounted on the bracket 3.
The impressed current protection device 2 in the present embodiment includes: at least one auxiliary anode 21; a reference electrode 22 provided corresponding to the auxiliary anode 21; and an electronic control device 23 communicatively connected to the auxiliary anode 21. The auxiliary anode 21 is connected with the positive electrode of the direct current power supply in the impressed current cathodic protection system, and the impressed current cathode is used for enabling the impressed current to flow from the anode to the protected body through the medium to form a current loop. The reference electrode 22 serves as a reference comparison electrode for checking the protective effect of the auxiliary anode 21. The electric control device 23, which comprises a potentiostat, can automatically keep the auxiliary anode 21 within the set potential range.
Further, the auxiliary anode 21 and the reference electrode 22 are arranged at the bottom of the support 3, a beam structure suitable for mounting the auxiliary anode 21 and the reference electrode 22 is processed at the bottom of the support 3, and in the subsequent hoisting process of the tower drum by the fan, the collision of a barge or a subsequent ship can be prevented, so that the auxiliary anode 21 and the reference electrode 22 are protected.
Of course, in other embodiments, a ring beam may be machined around the circumference of the mono-pile foundation 1 at the bottom of the support 3 to mount the auxiliary anode 21 and the reference electrode 22.
The electric control device 23 in this embodiment is installed at the upper end of the single-pile foundation 1, and the upper end of the single-pile foundation 1 is designed with an operation platform, so that maintenance personnel can conveniently install and debug the whole impressed current protection system. And the auxiliary anode 21, the reference electrode 22 and the electric control device 23 are connected through a cable 24.
As shown in fig. 1, the support 3 is an aerial ladder structure extending along the height direction of the single pile foundation 1, the handrails at both sides of the aerial ladder structure are constructed into a hollow structure, and the cable 24 is threaded in the handrails. Firstly, the support 3 in this embodiment can also be used as aerial ladder structure when can realizing the installation impressed current protection device 2, makes things convenient for the construction of operating personnel on single pile foundation, has improved the utilization ratio of structure, has reduced the quantity of steel construction on the whole single pile foundation 1. Furthermore, handrails on two sides of the aerial ladder structure are designed into a hollow structure, and cables are connected in the hollow structure in a penetrating manner, so that the protection effect on the cables can be realized.
Further, the present embodiment further includes a remote monitoring device, which is connected to the electronic control device 23 in a communication manner. The corrosion prevention measures of the common marine structure can be basically detected and measured in a manual field, and the state of the protected structure is determined according to the field detection result. However, offshore wind farms are usually located in the sea far from the coastline, the straight-line distance is usually several seas, the channel distance is longer, the area of the wind farm is dozens of square kilometers, and hundreds of wind power generation sets are distributed in the range, so that daily maintenance and detection are quite difficult, problems cannot be found at the first time by adopting a common manual mode, the workload of the wind farm with a large area is quite huge, and the detection cannot be completed in a short time. In this embodiment, centralized collection, analysis and arrangement of the cathodic protection data are realized by setting the remote monitoring device, the data can be acquired and analyzed in real time in a remote monitoring mode, and the cathodic protection system is adjusted in time according to an analysis result, so that the whole cathodic protection system is always in an optimal working state, and digital, information and automatic management of the cathodic protection system is really realized.
Example 2
The embodiment provides a wind turbine generator, which includes the wind power foundation protection system in embodiment 1, and has all technical advantages thereof, which are not described herein in detail.
Example 3
The embodiment provides an offshore wind farm, which comprises an offshore booster station and a plurality of wind turbines electrically connected with the offshore booster station in the embodiment 2.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. The wind power foundation protection system is characterized by comprising a single-pile foundation (1) and an impressed current protection device (2) arranged on the single-pile foundation (1).
2. The wind power foundation protection system according to claim 1, wherein a support (3) is arranged on the outer peripheral surface of the single pile foundation (1), and the impressed current protection device (2) is arranged on the support (3).
3. Wind power foundation protection system according to claim 2, characterized in that said impressed current protection device (2) comprises:
at least one auxiliary anode (21);
a reference electrode (22) provided in correspondence with the auxiliary anode (21);
and an electronic control device (23) communicatively connected to the auxiliary anode (21).
4. Wind power foundation protection system according to claim 3, characterized in that said auxiliary anode (21) and said reference electrode (22) are arranged at the bottom of said support (3).
5. Wind power foundation protection system according to claim 4, characterized in that the electric control device (23) is arranged at the upper end of the mono-pile foundation (1), and the auxiliary anode (21) and the reference electrode (22) are connected with the electric control device (23) through cables (24).
6. Wind power foundation protection system according to claim 5, characterized in that the support (3) is an aerial ladder structure extending along the height direction of the single pile foundation (1), the handrails at two sides of the aerial ladder structure are constructed into a hollow structure, and the cable (24) is threaded into the handrails.
7. Wind power foundation protection system according to any of claims 3-6, further comprising a remote monitoring device in communication connection with said electric control device (23).
8. An offshore wind turbine, comprising:
the wind power foundation protection system of any one of claims 1-7.
9. An offshore wind farm, comprising:
an offshore booster station;
and a plurality of offshore wind turbines as described in claim 8 connected to said offshore booster station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010607719.7A CN111636492A (en) | 2020-06-29 | 2020-06-29 | Wind power foundation protection system, offshore wind turbine generator system and offshore wind farm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010607719.7A CN111636492A (en) | 2020-06-29 | 2020-06-29 | Wind power foundation protection system, offshore wind turbine generator system and offshore wind farm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111636492A true CN111636492A (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010607719.7A Pending CN111636492A (en) | 2020-06-29 | 2020-06-29 | Wind power foundation protection system, offshore wind turbine generator system and offshore wind farm |
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| CN (1) | CN111636492A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250235A (en) * | 2021-05-24 | 2021-08-13 | 江苏科技大学 | Truss type single pile based on offshore wind turbine |
-
2020
- 2020-06-29 CN CN202010607719.7A patent/CN111636492A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250235A (en) * | 2021-05-24 | 2021-08-13 | 江苏科技大学 | Truss type single pile based on offshore wind turbine |
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