CN210315637U - Offshore wind turbine single pile foundation with water purification function in pile - Google Patents
Offshore wind turbine single pile foundation with water purification function in pile Download PDFInfo
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- CN210315637U CN210315637U CN201821396679.0U CN201821396679U CN210315637U CN 210315637 U CN210315637 U CN 210315637U CN 201821396679 U CN201821396679 U CN 201821396679U CN 210315637 U CN210315637 U CN 210315637U
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Abstract
The utility model provides an offshore wind turbine single pile foundation with a water purification function in the pile, which is provided with a steel pipe pile body; the steel pipe pile body is provided with a water purification hole, and the water purification hole is positioned in the extremely low tide level and mud surface height range where the steel pipe pile is positioned. The utility model discloses a fan single pile basis steel-pipe pile sets up the water purification hole, and when the tide rises and falls or under the wave action, utilize inside and outside pressure differential of pile, replace the inside water with the external world of steel-pipe pile, guarantee pile body inside good water quality condition, improve pile body inside water quality condition, improve sacrificial anode work efficiency; the water body condition is improved, and the generation of peculiar smell gas is reduced. Meanwhile, the corrosion protection of the impressed current is avoided, the submarine cable and other parts are corroded, and the reliability of the fan foundation and the fan operation is ensured.
Description
Technical Field
The utility model relates to an offshore wind turbine single pile basis with water purification function in stake belongs to ocean engineering structure technical field.
Background
With the maturity of wind power generation technology, a mode of increasing energy supply by wind power generation is gradually favored by countries in the world. The vast ocean has attracted people's attention for its abundant and stable wind energy resources. China has a long coastline, and sea areas contain rich wind energy resources, and at present, offshore wind power development plans are made in coastal provinces such as Hebei, Shandong, Jiangsu, Zhejiang, Shanghai, Guangdong, Fujian and the like, wherein more offshore wind farm projects in Jiangsu province are started to construct and put into production for power generation.
The single-pile foundation is used as a foundation type which is most widely adopted in the field of offshore wind power engineering, and has the advantages of simple structure, quick construction and high cost performance; generally, a steel pipe pile with the diameter of 4-7 m is vertically driven into a seabed. In order to ensure that the steel pipe piles reach the design life, the interior of the steel pipe piles is usually designed to be corrosion-proof, for example, patent document No. ZL201720211655.2 discloses a single pile foundation of an offshore wind turbine with an internal sacrificial anode structure. After the single pile foundation pile sinking is completed, the original seawater inside the single pile foundation pile sinking can be always reserved, the water quality can be gradually deteriorated due to the fact that the seawater does not circulate, the working environment of the sacrificial anode is polluted, the output current is reduced, the protection potential cannot be reached, the working efficiency and performance of the sacrificial anode are seriously affected, and the anti-corrosion effect inside the steel pipe pile is threatened. In addition, if an impressed current anti-corrosion system is adopted inside and outside the pile body, H + is generated at the anode during chemical reaction, so that the pH value of the seawater which does not flow inside is reduced, the seawater is gradually acidic, and the submarine cable and other parts are gradually eroded. The water in the pile is not circulated, and the peculiar smell and the pungent gas are often generated, so that inconvenience is brought to the overhaul work of personnel.
SUMMERY OF THE UTILITY MODEL
The utility model solves the technical problem that: aiming at the existing problems, the offshore wind turbine single pile foundation with the water purifying function in the pile is simple in structure and convenient to construct, the water quality condition in the pile body is improved, the anti-corrosion protection effect of the internal sacrificial anode can be ensured, the corrosion of a submarine cable and other parts by an acidic water body is avoided, and the running reliability of the wind turbine is improved; reduce the production of peculiar smell gas in the water, improve personnel and overhaul the operational environment.
The utility model adopts the technical proposal that: a single pile foundation of an offshore wind turbine with a function of purifying water in a pile is provided with a steel pipe pile body; the method is characterized in that: the water inlet hole is positioned in the range from the extreme low-tide level to the height of a mud surface, the water inlet hole can be used for communicating the inside and the outside of the pile body during tide rising so as to enable the water level in the pile body to rise to be consistent with the sea level, and water in the pile body is drained outwards through the water purifying hole during tide falling so as to be circulated and reciprocated; meanwhile, under the action of waves, the steel pipe pile can also replace the water body with the outside by utilizing the water purifying holes.
The water purifying holes are positioned in the area below the extreme low tide level and above the mud surface.
And a sacrificial anode string or an impressed current mode is adopted for corrosion protection in the pile body of the steel pipe pile.
The water purifying holes are formed in the steel pipe pile body during onshore machining.
The opening direction of the water purifying holes forms 90 degrees with the vertical direction.
The water purifying holes are elliptical holes, the vertical width ratio is 2: 1-3: 1, the length of a vertical opening is 180-450 mm, the horizontal width is 60-150 mm, and the specific size of the opening is determined according to a structural calculation result.
2-4 water purification holes are uniformly distributed on the circumference, and the specific number is determined according to the structural calculation result.
Clear water hole along the vertical 1~2 row that sets up of pile body, set up one row below extreme low tide level when the depth of water is less shallow, when the depth of water is more deep, can respectively set up one row in position more than extreme low tide level and mud.
The utility model has the advantages that: the water purification holes are formed in the steel pipe pile of the single-pile foundation of the fan, and when tide rises and falls or under the wave action, the internal water body of the steel pipe pile is replaced with the outside by utilizing the pressure difference between the inside and the outside of the pile, so that the good water quality condition in the pile body is ensured, the internal water quality condition of the pile body is improved, and the working efficiency of the sacrificial anode is improved; meanwhile, when the impressed current is protected from corrosion, the submarine cable and other parts are prevented from being corroded by acid, and the reliability of the fan foundation and the running of the fan is ensured; reduce the production of peculiar smell gas in the water, improve personnel and overhaul the operational environment.
Drawings
Fig. 1 is an overall schematic diagram of an embodiment of the present invention.
Fig. 2 is an enlarged sectional view a-a at the water purification hole in fig. 1.
Fig. 3 is an enlarged schematic view of a water purification hole according to an embodiment of the present invention.
Fig. 4 is an enlarged view of a water purification hole elevation according to an embodiment of the present invention.
Detailed Description
As shown in figure 1, the single pile foundation of the offshore wind turbine with the water purifying function in the pile of the utility model is provided with a steel pipe pile 1 and a sacrificial anode 3. A water purifying hole 2 is formed in the pile body of the steel pipe pile 1, the water purifying hole 2 is an elliptical hole (shown in figure 2), the hole is formed from the outer wall of the steel pipe pile 1 to the inner wall of the steel pipe pile 1 in the horizontal direction, and the angle between the water purifying hole 2 and the vertical direction is 90 degrees (shown in figure 4).
In the embodiment, the water purifying holes 2 are formed on land, the size of the water purifying holes 2 is 300mm multiplied by 100mm, and 2 water purifying holes are uniformly distributed on the circumference (figures 2 and 3).
The clear water pores 2 are arranged 1m below the extreme low tide level in this example.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art can change, add or replace the above examples within the scope of the present invention.
Claims (9)
1. A single pile foundation of an offshore wind turbine with a function of purifying water in a pile is provided with a steel pipe pile body; the method is characterized in that: the steel pipe pile body is provided with a water purification hole, and the water purification hole is positioned in the range of the extreme low tide level and the mud surface where the steel pipe pile is positioned.
2. The offshore wind turbine single pile foundation with water purification function in pile according to claim 1, characterized in that: and a sacrificial anode string is arranged in the pile body of the steel pipe pile.
3. The offshore wind turbine single pile foundation with water purification function in pile according to claim 1, characterized in that: the steel pipe pile adopts the corrosion protection of impressed current.
4. The offshore wind turbine single pile foundation with water purification function in pile according to claim 1, characterized in that: the water purification hole is arranged on land during processing and manufacturing.
5. The offshore wind turbine single pile foundation with in-pile water purification function according to claim 1, 2 or 3, wherein: the water purifying holes are positioned in the area below the extreme low tide level and above the mud surface.
6. The offshore wind turbine single pile foundation with in-pile water purification function according to claim 1, 2 or 3, wherein: the opening direction of the water purifying holes forms 90 degrees with the vertical direction.
7. The offshore wind turbine single pile foundation with in-pile water purification function according to claim 1, 2 or 3, wherein: the water purifying holes are elliptical holes, the vertical width ratio is 2: 1-3: 1, the vertical opening length is 180-450 mm, and the horizontal width is 60-150 mm.
8. The offshore wind turbine single pile foundation with in-pile water purification function according to claim 1, 2 or 3, wherein: the circumference of the water purifying holes is symmetrically distributed with 2-4 holes.
9. The offshore wind turbine single pile foundation with water purifying function in the pile according to claim 1, wherein the water purifying holes are vertically arranged in 1-2 rows along the pile body, one row is arranged below the extreme low tide level when the water depth is shallow, and the other row is arranged above the extreme low tide level and the mud when the water depth is deep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821396679.0U CN210315637U (en) | 2018-08-28 | 2018-08-28 | Offshore wind turbine single pile foundation with water purification function in pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821396679.0U CN210315637U (en) | 2018-08-28 | 2018-08-28 | Offshore wind turbine single pile foundation with water purification function in pile |
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| Publication Number | Publication Date |
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| CN210315637U true CN210315637U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821396679.0U Active CN210315637U (en) | 2018-08-28 | 2018-08-28 | Offshore wind turbine single pile foundation with water purification function in pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878352A (en) * | 2021-01-13 | 2021-06-01 | 上海电气风电集团股份有限公司 | Single pile foundation |
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2018
- 2018-08-28 CN CN201821396679.0U patent/CN210315637U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878352A (en) * | 2021-01-13 | 2021-06-01 | 上海电气风电集团股份有限公司 | Single pile foundation |
| CN112878352B (en) * | 2021-01-13 | 2022-07-05 | 上海电气风电集团股份有限公司 | Single pile foundation |
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