CN212250337U - Offshore floating type fan with underwater damping device - Google Patents
Offshore floating type fan with underwater damping device Download PDFInfo
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- CN212250337U CN212250337U CN202020937404.4U CN202020937404U CN212250337U CN 212250337 U CN212250337 U CN 212250337U CN 202020937404 U CN202020937404 U CN 202020937404U CN 212250337 U CN212250337 U CN 212250337U
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- damper
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- base
- wind turbine
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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
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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
- Y02E10/727—Offshore wind turbines
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Abstract
The utility model discloses an offshore floating type fan with an underwater damping device, which comprises a fan, a tower barrel, a base, a bracket and a damper; the top end and the bottom end of the tower are respectively connected with the fan and the base, the support is arranged on the base, the damper is arranged in water below the base, and the damper is connected with the support; the damper is connected with the bracket through a suspension line; the dampers are connected through damper connecting rods; the support is also connected with an anchoring device through an anchor chain cable, and the anchoring device is fixed on the seabed; when the fan is under the action of strong wind, the inertia of the damper can convert the wind acting force into slow damping motion, the action of wind on the fan is effectively resisted, the overall swing amplitude of the fan is reduced, meanwhile, the stress of a part of mooring systems such as anchor chain cables, anchoring devices and the like is reduced, the fatigue of the mooring systems is avoided, the service life is prolonged, the stability of the floating fan is improved, the fatigue of the fan and the mooring systems is reduced, and the floating fan has good economic benefits and application prospects.
Description
Technical Field
The utility model belongs to the technical field of marine wind power, concretely relates to marine floating fan with damping device under water.
Background
Offshore wind power will move to the deep sea as offshore wind resources are developed. In the area with water depth more than 50 meters, the traditional foundation fixed type wind level construction cost is too high, the foundation reliability is poor, the traditional foundation fixed type wind level construction method is not applicable, and only a floating type fan can be selected. However, the floating type fan is acted by wind, waves and currents on the sea, and generates motions such as rolling, pitching, yawing, heaving, translation, rotation and the like on six degrees of freedom.
The floating wind turbine generally adopts an anchoring system and is fixed on the seabed through anchor chain cable traction. The floating type fan continuously moves on the water surface, alternate and multi-angle pulling is carried out on the anchor chain cable, the anchor chain cable is easy to fatigue under frequent relaxation acting force, and finally the anchor chain cable is broken to cause the fan to be separated from a preset position.
A damper is a commonly used vibration damping device. For high-rise buildings, such as skyscrapers, damping balls having a large mass are often installed. When the building is subjected to strong wind or earthquake, the damping balls in the building move freely to offset a part of acting force, so that the swing amplitude of the building is reduced, and the stability of the building is improved.
The height of the large floating wind turbine generator is over 100 meters, and due to the fact that a fixed foundation is not arranged, the swing amplitude of the large floating wind turbine generator under the action of strong wind often reaches 5-10 degrees, and the stability and the safety of the large floating wind turbine generator are affected. The motion of excessively large amplitude has great influence on the stability of the whole fan, and serious accidents such as overturning, overturning and the like are easy to occur.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model provides a marine floating fan with damping device under water, at floating fan lower part aquatic attenuator, through the damping motion of heavy object, offset some wind, unrestrained effort to floating fan, reduce floating fan swing range, alleviate the fatigue of anchor chain cable, improve fan stability and security.
In order to achieve the purpose, the utility model adopts the technical scheme that the offshore floating type fan with the underwater damping device comprises a fan, a tower cylinder, a base, a bracket and a damper;
the top end and the bottom end of the tower are respectively connected with the fan and the base, the support is arranged on the base, the damper is arranged in water below the base, and the damper is connected with the support;
the damper is connected with the bracket through a suspension line; the dampers are connected through damper connecting rods;
the support is also connected with an anchoring device through an anchor chain cable, and the anchoring device is fixed on the seabed.
The damper is a solid counterweight object with a density of more than 4000kg/m and adopts a round, square, spindle or irregular shape3Volume of 100 to 1000m3。
The support and the base adopt a cantilever beam type connecting structure, the support adopts a rod structure or a truss structure, the base adopts a cylindrical box structure, and one or more auxiliary stay bars are arranged to connect the support and the base.
The support and the base are of an integrated structure.
The damper is arranged at least one, and if the number of the dampers is more than one, the two dampers are connected through a damper connecting rod.
The outer surfaces of the base, the support, the damper connecting rod and the damper are all provided with corrosion-resistant layers.
The connecting support and the damper are connected through a suspension line, the suspension line is made of rigid materials, and two ends of the suspension line are connected with the support and the damper through buckles.
The number of the supports, the anchor chain cables and the anchoring devices is 3-6, the supports, the anchor chain cables and the anchoring devices are evenly arranged on the periphery of the base, and each anchor chain cable is fixedly connected with 1 anchoring device.
The fan is connected with the tower drum through a flange plate, and the tower drum is connected with the base through the flange plate.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model discloses an offshore floating fan with damping device under water, the fan has the attenuator under water, the attenuator has great quality and inertia, when the fan received strong wind to act on, the inertia of attenuator can turn into slow damping motion with wind effort, effectively support the effect of anti-wind to the fan, reduce the holistic amplitude of oscillation of fan, improve fan structure stability, the atress of partly anchor chain cable and anchor mooring system has been reduced simultaneously, mooring system's fatigue has been avoided, and service life is prolonged, help improving floating fan's stability, fan and mooring system's fatigue has been reduced, and the marine floating fan has good economic benefits and application prospect.
Furthermore, the support adopts a truss structure or is combined with the diagonal brace for use, so that the weight of the fan foundation is reduced and the manufacturing cost is reduced while stable support is achieved.
Furthermore, according to the weight and load analysis of the whole structure of the fan, the number and the quality of the dampers are designed, and the stability of the whole structure of the fan is guaranteed.
Furthermore, rigid connection is adopted before damping, integrity and stability of the damper are improved, and influence of strong wind on the fan is reduced better.
Furthermore, the number of the anchor chain cables and the fixing mode of the anchor chain cables and the anchoring device are selected according to actual conditions, and the most stable fixing mode is achieved.
Furthermore, the outer surfaces of the base, the support and the damper are all provided with corrosion-resistant layers, so that the device can be prevented from being damaged by seawater corrosion, and the service life and the safety of the device are improved.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
in the figure: 1-a fan, 2-a tower barrel, 3-a base, 4-a support, 5-a suspension line, 6-a damper connecting rod, 7-a damper, 8-an anchor chain cable and 9-an anchoring device.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;
in the figure: 1-a fan, 2-a tower barrel, 3-a base, 4-a support, 5-a suspension line, 6-a damper connecting rod, 7-a damper, 8-an anchor chain cable and 9-an anchoring device.
Detailed Description
Referring to fig. 1 and 2, the present invention provides an offshore floating wind turbine with an underwater damping device, which includes a wind turbine 1, a tower 2, a base 3, a bracket 4 and a damper 7; the top end and the bottom end of the tower barrel 2 are respectively connected with the fan 1 and the base 3, the support 4 is arranged on the base 3, the damper 7 is arranged in water below the base 3, and the damper 7 is connected with the support 4; the damper 7 is connected with the bracket 4 through the suspension line 5; the dampers 7 are connected through damper connecting rods 6; the support 4 is also connected with an anchoring device 9 through an anchor chain cable 8, and the anchoring device 9 is fixed on the seabed.
The damper 7 is a solid counterweight object with the density of more than 4000kg/m and adopts a round shape, a square shape, a spindle shape or an irregular shape3Volume of 100 to 1000m3(ii) a At least one damper 7 is arranged, and if the number of the dampers is more than one, the two dampers 7 are connected by a damper connecting rod 6.
The support 4 and the base 3 adopt a cantilever beam type connecting structure, the support 4 adopts a rod structure or a truss structure, the base 3 adopts a cylindrical box structure, and one or more auxiliary stay bar connecting supports 4 and the base 3 are arranged.
Preferably, the support 4 and the base 3 are of an integral structure.
The connecting support 4 is connected with the damper 7 through a suspension line 5, the suspension line 5 is made of rigid materials, and two ends of the suspension line 5 are connected with the support 4 and the damper 7 through buckles.
The outer surfaces of the base 3, the support 4, the damper connecting rod 6 and the damper 7 are all provided with corrosion-resistant layers.
The number of the supports 4, the anchor chain cables 8 and the anchoring devices 9 is 3-6, the supports, the anchor chain cables 8 and the anchoring devices 9 are evenly arranged on the periphery of the base 3, and each anchor chain cable 8 is fixedly connected with 1 anchoring device 9.
The invention will be described in further detail with reference to the following drawings and specific examples, which are intended to illustrate and not to limit the invention:
example 1
As shown in fig. 1, the utility model discloses an offshore floating type wind turbine with underwater damping device, including wind turbine 1, tower section of thick bamboo 2, base 3, support 4, plumb line 5, attenuator connecting rod 6, attenuator 7, anchor chain cable 8, anchor 9. The tower drum 2 and the fan 1 as well as the tower drum 2 and the base 3 are fixedly connected through flange plates; 3 supports 4 are fixed with base 3 and link to each other, and base 3 adopts the box structure evenly distributed of cylindricality at box structure circumference. Each bracket is about 20 meters long and is kept stable by an inclined strut. The support 4 is connected to a damper 7 by means of a plumb line 5. The suspension line 4 is a metal rope structure. The suspension line 5 is connected with the bracket and the damper by buckles. 3 dampers 5 are all spherical solid structures and made of stainless steel; each damper is 5 meters in diameter and weighs approximately 500 tons. The total damper weight accounts for 1/4 of the floating fan. The three dampers are connected by damper connecting rods 6, the damper connecting rods 6 are metal rods, the metal rods are rigid non-telescopic structures, and the connecting rods and the dampers are connected by welding processes; the tail end of each support 4 is connected with an anchoring device 9 through an anchor chain cable 8, and the anchoring device 9 is fixed on the seabed and plays a role in fixing a fan unit; the surfaces of the base 3, the bracket 4, the suspension wire 5, the damper connecting rod 6 and the damper 7 are subjected to oxidation treatment, so that seawater corrosion is prevented.
Example 2
As shown in fig. 2, the utility model discloses an offshore floating type wind turbine with underwater damping device, including wind turbine 1, tower section of thick bamboo 2, base 3, support 4, plumb line 5, attenuator 7, anchor chain cable 8, anchor 9. Wherein the bracket 4 adopts Spar type supporting legs; fan 1, tower section of thick bamboo 2, base 3 loop through ring flange fixed connection between, are provided with 4 Spar formula landing legs under the base 3, play balanced fan stable effect. A suspension line 5 is led out from each Spar type supporting leg close to the tail end, and the tail end of the suspension line 5 is connected with a damper 7; the suspension line 5 is a metal rope structure. The suspension line 5 is connected with the bracket 4 and the damper 7 by buckles; the four suspension lines and the damper 7 are connected on the same horizontal plane, so that the damper 7 keeps balance, the damper 7 is of a spherical solid structure and is made of stainless steel, the diameter of the damper is 8 meters, and the weight of the damper is 2000 +/-50 tons; the total damper weight accounts for 1/4 of the floating fan. The end of each Spar-type leg is connected to an anchoring device 9 by a hawse 8. The anchoring device 9 is fixed on the seabed and plays a role in fixing the fan unit. The surfaces of the base 3, the Spar type supporting legs 4, the suspension lines 5 and the damper 6 are subjected to oxidation treatment, so that seawater corrosion is prevented.
Effect verification:
adopt the utility model discloses an after marine floating fan with damping device under water, when the fan received strong wind to act on, the inertia of attenuator can turn into slow damping motion with wind effort, effectively supports the effect of anti-wind to the fan, reduces the holistic amplitude of oscillation of fan, improves fan structure stability, has reduced mooring system's such as partly anchor chain cable, anchor simultaneously atress, has avoided mooring system's fatigue, improves life.
It should be noted that the above description is only one of the embodiments of the present invention, and all equivalent changes made by the system described in the present invention are included in the protection scope of the present invention. The technical field of the present invention can be replaced by other embodiments described in a similar manner, without departing from the structure of the present invention or exceeding the scope defined by the claims, which belong to the protection scope of the present invention.
Claims (9)
1. An offshore floating type wind turbine with an underwater damping device is characterized by comprising a wind turbine (1), a tower drum (2), a base (3), a support (4) and a damper (7);
the top end and the bottom end of the tower drum (2) are respectively connected with the fan (1) and the base (3), the support (4) is arranged on the base (3), the damper (7) is arranged in water below the base (3), and the damper (7) is connected with the support (4);
the damper (7) is connected with the bracket (4) through a suspension line (5); the dampers (7) are connected through damper connecting rods (6);
the support (4) is also connected with an anchoring device (9) through an anchor chain cable (8), and the anchoring device (9) is fixed on the seabed.
2. Offshore floating wind turbine with an underwater damping device according to claim 1, characterized in that the damper (7) is a solid weighted object with a density of more than 4000kg/m, with a round, square, spindle or irregular shape3Volume of 100 to 1000m3。
3. Offshore floating wind turbine with an underwater damping device according to claim 1, characterized in that the support (4) and the foundation (3) are of a cantilever beam type connection, the support (4) is of a rod or truss structure, the foundation (3) is of a cylindrical box structure, and one or more auxiliary stays are arranged to connect the support (4) and the foundation (3).
4. Offshore floating wind turbine with an underwater damping device according to claim 1, characterized in that the support (4) is integrated with the foundation (3).
5. Offshore floating wind turbine with an underwater damping device according to claim 1, characterized in that at least one damper (7) is provided, and if more than one damper (7) is provided, the two dampers are connected by a damper connecting rod (6).
6. Offshore floating wind turbine with an underwater damping device according to claim 5, characterized in that the outer surfaces of the foundation (3), the support (4), the damper connecting rod (6) and the damper (7) are provided with corrosion resistant layers.
7. Offshore floating wind turbine with an underwater damping device according to claim 1, characterized in that the support (4) is connected to the damper (7) by a plumb line (5), the plumb line (5) is made of a rigid material, and both ends of the plumb line (5) are connected to the support (4) and the damper (7) by buckles.
8. Offshore floating wind turbine with an underwater damping device according to claim 1, characterized in that the number of the brackets (4), the anchor chain cables (8) and the anchoring devices (9) is 3-6, the brackets, the anchor chain cables (8) and the anchoring devices (9) are evenly arranged around the base (3), and each anchor chain cable (8) is fixedly connected with 1 anchoring device (9).
9. Offshore floating wind turbine with an underwater damping device according to claim 1, characterized in that the wind turbine (1) is flanged to the tower (2) and the tower (2) is flanged to the base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020937404.4U CN212250337U (en) | 2020-05-28 | 2020-05-28 | Offshore floating type fan with underwater damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020937404.4U CN212250337U (en) | 2020-05-28 | 2020-05-28 | Offshore floating type fan with underwater damping device |
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| Publication Number | Publication Date |
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| CN212250337U true CN212250337U (en) | 2020-12-29 |
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| CN202020937404.4U Active CN212250337U (en) | 2020-05-28 | 2020-05-28 | Offshore floating type fan with underwater damping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202699A (en) * | 2021-06-01 | 2021-08-03 | 江苏科技大学 | Wind energy-wave energy power generation device based on floating platform and working method thereof |
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2020
- 2020-05-28 CN CN202020937404.4U patent/CN212250337U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202699A (en) * | 2021-06-01 | 2021-08-03 | 江苏科技大学 | Wind energy-wave energy power generation device based on floating platform and working method thereof |
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