CN213711234U - Offshore floating type wind generating set based on single-column foundation configured damper - Google Patents
Offshore floating type wind generating set based on single-column foundation configured damper Download PDFInfo
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- CN213711234U CN213711234U CN202022206522.0U CN202022206522U CN213711234U CN 213711234 U CN213711234 U CN 213711234U CN 202022206522 U CN202022206522 U CN 202022206522U CN 213711234 U CN213711234 U CN 213711234U
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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
- Y02E10/728—Onshore wind turbines
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Abstract
The utility model discloses a marine floating type wind generating set based on single-column foundation configuration attenuator, including the fan, single-column foundation, the cable, anchor and the hydraulic damper who has the check valve, the fan is adorned on single-column foundation, single-column foundation is adorned on hydraulic damper, single-column foundation and hydraulic damper pass through the anchor under water of cable connection, single-column foundation embeds has static ballast tank and the dynamic ballast tank of upper and lower distribution, the dynamic ballast tank is enclosed by the counter weight thing, buoyancy piston and single-column foundation shell, and it has the pressure spring to embed, buoyancy piston is connected with hydraulic damper's damping piston through the piston rod, the pressure spring, buoyancy piston and damping piston move up or move down together along with fan upward or downward motion, change hydraulic damper's internal volume, pour into or discharge the water through the check valve, the dynamic adjustment of the fan damping is realized, the structural stability of the fan is improved, and meanwhile, the stress of a part of cable and the anchoring device is reduced.
Description
Technical Field
The utility model belongs to the technical field of offshore wind power generation's technique and specifically relates to indicate a marine showy formula wind generating set based on single-column basis configuration attenuator.
Background
80% of European offshore wind resources are distributed in a water depth sea area of more than 60m which can not be applied almost on a fixed foundation, the developed capacity reaches 4000GW, the offshore wind resources live at the first position of the world, and besides deeper sea areas, floating offshore wind power technology can also be utilized in sea areas where partial seabed geological conditions are unfavorable for the fixed foundation. Therefore, the development of floating offshore wind power technology suitable for deeper sea areas is a necessary trend in the future.
At present, the floating offshore wind power foundation mainly has four types, which are respectively: barge type, semi-submersible type, mono-column type and tension leg type. The first three types can be classified into catenary foundations and the last type is a tension foundation according to the stress state of the anchor chain.
The mono-column foundation utilizes a counterweight (ballast) at the center bottom of a fixed buoyancy tank to achieve stability of the platform, and fixed anchor lines are used to prevent the cylindrical buoy from moving out of position, and the inherent stable design of the mono-column foundation has the characteristic of low risk. However, the mono-column foundation can only be installed in an area with a water depth of more than 80 meters and must be installed in several stages, the problems of difficulty in moving, inconvenience in operation and the like exist in the actual process, and the traditional wind generating set adopting the mono-column foundation has obvious vibration and large fatigue strength of a fan and a mooring system, so that certain hidden danger exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's shortcoming and not enough, provide a marine showy formula wind generating set based on column basis configuration attenuator, through the design that adopts column basis configuration attenuator, can improve fan structural stability, effectively reduce the fatigue strength of fan and mooring system.
In order to achieve the above object, the present invention provides a technical solution: the offshore floating type wind generating set based on the mono-column foundation configured with the damper comprises a fan, a mono-column foundation, a cable, an anchoring device and a hydraulic damper, wherein the fan is installed on the mono-column foundation, the mono-column foundation is connected with the underwater anchoring device through the cable, the hydraulic damper is connected with the underwater anchoring device through the cable, the mono-column foundation is installed on the hydraulic damper, a static ballast tank and a dynamic ballast tank which are distributed up and down are arranged in the mono-column foundation, the static ballast tank is used for providing main buoyancy for bearing the fan, and is matched with a counterweight for reducing the gravity center of the fan, the dynamic ballast tank is formed by surrounding the counterweight, a buoyancy piston and a mono-column foundation shell and is internally provided with a pressure spring, one end of the pressure spring is connected with the bottom of the counterweight, the other end of the pressure spring is connected with the top of the buoyancy piston, and the buoyancy piston is connected with a damping piston of the hydraulic damper downwards, the pressure spring, the buoyancy piston and the damping piston move up or down along with the upward or downward movement of the fan, so that the internal volume of the hydraulic damper is changed, a plurality of check valves are arranged on the hydraulic damper, and in the process of changing the internal volume of the hydraulic damper, external water can be injected into the interior of the hydraulic damper or the existing water in the interior of the hydraulic damper can be discharged through the check valves, so that the dynamic adjustment of the fan damping is realized, the structural stability of the fan is improved, and meanwhile, the stress of a part of cables and the anchoring device is also reduced.
Furthermore, the hydraulic damper is composed of a piston rod, a damping piston, a one-way valve and a cylinder body, one end of the piston rod is connected with the bottom of the buoyancy piston, the other end of the piston rod is connected with the top of the damping piston, the damping piston is located in an inner cavity of the cylinder body, the shape and the size of the damping piston are matched with those of the inner cavity, an upper limiting plate is arranged on the upper portion of the cylinder body and used for limiting the damping piston, and the one-way valve is distributed on the damping piston and at the bottom of the cylinder body.
Furthermore, the check valve consists of a valve body, a spring, a valve core, a filter plate and a flow limiting plate, wherein the spring and the valve core are arranged in the valve body and are mutually abutted, the filter plate is arranged at one port of the valve body, and the flow limiting plate is arranged at the other port of the valve body; the damping piston is provided with a one-way valve, a filter plate and a check valve, wherein the check valve is arranged on the damping piston, the flow limiting plate is arranged on the outer side of the cylinder body, the filter plate is arranged on the inner side of the cylinder body, the check valve is arranged at the bottom of the cylinder body, the filter plate is arranged on the outer side of the cylinder body, and the flow limiting plate.
Further, the outside of the cylinder body is provided with a cable guide hole for connecting a cable.
Furthermore, an air suction valve and a water discharge valve are arranged on the buoyancy piston.
Furthermore, the hydraulic damper is designed to be a cylinder, the buoyancy piston, the piston rod and the damping piston are designed to be concentric circles, and the bottom of the single-column foundation is in a circular truncated cone shape, the shape and the size of the circular truncated cone shape are matched with those of a cylinder body of the hydraulic damper.
Furthermore, the exterior of the single-column foundation is provided with a cable guide hole for connecting a cable.
Furthermore, the outer surfaces of the single-column foundation, the hydraulic damper, the cable and the anchoring device are all provided with corrosion-resistant layers.
Further, the fan is installed on a platform at the top of the single-column foundation.
Furthermore, the hydraulic damper is installed along the oblique direction through auxiliary equipment so as to restrain vertical vibration, horizontal movement and rotation of the fan.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
1. the fan is provided with the liquid damper under water, the liquid damper can realize dynamic adjustment of the fan damping, the structural stability of the fan is improved, and meanwhile, the stress of a part of cables and anchoring devices is reduced, so that the fatigue of a mooring system is reduced, and the service life is prolonged; in a word, the mode of configuring the damper on the single-column foundation is adopted, the structural stability of the fan is improved, meanwhile, the fatigue of the fan and a mooring system can be reduced, and therefore the economy of the whole machine is improved.
2. The mode that adopts the monopost basis configuration attenuator can reduce the weight and the height of monopost basis, reduces manufacturing material, practices thrift the complete machine cost.
3. The single-column type foundation, the hydraulic damper, the cable and the outer surface of the anchoring device are all provided with corrosion-resistant layers, so that the parts can be prevented from being damaged by seawater corrosion, the service life of the unit is prolonged, and the safety of the unit is improved.
4. The hydraulic damper can be installed along the oblique direction through auxiliary equipment, so that not only can the vertical vibration of the fan be inhibited, but also the horizontal movement and the rotation can be inhibited.
Drawings
Fig. 1 is a schematic structural diagram of an offshore floating wind turbine generator system configured with dampers based on a mono-pole foundation in embodiment 1.
FIG. 2 is a schematic diagram of the embodiment 1 in which the buoyancy piston, the piston rod and the damping piston are designed in concentric circles.
Fig. 3 is a schematic structural view of the check valve in embodiment 1.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
Example 1
Referring to fig. 1 to 3, the embodiment discloses an offshore floating wind turbine generator system based on a mono-column foundation configured with a damper, comprising a wind turbine 1, a mono-column foundation 2, a cable 3, an anchoring device 4 and a hydraulic damper 5, wherein the wind turbine 1 is installed on a platform 21 on the top of the mono-column foundation 2, the mono-column foundation 2 is installed on the hydraulic damper 5, a cable guide hole 22 for connecting the cable 3 is formed in the outer part of the mono-column foundation 2, a cable guide hole 55 for connecting the cable 3 is formed in the outer part of a cylinder 54 of the hydraulic damper 5, the cable 3 is designed by using a spring chain or a common chain, one end of the cable 3 is connected to the anchoring device 4 on the seabed, and the other end of the cable 3 is respectively connected to the cable guide hole 22 of the mono-column foundation 2 and the cable guide hole 55 of the hydraulic damper 5; the mono-column type foundation 2 is internally provided with a static ballast tank 23 and a dynamic ballast tank 24 which are distributed up and down, the static ballast tank 23 is used for providing main buoyancy for bearing the fan 1, the static ballast tank is matched with a counterweight 25 for lowering the gravity center of the fan 1, the dynamic ballast tank 24 is formed by surrounding the counterweight 25, a buoyancy piston 26 and a mono-column type foundation shell 27, and is internally provided with a pressure spring 28, one end of the pressure spring 28 is connected with the bottom of the counterweight 25, the other end of the pressure spring is connected with the top of the buoyancy piston 26, the buoyancy piston 26 is downwards connected with a damping piston 52 of the hydraulic damper 5 through a piston rod 51, the pressure spring 28, the buoyancy piston 26 and the damping piston 52 can move up or down along with the upward or downward movement of the fan 1, so as to further change the internal volume of the hydraulic damper 5, the hydraulic damper 5 is provided with a plurality of one-way valves 53, and in the process of changing the internal, can inject inside hydraulic damper 5 or discharge the existing water of hydraulic damper 5 inside with outside water through check valve 53 to the realization is to the damped dynamic adjustment of fan, makes when improving fan structural stability, also reduces the atress of partly cable 3 and anchor 4, and then reduces mooring system's fatigue, provides life.
In this embodiment, the hydraulic damper 5 is designed to be a cylinder, the bottom 29 of the mono-column foundation 2 is in a circular truncated cone shape (see fig. 1) with a shape and a size matched with the cylinder 54 of the hydraulic damper 5, the buoyancy piston 26, the piston rod 51 and the damping piston 52 are designed to be concentric circles (see fig. 2), the buoyancy piston 26 is symmetrically provided with an air suction valve 26a and a water discharge valve 26b, and the concentric circles of the damping piston 52 and the cylinder 54 are respectively provided with 8 check valves 53 at equal intervals, so that the total water inlet area is ensured, and the entry of aquatic organisms is reduced.
The hydraulic damper 5 is composed of a piston rod 51, a damping piston 52, a one-way valve 53 and a cylinder body 54, one end of the piston rod 51 is connected with the bottom of the buoyancy piston 52 through a bolt or a raised head and the like, the other end of the piston rod is connected with the top of the damping piston 52 through a bolt or a raised head and the like, the damping piston 52 is located in an inner cavity of the cylinder body 54, the shape and the size of the damping piston 52 are matched with the inner cavity, an upper limiting plate 56 is arranged at the upper part of the cylinder body 54 and used for limiting the damping piston 52, and 8 one-way valves 53 are arranged at the bottom of the cylinder.
Referring to fig. 3, the check valve 53 is composed of a valve body 53a, a spring 53b, a valve core 53c, a filter plate 53d and a restrictor plate 53e, the spring 53b and the valve core 53c are arranged in the valve body 53a and are mutually abutted, the filter plate 53d is arranged at one port of the valve body 53a to prevent large particle impurities and aquatic organisms from entering, and the restrictor plate 53e is arranged at the other port of the valve body 53a to change the flow rate and facilitate the replacement by replacing the restrictor plate 53 e; the check valve 53 attached to the damping piston 52 has a restrictor plate 53e outside the cylinder 54, a filter plate 53d inside the cylinder 54, the check valve 53 attached to the bottom of the cylinder 54 has a filter plate 53d outside the cylinder 54, and a restrictor plate 53e inside the cylinder 54.
When the fan 1 moves upwards, the pressure spring 28, the buoyancy piston 26 and the damping piston 52 are driven to move upwards, the internal volume of the hydraulic damper 5 is increased, the pressure is lower than that of an external water body, and the external water body rushes open the check valve 53 to enter the hydraulic damper 5 (namely, an inner cavity of the cylinder body) under the action of atmospheric pressure and water pressure; when the speed of the upward movement of the damping piston 52 decreases to zero, the check valve 53 closes the inlet opening. In the process, the hydraulic damper 5 mainly ensures that external water body fully enters and fills the hydraulic damper 5, and the compression spring 28 is further compressed when the piston rod 51 moves upwards except for initial compression, so that the mechanical energy of structural vibration is converted into liquid kinetic energy to enter the surrounding water body, and part of the mechanical energy is converted into elastic potential energy of the compression spring 28 and the cable 3.
When the fan 1 moves downwards, the compressed pressure spring 28, the buoyancy piston 26 and the damping piston 52 move downwards, the internal volume of the hydraulic damper 5 is reduced, the internal liquid is compressed, the pressure is increased, the check valve 53 on the damping piston 52 is opened, and the liquid flows out quickly; when the speed of the fan moving downwards is reduced to zero, the check valve 53 closes the water inlet hole. In the process, the hydraulic damper 5 mainly ensures that the existing external water body flows out, and the elastic potential energy of the pressure spring 28 and the cable 3 is changed.
Example 2
Different from embodiment 1, in this embodiment, by adding auxiliary devices (not shown) such as pulleys, the hydraulic damper can be installed obliquely, so that the design can suppress not only vertical vibration of the fan, but also horizontal movement and rotation.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all the changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The offshore floating type wind generating set comprises a fan, a single-column foundation, a cable and an anchoring device, wherein the fan is arranged on the single-column foundation, and the single-column foundation is connected with the underwater anchoring device through the cable; the method is characterized in that: still include hydraulic damper, hydraulic damper passes through the underwater anchor of cable connection, the mono-column basis is installed on hydraulic damper, the mono-column basis embeds there are static ballast tank and the dynamic ballast tank that distributes from top to bottom, static ballast tank is used for providing the main buoyancy that bears the weight of fan, and it is supporting to be equipped with the counterweight that is used for reducing the fan focus, the dynamic ballast tank is enclosed by counterweight, buoyancy piston and mono-column basis shell to there is the pressure spring to embed, the one end of pressure spring is connected with the bottom of counterweight, and its other end is connected with the top of buoyancy piston, the buoyancy piston passes through the piston rod and is connected with hydraulic damper's damping piston downwards, pressure spring, buoyancy piston and damping piston move up or move down along with the upwards or the downstream of fan together, and then change hydraulic damper's internal volume, the hydraulic damper is provided with the check valves, and in the process of changing the internal volume of the hydraulic damper, external water can be injected into the hydraulic damper or the existing water in the hydraulic damper can be discharged through the check valves, so that the dynamic adjustment of the fan damping is realized, the structural stability of the fan is improved, and the stress of a part of cables and the stress of the anchoring device are reduced.
2. The floating wind generating set on sea based on the mono-column foundation configured damper of claim 1, wherein: the hydraulic damper is composed of a piston rod, a damping piston, a one-way valve and a cylinder body, one end of the piston rod is connected with the bottom of the buoyancy piston, the other end of the piston rod is connected with the top of the damping piston, the damping piston is located in an inner cavity of the cylinder body, the shape and the size of the damping piston are matched with those of the inner cavity, an upper limiting plate is arranged on the upper portion of the cylinder body and used for limiting the damping piston, and the one-way valve is distributed on the damping piston and at the bottom of the cylinder body.
3. The floating wind generating set on sea based on the mono-column foundation configured damper of claim 2, wherein: the check valve consists of a valve body, a spring, a valve core, a filter plate and a current-limiting plate, wherein the spring and the valve core are arranged in the valve body and are mutually abutted, the filter plate is arranged at one port of the valve body, and the current-limiting plate is arranged at the other port of the valve body; the damping piston is provided with a one-way valve, a filter plate and a check valve, wherein the check valve is arranged on the damping piston, the flow limiting plate is arranged on the outer side of the cylinder body, the filter plate is arranged on the inner side of the cylinder body, the check valve is arranged at the bottom of the cylinder body, the filter plate is arranged on the outer side of the cylinder body, and the flow limiting plate.
4. The floating wind generating set on sea based on the mono-column foundation configured damper of claim 2, wherein: and a cable guide hole for connecting a cable is formed in the outer part of the cylinder body.
5. The floating wind generating set on sea based on the mono-column foundation configured damper of claim 1, wherein: and the buoyancy piston is provided with an air suction valve and a water discharge valve.
6. The floating wind generating set on sea based on the mono-column foundation configured damper of claim 1, wherein: the hydraulic damper is designed to be a cylinder, the buoyancy piston, the piston rod and the damping piston are designed to be concentric circles, and the bottom of the single-column foundation is in a circular truncated cone shape, wherein the shape and the size of the circular truncated cone shape are matched with those of a cylinder body of the hydraulic damper.
7. The floating wind generating set on sea based on the mono-column foundation configured damper of claim 1, wherein: and the single-column foundation is externally provided with a cable guide hole for connecting a cable.
8. The floating wind generating set on sea based on the mono-column foundation configured damper of claim 1, wherein: and the outer surfaces of the single-column foundation, the hydraulic damper, the cable and the anchoring device are all provided with corrosion-resistant layers.
9. The floating wind generating set on sea based on the mono-column foundation configured damper of claim 1, wherein: the fan is installed on the platform at the top of the single-column foundation.
10. The floating wind generating set on sea based on the mono-column foundation configured damper of claim 1, wherein: the hydraulic damper is installed along the oblique direction through auxiliary equipment so as to restrain vertical vibration, horizontal movement and rotation of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022206522.0U CN213711234U (en) | 2020-09-30 | 2020-09-30 | Offshore floating type wind generating set based on single-column foundation configured damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022206522.0U CN213711234U (en) | 2020-09-30 | 2020-09-30 | Offshore floating type wind generating set based on single-column foundation configured damper |
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| Publication Number | Publication Date |
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| CN213711234U true CN213711234U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022206522.0U Active CN213711234U (en) | 2020-09-30 | 2020-09-30 | Offshore floating type wind generating set based on single-column foundation configured damper |
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| CN (1) | CN213711234U (en) |
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2020
- 2020-09-30 CN CN202022206522.0U patent/CN213711234U/en active Active
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