CN110949631A - Overhanging type self-adaptive anchoring system - Google Patents
Overhanging type self-adaptive anchoring system Download PDFInfo
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- CN110949631A CN110949631A CN201911045428.7A CN201911045428A CN110949631A CN 110949631 A CN110949631 A CN 110949631A CN 201911045428 A CN201911045428 A CN 201911045428A CN 110949631 A CN110949631 A CN 110949631A
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- anchoring
- water surface
- floating body
- fixed pulley
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4453—Floating structures carrying electric power plants for converting solar energy into electric energy
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Ocean & Marine Engineering (AREA)
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- Civil Engineering (AREA)
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Abstract
The invention discloses a suspension type self-adaptive anchoring system. The water surface array floating body is connected with a plurality of upper anchoring devices, each upper anchoring device comprises a fixed pulley and a suspension movable anchor block, the underwater anchoring devices are fixedly connected with one end of a traction rope, and the other end of the traction rope bypasses the fixed pulley and is connected with the suspension movable anchor block. Because the upper anchoring point and the lower anchoring point are adopted, the lower anchoring point is fixed, the upper anchoring point is dynamic, and the upper anchoring point and the lower anchoring point are arranged outside the projection area of the water surface array floating body, more stable anchoring embodiment is formed, and the safety of the water surface array floating body is ensured.
Description
Technical Field
The invention belongs to the anchoring technology of a water surface floating body, and particularly relates to an anchoring technology of a water surface floating photovoltaic power generation array.
Background
Photovoltaic power plant on water utilizes the base station on water to float photovoltaic module on the surface of water and generates electricity. The method is characterized in that land resources are not occupied, the water body has a cooling effect on the photovoltaic module, and the temperature rise of the surface of the module can be inhibited, so that higher generating capacity is obtained. In addition, the solar cell panel is covered on the water surface, so that the evaporation capacity of the water surface can be reduced, the propagation of algae is inhibited, and water resources are protected. Because the photovoltaic floating on the water surface has the characteristics, the photovoltaic floating on the water surface is widely applied in recent years. However, due to the variation of water level fluctuation in the water area, the conventional anchoring manner of the floating photovoltaic array is not suitable for the water area with the variation of water level fluctuation. An anchoring system is thus created that can adapt to variations in water level fluctuations.
An anchor device for an above-water photovoltaic power station is disclosed in CN201820606148, which comprises an above-water pulley, an underwater pulley, a flexible connection and a tightening device. The flexible connection connects the floating square matrix and the underwater anchor point into a whole through the water pulley and the underwater pulley; the tightening device comprises a tightening device handle, a tightening device support and a tightening device rotating drum, wherein the tightening device handle is fixed on the tightening device rotating drum, and the tightening device rotating drum is fixed on the tightening device support and can rotate. The flexible connection is wound on the tightening device rotary drum, and the flexible connection is tightened by rotating the tightening device rotary drum. Rotation of the take-up device drum 244 is controlled by a motor. The anchoring system can realize the adjustment and lifting of the floating photovoltaic square matrix along with the fluctuation of the position; however, because the flexible connection is adjusted to be folded and unfolded in an electric or manual mode, the folding and unfolding can not be implemented timely according to the water level change, and the photovoltaic square matrix can not follow the water level fluctuation, so that the risk that the photovoltaic square matrix is immersed is caused. Meanwhile, due to the fact that the underwater pulley is arranged, the underwater pulley is wound and blocked by waterweeds and silt, the underwater pulley is invalid, and the adjustment of the anchoring body system is disabled.
Also for example CN 109263817 a discloses a floating photovoltaic power plant system for large water head in hydroelectric engineering. The lateral self-adaptive movable anchoring mechanism comprises steel strands and self-adaptive sliding anchor components comprising slide rails, wherein the slide rails are arranged on the side slopes on two sides of the reservoir area in pairs along the direction of the side slopes, one ends of the steel strands are respectively connected with the most outside one of the buoyancy tank bases which are connected into a whole, and the other ends of the steel strands are respectively connected with the self-adaptive sliding anchor components on the slide rails on two sides of the reservoir area; in the water surface lifting process, all the buoyancy tank bases connected into a whole are lifted along the sliding rail with the water surface under the coordination of the self-adaptive sliding anchor component through the steel stranded wires; the self-adaptive sliding anchor assembly further comprises a sliding device and a take-up and pay-off driving device, the other end of the steel strand bypasses the sliding device and is connected with the take-up and pay-off driving device on the corresponding side, and the sliding device can reciprocate along the sliding rail under the matching of the take-up and pay-off driving device and the buoyancy tank bases which are connected into a whole. The system can only be suitable for scenes with side slopes on two sides of a water area, and meanwhile, the self-adaptive anchoring system is complex in structure, high in construction and installation difficulty and high in engineering cost.
Disclosure of Invention
The invention aims to provide a suspension type self-adaptive anchoring system which is suitable for a photovoltaic array in a wide water area to automatically adapt to the fluctuation of water level and is safe and stable.
In order to realize the purpose of the invention, the technical scheme of the invention is as follows: the water surface array floating body is connected with a plurality of upper anchoring devices, each upper anchoring device comprises a fixed pulley and a suspension movable anchor block, the underwater anchoring devices are fixedly connected with one end of a traction rope, and the other end of the traction rope bypasses the fixed pulley and is connected with the suspension movable anchor block.
According to the technical scheme, the fixed pulley is connected with the suspension movable anchor block through the traction rope, when the water level rises and falls, the weight of the suspension movable anchor block, the weight of the water surface array floating body and the buoyancy of water are utilized, when the water level rises, the water surface array floating body rises, the traction rope between the fixed pulley and the fixed underwater anchoring device is lengthened, the suspension movable anchor block is lifted, and the dynamic balance of the anchoring system is realized; when the water level is lowered, the water surface array floating bodies are lowered under the action of the weight of the suspended movable anchor blocks, and the traction ropes between the fixed pulleys and the fixed underwater anchoring devices are pulled to be shortened, so that the dynamic balance of the anchoring system is realized.
The method is further characterized in that: the fixed pulleys are arranged on the periphery of the water surface array floating body, the underwater anchoring device is fixed underwater outside the projection area of the water surface array floating body, and the suspension movable anchoring blocks are suspended in the water on the periphery of the water surface array floating body.
The suspension movable anchor blocks are suspended in the water at the peripheral edges of the water surface array floating bodies, so that the lower fixed anchor points and the upper movable anchor points are arranged outside the projection area of the water surface array floating bodies, more stable anchoring embodiment is formed, and the safety of the water surface array floating bodies is ensured.
The method is further characterized in that: the suspension movable anchor blocks are uniformly arranged in the water suspended at the peripheral edge of the water surface array floating body.
The method is further characterized in that: the edge of the water surface array floating body is connected with a fixed pulley floating body, a fixed pulley bracket is connected to the fixed pulley floating body, and the fixed pulley bracket is connected with a fixed pulley.
The method is further characterized in that: the fixed pulley floating bodies comprise two floating bodies at intervals, a floating body connecting plate is connected between the two floating bodies, and the fixed pulley supports are arranged on the floating body connecting plate and/or the two floating bodies.
The fixed pulleys are arranged on the independent floating bodies to form stable support for the fixed pulleys, and meanwhile, the two floating bodies at intervals are adopted to facilitate the traction ropes to pass through.
Has the advantages that:
1) widening construction conditions of water surface floating type photovoltaic power station
The anchoring system can still keep the floating limiting function when the water level changes greatly by automatically adjusting the length of the anchoring rope (the traction rope), the allowable water level change range of the floating power station construction is greatly increased, and conditions are created for the reservoir construction photovoltaic power station.
2) Optimize the photovoltaic arrangement scheme of the water surface, increase the utilization ratio of the water surface
When the system is applied to the fixed-length anchoring square matrix, the photovoltaic square matrix interval which needs to be avoided in consideration of collision can be properly reduced, the water surface occupied area of the floating photovoltaic power station is saved, and the water surface utilization rate is increased.
3) Improve the built floating power station in the market and optimize operation and maintenance
The self-adaptive anchoring system is applied to a low-variation water level power station, the workload of operation and maintenance personnel can be reduced, the length of a steel cable does not need to be adjusted manually when the water level varies, and the power station can reduce certain operation and maintenance cost by applying the technical improvement scheme.
4) The anchoring system is high in safety
Because the upper anchoring point and the lower anchoring point are adopted, the lower anchoring point is fixed, the upper anchoring point is dynamic, and the upper anchoring point and the lower anchoring point are arranged outside the projection area of the water surface array floating body, more stable anchoring embodiment is formed, and the safety of the water surface array floating body is ensured.
Drawings
Fig. 1 is a schematic front view of a suspended adaptive anchoring system.
Fig. 2 is a schematic top view of an anchoring point on the overhanging adaptive anchoring system.
Fig. 3 is an enlarged schematic view of fig. 1A.
Fig. 4 is an enlarged schematic view of fig. 1B.
Fig. 5 is a schematic view of the anchoring point pulley structure.
FIG. 6 is a schematic view II of the pulley structure of the anchor point.
Fig. 7 is a schematic diagram of a suspended adaptive anchoring system.
Detailed Description
The present embodiment is used for explaining technical features of the claims so that those skilled in the art can understand the technical solutions of the present invention. The scope of the present invention is not limited to the structures shown in the following embodiments, and those skilled in the art will be able to make modifications other than the structures shown in the following embodiments based on the claims and the following embodiments, and such modifications as include the technical features of the claims and the scope of the present invention.
As shown in fig. 1 and 2, a photovoltaic cell array 101 is arranged on the water surface array floating body 100. The edge of the water surface array floating body 100 is provided with an upper anchoring device 200 (upper anchoring point), and a lower anchoring device (lower anchoring point) 201 is arranged under water. The lower anchoring device is fixed at the water bottom to realize a lower fixed point. The lower anchoring device can be in the form of, but is not limited to, a lower anchoring block, a lower anchoring pile, and the like. The upper anchoring device 200 includes a fixed pulley 210 and a suspended movable anchor 240, one end of the pulling line 220 is fixed to the lower anchoring device (lower anchor), and the other end of the pulling line 220 is connected to the suspended movable anchor 240 by passing around the fixed pulley 210. The suspended movable anchor blocks 240 are suspended in the water at the peripheral edge of the water surface array floating body. The fixed pulleys are arranged on the periphery of the water surface array floating body, and the underwater anchoring device is fixed underwater outside the projection area of the water surface array floating body. The suspension movable anchor blocks are uniformly arranged in the water suspended at the peripheral edge of the water surface array floating body. The water surface array floating body 100 is rectangular in the embodiment, and the suspension movable anchor blocks are arranged at four corners of the water surface array floating body 100.
As shown in figure 3, the rigid connecting piece 202 is hinged with the upper anchoring device 200 and the water surface array floating body 100 at two ends respectively, for example, a steel ring 203 is used for hinging.
As shown in fig. 4, 5 and 6, the upper anchoring device 200 further includes a fixed pulley floating body, the fixed pulley floating body is connected with a fixed pulley bracket, and the fixed pulley bracket is connected with a fixed pulley.
The fixed pulley floating body comprises two floating bodies 211 at intervals, two floating body connecting plates 212 are connected between the two floating bodies and can be connected by welding, and the fixed pulley support 213 is arranged on the floating body connecting plates 212. The pulling rope 220 passes through the gap 214 between the two floating bodies and passes around the fixed pulley.
The further characteristic of the technical scheme of the invention also provides a technical scheme for avoiding the floating failure of the suspension movable anchor block of the upper anchoring device.
As shown in fig. 7, the operation of the regulating system is schematically illustrated, and the regulating state of the system is divided into the following three stages.
1 fixed anchoring phase
At the moment, because the water level is too low, the movable anchor block sinks to the bottom, the system is converted into a fixed anchoring system, and the anchoring effect at this stage is a double-point elliptic anchoring mode; in order to ensure that the maximum displacement of the fixed anchoring stage does not exceed the full-stage control displacement S (defined below), a limit needs to be made to the adaptable minimum water level hmin:
wherein H is the highest water level of the water area, and S is the set full-stage control displacement S. S is horizontal displacement (m) which is not allowed to exceed the floating body of the water surface array under the action of maximum load (wind load).
2 active anchoring phase
When the water level is higher than the bottom sinking water level of the movable anchor block and is lower than the anchoring rope length depletion stage, the movable anchor block is in a floating posture in water at the stage, and the movable end of the anchoring rope is adaptively changed along with the water level change and the external load action.
3 stage of fixing rope length
At this stage, the maximum load has exhausted the length adjustment of the movable end, along with the increase of the water level, the load value required for reaching the limit rope length is reduced, the limit value of the horizontal displacement is reduced, and the horizontal displacement of the system is 0m when the water level reaches the rope length L.
Therefore, the present invention can only operate normally after hmin is satisfied.
Claims (5)
1. A suspension type self-adaptive anchoring system comprises a water surface array floating body and a plurality of fixed underwater anchoring devices, and is characterized in that the water surface array floating body is connected with a plurality of upper anchoring devices, each upper anchoring device comprises a fixed pulley and a suspension movable anchor block, each underwater anchoring device is fixedly connected with one end of a traction rope, and the other end of each traction rope bypasses the fixed pulley and is connected with the suspension movable anchor block.
2. The suspended self-adaptive anchoring system as claimed in claim 1, wherein the fixed pulleys are arranged at the peripheral edges of the water surface array floats, the underwater anchoring devices are fixed underwater outside the projection area of the water surface array floats, and the suspended movable anchor blocks are suspended in the water at the peripheral edges of the water surface array floats.
3. The suspended self-adaptive anchoring system according to claim 1 or 2, wherein the suspended movable anchor blocks are uniformly arranged in the water suspended at the peripheral edge of the array floating body on the water surface.
4. The suspended self-adaptive anchoring system according to claim 1 or 2, wherein the edge of the water surface array floating body is connected with a fixed pulley floating body, a fixed pulley bracket is connected on the fixed pulley floating body, and the fixed pulley bracket is connected with a fixed pulley.
5. The suspended adaptive anchoring system of claim 4, wherein the fixed pulley floats comprise two spaced floats, a float connection plate is connected between the two floats, and the fixed pulley supports are provided on the float connection plate and/or on the two floats.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111614704.4A CN114084282A (en) | 2019-10-30 | 2019-10-30 | Suspended self-adaptive anchoring system and method |
| CN201911045428.7A CN110949631A (en) | 2019-10-30 | 2019-10-30 | Overhanging type self-adaptive anchoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045428.7A CN110949631A (en) | 2019-10-30 | 2019-10-30 | Overhanging type self-adaptive anchoring system |
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| CN202111614704.4A Division CN114084282A (en) | 2019-10-30 | 2019-10-30 | Suspended self-adaptive anchoring system and method |
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| CN110949631A true CN110949631A (en) | 2020-04-03 |
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| CN201911045428.7A Pending CN110949631A (en) | 2019-10-30 | 2019-10-30 | Overhanging type self-adaptive anchoring system |
| CN202111614704.4A Pending CN114084282A (en) | 2019-10-30 | 2019-10-30 | Suspended self-adaptive anchoring system and method |
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| CN202111614704.4A Pending CN114084282A (en) | 2019-10-30 | 2019-10-30 | Suspended self-adaptive anchoring system and method |
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Cited By (3)
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| CN112606952A (en) * | 2020-12-29 | 2021-04-06 | 南通大学 | Mooring positioning device for wharf boat or structure |
| CN113120161A (en) * | 2021-04-28 | 2021-07-16 | 中国三峡新能源(集团)股份有限公司 | Anchoring system of floating photovoltaic power generation platform and construction method thereof |
| GB2617686A (en) * | 2022-02-26 | 2023-10-18 | Jin Wang Dr | Mooring systems and methods for floating offshore wind turbines |
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| CN114084282A (en) | 2022-02-25 |
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