CN216762096U - Water surface photovoltaic array structure for water level large amplitude reservoir - Google Patents

Abstract

The utility model provides a water surface photovoltaic array structure for a water level large amplitude reservoir, which comprises a floating photovoltaic array, wherein the laying area of the floating photovoltaic array is equal to the water area of the reservoir dead water level of a pumped storage power station reservoir; the photovoltaic panel fixed pile foundation is installed in a water area where a water level amplitude variation zone of a pumped storage power station reservoir is located, a photovoltaic support structure is fixed to the top of the photovoltaic panel fixed pile foundation, and a fixed photovoltaic panel array is arranged at the top of the photovoltaic support structure. Not only does not occupy precious land resources, but also can maximize and effectively utilize water surface resources, increase the installed photovoltaic capacity, increase the generated energy and have remarkable ecological, economic and social benefits.

Description

Water surface photovoltaic array structure for water level large amplitude reservoir

Technical Field

The utility model belongs to the field of new energy, and particularly relates to a water surface photovoltaic array structure for a water level large-amplitude reservoir.

Background

Photovoltaic power generation is a technology for directly converting light energy into electric energy by utilizing the photovoltaic effect of a semiconductor interface. After the traditional onshore photovoltaic power station is developed rapidly, along with the atrophy of land resources and the limitation of ecological environment protection, the onshore photovoltaic development is more limited, and then the novel photovoltaic power station of the water surface photovoltaic power station appears. The surface of water photovoltaic has the characteristics of land resource saving, high power generation efficiency, low construction difficulty, low cost and the like.

The conventional water surface photovoltaic method mainly adopts a floating method and a fixed method. The water area with stable water level is selected to the floating type photovoltaic, the photovoltaic floating cylinders are arranged on the water surface to be connected in parallel and in series to form a floating island, and the photovoltaic plate is assumed to generate electricity on the floating island. Fixed photovoltaic only is applicable to the shallow waters of depth of water, and it is huge because of the construction degree of difficulty under water, adopts short steel-pipe pile form to insert the underground at the surface of water construction steel-pipe pile usually and fixes, erects the photovoltaic board on the pile after the steel-pipe pile is accomplished and generates electricity. Receive water level and depth of water restriction, the region that the water level change is big, the water level falls the back photovoltaic board and will sit on the bank slope, destroys the chinampa structure, and photovoltaic board can't be safe, steady operation, often can only arrange photovoltaic array in waters central zone, and the area of extravagant waters can not accomplish the biggest effective utilization of resource. When the depth of water is great, if all adopt fixed photovoltaic, the pile foundation degree of depth is great, and the construction degree of difficulty increases under water, the cost increases, pile foundation density is big, not only destroys the environment under water and still can show the increase investment.

The pumped storage power station reservoir and the hydropower station reservoir are typical reservoirs with large water level amplitude, and the two reservoirs respectively have 3 characteristic water levels, namely a dead water level (the corresponding water level of the dead reservoir capacity of the power station reservoir is the lowest water level of the power station reservoir), a flood prevention and flood prevention water level (the water level of a flood peak which is met in the flood season of the power station and has a power generation function, and is higher than the dead water level) and a normal water storage level (the normal power generation operation water level of the power station reservoir). During power generation, the water level rapidly drops, and during water storage, the water level rapidly rises, and the amplitude of variation can reach 30-40 m. The two reservoirs are usually narrow in terrain, if traditional surface photovoltaics are arranged, the available water area is very limited, the installation scale is small, the construction difficulty is high, the cost is extremely high, and resources are wasted and the economical efficiency is poor. Therefore, if photovoltaic power generation is to be arranged on the water surface of this type of reservoir, both conventional floating and fixed methods are not well adapted.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a water surface photovoltaic array structure for a water level large-amplitude reservoir, which is particularly suitable for pumped storage power station reservoirs and hydropower station reservoirs, effectively solves the problem that the water level large-amplitude reservoir cannot be used in the whole area, adopts a large-amplitude photovoltaic arrangement structure in a water level amplitude-variable zone, adopts a floating arrangement mode in a non-water level amplitude-variable zone, ensures that a photovoltaic panel is not submerged under the normal water storage condition, can be completely and normally operated by power generation when the water level is reduced, is not influenced by the water level amplitude, and ensures that the photovoltaic panel can safely and stably generate power; the floating photovoltaic arrangement is adopted in a water area corresponding to the dead water level of the reservoir, namely a non-amplitude zone, the floating photovoltaic floating island moves up and down along with the change of the water level, and the floating photovoltaic panel can completely, safely and stably generate power and operate when the water level amplitude changes. Not only does not occupy precious land resources, but also can maximize and effectively utilize water surface resources, increase the installed photovoltaic capacity, increase the generated energy and have remarkable ecological, economic and social benefits.

In order to achieve the technical features, the utility model is realized as follows: a water surface photovoltaic array structure for a water level large-amplitude reservoir comprises a floating photovoltaic array, wherein the laying area of the floating photovoltaic array is equal to the water area of the reservoir dead water level of a pumped storage power station reservoir;

the method comprises the following steps that a photovoltaic panel fixed pile foundation is installed in a water area where a water level amplitude-changing zone of a reservoir of the pumped storage power station is located, a photovoltaic support structure is fixed to the top of the photovoltaic panel fixed pile foundation, and a fixed photovoltaic panel array is arranged on the top of the photovoltaic support structure;

the fixed photovoltaic panel array is distributed in the upper area of the whole water level amplitude variation belt;

the height of the fixed photovoltaic panel array is equal to the height of the highest water level.

The photovoltaic supporting structure comprises truss stand columns fixed on a photovoltaic panel fixed pile foundation, a top truss platform is fixed at the tops of the truss stand columns, and a fixed photovoltaic panel array is installed at the tops of the top truss platform.

The fixed photovoltaic panel array comprises photovoltaic columns, and photovoltaic panels are fixed to the tops of the photovoltaic columns.

The floating photovoltaic array comprises floating bodies, the adjacent floating bodies are hinged through floating body ear seats, and the top of each floating body supports and mounts a photovoltaic panel through a photovoltaic support.

The floating photovoltaic array is connected with a dynamic limit mooring device used for lateral anti-swing limit of the floating photovoltaic array.

The dynamic limit mooring device comprises a counterweight type mooring device arranged on the side of the dam;

the device also comprises a lifting mooring device arranged on the side where the non-dam is located.

The lifting type mooring device comprises a mooring foundation, a T-shaped stand column is fixed to the top of the mooring foundation, a lifting wheel set is arranged on the T-shaped stand column in a sliding fit mode, and the other end of the lifting wheel set is connected with a movable connecting buckle on the outer side wall of the floating type photovoltaic array through a first traction rope and a force release ring.

The counter weight formula mooring device includes the balancing weight, the balancing weight passes through sliding fit and installs on the slide rail, the slide rail passes through the slide rail anchor block to be fixed on the low reaches dam slope of dam, and the balancing weight links to each other with the second traction cable, and the other end of second traction cable passes the reservation piping lane that sets up inside the dam, and the second traction cable passes through the release ring and links to each other with the swing joint knot on the showy formula photovoltaic array lateral wall.

The inside processing of balancing weight has the spout that is used for with slide rail matched with, and the processing has staggered arrangement's slider engaging lug in the upper and lower both sides of balancing weight, through the connecting pin cartridge cooperation between the adjacent slider engaging lug to the quantity of required balancing weight is connected according to required traction force selectivity.

Pulley blocks for guiding the second traction cable are symmetrically fixed on the two sides of the reserved pipe gallery and located on the upstream dam slope and the downstream dam slope of the dam.

The utility model has the following beneficial effects:

1. the utility model provides a device for arranging a water surface photovoltaic power station in the whole water area of a water level large amplitude reservoir, which adopts a technical measure of combining fixation and floating to realize that the photovoltaic power generation area is not influenced by the reduction of the water area caused by the change of the water level, thereby not only solving the problem of the photovoltaic arrangement method of the water level amplitude-variable zone, fully utilizing the solar energy resource of the water level amplitude-variable zone to obtain power generation, but also ensuring that the photovoltaic power generation area is not reduced in the water level amplitude-variable process.

2. Compared with the traditional arrangement mode, the photovoltaic panel has the advantages that the area of the photovoltaic panel is obviously increased, more power generation capacity is obtained, and better economic benefit is obtained.

3. The utility model effectively utilizes resources to the maximum extent, does not occupy the land, develops intensively and saves the resources.

4. According to the utility model, the pile foundation structure is creatively used in the water level amplitude-changing zone, so that a good space condition is created for erecting the photovoltaic panel, and meanwhile, the pile foundation is embedded underground, so that great help is provided for stabilizing the reservoir bank slope and preventing water and soil loss.

5. The utility model realizes maximum shielding on the area of a water area, reduces the evaporation capacity of the water surface to a limited extent and improves the long-term utilization rate of water resources in the power generation process of the hydropower station.

6. The utility model can adapt to the problem that pile foundation arrangement cannot be carried out on the side of the dam by adopting the counterweight type mooring device, and ensures that the integral dynamic lifting mooring of the floating type photovoltaic array can be realized on the side where the dam is located.

Drawings

The utility model is further illustrated by the following figures and examples.

Fig. 1 is a top view of the overall structure of the present invention.

Fig. 2 is a front sectional view of the present invention at a dead water level.

Fig. 3 is a front sectional view of the utility model in a normal water storage position.

Fig. 4 is an overall structural view of the fixed photovoltaic panel array when the square photovoltaic panel is used for fixing the pile foundation according to the utility model.

Fig. 5 is an overall structural view of the fixed photovoltaic panel array when the circular photovoltaic panel is used for fixing the pile foundation according to the present invention.

Fig. 6 is an overall structural view of the floating photovoltaic array of the present invention.

Fig. 7 is a view of the elevating mooring apparatus of the present invention in the direction of a-a in fig. 1.

Fig. 8 is a side view of the elevating mooring apparatus of the present invention.

Fig. 9 is a top view of the elevating mooring apparatus of the present invention.

Fig. 10 is a view of the dynamic limit mooring of the present invention in the direction B-B of fig. 1.

FIG. 11 is a side view of a weight of the present invention.

FIG. 12 is a front view of the weight of the present invention.

FIG. 13 is a diagram of the connection of multiple clump weights of the present invention.

In the figure: the system comprises a pumped storage power station reservoir 1, a dam 2, a water level amplitude variation belt 3, a floating type photovoltaic array 4, a photovoltaic plate fixed pile foundation 5, a photovoltaic support structure 6, a fixed type photovoltaic plate array 7, a reservoir dead water level 8, a highest water level 9, a mooring foundation 10, a T-shaped upright post 11, a lifting wheel set 12, a force release ring 13, a first traction cable 14, a movable connecting buckle 15, a slide rail anchor block 16, a slide rail 17, a balancing weight 18, a second traction cable 19, a pulley block 20, a reserved pipe gallery 21, a slide block connecting lug 22 and a connecting pin 23;

a floating body 401, a floating body ear seat 402 and a photovoltaic bracket 403;

truss column 601, top truss platform 602;

photovoltaic column 701, photovoltaic panel 702.

Detailed Description

Embodiments of the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-13, a water surface photovoltaic array structure for a reservoir with a large water level amplitude comprises a floating photovoltaic array 4, wherein the laying area of the floating photovoltaic array 4 is equal to the water area of a reservoir dead water level 8 of a pumped storage power station reservoir 1; the photovoltaic panel fixed pile foundation 5 is installed in the water area where the water level amplitude variation zone 3 of the pumped storage power station reservoir 1 is located, a photovoltaic support structure 6 is fixed to the top of the photovoltaic panel fixed pile foundation 5, and a fixed photovoltaic panel array 7 is arranged at the top of the photovoltaic support structure 6. By adopting the specific structure, the large amplitude-variable photovoltaic arrangement structure is adopted in the water level amplitude-variable band, and the floating arrangement mode is adopted in the non-water level amplitude-variable band, so that the photovoltaic panel is not submerged under the normal water storage condition, the photovoltaic panel can be completely and normally operated for power generation when the water level descends, the influence of the water level amplitude is avoided, and the safe and stable power generation of the photovoltaic panel is ensured; the floating photovoltaic arrangement is adopted in a water area corresponding to the dead water level of the reservoir, namely a non-amplitude zone, the floating photovoltaic floating island moves up and down along with the change of the water level, and the floating photovoltaic panel can completely, safely and stably generate power and operate when the water level amplitude changes.

Further, the fixed photovoltaic panel array 7 is distributed over the whole area above the water level amplitude-changing belt 3; the height of the fixed photovoltaic panel array 7 is equal to the height of the highest water level 9. Through adopting the fixed photovoltaic board array 7 of above-mentioned structure, the waters in which water level amplitude-varying zone 3 is located is covered that can be fine, and then has guaranteed the transform that can adapt to the water level, has improved the utilization ratio.

And only need become 3 regional corresponding fixed pile foundations 5 of photovoltaic board that sets up in the amplitude of fluctuation of water level area and can realize the pile foundation construction before retaining, guaranteed the pile foundation construction under the anhydrous environment, reduced the construction degree of difficulty.

In addition, through adopting the fixed pile foundation 5 embedding underground of photovoltaic board, it has great help to reservoir bank slope stability and prevent soil erosion and water loss.

The cross section of the photovoltaic panel fixed pile foundation 5 is of a square, circular or regular polygon structure.

Further, photovoltaic supporting structure 6 includes truss stand 601 fixed on the fixed pile foundation 5 of photovoltaic board, truss stand 601's top is fixed with top truss platform 602, fixed photovoltaic board array 7 of top truss platform 602's top installation. The photovoltaic mounting structure 6 described above can be used for the effective fixing and mounting of the fixed photovoltaic panel array 7.

Further, the fixed photovoltaic panel array 7 comprises a photovoltaic column 701, and a photovoltaic panel 702 is fixed on the top of the photovoltaic column 701. Through foretell fixed photovoltaic board array 7 can be abundant utilize the regional soil resource that water level becomes width of cloth area 3 and belongs to, and then realize illumination maximize.

Further, floating photovoltaic array 4 includes body 401, and it is articulated continuous through body ear seat 402 between the adjacent body 401, the top of body 401 supports installation photovoltaic board through photovoltaic support 403. The floating photovoltaic array 4 can float horizontally, is suitable for the region of the dead water level, ensures that the floating photovoltaic array can not be influenced by the change of the water level, and can generate electricity safely and reliably.

Further, the floating photovoltaic array 4 is connected with a dynamic limit mooring device for performing lateral anti-swing limit on the floating photovoltaic array. Through foretell spacing mooring arrangement of developments, guaranteed to float formula photovoltaic array 4 and in the water level variation process, do the displacement of lift direction all the time, and can not take place the sidesway, prevent that it from entering into the bottom of fixed photovoltaic board array 7 and causing the damage or shelter from, and influence generating efficiency.

Further, the dynamic limit mooring device comprises a counterweight type mooring device arranged on the side of the dam 2. Therefore, the counterweight mooring device cannot be used for arranging the lifting mooring device mainly because pile foundation construction cannot be carried out on the dam 2 side. When the water level changes, the weight type mooring device can enable the floating photovoltaic array 4 to descend along with the reduction of the water level; when the water level rises, the counterweight mooring device can make the floating photovoltaic array 4 rise along with the rise of the water level; in the ascending and descending process, the force change of the mooring rope is small, the floating body is stably pulled, and the floating island photovoltaic module can safely and stably operate.

Further, the device also comprises a lifting mooring device arranged on the side of the non-dam 2. Through foretell over-and-under type mooring equipment has guaranteed also can pull stretch-draw all the time with floating formula photovoltaic array 4 when the water level changes, and then effectively prevent its problem that takes place the sidesway.

Further, over-and-under type mooring equipment includes mooring foundation 10, and mooring foundation 10's top is fixed with T type stand 11, and sliding fit has lift wheelset 12 on T type stand 11, and lift wheelset 12's the other end links to each other with swing joint buckle 15 on the showy formula photovoltaic array 4 lateral wall through first haulage cable 14 and release ring 13. Through foretell over-and-under type mooring equipment, in the concrete course of work, when the water level change, will drive the automatic lift of floating photovoltaic array 4 to make it can follow the water level transform and self-adaptation lift adjustment.

Further, counter weight formula mooring arrangement includes balancing weight 18, balancing weight 18 is installed on slide rail 17 through sliding fit, slide rail 17 passes through slide rail anchor block 16 to be fixed on dam 2's low reaches dam slope, and balancing weight 18 links to each other with second traction cable 19, and the other end of second traction cable 19 passes the reservation piping lane 21 that sets up inside dam 2, and second traction cable 19 links to each other through the swing joint knot 15 on discharge ring 13 and the 4 lateral walls of floating photovoltaic array. In the specific use process, when the water level rises, the floating photovoltaic array 4 pulls the second traction rope 19, the counterweight block 18 is driven by the second traction rope 19 to rise along the slide rail 17, in the rising process of the second traction rope, the floating photovoltaic array 4 is always pulled, when the water level falls, the counterweight block 18 falls along the slide rail 17, the second traction rope 19 is tensioned, and the floating photovoltaic array 4 is tensioned.

Furthermore, the inside processing of balancing weight 18 has the spout that is used for cooperating with slide rail 17, and the upper and lower both sides processing of balancing weight 18 has staggered arrangement's slider engaging lug 22, and through connecting pin 23 cartridge cooperation between the adjacent slider engaging lug 22 to the quantity of required balancing weight 18 is connected according to required traction force selectivity. Through foretell connection structure, guaranteed that the tensile force can be adjusted, and then guaranteed the reliable tensioning to floating formula photovoltaic array 4.

Furthermore, pulley blocks 20 for guiding the second traction cable 19 are symmetrically fixed on the upstream dam slope and the downstream dam slope of the dam 2 on two sides of the reserved pipe gallery 21. The pulley arrangement 20 described above can be used to tension the second traction cable 19 reliably.

Example 2:

the utility model adopts a mode of combining fixation and floating, adopts a fixed arrangement mode at a water level amplitude-variable band, and adopts a floating arrangement mode at a non-water level amplitude-variable band. According to the construction characteristics of pumped storage power stations and hydropower stations, when land construction conditions are met before water is stored in the construction process of a power station dam, a photovoltaic power station concrete pile foundation is constructed on a bank slope in a variable amplitude zone, the top surface of the pile foundation exceeds the normal water storage water level line of a reservoir, so that a photovoltaic plate is not submerged under the normal water storage conditions, the photovoltaic plate can be operated normally when the water level is lowered, the influence of the amplitude of the water level is avoided, and the photovoltaic plate is ensured to generate electricity safely and stably; the floating photovoltaic arrangement is adopted in the water area corresponding to the dead water level of the reservoir, the floating photovoltaic floating island moves up and down along with the change of the water level, and the floating photovoltaic panel can completely, safely and stably generate power and operate when the water level changes in amplitude.

A photovoltaic power generation capacity estimation method for a water surface photovoltaic arrangement method of a water level large-amplitude reservoir is disclosed, and the formula is as follows:

according to the measurement, the water area A of the normal water storage level and the water area A of the dead water level of the reservoir can be known₁Unit m of²；

Variable width belt fixed type photovoltaic mountable water area A₂=A-A₁；

Floating type photovoltaic installation is according to 4MW standard chinampa 33964m respectively²6MW standard floating island 50229m²Meter and floating type photovoltaic installed capacity S_{4MW Standard}=A₁×4/33964m²Unit MW, floating photovoltaic installed capacity S_{6MW Standard}=A₁×6/50229m²The unit MW, is,

amplitude-variable belt fixed photovoltaic installation is 10MW/133200m²Standard meter, variable amplitude belt fixed photovoltaic installed capacity S_{Fixing device}=A₂×10/133200m²Unit MW;

reservoir surface of water photovoltaic power generation total capacity S = S_{Fixing device}+S_{4MW Standard}Or S_{6MW Standard}。

Claims (10)

1. The utility model provides a surface of water photovoltaic array structure for water level greatly becomes width of cloth reservoir which characterized in that: the photovoltaic power station reservoir comprises a floating photovoltaic array (4), wherein the laying area of the floating photovoltaic array (4) is equal to the water area of a reservoir dead water level (8) of a pumped storage power station reservoir (1);

a photovoltaic panel fixed pile foundation (5) is installed in a water area where a water level amplitude varying zone (3) of a pumped storage power station reservoir (1) is located, a photovoltaic support structure (6) is fixed to the top of the photovoltaic panel fixed pile foundation (5), and a fixed photovoltaic panel array (7) is arranged on the top of the photovoltaic support structure (6);

the fixed photovoltaic panel array (7) is distributed over the area above the whole water level amplitude-varying belt (3).

2. The water surface photovoltaic array structure for the water level large amplitude reservoir as claimed in claim 1, wherein: photovoltaic supporting structure (6) are including fixing truss stand (601) on photovoltaic board fixed pile foundation (5), the top of truss stand (601) is fixed with top truss platform (602), the fixed photovoltaic board array (7) of top installation of top truss platform (602).

3. The water surface photovoltaic array structure for the water level large amplitude reservoir as claimed in claim 1 or 2, wherein: the fixed photovoltaic panel array (7) comprises photovoltaic columns (701), and photovoltaic panels (702) are fixed on the tops of the photovoltaic columns (701); the height of the fixed photovoltaic panel array (7) is equal to the height of the highest water level (9).

4. The water surface photovoltaic array structure for the water level large amplitude reservoir as claimed in claim 1, wherein: the floating photovoltaic array (4) comprises floating bodies (401), the adjacent floating bodies (401) are hinged and connected through floating body ear seats (402), and photovoltaic panels are supported and installed on the tops of the floating bodies (401) through photovoltaic supports (403).

5. The water surface photovoltaic array structure for the water level large amplitude reservoir as claimed in claim 1, wherein: the floating photovoltaic array (4) is connected with a dynamic limit mooring device used for lateral anti-swing limit of the floating photovoltaic array.

6. The water surface photovoltaic array structure for the water level large amplitude reservoir as claimed in claim 5, wherein: the dynamic limit mooring device comprises a counterweight type mooring device arranged on the side of the dam (2);

the device also comprises a lifting mooring device arranged on the side of the non-dam (2).

7. The water surface photovoltaic array structure for the water level large amplitude reservoir as claimed in claim 6, wherein: the lifting type mooring device comprises a mooring foundation (10), a T-shaped upright post (11) is fixed at the top of the mooring foundation (10), a lifting wheel set (12) is arranged on the T-shaped upright post (11) in a sliding fit mode, and the other end of the lifting wheel set (12) is connected with a movable connecting buckle (15) on the outer side wall of the floating type photovoltaic array (4) through a first traction rope (14) and a force release ring (13).

8. The water surface photovoltaic array structure for the water level large amplitude reservoir as claimed in claim 6, wherein: the counter weight formula mooring arrangement includes balancing weight (18), balancing weight (18) are installed on slide rail (17) through sliding fit, slide rail (17) are fixed on the low reaches dam slope of dam (2) through slide rail anchor block (16), balancing weight (18) link to each other with second traction cable (19), and the other end of second traction cable (19) passes and sets up reservation piping lane (21) inside dam (2), and second traction cable (19) link to each other through swing joint knot (15) on discharge ring (13) and the showy formula photovoltaic array (4) lateral wall.

9. The water surface photovoltaic array structure for the water level large amplitude reservoir as claimed in claim 8, wherein: the sliding grooves used for being matched with the sliding rails (17) are processed in the balancing weight (18), sliding block connecting lugs (22) which are arranged in a staggered mode are processed on the upper side and the lower side of the balancing weight (18), adjacent sliding block connecting lugs (22) are matched through connecting pins (23) in an inserted mode, and the number of the balancing weights (18) required is selectively connected according to required traction force.

10. The water surface photovoltaic array structure for the water level large amplitude reservoir as claimed in claim 8, wherein: pulley blocks (20) used for guiding a second traction cable (19) are symmetrically fixed on the upstream dam slope and the downstream dam slope of the dam (2) on two sides of the reserved pipe gallery (21).

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