An overall installation method for floating type floating photovoltaic

Abstract

The present invention discloses a method for the integral installation of a floating type water surface photovoltaic system, which is completed by means of an auxiliary water surface installation tool; the auxiliary water surface installation tool includes a gantry for connecting two self-propelled barges and hoisting photovoltaic modules and a bracket with a self-floating function; the installation steps include: S1, connecting the two self-propelled barges by using the gantry, placing the photovoltaic modules on the bracket and transporting them to the lower part of the gantry; S2, hoisting the photovoltaic modules by the self-propelled barges to the construction position; S3, transporting the photovoltaic modules above the water surface pile foundation structure; S4, inserting and fixing the photovoltaic modules with the pile foundation structure; S5, lowering the bracket and floating on the water surface and separating from the gantry, and towing the bracket away from the pile foundation by a windproof rope; this method realizes the docking and fixing of the lifting module of the modular water surface photovoltaic structure with the water surface pile foundation structure by using the auxiliary water surface installation tool, without occupying a large number of ships and human resources, and the whole construction process is efficient, convenient, and has low operation cost.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic technology on water surfaces, lakes, offshore and open seas, and in particular to a floating type water photovoltaic integrated installation method. Background Art

[0002] At present, photovoltaic power generation equipment needs to be assembled from a large number of scattered components. For photovoltaic panels alone, the power of a single photovoltaic panel commonly used at this stage is 550Wp, and to complete a 100MWp offshore photovoltaic power station, it is necessary to assemble about 180,000 photovoltaic panels, which means that the photovoltaic power generation equipment itself is a huge workload.

[0003] In recent years, the construction of photovoltaic power generation facilities on water has been carried out on a large scale. Due to the particularity of water operations, each working surface of photovoltaic power generation facilities on water requires the cooperation of ships, which makes it impossible to carry out construction on a large scale. If a large number of cumbersome assembly operations are also completed on water, it is definitely not a feasible solution. Therefore, in order to reduce the number of operating ships and improve construction efficiency, it is necessary to design a modular water photovoltaic structure and a corresponding convenient installation method to achieve a construction method that combines onshore assembly with water surface hoisting, which not only saves the time of ship operations, but also saves labor costs and facility construction costs. Summary of the invention

[0004] The purpose of the present invention is to provide a floating photovoltaic integrated installation method that can achieve low-cost, efficient and convenient construction.

[0005] To this end, the technical solution of the present invention is as follows:

[0006] A floating photovoltaic integrated installation method is completed by an auxiliary installation tool on water; the auxiliary installation tool on water includes a door frame and a plurality of brackets; wherein,

[0007] The gantry is composed of a plurality of inverted U-shaped truss beams and two sliding beams; the plurality of inverted U-shaped truss beams are fixed on the hull deck in a straddling manner from the bow to the stern; the two sliding beams are arranged in parallel and at intervals, and are respectively fixed on both sides of the top surfaces of the plurality of inverted U-shaped truss beams; two lifting ropes are respectively arranged on the two sliding beams located between each two adjacent inverted U-shaped truss beams, a lifting device lifting point is arranged on the top of each lifting rope, and a lifting hook is arranged at the bottom of each lifting rope;

[0008] A number of brackets are arranged in a line under the gantry and are respectively and correspondingly arranged between every two adjacent inverted U-shaped truss beams; the bracket includes a truss beam group, a self-floating component and an anti-collision pad group; the length of the self-floating component is greater than the transverse length of the photovoltaic module, and its width is less than the distance between adjacent plugs at the bottom of the photovoltaic module; the truss beam group is composed of two truss beams with lengths greater than the length of the self-floating component, and the two are symmetrically fixed on the two long side edges of the self-floating component, and a lifting point is arranged on the top surface at each end of each truss beam; the anti-collision pad group is composed of two anti-collision pads, and the two are symmetrically arranged and respectively fixed on the outer side wall surfaces of the truss beams opposite to the self-floating component.

[0009] Further, the inner width of the gantry is greater than the length of the photovoltaic module, and the inner height of the gantry satisfies that when the photovoltaic module is hoisted on the gantry by a rope, the bottom of the photovoltaic module is located above the underwater pile foundation.

[0010] Further, the self-floating component is composed of a number of pontoons, foam blocks or air bags arranged in a rectangular array and connected to each other.

[0011] Further, the anti-collision air cushion is an air cushion made of a flexible material or an elastic material, such as a rubber pad.

[0012] Further, the bracket further includes a roller group, which is composed of a number of rollers and is arranged at intervals on the bottom surfaces of the two truss beams, so that the bracket can be easily towed and moved on the shore through the roller group.

[0013] The U-shaped truss beam that can move freely on the hull deck, and the truss beam in the bracket is a reinforced concrete truss beam, a steel truss beam, or a truss beam formed by the combination of concrete and steel.

[0014] A floating-type water-based photovoltaic integral installation method realized by using the above water-based auxiliary installation tool, and the installation steps are specifically as follows:

[0015] S1. Moor two self-propelled barges on both sides of the jetty in a straddling manner, and erect and fix the gantry on the decks of the two self-propelled barges in a straddling manner; hoist a number of assembled photovoltaic modules onto each bracket and let them fall on the cross beam group of the bracket; use traction equipment to arrange the brackets at intervals in a line on the jetty, and the four lifting points on each bracket are respectively hung on the hooks of the four suspension ropes located above it; cable guys are pre-tied on each bracket.

[0016] Among them, the self-propelled barge has the function of pile insertion and station keeping or DP2 positioning to realize lifting the barge out of the water through the lifting system; the inner edge width of the two self-propelled barges should be greater than the length of the bracket with self-floating function.

[0017] S2. Connect the hoisting devices adjacent to each bracket on the self-propelled barge to the hoisting points of the hoisting devices on the four adjacent suspension ropes with ropes, so as to lift the bracket carrying the photovoltaic module and make its bottom higher than the top of the underwater pile foundation;

[0018] S3. The self-propelled barge drives the gantry to float several sets of photovoltaic modules above the top surface of the pile foundation to be positioned, and roughly adjust the horizontal position relationship between the overall photovoltaic module and the pile foundation;

[0019] S4. The self-propelled barge is stationed. By adjusting the relative position of the suspension rope on the sliding beam, the horizontal position of the photovoltaic module is accurately adjusted. The suspension rope is lowered through the hoisting device, so that the plug at the bottom of the photovoltaic module just inserts into the hollow socket at the top of the pile foundation. After adjusting the verticality of the photovoltaic module, the plug at the bottom of the photovoltaic module is permanently fixed to the pile foundation;

[0020] S5. The hoisting device continues to lower the suspension rope, so that the bracket falls into the water and floats on the water surface. At this time, the suspension rope gradually relaxes, and the hook at its bottom naturally disengages from the hoisting point on the bracket;

[0021] S6. Use the pre-tied guy ropes to tow the bracket with self-floating function out of the piles, and then hoist it onto the self-propelled barge and return.

[0022] Further, in step S1, the length of the suspension rope is greater than the distance from the top of the gantry to the water surface, so that the bracket can be lowered to fall on the water surface. The suspension rope is a steel wire rope or a sling.

[0023] Further, in step S4, the permanent fixing connection method is grouting connection, welding, or bolt connection.

[0024] Compared with the prior art, the floating type integral installation method of the floating photovoltaic is designed based on the modular floating photovoltaic structure. By using the water-assisted installation tool, it can realize the docking and fixing of the lifting module of the modular floating photovoltaic structure and the underwater pile foundation structure, without occupying a large number of ships and human resources, greatly reducing the workload of the underwater installation, and the whole construction process is efficient, convenient, and the operation cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a top view of transporting several sets of overhead photovoltaic modules to the construction site through a self-propelled barge in the floating type integral installation method of the floating photovoltaic of the present invention;

[0026] Figure 2 It is a side view of placing the bracket in the overhead layer below the photovoltaic module in the floating type integral installation method of the floating photovoltaic of the present invention;

[0027] Figure 3The top view shows that when hoisting and lifting in the integral installation method of the floating-type floating photovoltaic system of the present invention, the photovoltaic module is lifted by contacting the bottom of the photovoltaic module with the bracket.

[0028] Figure 4 The side view shows the process that the bottom plug of the photovoltaic module is hoisted into place at the top hollow socket of the pile foundation in the integral installation method of the floating-type floating photovoltaic system of the present invention. Detailed implementation manners

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. However, the following embodiments are by no means any limitation to the present invention.

[0030] The integral installation tool and method for the floating-type floating photovoltaic system are designed for the modular floating photovoltaic structure. Among them, the modular floating photovoltaic structure includes a pile foundation structure 2, a socket structure, a photovoltaic panel support structure, and a photovoltaic module 6 arranged in sequence from bottom to top; the pile foundation structure 2 is composed of several pile foundations, which are fixed in the water body according to a preset pile spacing; the socket structure, the photovoltaic panel support structure, and the photovoltaic panel are connected in sequence to form an integral photovoltaic module 6. As an integral lifting module, after being assembled on land, it is transported to the water operation surface by a barge. After being inserted and fixedly connected with the pile foundation structure 2, the installation of the modular floating photovoltaic structure is completed. In order to realize the connection between the photovoltaic module 6 and the pile foundation structure 2, the socket structure includes several cylindrical plugs arranged at the bottom of the photovoltaic module 6, and several plate plugs respectively fixed on the inner walls of the tops of the pile foundations constituting the pile foundation structure 2, so that a hollow socket is formed at the top of each pile foundation.

[0031] Refer to Figure 2 and Figure 4 , a water-assisted installation tool suitable for the integral installation of the floating-type floating photovoltaic system, which includes a gantry 4 and two brackets 7; among them,

[0032] The gantry 4 is composed of three inverted U-shaped truss beams and two sliding beams 51; the three inverted U-shaped truss beams are spaced and fixed on the hull deck in a straddling manner from the bow to the stern; among them, the inner width of the gantry 4 is greater than the length of the photovoltaic module 6, and the inner height of the gantry 4 satisfies that when the photovoltaic module 6 is hoisted on the gantry 4 by a rope, the bottom of the photovoltaic module 6 is above the pile foundation in the water;

[0033] The two sliding beams 51 are arranged in parallel and at intervals, and are respectively fixed on both sides of the top surfaces of the three inverted U-shaped truss beams; two suspension ropes are arranged on each of the two sliding beams 51 between every two adjacent inverted U-shaped truss beams. A lifting device hanging point 5 is arranged at the top of each suspension rope, and a hook is arranged at the bottom of each suspension rope; the suspension rope can slide relative to the sliding beam, so that by adjusting the positions of the hanging points in two horizontal directions, the plugs at the bottom of the hoisted photovoltaic module 6 can be made to correspond to and be centered with the pile foundations below one by one.

[0034] Two brackets 7 are arranged side by side under the gantry 4 and are respectively arranged one by one between every two adjacent inverted U-shaped truss beams; the bracket 7 includes a truss beam group, a self-floating component, an anti-collision pad group and a roller group; among them,

[0035] The self-floating component is specifically a buoy component, which is composed of a number of buoys arranged in a rectangular array and connected to each other; the length of the buoy component is greater than the lateral length of the photovoltaic module 6, and its width is less than the distance between adjacent plugs at the bottom of the photovoltaic module 6;

[0036] The truss beam group is composed of two truss beams with a length greater than the length of the self-floating component. The two are symmetrically fixed on the two long sides of the self-floating component, and a lifting point is arranged on the top surface of each end of each truss beam; the truss beam is specifically a steel truss beam;

[0037] The anti-collision pad group is composed of two anti-collision pads, which are symmetrically arranged and respectively fixed on the outer side wall surfaces of the truss beams opposite to the self-floating component; the anti-collision air cushion is specifically a rubber pad;

[0038] The roller group is composed of a number of rollers, which are arranged at intervals on the bottom surfaces of the two truss beams, so that the bracket 7 can be easily towed and moved on the shore through the roller group; each roller is also provided with a locking mechanism so that it can be fixed at the corresponding position after being transported in place;

[0039] See Figures 1 to 4 , the floating transportation type integrated installation method of the floating photovoltaic implemented by using the above-mentioned water-assisted installation tool, the installation steps are specifically as follows:

[0040] S1. Moor two self-propelled barges 3 with the function of inserting piles and positioning in a straddling manner on both sides of the jetty. The gantry 4 is erected and fixed on the decks of the two self-propelled barges 3 in a straddling manner; among them, the stiffness of the gantry 4 should be large enough to connect the two self-propelled barges 3 into a whole and drive synchronously, and cooperate with each other during construction operations; hoist two sets of assembled photovoltaic modules 6 onto the two brackets 7 respectively and place them on the cross beam group of the bracket 7; use the traction equipment to pull the two brackets to the jetty. The four lifting points on each bracket 7 are respectively hung on the hooks of the four lifting ropes located above it; the length of the lifting rope is greater than the distance from the top of the gantry 4 to the water surface 1, so that the bracket 7 can be lowered to land on the water surface 1; in addition, guy ropes are pre-tied on each bracket 7;

[0041] S2. Connect the lifting devices on the self-propelled barge 3 adjacent to each bracket 7 with the lifting device hanging points 5 on the four adjacent lifting ropes through ropes, so as to lift the bracket 7 carrying the photovoltaic module 6 and make its bottom higher than the top of the underwater pile foundation;

[0042] S3. The self-propelled barge 3 drives the gantry to float and transport the two sets of photovoltaic modules 6 above the top surface of the pile foundation to be positioned, and roughly adjusts the horizontal position relationship between the overall photovoltaic module 6 and the pile foundation;

[0043] S4. The self-propelled barge 3 respectively uses two fixed piles 8 arranged at the bow and the stern to stop the ship in place by means of pile insertion. Specifically, the pile foot of the pile foundation can be equipped with a pile shoe, and the lifting mode of the pile foundation includes but is not limited to a rack and pinion lifting system, a spinning lifting system or a hydraulic lifting system; then, by adjusting the relative position of the lifting rope on the sliding beam 51, the horizontal position of the photovoltaic module 6 is accurately adjusted. The lifting rope is lowered by the lifting device so that the plug at the bottom of the photovoltaic module 6 just inserts into the hollow socket at the top of the pile foundation. After adjusting the verticality of the photovoltaic module 6, the plug at the bottom of the photovoltaic module 6 is permanently fixed to the pile foundation; among them, the permanent fixing connection method is grouting connection, welding or bolt connection; taking the grouting connection method as an example, after the plug at the bottom of the photovoltaic module 6 is inserted into the hollow socket at the top of each pile foundation of the pile foundation structure 2 and the verticality adjustment is completed, cement slurry is poured into the chamber to form a grouting layer between the plug and the inner wall of the cavity. After the cement slurry is cured, a reliable connection is formed between each plug and the pile foundation;

[0044] S5. The lifting device continues to lower the lifting rope so that the bracket 7 falls into the water and floats on the water surface 1. At this time, the lifting rope gradually relaxes, and the hook at its bottom naturally disengages from the lifting point on the bracket 7;

[0045] S6. Use the pre-tied guy ropes to tow the bracket with self-floating function out between the piles, and then hoist it onto the self-propelled barge 3 and return.

[0046] In summary, this floating type of floating photovoltaic overall installation method can greatly reduce the workload of water installation. It only needs to rely on a self-propelled barge to complete the overall installation of floating photovoltaic, and there is no need to carry out low-efficiency operations such as photovoltaic panel assembly, line connection, and structural component assembly on the sea surface, which occupy a large number of ships and human resources.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for integral installation of floating photovoltaic power generation system, characterized in that, it is completed by an auxiliary installation tool on water; the auxiliary installation tool on water includes a gantry (4) and a number of brackets (7); among them, the gantry (4) is composed of a number of inverted U-shaped truss beams and two sliding beams (51); a number of inverted U-shaped truss beams are fixed on the hull deck at intervals in a straddling manner from the bow to the stern; the two sliding beams (51) are arranged in parallel and at intervals, and are respectively fixed on both sides of the top surfaces of a number of inverted U-shaped truss beams; two suspension ropes are arranged on each of the two sliding beams (51) between every two adjacent inverted U-shaped truss beams, and a lifting device suspension point (5) is arranged at the top of each suspension rope, and a hook is arranged at the bottom of each suspension rope; a number of brackets (7) are arranged in a line under the gantry (4), and are respectively arranged between every two adjacent inverted U-shaped truss beams in one-to-one correspondence; the bracket (7) includes a truss beam group, a self-floating component and an anti-collision pad group; the length of the self-floating component is greater than the transverse length of the photovoltaic module, and its width is less than the distance between adjacent plugs at the bottom of the photovoltaic module; the truss beam group is composed of two truss beams with a length greater than the length of the self-floating component, and the two are symmetrically fixed on the two long sides of the self-floating component, and a suspension point is arranged on the top surface of each end of each truss beam; the anti-collision pad group is composed of two anti-collision pads, and the two are symmetrically arranged and are respectively fixed on the outer side wall surfaces of the truss beams opposite to the self-floating component; the installation steps are as follows: S1. Moor two self-propelled barges on both sides of the jetty in a straddling manner, and erect and fix the gantry (4) on the decks of the two self-propelled barges in a straddling manner; hoist a number of assembled photovoltaic modules onto each bracket (7) and let them fall on the cross beam group of the bracket (7); use traction equipment to arrange the brackets (7) at intervals in a line on the jetty, and the four suspension points on each bracket (7) are respectively hung on the hooks of the four suspension ropes above it; guy ropes are pre-tied on each bracket (7); S2. Connect the lifting devices on the self-propelled barges adjacent to each bracket (7) with the lifting device suspension points (5) on the four adjacent suspension ropes through ropes to lift the bracket (7) carrying the photovoltaic module and make its bottom higher than the top end of the underwater pile foundation; S3. The self-propelled barge drives the gantry to float a number of photovoltaic modules above the top surface of the pile foundation to be positioned, and roughly adjust the horizontal position relationship between the overall photovoltaic module and the pile foundation; S4. The self-propelled barge is stationed, and the horizontal position of the photovoltaic module is precisely adjusted by adjusting the relative position of the suspension rope on the sliding beam (51). Lower the suspension rope through the lifting device so that the plug at the bottom of the photovoltaic module just inserts into the hollow socket at the top of the pile foundation. After adjusting the verticality of the photovoltaic module, permanently fix the plug at the bottom of the photovoltaic module to the pile foundation; S5. The lifting device continues to lower the suspension rope to make the bracket (7) fall into the water and float on the water surface. At this time, the suspension rope gradually relaxes, and the hook at its bottom naturally disengages from the suspension point on the bracket (7); S6. Use the pre-tied guy ropes to tow the bracket with self-floating function out of the piles, and then hoist it onto the self-propelled barge and return.

2. The floating type water surface photovoltaic integral installation method according to claim 1, characterized in that, the inner width of the gantry (4) is greater than the length of the photovoltaic module, and the inner height of the gantry (4) satisfies that when the photovoltaic module is hoisted on the gantry (4) by a rope, the bottom of the photovoltaic module is located above the underwater pile foundation.

3. The floating type water surface photovoltaic integral installation method according to claim 1, characterized in that, the self-floating component is composed of a plurality of pontoons, foam blocks or air bags arranged in a rectangular array and connected to each other.

4. The floating type water surface photovoltaic integral installation method according to claim 1, characterized in that, the anti-collision air cushion adopts a rubber pad.

5. The floating type water surface photovoltaic integral installation method according to claim 1, characterized in that, the bracket (7) further includes a roller group, the roller group is composed of a plurality of rollers, and they are arranged at intervals on the bottom surfaces of two truss beams, so that the bracket (7) can be easily towed and moved on the shore through the roller group.

6. The floating type water surface photovoltaic integral installation method according to claim 1, characterized in that, the U-shaped truss beam and the truss beam in the bracket (7) adopt a reinforced concrete truss beam, a steel truss beam, or a truss beam formed by combining concrete and steel.

7. The floating type water surface photovoltaic integral installation method according to any one of claims 1 to 6, characterized in that, in step S1, the length of the lifting rope is greater than the distance from the top of the gantry (4) to the water surface, so that the bracket (7) can be lowered to fall on the water surface.

8. The floating type water surface photovoltaic integral installation method according to any one of claims 1 to 6, characterized in that, the lifting rope is a steel wire rope or a sling.

9. The floating type water surface photovoltaic integral installation method according to any one of claims 1 to 6, characterized in that, in step S4, the permanent fixed connection method is grouting connection, welding, or bolt connection.

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