Rotary contraction type offshore photovoltaic support stacking tool and lightering operation method thereof

Abstract

The invention discloses a rotary contraction type offshore photovoltaic support stacking and splicing tool and a lightering operation method thereof. The stacking and splicing tool comprises a profile steel foundation, a steel pipe column set and multiple photovoltaic supporting systems sequentially arranged on the steel pipe column set at intervals from bottom to top. A plurality of steel pipe columns of the steel pipe column group are vertically arranged and are uniformly distributed and fixed on the profile steel foundation along the circumferential direction; each photovoltaic supporting system comprises a plurality of horizontally-arranged supporting legs which are arranged in the circumferential direction of the steel pipe column set. The bottom of each supporting leg is provided with a supporting leg support or a supporting leg inclined strut, and the top surface of the outer side end of each supporting leg is provided with a supporting leg tray which can be matched with a bolt ball at the bottom of the offshore photovoltaic bracket in an embedded manner; the supporting legs of the photovoltaic supporting system on the bottom layer are fixed to the steel pipe columns in a radial mode, and the supporting legs of the other photovoltaic supporting systems and supporting leg inclined struts below the supporting legs are rotationally arranged on the steel pipe columns in a sleeving mode through sleeves. According to the stacking tool and the lightering operation method thereof, multiple layers of photovoltaic supports can be transported at a time, the construction efficiency is high, and the cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the offshore photovoltaic construction technical field, and particularly relates to a rotary retractable offshore photovoltaic support stacking tool and a barge operation method thereof. BACKGROUND

[0002] At present, the offshore photovoltaic industry chain in China develops rapidly and has initially taken shape, which is an important clean energy source in the future. Offshore photovoltaic refers to a photovoltaic power station installed on the sea surface, which usually has two structures of floating type or pile foundation type. Among them, the pile foundation type offshore photovoltaic is to fix the photovoltaic support in the sea through pile foundation. The characteristics of photovoltaic power generation of this structure include: 1) the sea surface is open and less obstructed, and the power generation efficiency is high; 2) no land resources are needed, and it is suitable for use in areas where land resources are scarce; 3) combined with fishery, aquaculture and other industries, comprehensive utilization of multiple purposes is realized.

[0003] At present, the offshore photovoltaic support is composed of chord, upper chord, diagonal brace and other members to form a truss or net structure on the sea, and then the photovoltaic panel is installed on the support to complete the construction. Due to the few construction windows on the sea and the great difficulty of operation, at present, the support is mostly assembled on land, transported to the construction site by barge, and installed on site by a crane ship. However, due to the large number of support members, the large overall size and weight, the stacking is difficult, and a single barge is mostly used to transport a single support. Therefore, when the transport distance is far, the cost of ship and machine is extremely high, which causes great waste of resources. Based on this, it is necessary to design a tool structure that can improve the transportation efficiency of the barge to optimize the utilization of resources and reduce the barge transportation cost. SUMMARY

[0004] The purpose of the present application is to provide a rotary retractable offshore photovoltaic support stacking tool to solve the above technical problems.

[0005] Another purpose of the present application is to provide a barge operation method using the above rotary retractable offshore photovoltaic support stacking tool.

[0006] Therefore, the technical scheme of the present application is as follows:

[0007] The application discloses a rotary contraction type offshore photovoltaic support frame stacking tool, which comprises a profile steel foundation, a steel pipe column group, and a first photovoltaic support system, a second photovoltaic support system, and an Nth photovoltaic support system which are sequentially and spacedly arranged on the steel pipe column group from bottom to top, and the spacing between adjacent photovoltaic support systems is greater than the height of the offshore photovoltaic support frame; wherein the profile steel foundation is horizontally fixed on a barge deck; the steel pipe column group comprises a plurality of vertically arranged steel pipe columns which are spacedly arranged along the circumferential direction of the profile steel foundation and are fixed on the profile steel foundation; in the plurality of photovoltaic support systems, the first photovoltaic support system comprises a plurality of horizontally arranged first legs which are arranged in a radial manner along the circumferential direction of the steel pipe column group and have inner side ends fixed on the outer walls of the bottom ends of the plurality of steel pipe columns respectively; a plurality of first leg supports are arranged vertically below the outer side ends of the first legs respectively, and the two ends of each first leg support are fixed on the first leg and the barge deck respectively; a first leg tray is fixed on the top surface of the outer side end of each first leg, and the inner concave disc surface of the first leg tray is arranged upwards and is matched with a plurality of bolt balls at the bottom of the offshore photovoltaic support frame; the second photovoltaic support system comprises a plurality of horizontally arranged second legs which are arranged along the circumferential direction of the steel pipe column group and have inner side ends provided with sleeves so that the plurality of second legs are rotatably sleeved outside the steel pipe columns respectively; a plurality of first leg braces are arranged obliquely below the second legs respectively, and the top ends of the first leg braces are fixed on the outer side ends of the adjacent second legs, and the bottom ends of the first leg braces are provided with sleeves and are rotatably sleeved outside the adjacent steel pipe columns, so that the overall structure formed by each second leg and the first leg brace below the second leg can be rotated to between the two steel pipe columns adjacent to the second leg or can be rotated to outside the steel pipe column and arranged in a radial manner; the other photovoltaic support systems have the same structure as the second photovoltaic support system.

[0008] Further, the number N of the photovoltaic support systems is 3, 4, 5 or 6.

[0009] Further, the profile steel foundation adopts an X-shaped or T-shaped frame composed of a plurality of profile steels; and the number of the steel pipe columns in the steel pipe column group is at least three.

[0010] Further, the steel pipe column adopts a column body with equal diameters or a column body with a larger lower diameter than an upper diameter; the heights of the plurality of steel pipe columns are the same and are adapted to the total height of the plurality of offshore photovoltaic support frames stacked and arranged in batches.

[0011] Further, a plurality of inter-column supports are arranged between every two adjacent steel pipe columns, the inter-column supports comprise horizontal supports and inclined supports which are arranged alternately.

[0012] Further, in the second photovoltaic support system and other photovoltaic support systems above it, a limiting disc is sleeved and fixed on each position on the steel pipe column for setting each leg and each leg bracing, so that the bottom end of the sleeve set on the inner side end of each leg and each leg bracing abuts on the top surface of the limiting disc for limiting; a limiting plate set is further arranged on the top surface of each leg and the top surface of the limiting disc below it, and on the top surface of each leg bracing and the top surface of the limiting disc below it, respectively, and the limiting plate set is composed of two vertically arranged limiting plates, which are fixed on the top surface of the limiting disc and the sidewall of the bottom end of the sleeve, respectively, and when the leg and the leg bracing are synchronously rotated to the outside of the steel pipe column and arranged in a radial manner, the limiting plates on the inner side end sleeves abut on the limiting plates on the limiting disc below them, respectively, to determine the rotation in place.

[0013] Further, the limiting plate is a magnetic limiting plate, and the two limiting plates on the sleeve and the limiting disc can be connected by magnetic force, so that the leg and the leg bracing below it can be temporarily fixed on the outside of the steel pipe column and arranged in a radial manner.

[0014] Further, in the second photovoltaic support system and other photovoltaic support systems above it, each leg adopts a telescopic structure, the top end of each leg bracing is fixed at the outside end of the fixed part of the leg above it without telescoping, and each leg tray is fixed at the outside end of the movable part.

[0015] A method for barge operation is realized by using the above-mentioned rotating and retracting offshore photovoltaic support frame stacking tool, and the steps are as follows:

[0016] S1, according to the size of the offshore photovoltaic support frame, determine the number and position of the rotating and retracting offshore photovoltaic support frame stacking tool on the deck of the barge; according to the carrying capacity of the barge, determine the single batch transportation quantity of the offshore photovoltaic support frame; and then customize and assemble the rotating and retracting offshore photovoltaic support frame stacking tool;

[0017] S2, assemble the offshore photovoltaic support frame on land, and do not install the lifting point position and the setting position of the rotating and retracting offshore photovoltaic support frame stacking tool, and place them on the barge for synchronous transportation;

[0018] S3, fix a plurality of rotating and retracting offshore photovoltaic support frame stacking tools at the setting positions on the deck of the barge;

[0019] S4, rotate the legs and braces in the second photovoltaic support system and other photovoltaic support systems above it between the steel pipe columns; the hoisting equipment lifts the first layer of offshore photovoltaic support frames, and passes through the plurality of photovoltaic panel spaces reserved thereon and sets the plurality of rotating and retracting offshore photovoltaic support frame stacking tools, until the first photovoltaic support system, and the plurality of bolt balls on the lower chord of the first layer of offshore photovoltaic support frames are respectively placed on each first leg tray;

[0020] S5, rotate the legs and braces in the second photovoltaic support system to be radially arranged outside the steel pipe column group, the hoisting equipment hoists the second layer of offshore photovoltaic support, and is lowered through the reserved photovoltaic panel space and is provided with a plurality of rotating retractable offshore photovoltaic support stacking toolings, until the second photovoltaic support system, the lower chord of the second layer of offshore photovoltaic support is provided with a plurality of bolt balls, which are respectively placed on the second leg tray;

[0021] S6, in the same way as step S5, hoist the remaining offshore photovoltaic support, and sequentially lower from bottom to top to the remaining photovoltaic support system, so that the plurality of offshore photovoltaic supports are stacked on the barge;

[0022] S7, take the rope binding method to reinforce, connect and fix the stacked multi-layer offshore photovoltaic support;

[0023] S8, the barge transports the stacked multi-layer offshore photovoltaic support to the construction site, and after the reinforcing binding ropes are untied, the crane ship hoists each offshore photovoltaic support in turn from top to bottom and hoists it to the designated offshore pile foundation;

[0024] S9, after the plurality of legs at the bottom of the offshore photovoltaic support are welded and fixed with the plurality of steel pipe piles of the offshore pile foundation as a whole, the uninstalled photovoltaic panels transported on the barge are supplemented on the offshore photovoltaic support.

[0025] Compared with the prior art, the rotating retractable offshore photovoltaic support stacking tooling has simple structure and convenient operation, and through the first photovoltaic support system, the second photovoltaic support system and the third photovoltaic support system sequentially arranged on the steel pipe pile group from bottom to top, the tooling structure is extended from the deck in the vertical direction to the specified stacking height, and through the use of the photovoltaic panel space reserved in the offshore photovoltaic support, the plurality of offshore photovoltaic supports are provided with the tooling, and are assembled with the photovoltaic support system. The barge transportation method using the stacking tooling can transport multiple layers of photovoltaic supports at a time, and in actual application, the tooling does not need to be assembled and disassembled for each layer of net rack stacking, which greatly saves the time for onshore loading and offshore installation, improves the construction efficiency, and reduces the construction cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic view of the barge deck of the embodiment of the present application fixed with four offshore photovoltaic support stacking toolings;

[0027] Figure 2 is a structural schematic view of the offshore photovoltaic support stacking tooling in the rotating and retracting state of the embodiment of the present application;

[0028] Figure 3 is a structural schematic view of the offshore photovoltaic support stacking tooling in the rotating and supporting state of the embodiment of the present application;

[0029] Figure 4 Structure diagram of a first photovoltaic support system of a marine photovoltaic support stack assembly tool according to an embodiment of the present application;

[0030] Figure 5 Structure diagram of a second photovoltaic support system of a marine photovoltaic support stack assembly tool according to an embodiment of the present application;

[0031] Figure 6 Structure diagram of a marine photovoltaic support stack assembly tool according to an embodiment of the present application;

[0032] Figure 7 Structure diagram of a marine photovoltaic support stack assembly tool according to an embodiment of the present application;

[0033] Figure 8 Structure diagram of a marine photovoltaic support stack assembly tool according to an embodiment of the present application;

[0034] Figure 9 Structure diagram of a marine photovoltaic support stack assembly tool according to an embodiment of the present application;

[0035] Figure 10 Structure diagram of a marine photovoltaic support stack assembly tool according to an embodiment of the present application. DETAILED DESCRIPTION

[0036] The present application will be further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are in no way limiting to the present application.

[0037] Reference Figures 1-10The rotating and retractable offshore photovoltaic bracket stacking tooling is suitable for batch transportation of offshore photovoltaic brackets 2 using a barge 1; wherein, the offshore photovoltaic bracket 2 is a large-size structural bracket, which is pre-assembled on land and then transported to a designated construction location at sea via a barge 1. In this embodiment, the offshore photovoltaic support 2 includes a photovoltaic assembly, a support truss and a connecting leg arranged in sequence from top to bottom; wherein, the photovoltaic assembly is composed of a plurality of photovoltaic panels 2-4, which are laid flat and fixed on the top surface of the support truss through a connecting assembly; the support truss includes a frame-type upper support surface formed by splicing and connecting a plurality of upper chords 2-3, and a frame-type lower support surface formed by splicing and connecting a plurality of lower chords 2-1, the upper support surface is arranged parallel to and directly above the lower support surface, and the two are connected and fixed to form a truss-type integral structure by a plurality of diagonal braces 2-2; specifically, the lower chord 2-1 and the diagonal brace 2-2, as well as the lower chord 2-1 and the diagonal brace 2-2 are connected by bolt balls 2-5 to ensure the connection strength; there are four connecting legs, which are evenly fixed at the bottom of the support truss for plug-in connection and fixation with the offshore steel pipe pile foundation.

[0038] Based on this, since a plurality of bolt balls 2-5 are evenly distributed on the bottom surface of the offshore photovoltaic bracket 2, and the bolt balls 2-5 are arranged in a manner that protrudes downward from the lower chord 2-1, the offshore photovoltaic bracket 2 can be stably set on the deck of the barge 1 through a plurality of tooling arranged circumferentially at its bottom, and a corresponding structure designed on the tooling that can support and support the bottom of several bolt balls 2-5.

[0039] See also Figure 2 and Figure 3 The rotating and retractable offshore photovoltaic bracket stacking tooling specifically includes a steel foundation, a steel pipe column group, and a first photovoltaic support system, a second photovoltaic support system and a third photovoltaic support system arranged on the steel pipe pile group from bottom to top; wherein, the steel foundation is used to fix the tooling to the barge deck, and the steel pipe column group is composed of four steel pipe columns 3-5, so as to realize that the tooling structure extends upward from the deck of the barge 1 in the vertical direction to the specified stacking height, and the first photovoltaic support system, the second photovoltaic support system and the third photovoltaic support system are respectively coordinated with the three offshore photovoltaic brackets 2 to be transported in the same batch, and are arranged in sequence from bottom to top on the deck of the barge 1, so as to complete the one-time batch transportation of three offshore photovoltaic brackets 2 using the barge 1.

[0040] The steel foundation is a tic-tac-toe frame formed by welding and fixing multiple steel sections 3-4; the tic-tac-toe frame is arranged horizontally. In actual application, the bottom surface of the tic-tac-toe frame is welded to a designated position on the deck of the barge 1.

[0041] The four steel pipe columns 3-5 are vertically arranged and fixed at the four intersection points of the well-shaped frame through the bottom end, so that the radial section of the steel pipe column group is rectangular; in this embodiment, the heights of the four steel pipe columns 3-5 are the same and are adapted to the total height of the three offshore photovoltaic supports 2 arranged in a staggered manner; the steel pipe columns 3-5 are variable-diameter steel pipe columns with a larger diameter at the lower side than at the upper side, so as to increase the structural support strength of the bottom side of the steel pipe column 3-5. A plurality of inter-column supports 3-6 are also arranged in a staggered manner from top to bottom between each adjacent two steel pipe columns 3-5, so as to be connected in a reinforcing manner; specifically, the inter-column supports 3-6 include cross braces and diagonal braces arranged in an alternating manner, so that the steel pipe column group forms a truss structure with higher structural strength.

[0042] The size of the steel foundation and the spacing between the adjacent steel pipe columns 3-5 fixed thereon are adapted to the weight and size of the offshore photovoltaic support 2 and the positions of the plurality of bolt balls 2-5 connected to the top and bottom chords, so as to increase the force bearing area of the barge 1 deck by using the steel foundation while meeting the assembly requirements and reducing the concentrated force.

[0043] As a preferred technical solution of this embodiment, a plurality of reinforcing rib plates are arranged in a circumferential direction at the bottom end of each steel pipe column 3-5, each reinforcing rib plate is vertically arranged, and two right-angle edges thereof are respectively welded and fixedly connected to the outer wall of the steel pipe column 3-5 and the top surface of the steel, so as to increase the connection strength by increasing the connection area of the two.

[0044] The first photovoltaic support system, the second photovoltaic support system and the third photovoltaic support system are sequentially arranged on the steel pipe column group from bottom to top, and the spacing between the adjacent photovoltaic support systems is greater than the height of the offshore photovoltaic support 2, so as to avoid interference between the offshore photovoltaic support 2 and the movable parts in the photovoltaic support system above, thereby avoiding collision.

[0045] Referring to Figure 6 , the first photovoltaic support system includes four first legs 3-1 arranged in a radial manner along the circumferential direction of the steel pipe column group and fixed at the outer walls of the bottom ends of the four steel pipe columns 3-5; four first leg supports 3-3 are vertically arranged and fixed at the bottom surfaces of the outer side ends of the four first legs 3-1 through the top ends; four first leg trays 3-2 are fixed at the top surfaces of the outer side ends of the four first legs 3-1 through the bottom ends with the inner concave surfaces facing upward; the inner concave surface of the first leg tray 3-2 can be embedded and matched with the bottom of the bolt ball 2-5, and the length of the first leg 3-1 is adapted to the distance from the steel pipe column 3-5 to the adjacent bolt ball 2-5, so that the four first leg trays 3-2 can be embedded and matched with the four bolt balls 2-5 at the bottom of the offshore photovoltaic support 2 above at the same time.

[0046] Referring to Figure 7, the second photovoltaic support system comprises four second legs 3-7 arranged horizontally, which are arranged along the circumferential direction of the steel pipe column group, and the inner end of the second leg 3-7 is provided with a sleeve, so that the four second legs 3-7 are respectively sleeved outside the four steel pipe columns 3-5 and can rotate around the steel pipe column 3-5; four first leg braces 3-9 are respectively arranged obliquely below the four second legs 3-7, and the top end is fixed to the outer end bottom surface of the adjacent second leg 3-7, and the bottom end is provided with a sleeve, so that the four first leg braces 3-9 are also respectively sleeved outside the four steel pipe columns 3-5; and the length of the structure formed by the second leg 3-7 and the first leg brace 3-9 connected in the horizontal direction is slightly smaller than the distance between the two adjacent steel pipe columns 3-5, so that the second leg 3-7 and the first leg brace 3-9 can be rotated to between the two adjacent steel pipe columns 3-5, that is, as shown in Figure 2 , the rotary contraction state, or synchronously rotated to the outside of the steel pipe column 3-5 to be arranged in a radial manner, that is, as shown in Figure 3 , the rotary support state.

[0047] In order to arrange the second leg 3-7 and the first leg brace 3-9 at the specified height position of the steel pipe column 3-5, the second photovoltaic support system further comprises eight limiting discs 3-13; specifically, at two positions of each steel pipe column 3-5 where the second leg 3-7 and the first leg brace 3-9 are arranged, one limiting disc 3-13 is respectively sleeved and horizontally fixed, so that the sleeve of the inner end of the second leg 3-7 and the first leg brace 3-9 is abutted on the top surface of the limiting disc 3-13 to position the arrangement height of the two; at the same time, a limiting plate set is arranged on the top surface of the limiting disc 3-13 below the second leg 3-7 and the top surface of the limiting disc 3-13 below the first leg brace 3-9; the limiting plate set is composed of two vertically arranged limiting plates 3-14, which are respectively vertically fixed on the top surface of the limiting disc 3-13 and the bottom end side wall of the sleeve, and satisfy that when the second leg 3-7 and the first leg brace 3-9 are synchronously rotated to the rotary support state, the limiting plates 3-14 on the inner end sleeves of the second leg 3-7 and the first leg brace 3-9 are respectively abutted on the limiting plates 3-14 on the limiting disc 3-13 below, so as to determine that the second leg 3-7 and the first leg brace 3-9 are rotated in place, that is, arranged in a radial manner outside the steel pipe column group, and just located at the matching angle of the bolt ball 2-5; in this embodiment, the limiting plate 3-14 adopts a magnetic limiting plate, and the two limiting plates 3-14 on the sleeve and the limiting disc 3-13 can be connected by magnetic attraction.

[0048] The four second leg trays 3-8 are fixed on the outer side end top surfaces of the four second legs 3-7 in a manner that the inner concave disc surfaces thereof face upwards, wherein the inner concave disc surfaces of the second leg trays 3-8 can be embeddedly matched with the bottom portions of the bolt balls 2-5, and the lengths of the second legs 3-7 are adapted to the distances from the steel pipe columns 3-5 to the adjacent bolt balls 2-5, so that the setting positions of the four second leg trays 3-8 can be embeddedly matched with the four bolt balls 2-5 on the bottom of the offshore photovoltaic support 2 above the four second leg trays 3-8.

[0049] The third photovoltaic support system has the same structure as the second photovoltaic support system; specifically, the third photovoltaic support system comprises four third legs 3-10 arranged horizontally and arranged along the circumferential direction of the steel pipe column group; four second leg braces 3-12 are arranged obliquely below the four third legs 3-10, and the top ends thereof are fixed on the outer side end bottom surfaces of the adjacent third legs 3-10, and the bottom ends thereof are fixed on the side walls of the adjacent steel pipe columns 3-5; four third leg trays 3-11 are fixed on the outer side end top surfaces of the four third legs 3-10 in a manner that the inner concave disc surfaces thereof face upwards; wherein the inner concave disc surfaces of the third leg trays 3-11 can be embeddedly matched with the bottom portions of the bolt balls 2-5, and the lengths of the third legs 3-10 are adapted to the distances from the steel pipe columns 3-5 to the adjacent bolt balls 2-5, so that the setting positions of the four third leg trays 3-11 can be embeddedly matched with the four bolt balls 2-5 on the bottom of the offshore photovoltaic support 2 above the four third leg trays 3-11.

[0050] A limiting disc 3-13 is sleeved and fixed on each of the two positions on each steel pipe column 3-5 where the third leg 3-10 and the second leg brace 3-12 are arranged, so that the sleeves at the inner side ends of the third leg 3-10 and the second leg brace 3-12 abut against the top surfaces of the two limiting discs 3-13; a limiting plate set is arranged on the top surface of the limiting disc 3-13 below the third leg 3-10 and on the top surface of the limiting disc 3-13 below the second leg brace 3-12; two limiting plates 3-14 constituting the limiting plate set are fixed on the top surface of the limiting disc 3-13 and the bottom end side wall of the sleeve respectively, so as to determine the rotation of the third leg 3-10 and the second leg brace 3-12 to the right position.

[0051] As a preferred technical solution of the present embodiment, in each photovoltaic support system, a plurality of reinforcing rib plates are arranged along the circumferential direction between the leg tray and the leg below the leg tray, so as to increase the structural strength between the leg tray and the leg.

[0052] As a preferred technical solution of the embodiment, the second leg 3-7 and the third leg 3-10 located on the structure of the second photovoltaic support system and the third photovoltaic support system are both provided with a telescopic structure, such as a telescopic sleeve, so that the length thereof can be adjusted according to the distance of the bolt ball 2-5 on the offshore photovoltaic support 2, that is, the length is increased when rotated to the support point, and the length is shortened when retracted to rotate between the adjacent steel pipe columns 3-5, so as to ensure that the retraction can be realized. Correspondingly, the top end of the first leg diagonal brace 3-9 and the second leg diagonal brace 3-12 are respectively welded and fixed on the outer side end bottom surface of the outer pipe body of the second leg 3-7 and the third leg 3-10, and the second leg tray 3-8 and the third leg tray 3-11 are respectively welded and fixed on the outer side end top surface of the inner pipe body of the second leg 3-7 and the third leg 3-10. The structure setting mode is suitable for the case of supporting a large distance. Since the steel pipe column 3-5 is far away from the bolt ball 2-5, when the leg satisfies the cooperation with the bolt ball 2-5, due to the small spacing between the adjacent steel pipe columns 3-5, the retraction between the adjacent steel pipe columns cannot be realized. Therefore, the telescopic structure can solve this problem.

[0053] Referring to Figures 1-10 Taking the stacked three-layer offshore photovoltaic support 2 of the embodiment as an example, the specific barge operation method of the rotary retractable offshore photovoltaic support stacking tool is described as follows:

[0054] S1, according to the size of the offshore photovoltaic support 2, the number of the rotary retractable offshore photovoltaic support stacking tool 3 arranged on the deck of the barge 1 is determined to be four, and the arrangement positions of the four rotary retractable offshore photovoltaic support stacking tools 3 on the deck are determined based on the uniform distribution principle; according to the carrying capacity of the barge 1, the number of offshore photovoltaic supports 2 transported at a time is determined to be three; then, according to the required number of the rotary retractable offshore photovoltaic support stacking tool 3 and the stacking number of the offshore photovoltaic support 2, the rotary retractable offshore photovoltaic support stacking tool 3 is customized;

[0055] S2, the offshore photovoltaic support 2 is assembled on land, wherein the photovoltaic panels 2-4 at the hoisting point position on the offshore photovoltaic support 2 and the arrangement position of the rotary retractable offshore photovoltaic support stacking tool 3 are not installed, but are placed at the designated position of the barge 1 for synchronous transportation;

[0056] S3, the four rotary retractable offshore photovoltaic support stacking tools 3 are welded and fixed on the designated positions on the deck of the barge 1 through the base of the profile steel;

[0057] S4, rotate the legs and braces in the second and third photovoltaic support systems between the steel pipe columns 3-5 to a swivel retracted state; use hoisting equipment to lift the first layer of offshore photovoltaic supports 2 above the four rotating retracted offshore photovoltaic support stacking tooling 3, and then gradually lower it, so that the offshore photovoltaic supports 2 pass through the four rotating retracted offshore photovoltaic support stacking tooling 3 through the four photovoltaic panel spaces reserved thereon, and reach the photovoltaic support system, so that the lower chord bolt ball 2-5 of the first layer of offshore photovoltaic supports 2 rests on the first leg tray 3-2 at the bottom thereof;

[0058] S5, the legs and braces in the third photovoltaic support system remain in the swivel retracted state, while the legs and braces in the second photovoltaic support system are rotated to change to a rotating support state, which on the one hand forms a limiting and fixing of the first layer of offshore photovoltaic supports 2 below, and on the other hand prepares for the stacking of the second layer of offshore photovoltaic supports 2; then, using hoisting equipment, the second layer of offshore photovoltaic supports 2 is lifted to above the four rotating retracted offshore photovoltaic support stacking tooling 3, and then gradually lowered, so that the offshore photovoltaic supports 2 pass through the rotating retracted offshore photovoltaic support stacking tooling 3 through the photovoltaic panel 2-4 space reserved thereon, and the lower chord bolt ball 2-5 of the offshore photovoltaic supports 2 rests on the second leg tray 3-7 thereof;

[0059] S6, rotate the legs and braces in the third photovoltaic support system to change to a rotating support state, and use hoisting equipment to lift the third layer of offshore photovoltaic supports 2 to above the four rotating retracted offshore photovoltaic support stacking tooling 3, and then gradually lower it, so that the offshore photovoltaic supports 2 pass through the rotating retracted offshore photovoltaic support stacking tooling 3 through the photovoltaic panel 2-4 space reserved thereon, and the lower chord bolt ball 2-5 of the offshore photovoltaic supports 2 rests on the third leg tray 3-10 thereof;

[0060] S7, adopt a rope binding method to reinforce, connect and fix the stacked three layers of offshore photovoltaic supports 2;

[0061] S8, the barge 1 transports the stacked three layers of offshore photovoltaic supports 2 to the construction site and releases the reinforcing binding measures; the crane ship lifts each layer of offshore photovoltaic supports 2 in turn from top to bottom to install and fix them on the offshore steel pipe piles; wherein, when lifting the layer of offshore photovoltaic supports 2, the legs and braces in the photovoltaic support system above the offshore photovoltaic supports 2 are rotated to a swivel retracted state;

[0062] S9, after welding and fixing the multiple legs at the bottom end of each layer of offshore photovoltaic supports 2 to the multiple steel pipe piles previously arranged offshore to form a whole, the offshore photovoltaic supports 2 are supplemented and installed on the offshore photovoltaic supports 2, and the offshore photovoltaic support 2 installation work is completed.

[0063] It should be noted that parts of the application not specifically disclosed are known in the art; furthermore, although the above description on the illustrative embodiments of the application has been described in order to enable those skilled in the art to understand the application, it should be clear that the application is not limited to the scope of the specific embodiments, and that all the modifications that would be obvious to a person skilled in the art, within the spirit and scope of the application as defined by the claims appended hereto, are intended to be included.

Claims

1. A rotary and retractable offshore photovoltaic bracket stacking tooling, characterized in that: It includes a steel foundation, a steel pipe column group, and a first photovoltaic support system, a second photovoltaic support system, ..., and an Nth photovoltaic support system arranged on the steel pipe pile group in sequence from bottom to top, and the spacing between adjacent photovoltaic support systems is greater than the height of the offshore photovoltaic bracket; wherein the steel foundation is horizontally fixed on the barge deck; the steel pipe column group includes a plurality of vertically arranged steel pipe columns, which are arranged at intervals along the circumference and fixed on the steel foundation; among the plurality of photovoltaic support systems, the first photovoltaic support system includes a plurality of horizontally arranged first legs, which are radially arranged along the circumferential direction of the steel pipe column group, and the inner ends are respectively fixed on the outer walls of the bottom ends of the plurality of steel pipe columns; a plurality of first leg supports are respectively vertically arranged below the outer ends of each first leg, and their two ends are respectively fixed on the first leg and the barge deck; each first A first leg tray is fixed on the top surface of the outer end of the leg, and its concave disk is arranged facing upward and engages with multiple bolt balls at the bottom of the offshore photovoltaic bracket; the second photovoltaic support system includes multiple horizontally arranged second legs, which are arranged along the circumferential direction of the steel pipe column group, and the inner end is provided with a sleeve, so that the multiple second legs are rotated and sleeved on the outside of each steel pipe column; multiple first leg diagonal braces are respectively obliquely arranged under each second leg, and the top end is fixed to the outer end of the adjacent second leg, and the bottom end is provided with a sleeve and rotated and sleeved on the outside of the adjacent steel pipe column, so that the overall structure formed by each second leg and the first leg diagonal brace below it can be rotated between the two adjacent steel pipe columns, or rotated to the outside of the steel pipe column and arranged radially; other photovoltaic support systems have the same structure as the second photovoltaic support system.

2. The rotary and retractable offshore photovoltaic bracket stacking tooling according to claim 1 is characterized in that: The number N of photovoltaic support systems is 3, 4, 5 or 6.

3. The rotary and retractable offshore photovoltaic bracket stacking tooling according to claim 1 is characterized in that: The steel foundation adopts a well-shaped or field-shaped frame composed of multiple steel sections; the number of steel pipe columns in the steel pipe column group is at least three.

4. The rotary and retractable offshore photovoltaic bracket stacking tooling according to claim 1 is characterized in that: The steel pipe columns are columns of equal diameter, or columns with a lower diameter larger than the upper diameter; multiple steel pipe columns have the same height and are adapted to the total height of multiple offshore photovoltaic brackets transported in batches and stacked at intervals.

5. The rotary and retractable offshore photovoltaic support stacking tooling according to claim 1 is characterized in that: A plurality of inter-column supports are arranged between every two adjacent steel pipe columns. The inter-column supports include horizontal braces and diagonal braces, and the two are arranged alternately.

6. The rotary and retractable offshore photovoltaic support stacking tooling according to claim 1 is characterized in that: In the second photovoltaic support system and other photovoltaic support systems above it, a limit plate is mounted and fixed on the position of each steel pipe column for setting each support leg and each support leg diagonal brace, so that the bottom end of the sleeve set at the inner end of each support leg and each support leg diagonal brace abuts against the top surface of the limit plate for limiting; a limit plate group is also set on the top surface of each support leg and the limit plate below it, and on the top surface of each support leg diagonal brace and the limit plate below it. The limit plate group consists of two vertically arranged limit plates, which are respectively fixed on the top surface of the limit plate and the side wall of the bottom end of the sleeve, and meet the requirement that when the support legs and the support leg diagonal braces rotate synchronously to the outside of the steel pipe column and are arranged radially, the limit plates on the inner end sleeves of the two abut against the limit plates on the limit plate below them to ensure that they are rotated into place.

7. The rotary and retractable offshore photovoltaic support stacking tooling according to claim 1 is characterized in that: The limiting plate adopts a magnetic limiting plate, and the two limiting plates located on the sleeve and the limiting plate can be connected by magnetic attraction, so that the support leg and the support leg diagonal support below it can be temporarily fixed on the outside of the steel pipe column and arranged radially.

8. The rotary and retractable offshore photovoltaic support stacking tooling according to claim 1, characterized in that: In the second photovoltaic support system and other photovoltaic support systems above it, each leg adopts a retractable structure, and the top end of each leg diagonal support is fixed to the outer end of the fixed part of the upper leg where no extension or retraction occurs, and each leg tray is fixed to the outer end of the retractable movable part.

9. A method for barging operations using the rotating and retractable offshore photovoltaic support stacking tooling according to any one of claims 1 to 8, characterized in that: The steps are: S1. Determine the number and location of the rotating and retractable offshore photovoltaic support stacking fixtures on the barge deck based on the size of the offshore photovoltaic support; determine the single batch transportation quantity of the offshore photovoltaic support based on the carrying capacity of the barge; and then customize and assemble the rotating and retractable offshore photovoltaic support stacking fixtures; S2. Assemble the offshore photovoltaic support on land, and temporarily do not install the photovoltaic panels at the lifting point position and the location of the rotating and retractable offshore photovoltaic support stacking tooling, and place them on the barge for simultaneous transportation; S3. Fixing multiple rotating and retractable offshore photovoltaic bracket stacking fixtures on the installation position on the barge deck; S4. Rotate the legs and diagonal braces of the second photovoltaic support system and other photovoltaic support systems above it to between the steel pipe columns; lift the first layer of offshore photovoltaic support with a lifting device, and lower it through the multiple photovoltaic panel spaces reserved thereon and pass through multiple rotating and retractable offshore photovoltaic support stacking tooling until it reaches the first photovoltaic support system. Multiple bolt balls on the lower chord of the first layer of offshore photovoltaic support are respectively placed on the first leg trays; S5. Rotate the legs and diagonal braces in the second photovoltaic support system to be arranged radially outside the steel pipe column group. Lift the second-layer offshore photovoltaic support with a lifting device and lower it through the multiple photovoltaic panel spaces reserved thereon and pass through multiple rotating and retractable offshore photovoltaic support stacking fixtures until the second photovoltaic support system is reached. Multiple bolt balls on the lower chord of the second-layer offshore photovoltaic support are respectively placed on the second leg trays. S6. Using the same method as step S5, hoist the remaining offshore photovoltaic brackets and lower them to the remaining photovoltaic support systems from bottom to top, so that multiple offshore photovoltaic brackets are stacked on the barge; S7. Use rope bundling to reinforce and connect the stacked multi-layer offshore photovoltaic supports; S8. The barge transports the stacked multi-layer offshore photovoltaic brackets to the construction site. After the reinforced binding ropes are untied, the crane ship lifts each offshore photovoltaic bracket from top to bottom in turn and lifts it to the designated offshore pile foundation; S9. After welding and fixing the multiple legs at the bottom of the offshore photovoltaic bracket and the multiple steel pipe piles on the offshore pile foundation into a whole, the uninstalled photovoltaic panels transported on the barge are installed on the offshore photovoltaic bracket.

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