Cable system and method for installation of a floating catenary photovoltaic assembly module

Abstract

The application discloses a cable system and installation method for sliding installation of a marine photovoltaic module, the cable system comprising load-bearing cables, end beams and a plurality of middle beams arranged in the middle of the end beams, the load-bearing cables being anchored and tensioned on the end beams, the middle beams and the end beams being provided with guide rail type embedding structures capable of enabling the photovoltaic module to continuously slide, the guide rail type embedding structures comprising a bottom plate, a guide rail, a U-shaped buckle and a bolt, the bottom plate being fixed on the middle beam or the end beam, the guide rail being fixed on the bottom plate, the guide rail being arc-shaped, the arc-shaped surface of the guide rail being provided with a semicircular guide groove with the same diameter as the load-bearing cable, the two side surfaces of the guide rail being provided with clamping grooves, the load-bearing cable being embedded in the guide groove and fixed with the bottom plate through the U-shaped buckle and the bolt at the clamping groove position, and the upper part of the U-shaped buckle not being exposed at the clamping groove position. The guide rail type embedding structure is adopted, so that the sliding skid of the photovoltaic module can smoothly slide through the guide rail of the middle beam and the end beam, the photovoltaic module is realized to continuously slide in multiple spans, and the construction efficiency and the construction convenience are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power generation technology, and specifically to a cable system and installation method for the sliding installation of offshore cable-stayed photovoltaic module modules. Background Technology

[0002] Since entering the industry's view in 2022, offshore photovoltaic (PV) technology has been developing for over two years. The application of grid-type and truss-type PV support structures has been implemented and validated with the development of the offshore PV industry. However, the amount of steel used in these structures far exceeds that of onshore PV. Given constant sunshine and latitude, constructing offshore grid-type or truss-type PV systems in the same region is clearly not economically viable. After more than two years of research and practice, the adoption of large-span structural types for nearshore offshore PV has become an industry consensus. Large-span suspension structures have broad application prospects in the offshore PV market due to their low economic cost, reliable structural safety, and rapid and convenient construction.

[0003] Traditional offshore photovoltaic (PV) cable-stayed structures suffer from several problems, such as the need for segmented installation across spans, requiring multiple installations, resulting in long installation cycles and high risks associated with offshore construction. Furthermore, traditional offshore PV cable-stayed structures use hanging plates at both ends, making it impossible for the PV module pulleys to pass through. Summary of the Invention

[0004] The purpose of this invention is to provide a cable system and installation method for the sliding installation of offshore cable-stayed photovoltaic module modules, in order to solve the problems mentioned in the background art.

[0005] The present invention is achieved through the following technical solution.

[0006] This invention provides a cable system for the sliding installation of marine photovoltaic module modules, including a load-bearing cable, an end beam, and multiple middle beams arranged in the middle of the end beam. The load-bearing cable is tensioned and anchored on the end beam. The middle beams and end beams are provided with a guide rail type fixing structure that enables the photovoltaic module modules to slide continuously. The guide rail type fixing structure includes a base plate, a guide rail, a Z-shaped buckle, and bolts. The base plate is fixed on the middle beam or end beam, and the guide rail is fixed on the base plate. The guide rail is arc-shaped, and its arc surface has a semi-circular guide groove with the same diameter as the load-bearing cable. The two sides of the guide rail have slots. The load-bearing cable is fixed in the guide groove and fixed to the base plate by the Z-shaped buckle and bolts at the slot position. The upper part of the Z-shaped buckle is not exposed at the slot position.

[0007] Furthermore, the middle beam is equipped with a guide wire mechanism to guide the traction rope. The guide wire mechanism includes a guide plate and a guide rod. The guide plate is made of flat steel bent and fixed to the base plate with connecting bolts. Its upper end is inclined outward. The guide rod is made of smooth round steel and its lower end is fixed to the guide plate and sharpened. After the line is laid out, the guide wire mechanism is removed and the guide rail type embedded structure is installed.

[0008] Furthermore, the traction rope serves a traction function and can be made of various rope materials, such as steel strand, steel wire rope, and nylon thread.

[0009] Furthermore, the end beam is equipped with a guide plate mechanism, which includes a guide frame. The guide frame is made of flat steel bent and fixed to the outside of the base plate. The inner opening size of its bottom corresponds to the outer frame size of the photovoltaic module, and the upper part is inclined outward.

[0010] The present invention also provides a method for sliding installation of offshore photovoltaic module, which is implemented using the above-mentioned cable system and includes the following steps:

[0011] Step 1: Drive the pile, then install the middle beam and end beam. The guide rail type embedding structure on the middle beam has been fixed to the middle beam in advance, and the guide rail type embedding structure on the end beam has been fixed to the end beam in advance. At this time, the guide rail type embedding structure is in the line laying state, that is, the wire guide mechanism and the guide plate mechanism are installed, but the middle beam Z-shaped buckle and the end beam Z-shaped buckle are not installed.

[0012] Step 2: Use a drone to pull a traction rope from one end beam to the other end beam. Guided by the wire guide mechanism, the traction rope is positioned on the middle beam guide rail and the end beam guide rail. Then, under the traction of the traction rope, pull a PP rope. Then, under the traction of the PP rope, pull the load-bearing cable into place. Guided by the wire guide mechanism, the load-bearing cable is also positioned on the middle beam guide rail and the end beam guide rail.

[0013] Step 3: Tension the load-bearing cable, tension the load-bearing cable to the design tension, and then anchor it to the anchor plate;

[0014] Step 4: Loosen the connecting bolts of the guide wire mechanism on the middle beam, remove the guide wire mechanism, install the Z-shaped buckle, and install the Z-shaped buckle on the end beam;

[0015] Step 5: Hoist the photovoltaic module onto the end beam, and under the guidance of the guide plate mechanism, accurately lower it onto the load-bearing cable. After connecting the traction rope, it can be slid for installation.

[0016] The beneficial effects of this invention are:

[0017] 1. By setting guide rail-type embedding structures on the middle beam and end beams, the skids used to transport photovoltaic module modules can pass smoothly through the guide rail-type embedding structures. In other words, the photovoltaic module modules can slide across the guide rails of the middle beam and end beams, realizing continuous sliding of photovoltaic module modules across multiple spans, which greatly improves construction efficiency and convenience.

[0018] 2. By setting anchor plates on the end beams, the entire load-bearing cable can be installed in one traction and one tensioning operation, eliminating the need for multiple installations and tensioning operations per span, thus improving the installation efficiency of the load-bearing cable.

[0019] 3. The unmanned cable system installation technology is adopted. When installing the load-bearing cable, no personnel are required. The entire length of the load-bearing cable can be installed and pulled at once, which improves the installation efficiency. The upper opening of the wire mechanism is very wide, which can easily accommodate the drone to release the traction rope. After the wire is released, the wire mechanism can be easily removed without affecting the sliding of the photovoltaic module.

[0020] 4. By adopting the technology of setting the starting point for the sliding of photovoltaic module on the end beam, the photovoltaic module can be easily hoisted onto the end beam and accurately placed on the load-bearing cable under the guidance of the guide plate mechanism. At this time, the end beam serves as the starting point for the sliding of the photovoltaic module. Under the action of the traction rope, the photovoltaic module can slide, which improves the installation efficiency, reduces the process of moving the installation vessel as the installation position of the photovoltaic module changes, simplifies the construction process, and improves the construction accuracy. Attached Figure Description

[0021] Figure 1 This is a plan view of the cable system for the sliding installation of the marine photovoltaic module module of the present invention.

[0022] Figure 2 This is a schematic diagram of the sliding motion of the marine photovoltaic module module of the present invention.

[0023] Figure 3 This is a plan view of the beam guide rail type embedded structure in this invention.

[0024] Figure 4 This is an elevation view of the beam guide rail type embedded structure in this invention.

[0025] Figure 5 This is a cross-sectional view of the guide rail section of the beam-guide rail type embedded structure in this invention.

[0026] Figure 6 This is a cross-sectional view of the zigzag buckle section of the beam guide rail type embedded structure in this invention.

[0027] Figure 7 This is an elevation view of the arc-shaped guide rail of the present invention.

[0028] Figure 8 This is a plan view of the guide rail of the present invention.

[0029] Figure 9 This is a cross-sectional view of the guide rail groove of the present invention.

[0030] Figure 10 This is a cross-sectional view of the guide rail slot position of the present invention.

[0031] Figure 11 This is a plan view of the wire laying state of the beam conductor mechanism in this invention.

[0032] Figure 12 This is an elevation view of the beam conductor mechanism in the present invention, showing the wire laying state.

[0033] Figure 13 This is a cross-sectional view of the beam conductor mechanism in the present invention, showing the wire laying state.

[0034] Figure 14 This is a plan view of the guide plate fixing of the beam conductor mechanism in this invention.

[0035] Figure 15 This is a plan view of the end beam guide rail type embedded structure and guide plate mechanism of the present invention.

[0036] Figure 16 This is a cross-sectional view of the end beam guide rail type embedded structure and guide plate mechanism of the present invention.

[0037] Figure 17 This is an elevation view of the end beam guide rail type embedded structure and guide plate mechanism of the present invention.

[0038] Figure 18 This is a plan view of the photovoltaic module of the present invention on the end beam.

[0039] Figure 19 This is an elevation view of the photovoltaic module of the present invention being pulled on a skid by a traction rope.

[0040] In the diagram: 1-Bearing cable, 2-Middle beam guide rail type embedded structure, 21-Base plate, 22-Guide rail, 23-Z-shaped buckle, 24-Bolt, 221-Guide groove, 222-Card groove, 25-Wire mechanism, 251-Guide plate, 252-Guide rod, 253-Connecting bolt, 3-End beam guide rail type embedded structure, 31-Base plate, 32-Guide rail, 321-Guide groove, 322-Card groove, 33-Z-shaped buckle, 34-Bolt, 35-Anchor plate, 36-Guide plate mechanism, 361-Guide frame, 4-Photovoltaic module module, 5-Traction rope, 6-End beam, 7-Middle beam, 8-Skirt, 81-Pulley. Detailed Implementation

[0041] The following description further illustrates the structures involved in this invention and the technical terms used therein. These descriptions are merely illustrative of how the invention is implemented and do not constitute any limitation on the invention.

[0042] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "lateral," and "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this invention, unless otherwise explicitly specified and limited, terms such as "connection" and "fixation" should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] like Figure 1-19 As shown in the figure, this embodiment introduces a cable system for the sliding installation of a marine photovoltaic module, including a load-bearing cable 1, an end beam 6, and multiple middle beams 7 arranged in the middle of the end beam 6. The load-bearing cable 1 is tensioned and anchored on the end beam 6. The middle beams 7 and the end beams 6 are provided with a guide rail type fixing structure that enables the photovoltaic module 4 to slide continuously. The guide rail type fixing structure includes a base plate, a guide rail, a Z-shaped buckle, and bolts. The base plate is fixed on the middle beam 7 or the end beam 6, and the guide rail is fixed on the base plate. The guide rail is arc-shaped, and its arc surface has a semi-circular guide groove with the same diameter as the load-bearing cable 1. The two sides of the guide rail have slots. The load-bearing cable 1 is fixed in the guide groove and fixed to the base plate by the Z-shaped buckle and bolts at the slot position. The upper part of the Z-shaped buckle is not exposed at the slot position.

[0045] like Figure 2 , 19 As shown, the photovoltaic module 4 is placed on two parallel load-bearing cables 1. Under the traction of the traction rope 5, the photovoltaic module 4 can slide from the end beam 6 to the designated installation position. The load-bearing cables 1 are set up continuously across multiple spans, and are only tensioned and anchored on the end beams 6 at both ends. The guide rail type embedding structure allows the pulleys 81 of the skid 8 of the photovoltaic module 4 to slide smoothly across the guide rails of the middle beam 7 and the end beam 6, realizing the continuous sliding of the photovoltaic module 4 across multiple spans, which greatly improves the construction efficiency and convenience.

[0046] Specifically, such as Figure 3-10 As shown, the central beam guide rail type embedding structure 2 on the central beam 7 includes a base plate 21, a guide rail 22, a Z-shaped buckle 23, and bolts 24. The base plate 21 is welded and fixed to the central beam 7, and the guide rail 22 is welded and fixed to the base plate 21. The guide rail 22 is an arc-shaped steel structure with a semi-circular guide groove 221 on its arc surface. The diameter of the guide groove 221 is the same as the diameter of the load-bearing cable 1. A slot 222 is provided in the middle of the guide rail 222. The width of the slot 222 is the same as the width of the upper part of the Z-shaped buckle 23. The Z-shaped buckle 23 is installed in the slot 222 of the guide rail 22 and fixed to the base plate 21 by bolts 24. The Z-shaped buckle 23 embeds the load-bearing cable 1 in the slot 222. The upper part of the Z-shaped buckle 23 is not exposed at the slot 222 position, ensuring that the skid 8 passes smoothly over the guide rail 22.

[0047] like Figure 7-10As shown in Figures 15-17, the end beam guide rail type embedding structure 3 on the end beam 6 includes a base plate 31, a guide rail 32, a Z-shaped buckle 33, bolts 34, and an anchor plate 35. The base plate 31 is welded and fixed to the end beam 6, and the guide rail 32 is welded and fixed to the base plate 31. The guide rail 32 is an arc-shaped steel structure with a semi-circular guide groove 321 on its arc surface. The diameter of the guide groove 321 is the same as the diameter of the load-bearing cable 1. A slot 322 is provided in the middle of the guide rail 321. The width of the slot 322 is the same as the width of the upper part of the Z-shaped buckle 33. The Z-shaped buckle 33 is installed in the slot 322 of the guide rail 32 and fixed to the base plate 31 by bolts 34. The Z-shaped buckle 33 and the bolts 34 embed the load-bearing cable 1 in the slot 322. The upper part of the Z-shaped buckle 33 is not exposed at the slot 322 position, ensuring that the skid 8 passes smoothly over the guide rail 32. Anchor plate 35 is installed on the top of base plate 31 for prestressed anchoring of load-bearing cable 1.

[0048] like Figure 11-14 As shown, the central beam 7 is equipped with a guide wire mechanism 25 to guide the nylon line. The guide wire mechanism 25 includes a guide plate 251 and a guide rod 252. The guide plate 251 is made of flat steel bent into shape and fixed to the base plate 21 by connecting bolts 253. Its upper end is inclined outward. The guide rod 252 is made of smooth round steel, and its lower end is welded to the guide plate 251 and sharpened. The sharpening is for the convenience of welding and to leave guiding space. The guide wire mechanism 25 is installed on the base plate 21 before the line is laid out. It is used to guide the nylon line during the laying process. After the line is laid out, the guide wire mechanism 25 is removed and a Z-shaped buckle 23 is installed. The connecting bolts 253 of the guide wire mechanism 25 are used to connect the Z-shaped buckle 23, i.e., bolts 24. The function of the nylon line is to pull a PP rope (polypropylene rope), and then, under the pull of the PP rope, pull the load-bearing cable 1 into place. The wire guide mechanism 25 has a wide opening, which can easily accommodate the drone to lay the traction rope. After the line is laid, the wire guide mechanism 25 can be easily removed without affecting the sliding of the photovoltaic module 4.

[0049] like Figure 15 , 16 As shown, the end beam 6 is equipped with a guide plate mechanism 36, which includes a guide frame 361. The guide frame 361 is made of bent flat steel and fixed to the outside of the base plate 31. The inner opening size of its bottom corresponds to the outer frame size of the photovoltaic module 4, and the upper part is inclined outward. The photovoltaic module 4 is hoisted onto the end beam 6 and accurately placed on the load-bearing cable 1 under the guidance of the guide frame 361. After being connected to the traction rope 5, it can slide. The photovoltaic module 4 can be easily hoisted onto the end beam 6 and accurately placed on the load-bearing cable 1 under the guidance of the guide plate mechanism 36. At this time, the end beam 6 serves as the starting point for the sliding of the photovoltaic module 4. Under the action of the traction rope 5, the photovoltaic module 4 can slide, which improves the installation efficiency, reduces the process of moving the installation vessel as the installation position of the photovoltaic module 4 changes, simplifies the construction process, and improves the construction accuracy.

[0050] This embodiment also introduces a method for sliding installation of offshore photovoltaic module panels, implemented using the aforementioned cable system, including the following steps:

[0051] Step 1: Drive the pile, then install the middle beam 7 and the end beam 6. The guide rail type embedding structure 2 on the middle beam 7 and the guide rail type embedding structure 3 on the end beam 6 have been fixed on the middle beam 7 and the end beam 6 in advance. At this time, the guide rail type embedding structure 2 / 3 is in the laying state, that is, the wire guide mechanism 25 and the guide plate mechanism 36 are installed, but the Z-shaped buckle 23 / 33 is not installed.

[0052] Step 2: Use a drone to pull a nylon line from one end beam 6 to the other end beam 6. Guided by the wire guide mechanism 25, the nylon line is positioned at the guide rail 22 / 32. Then, under the pull of the nylon line, pull a PP rope (polypropylene rope). Then, under the pull of the PP rope (polypropylene rope), pull the load-bearing cable 1 into place. Guided by the wire guide mechanism 25, the load-bearing cable 1 is also positioned at the guide rail 22 / 32.

[0053] Step 3: Tension the load-bearing cable 1, tension the load-bearing cable 1 to the design tension, and then anchor it to the anchor plate 35;

[0054] Step 4: Loosen the connecting bolts 253 of the wire guide mechanism 25 on the middle beam, remove the wire guide mechanism 25, install the Z-shaped buckle 23, and install the Z-shaped buckle 33 on the end beam 6;

[0055] Step 5: Hoist the photovoltaic module 4 onto the end beam 6. Guided by the guide plate mechanism 36, it will accurately fall onto the load-bearing cable 1. After connecting the traction rope 5, it can be slid for installation.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cable system for the sliding installation of offshore photovoltaic module, comprising load-bearing cables, end beams, and multiple intermediate beams arranged in the middle of the end beams, characterized in that: The load-bearing cable is tensioned and anchored on the end beam. The middle beam and end beam are equipped with a guide rail type fixing structure that allows the photovoltaic module to slide continuously. The guide rail type fixing structure includes a base plate, a guide rail, a Z-shaped buckle and bolts. The base plate is fixed on the middle beam or end beam, and the guide rail is fixed on the base plate. The guide rail is arc-shaped, and its arc surface has a semi-circular guide groove with the same diameter as the load-bearing cable. The two sides of the guide rail have slots. The load-bearing cable is fixed in the guide groove and fixed to the base plate by the Z-shaped buckle and bolts at the slot position. The upper part of the Z-shaped buckle is not exposed at the slot position.

2. The cable system for sliding installation of offshore photovoltaic module according to claim 1, characterized in that: The central beam is equipped with a wire guide mechanism to guide the traction rope. The wire guide mechanism includes a guide plate and a guide rod. The guide plate is made of flat steel bent into shape and is fixed to the base plate with connecting bolts. Its upper end is inclined outward. The guide rod is made of smooth round steel and its lower end is fixed to the guide plate and sharpened. After the wire is laid out, the wire guide mechanism is removed and the guide rail type embedded structure is installed.

3. The cable system for sliding installation of offshore photovoltaic module according to claim 2, characterized in that: The traction rope is made of one of the following: steel strand, steel wire rope, or nylon thread.

4. The cable system for sliding installation of offshore photovoltaic module according to claim 1, characterized in that: The end beam is equipped with a guide plate mechanism, which includes a guide frame. The guide frame is made of flat steel bent and fixed to the outside of the base plate. The inner opening size of its bottom corresponds to the outer frame size of the photovoltaic module, and the upper part is inclined outward.

5. A method for sliding installation of offshore photovoltaic module, implemented using the cable system described in any one of claims 1-4, characterized in that: Includes the following steps: Step 1: Drive the pile, then install the middle beam and end beam. The guide rail type embedding structure on the middle beam has been fixed to the middle beam in advance, and the guide rail type embedding structure on the end beam has been fixed to the end beam in advance. At this time, the guide rail type embedding structure is in the line laying state, that is, the wire guide mechanism and the guide plate mechanism are installed, but the middle beam Z-shaped buckle and the end beam Z-shaped buckle are not installed. Step 2: Use a drone to pull a traction rope from one end beam to the other end beam. Guided by the wire guide mechanism, the traction rope is positioned on the middle beam guide rail and the end beam guide rail. Then, under the traction of the traction rope, pull a PP rope. Then, under the traction of the PP rope, pull the load-bearing cable into place. Guided by the wire guide mechanism, the load-bearing cable is also positioned on the middle beam guide rail and the end beam guide rail. Step 3: Tension the load-bearing cable, tension the load-bearing cable to the design tension, and then anchor it to the anchor plate; Step 4: Loosen the connecting bolts of the guide wire mechanism on the middle beam, remove the guide wire mechanism, install the Z-shaped buckle, and install the Z-shaped buckle on the end beam; Step 5: Hoist the photovoltaic module onto the end beam, and under the guidance of the guide plate mechanism, accurately lower it onto the load-bearing cable. After connecting the traction rope, it can be slid for installation.

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