Photovoltaic module layout structure and layout method suitable for gable roof

Abstract

The present invention discloses a photovoltaic module arrangement structure and arrangement method suitable for a gable roof, and belongs to the field of distributed roof photovoltaic technology. The present invention comprises a photovoltaic module, a plurality of pressing blocks, a plurality of pressing block support plates and purlins. The photovoltaic module is arranged vertically and horizontally, and the photovoltaic module is fixed on the purlins by the pressing blocks and the pressing block support plates. At the same time, a comprehensive channel integrating an inspection channel, a water supply pipeline and a cable trough box is arranged on the roof ridge. The present invention significantly improves the installation capacity per unit area of ​​the roof, increases the project benefits, realizes the quick installation of vertical and horizontal arrangements, and facilitates the inspection and maintenance of the roof photovoltaic module.

Description

Technical Field

[0001] The present invention belongs to the technical field of distributed rooftop photovoltaics, and in particular relates to a photovoltaic assembly arrangement structure and an arrangement method suitable for a gable roof. Background Art

[0002] Distributed photovoltaic power generation projects usually install solar photovoltaic modules on the roofs of industrial buildings or civil buildings. In the design of distributed photovoltaic projects, in addition to the array layout design of photovoltaic modules on the roof, it is also necessary to design AC and DC cable channels for cable layout, design maintenance channels for maintenance during the project operation and maintenance period, and design water supply pipes for cleaning photovoltaic modules. The industry uses the installation capacity per unit area (the ratio of the installation capacity of the photovoltaic power generation system to the roof area) to evaluate the utilization rate of the roof. The larger the installation capacity per unit area of ​​the distributed photovoltaic project, the higher the utilization rate of the roof, and the greater the investment return of the project. Therefore, there is an urgent need for a photovoltaic module layout structure and layout method that can increase the installation capacity per unit area and improve the utilization rate of the roof. Summary of the invention

[0003] The present invention aims to solve the technical problems existing in the prior art, meet the necessary functional requirements of photovoltaic roofs, provide more roof area for installing photovoltaic modules, and increase the investment returns of the project by increasing the installation capacity per unit area of ​​the roof. The present invention provides a photovoltaic module layout structure and layout method suitable for gable roofs.

[0004] The present invention provides a photovoltaic assembly arrangement structure suitable for a gable roof, comprising a photovoltaic assembly, a plurality of pressing blocks, a plurality of pressing block support sheets and purlins, wherein the photovoltaic assembly comprises a plurality of horizontal photovoltaic assemblies and a plurality of vertical photovoltaic assemblies;

[0005] When arranging the components on a single-side slope, n rows of the vertical photovoltaic components are arranged vertically and one row of the horizontal photovoltaic components is arranged horizontally, and the arrangement is combined vertically and horizontally;

[0006] Pressing the edge of the horizontal photovoltaic assembly and / or the vertical photovoltaic assembly by the pressing block;

[0007] Arrange purlins below the vertical photovoltaic assembly and below the two long sides of the horizontal photovoltaic assembly;

[0008] The pressing block and the pressing block support are used in cooperation and fixed on the purlin;

[0009] A comprehensive passage integrating maintenance passage, water supply pipeline and cable trough box is set on the ridge of the gable roof.

[0010] Preferably, the pressing block includes a middle pressing block and an edge pressing block, and the pressing block supporting sheet includes a middle pressing block supporting sheet and an edge pressing block supporting sheet, the middle pressing block is used in conjunction with the middle pressing block supporting sheet, and the edge pressing block is used in conjunction with the edge pressing block supporting sheet, the middle pressing block is arranged at the junction of the horizontal photovoltaic component and the vertical photovoltaic component to press the first long side of the horizontal photovoltaic component and the short side of the vertical photovoltaic component, and the edge pressing block presses the second long side of the horizontal photovoltaic component.

[0011] Preferably, the middle pressure block support is arranged above the purlin and below the junction of the horizontal photovoltaic assembly and the vertical photovoltaic assembly, and extends to below the first long side of the horizontal photovoltaic assembly and below the short side of the vertical photovoltaic assembly. The middle pressure block is arranged above the junction of the horizontal photovoltaic assembly and the vertical photovoltaic assembly, and the middle pressure block support is connected and fixed to the middle pressure block by fasteners.

[0012] Preferably, the middle pressure block is in an inverted "X" shape, including a bottom, a top and a groove; the middle pressure block support plate includes a first bottom plate and two first limit plates, and the first limit plates are perpendicular to the first bottom plate; the outer diameter of the groove is the same as the outer diameter of the two first limit plates; a matching first fixing hole is provided in the center of the groove and the bottom plate.

[0013] Preferably, the edge pressure block support is arranged below the second long side of the horizontal photovoltaic component and extends out of the second long side, the edge pressure block is arranged above the second long side of the horizontal photovoltaic component and presses the second long side, and the edge pressure block support and the edge pressure block are provided with matching fixing holes and are connected and fixed by fasteners.

[0014] Preferably, the edge pressing block is stepped, including a first step and a second step, the edge pressing block supporting plate includes a second bottom plate and a second limiting plate, the second limiting plate is perpendicular to the second bottom plate, matching second fixing holes are provided on the second step of the edge pressing block and on the second bottom plate, and the first step is higher than the second step.

[0015] Preferably, a plurality of the lateral photovoltaic modules are continuously and closely arranged starting from one end at a set installation spacing, and unusable roof space is concentrated at the other end as maintenance space and a maintenance passage is provided.

[0016] Preferably, the vertical distance from the photovoltaic assembly to the roof is calculated based on the height of the photovoltaic support.

[0017] The present invention provides a method for arranging any of the above photovoltaic assembly arrangement structures applicable to a gable roof, comprising the following steps:

[0018] Analyze and calculate the available width of the roof slope;

[0019] Determine the basic parameters of rooftop photovoltaic installation: determine the model and specifications of the photovoltaic modules, the installation height of the photovoltaic modules from the roof, the installation angle of the photovoltaic modules, the installation spacing between photovoltaic modules, the specifications of the pressing blocks, the basic dimensions of the maintenance channel and the cable trough box, and determine the space required for the installation of the roof ridge integrated channel according to the electrical parameters of the photovoltaic modules and the application environment;

[0020] Determine the arrangement plan of PV modules: According to the basic parameters of rooftop PV installation, after reserving the space for the integrated channel on the ridge, determine to fully arrange n rows of vertical PV modules from high to low vertically, until the n+1th row of vertical PV modules cannot be arranged vertically, and the remaining space is larger than the width of the PV modules, then arrange the n+1th row of horizontal PV modules horizontally;

[0021] Set purlins according to the photovoltaic module arrangement plan: set purlins under the preset installation points of all vertical photovoltaic modules, and set purlins under the metal frames in the long side direction of the horizontal photovoltaic modules;

[0022] Installing rooftop photovoltaic modules: first install the vertical photovoltaic modules arranged vertically by pressing blocks according to the set installation spacing between photovoltaic modules, and then install the horizontal photovoltaic modules arranged horizontally;

[0023] Install the roof ridge integrated channel: in the reserved roof ridge integrated channel installation space, install the maintenance channel bracket, cable trough box, water supply pipe, and safety rope hanging point respectively, and install the channel cover after the cable laying is completed.

[0024] Preferably, the lateral photovoltaic components are continuously and closely arranged laterally starting from one end according to a determined installation spacing;

[0025] Preferably, the installation sequence of the transverse photovoltaic modules arranged transversely is: positioning and installing the middle pressing block support, placing the transverse photovoltaic modules, positioning and installing the edge pressing block support and the edge pressing blocks, and installing the middle pressing blocks.

[0026] Preferably, the roof needs to meet the slope length requirement of b+50mm≤R<a;

[0027] Among them, R=B-(n×a+Σd)-(E / 2-h×sinα) / cosα;

[0028] The remaining space after installing vertical photovoltaic modules and integrated channels on the single-side slope of the R roof;

[0029] B is the available width of the slope on one side after deducting the unusable space;

[0030] n is the number of vertically arranged PV panels;

[0031] a is the length of the vertical PV module;

[0032] b is the width of the vertical PV module;

[0033] d is the installation distance between vertical photovoltaic modules;

[0034] α is the component installation inclination angle;

[0035] (E / 2-h×sinα) / cosα is the space for installing a comprehensive passage on the single-side slope of the gable roof;

[0036] E is the width of the integrated channel;

[0037] h is the vertical distance from the rooftop photovoltaic module to the roof.

[0038] Compared with the prior art, the beneficial effects of the present invention are:

[0039] 1. The present invention innovatively proposes a method of combining vertical and horizontal arrangement of photovoltaic components, which provides a new idea for the design of the plane layout of distributed photovoltaic power generation projects, can significantly increase the proportion of roof component use area, reduce the unused area of ​​the roof, and significantly increase the installation capacity per unit area of ​​the roof.

[0040] 2. The present invention proposes a design concept of combining the horizontal arrangement of photovoltaic modules with maintenance space, which concentrates scattered unused spaces as maintenance passages and reduces the unused area of ​​the roof.

[0041] 3. The present invention proposes a roof ridge integrated channel that integrates maintenance channels, water supply pipes, and cable troughs. While meeting the project design elements, it significantly reduces the use area of ​​the roof maintenance channels and cable troughs, provides more roof area for component layout, and increases the installation capacity per unit area of ​​the roof. At the same time, the maintenance channel is made of cover plates that are easy to disassemble and assemble, and the maintenance of photovoltaic modules, cleaning of photovoltaic modules, and daily monitoring of cables can be achieved in one channel, which is very convenient for the maintenance and maintenance of roof photovoltaics.

[0042] 4. The present invention provides a new installation scheme for the vertical and horizontal joints of photovoltaic modules. By slightly increasing the amount of purlins, the vertical and horizontal joint arrangement of photovoltaic modules can be realized.

[0043] 5. The present invention proposes to add a pressing block support to fix the pressing block, so that the fixation of the photovoltaic module and the purlin is more efficient, and the contact area between the purlin and the photovoltaic module at the connection of the pressing block is expanded. While unifying the purlin specifications of the project, the installation of the vertical and horizontal joints of the photovoltaic module is convenient and efficient, and the construction cost increased by the vertical and horizontal combination of the photovoltaic module is effectively controlled. The vertical and horizontal combination arrangement of photovoltaic modules is not only suitable for gable roofs, but also for straight-slope roofs. The installation scheme of realizing the vertical and horizontal combination of photovoltaic modules using pressing block supports is applicable to all projects that use pressing blocks to install and fix the modules on the purlins.

[0044] 6. The vertical and horizontal arrangement structure of the photovoltaic modules of the present invention increases the installation capacity per unit area of ​​the roof, which means that more photovoltaic modules can be installed under the same roof rent, thereby reducing the unit watt investment cost of the project, and can also produce more electricity to increase the power generation efficiency of the project. The ridge integrated channel integrates the maintenance channel, water supply pipeline, and cable trough box into one, which saves more labor and materials than installing each functional part separately, further reducing the investment cost.

[0045] 7. The vertical and horizontal combined structural system of the photovoltaic components of the present invention realizes the compatibility and unification of the horizontal component support system and the vertical photovoltaic component support system. The use of the pressure block support makes the installation of the vertical and horizontal combined parts of the photovoltaic components convenient and efficient, and the construction process is as simple and convenient as the more conventional roof photovoltaic layout structure.

[0046] 8. The concept of vertical and horizontal combination of photovoltaic modules of the present invention can be promoted not only in concrete roof photovoltaic projects, but also in steel structure roof photovoltaic projects, and in photovoltaic sun shed projects that do not require waterproofing. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic diagram of the vertical and horizontal arrangement of photovoltaic modules according to an embodiment of the present invention;

[0048] Figure 2 A schematic side view of a slope surface of photovoltaic modules arranged vertically and horizontally according to an embodiment of the present invention;

[0049] Figure 3 This is a partial schematic diagram of a purlin arranged under the long side of a lateral photovoltaic assembly according to an embodiment of the present invention;

[0050] Figure 4 It is a partial schematic diagram of a middle pressing block and an edge pressing block pressing the long sides of a lateral photovoltaic module respectively according to an embodiment of the present invention;

[0051] Figure 5 It is a three-dimensional schematic diagram of a middle pressing block support sheet according to an embodiment of the present invention;

[0052] Figure 6 It is a front view schematic diagram of a middle pressing block support sheet of an embodiment of the present invention;

[0053] Figure 7 A three-dimensional schematic diagram of an edge pressing block support sheet according to an embodiment of the present invention;

[0054] Figure 8 It is a schematic front view of an edge pressing block support sheet according to an embodiment of the present invention;

[0055] Fig. 9 It is a three-dimensional schematic diagram of the installation of the middle pressing block supporting piece and the middle pressing block according to one embodiment of the present invention;

[0056] Fig.10 It is a schematic side view of the installation of the middle pressing block supporting piece and the middle pressing block according to one embodiment of the present invention;

[0057] Fig.11 It is a three-dimensional schematic diagram of the installation of the edge pressing block supporting piece and the edge pressing block according to an embodiment of the present invention;

[0058] Fig.12 A schematic side view of a roof integrated channel according to an embodiment of the present invention;

[0059] Fig.13 A schematic diagram of a safety rope hanging point according to an embodiment of the present invention;

[0060] Fig.14 A schematic top view of a photovoltaic arrangement on a rooftop is shown in a photovoltaic module arrangement scheme according to an embodiment of the present invention, wherein maintenance passages are provided at the ridge and the side edge of the roof;

[0061] In the figure: 1. Vertical photovoltaic module; 2. Horizontal photovoltaic module; 3. Middle pressure block; 4. Edge pressure block; 5. Middle pressure block support; 6. Edge pressure block support; 7. Purlin; 8. Connecting bolts; 9. Channel cover; 10. Water supply pipe; 11. Cable trough box; 12. Safety rope hanging point; 13. First limit plate; 14. Second limit plate; 15. Maintenance channel bracket; 16. Maintenance channel; 17. First bottom plate; 18. Second bottom plate. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] The present invention provides a photovoltaic assembly arrangement structure suitable for a gable roof, comprising a photovoltaic assembly, a plurality of pressing blocks, a plurality of pressing block support sheets and a purlin 7, wherein the photovoltaic assembly comprises a plurality of horizontal photovoltaic assemblies 2 and a plurality of vertical photovoltaic assemblies 1;

[0064] When arranging the components on a single-side slope, n rows of the vertical photovoltaic components 1 are arranged vertically and 1 row of the horizontal photovoltaic components 2 are arranged horizontally, and the arrangement is combined vertically and horizontally;

[0065] The edges of the horizontal photovoltaic assembly 2 and / or the vertical photovoltaic assembly 1 are pressed by the pressing block;

[0066] Purlins 7 are arranged below the vertical photovoltaic assembly 1 and below the two long sides of the horizontal photovoltaic assembly 2;

[0067] The pressing block and the pressing block support are used in conjunction with each other and fixed on the purlin 7;

[0068] A comprehensive passage integrating a maintenance passage 16, a water supply pipeline 10, and a cable trough box 11 is arranged on the ridge of the gable roof.

[0069] In some embodiments of the present invention, the pressing block includes a middle pressing block 3 and an edge pressing block 4, and the pressing block support includes a middle pressing block support 5 and an edge pressing block support 6. The middle pressing block 3 is used in conjunction with the middle pressing block support 5, and the edge pressing block 4 is used in conjunction with the edge pressing block support 6. The middle pressing block 3 is arranged at the junction of the horizontal photovoltaic component 2 and the vertical photovoltaic component 1 to press the first long side of the horizontal photovoltaic component 2 and the short side of the vertical photovoltaic component 1, and the edge pressing block 4 presses the second long side of the horizontal photovoltaic component 2.

[0070] In some embodiments of the present invention, the middle pressure block support plate 5 is arranged above the purlin 7 and below the junction of the horizontal photovoltaic component 2 and the vertical photovoltaic component 1, and extends to below the first long side of the horizontal photovoltaic component 2 and below the short side of the vertical photovoltaic component 1. The middle pressure block 3 is arranged above the junction of the horizontal photovoltaic component 2 and the vertical photovoltaic component 1, and the middle pressure block support plate 5 is connected and fixed to the middle pressure block 3 by fasteners.

[0071] In some embodiments of the present invention, the middle pressure block 3 is in an inverted "X" shape, including a bottom, a top and a groove; the middle pressure block support plate 5 includes a first bottom plate 17 and two first limit plates 13, and the first limit plates 13 are perpendicular to the first bottom plate 17; the outer diameter of the groove is the same as the outer diameter of the two first limit plates 13; and a matching first fixing hole is provided in the center of the groove and the bottom plate.

[0072] In some embodiments of the present invention, the edge pressure block support 6 is arranged below the second long side of the horizontal photovoltaic component 2 and extends out of the second long side, the edge pressure block 4 is arranged above the second long side of the horizontal photovoltaic component 2 and presses the second long side, and the edge pressure block support 6 and the edge pressure block 4 are provided with matching fixing holes and are connected and fixed by fasteners.

[0073] In some embodiments of the present invention, the edge pressing block 4 is stepped, including a first step and a second step, the edge pressing block support 6 includes a second bottom plate and a second limiting plate 14, the second limiting plate 14 is perpendicular to the second bottom plate, and matching second fixing holes are provided on the second step of the edge pressing block 4 and on the second bottom plate, and the first step is higher than the second step.

[0074] In some embodiments of the present invention, a plurality of the lateral photovoltaic modules 2 are continuously and closely arranged starting from one end at a set installation spacing, and unusable roof space is concentrated at the other end as maintenance space and a maintenance passage 16 is provided.

[0075] In some embodiments of the present invention, the vertical distance from the photovoltaic module to the roof is calculated based on the height of the photovoltaic support.

[0076] The present invention provides a method for arranging any of the above photovoltaic assembly arrangement structures applicable to a gable roof, comprising the following steps:

[0077] Analyze and calculate the available width of the roof slope;

[0078] Determine the basic parameters of rooftop photovoltaic installation: determine the model and specifications of the photovoltaic modules, the installation height of the photovoltaic modules from the roof, the installation angle of the photovoltaic modules, the installation spacing between the photovoltaic modules, the specifications of the pressing blocks, the basic dimensions of the maintenance channel 16 and the cable trough box 11, and determine the space required for the installation of the roof ridge integrated channel according to the electrical parameters of the photovoltaic modules and the application environment;

[0079] Determine the photovoltaic module arrangement plan: According to the determined basic parameters of the roof photovoltaic installation, after reserving the space for the integrated channel on the ridge, determine to vertically distribute n rows of vertical photovoltaic modules 1 from high to low, until the n+1th row of vertical photovoltaic modules 1 cannot be arranged vertically, and when the remaining space is larger than the width of the photovoltaic modules, the n+1th row of horizontal photovoltaic modules 2 are arranged horizontally;

[0080] Purlins 7 are arranged according to the photovoltaic module arrangement plan: purlins 7 are arranged under the preset installation points of all vertical photovoltaic modules 1, and purlins 7 are arranged under the metal frames in the long side direction of the horizontal photovoltaic modules 2;

[0081] Installing rooftop photovoltaic modules: first install the vertical photovoltaic modules 1 arranged vertically by pressing blocks according to the set installation spacing between photovoltaic modules, and then install the horizontal photovoltaic modules 2 arranged horizontally;

[0082] Install the ridge integrated channel: in the reserved ridge integrated channel installation space, install the maintenance channel bracket 15, cable trough box 11, water supply pipe 10, safety rope hanging point 12 respectively, and install the channel cover 9 after the cable laying is completed.

[0083] In some embodiments of the present invention, the lateral photovoltaic components 2 are continuously and closely arranged laterally starting from one end according to a determined installation spacing;

[0084] In some embodiments of the present invention, the installation sequence of the transversely arranged transverse photovoltaic assembly 2 is: position and install the middle pressing block support 5, place the transverse photovoltaic assembly 2, position and install the edge pressing block support 6 and the edge pressing block 4, and install the middle pressing block 3.

[0085] In some embodiments of the present invention, the roof needs to meet the slope length requirement of b+50mm≤R<a;

[0086] Among them, R=B-(n×a+Σd)-(E / 2-h×sinα) / cosα;

[0087] R is the remaining space after installing vertical photovoltaic modules 1 and integrated channels on the single-side slope of the roof;

[0088] B is the available width of the slope on one side after deducting the unusable space;

[0089] n is the number of vertically arranged PV panels;

[0090] a is the length of the vertical PV module;

[0091] b is the width of the vertical PV module;

[0092] d is the installation distance between vertical photovoltaic modules;

[0093] α is the component installation inclination angle;

[0094] (E / 2-h×sinα) / cosα is the space for installing a comprehensive passage on the single-side slope of the gable roof;

[0095] E is the width of the integrated channel;

[0096] h is the vertical distance from the rooftop photovoltaic module to the roof.

[0097] Example 1

[0098] According to a specific embodiment of the present invention, the photovoltaic module arrangement structure applicable to a gable roof of the present invention is described in detail below.

[0099] In a rooftop distributed photovoltaic power generation project in a certain place, photovoltaic modules are installed on the roof of a grain turnover warehouse. The roof is a concrete gable roof with a length of 49214mm. The width of the single-side slope that can be used after deducting the unusable space is B=10562mm. The module installation angle is consistent with the roof slope α=11.3°. In order to ensure good ventilation and heat dissipation function of the warehouse roof, the vertical distance between the photovoltaic module and the roof is h=600mm. The project uses P-type 550 single-glass modules (a=2278mm, b=1134mm), the installation spacing between modules is d=10mm, the installation requirement spacing of the medium pressure block is d2=20mm, the width of the maintenance channel 16 is E=400mm, and the hot-dip galvanized cable trough box 11 is 150×50mm.

[0100] Conventional arrangement scheme for rooftop photovoltaic arrangement, the single-side slope components of the gable roof are arranged vertically in 4 rows, each row can be installed with 42 components, and the gable roof is installed with a total of 42×4×2=336 components. An inspection channel 16 and a cable trough box 11 are arranged at the foot of the slope on both sides, and the inspection channels at the foot of the slope on both sides are connected by an inspection channel 16 arranged along the slope.

[0101] Verify that the length of the roof slope meets the requirements for the new layout of photovoltaic modules:

[0102] R=B-(n×a+Σd)-(E / 2-h×sinα) / cosα

[0103] =10562-(4×2278+3×10)-(400 / 2-600×sin11.3°) / cos11.3°=1315.9mm

[0104] 1134(b)+50=1184mm≤1315.9mm(R)<2278mm(a), which meets the requirements.

[0105] The photovoltaic module arrangement scheme of the present invention is shown in the roof photovoltaic arrangement Fig.14 , the single-side slope components of the gable roof are arranged in 4 rows vertically and 1 row horizontally, each vertical row can be installed with 42 components, each horizontal row can be installed with 21 components, and the total installation of the gable roof is (42×4+21)×2=378 components. After completing the vertical and horizontal arrangement of the photovoltaic components on the two slopes of the gable roof, a comprehensive channel integrating the maintenance channel and the cable trough box 11 is set at the ridge, and a maintenance channel arranged along the slope is used to connect the ladder to the comprehensive channel.

[0106] The roof area usage and roof component capacity of the conventional arrangement scheme and the arrangement scheme of the present invention are compared, as shown in Table 1.

[0107] Table 1. Comparison of roof usage between conventional layout scheme and new layout scheme

[0108]

[0109] Compared with the existing arrangement scheme, the implementation of the present invention has the following effects:

[0110] 1. The vertical and horizontal combination arrangement of photovoltaic modules proposed in the present invention can significantly increase the proportion of roof module usage area, reduce the unused area of ​​the roof, and significantly increase the installation capacity per unit area of ​​the roof;

[0111] 2. The design concept of combining the horizontal arrangement of photovoltaic modules with maintenance space proposed in the present invention concentrates scattered unused spaces as maintenance passages, reducing the unused area of ​​the roof.

[0112] 3. The integrated ridge channel of the present invention, which integrates the inspection channel, water supply pipe 10 and cable trough box 11, meets the project design elements and significantly reduces the usage area ratio of the roof inspection channel and the cable trough box 11, providing more roof area for component layout and improving the installation capacity per unit area of ​​the roof.

[0113] 4. The installation scheme of the vertical and horizontal joint parts of a photovoltaic module of the present invention can realize the vertical and horizontal joint arrangement of the photovoltaic modules by slightly increasing the amount of purlins 7.

[0114] 5. The middle pressing block support piece 5 and the edge pressing block support piece 6 designed in the present invention enlarge the contact area between the purlin 7 and the assembly at the connection between the middle pressing block 3 and the edge pressing block 4, unify the specifications of the purlin 7 of the project, and make the installation of the vertical and horizontal joint parts of the photovoltaic assembly convenient and efficient, effectively controlling the construction cost increased by the vertical and horizontal joint of the photovoltaic assembly.

[0115] Example 2

[0116] According to a specific embodiment of the present invention, the arrangement method of the photovoltaic module arrangement structure applicable to the gable roof of the present invention is described in detail below.

[0117] The present invention provides a method for arranging a photovoltaic module arrangement structure suitable for a gable roof, comprising the following steps:

[0118] 1. Analyze and calculate the available width of the slope. Survey the site and analyze the roof structure, deduct the unusable range such as slope obstacles, increase the overhang distance of the photovoltaic modules extending from the roof edge, and calculate the available width of the roof slope.

[0119] 2. Determine the basic parameters of rooftop photovoltaic installation. Collect basic information, determine the specifications and dimensions of photovoltaic modules, the installation height of photovoltaic modules from the roof, the installation angle of photovoltaic modules, the installation spacing between photovoltaic modules, the specifications and models of module blocks, the basic dimensions of the maintenance channel and cable trough box 11, and determine the space required for the installation of the ridge integrated channel.

[0120] 3. Determine the vertical and horizontal layout plan of the rooftop photovoltaic modules. When arranging the slope photovoltaic modules, reserve the integrated passage space on the roof ridge, and then vertically arrange n rows of photovoltaic modules from high to low until the n+1th row of photovoltaic modules cannot be arranged vertically. Arrange the n+1th row of photovoltaic modules horizontally. The photovoltaic modules arranged horizontally are arranged continuously and closely from one end according to the set installation spacing, and the unusable roof space is concentrated to the preset position as a maintenance channel.

[0121] 4. Set purlins 7 according to the photovoltaic module arrangement plan. Set purlins 7 under the best installation points of all vertical photovoltaic modules 1, and set purlins 7 under the metal frames in the long side direction of the horizontal photovoltaic modules 2. The length of the purlins 7 under the horizontal photovoltaic modules 2 only needs to meet the requirements of block installation and fixation, and does not need to extend out of the photovoltaic modules. At the same time, in order to facilitate material preparation and installation, all purlins 7 use the same specifications and models, and draw a roof purlin plan layout diagram, and then prepare and install the roof purlins 7 according to the purlin plan layout diagram.

[0122] 5. Install the rooftop photovoltaic modules. According to the set installation spacing between photovoltaic modules, first install the vertical photovoltaic modules 1 through the middle pressing block 3, and then install the horizontal photovoltaic modules 2. The installation sequence of the horizontal photovoltaic modules is: position and install the middle pressing block support 5 - place the horizontal photovoltaic module 2 - position and install the edge pressing block support 6 and the edge pressing block 4 - install the middle pressing block 3.

[0123] 6. Install the ridge integrated channel. In the reserved ridge integrated channel installation space, install the maintenance channel bracket 15, cable trough box 11, water supply pipe 10, safety rope hanging point 12 respectively, and install the channel cover plate 9 after the cable laying is completed.

[0124] The above description is only an embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement and improvement made within the application scope of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for arranging a photovoltaic module arrangement structure suitable for a gable roof, characterized in that: The steps include: Analyze and calculate the available width of the roof slope; Determine the basic parameters of rooftop photovoltaic installation: The photovoltaic module layout structure suitable for the gable roof includes photovoltaic modules, a number of pressing blocks, a number of pressing block supports and purlins, and the photovoltaic modules include a number of horizontal photovoltaic modules and a number of vertical photovoltaic modules; a comprehensive channel integrating maintenance channel, water supply pipeline and cable trough box is set on the ridge of the gable roof, and the maintenance channel is equipped with a safety rope hanging point; according to the electrical parameters and application environment of the photovoltaic modules, the model and specification of the photovoltaic modules, the installation height of the photovoltaic modules from the roof, the installation inclination angle of the photovoltaic modules, the installation spacing between the photovoltaic modules, the specification and model of the pressing blocks, the basic dimensions of the maintenance channel and the cable trough box, and the space required for the installation of the ridge comprehensive channel are determined; in, The roof must meet the slope length requirement of b+50mm≤R<a; in, R=B-(n×a+Σd)-(E / 2-h×sinα) / cosα; The remaining space after installing vertical photovoltaic modules and ridge integrated channel on the single-side slope of the R roof; B is the available width of the slope on one side after deducting the unusable space; n is the number of vertically arranged PV panels; a is the length of the vertical PV module; b is the width of the vertical PV module; d is the installation distance between vertical photovoltaic modules; α is the component installation inclination angle; The space of the roof integrated channel is: (E / 2-h×sinα) / cosα; in, E is the width of the integrated channel; h is the vertical distance from the rooftop photovoltaic module to the roof; Determine the arrangement plan of photovoltaic modules on the single slope: according to the basic parameters of roof photovoltaic installation, after reserving the space of the integrated channel on the ridge, arrange n rows of vertical photovoltaic modules vertically and 1 row of horizontal photovoltaic modules horizontally, and design the arrangement plan by combining vertical and horizontal arrangements, and determine that n rows of vertical photovoltaic modules are fully arranged vertically from high to low, until the n+1th row of vertical photovoltaic modules cannot be arranged vertically, and the remaining space is greater than the width of the photovoltaic modules, then arrange the n+1th row of horizontal photovoltaic modules horizontally; Set purlins according to the photovoltaic module arrangement plan: set purlins under the preset installation points of all vertical photovoltaic modules, and set purlins under the metal frames in the long side direction of the horizontal photovoltaic modules; Installing rooftop photovoltaic modules: first install the vertical photovoltaic modules arranged vertically by means of a pressing block according to the set installation spacing between the photovoltaic modules, and press the edges of the horizontal photovoltaic modules and / or the vertical photovoltaic modules by means of the pressing block; the pressing block and the pressing block support are used in conjunction and fixed on the purlin; and then install the horizontal photovoltaic modules arranged horizontally; Install the roof ridge integrated channel: in the reserved roof ridge integrated channel installation space, install the maintenance channel bracket, cable trough box, water supply pipe, and safety rope hanging point respectively, and install the channel cover after the cable laying is completed.

2. The method for arranging a photovoltaic module arrangement structure suitable for a gable roof according to claim 1, characterized in that: The pressing block includes a middle pressing block and an edge pressing block, and the pressing block supporting sheet includes a middle pressing block supporting sheet and an edge pressing block supporting sheet. The middle pressing block is used in conjunction with the middle pressing block supporting sheet, and the edge pressing block is used in conjunction with the edge pressing block supporting sheet. The middle pressing block is arranged at the junction of the horizontal photovoltaic component and the vertical photovoltaic component to press the first long side of the horizontal photovoltaic component and the short side of the vertical photovoltaic component, and the edge pressing block presses the second long side of the horizontal photovoltaic component.

3. The method for arranging a photovoltaic module arrangement structure suitable for a gable roof according to claim 2, characterized in that: The lateral photovoltaic components are arranged in a continuous and close manner from one end according to the determined installation spacing; The installation sequence of the horizontally arranged transverse photovoltaic modules is: position and install the middle pressing block support, place the transverse photovoltaic modules, position and install the edge pressing block support and edge pressing blocks, and install the middle pressing block.

4. The method for arranging a photovoltaic module arrangement structure suitable for a gable roof according to claim 2, characterized in that: The middle pressure block support is arranged above the purlin and below the junction of the horizontal photovoltaic assembly and the vertical photovoltaic assembly, and extends to below the first long side of the horizontal photovoltaic assembly and below the short side of the vertical photovoltaic assembly. The middle pressure block is arranged above the junction of the horizontal photovoltaic assembly and the vertical photovoltaic assembly, and the middle pressure block support is connected and fixed to the middle pressure block by fasteners.

5. The method for arranging a photovoltaic assembly arrangement structure suitable for a gable roof according to claim 2, characterized in that: The middle pressure block is in the shape of an inverted "X", including a bottom, a top and a groove; the middle pressure block support plate includes a first bottom plate and two first limit plates, and the first limit plates are perpendicular to the first bottom plate; the outer diameter of the groove is the same as the outer diameter of the two first limit plates; a matching first fixing hole is provided in the center of the groove and the bottom plate.

6. The method for arranging a photovoltaic module arrangement structure suitable for a gable roof according to claim 2, characterized in that: The edge pressing block supporting piece is arranged below the second long side of the horizontal photovoltaic component and extends out of the second long side, the edge pressing block is arranged above the second long side of the horizontal photovoltaic component and presses the second long side, and the edge pressing block supporting piece and the edge pressing block are provided with matching fixing holes and are connected and fixed by fasteners.

7. The method for arranging a photovoltaic assembly arrangement structure suitable for a gable roof according to claim 2, characterized in that: The edge pressing block is stepped, including a first step and a second step. The edge pressing block supporting plate includes a second bottom plate and a second limiting plate. The second limiting plate is perpendicular to the second bottom plate. Matching second fixing holes are provided on the second step of the edge pressing block and on the second bottom plate. The first step is higher than the second step.

8. The method for arranging a photovoltaic module arrangement structure suitable for a gable roof according to any one of claims 1 to 2, characterized in that: A plurality of the lateral photovoltaic modules are continuously and closely arranged starting from one end at a set installation spacing, and unusable roof space is concentrated at the other end as maintenance space and a maintenance passage is set.

9. The method for arranging a photovoltaic module arrangement structure suitable for a gable roof according to any one of claims 1 to 2, characterized in that: The vertical distance from the photovoltaic module to the roof is calculated based on the height of the photovoltaic support.

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