Gas station photovoltaic awning and modular installation method thereof

Abstract

The invention discloses a gas station photovoltaic awning and a modular installation method thereof.The gas station photovoltaic awning is of a structure with the middle hunching up and the two sides inclining downwards, and two symmetrical solar photovoltaic panel slopes inclining downwards are formed; a shed roof edge enclosure structure is arranged on the peripheries of the two symmetrical inclined downward solar photovoltaic panel slope surfaces, and the top surface of the shed roof edge enclosure is flush with the two solar photovoltaic panel slope surfaces, so that the peripheries of the solar photovoltaic panel slope surfaces are closed, and the influence of wind power is avoided; a drainage groove and a water leakage hole are formed in the edge of the shed roof, and a drainage collecting pipeline is connected below the water leakage hole. The slope surface of the solar photovoltaic panel adopts a stepped laminated structure, so that the connection strength between two rows of solar photovoltaic panel arrays which are adjacent up and down is effectively ensured, and gaps at the joint are effectively reduced. The solar photovoltaic panel slope surface is constructed in a modular assembly mode, so that the construction efficiency is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic canopy technology, and particularly relates to a photovoltaic canopy for a gas station and its modular installation method. Background Technology

[0002] Gas stations are a widely distributed building type, and their rooftops have a large area that current technologies fail to fully utilize, resulting in wasted resources. The structural characteristics of gas stations make them an excellent resource for installing solar photovoltaic power generation systems. Integrating solar photovoltaic panels with gas station buildings would not only meet the daily electricity needs of gas stations but also allow each gas station to become a grid-connected photovoltaic power station.

[0003] The existing photovoltaic canopy technology for gas stations has the following technical problems: 1. Existing solar canopies at gas stations typically involve simply laying solar photovoltaic panels on top of the gas station. For example, mounting frames are installed on the gas station roof to support the solar panels, leaving a significant unsupported space at the bottom of the panels (i.e., the solar panels are supported by the frames to a certain height). This construction method makes it difficult to integrate the solar panel canopy with the gas station as a whole, resulting in unstable installation of the solar panels. In extreme weather conditions such as strong winds and heavy rains, the solar panel canopy may collapse. Furthermore, during the rainy season, water accumulation is prone to occur on the roof of the gas station.

[0004] 2. Existing photovoltaic canopies at gas stations are typically sloping structures, which limits the coverage area. Increasing the coverage depth would require raising the slope, resulting in wasted vertical space.

[0005] 3. Existing photovoltaic canopies at gas stations typically use a flat-laying method for solar photovoltaic panels. This flat-laying method inevitably creates gaps between adjacent solar photovoltaic panels, leading to water leakage problems. Furthermore, the connection strength between solar photovoltaic panels needs to be improved in this flat-laying method.

[0006] 4. The existing photovoltaic canopy of gas stations requires the construction of a supporting steel beam frame first, then the horizontal and vertical purlins to form a supporting grid frame, and then the solar photovoltaic panels to be laid one by one on the supporting grid frame. This construction method is inefficient. Summary of the Invention

[0007] The purpose of this invention is to address the technical deficiencies in the existing technology by providing a photovoltaic canopy for gas stations and its modular installation method.

[0008] The technical solution adopted to achieve the purpose of this application is: This invention provides a photovoltaic canopy for a gas station, comprising a bottom supporting column, a roof supporting steel beam frame, a roof perimeter, and a solar photovoltaic panel slope. The roof support steel beam frame is fixedly installed on the bottom support columns, and the roof perimeter is fixedly installed on the roof support steel beam frame to form a ring structure. Two downward-sloping solar photovoltaic panels are symmetrically arranged on the roof support steel beam frame. The intersection of these two solar photovoltaic panel slopes forms a ridge, and a cover plate is installed at the ridge. Drainage grooves are provided on the upper surface of the roof perimeter corresponding to the lower side of the two solar photovoltaic panel slopes. Water leakage holes are provided in the drainage grooves, and drainage collection pipes are connected below the water leakage holes. The top surface of the roof perimeter is flush with the two solar photovoltaic panel slopes. Each solar photovoltaic panel slope includes N rows of solar photovoltaic panel arrays arranged from top to bottom along the inclined direction. Each row of solar photovoltaic panel arrays includes multiple solar photovoltaic panels, and a pressure strip is provided between two adjacent solar photovoltaic panels in each row of solar photovoltaic panel arrays. Two adjacent rows of solar photovoltaic panel arrays are connected by a stepped stacking structure. This stepped stacking structure includes transverse support purlins and transverse stepped purlins. The transverse support purlins are fixed to longitudinal purlins, which are installed on the roof support steel beam frame. The transverse stepped purlins are fixedly installed on the transverse support purlins, and the cross-section of the transverse stepped purlins is [not specified]. The structure includes a lower vertical section, a middle horizontal section, and an upper vertical section. The lower end of the upper row of solar photovoltaic panel arrays is fixedly installed on the upper surface of the middle horizontal section and the inner wall of the upper vertical section. The upper end of the lower row of solar photovoltaic panel arrays is fixedly installed between the lower surface of the middle horizontal section, the inner wall of the lower vertical section, and the top surface of the horizontal support purlin. The top of the pressure strip on the lower row of solar photovoltaic panel arrays is pressed against the lower surface of the middle horizontal section.

[0009] In the above technical solution, the drainage ditch is U-shaped.

[0010] In the above technical solution, the number of drainage holes is the same as the number of bottom support columns, and they are located on the outer side of the bottom support columns. The drainage collection pipe is set along the bottom support columns and fixed to the bottom support columns by clamps.

[0011] In the above technical solution, the four corners of the roof edge are rounded corner structures, and correspondingly, glass panels with a color similar to that of solar photovoltaic panels are installed on the panel positions inside the rounded corner structures.

[0012] In the above technical solution, the roof support steel beam frame includes two top horizontal beams and three top vertical beams, which are welded together to form an integral structure; each top vertical beam is formed by connecting two inclined sub-vertical beam segments, with the inclination direction being downward from the middle to both sides.

[0013] In the above technical solution, a groove is provided on the inner side of the upper surface of the middle horizontal section of the horizontal stepped purlin. Since the horizontal stepped purlin itself is inclined downward with the slope, even if rain leaks from the gap between the end face of the upper row of solar photovoltaic panels and the upper vertical section of the horizontal stepped purlin, the rainwater will leak into the groove and be discharged to both sides along the groove.

[0014] In the above technical solution, the solar photovoltaic panel slope is constructed in a modular assembly form, that is, the solar photovoltaic panel slope is assembled from multiple photovoltaic roof module units. Each photovoltaic roof module unit is an integrated structure, which allows for convenient hoisting of a single photovoltaic roof module unit. Furthermore, multiple solar photovoltaic panels can be integrated on a single photovoltaic roof module unit, thereby enabling the installation of multiple solar photovoltaic panels in a single hoisting operation.

[0015] In the above technical solution, a single photovoltaic roof module unit includes: longitudinal support purlins, transverse support purlins, transverse stepped purlins, and solar photovoltaic panels. The longitudinal support purlins serve as the bottom support foundation for the entire photovoltaic roof module unit, and the transverse support purlins are fixedly installed on the longitudinal support purlins. Each photovoltaic roof module unit includes at least two longitudinal support purlins and two transverse support purlins, forming a support frame. M solar photovoltaic panels are installed in a row on the transverse support purlins, and pressure strips are installed between adjacent solar photovoltaic panels. One of the horizontal support purlins in the photovoltaic roof module unit is located below one end of the solar photovoltaic panel, and a horizontal stepped purlin is fixedly installed on top of the horizontal support purlin. The other horizontal support purlin in the photovoltaic roof module unit provides support and connection for the solar photovoltaic panel. This horizontal support purlin is located near the other end of the solar photovoltaic panel, so that the other end of the solar photovoltaic panel is exposed. This end can be spliced ​​to the upper surface of the middle horizontal section and the inner wall of the upper vertical section of the horizontal stepped purlin of another photovoltaic roof module unit.

[0016] In the above technical solution, when two photovoltaic roof module units are spliced ​​together, their longitudinal support purlins, transverse support purlins, and transverse stepped purlins are all connected by plug-in and bolt connection.

[0017] This invention also provides a modular installation method for a photovoltaic canopy at a gas station, comprising the following steps: Step 1: Install the bottom support column, ensuring that the bottom support column is stably erected on the ground foundation; Step 2: Install the roof support steel beam frame on the bottom support columns; Step 3: Install the roof perimeter around the outer edge of the supporting steel beam frame; Step 4: Install photovoltaic roof module units on the supporting steel beam frame of the roof to form a solar photovoltaic panel slope; install a cover plate at the ridge between two solar photovoltaic panel slopes; install glass plates of similar color to the solar photovoltaic panels at the panel positions on the inner side of the four rounded corner structures of the roof edge. Step 5: Connect a drainage collection pipe below each drainage hole on the edge of the roof. The drainage collection pipe is set along the bottom support column and fixed to the bottom support column with clamps.

[0018] The beneficial effects of this invention are as follows: The photovoltaic canopy for gas stations of this invention achieves an integrated and organic combination of solar photovoltaic panels and gas station buildings. The structure is simple and stable, which not only meets the daily power needs of gas stations, but also enables each gas station to become a grid-connected photovoltaic power station.

[0019] The photovoltaic canopy for gas stations of this invention adopts a structure with an arched center and downward-sloping sides, forming two symmetrical downward-sloping solar photovoltaic panel slopes. Compared with a single-slope design, this increases the coverage depth of the canopy without increasing its height. Furthermore, a canopy perimeter structure is provided around these two symmetrical downward-sloping solar photovoltaic panel slopes, with the top surface of the perimeter flush with the two solar photovoltaic panel slopes. This effectively encloses the solar photovoltaic panel slopes, preventing them from being affected by wind.

[0020] The photovoltaic canopy of the gas station of the present invention has drainage grooves on the upper surface of the canopy edge corresponding to the lower side of the slope of the two solar photovoltaic panels, so that rainwater flows down the slope of the solar photovoltaic panels into the drainage grooves; a water leakage hole is provided in the drainage groove, and a drainage collection pipe is connected below the water leakage hole, so that the water in the drainage groove is discharged downward through the water leakage hole and the drainage collection pipe.

[0021] The solar photovoltaic canopy of the gas station of this invention adopts a stepped stacked structure for the slope of the solar photovoltaic panels (i.e., the two adjacent rows of solar photovoltaic panel arrays are connected by a stepped stacked structure). This stepped stacked structure effectively ensures the connection strength between the two adjacent rows of solar photovoltaic panel arrays and effectively reduces the gaps at the connection. In particular, the middle horizontal section effectively blocks the seams between the lower row of solar photovoltaic panels, preventing rain leakage. Moreover, a groove is provided on the inner side of the upper surface of the middle horizontal section of the horizontal stepped purlin. Since the horizontal stepped purlin itself is inclined downward with the slope, even if rain leaks between the end face of the upper row of solar photovoltaic panels and the upper vertical section of the horizontal stepped purlin, the rainwater will leak into the groove and drain out to both sides along the groove.

[0022] The solar photovoltaic panel slope of the gas station photovoltaic canopy of the present invention is constructed in a modular assembly form, that is, the solar photovoltaic panel slope is assembled from multiple photovoltaic canopy roof module units. Each photovoltaic canopy roof module unit is an integrated structure, which allows for convenient hoisting of individual photovoltaic canopy roof module units. Furthermore, multiple solar photovoltaic panels can be integrated on a single photovoltaic canopy roof module unit, thereby enabling the installation of multiple solar photovoltaic panels in a single hoisting operation. This modular installation method greatly improves construction efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the photovoltaic canopy for gas stations according to the present invention.

[0025] Figure 2 This is a top view of the photovoltaic canopy of the gas station according to the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of the roof support steel beam frame of the present invention.

[0027] Figure 4 This is a partial cross-sectional structural diagram of the solar photovoltaic panel slope of the photovoltaic canopy of the gas station according to the present invention.

[0028] Figure 5 This is a partial enlarged view of the stepped stacked structure of the present invention.

[0029] Figure 6 This is a structural diagram of a single photovoltaic roof module unit.

[0030] Figure 7 This is a schematic diagram of the structure after multiple photovoltaic roof module units are spliced ​​together.

[0031] Figure 8 A schematic diagram of the purlin connection structure when splicing two photovoltaic roof module units. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below with reference to specific embodiments. Example 1

[0033] This embodiment provides a photovoltaic canopy for a gas station. As shown in the attached drawings, it includes a bottom support column 1, a roof support steel beam frame 2, a roof edge 3, and a solar photovoltaic panel slope 4.

[0034] The roof support steel beam frame 2 is fixedly installed on the bottom support column 1 (i.e., the roof support steel beam frame 2 is supported by the bottom support column 1). The roof edge 3 is fixedly installed on the outer perimeter of the roof support steel beam frame 2, forming a ring enclosure structure. Two downward inclined solar photovoltaic panel slopes 4 are symmetrically arranged on the roof support steel beam frame 2. Preferably, the slope angle (inclination angle) of each solar photovoltaic panel slope 4 is 10°. The intersection between the two solar photovoltaic panel slopes 4 forms a ridge, thus forming a herringbone photovoltaic roof. A cover plate 5 is installed at the ridge. The cover plate 5 plays a role in rainproofing, dustproofing and protection of the intersection between the two solar photovoltaic panel slopes 4.

[0035] Drainage channels 30 are provided on the upper surface of the roof perimeter 3 corresponding to the lower side of the two solar photovoltaic panel slopes 4. Preferably, the drainage channels 30 are U-shaped, allowing rainwater to flow down the solar photovoltaic panel slopes 4 into the drainage channels 30. Drainage holes 31 are provided in the drainage channels 30, the number of which is the same as the number of bottom support columns 1, and are located on the outer side of the bottom support columns 1. Each drainage hole 31 is connected to a drainage collection pipe 6, thereby draining the water in the drainage channels 30 downwards through the drainage holes 31 and the drainage collection pipe 6. The drainage collection pipe 6 is installed along the bottom support columns 1 and fixed to the bottom support columns 1 by clamps.

[0036] See appendix Figure 1 The top surface of the roof edge 3 is flush with or nearly flush with the two solar photovoltaic panel slopes 4 (the front and back sides of the roof edge 3 have a structure that is arched in the middle and slopes downward on both sides, corresponding to the two solar photovoltaic panel slopes 4), thus enclosing the solar photovoltaic panel slopes 4 on all sides and preventing them from being affected by wind. Furthermore, the bottom surface of the roof edge 3 is flush to ensure a neat and aesthetically pleasing appearance.

[0037] For further details, please refer to the appendix. Figure 2 The four corners of the roof edge 3 are rounded corner structures; correspondingly, since the inner panel of the rounded corner structure is irregularly shaped, solar photovoltaic panels are not installed in this panel position (solar photovoltaic panels are rectangular, and it is difficult to make irregularly shaped solar photovoltaic panels), but glass panels 32 with a color similar to that of solar photovoltaic panels are installed in this panel position.

[0038] For further details, please refer to the appendix. Figure 3 Preferably, there are four bottom support columns 1 arranged in a rectangular array. Each bottom support column 1 has a base 11 connected to its bottom, which is fixed to the ground foundation by pre-embedded bolts, thus ensuring the four bottom support columns 1 are stably erected on the ground foundation. The roof support steel beam frame 2 includes two top horizontal beams 21 and three top vertical beams 22. The two top horizontal beams 21 and three top vertical beams 22 are welded together to form a single structure, constituting the roof support steel beam frame. The top of each bottom support column 1 is connected to the intersection of the top horizontal beams 21 and the top vertical beams 22 to ensure the support strength of the roof support steel beam frame 2. Furthermore, each top vertical beam 22 is formed by welding two inclined sub-vertical beam segments 220 together, with the inclination direction from the middle downwards towards both sides.

[0039] For further details, please refer to the appendix. Figure 1 and attached Figure 4 Each solar photovoltaic panel slope 4 includes N rows of solar photovoltaic panel arrays 40 arranged from top to bottom along the inclined direction. The number N is multiple. In this embodiment, see [reference needed]. Figure 1 The number of N is 3, that is, a single solar photovoltaic panel slope 4 includes 3 rows of solar photovoltaic panel arrays 40 arranged from top to bottom along the inclined direction. Each row of solar photovoltaic panel arrays 40 includes multiple solar photovoltaic panels 41, and a pressure strip 42 is provided between two adjacent solar photovoltaic panels 41 in each row of solar photovoltaic panel arrays 40 to cover the gap between the two solar photovoltaic panels 41, so as to play a role in dust and rain protection.

[0040] The two adjacent rows of solar photovoltaic panel arrays 40 are connected by a stepped stacking structure, see appendix. Figure 4 and attached Figure 5The stepped stacked structure comprises: transverse support purlins 71 (hereinafter, "transverse" refers to the "row direction" of the single-row solar photovoltaic panel array 40) and transverse stepped purlins 72. The transverse support purlins 71 are fixed to longitudinal purlins 73 (i.e., the longitudinal purlins 73 support the transverse support purlins 71), and the longitudinal purlins 73 are installed on the roof support steel beam frame 2. The transverse stepped purlins 72 are fixedly installed on the transverse support purlins 71, and are installed in a staggered manner, leaving a support surface on the top surface of the transverse support purlins 71 for supporting the solar photovoltaic panels. The cross-section of the transverse stepped purlins 72 is... Specifically, the structure includes a lower vertical section 721, a middle horizontal section 722, and an upper vertical section 723. The lower end of the upper row of solar photovoltaic panel array 40 is fixedly installed on the upper surface of the middle horizontal section 722 and the inner wall of the upper vertical section 723 (i.e., the upper surface of the middle horizontal section 722 supports the bottom surface of the upper row of solar photovoltaic panels, and the inner wall of the upper vertical section 723 positions the outer end face of the upper row of solar photovoltaic panels). The upper end of the lower row of solar photovoltaic panel array 40 is fixedly installed between the lower surface of the middle horizontal section 722, the inner wall of the lower vertical section 721, and the top surface of the horizontal support purlin 71. Preferably, the top end of the pressure strip 42 on the lower row of solar photovoltaic panel array 40 is pressed against the lower surface of the middle horizontal section 722. This stepped stacked structure effectively ensures the connection strength between two adjacent rows of solar photovoltaic panel arrays 40, and effectively reduces the gaps at the connection points. The middle horizontal section 722 effectively shields the seams between the lower row of solar photovoltaic panels, preventing rain leakage. Furthermore, a groove 7221 is provided on the inner side of the upper surface of the middle horizontal section 722 of the horizontal stepped purlin 72. Since the horizontal stepped purlin 72 itself is inclined downward with the slope, even if rain leaks from the gap between the end face of the upper row of solar photovoltaic panels 41 and the upper vertical section 723 of the horizontal stepped purlin 72, the rainwater will leak into the groove 7221 and drain out to both sides along the groove 7221. Example 2

[0041] Furthermore, the solar photovoltaic panel slope 4 described in Embodiment 1 is constructed using a modular assembly method, meaning that the solar photovoltaic panel slope 4 is assembled from multiple photovoltaic roof module units 100 (see Appendix). Figure 4 The rectangular dashed box in the figure can be regarded as a photovoltaic roof module unit 100. Each photovoltaic roof module unit 100 is an integrated structure, which makes it easy to hoist a single photovoltaic roof module unit 100. Furthermore, multiple solar photovoltaic panels can be integrated on a single photovoltaic roof module unit 100, thereby enabling the installation of multiple solar photovoltaic panels in one hoisting operation.

[0042] For example, see Appendix Figure 6 This document illustrates the specific structure of a photovoltaic (PV) roof module unit 100. Specifically, a single PV roof module unit 100 includes: longitudinal support purlins 73, transverse support purlins 71, transverse stepped purlins 72, and solar photovoltaic panels 41. The longitudinal support purlins 73 serve as the bottom support foundation of the entire PV roof module unit 100, and the transverse support purlins 71 are fixedly installed on the longitudinal support purlins 73. Each PV roof module unit 100 includes at least two longitudinal support purlins 73 and two transverse support purlins 71, forming a support frame. M solar photovoltaic panels 41 are arranged in a row on the transverse support purlins 71. M can be one or more (see appendix). Figure 4 As shown, for example, M is 3, and these 3 solar photovoltaic panels 3 are arranged in a row, with a strip 42 between two adjacent solar photovoltaic panels 41 to cover the gap between the two solar photovoltaic panels 41; one of the transverse support purlins 71 in the photovoltaic roof module unit 100 is located below one end of the solar photovoltaic panel 41, and a transverse stepped purlin 72 is fixedly installed on the top of the transverse support purlin 71. The structure of the transverse stepped purlin 72 has been described in detail in Embodiment 1 and will not be repeated here; another transverse support purlin in the photovoltaic roof module unit 100... The supporting purlin 71 provides support and connection for the solar photovoltaic panel 41, making the solar photovoltaic panel 41 and the entire photovoltaic roof module unit 100 an integrated structure. This horizontal supporting purlin 71 is positioned near the other end of the solar photovoltaic panel 41 (the other end refers to the opposite end of the solar photovoltaic panel where the horizontal stepped purlin 72 is installed), making the other end of the solar photovoltaic panel 41 exposed. This end can be spliced ​​to the upper surface of the middle horizontal section 722 and the inner wall of the upper vertical section 723 of the horizontal stepped purlin 72 of another photovoltaic roof module unit 100 (see Appendix). Figure 7 (This is a schematic diagram of three adjacent photovoltaic roof module units 100 spliced ​​together).

[0043] Furthermore, when two photovoltaic roof module units 100 are spliced, preferably, their longitudinal support purlins 73, transverse support purlins 71, and transverse stepped purlins 72 are all connected by a combination of plug-in and bolt connections (see Appendix). Figure 8 ). Example 3

[0044] Based on the above embodiments, the modular installation method for a gas station photovoltaic canopy designed in this invention includes the following steps: Step 1: Install the bottom support columns 1. Preferably, there are 4 bottom support columns 1. These 4 bottom support columns 1 are arranged in a rectangular array. The bottom of the bottom support column 1 is connected to the base 11. The base 11 is fixed to the ground foundation by pre-embedded bolts, so that the 4 bottom support columns 1 can be stably erected on the ground foundation.

[0045] Step 2: Install the roof support steel beam frame 2 on the bottom support column 1. The roof support steel beam frame 2 includes two top horizontal beams 21 and three top vertical beams 22. The two top horizontal beams 21 and the three top vertical beams 22 are welded together to form an integral structure, constituting the roof support steel beam frame.

[0046] Step 3: Install the roof perimeter 3 around the outer edge of the roof support steel beam frame 2.

[0047] Step 4: Install photovoltaic roof module units 100 on the supporting steel beam frame 2 of the roof to form a solar photovoltaic panel slope 4; the intersection between two solar photovoltaic panel slopes 4 forms a ridge, and a cover plate 5 is installed at the ridge. Furthermore, install glass plates 32 with a color similar to the solar photovoltaic panels at the panel positions on the inner side of the four rounded corner structures of the roof edge 3.

[0048] Step 5: Connect a drainage collection pipe 6 below each drainage hole 31 on the roof edge 3. The drainage collection pipe 6 is set along the bottom support column 1 and fixed to the bottom support column 1 by clamps.

[0049] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0050] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0051] The above description is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A photovoltaic canopy for a gas station, characterized in that: This includes the bottom support columns, the roof support steel beam frame, the roof perimeter, and the solar photovoltaic panel slope; The roof support steel beam frame is fixedly installed on the bottom support columns, and the roof perimeter is fixedly installed on the roof support steel beam frame to form a ring structure. Two downward-sloping solar photovoltaic panels are symmetrically arranged on the roof support steel beam frame. The intersection of these two solar photovoltaic panel slopes forms a ridge, and a cover plate is installed at the ridge. Drainage grooves are provided on the upper surface of the roof perimeter corresponding to the lower side of the two solar photovoltaic panel slopes. Water leakage holes are provided in the drainage grooves, and drainage collection pipes are connected below the water leakage holes. The top surface of the roof perimeter is flush with the two solar photovoltaic panel slopes. Each solar photovoltaic panel slope includes N rows of solar photovoltaic panel arrays arranged from top to bottom along the inclined direction. Each row of solar photovoltaic panel arrays includes multiple solar photovoltaic panels, and a pressure strip is provided between two adjacent solar photovoltaic panels in each row of solar photovoltaic panel arrays. Two adjacent rows of solar photovoltaic panel arrays are connected by a stepped stacking structure. This stepped stacking structure includes transverse support purlins and transverse stepped purlins. The transverse support purlins are fixed to longitudinal purlins, which are installed on the roof support steel beam frame. The transverse stepped purlins are fixedly installed on the transverse support purlins, and the cross-section of the transverse stepped purlins is [not specified]. The structure includes a lower vertical section, a middle horizontal section, and an upper vertical section. The lower end of the upper row of solar photovoltaic panel arrays is fixedly installed on the upper surface of the middle horizontal section and the inner wall of the upper vertical section. The upper end of the lower row of solar photovoltaic panel arrays is fixedly installed between the lower surface of the middle horizontal section, the inner wall of the lower vertical section, and the top surface of the horizontal support purlin. The top of the pressure strip on the lower row of solar photovoltaic panel arrays is pressed against the lower surface of the middle horizontal section.

2. The photovoltaic canopy for gas stations according to claim 1, characterized in that: The drainage ditch is U-shaped.

3. The photovoltaic canopy for gas stations according to claim 1, characterized in that: The number of drainage holes is the same as the number of bottom support columns, and they are located on the outside of the bottom support columns. The drainage collection pipe is set along the bottom support columns and fixed to the bottom support columns by clamps.

4. The photovoltaic canopy for a gas station according to claim 1, characterized in that: The four corners of the roof are rounded corner structures. Correspondingly, glass panels of similar color to the solar photovoltaic panels are installed on the panels inside the rounded corner structures.

5. The photovoltaic canopy for a gas station according to claim 1, characterized in that: The roof support steel beam frame includes two top horizontal beams and three top longitudinal beams, which are welded together to form an integral structure. Each top longitudinal beam is formed by connecting two inclined sub-longitudinal beam segments, with the inclination direction being downward from the middle to both sides.

6. The photovoltaic canopy for a gas station according to claim 1, characterized in that: A groove is provided on the inner side of the upper surface of the middle horizontal section of the horizontal stepped purlin.

7. The photovoltaic canopy for a gas station according to claim 1, characterized in that: The solar photovoltaic panel slope is assembled from multiple photovoltaic roof module units. Each photovoltaic roof module unit is an integrated structure, and multiple solar photovoltaic panels are integrated on each photovoltaic roof module unit.

8. The photovoltaic canopy for a gas station according to claim 1, characterized in that: A single photovoltaic (PV) roof module unit includes: longitudinal support purlins, transverse support purlins, transverse stepped purlins, and solar photovoltaic panels. The longitudinal support purlins serve as the bottom support foundation for the entire PV roof module unit, and the transverse support purlins are fixedly installed on the longitudinal support purlins. Each PV roof module unit includes at least two longitudinal support purlins and two transverse support purlins, forming a support frame. M solar photovoltaic panels are installed in a row on the transverse support purlins, and pressure strips are installed between adjacent solar photovoltaic panels. One of the horizontal support purlins in the block unit is located below one end of the solar photovoltaic panel, and a horizontal stepped purlin is fixedly installed on top of the horizontal support purlin; another horizontal support purlin in the photovoltaic roof module unit provides support and connection for the solar photovoltaic panel. This horizontal support purlin is located near the other end of the solar photovoltaic panel, so that the other end of the solar photovoltaic panel is exposed. This end can be spliced ​​to the upper surface of the middle horizontal section and the inner wall of the upper vertical section of the horizontal stepped purlin of another photovoltaic roof module unit.

9. The photovoltaic canopy for a gas station according to claim 1, characterized in that: When splicing two photovoltaic roof module units, the longitudinal support purlins, transverse support purlins, and transverse stepped purlins of both units are connected by a combination of plug-in and bolt connections.

10. The modular installation method for a gas station photovoltaic canopy according to claim 1, characterized in that, Includes the following steps: Step 1: Install the bottom support column, ensuring that the bottom support column is stably erected on the ground foundation; Step 2: Install the roof support steel beam frame on the bottom support columns; Step 3: Install the roof perimeter around the outer edge of the supporting steel beam frame; Step 4: Install photovoltaic roof module units on the supporting steel beam frame of the roof to form a solar photovoltaic panel slope; install a cover plate at the ridge between two solar photovoltaic panel slopes; install glass plates of similar color to the solar photovoltaic panels at the panel positions on the inner side of the four rounded corner structures of the roof edge. Step 5: Connect a drainage collection pipe below each drainage hole on the edge of the roof. The drainage collection pipe is set along the bottom support column and fixed to the bottom support column with clamps.

Images