A photovoltaic system installation structure and installation method for a steelmaking smelting plant roof

Abstract

The present application relates to the technical field of photovoltaic installation, and discloses a kind of photovoltaic system installation structure and installation method of steel smelting plant roof, including photovoltaic board and sequentially connected upper connecting assembly, damping support assembly, lower connecting assembly and roof connecting assembly;Damping support assembly adopts double ball head support pole to cooperate with the double ball head damping rod of circumferential array to form damping buffer structure, limit anti-rotation component and support spring are arranged;Upper and lower connecting assembly adopts plum blossom nut, adjustable opening and closing of clamping seat structure realizes tool-free quick assembly;Roof connecting assembly forms double waterproof by sealing rubber ring and water channel.The present application, using double ball head support pole cooperates with the double ball head damping rod of circumferential array, can absorb the sustained vibration generated by steel smelting furnace operation, while support spring can buffer vibration, limit anti-rotation component then limits the circumferential rotation of double ball head support pole, avoid photovoltaic board to occur torsion displacement, significantly improve the stability and service life of photovoltaic system in high vibration environment.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic installation technology, and in particular to a photovoltaic system installation structure and installation method for the roof of a steelmaking and smelting plant. Background Technology

[0002] Photovoltaic systems are clean energy systems that convert solar energy into electrical energy. They are mainly divided into three categories: stand-alone, grid-connected, and hybrid. Their applications cover household electricity, traffic signals, agricultural irrigation, and large-scale power plant construction. Their core principle is based on the photovoltaic effect of semiconductor materials. They do not require fuel consumption and are environmentally friendly and flexible in deployment. One of the most important pieces of equipment in a photovoltaic system is the photovoltaic panel installed on the roof. Nowadays, a large number of photovoltaic panels are installed in steelmaking and smelting plants for power generation.

[0003] However, the following problems exist when installing photovoltaic panels in existing steelmaking and smelting plant areas:

[0004] 1. Steelmaking and smelting plant areas generate high-intensity and continuous vibrations due to the continuous operation of steelmaking furnaces. Traditional photovoltaic system installation structures lack targeted anti-seismic design, and long-term vibration can easily lead to loosening of connecting parts, displacement or even damage of photovoltaic panels, affecting system stability and service life.

[0005] 2. The existing photovoltaic installations rely heavily on external tools for the assembly of the upper and lower connection components. The connection steps are cumbersome, the installation efficiency is low, and the adaptability of the upper and lower connection structures is poor. It is difficult to quickly adjust the opening and closing size to match the roof fixing base, which leads to a longer installation cycle and increases labor and time costs. This cannot meet the actual needs of rapid deployment and stable operation of photovoltaic systems in steelmaking plants. Summary of the Invention

[0006] To overcome the above deficiencies, the present invention provides a photovoltaic system installation structure and installation method for the roof of a steelmaking and smelting plant, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a photovoltaic system installation structure for the roof of a steelmaking and smelting plant, comprising a photovoltaic panel and a damping support assembly, an upper connecting assembly, a roof connecting assembly, and a lower connecting assembly installed at the bottom of the photovoltaic panel; the upper connecting assembly is disposed above the damping support assembly and fixedly connected to the photovoltaic panel, the lower connecting assembly is fixed below the damping support assembly, and the roof connecting assembly is connected to the roof and adapted to the lower connecting assembly;

[0008] The damping support assembly includes a double-ball-head support rod, a lower ball seat, an upper ball seat, and several double-ball-head damping rods. The two ends of the double-ball-head support rod are respectively movably engaged with the lower ball seat and the upper ball seat. Several double-ball-head damping rods are arranged in a circumferential array around the double-ball-head support rod to form a damping buffer structure. A limiting anti-rotation component is provided between the bottom of the double-ball-head support rod and the lower ball seat. A support spring is provided below the upper ball seat to buffer the continuous vibrations generated during the operation of the steelmaking furnace.

[0009] Furthermore, the limiting and anti-rotation component includes several limiting blocks and matching limiting grooves. The limiting blocks are arranged in a circumferential array and fixed on the inner side wall of the lower ball seat of the support rod. The limiting groove is circumferentially opened on the bottom ball head of the double ball head support rod. One end of the limiting block is embedded in the limiting groove, allowing the double ball head support rod to swing within a preset angle range and restricting its circumferential rotation.

[0010] Furthermore, the damping support assembly also includes a lower fixing cap and an upper fixing cap, the lower fixing cap being threadedly connected to the lower ball seat of the support rod, and the upper fixing cap being threadedly connected to the upper ball seat of the support rod.

[0011] Furthermore, a plurality of damping rod lower ball seats are uniformly fixedly connected to the upper surface of the lower ball seat of the support rod in a circumferential direction, and a plurality of damping rod upper ball seats are correspondingly fixedly connected to the outer side wall of the top end of the double ball head support rod. The two ends of the double ball head damping rod are respectively movably installed between the corresponding damping rod lower ball seat and damping rod upper ball seat. The lower end of the support spring is installed on the upper surface of the damping rod upper ball seat, and the upper end abuts against the lower surface of the support rod upper ball seat.

[0012] Furthermore, the upper connecting assembly includes a connecting seat and several Phillips nuts; the connecting seat is fixedly installed on the bottom of the photovoltaic panel, and several connecting bolts are fixedly connected to the bottom of the connecting seat. Several fixing holes are opened on the ball seat of the support rod. The connecting bolts pass through the fixing holes and are threadedly connected to the Phillips nuts, and the Phillips nuts are located inside the support spring.

[0013] Furthermore, the roof connection assembly includes a T-shaped fixing seat, a sealing ring, and several drainage channels; a screw hole is provided in the middle of the T-shaped fixing seat, the sealing ring is fixedly connected to the bottom of the T-shaped fixing seat and located below the screw hole, and several drainage channels are evenly distributed on the bottom of the T-shaped fixing seat.

[0014] Furthermore, the lower connecting assembly includes a fixed bracket, a movable bracket, a slide rod, and an adjusting spline screw; the fixed bracket is fixedly connected to the bottom of the lower ball seat of the support rod, one end of the fixed bracket has a sliding groove, the slide rod is fixedly connected to one end of the movable bracket and slidably connected inside the sliding groove, and the adjusting spline screw is rotatably connected to the middle of the movable bracket and threadedly connected to the fixed bracket; the inner shapes of the fixed bracket and the movable bracket are adapted to the shape of the T-shaped fixing seat.

[0015] Furthermore, the lower connecting component also includes a slot and a block. The slot is disposed on one side of the T-shaped fixing seat, and the block is fixedly connected to the inner side of the movable card seat. The block is adapted to the slot.

[0016] Furthermore, the diameter of the fixing hole matches that of the connecting bolt.

[0017] An installation method for a photovoltaic system installation structure on the roof of a steelmaking and smelting plant includes the following steps:

[0018] Step S1: Insert the T-shaped fixing bracket into the screw hole and tighten it into the preset installation position on the roof of the steelmaking and smelting plant area. This will make the sealing ring at the bottom of the T-shaped fixing bracket fit tightly against the roof under the pressure of the bolt, sealing the gap of the drilled hole. At the same time, the drainage channel at the bottom of the T-shaped fixing bracket forms a rainwater drainage channel on the roof.

[0019] Step S2: Insert the bottom ball of the double ball joint into the lower ball seat of the support rod, so that the limiting block on the inner side of the lower ball seat of the support rod is embedded in the limiting groove at the bottom of the double ball joint support rod, and tighten the lower fixing screw cap to complete the bottom movable connection; insert the top ball of the double ball joint support rod into the upper ball seat of the support rod, and tighten the upper fixing screw cap to complete the top movable connection; movably install the two ends of several double ball joint damping rods between the corresponding lower ball seat and upper ball seat of the damping rod, and install a support spring on the upper surface of the upper ball seat of the damping rod;

[0020] Step S3: Align the connector pre-fixed at the bottom of the photovoltaic panel with the ball seat on the support rod, so that the connecting bolt at the bottom of the connector passes through the fixing hole of the ball seat on the support rod and is fitted into the inside of the support spring. Tighten the nut to complete the toolless quick connection between the photovoltaic panel and the damping support assembly.

[0021] Step S4: Align the fixed bracket at the bottom of the damping support assembly with the T-shaped fixing seat on the roof. Rotate the adjusting screw to drive the moving bracket to slide along the groove, expanding the opening and closing size of the fixed bracket and the moving bracket, and then fit it into the T-shaped fixing seat. Rotate the adjusting screw in the opposite direction to tighten the moving bracket until the locking block on the inside of the moving bracket is fully engaged with the locking groove of the T-shaped fixing seat, thus completing the overall installation.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In this invention, a damping buffer structure is set up, which uses double ball-head support rods in conjunction with a circumferential array of double ball-head damping rods to absorb the continuous vibration generated by the operation of the steelmaking furnace. At the same time, the support spring can buffer the vibration, and the limiting anti-rotation component restricts the circumferential rotation of the double ball-head support rods, preventing the photovoltaic panel from tortuous displacement, which significantly improves the stability and service life of the photovoltaic system in high vibration environment.

[0024] 2. The upper connecting component of the present invention adopts a connecting bolt and a nut mating structure, and the lower connecting component adopts a fixed and movable bracket structure with adjustable opening and closing size. Both can be quickly assembled without external tools, which greatly simplifies the installation steps and improves the installation efficiency. At the same time, it can be adapted to roof fixing brackets of different sizes to meet the needs of rapid deployment of photovoltaic systems in steelmaking plants.

[0025] 3. The roof connection component of the present invention seals the gaps in the roof holes with a sealing ring and forms a rainwater drainage channel with the bottom drainage channel, which effectively solves the problem of water leakage after roof drilling and further improves the reliability and safety of the photovoltaic system. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the exploded structure of the present invention;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a structural schematic diagram of the lower connector;

[0030] Figure 5 This is a schematic diagram of the structure at the bottom of the photovoltaic panel;

[0031] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0032] Figure 7 This is a schematic diagram of the structure of the present invention assembled with a photovoltaic panel.

[0033] In the diagram: 1. Photovoltaic panel; 2. Damping support assembly; 201. Lower ball seat of support rod; 202. Upper ball seat of support rod; 203. Double ball head support rod; 204. Lower fixing screw cap; 205. Upper fixing screw cap; 206. Limiting block; 207. Limiting groove; 208. Lower ball seat of damping rod; 209. Upper ball seat of damping rod; 210. Double ball head damping rod; 211. Support spring; 3. Upper connecting assembly; 301 1. Connecting seat; 302. Connecting bolt; 303. Fixing hole; 304. Torx nut; 4. Roofing connection assembly; 401. T-shaped fixing seat; 402. Drain channel; 403. Screw hole; 404. Sealing ring; 5. Lower connection assembly; 501. Slot; 502. Fixed slot; 503. Moving slot; 504. Slide groove; 505. Slide rod; 506. Adjusting Torx head screw; 507. Locking block. Detailed Implementation

[0034] Example 1

[0035] Reference Figure 1-7 The photovoltaic system installation structure on the roof of the steelmaking and smelting plant provided in this embodiment has a core seismic resistance unit of damping support component 2, and a supporting foundation connection structure including photovoltaic panel 1, upper connection component 3, roof connection component 4 and lower connection component 5; the upper connection component 3 is set above the damping support component 2 and fixed to the photovoltaic panel 1, the lower connection component 5 is fixed below the damping support component 2, and the roof connection component 4 is fixed to the roof and adapted to the lower connection component 5;

[0036] The damping support assembly 2 includes a double ball-head support rod 203, a lower ball seat 201, an upper ball seat 202, four double ball-head damping rods 210, a lower fixing screw cap 204, an upper fixing screw cap 205, and a support spring 211. The two ends of the double ball-head support rod 203 are spherical structures, which are respectively in movable cooperation with the spherical inner cavities of the lower ball seat 201 and the upper ball seat 202 to achieve multi-directional swing within a range of ±15° and adapt to the small displacements caused by vibration.

[0037] Four double-ball head damping rods 210 are evenly arranged in a circular array around the double-ball head support rod 203. Four damping rod lower ball seats 208 are circumferentially fixed on the upper surface of the lower ball seat 201 of the support rod. Four damping rod upper ball seats 209 are correspondingly fixed on the outer side of the top of the double-ball head support rod 203. The spherical joints at both ends of the double-ball head damping rod 210 are respectively movably installed between the corresponding damping rod lower ball seat 208 and damping rod upper ball seat 209, forming a damping buffer network to absorb vibration energy and dissipate the transmission of low-frequency continuous vibration of the steelmaking furnace.

[0038] A limiting and anti-rotation component is provided between the bottom of the double ball head support rod 203 and the lower ball seat 201 of the support rod. The limiting and anti-rotation component includes four circumferentially arrayed limiting blocks 206 and four matching limiting grooves 207. The limiting blocks 206 are fixed to the inner side wall of the lower ball seat 201 of the support rod, and the limiting grooves 207 are circumferentially opened on the bottom ball head of the double ball head support rod 203. One end of the limiting block 206 is embedded in the limiting groove 207. This structure allows the double ball head support rod 203 to swing and buffer within a preset angle range, while restricting its circumferential rotation to prevent the photovoltaic panel 1 from being twisted and displaced due to vibration.

[0039] A support spring 211 is installed below the ball seat 202 on the support rod. The support spring 211 is sleeved on the outside of the connecting bolt 302. Its lower end is fixed to the upper surface of the ball seat 209 on the damping rod, and its upper end abuts against the lower surface of the ball seat 202 on the support rod. The support spring 211 can buffer the continuous vibration generated by the operation of the steelmaking furnace. The lower fixing screw cap 204 is threaded to the upper end of the lower ball seat 201 on the support rod, and the upper fixing screw cap 205 is threaded to the lower end of the upper ball seat 202 on the support rod, respectively pressing the bottom and top ball heads of the double ball head support rod 203 to prevent the ball heads from coming out.

[0040] Example 2

[0041] Reference Figure 1-7 Based on Example 1, addressing the pain points of traditional installation structures that rely on external tools, involve cumbersome steps, and lack adaptability, the focus is on optimizing the rapid assembly and size adjustment structure of the upper and lower connecting components. The upper connecting component 3 is used to achieve tool-free rapid connection between the photovoltaic panel 1 and the damping support component 2, including a connecting seat 301 and four Torx nuts 304. The connecting seat 301 is pre-fixed to the bottom frame of the photovoltaic panel 1 at the factory by bolts, and four rectangularly distributed connecting bolts 302 are fixed to the bottom of the connecting seat 301. The ball seat 20 on the support rod... Four fixing holes 303 are correspondingly opened on the 2, and the diameter of the fixing holes 303 matches that of the connecting bolts 302. After the connecting bolts 302 pass through the fixing holes 303, they are threaded to the nut 304. The nut 304 is located inside the support spring 211, fixing the upper end of the support spring 211 between the ball seat 202 on the support rod and the nut 304. The surface of the nut 304 is provided with anti-slip knurled texture, which can be tightened by hand without any external tools such as wrenches, thus shortening the connection time between a single photovoltaic panel and the damping component.

[0042] The lower connecting component 5 is used to achieve quick adaptation and locking between the damping support component 2 and the roof connecting component 4. It includes a fixed mounting base 502, a movable mounting base 503, two sliding rods 505, an adjusting spline screw 506, a slot 501, and a locking block 507. The fixed mounting base 502 is fixedly welded to the bottom of the lower ball seat 201 of the support rod, and a sliding groove 504 is opened at one end of the fixed mounting base 502. The sliding rod 505 is fixed to one end of the movable mounting base 503 and slidably connected to the sliding groove 504. Within 04, the linear reciprocating sliding of the movable card seat 503 is realized; one end of the adjusting sprite head screw 506 is rotatably connected to the middle of the movable card seat 503, and the rod body is threadedly connected to the threaded hole in the middle of the fixed card seat 502. The movable card seat 503 can be driven to slide by manually rotating the adjusting sprite head screw 506. The opening and closing size of the fixed card seat 502 and the movable card seat 503 can be continuously adjusted to adapt to different specifications of T-shaped fixing seats 401 with a width in the range of 80-120mm.

[0043] Both the fixed mounting base 502 and the movable mounting base 503 have grooves on their inner sides that are adapted to the shape of the flange of the T-shaped fixing base 401, which can be tightly engaged on both sides of the T-shaped fixing base 401. The slots 501 are equally spaced on one side flange of the T-shaped fixing base 401, and the locking blocks 507 are correspondingly fixed on the groove wall on the inner side of the movable mounting base 503. The shape and size of the locking blocks 507 and the slots 501 are perfectly matched. When the movable mounting base 503 is tightened, the locking blocks 507 are embedded in the slots 501 to achieve mechanical locking and prevent vibration from causing the connection to loosen.

[0044] Example 3

[0045] Reference Figure 1-7 Photovoltaic installations on factory rooftops often require drilling holes to fix the base. Traditional sealing structures are rudimentary and prone to leaks caused by rainwater seeping into the holes, which can then corrode internal equipment and building structures. Addressing this industry pain point of rainwater leakage after roof drilling, this paper focuses on optimizing the sealing and rainwater drainage structure of the roof connection components based on Example 2. Specifically: Roof connection component 4 includes a T-shaped fixing base 401, a sealing ring 404, and multiple drainage channels 402. The T-shaped fixing base 401 is made of Q235 galvanized steel with an M12 screw hole 403 in the center for inserting fixing bolts to connect to the roof concrete base or corrugated steel purlins. The sealing ring 404 is made of weather-resistant butyl rubber with a thickness of 5mm, and is fixedly bonded to the bottom of the T-shaped fixing base 401 through a vulcanization process, completely surrounding the area below the screw hole 403.

[0046] The drainage channels 402 are evenly distributed at the bottom of the T-shaped fixing base 401. During installation, the drainage channels 402 are arranged along the roof slope. When the fixing bolts are tightened, the sealing ring 404 undergoes elastic deformation under the bolt clamping force, completely filling the gaps at the roof holes and the tiny unevenness of the roof surface, forming the first waterproof barrier. The drainage channels 402 at the bottom of the T-shaped fixing base 401 form a continuous rainwater drainage channel, quickly guiding away any small amount of rainwater that may seep into the bottom of the fixing base, preventing rainwater accumulation and infiltration, thus forming the second waterproof barrier.

[0047] Example 4

[0048] To further explain the above embodiments, the present invention also provides an installation method for a photovoltaic system installation structure on the roof of a steelmaking and smelting plant. The specific steps for installing a photovoltaic system using this structure are as follows:

[0049] Step S1: Insert the T-shaped fixing bracket 401 through the screw hole 403 and tighten it to the preset installation position on the roof of the steelmaking and smelting plant area. This will make the sealing ring 404 at the bottom of the T-shaped fixing bracket 401 fit tightly against the roof under the pressure of the bolts, sealing the gaps in the drilling. At the same time, the drainage channel 402 at the bottom of the T-shaped fixing bracket 401 forms a rainwater drainage channel on the roof.

[0050] Step S2: Insert the bottom ball of the double ball joint support rod 203 into the lower ball seat 201 of the support rod, so that the limiting block 206 on the inner side of the lower ball seat 201 of the support rod is embedded in the limiting groove 207 at the bottom of the double ball joint support rod 203, and tighten the lower fixing screw cap 204 to complete the bottom movable connection; insert the top ball of the double ball joint support rod 203 into the upper ball seat 202 of the support rod, and tighten the upper fixing screw cap 205 to complete the top movable connection; movably install the two ends of several double ball joint damping rods 210 between the corresponding lower ball seat 208 and upper ball seat 209 of the damping rod, and install the support spring 211 on the upper surface of the upper ball seat 209 of the damping rod;

[0051] Step S3: Align the connector 301, which is pre-fixed to the bottom of the photovoltaic panel 1, with the ball seat 202 on the support rod, so that the connecting bolt 302 at the bottom of the connector 301 passes through the fixing hole 303 of the ball seat 202 on the support rod and is fitted into the inside of the support spring 211. Tighten the plum nut 304 to complete the toolless quick connection between the photovoltaic panel 1 and the damping support assembly 2.

[0052] Step S4: Align the fixed bracket 502 at the bottom of the damping support assembly 2 with the T-shaped fixing bracket 401 on the roof. Rotate the adjusting sprite head screw 506 to drive the movable bracket 503 to slide along the slide groove 504, expanding the opening and closing size of the fixed bracket 502 and the movable bracket 503, and then fit it into the T-shaped fixing bracket 401. Rotate the adjusting sprite head screw 506 in the opposite direction to tighten the movable bracket 503 until the locking block 507 on the inner side of the movable bracket 503 is fully engaged with the locking groove 501 of the T-shaped fixing bracket 401, completing the overall installation.

Claims

1. A photovoltaic system installation structure for the roof of a steelmaking and smelting plant, characterized in that, It includes a photovoltaic panel (1) and a damping support assembly (2), an upper connection assembly (3), a roof connection assembly (4), and a lower connection assembly (5) installed at the bottom of the photovoltaic panel (1); the upper connection assembly (3) is located above the damping support assembly (2) and is fixedly connected to the photovoltaic panel (1); the lower connection assembly (5) is fixed below the damping support assembly (2); and the roof connection assembly (4) is connected to the roof and adapted to the lower connection assembly (5). The damping support assembly (2) includes a double-ball-head support rod (203), a lower ball seat (201), an upper ball seat (202), and several double-ball-head damping rods (210). The two ends of the double-ball-head support rod (203) are movably engaged with the lower ball seat (201) and the upper ball seat (202), respectively. Several double-ball-head damping rods (210) are arranged in a circumferential array around the double-ball-head support rod (203) to form a damping buffer structure. A limit anti-rotation component is provided between the bottom of the double-ball-head support rod (203) and the lower ball seat (201). A support spring (211) is provided below the upper ball seat (202) to buffer the continuous vibration generated by the operation of the steelmaking furnace.

2. The photovoltaic system installation structure for a steelmaking and smelting plant roof as described in claim 1, characterized in that, The limiting and anti-rotation component includes several limiting blocks (206) and matching limiting grooves (207). The limiting blocks (206) are arranged in a circumferential array and fixed on the inner side wall of the lower ball seat (201) of the support rod. The limiting grooves (207) are circumferentially opened on the bottom ball head of the double ball head support rod (203). One end of the limiting block (206) is embedded in the limiting groove (207), allowing the double ball head support rod (203) to swing within a preset angle range and restricting its circumferential rotation.

3. The photovoltaic system installation structure for a steelmaking and smelting plant roof as described in claim 2, characterized in that, The damping support assembly (2) further includes a lower fixing cap (204) and an upper fixing cap (205). The lower fixing cap (204) is threadedly connected to the lower ball seat (201) of the support rod, and the upper fixing cap (205) is threadedly connected to the upper ball seat (202) of the support rod.

4. The photovoltaic system installation structure for a steelmaking and smelting plant roof as described in claim 3, characterized in that, The upper surface of the lower ball seat (201) of the support rod is uniformly and circumferentially fixedly connected with a plurality of lower ball seats (208) of damping rods. The outer side wall of the top end of the double ball head support rod (203) is correspondingly fixedly connected with a plurality of upper ball seats (209) of damping rods. The two ends of the double ball head damping rod (210) are respectively movably installed between the corresponding lower ball seat (208) of damping rods and the upper ball seat (209) of damping rods. The lower end of the support spring (211) is installed on the upper surface of the upper ball seat (209) of damping rods, and the upper end abuts against the lower surface of the upper ball seat (202) of the support rod.

5. The photovoltaic system installation structure for a steelmaking and smelting plant roof as described in claim 4, characterized in that, The upper connecting assembly (3) includes a connecting seat (301) and several swivel nuts (304); the connecting seat (301) is fixedly installed on the bottom of the photovoltaic panel (1), and several connecting bolts (302) are fixedly connected to the bottom of the connecting seat (301). Several fixing holes (303) are opened on the ball seat (202) of the support rod. The connecting bolts (302) pass through the fixing holes (303) and are threadedly connected to the swivel nuts (304), and the swivel nuts (304) are located inside the support spring (211).

6. The photovoltaic system installation structure for a steelmaking and smelting plant roof as described in claim 5, characterized in that, The roof connection assembly (4) includes a T-shaped fixing seat (401), a sealing ring (404), and several water channels (402); a screw hole (403) is provided in the middle of the T-shaped fixing seat (401), the sealing ring (404) is fixedly connected to the bottom of the T-shaped fixing seat (401) and located below the screw hole (403), and several water channels (402) are evenly distributed at the bottom of the T-shaped fixing seat (401).

7. The photovoltaic system installation structure for a steelmaking and smelting plant roof as described in claim 6, characterized in that, The lower connecting assembly (5) includes a fixed bracket (502), a movable bracket (503), a slide rod (505), and an adjusting sprite head screw (506); the fixed bracket (502) is fixedly connected to the bottom of the lower ball seat (201) of the support rod, and a slide groove (504) is provided at one end of the fixed bracket (502). The slide rod (505) is fixedly connected to one end of the movable bracket (503) and slidably connected inside the slide groove (504). The adjusting sprite head screw (506) is rotatably connected to the middle of the movable bracket (503) and threadedly connected to the fixed bracket (502); the inner shapes of the fixed bracket (502) and the movable bracket (503) are adapted to the shape of the T-shaped fixing seat (401).

8. The photovoltaic system installation structure for a steelmaking and smelting plant roof as described in claim 7, characterized in that, The lower connecting component (5) further includes a slot (501) and a block (507). The slot (501) is located on one side of the T-shaped fixing seat (401), and the block (507) is fixedly connected to the inside of the movable card seat (503). The block (507) is adapted to the slot (501).

9. The photovoltaic system installation structure for the roof of a steelmaking and smelting plant area according to claim 9, characterized in that, The diameter of the fixing hole (303) matches that of the connecting bolt (302).

10. A method for installing a photovoltaic system on the roof of a steelmaking and smelting plant, comprising the photovoltaic system installation structure as described in claim 9, characterized in that, Includes the following steps: Step S1: Insert the T-shaped fixing seat (401) through the screw hole (403) and fasten it to the preset installation position on the roof of the steelmaking and smelting plant area. This will make the sealing ring (404) at the bottom of the T-shaped fixing seat (401) fit tightly against the roof under the pressure of the bolt, sealing the gap of the hole. At the same time, the water channel (402) at the bottom of the T-shaped fixing seat (401) forms a rainwater drainage channel on the roof. Step S2: Insert the bottom ball of the double ball joint support rod (203) into the lower ball seat (201) of the support rod, so that the limiting block (206) on the inner side of the lower ball seat (201) of the support rod is embedded in the limiting groove (207) at the bottom of the double ball joint support rod (203), and tighten the lower fixing screw cap (204) to complete the bottom movable connection; insert the top ball of the double ball joint support rod (203) into the upper ball seat (202) of the support rod, and tighten the upper fixing screw cap (205) to complete the top movable connection; movably install the two ends of several double ball joint damping rods (210) between the corresponding lower ball seat (208) and upper ball seat (209) of the damping rod, and install the support spring (211) on the upper surface of the upper ball seat (209) of the damping rod. Step S3: Align the connector (301) pre-fixed to the bottom of the photovoltaic panel (1) with the ball seat (202) on the support rod, so that the connecting bolt (302) at the bottom of the connector (301) passes through the fixing hole (303) of the ball seat (202) on the support rod and is fitted into the inside of the support spring (211), and tighten the nut (304) to complete the toolless quick connection between the photovoltaic panel (1) and the damping support assembly (2); Step S4: Align the fixed bracket (502) at the bottom of the damping support assembly (2) with the T-shaped fixing seat (401) on the roof. Rotate the adjusting plum blossom head screw (506) to drive the moving bracket (503) to slide along the slide groove (504). After expanding the opening and closing size of the fixed bracket (502) and the moving bracket (503), fit it into the T-shaped fixing seat (401). Rotate the adjusting plum blossom head screw (506) in the opposite direction to tighten the moving bracket (503) until the locking block (507) on the inside of the moving bracket (503) is fully engaged with the locking groove (501) of the T-shaped fixing seat (401), and complete the overall installation.

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