Fireproof and flame-retardant performance detection equipment for distributed photovoltaic module

Abstract

The invention discloses fireproof and flame-retardant performance detection equipment for a distributed photovoltaic module, and relates to the technical field of fireproof and flame-retardant performance detection.The fireproof and flame-retardant performance detection equipment comprises a supporting bin, a supporting frame is fixedly installed on one side of the supporting bin, a base plate is fixedly installed on one side of the supporting frame, and an annular pipe is obliquely installed on one side of the supporting bin; the rectifier is fixedly connected to the inner circle wall face of the annular pipe in a sleeving mode and used for rectifying the PMC fuel combustible gas, and an electromagnet, a mounting frame, an iron block, a movable rod, an extrusion head, an arc-shaped plate, a supporting roller, a mounting box, a spring, a clamping strip, a clamping base, a clamping groove, a driving motor, a first synchronous wheel and a first synchronous belt are arranged to cooperate with one another; the inclination angles of the two groups of mounting racks and the photovoltaic panels can be adjusted by adjusting the inclination angles of the two groups of mounting racks and the photovoltaic panels, so that the inclination angles of the two photovoltaic panels in the same column during detection are the same as the inclination angles after actual installation, the test fits the reality, and the fireproof and flame-retardant detection effect of the photovoltaic panels is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of fireproof and flame-retardant performance detection, and particularly to a fireproof and flame-retardant performance detection device for distributed photovoltaic modules. Background Art

[0002] A distributed photovoltaic module refers to a device that directly converts solar energy into electrical energy using the photovoltaic effect. It is the core component of a distributed photovoltaic power generation system, mainly composed of photovoltaic cells, encapsulation materials, junction boxes, brackets, etc. Photovoltaic cells are usually made of silicon-based semiconductor materials (such as monocrystalline silicon, polycrystalline silicon, or amorphous silicon). When sunlight shines on the cell surface, photons excite electrons in the semiconductor, thereby generating an electric current. Distributed photovoltaic systems are usually installed on building roofs, walls, and other densely populated or flammable areas. Once a fire occurs, it may spread rapidly, resulting in serious property losses and casualties. Fireproof and flame-retardant performance detection can effectively evaluate the fire resistance of components when encountering external fire sources and reduce the fire risk.

[0003] After retrieval, it is found that there are problems in the fireproof and flame-retardant detection of photovoltaic panels in the prior art. During the detection, workers will use a flame to test a single photovoltaic panel. However, in the actual installation process, the photovoltaic panel is installed on a bracket, and the bracket is generally made of metal with good thermal conductivity. This causes the heat generated by combustion on the bracket to be quickly conducted to other parts of the photovoltaic panel during an actual fire, which may lead to excessive local temperature of the photovoltaic panel, affecting its performance and flame-retardant effect. Therefore, the influence of the bracket on the photovoltaic panel also needs to be considered in the fireproof and flame-retardant detection of the photovoltaic panel; secondly, photovoltaic panels are usually used in multiple pieces together, and the single-piece test effect is poor. At the same time, the spacing and installation angle between two adjacent photovoltaic panels in the same row will also affect the detection. If the spacing between the two photovoltaic panels is too small, the flame may more easily spread from one photovoltaic panel to another, resulting in an accelerated flame propagation speed. On the contrary, if the spacing is too large, the flame propagation may be inhibited, and the test result may tend to be more difficult to burn; correspondingly, the installation angle of the photovoltaic panel will affect the contact area between the flame and the photovoltaic panel. If the installation angle of the photovoltaic panel is small, the contact area between the flame and the photovoltaic panel is large, and the combustion may be more complete. If the installation angle is large, the contact area between the flame and the photovoltaic panel is small, and the combustion may be less complete. In summary, when performing fireproof and flame-retardant detection on photovoltaic panels, the spacing and installation angle of the photovoltaic panels should also be considered to conform to the actual situation. Therefore, based on the above retrieval and in combination with the prior art, a fireproof and flame-retardant performance detection device for distributed photovoltaic modules is proposed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a fireproof and flame-retardant performance detection device for distributed photovoltaic modules, which has the advantages of good detection effect, strong authenticity and high flexibility, so as to solve the problems that the heat transfer on the bracket to the photovoltaic panel affects the detection, and the interval and installation angle between two photovoltaic panels in the same row will also affect the detection mentioned in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A fireproof and flame-retardant performance detection device for distributed photovoltaic modules, comprising: a support bin, one side of the support bin is fixedly installed with a support frame, one side of the support frame is fixedly installed with a substrate, one side of the support bin is inclined to install an annular pipe, and one side inside the support bin is rotatably connected with an eddy current fan; a rectifier, the rectifier is fixedly sleeved on the inner circular wall surface of the annular pipe for rectifying the PMC fuel combustible gas; a spray head, the spray head is fixedly sleeved on the inner circular wall surface of the annular pipe for spraying the PMC fuel combustible gas; an ignition electrode, the ignition electrode is fixedly installed on the inner bottom surface of the support frame for igniting the PMC fuel combustible gas; a detection mechanism, the detection mechanism is arranged on the top surface of the substrate for fireproof and flame-retardant detection of the photovoltaic panel; the detection mechanism includes: a plurality of installation holes, all of the plurality of installation holes are opened on the top surface of the substrate, a movable seat is arranged inside the installation hole, a limiting rod is fixedly installed inside the installation hole, the limiting rod is slidably connected with the movable seat, a positioning block is fixedly installed on the top surface of the movable seat, an installation frame is rotatably connected between every two positioning blocks, a plurality of round holes are opened on the bottom surface of the installation frame, and heaters for heating are fixedly installed on both sides of the installation frame.

[0007] Furthermore, the detection mechanism further includes a top plate fixedly installed on one side of the substrate. A bidirectional lead screw is screw-connected to every two of the movable seats. One end of the bidirectional lead screw penetrates through the top plate and is fixedly installed with a second synchronous pulley. The outer circumferential wall surfaces of the two second synchronous pulleys are rotatably connected with a second synchronous belt. A second DC motor for driving the second synchronous pulley to rotate is installed on one side of the top plate. Two clamping seats are arranged on the bottom surface of the substrate. Two support beams are fixedly installed on the bottom surface of the substrate. A limiting frame is fixedly installed on the bottom surface of the support beam. A first synchronous pulley is rotatably connected inside the limiting frame. The outer circumferential wall surfaces of the two first synchronous pulleys are rotatably connected with a first synchronous belt. The first synchronous belt is fixedly connected with the clamping seat. A driving motor for driving the first synchronous pulley to rotate is installed on one side of the limiting frame on the right side. Two movable holes are opened on the top surface of the substrate. An activity block is arranged inside the movable hole. A support rod is fixedly installed inside the movable hole. The support rod is slidably connected with the activity block. Two second rotating blocks are fixedly installed on the top surface of the activity block. Two first rotating blocks are fixedly installed on the bottom surface of the mounting frame. A connecting rod is rotatably connected between the two first rotating blocks. The lower end of the connecting rod is rotatably connected with the two second rotating blocks. A fixed tube is fixedly installed on the bottom surface of the activity block. An electromagnet is fixedly installed on the bottom surface of the activity block. An iron block is slidably connected inside the fixed tube. An activity rod is fixedly installed on the bottom surface of the iron block. A partition plate is fixedly installed inside the fixed tube. The lower end of the activity rod penetrates through the partition plate and is fixedly installed with a pressing head at the bottom surface. A spring is sleeved on the outer circumferential wall surface of the activity rod. Connecting frames are fixedly installed on both sides of the fixed tube. A bottom plate is fixedly installed between the two connecting frames. A plurality of mounting boxes are fixedly installed on the top surface of the bottom plate. A support roller is rotatably connected inside the mounting box. One end of the support roller penetrates through the mounting box and extends to the outside of the mounting box. A clockwork spring is wound around the outer circumferential wall surface of the support roller. An arc-shaped plate is fixedly installed between every two support rollers. A plurality of clamping strips are fixedly installed on the outer circumferential wall surface of the arc-shaped plate. A plurality of card slots are opened on both sides of the inner bottom surface of the clamping seat. The clamping strip is movably clamped with the card slot. A chute is opened on the inner bottom surface of the clamping seat. A slider is fixedly installed on the bottom surface of the bottom plate. The slider is slidably connected with the chute.

[0008] Furthermore, a plurality of base blocks are fixedly installed on the bottom surface of the substrate. A limiting rod is fixedly installed between every two base blocks. Two limiting blocks are fixedly installed on the top surface of the clamping seat. The limiting block is slidably connected with the limiting rod.

[0009] Furthermore, a plurality of spoiler plates are rotatably connected inside the support bin. A gear is coaxially connected to one side of the spoiler plate. A toothed plate is slidably connected to one side of the support bin. The toothed plate is meshed with the gear. A moving member for driving the toothed plate to move is arranged on one side of the support bin.

[0010] Further, the moving member includes two fixed blocks, both of the two fixed blocks are fixedly installed on one side of the support bin, a lead screw is rotatably connected between the two fixed blocks, a connecting block is fixedly installed on one side of the toothed plate, the lead screw is threadedly connected to the connecting block, a positioning rod is fixedly installed between the two fixed blocks, the connecting block is slidably connected to the positioning rod, and a DC motor one for driving the lead screw to rotate is fixedly installed on the bottom surface of the lower fixed block.

[0011] Further, support blocks for restricting the movement of the iron block are fixedly installed on both sides of the iron block, support holes are formed on both sides of the fixed pipe, and the support blocks are slidably connected to the support holes.

[0012] Further, a plurality of air inlet holes for air intake are formed on one side of the support bin, and a filter screen for dust prevention is installed on one side of the support bin.

[0013] Further, a guide seat is fixedly installed on the top surface of the substrate, and a fireproof board for blocking the flame is fixedly installed on the top surface of the movable seat.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. By the mutual cooperation of the installation frame, DC motor two, synchronous pulley two, synchronous belt two, bidirectional lead screw, and movable seat, the distance between the two photovoltaic panels can be adjusted according to the actual installation situation, and then the fireproof and flame retardant detection of the photovoltaic panels can be carried out under the condition of the actual installation distance; by the mutual cooperation of the electromagnet, installation frame, iron block, movable rod, extrusion head, arc plate, support roller, installation box, spring, clamping strip, clamping seat, card slot, drive motor, synchronous pulley one, and synchronous belt one, the inclination angles of the two groups of installation frames and the photovoltaic panels can be adjusted simultaneously or the inclination angles of the two groups of installation frames and the photovoltaic panels can be adjusted separately, so that the inclination angles of the two photovoltaic panels in the same column are the same as the inclination angles after subsequent installation during the detection.

[0016] By the mutual cooperation of the support bin, annular pipe, rectifier, nozzle, ignition electrode, eddy current fan, installation frame, and heater, the two heaters can heat the two sides of the photovoltaic panel to simulate the heating of the photovoltaic panel by the bracket during the actual combustion process, further conforming to the actual situation and achieving the fireproof and flame retardant detection effect on the photovoltaic panel, which is helpful for the test of the photovoltaic panel before installation and use.

[0017] 2. By the mutual cooperation of the DC motor one, lead screw, connecting block, positioning rod, and toothed plate, the toothed plate can be driven to move. By the mutual cooperation of the toothed plate, gear, eddy current fan, and spoiler, the air flow angle can be changed, and then the air flow direction can be made to conform to the actual wind direction situation, further improving the accuracy of the fireproof and flame retardant detection of the photovoltaic panel. Brief Description of the Drawings

[0018] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0019] Figure 2 is a connection structure schematic diagram of the support bin and the eddy current fan of the present invention;

[0020] Figure 3 is a left view schematic diagram of the installation structure of the filter screen and the support bin of the present invention;

[0021] Figure 4 is Figure 3 a partial structure enlarged schematic diagram of A in

[0022] Figure 5 is a sectional view schematic diagram of the connection structure of the annular pipe and the nozzle of the present invention;

[0023] Figure 6 is a connection structure schematic diagram of the mounting bracket and the substrate of the present invention;

[0024] Figure 7 is Figure 6 a partial structure enlarged schematic diagram of B in

[0025] Figure 8 is a bottom view schematic diagram of the connection structure of the movable seat and the substrate of the present invention;

[0026] Figure 9 is Figure 8 a partial structure enlarged schematic diagram of C in

[0027] Figure 10 is a connection structure schematic diagram of the movable block and the fixed pipe of the present invention;

[0028] Figure 11 is a mounting structure schematic diagram of the arc plate and the clamping strip of the present invention;

[0029] Figure 12 is a connection structure schematic diagram of the support roller and the mounting box of the present invention.

[0030] In the figure: 1, support bin; 2, support frame; 3, base plate; 4, detection mechanism; 5, annular pipe; 6, eddy current fan; 7, filter screen; 8, support hole; 9, air inlet hole; 10, installation box; 11, nozzle; 12, ignition electrode; 13, spring; 14, support roller; 15, toothed plate; 16, gear; 17, fixed block; 18, connecting block; 19, positioning rod; 20, DC motor 1; 21, spoiler; 22, rectifier; 23, limiting rod; 24, mounting bracket; 25, heater; 26, positioning block; 27, mounting hole; 28, movable seat; 29, fireproof board; 30, movable hole; 31, movable block; 32, support rod; 33, rotating block 1; 34, connecting rod; 35, rotating block 2; 36, support beam; 37, limiting frame; 38, synchronous pulley 1; 39, drive motor; 40, synchronous belt 1; 41, bidirectional lead screw; 42, top plate; 43, DC motor 2; 44, synchronous pulley 2; 45, synchronous belt 2; 46, arc plate; 47, clamping seat; 48, base block; 49, limiting block; 50, limiting rod; 51, fixed pipe; 52, extrusion head; 53, bottom plate; 54, slider; 55, chute; 56, card slot; 57, clamping strip; 58, electromagnet; 59, iron block; 60, support block; 61, movable rod; 62, spring; 63, partition board; 64, connecting frame; 65, lead screw; 66, guiding seat. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In a typical implementation manner of this application, please refer to Figures 1 to 12 , a fire and flame retardant performance detection device for distributed photovoltaic modules, including a support bin 1, a support frame 2 is fixedly installed on one side of the support bin 1, a base plate 3 is fixedly installed on one side of the support frame 2, support legs are fixedly installed on the bottom surfaces of both the support bin 1 and the base plate 3, an annular pipe 5 is obliquely installed on one side of the support bin 1 through a connecting member, an eddy current fan 6 is rotatably connected to one side inside the support bin 1, the inclination of the annular pipe 5 is: 127 mm / 300 mm, that is, the annular pipe 5 is inclined by about 22.5 degrees, a rectifier 22 is fixedly sleeved on the inner wall surface of the annular pipe 5 for rectifying the PMC fuel combustible gas, a nozzle 11 is fixedly sleeved on the inner wall surface of the annular pipe 5 for spraying the PMC fuel combustible gas, and the rectifier 22 supplies gas to ensure that the gas has a uniform velocity and pressure distribution when entering the nozzle 11; an ignition electrode 12 is fixedly installed on the inner bottom surface of the support frame 2 for igniting the PMC fuel combustible gas;

[0033] The detection mechanism 4 is arranged on the top surface of the substrate 3 and is used for fireproof and flame-retardant detection of the photovoltaic panel. The detection mechanism 4 includes: a plurality of mounting holes 27, all of the plurality of mounting holes 27 are opened on the top surface of the substrate 3, a movable seat 28 is arranged inside the mounting hole 27, a limiting rod 23 is fixedly installed inside the mounting hole 27, the limiting rod 23 is slidably connected with the movable seat 28, the limiting rod 23 can limit the movement of the movable seat 28, a positioning block 26 is fixedly installed on the top surface of the movable seat 28, an installation frame 24 is rotatably connected between every two positioning blocks 26 through a rotating shaft, a plurality of round holes are opened on the bottom surface of the installation frame 24, and the photovoltaic panel to be detected can be fixed inside the installation frame 24 by putting bolts into the round holes. The installation frame 24 is used to simulate the bracket used in the actual use process of the photovoltaic panel. The installation frame 24 is made of ceramic material, and heaters 25 for heating are fixedly installed on both sides of the installation frame 24;

[0034] Among them, by connecting the PMC fuel combustible gas into the inside of the annular pipe 5, after being rectified by the rectifier 22, the PMC fuel combustible gas is sprayed out through the nozzle 11. The sprayed PMC fuel combustible gas is ignited by the ignition electrode 12 to generate a flame. At this time, the eddy current fan 6 generates an air flow to simulate the wind speed condition in reality. The flame is sprayed onto the photovoltaic panels inside the two installation frames 24 and burns under the action of the air flow. During this process, the heater 25 will provide heating to the side of the photovoltaic panel to simulate the heating of the side of the photovoltaic panel by the bracket after being heated in an actual fire, and the detection result conforms to the actual use process;

[0035] In addition, the flow rate of the PMC fuel combustible gas entering the inside of the annular pipe 5 is divided into the following situations: Class A&B: 21,000 - 22,000 Btu / min (369 - 387 kWh) for 10 minutes; Class C: 18,000 - 19,000 Btu / min (316 - 334 kWh) for 4 minutes; the wind speed of the eddy current fan is 19 ± 0.8 km / h (5.3 ± 0.2 m / s).

[0036] The detection mechanism 4 further includes a top plate 42. The top plate 42 is fixedly installed on one side of the substrate 3. A two-way lead screw 41 is screwed on every two movable seats 28. One end of the two-way lead screw 41 penetrates through the top plate 42 and is fixedly installed with a second synchronous pulley 44. Two bearing seats are fixedly installed on one side of the substrate 3. The two-way lead screw 41 is rotatably connected with the bearing seats, and the bearing seats support the two-way lead screw 41;

[0037] A second synchronous belt 45 is rotatably connected to the outer circumferential wall surfaces of the two second synchronous pulleys 44. A DC motor two 43 for driving the second synchronous pulley 44 to rotate is installed on one side of the top plate 42 through a bracket. The driving shaft of the DC motor two 43 is fixedly connected to one end of the second synchronous pulley 44 located on the right side;

[0038] Among them, the cooperation of the DC motor II 43, the synchronous pulley II 44 and the synchronous belt II 45 can drive the two bidirectional lead screws 41 to rotate synchronously. The rotation of the two bidirectional lead screws 41 causes the movable seat 28 to move on the bidirectional lead screws 41. The movement of the movable seat 28 drives the mounting frame 24 and the photovoltaic panel thereon to move, so that the two groups of mounting frames 24 and the photovoltaic panels move inwards or outwards synchronously, adjusting the distance between adjacent two photovoltaic panels to simulate the distance between the photovoltaic panels after actual installation;

[0039] Two clamping seats 47 are arranged on the bottom surface of the substrate 3. Two support beams 36 are fixedly installed on the bottom surface of the substrate 3. A limiting frame 37 is fixedly installed on the bottom surface of the support beam 36. A synchronous pulley I 38 is rotatably connected to the inside of the limiting frame 37 through a bearing. A synchronous belt I 40 is rotatably connected to the outer wall surfaces of the two synchronous pulleys I 38. The synchronous belt I 40 is fixedly connected to the clamping seat 47 through a connecting member. A driving motor 39 for driving the synchronous pulley I 38 to rotate is installed on one side of the limiting frame 37 on the right side. One end of the driving shaft of the driving motor 39 penetrates through the limiting frame 37 and is fixedly connected to one end of the synchronous pulley I 38;

[0040] Among them, the driving motor 39 drives the synchronous pulley I 38 to rotate. The rotation of the two synchronous pulleys I 38 drives the bidirectional lead screw 41 to move. The movement of the synchronous belt I 40 drives the two clamping seats 47 to move;

[0041] On the top surface of the substrate 3, two movable holes 30 are provided. Inside the movable holes 30, movable blocks 31 are arranged. Inside the movable holes 30, support rods 32 are fixedly installed. The support rods 32 are slidably connected to the movable blocks 31. The support rods 32 can limit the movement of the movable blocks 31. On the top surface of the movable blocks 31, two second rotating blocks 35 are fixedly installed. On the bottom surface of the mounting frame 24, two first rotating blocks 33 are fixedly installed. Between the two first rotating blocks 33, a connecting rod 34 is rotatably connected through a rotating shaft. The lower end of the connecting rod 34 is rotatably connected to the two second rotating blocks 35 through a rotating shaft. On the bottom surface of the movable block 31, a fixed tube 51 is fixedly installed. On the bottom surface of the movable block 31, an electromagnet 58 is fixedly installed. Inside the fixed tube 51, an iron block 59 is slidably connected. The electromagnet 58 can adsorb the iron block 59. On the bottom surface of the iron block 59, a movable rod 61 is fixedly installed. Inside the fixed tube 51, a partition plate 63 is fixedly installed. The lower end of the movable rod 61 penetrates through the partition plate 63 and a pressing head 52 is fixedly installed on the bottom surface. The radius of the pressing head 52 gradually decreases from top to bottom. A spring 62 is sleeved on the outer wall surface of the movable rod 61. One end of the spring 62 is fixedly connected to the bottom surface of the partition plate 63, and the other end of the spring 62 is fixedly connected to the bottom surface of the iron block 59. On both sides of the fixed tube 51, connecting frames 64 are fixedly installed. Between the two connecting frames 64, a bottom plate 53 is fixedly installed. On the top surface of the bottom plate 53, a plurality of mounting boxes 10 are fixedly installed. Inside the mounting boxes 10, support rollers 14 are rotatably connected through rotating shafts. One end of the support roller 14 penetrates through the mounting box 10 and extends to the outside of the mounting box 10. A winding spring 13 is wound around the outer wall surface of the support roller 14. One side of the winding spring 13 is fixedly connected to the inner wall surface of the mounting box 10, and the other side of the winding spring 13 is fixedly connected to the outer wall surface of the support roller 14. The winding spring 13 can provide the acting force required for the support roller 14 to return to its original position. Between every two support rollers 14, an arc-shaped plate 46 is fixedly installed. On the outer wall surface of the arc-shaped plate 46, a plurality of clamping strips 57 are fixedly installed. On both sides inside the clamping seat 47, a plurality of clamping grooves 56 are provided. The clamping strips 57 are movably clamped with the clamping grooves 56;

[0042] Among them, after installing two photovoltaic panels inside the mounting frame 24, the angle of the mounting frame 24 is adjusted according to the actual installation angle of the photovoltaic panels. After the electromagnet 58 is powered off, the iron block 59 and the movable rod 61 move downward under the action of the spring 62. The movable rod 61 drives the pressing head 52 to move downward to press the two arc-shaped plates 46. The arc-shaped plates 46 are pressed and rotate outward, so that the clamping strips 57 thereon are clamped with the clamping grooves 56 on the clamping seat 47. At this time, the movement of the clamping seat 47 drives the movement of the movable block 31. The movement of the movable block 31 changes the angle of the mounting frame 24 and the photovoltaic panels thereon through the connecting rod 34, so that the two photovoltaic panels simulate the actual installation angle during the test, making the fireproof and flame-retardant detection closer to the actual situation and the results more accurate;

[0043] In addition, by individually controlling the two electromagnets 58, one of the two mounting brackets 24 is connected to the clamping seat 47, so that the two mounting brackets 24 are maintained at different angles, meeting various installation situations in practice;

[0044] A PLC controller is fixedly installed on one side of the support bin 1, and the eddy current fan 6, the drive motor 39, the ignition electrode 12, and the electromagnet 58 are all electrically connected to the PLC controller;

[0045] A chute 55 is provided on the inner bottom surface of the clamping seat 47, a slider 54 is fixedly installed on the bottom surface of the bottom plate 53, and the slider 54 is slidably connected to the chute 55. Both the chute 55 and the slider 54 are of T-shaped structures, with strong stability. The cooperation of the chute 55 and the slider 54 can limit the movement of the bottom plate 53.

[0046] With the above technical features, through the provided mounting brackets 24, the staff installs two photovoltaic panels inside the two mounting brackets 24 respectively, marked as the first photovoltaic panel and the second photovoltaic panel from left to right;

[0047] Before conducting the fireproof and flame-retardant test on the photovoltaic panels, the staff first determines the installation angle of the photovoltaic panels in practice and the interval between the photovoltaic panels in the same row, and adjusts the position of the photovoltaic panels according to the actual installation angle and the interval between the photovoltaic panels in the same row;

[0048] The PLC controller starts the second DC motor 43. The drive shaft of the second DC motor 43 rotates to drive the second synchronous wheel 44 to rotate. The rotation of the second synchronous wheel 44 drives another second synchronous wheel 44 to rotate through the second synchronous belt 45. The rotation of the two second synchronous wheels 44 drives the bidirectional lead screw 41 to rotate. The rotation of the bidirectional lead screw 41 causes the two movable seats 28 to drive the mounting bracket 24 to move. When the bidirectional lead screw 41 rotates clockwise, the two groups of movable seats 28 and the mounting bracket 24 can move inward. When the bidirectional lead screw 41 rotates counterclockwise, the two groups of movable seats 28 and the mounting bracket 24 can move outward, so as to adjust the distance between the two photovoltaic panels according to the actual installation situation, and then conduct the fireproof and flame-retardant detection on the photovoltaic panels under the condition of the actual installation distance;

[0049] On the one hand, when the installation angles of the two rows of photovoltaic panels are the same, the staff cuts off the power supply to the electromagnets 58 corresponding to the two mounting brackets 24 through the PLC controller. After losing the magnetic attraction of the electromagnets 58, the acting force of the spring 62 causes the movable rod 61 to drive the iron block 59 to move downward. The downward movement of the movable rod 61 drives the extrusion head 52 to move downward. The downward movement of the extrusion head 52 will squeeze the two arc-shaped plates 46. The arc-shaped plates 46 are squeezed and rotate outward. The outward rotation of the arc-shaped plates 46 drives the support roller 14 to rotate inside the installation box 10 and at the same time makes the clockwork spring 13 wind up. The outward rotation of the arc-shaped plates 46 drives the clamping strip 57 to rotate outward. The outward rotation of the clamping strip 57 will be clamped with the clamping groove 56 inside the clamping seat 47. At this time, the movable block 31 will be connected to the clamping seat 47;

[0050] The PLC controller starts the drive motor 39. The drive shaft of the drive motor 39 rotates to drive the first synchronous pulley 38 to rotate. The rotation of the two first synchronous pulleys 38 causes the first synchronous belt 40 to move. The movement of the first synchronous belt 40 drives the two clamping seats 47 to move. The movement of the clamping seats 47 drives the movable block 31 to move along the support rod 32 inside the movable hole 30 of the base plate 3. By changing the rotation direction of the drive motor 39, the movement direction of the clamping seats 47 can be changed;

[0051] When the first synchronous belt 40 drives the two clamping seats 47 to move to the right, the movable block 31 moves to the right and drives the mounting bracket 24 to rotate downward through the connecting rod 34, and at the same time makes the mounting bracket 24 rotate around the positioning block 26. The movable block 31 moves to the left and drives the mounting bracket 24 to rotate upward along the positioning block 26, thereby adjusting the inclination angle of the two photovoltaic panels, that is, the actual mounting angle;

[0052] On the other hand, when the installation angles of the two rows of photovoltaic panels are different, when the staff cuts off the power supply of the electromagnet 58 corresponding to the first photovoltaic panel, the acting force of the movable rod 61 causes the movable rod 61 and the extrusion head 52 to move downward. The downward movement of the extrusion head 52 squeezes the arc-shaped plate 46. The arc-shaped plate 46 is squeezed and rotates outward to be clamped with the clamping seat 47. At this time, the mounting bracket 24 corresponding to the second photovoltaic panel is connected to the clamping seat 47. At this time, when the first synchronous belt 40 moves to drive the two clamping seats 47 to move, only the connecting rod 34 corresponding to the second photovoltaic panel rotates, which causes the slider 54 to slide inside the chute 55 of the clamping seat 47. When the angle of the second photovoltaic panel is adjusted to the appropriate position, the clamping seat 47 stops moving. At this time, the electromagnet 58 corresponding to the first photovoltaic panel is powered off, which causes the arc-shaped plate 46 corresponding to the first photovoltaic panel to be clamped with the clamping seat 47, thereby determining the angles of the two photovoltaic panels. Through the above process, the angle of the second photovoltaic panel can be adjusted without changing the angle of the first photovoltaic panel;

[0053] Conversely, the angle of the first photovoltaic panel can also be adjusted in the same way without changing the angle of the second photovoltaic panel. By separately adjusting the two mounting brackets 24 and the angles of the photovoltaic panels, the inclination angles of the two photovoltaic panels in the same row can meet the actual situation, and more detectable situations can be achieved, with strong flexibility;

[0054] Then, the staff connects the PMC fuel combustible gas to the intake end of the annular pipe 5. The PMC fuel combustible gas entering the inside of the annular pipe 5 will be rectified by the rectifier 22. The rectified PMC fuel combustible gas is ejected through the nozzle 11. When the ejected PMC fuel combustible gas passes through the ignition electrode 12, it is ignited to generate a flame. At this time, the PLC controller starts the eddy current fan 6. The eddy current fan 6 rotates to generate an air flow. The air flow can simulate the air flow received by the photovoltaic panel during actual use. The air flow will also cause the flame to shake, making the fire prevention and flame retardant detection of the photovoltaic panel conform to the actual situation;

[0055] Meanwhile, during the fireproof and flame-retardant detection of the photovoltaic panel, the PLC controller activates the heaters 25 on the mounting frame 24 to heat both sides of the photovoltaic panel, simulating the heating of the photovoltaic panel by the support during an actual fire;

[0056] During this process, by adjusting the spacing between two mounting frames 24 in the same column, the installation spacing between two photovoltaic panels during the fireproof and flame-retardant detection conforms to the actual situation. Detection is carried out based on the actual installation spacing, with high authenticity; by simultaneously adjusting the inclination angles of two groups of mounting frames 24 and the photovoltaic panels or separately adjusting the inclination angles of two groups of mounting frames 24 and the photovoltaic panels, the inclination angles of two photovoltaic panels in the same column during the detection are made the same as those after subsequent installation, taking into account the influence of the installation angle of the photovoltaic panel on the fireproof and flame-retardant detection, making the detection more in line with the actual situation and having a better detection effect; by heating both sides of the photovoltaic panel with two heaters 25 to simulate the heating of the photovoltaic panel by the support during an actual combustion process, it is further in line with the actual situation, achieving the fireproof and flame-retardant detection effect of the photovoltaic panel, which is helpful for the test of the photovoltaic panel before installation and use.

[0057] As a preferred implementation method in this embodiment, please refer to Figures 1 to 11 , a plurality of base blocks 48 are fixedly installed on the bottom surface of the substrate 3, and a limiting rod 50 is fixedly installed between every two base blocks 48. The two base blocks 48 can support the limiting rod 50. Two limiting blocks 49 are fixedly installed on the top surface of the clamping seat 47, and the limiting blocks 49 are slidably connected to the limiting rod 50. The limiting rod 50 can limit the movement of the limiting blocks 49.

[0058] Specifically, through the provided clamping seat 47, the movement of the clamping seat 47 will drive the limiting block 49 to move along the limiting rod 50 between the two base blocks 48. The cooperation of the limiting block 49 and the limiting rod 50 can limit the movement of the clamping seat 47, improving the stability of the movement of the clamping seat 47.

[0059] A plurality of spoiler plates 21 are rotatably connected to the inside of the support bin 1 through a rotating shaft. One side of the spoiler plate 21 is coaxially connected to a gear 16 through a rotating shaft. A toothed plate 15 is slidably connected to one side of the support bin 1, and the toothed plate 15 is meshed with the gear 16. A moving member for driving the toothed plate 15 to move is provided on one side of the support bin 1;

[0060] Among them, during the detection process, the moving member drives the toothed plate 15 to move. The movement of the toothed plate 15 cooperates with the gear 16 to drive the spoiler plate 21 to rotate, changing the angle of the spoiler plate 21. The change in the angle of the spoiler plate 21 causes the direction of the airflow generated by the eddy current fan 6 to change, conforming to the actual wind direction situation.

[0061] Specifically, through the set eddy current fan 6, the eddy current fan 6 rotates to generate air flow. In order to simulate the actual wind direction, the staff drives the toothed plate 15 to move through the moving member. The movement of the toothed plate 15 drives the gear 16 to rotate, and the rotation of the gear 16 drives the spoiler 21 to rotate. The moving direction of the toothed plate 15 determines the rotation angle of the spoiler 21. After the spoiler 21 rotates, it can guide the air flow generated by the eddy current fan 6, thereby changing the air flow angle, and further making the air flow direction fit the actual wind direction situation, further improving the accuracy of the fire and flame retardant detection of the photovoltaic panel.

[0062] The moving member includes two fixed blocks 17. Both of the two fixed blocks 17 are fixedly installed on one side of the support bin 1. A lead screw 65 is rotatably connected between the two fixed blocks 17. A connecting block 18 is fixedly installed on one side of the toothed plate 15. The lead screw 65 is threadedly connected with the connecting block 18. A positioning rod 19 is fixedly installed between the two fixed blocks 17. The connecting block 18 is slidably connected with the positioning rod 19. The bottom surface of the lower fixed block 17 is fixedly installed with a direct current motor 20. One end of the drive shaft of the direct current motor 20 penetrates through the fixed block 17 and is fixedly connected with the bottom surface of the lead screw 65. The direct current motor 20 drives the lead screw 65 to rotate. The rotation of the lead screw 65 causes the connecting block 18 to drive the toothed plate 15 to move. The direct current motor 20 is electrically connected to the PLC controller.

[0063] Specifically, through the set direct current motor 20, the rotation of the drive shaft of the direct current motor 20 drives the lead screw 65 to rotate. The rotation of the lead screw 65 drives the connecting block 18 to move along the positioning rod 19. The positioning rod 19 can limit the movement of the connecting block 18. The movement of the connecting block 18 will also drive the toothed plate 15 to move, achieving the movement effect of the toothed plate 15.

[0064] Support blocks 60 for restricting the movement of the iron block 59 are fixedly installed on both sides of the iron block 59. Support holes 8 are opened on both sides of the fixed pipe 51. The support blocks 60 are slidably connected with the support holes 8. The cooperation of the support blocks 60 and the support holes 8 can restrict the movement of the iron block 59.

[0065] Specifically, through the set iron block 59, the downward movement of the iron block 59 will drive the support blocks 60 to move inside the support holes 8 on the side surface of the fixed pipe 51. The cooperation of the support blocks 60 and the support holes 8 can restrict the movement of the iron block 59, achieving the restriction effect on the iron block 59.

[0066] A plurality of air inlet holes 9 for air intake are opened on one side of the support bin 1. A dust filter 7 for dust prevention is installed on one side of the support bin 1 through bolts. The dust filter 7 can filter dust. The dust filter 7 can be removed from the side surface of the support bin 1 by removing the bolts, which is convenient for cleaning the dust on it.

[0067] Specifically, through the set eddy current fan 6, the rotation of the eddy current fan 6 causes the external air to enter the inside of the support bin 1 through the air inlet hole 9. During this process, the filter screen 7 can filter the dust in the air and reduce the dust entering the inside of the support bin 1.

[0068] A guide seat 66 is fixedly installed on the top surface of the substrate 3. The guide seat 66 can guide the detected flame, and a fireproof board 29 for blocking the flame is fixedly installed on the top surface of the movable seat 28.

[0069] Specifically, through the set nozzle 11, the flame generated by the nozzle 11 and the ignition electrode 12 is sprayed onto the photovoltaic panel through the guide seat 66. The guide seat 66 can guide the flame, and the fireproof board 29 can block the flame on the photovoltaic panel, improving the safety during detection.

[0070] Working principle: Through the set second DC motor 43, the cooperation of the second DC motor 43, the second synchronous pulley 44 and the second synchronous belt 45 can drive the two bidirectional lead screws 41 to rotate synchronously. The rotation of the two bidirectional lead screws 41 causes the movable seat 28 to move on the bidirectional lead screws 41. The movement of the movable seat 28 drives the mounting frame 24 and the photovoltaic panel thereon to move, so that the two sets of mounting frames 24 and the photovoltaic panels move inwards or outwards synchronously, adjusting the distance between adjacent two photovoltaic panels and simulating the distance between the photovoltaic panels after actual installation;

[0071] Secondly, adjust the angle of the mounting frame 24 according to the actual installation angle of the photovoltaic panel. After the electromagnet 58 is powered off, the iron block 59 and the movable rod 61 move downward under the action of the spring 62. The movable rod 61 drives the extrusion head 52 to move downward and extrude the two arc-shaped plates 46. The arc-shaped plates 46 are extruded and rotate outwards, so that the clamping strips 57 thereon are clamped with the clamping grooves 56 on the clamping seat 47. At this time, the movement of the clamping seat 47 drives the movable block 31 to move. The movement of the movable block 31 changes the angle of the mounting frame 24 and the photovoltaic panel thereon through the connecting rod 34, making the two photovoltaic panels simulate the actual installation angle during the test, making the fire and flame retardant detection closer to the actual situation and the result more accurate;

[0072] In addition, through the separate control of the two electromagnets 58, one of the two mounting frames 24 is connected to the clamping seat 47, so that the two mounting frames 24 are kept at different angles, meeting various installation situations in practice;

[0073] Subsequently, by introducing the PMC fuel combustible gas into the interior of the annular pipe 5, the PMC fuel combustible gas is rectified by the rectifier 22 and then ejected through the nozzle 11. The ejected PMC fuel combustible gas is ignited by the ignition electrode 12 to generate a flame. At this time, the eddy current fan 6 generates an air flow to simulate the wind speed conditions in reality. The flame is ejected onto the photovoltaic panels inside the two mounting brackets 24 under the action of the air flow and burns. During this process, the heater 25 provides heating to the side of the photovoltaic panel to simulate the heating of the side of the photovoltaic panel by the bracket after being heated in an actual fire. The test results are consistent with the actual use process;

[0074] Finally, during the detection process, the DC motor 1 20 drives the lead screw 65 to rotate. The rotation of the lead screw 65 causes the connecting block 18 to drive the toothed plate 15 to move. The movement of the toothed plate 15 cooperates with the gear 16 to drive the spoiler 21 to rotate, changing the angle of the spoiler 21. The change in the angle of the spoiler 21 causes the direction of the air flow generated by the eddy current fan 6 to change, conforming to the actual wind direction situation.

[0075] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A fire retardant performance testing device for distributed photovoltaic modules, characterized in that: include: A support bin (1), a support frame (2) being fixedly mounted on one side of the support bin (1), a base plate (3) being fixedly mounted on one side of the support frame (2), an annular tube (5) being obliquely mounted on one side of the support bin (1), and a vortex fan (6) being rotatably connected to one side of the interior of the support bin (1); A rectifier (22), the rectifier (22) being fixedly sleeved on the inner circular wall surface of the annular tube (5) and used for rectifying the PMC fuel combustible gas; A nozzle (11), the nozzle (11) is fixedly sleeved on the inner wall surface of the annular tube (5) and is used to spray PMC fuel combustible gas; An ignition electrode (12), the ignition electrode (12) being fixedly mounted on the inner bottom surface of the support frame (2) and used for igniting the PMC fuel combustible gas; A detection mechanism (4), the detection mechanism (4) being arranged on the top surface of the substrate (3) and used for performing fire retardancy detection on the photovoltaic panel; The detection mechanism (4) comprises: a plurality of mounting holes (27), wherein the plurality of mounting holes (27) are all provided on the top surface of the substrate (3), a movable seat (28) is provided inside the mounting hole (27), a limiting rod (23) is fixedly installed inside the mounting hole (27), the limiting rod (23) is slidably connected to the movable seat (28), a positioning block (26) is fixedly installed on the top surface of the movable seat (28), a mounting frame (24) is rotatably connected between every two positioning blocks (26), a plurality of circular holes are provided on the bottom surface of the mounting frame (24), and heaters (25) for heating are fixedly installed on both sides of the mounting frame (24).

2. The fire retardant performance testing equipment for distributed photovoltaic modules according to claim 1, characterized in that: The detection mechanism (4) further comprises a top plate (42), the top plate (42) being fixedly mounted on one side of the base plate (3), a bidirectional lead screw (41) being screwed onto each of the two movable seats (28), one end of the bidirectional lead screw (41) passing through the top plate (42) and being fixedly mounted with a synchronous wheel (44), the outer circumferential wall surfaces of the two synchronous wheels (44) being rotatably connected with a synchronous belt (45), a DC motor (43) (43) (43) for driving the synchronous wheels (44) to rotate being mounted on one side of the top plate (42), two clamping seats (47) being arranged on the bottom surface of the base plate (3), two support beams (36) being fixedly mounted on the bottom surface of the base plate (3), a limiting frame being fixedly mounted on the bottom surface of the support beam (36) (37), the limiting frame (37) is internally rotatably connected with a synchronous wheel (38), the outer circumferential wall surfaces of the two synchronous wheels (38) are rotatably connected with a synchronous belt (40), the synchronous belt (40) is fixedly connected to the clamping seat (47), a driving motor (39) for driving the synchronous wheel (38) to rotate is installed on one side of the limiting frame (37) on the right side, two movable holes (30) are provided on the top surface of the base plate (3), a movable block (31) is provided inside the movable hole (30), a support rod (32) is fixedly installed inside the movable hole (30), the support rod (32) is slidably connected to the movable block (31), and two rotating blocks are fixedly installed on the top surface of the movable block (31). Two (35), two rotating blocks (33) are fixedly installed on the bottom surface of the mounting frame (24), a connecting rod (34) is rotatably connected between the two rotating blocks (33), the lower end of the connecting rod (34) is rotatably connected to the two rotating blocks (35), a fixed tube (51) is fixedly installed on the bottom surface of the movable block (31), an electromagnet (58) is fixedly installed on the bottom surface of the movable block (31), an iron block (59) is slidably connected inside the fixed tube (51), a movable rod (61) is fixedly installed on the bottom surface of the iron block (59), a partition (63) is fixedly installed inside the fixed tube (51), the lower end of the movable rod (61) passes through the partition (63) and an extrusion head (52) is fixedly installed on the bottom surface The outer circular wall surface of the movable rod (61) is sleeved with a spring (62), connecting frames (64) are fixedly installed on both sides of the fixed tube (51), a bottom plate (53) is fixedly installed between the two connecting frames (64), a plurality of installation boxes (10) are fixedly installed on the top surface of the bottom plate (53), a support roller (14) is rotatably connected inside the installation box (10), one end of the support roller (14) passes through the installation box (10) and extends to the outside of the installation box (10), a spring (13) is wound around the outer circular wall surface of the support roller (14), an arc plate (46) is fixedly installed between every two support rollers (14), and a plurality of clamping strips (57) are fixedly installed on the outer circular wall surface of the arc plate (46),A plurality of slots (56) are provided on both sides of the interior of the said card seat (47), the said card strip (57) is movably connected with the said slots (56), a slide groove (55) is provided on the interior bottom surface of the said card seat (47), a slider (54) is fixedly installed on the bottom surface of the said bottom plate (53), and the said slider (54) is slidably connected with the said slide groove (55).

3. The fire retardant performance testing equipment for distributed photovoltaic modules according to claim 2, characterized in that: A plurality of base blocks (48) are fixedly mounted on the bottom surface of the base plate (3), a limiting rod (50) is fixedly mounted between every two of the base blocks (48), and two limiting blocks (49) are fixedly mounted on the top surface of the clamping seat (47), and the limiting blocks (49) are slidably connected to the limiting rods (50).

4. The fire retardant performance testing equipment for distributed photovoltaic modules according to claim 1, characterized in that: The support bin (1) is internally rotatably connected to a plurality of spoilers (21), one side of the spoiler (21) is coaxially connected to a gear (16), one side of the support bin (1) is slidably connected to a toothed plate (15), the toothed plate (15) is meshingly connected to the gear (16), and one side of the support bin (1) is provided with a moving part for driving the toothed plate (15) to move.

5. The fire retardant performance testing equipment for distributed photovoltaic modules according to claim 4, characterized in that: The movable member comprises two fixed blocks (17), the two fixed blocks (17) are fixedly mounted on one side of the support bin (1), a screw rod (65) is rotatably connected between the two fixed blocks (17), a connecting block (18) is fixedly mounted on one side of the toothed plate (15), the screw rod (65) is threadedly connected to the connecting block (18), a positioning rod (19) is fixedly mounted between the two fixed blocks (17), the connecting block (18) is slidably connected to the positioning rod (19), and a DC motor (20) for driving the screw rod (65) to rotate is fixedly mounted on the bottom surface of the fixed block (17) located below.

6. The fire retardant performance testing equipment for distributed photovoltaic modules according to claim 2, characterized in that: Support blocks (60) for limiting the movement of the iron block (59) are fixedly installed on both sides of the iron block (59), and support holes (8) are opened on both sides of the fixed tube (51), and the support blocks (60) are slidably connected to the support holes (8).

7. The fire retardant performance testing equipment for distributed photovoltaic modules according to claim 2, characterized in that: A plurality of air intake holes (9) for air intake are provided on one side of the support bin (1), and a filter screen (7) for dust prevention is installed on one side of the support bin (1).

8. The fire retardant performance testing equipment for distributed photovoltaic modules according to claim 1, characterized in that: A guide seat (66) is fixedly mounted on the top surface of the base plate (3), and a fireproof plate (29) for blocking flames is fixedly mounted on the top surface of the movable seat (28).

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