Photovoltaic dust quantitative distribution device

Abstract

The invention discloses a photovoltaic dust quantitative distribution device, and belongs to the technical field of test devices. A photovoltaic dust quantitative distribution device comprises a vibrating screen support, a positioning assembly used for being fixed to a solar photovoltaic panel is arranged at the bottom of the vibrating screen support, damping spring pieces are arranged at the four corners of the vibrating screen support, the ends, away from the vibrating screen support, of the damping spring pieces are connected with a screen frame, and motor supports are arranged on the two sides of the screen frame. A vibration motor is arranged on the motor bracket; the solar photovoltaic panel and the vibrating screen support are fixed through the positioning assembly, and the damping spring piece is in floating flexible connection with the screen frame, so that vibration of the vibrating motor can completely act on the screen frame, the screen frame plays a role in distributing and scattering dust and controlling the particle size of the dust, the dust is distributed and scattered to the surface of the solar photovoltaic panel, and the dust is prevented from falling off. The problems that the working intensity of workers is large and the dust deposition period of the outdoor solar photovoltaic panel in the actual state is long are effectively solved, and the test efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of test devices, and in particular to a photovoltaic dust quantitative scattering device. Background Art

[0002] Dust deposition is an important factor affecting the efficiency of photovoltaic power generation. Its distribution, shape, particle size, density and other parameters on the photovoltaic panel surface can have different degrees of impact on photovoltaic power generation.

[0003] At present, the study of the impact of dust on photovoltaic power generation efficiency in actual outdoor scenarios relies on the long-term natural accumulation of dust, which has a long experimental cycle and cannot meet the needs of rapid dust deposition-related research in actual scenarios. It cannot quickly simulate the distribution and morphology of dust on the photovoltaic panel surface under actual conditions, and control the dust particle size and dispersion density according to different test requirements to achieve related research such as photovoltaic cleaning and photovoltaic power generation efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a photovoltaic dust quantitative scattering device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A photovoltaic dust quantitative scattering device comprises a vibrating screen bracket, a positioning assembly for fixing to a solar photovoltaic panel is arranged at the bottom of the vibrating screen bracket, shock-absorbing spring parts are arranged at the four corners of the vibrating screen bracket, a screen frame is connected to one end of the shock-absorbing spring part away from the vibrating screen bracket, motor brackets are arranged on both sides of the screen frame, and a vibration motor is arranged on the motor bracket.

[0007] Preferably, the screen frame includes a left bar, a right bar, a dust baffle plate and a first filter screen, the dust baffle plate is fixedly provided with a pressure strip A, the left bar and the right bar are both connected to the pressure strip A, the left bar, the right bar and the dust baffle plate are welded to form an integral frame, the first filter screen is fixedly provided between the pressure strip A and the integral frame and between the pressure strip B and the integral frame by screws, and the bottom walls of the pressure strip A and the pressure strip B are in the same horizontal plane.

[0008] Preferably, the left side bar, the right side bar and the dust baffle have the same height, and a top plate is fixed on the top of the overall frame after the left side bar, the right side bar and the dust baffle are welded.

[0009] Preferably, a connecting plate is provided at the bottom of the left and right bars, a first electric push rod is provided on each connecting plate, a second filter is provided between the two first electric push rods, and the second filter is placed on the lower side of the first filter and is slidably connected to the first filter.

[0010] Preferably, the first filter screen and the second filter screen are both made of nylon, polyethylene or metal.

[0011] Preferably, the positioning assembly includes a first positioning plate fixed to the bottom of the vibrating screen bracket, a fixed plate fixed to the side of the vibrating screen bracket away from the first positioning plate, an adjusting screw threadedly connected to the fixed plate, and a second positioning plate arranged at the end of the adjusting screw.

[0012] Preferably, the first positioning plate and the second positioning plate have the same structure and are both configured as L-shaped plates, and the first positioning plate and the second positioning plate are both provided with rollers slidably connected to the solar photovoltaic panel via connecting parts.

[0013] Preferably, a second electric push rod is fixedly provided on the outside of the vibrating screen bracket, and the second electric push rod is connected to a receiving tray placed horizontally with the vibrating screen bracket through a connecting plate, a discharge pipe is provided at the bottom of the receiving tray, and the end of the discharge pipe away from the receiving tray is connected to a feed pipe, a feed pipe is provided on the feed pipe, and the end of the feed pipe away from the discharge pipe is placed on the upper side of the top plate.

[0014] Preferably, the material conveying pipe includes two sections of pipe body and a material guide pipe for connecting the two sections of pipe body, the material conveying assembly is provided with two groups and is respectively placed on the two sections of pipe body, the material conveying assembly includes a driving motor fixed on the pipe body, the output shaft of the driving motor is connected to a conveying shaft rotating in the pipe body, and the conveying shaft is provided with spiral conveying blades for conveying dust.

[0015] Preferably, a feed port is provided at the top of the top plate, and a cover plate is hingedly connected to the feed port.

[0016] Compared with the prior art, the present invention provides a photovoltaic dust quantitative scattering device, which has the following beneficial effects:

[0017] 1. The photovoltaic dust quantitative scattering device fixes the solar photovoltaic panel and the vibrating screen bracket through the positioning component, and is connected to the screen frame in a floating and flexible manner through the shock-absorbing spring part, so that the vibration of the vibration motor can act entirely on the screen frame. The screen frame plays the role of scattering dust and controlling the dust particle size, and scattering dust to the surface of the solar photovoltaic panel, effectively solving the problem of high work intensity for the staff and avoiding the long dust deposition period of the outdoor solar photovoltaic panel in the actual state, thereby improving the test efficiency.

[0018] 2. The photovoltaic dust quantitative scattering device arranges a second filter at the lower side of the first filter, so that the first electric push rod adjusts the position of the second filter according to the dust particle size required for the test, so that the first filter and the second filter fit and stagger, and then adjusts the overall sieve particle size of the sieve frame. There is no need for staff to frequently disassemble and replace filters of different mesh sizes, which reduces the work intensity and workload of staff and improves test efficiency.

[0019] 3. The photovoltaic dust quantitative scattering device, by arranging a receiving tray on the lower side of the vibrating screen bracket, can receive the dust that falls when the staff evenly sprinkles the dust on the screen frame, so as to avoid the dust from falling on the solar photovoltaic panel before the test starts. After the test starts, the staff removes the receiving tray through the second electric push rod and controls the operation of the vibration motor to scatter the dust on the surface of the photovoltaic panel at an appropriate vibration frequency and amplitude along with the movement of the continuously shaking screen frame, thereby improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 For the present invention Figure 1 A partial enlarged structural diagram of the middle part;

[0022] Figure 3 A top view of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the screen frame of the present invention;

[0024] Figure 5 For the present invention Figure 4 A schematic diagram of the partially enlarged structure of the middle B part;

[0025] Figure 6 It is a partial cross-sectional structural schematic diagram of the material conveying pipe of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the top plate of the present invention.

[0027] In the figure: 1. vibration screen bracket; 2. shock-absorbing spring member; 3. screen frame; 301. left bar; 302. right bar; 303. dust baffle; 304. pressure strip A; 305. pressure strip B; 306. first filter; 4. motor bracket; 401. vibration motor; 5. top plate; 501. feed inlet; 502. cover plate; 6. connecting plate; 601. first electric push rod; 602. second filter; 7. first positioning plate; 8. fixing plate; 801. adjusting screw; 802. second positioning plate; 9. roller; 10. solar photovoltaic panel; 11. second electric push rod; 12. receiving tray; 121. discharge pipe; 13. conveying pipe; 131. driving motor; 132. conveying shaft; 133. spiral conveying blade. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components; for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example: Refer to Figure 1 , Figure 3 and Figure 4 A photovoltaic dust quantitative scattering device includes a vibrating screen bracket 1, a positioning component for fixing to a solar photovoltaic panel 10 is arranged at the bottom of the vibrating screen bracket 1, shock-absorbing spring components 2 are arranged at the four corners of the vibrating screen bracket 1, and a screen frame 3 is connected to the end of the shock-absorbing spring component 2 away from the vibrating screen bracket 1, motor brackets 4 are arranged on both sides of the screen frame 3, and a vibration motor 401 is arranged on the motor bracket 4.

[0032] Specifically, the vibration screen bracket 1 is fixed to the solar photovoltaic panel 10 through the positioning assembly, and is floatingly flexibly connected to the screen frame 3 through the shock-absorbing spring member 2, so that the vibration of the vibration motor 401 can act entirely on the screen frame 3. When the screen frame 3 shakes, it plays a role in dispersing dust and controlling the dust particle size, and scatters the dust to the surface of the solar photovoltaic panel 10, effectively solving the problem of high work intensity for the staff and avoiding the long dust deposition period of the outdoor solar photovoltaic panel 10 in the actual state, thereby improving the test efficiency.

[0033] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5 As a preferred technical solution of the present invention, the screen frame 3 includes a left bar 301, a right bar 302, a dust baffle 303 and a first filter screen 306. A pressure strip A304 is fixed on the dust baffle 303. The left bar 301 and the right bar 302 are both connected to the pressure strip A304. The left bar 301, the right bar 302 and the dust baffle 303 are welded to form an integral frame. The first filter screen 306 is fixed between the pressure strip A304 and the overall frame and between the pressure strip B305 and the overall frame by screws. The bottom walls of the pressure strips A304 and B305 are in the same horizontal plane.

[0034] Specifically, the screen frame 3 is formed by welding a left bar 301 and a right bar 302 bent into a Z-shaped structure from sheet metal and an ash baffle 303 bent into a right-angle structure from sheet metal into an integral frame structure. The structure is simple and has good workability. A bracket for a vibration motor 401 can be installed on the upper part, and the four corners can be connected to the shock-absorbing spring parts 2 to form a floating flexible structure. The pressure strip A304, the pressure strip B305, and the first filter 306 are fastened to the frame by multiple screws and nuts to form a screen frame 3, which makes it convenient to replace the first filter 306 with different mesh sizes.

[0035] Reference Figure 1 and Figure 7 As a preferred technical solution of the present invention, the heights of the left bar 301, the right bar 302 and the ash baffle 303 are consistent, and a top plate 5 is fixed on the top of the overall frame after the left bar 301, the right bar 302 and the ash baffle 303 are welded; specifically, by arranging the top plate 5 on the upper side of the screen frame 3, dust is prevented from scattering when the screen frame 3 shakes, thereby effectively ensuring the cleanliness of the test environment.

[0036] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5 As a preferred technical solution of the present invention, a connecting plate 6 is provided at the bottom of the left bar 301 and the right bar 302, and a first electric push rod 601 is provided on each connecting plate 6. A second filter 602 is provided between the two first electric push rods 601, and the second filter 602 is placed on the lower side of the first filter 306 and is slidably connected to the first filter 306.

[0037] Furthermore, the first filter screen 306 and the second filter screen 602 are both made of nylon, polyethylene or metal.

[0038] Specifically, a second filter 602 is arranged at the lower side of the first filter 306, and the first electric push rod 601 adjusts the position of the second filter 602 according to the dust particle size required for the test, so that the first filter 306 and the second filter 602 are fitted and staggered, thereby adjusting the overall mesh size of the screen frame 3. There is no need for staff to frequently disassemble and replace filters of different mesh sizes, thereby reducing the work intensity and workload of staff and improving test efficiency.

[0039] Reference Figure 1 and Figure 2 As a preferred technical solution of the present invention, the positioning assembly includes a first positioning plate 7 fixedly mounted on the bottom of the vibrating screen bracket 1, a fixed plate 8 fixedly mounted on the side of the vibrating screen bracket 1 away from the first positioning plate 7, an adjusting screw 801 threadedly connected to the fixed plate 8, and a second positioning plate 802 arranged at the end of the adjusting screw 801; specifically, two positioning plates are arranged, which are respectively clamped at the upper and lower edges of the solar photovoltaic panel 10, and the upper first positioning plate 7 is clamped with the upper edge of the solar photovoltaic panel 10, and then the lower second positioning plate 802 is fastened to the lower edge of the solar photovoltaic panel 10 by rotating the adjusting screw 801, thereby playing a role in preventing loosening.

[0040] Reference Figure 1 and Figure 2 As a preferred technical solution of the present invention, the first positioning plate 7 and the second positioning plate 802 have the same structure and are both configured as L-shaped plates. The first positioning plate 7 and the second positioning plate 802 are both provided with rollers 9 that are slidably connected to the solar photovoltaic panel 10 through connecting parts; specifically, in order to facilitate the device to continuously perform dusting operations on multiple solar photovoltaic panels 10 on a longer photovoltaic array and reduce the troublesome operation of removing the device from the solar photovoltaic panel 10 and then installing it, small rollers 9 can be installed on the inner sides of the two right-angled surfaces of the positioning plates and in contact with the edges of the solar photovoltaic panel 10, so that the device can be pushed to move on the photovoltaic array, reducing the work intensity of personnel.

[0041] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 As a preferred technical solution of the present invention, a second electric push rod 11 is fixedly provided on the outside of the vibrating screen bracket 1, and the second electric push rod 11 is connected to a receiving tray 12 placed horizontally with the vibrating screen bracket 1 through a connecting plate. A discharge pipe 121 is provided at the bottom of the receiving tray 12, and the end of the discharge pipe 121 away from the receiving tray 12 is connected to a feed pipe 13, and a feed pipe assembly is provided on the feed pipe 13, and the end of the feed pipe 13 away from the discharge pipe 121 is placed on the upper side of the top plate 5.

[0042] Furthermore, the feed pipe 13 includes two sections of pipe body and a guide pipe for connecting the two sections of pipe body. Two groups of feed components are provided and are respectively placed on the two sections of pipe body. The feed component includes a driving motor 131 fixed on the pipe body. The output shaft of the driving motor 131 is connected to a conveying shaft 132 rotating in the pipe body. The conveying shaft 132 is provided with a spiral conveying blade 133 for conveying dust.

[0043] Furthermore, a feed port 501 is provided at the top of the top plate 5 , and a cover plate 502 is hingedly connected to the feed port 501 .

[0044] Specifically, a receiving tray 12 is provided at the lower side of the vibrating screen support 1, so that when the staff sprinkles dust evenly on the screen frame 3, the receiving tray 12 can receive the dust that falls at this time, so as to avoid dust from being sprinkled on the solar photovoltaic panel 10 before the test starts, resulting in the dust falling on the solar photovoltaic panel 10 not being arranged according to the test requirements. As the dust is sprinkled evenly on the screen frame 3, the dust will no longer fall when the screen frame 3 is not vibrating. After the test starts, the staff removes the receiving tray 12 through the second electric push rod 11, so that the receiving tray 12 moves away from the lower side of the screen frame 3, and controls the vibration electric push rod 11 to prevent the dust from falling on the solar photovoltaic panel 10 before the test starts. The machine 401 is running, so that the dust moves with the continuously shaking screen frame 3 at an appropriate vibration frequency and amplitude, and the dust is scattered on the surface of the photovoltaic panel to ensure the accuracy of the test results; when the next solar photovoltaic panel 10 is dusted, the driving motor 131 is controlled to run, and the conveying shaft 132 of the driving motor 131 drives the spiral conveying blade 133 to rotate, so that the spiral conveying blade 133 is connected to the dust received by the material tray 12 for conveying, and the dust in the conveying is spread on the screen frame 3 through the feed port 501 at the top plate 5. After the dusting is completed, the feed port 501 is blocked by the cover plate 502.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic dust quantitative spreading device, comprising a vibrating screen support (1), characterized in that: A positioning assembly for fixing to a solar photovoltaic panel (10) is arranged at the bottom of the vibration screen support (1), shock-absorbing spring components (2) are arranged at the four corners of the vibration screen support (1), a screen frame (3) is connected to one end of the shock-absorbing spring component (2) away from the vibration screen support (1), motor supports (4) are arranged on both sides of the screen frame (3), and a vibration motor (401) is arranged on the motor support (4).

2. A photovoltaic dust quantitative spreading device according to claim 1, characterized in that: The screen frame (3) comprises a left bar (301), a right bar (302), an ash baffle (303) and a first filter screen (306); a pressure strip A (304) is fixedly provided on the ash baffle (303); the left bar (301) and the right bar (302) are both connected to the pressure strip A (304); the left bar (301), the right bar (302) and the ash baffle (303) are welded to form an integral frame; the first filter screen (306) is fixedly provided between the pressure strip A (304) and the integral frame and between the pressure strip B (305) and the integral frame by screws; the bottom walls of the pressure strip A (304) and the pressure strip B (305) are in the same horizontal plane.

3. A photovoltaic dust quantitative spreading device according to claim 2, characterized in that: The left side bar (301), the right side bar (302) and the dust baffle (303) are of the same height, and a top plate (5) is fixedly arranged on the top of the overall frame after the left side bar (301), the right side bar (302) and the dust baffle (303) are welded.

4. A photovoltaic dust quantitative spreading device according to claim 3, characterized in that: A connecting plate (6) is provided at the bottom of the left bar (301) and the right bar (302), a first electric push rod (601) is provided on each connecting plate (6), a second filter (602) is provided between the two first electric push rods (601), and the second filter (602) is placed on the lower side of the first filter (306) and is slidably connected to the first filter (306).

5. A photovoltaic dust quantitative spreading device according to claim 4, characterized in that: The first filter screen (306) and the second filter screen (602) are both made of nylon, polyethylene or metal.

6. A photovoltaic dust quantitative spreading device according to claim 1, characterized in that: The positioning assembly comprises a first positioning plate (7) fixedly mounted on the bottom of the vibrating screen support (1), a fixing plate (8) fixedly mounted on a side of the vibrating screen support (1) away from the first positioning plate (7), an adjusting screw (801) threadedly connected to the fixing plate (8), and a second positioning plate (802) arranged at the end of the adjusting screw (801).

7. A photovoltaic dust quantitative spreading device according to claim 6, characterized in that: The first positioning plate (7) and the second positioning plate (802) have the same structure and are both configured as L-shaped plates. The first positioning plate (7) and the second positioning plate (802) are both provided with rollers (9) slidably connected to the solar photovoltaic panel (10) via connecting parts.

8. A photovoltaic dust quantitative spreading device according to claim 3, characterized in that: A second electric push rod (11) is fixedly arranged on the outside of the vibration screen support (1); the second electric push rod (11) is connected to a receiving tray (12) placed horizontally with the vibration screen support (1) via a connecting plate; a discharge pipe (121) is arranged at the bottom of the receiving tray (12); an end of the discharge pipe (121) away from the receiving tray (12) is connected to a feed pipe (13); a feed pipe assembly is arranged on the feed pipe (13); an end of the feed pipe (13) away from the discharge pipe (121) is placed on the upper side of the top plate (5).

9. A photovoltaic dust quantitative spreading device according to claim 8, characterized in that: The material conveying pipe (13) comprises two sections of pipe bodies and a material guide pipe for connecting the two sections of pipe bodies. The material conveying components are provided in two groups and are respectively placed on the two sections of pipe bodies. The material conveying components include a driving motor (131) fixed on the pipe body. The output shaft of the driving motor (131) is connected to a conveying shaft (132) rotating in the pipe body. The conveying shaft (132) is provided with a spiral conveying blade (133) for conveying dust.

10. A photovoltaic dust quantitative spreading device according to claim 9, characterized in that: A feed opening (501) is provided at the top of the top plate (5), and a cover plate (502) is hingedly connected to the feed opening (501).

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