CN219985535U

CN219985535U - Solar cell cleaning mechanism

Info

Publication number: CN219985535U
Application number: CN202321408806.5U
Authority: CN
Inventors: 胡朝霞; 袁定胜; 唐浩林; 任志宇; 袁黎明; 王晗
Original assignee: Foshan Gaoke Hechuang Technology Co ltd
Current assignee: Foshan Gaoke Hechuang Technology Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-11-10
Anticipated expiration: 2033-06-05

Abstract

The utility model discloses a solar cell cleaning mechanism, which comprises a machine case, a spray gun and a cleaning pool, wherein a plurality of support grids are arranged in the machine case, the support grids are arranged at intervals along the vertical direction, and a filter screen is arranged at the bottom of the machine case; the spray guns are rotatably arranged on two sides of the case, the spray guns are positioned above and below the supporting grid, a plurality of spray guns in the same row are arranged, and the spray range of all the spray guns can cover the inner space of the case; the cleaning pool is arranged below the machine case, a water inlet is formed in the upper portion of the cleaning pool, the water inlet is arranged below the filter screen, the filter screen covers the cleaning pool, a circulating pump machine is arranged in the cleaning pool, and the cleaning pool is provided with a water outlet pipe which is communicated with the spray guns. Rotatable spray gun can wash a sectorial interval at abluent process, and the cleaning region of a plurality of spray guns covers the inside of whole quick-witted case, and then can wash a plurality of solar wafer of placing on supporting the grid from a plurality of directions, improves abluent cleanliness and efficiency.

Description

Solar cell cleaning mechanism

Technical Field

The utility model relates to the technical field of solar cell processing, in particular to a solar cell cleaning mechanism.

Background

Solar cells are classified into crystalline silicon type and amorphous silicon type, wherein the crystalline silicon type cells may be classified into single crystal cells and polycrystalline cells. The processing of the solar cell slice is divided into silicon slice detection, surface texturing and acid washing, diffusion sintering, dephosphorization silicon glass, plasma etching and acid washing, antireflection film plating, screen printing and rapid sintering. After the acid washing, the solar cell needs to be cleaned, and the acid liquor on the upper part of the solar cell is washed clean.

In the prior art, the utility model patent with the application number of CN201921853033.5 discloses a solar cell processing and cleaning device, and solves the defect that the bottom surface of a solar cell is not thoroughly cleaned in the prior art, and the solar cell processing and cleaning device comprises a box body and a netlike rotating frame, wherein an organic box is fixed on the box body, a booster pump is fixed on the box body, an output end of the booster pump is connected with a water collecting pipe horizontally arranged at the lower side of the box body, a spray head is arranged at the lower side of the water collecting pipe, the rotating frame is rotationally connected inside the box body, one end of the upper side of the rotating frame is provided with a frame cover hinged with the rotating frame, the frame cover is of a netlike structure, the free end of the frame cover is connected with the rotating frame through a lock catch, and a vertical interval sleeve is fixed at the upper side of the rotating frame. In this technical scheme, come to wash solar wafer through the shower nozzle that is located the top, but this kind of cleaning method can only wash wherein one side, if need all wash two sides, then need artifical turn over, consuming time and consuming power, and wash inadequately.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a solar cell cleaning mechanism which can improve the cleaning efficiency of solar cells.

According to the solar cell cleaning mechanism, the solar cell cleaning mechanism comprises a machine case, a spray gun and a cleaning pool, wherein a plurality of support grids are arranged in the machine case, the support grids are arranged at intervals along the vertical direction, and a filter screen is arranged at the bottom of the machine case; the spray guns are rotatably arranged on two sides of the case, the spray guns are positioned above and below the supporting grid, a plurality of spray guns in the same row are arranged, and the spraying range of all the spray guns can cover the inner space of the case; the cleaning tank is arranged below the machine case, a water inlet is arranged above the cleaning tank, the water inlet is arranged below the filter screen, the filter screen covers the cleaning tank, a circulating pump machine is arranged in the cleaning tank, a water outlet pipe is arranged in the cleaning tank, and the water outlet pipe is communicated with a plurality of spray guns.

The solar cell cleaning mechanism provided by the embodiment of the utility model has at least the following beneficial effects: rotatable spray gun can wash a sectorial interval at abluent process, and the cleaning region of a plurality of spray guns covers the inside of whole quick-witted case, and then can wash a plurality of solar wafer of placing on supporting the grid from a plurality of directions, improves abluent cleanliness and efficiency.

According to some embodiments of the utility model, a filter is arranged in the cleaning tank, the filter divides the interior of the cleaning tank into a front liquid cavity and a rear liquid cavity, the filter screen is arranged above the front liquid cavity, the circulating pump is arranged in the rear liquid cavity, and the water outlet pipe is connected to the rear liquid cavity.

According to some embodiments of the utility model, the filter screen has a filtration accuracy of 5 microns and the filter has a filtration accuracy of 1 micron.

According to some embodiments of the utility model, an electronic pH meter is arranged in the rear liquid cavity, the front liquid cavity is connected with an acid liquid pipe and an alkali liquid pipe, the acid liquid pipe is connected with an acid liquid pool, the alkali liquid pipe is connected with an alkali liquid pool, wherein an acid liquid pump machine is arranged in the acid liquid pool, an alkali liquid pump machine is arranged in the alkali liquid pool, and the acid liquid pump machine and the alkali liquid pump machine are electrically connected with the electronic pH meter.

According to some embodiments of the utility model, the two sides of the machine case are provided with water tanks, the inner side wall of the machine case is provided with a plurality of spray pipes, the spray pipes are communicated with the water tanks, the spray pipes can be rotatably connected at one ends of the spray pipes far away from the inner side wall of the machine case, the spray pipes are communicated with the spray pipes, the water outlet pipe comprises a main pipe and two branch pipes, the main pipe is connected with the cleaning tank, one ends of the two branch pipes are respectively communicated with the two water tanks at the two sides of the machine case, and the other ends of the two branch pipes are communicated with the main pipe.

According to some embodiments of the utility model, a rotating groove is arranged at the end part of the spray pipe, one end of the spray gun is embedded into the rotating groove and is in rotating fit with the rotating groove, a water outlet is arranged at the bottom of the rotating groove, a water inlet is arranged at one end of the spray gun embedded into the rotating groove, a spraying surface is arranged at the other end of the spray gun, the spraying surface is a spherical surface protruding outwards, the water inlet and the water outlet are always corresponding, and a plurality of spraying holes are formed in the spraying surface.

According to some embodiments of the utility model, the rotary groove is arc-shaped with an angle greater than 180 degrees and less than 200 degrees in the cross section of the spray pipe, and the spray gun is embedded into one end of the rotary groove and is attached to the surface of the rotary groove.

According to some embodiments of the utility model, a surface of the end of the spray gun embedded in the rotating groove is covered with a sealant layer.

According to some embodiments of the utility model, the lance is capable of and can only swing up and down.

According to some embodiments of the utility model, the swing angle of the spray gun is 85-95 °.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic view of a solar cell cleaning mechanism according to an embodiment of the present utility model;

fig. 2 is an enlarged view of a portion a of fig. 1;

fig. 3 is a schematic diagram showing the cooperation of a spray gun and a spray pipe of the solar cell cleaning mechanism according to an embodiment of the utility model.

100. A chassis; 110. a support grid; 120. a filter screen; 130. a water tank; 200. a spray gun; 210. a water inlet; 220. spraying the surface; 221. spraying holes; 230. a sealant layer; 300. a cleaning pool; 310. a front liquid chamber; 311. a filter; 320. a rear liquid chamber; 321. a circulating pump; 322. a water outlet pipe; 3221. a main pipe; 3222. a branch pipe; 410. an alkali liquid pool; 420. an acid liquid pool; 500. a spray pipe; 510. a rotating groove; 511. a water outlet;

description of the embodiments

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 3, the solar cell cleaning mechanism according to the embodiment of the present utility model includes a case 100, a spray gun 200, and a cleaning tank 300, wherein a plurality of support grids 110 are disposed in the case 100, the plurality of support grids 110 are disposed at intervals in a vertical direction, and a filter screen 120 is disposed at the bottom of the case 100; the spray guns 200 are rotatably installed at both sides of the cabinet 100, the spray guns 200 are positioned above and below the support grid 110, a plurality of spray guns 200 are arranged in the same row, and the spray range of all spray guns 200 can cover the inner space of the cabinet 100; the cleaning tank 300 is arranged below the machine case 100, a water inlet 210 is arranged above the cleaning tank 300, the water inlet 210 is arranged below the filter screen 120, the filter screen 120 covers the cleaning tank 300, a circulating pump 321 is arranged in the cleaning tank 300, a water outlet pipe 322 is arranged in the cleaning tank 300, and the water outlet pipe 322 is communicated with the spray guns 200.

In actual use, a plurality of solar cells are firstly placed on a plurality of support grids 110 respectively, wherein the solar cells are in one-to-one correspondence with the support grids 110, the spray gun 200 is started, and the spray gun 200 is used for flushing from the upper part and the lower part of the solar cells respectively, in the process of rotating the spray gun 200, the spray gun 200 is matched, so that the flushed area can cover the inner space of the whole machine case 100, further, the solar cells placed on the support grids 110 can be cleaned without dead angles, after cleaning, sewage can enter the cleaning pool 300 through the filter screen 120, the filtered water is conveyed to the spray gun 200 again by the circulating pump 321, the automatic circulation of cleaning water is realized, and the cleaning efficiency is improved while the cost of the water is reduced.

In summary, the rotatable spray gun 200 will clean a sector-shaped section in the cleaning process, and the cleaning areas of the spray guns 200 cover the inside of the whole chassis 100, so that a plurality of solar cells placed on the support grid 110 can be cleaned from multiple directions, and the cleaning degree and efficiency are improved.

Specifically, in order to enable the sewage to be sufficiently filtered, referring to fig. 3, a filter 311 is built in the washing tank 300, the filter 311 divides the interior of the washing tank 300 into a front liquid chamber 310 and a rear liquid chamber 320, the filter screen 120 is disposed above the front liquid chamber 310, the circulation pump 321 is built in the rear liquid chamber 320, and the water outlet pipe 322 is connected to the rear liquid chamber 320. The sewage is filtered through the filter screen 120 and the filter 311 before being re-injected into the spray gun 200, thereby ensuring that the sewage is filtered. Specifically, to achieve the progressive filtering effect, the filter screen 120 has a filtering accuracy of 5 micrometers and the filter 311 has a filtering accuracy of 1 micrometer.

After the solar cell panel is cleaned, the pH value of the sewage can change, if the pH value is not adjusted and the cleaning water is directly reused for repeated cleaning, the solar cell panel is easy to damage, therefore, an electronic pH meter (not shown in the figure) is arranged in the rear liquid cavity 320, the front liquid cavity 310 is connected with an acid liquid pipe and an alkali liquid pipe, the acid liquid pipe is connected with an acid liquid tank 420, the alkali liquid pipe is connected with an alkali liquid tank 410, an acid liquid pump machine (not shown in the figure) is arranged in the acid liquid tank 420, an alkali liquid pump machine (not shown in the figure) is arranged in the alkali liquid tank 410, and the acid liquid pump machine and the alkali liquid pump machine are electrically connected with the electronic pH meter. The pH value of the liquid in the rear liquid cavity 320 is monitored in real time by utilizing an electronic pH meter, if the acidity exceeds the standard, an alkaline liquid pump is started to inject alkaline liquid, and then the pH value of the front liquid cavity 310 is adjusted, if the alkalinity exceeds the standard, the alkaline liquid pump is started to inject acidic liquid to adjust the pH value of the front liquid cavity 310, and the pH value of the liquid flowing into the rear liquid cavity 320 is ensured to meet the requirements, wherein the pH values of the acid and the alkali adjustment chemicals required by solar panels made of different materials are inconsistent, and the chemical is required to be blended according to actual requirements in actual use.

In some embodiments, referring to fig. 1, the water tank 130 is disposed at two sides of the cabinet 100, the plurality of spray pipes 500 are disposed at inner side walls of the cabinet 100, the spray pipes 500 are communicated with the water tank 130, the spray pipes 200 can be rotatably connected at one end of the spray pipes 500 away from the inner side walls of the cabinet 100, the spray pipes 200 are communicated with the spray pipes 500, the water outlet pipe 322 comprises a main pipe 3221 and two branch pipes 3222, the main pipe 3221 is connected to the cleaning tank 300, one ends of the two branch pipes 3222 are respectively communicated with the two water tanks 130 at two sides of the cabinet 100, and the other ends are communicated with the main pipe 3221. The two water tanks 130 are supplied with water through one main conduit 3221 and two branch conduits 3222, respectively, simplifying the overall structure.

It should be noted that, referring to fig. 3, a rotary groove 510 is provided at an end of the nozzle 500, one end of the spray gun 200 is embedded into the rotary groove 510 and is in running fit with the rotary groove 510, a water outlet 511 is provided at a bottom of the rotary groove 510, one end of the spray gun 200 embedded into the rotary groove 510 is provided with a water inlet 210, a spray face 220 is provided at the other end, the spray face 220 is a sphere protruding outwards, the water inlet 210 and the water outlet 511 always correspond, and the spray face 220 is provided with a plurality of spray holes 221. When the cleaning water flows to the nozzle 500, the water enters the spray gun 200 through the water outlet 511 from the water inlet 210, and the water is sprayed through the spray holes 221 of the spray surface 220 by the driving force from the circulation pump 321, thereby cleaning the solar cell.

Specifically, in the cross section of the nozzle 500, the rotation groove 510 is arc-shaped with an angle greater than 180 degrees and less than 200 degrees, and the lance 200 is fitted into one end of the rotation groove 510 to be fitted to the surface of the rotation groove 510. To ensure that the spray gun 200 does not come out of the spray pipe 500 and to ensure tightness, the surface of one end of the spray gun 200 inserted into the rotating groove 510 is covered with the sealant layer 230 in order to further ensure tightness.

In actual use, referring to fig. 1, the upper left spray gun 200 in fig. 1 shows a swinging manner of the spray gun 200 in actual operation, referring to fig. 2, the dash-dot line is a spraying direction of the spray gun 200, the spray gun 200 with a solid line and the spray gun 200 with a broken line are two limit positions where the spray gun 200 can swing, wherein the spray gun 200 can only swing up and down, and a swinging angle of the spray gun 200 is 85 ° -95 ° (such as an included angle α in fig. 1), wherein by restricting a rotation range of a single spray gun 200, a service life of a rotation structure between the spray gun 200 and the spray gun 500 is further prolonged, and a reciprocating frequency of the spray gun 200 is improved, and cleaning efficiency is improved.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A solar wafer cleaning mechanism, characterized by comprising:

the machine box (100) is internally provided with a plurality of support grids (110), the support grids (110) are arranged at intervals along the vertical direction, and a filter screen (120) is arranged at the bottom of the machine box (100);

the spray guns (200) are rotatably arranged on two sides of the machine case (100), the spray guns (200) are positioned above and below the supporting grid (110), a plurality of spray guns (200) in the same row are arranged, and the spray range of all the spray guns (200) can cover the inner space of the machine case (100);

the cleaning tank (300) is arranged below the machine case (100), a water inlet (210) is formed in the upper portion of the cleaning tank (300), the water inlet (210) is formed in the lower portion of the filter screen (120), the filter screen (120) covers the cleaning tank (300), a circulating pump (321) is arranged in the cleaning tank (300), a water outlet pipe (322) is arranged in the cleaning tank (300), and the water outlet pipe (322) is communicated with a plurality of spray guns (200).

2. The solar cell cleaning mechanism according to claim 1, wherein a filter (311) is arranged in the cleaning tank (300), the filter (311) divides the interior of the cleaning tank (300) into a front liquid cavity (310) and a rear liquid cavity (320), the filter screen (120) is arranged above the front liquid cavity (310), the circulating pump (321) is arranged in the rear liquid cavity (320), and the water outlet pipe (322) is connected to the rear liquid cavity (320).

3. The solar cell cleaning mechanism according to claim 2, wherein the filter screen (120) has a filtration accuracy of 5 micrometers and the filter (311) has a filtration accuracy of 1 micrometer.

4. The solar cell cleaning mechanism according to claim 2, wherein an electronic pH meter is arranged in the rear liquid chamber (320), the front liquid chamber (310) is connected with an acid liquid pipe and an alkali liquid pipe, the acid liquid pipe is connected with an acid liquid tank (420), the alkali liquid pipe is connected with an alkali liquid tank (410), wherein an acid liquid pump machine is arranged in the acid liquid tank (420), and an alkali liquid pump machine is arranged in the alkali liquid tank (410), and the acid liquid pump machine and the alkali liquid pump machine are electrically connected with the electronic pH meter.

5. The solar wafer cleaning mechanism according to claim 1, wherein water tanks (130) are disposed on two sides of the chassis (100), a plurality of spray pipes (500) are disposed on inner side walls of the chassis (100), the spray pipes (500) are communicated with the water tanks (130), the spray gun (200) can be rotatably connected at one end of the spray pipes (500) away from inner side walls of the chassis (100), the spray gun (200) is communicated with the spray pipes (500), the water outlet pipe (322) comprises a main pipe (3221) and two branch pipes (3222), the main pipe (3221) is connected to the cleaning tank (300), one ends of the two branch pipes (3222) are respectively communicated with the two water tanks (130) on two sides of the chassis (100), and the other ends of the two branch pipes are communicated with the main pipe (3221).

6. The solar wafer cleaning mechanism according to claim 5, wherein a rotating groove (510) is formed in an end portion of the spray pipe (500), one end of the spray gun (200) is embedded into the rotating groove (510) and is in running fit with the rotating groove (510), a water outlet (511) is formed in the bottom of the rotating groove (510), one end of the spray gun (200) is embedded into the rotating groove (510) and is provided with a water inlet (210), a spraying surface (220) is formed in the other end of the spray gun, the spraying surface (220) is a spherical surface protruding outwards, the water inlet (210) and the water outlet (511) always correspond, and the spraying surface (220) is provided with a plurality of spraying holes (221).

7. The solar cell cleaning mechanism according to claim 6, wherein the rotating groove (510) is arc-shaped with an angle greater than 180 degrees and less than 200 degrees in a cross section of the nozzle (500), and the lance (200) is fitted into one end of the rotating groove (510) and the surface of the rotating groove (510) to be attached.

8. The solar cell cleaning mechanism according to claim 7, wherein a surface of one end of the lance (200) embedded in the rotation groove (510) is covered with a sealant layer (230).

9. The solar cell cleaning mechanism according to claim 1, 5, 6, 7 or 8, wherein the spray gun (200) is capable of and only swings up and down.

10. The solar wafer cleaning mechanism according to claim 9, wherein the swing angle of the spray gun (200) is 85 ° to 95 °.