Water cutting air-drying device

Abstract

The utility model belongs to the technical field of solar cell production equipment, and discloses a water cutting air-drying device which comprises an air-drying groove and an air knife assembly. The air knife assemblies are fixedly arranged at the bottom of the air drying groove in an array mode, each air knife assembly comprises two air knives which are bilaterally symmetrical and arranged at intervals, each air knife is provided with a plurality of air outlets, the air outlets are distributed in the length direction of the air knives at intervals, the air outlets of the two air knives are oppositely arranged, and the air outlet angle range of the air outlets is 5-10 degrees. The two air knives can blow air to the two faces of the workpiece piece at the same time, the air blowing amount of the air knife assembly to the two faces of the workpiece piece is consistent, and the workpiece piece is prevented from being broken or cracked in the blow-drying process. The air knife is fixedly mounted, so that the air outlet angle can be fixed, the angle of the air knife does not need to be adjusted, and the mounting is simple; and the air outlet angle is 5-10 degrees and is in a better air blowing angle range, so that the air blowing effect on the workpiece sheets is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cell production equipment, in particular to a water-cutting air-drying device. Background Art

[0002] Solar cells are devices that convert light energy directly into electrical energy through the photoelectric effect or photochemical effect. When sunlight hits a semiconductor, part of it is reflected by the surface, and the rest is absorbed or transmitted by the semiconductor; some of the absorbed photons turn into heat, while others collide with the atomic valence electrons that make up the semiconductor to generate electron-hole pairs. In this way, light energy is converted into electrical energy in the form of electron-hole pairs.

[0003] In the production process of solar cells, the cells need to undergo appropriate chemical reactions with some different chemical solutions. In order to prevent the chemical solution in the previous process from entering the next process, the cells need to be cleaned and dried after each chemical reaction. In particular, in the wet process, the cells need to be cleaned and dried to facilitate the normal operation of the subsequent process and the collection of the cells.

[0004] At present, conventional solar cell drying methods usually use air knife drying. However, the air knife of existing air knife drying devices often has poor drying effect on silicon wafers due to the air knife blowing angle problem; and the inconsistent air volume of the air knife makes the solar cell easy to break during the drying process, and the violent swing during the drying process causes silicon wafer fragments and hidden cracks.

[0005] Therefore, it is urgent to propose a water-cut air-drying device to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a water-cut air-drying device, which can prevent workpieces from being broken or cracked during the drying process; the air outlet angle is fixed, the blowing effect on the workpiece is good, and there is no need to adjust the angle of the wind knife, and the installation is simple.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] A water-cut air-drying device, comprising:

[0009] Air drying tank;

[0010] A wind knife assembly is fixedly arranged in an array at the bottom of the air-drying trough. The wind knife assembly includes two wind knives that are symmetrical and spaced apart. A plurality of air outlets are arranged on the wind knife. The air outlets are spaced apart along the length direction of the wind knife. The air outlets of the two wind knives are arranged relatively to each other, and the air outlet angle range of the air outlet is 5 degrees to 10 degrees.

[0011] As an optional technical solution of the water-cut air-drying device, the interval between two air knives in the air knife assembly ranges from 80mm to 250mm.

[0012] As an optional technical solution for a water-cut air-drying device, the air knife includes a blade body and a limit block, the blade body is hollowed out, the air outlet is arranged on the side wall of the blade body, the limit block is provided with a through hole, and one end of the blade body is fixedly arranged in the through hole; the air-drying groove includes a groove bottom plate, the groove bottom plate is provided with a first mounting hole that penetrates the groove bottom plate, and the limit block is fixedly arranged on the groove bottom plate at least partially through the first mounting hole.

[0013] As an optional technical solution for the water-cutting and air-drying device, the blade body and the limiting block are an integrated structure.

[0014] As an optional technical solution for the water-cut air-drying device, the limit block includes a first limit portion and a second limit portion, the projection area of ​​the first limit portion in the vertical direction is larger than the projection area of ​​the second limit portion in the vertical direction, the outer wall of the second limit portion is provided with a thread, the second limit portion passes through the first mounting hole and is fixed to the groove bottom plate by a nut, and the first limit portion abuts against the groove bottom plate.

[0015] As an optional technical solution of the water-cut air-drying device, the water-cut air-drying device also includes a mounting seat, which is fixed to the bottom plate of the groove, and a second mounting hole is provided on the mounting seat that penetrates the mounting seat. The limit block passes through the second mounting hole and the first mounting hole in sequence, and is fixed to the bottom of the air-drying groove by a nut.

[0016] As an optional technical solution for the water-cut air-drying device, the water-cut air-drying device also includes an air pipe tee, the main branch of the air pipe tee is connected to the air supply pipe, and the two branches of the air pipe tee are respectively connected to the two air knives in the air knife assembly near the bottom of the air-drying groove.

[0017] As an optional technical solution for the water-cut air-drying device, the water-cut air-drying device includes a plurality of the air pipe tee pieces, each of the air pipe tee pieces corresponds to a group of the air knife assemblies and the air pipes, and a plurality of groups of the air pipe inlets are connected to the main air intake pipe.

[0018] As an optional technical solution for the water-cut air-drying device, a gas flow meter is provided at the inlet end of the gas supply pipe.

[0019] As an optional technical solution for the water-cut air-drying device, the water-cut air-drying device also includes a shell, the air-drying tank is arranged in the shell, the gas supply pipe is routed from the bottom of the air-drying tank, and is connected to the corresponding gas flow meter through a wire trough, and the gas flow meter is located at the first maintenance door on the side of the shell.

[0020] Beneficial effects of the utility model:

[0021] The water-cut air-drying device provided by the utility model includes an air-drying tank and an air knife assembly. The air knife assembly is arranged at the bottom of the air-drying tank, and the workpiece to be dried is dried in the air-drying tank. The two air knives in the air-drying assembly are symmetrical and spaced apart, and the air outlets on the two air knives are relatively arranged, so that the two air knives can blow air to both sides of the workpiece at the same time, so that the air volume of the wind knife assembly on both sides of the workpiece is consistent, thereby avoiding the workpiece from being broken or cracked during the drying process. The fixed installation of the air knife can fix the air outlet angle, and there is no need to adjust the angle of the air knife, which is simple to install; and the air outlet angle is 5 degrees to 10 degrees, which is a better blowing angle range, thereby improving the blowing effect on the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the water-cut air-drying device provided by an embodiment of the utility model;

[0023] Figure 2 It is a top view of the air-drying slot and the air knife assembly in the water-cut air-drying device provided in the embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the air knife in the water-cut air-drying device provided in an embodiment of the utility model;

[0025] Figure 4 yes Figure 2 A partial enlarged view at point A.

[0026] In the figure:

[0027] 10. Workpiece piece; 100. Shell; 110. First maintenance door; 120. Second maintenance door; 200. Air drying tank; 300. Air knife assembly; 310. Air knife; 311. Blade; 312. Limit block; 313. First limit part; 314. Second limit part; 301. Air outlet; 400. Mounting seat; 500. Air pipe tee; 510. Air supply pipe; 520. Main air inlet pipe; 600. Gas flow meter. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] The water-cut air-drying device provided in this embodiment can prevent the workpiece 10 from being broken or cracked during the drying process; the air outlet angle is fixed, the air blowing effect on the workpiece 10 is good, and the wind knife 310 does not need to be adjusted in angle, and the installation is simple. The workpiece 10 in this embodiment is a sheet plate, preferably a solar cell.

[0033] Specific as Figures 1 to 4As shown, the water-cut air-drying device includes an air-drying slot 200 and an air knife assembly 300. The air-drying slot 200 is located in the housing 100. The air knife assembly 300 is fixedly arranged at the bottom of the air-drying slot 200 in an array form. The air knife assembly 300 includes two air knives 310 that are symmetrical and spaced apart. A plurality of air outlets 301 are arranged on the air knife 310. The air outlets 301 are spaced apart along the length direction of the air knife 310. The air outlets 301 of the two air knives 310 are arranged relatively, and the air outlet angle range of the air outlet 301 is 5 degrees to 10 degrees. By way of example, the air outlet angle of the air outlet 301 can be 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees or 10 degrees, etc. This embodiment does not limit this. The air outlet 301 and its air outlet angle can be opened according to actual needs.

[0034] It is worth noting that Figure 4 The top view of the wind knife 301 specifically illustrates the air outlet angle. The air outlet angle of the air outlet 301 is based on the horizontal line as the reference line. The air outlet 301 is tilted upward or downward at a preset angle. The angle between the reference line and the air outlet 301 is the air outlet angle.

[0035] Based on the above design, the air knife assembly 300 is arranged at the bottom of the air drying tank 200, and the workpiece sheet 10 to be dried can be dried in the air drying tank 200. The air knife assembly 300 includes two air knives 310 that are symmetrical and spaced apart, and the air outlets 301 of the two air knives 310 are arranged relatively, so that the workpiece sheet 10 is placed between the two air knives 310, and the two air knives 310 can blow air on both sides of the workpiece sheet 10 at the same time, so that the air volume of the air knife assembly 300 on both sides of the workpiece sheet 10 is consistent, and the workpiece sheet 10 is prevented from being broken or cracked during the drying process. The air knife 310 is fixedly installed in the air drying tank 200, so that the air outlet angles of the two air knives 310 can be fixed, and the angle of the air knife 310 does not need to be adjusted, and the air knife 310 is easy to install; and the air outlet angle of the air knife 310 is 5 degrees to 10 degrees, which is a better blowing angle range, and improves the blowing effect on the workpiece sheet 10.

[0036] In a preferred embodiment, each wind knife 310 has only one row of air outlets 301 , and the air outlet angles of the air outlets 301 of the two wind knives 310 are exactly the same, further improving the consistency of the effect of the wind knife assembly 300 blowing air on both sides of the workpiece 10 .

[0037] Further, the distance between the two wind knives 310 is 80 mm-250 mm. Within the above-mentioned air outlet angle range, this distance range has a better blowing effect on the workpiece 10. Exemplarily, the distance between the two wind knives 310 can be 80 mm, 120 mm, 160 mm, 200 mm, 240 mm or 250 mm, etc. This embodiment does not limit this and can be set according to actual needs.

[0038] In order to facilitate the installation and fixation of the wind knife 310, in some embodiments, the wind knife 310 includes a blade body 311 and a limit block 312. The interior of the blade body 311 is hollow. Preferably, the blade body 311 is a tubular structure, the air outlet 301 is arranged on the side wall of the blade body 311, and the limit block 312 is provided with a through hole. One end of the blade body 311 is fixedly arranged in the through hole; the air-drying slot 200 includes a slot bottom plate, and a first mounting hole that penetrates the slot bottom plate is provided on the slot bottom plate. The limit block 312 at least partially passes through the first mounting hole and is fixedly arranged on the slot bottom plate.

[0039] Optionally, the blade body 311 and the limiting block 312 are an integrated structure.

[0040] Optionally, the blade body 311 is welded to the limiting block 312 .

[0041] Furthermore, the limit block 312 includes a first limit portion 313 and a second limit portion 314, the projection area of ​​the first limit portion 313 in the vertical direction is larger than the projection area of ​​the second limit portion 314 in the vertical direction, the outer wall of the second limit portion 314 is provided with a thread, the second limit portion 314 passes through the first mounting hole and is fixed to the groove bottom plate by a nut, and the first limit portion 313 abuts against the groove bottom plate, thereby increasing the installation stability of the wind knife 310 and realizing the detachable connection of the wind knife 310, so that the wind knife 310 is easy to disassemble and assemble.

[0042] It should be noted that the cross-sectional shape of the first mounting hole matches the cross-sectional shape of the second limiting portion 314 .

[0043] Furthermore, the water-cut air-drying device further includes a mounting seat 400, which is fixed to the bottom plate of the tank, and a second mounting hole penetrating the mounting seat 400 is provided on the mounting seat 400, and the limiting block 312 passes through the second mounting hole and the first mounting hole in sequence, and is fixed to the bottom of the air-drying tank 200 by a nut. The mounting seat 400 is provided to further limit the limiting block 312, thereby increasing the installation stability of the air knife 310.

[0044] Likewise, it should be noted that the vertical projection area of ​​the second mounting hole partially overlaps with that of the first mounting hole, and the cross-sectional shape of the second mounting hole matches the cross-sectional shape of the first limiting portion 313. During installation, the first limiting portion 313 of the limiting block 312 is at least partially located in the second mounting hole.

[0045] Continue as Figure 1As shown, the water-cut air-drying device also includes an air pipe tee 500, the main branch of which is connected to the air pipe 510, and the two branches of which are respectively connected to the two air knives 310 in the air knife assembly 300 near the bottom of the air-drying groove 200. The air pipe tee 500 divides the gas in the air pipe 510 into two parts and supplies air to the two air knives 310 in the same group of air knife assemblies 300, ensuring that the air output of the two air knives 310 in the same group of air knives 310 is consistent, thereby increasing the blowing effect on both sides of the workpiece 10. It should be noted that the end of the blade 311 away from the limit block 312 is in a closed state, so that the gas is blown out only from the air outlet 301 to avoid gas leakage.

[0046] Furthermore, the water-cutting and air-drying device includes a plurality of air pipe tee fittings 500, each air pipe tee fitting 500 corresponds to a group of air knife assemblies 300 and an air supply pipe 510, and the inlets of the plurality of air supply pipes 510 are connected to the main air intake pipe 520, and the gas is distributed from the same main air intake pipe 520 to each air supply pipe 510 and then enters each group of air knife assemblies 300.

[0047] Furthermore, a gas flow meter 600 is provided at the inlet end of each gas pipe 510 to quantitatively control the gas flow in the gas pipe 510 of each group of air knife assemblies 300 to ensure a consistent drying effect on each workpiece 10 .

[0048] Continue as Figure 1 As shown, the water-cut air-drying device also includes a housing 100, an air-drying tank 200 is arranged in the housing, and the gas pipe 510 is routed from the bottom of the air-drying tank 200 and connected to the corresponding gas flow meter 600 through the wire groove, and the gas flow meter 600 is located at the first maintenance door 110 on the side of the housing 100. Routing from the bottom of the air-drying tank 200 and setting the wire groove prevents the gas pipe 510 from being entangled or scratched, and also makes the layout inside the housing 100 beautiful. The gas flow meter 600 is located at the first maintenance door 110 on the side of the housing 100, which is convenient for adjusting the air volume and maintenance.

[0049] The housing 100 of the water-cut air-drying device is also provided with a second maintenance door 120 , which is located on the opposite side of the first maintenance door 110 and is used for maintaining the gas pipeline 510 line.

[0050] Continue as Figure 1 As shown, the water-cutting and air-drying device also includes a mounting box, and the gas flow meters 600 on the gas pipes 510 of the multiple groups of air knife assemblies 300 are all located in the mounting box.

[0051] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A water-cut air-drying device, characterized in that: include: Air drying tank (200); A wind knife assembly (300), wherein the wind knife assembly (300) is fixedly arranged at the bottom of the air-drying trough (200) in an array form, and the wind knife assembly (300) includes two wind knives (310) that are symmetrical and spaced apart from each other, and a plurality of air outlets (301) are arranged on the wind knife (310), and the air outlets (301) are spaced apart along the length direction of the wind knife (310), and the air outlets (301) of the two wind knives (310) are arranged opposite to each other, and the air outlet angle range of the air outlet (301) is 5 degrees to 10 degrees.

2. The water-cut air-drying device according to claim 1, characterized in that: The interval between the two wind knives (310) in the wind knife assembly (300) ranges from 80 mm to 250 mm.

3. The water-cut air-drying device according to claim 1, characterized in that: The wind knife (310) comprises a blade body (311) and a limiting block (312); the blade body (311) is hollowed out; the air outlet (301) is arranged on the side wall of the blade body (311); the limiting block (312) is provided with a through hole; one end of the blade body (311) is fixedly arranged in the through hole; the air-drying slot (200) comprises a slot bottom plate; a first mounting hole penetrating the slot bottom plate is provided on the slot bottom plate; the limiting block (312) is fixedly arranged on the slot bottom plate by at least partially passing through the first mounting hole.

4. The water-cut air-drying device according to claim 3, characterized in that: The blade body (311) and the limiting block (312) are an integrated structure.

5. The water-cut air-drying device according to claim 3, characterized in that: The limiting block (312) comprises a first limiting portion (313) and a second limiting portion (314); a projection area of ​​the first limiting portion (313) in the vertical direction is larger than a projection area of ​​the second limiting portion (314) in the vertical direction; a thread is arranged on an outer wall of the second limiting portion (314); the second limiting portion (314) passes through the first mounting hole and is fixed to the groove bottom plate by a nut; and the first limiting portion (313) abuts against the groove bottom plate.

6. The water-cut air-drying device according to claim 3, characterized in that: The water-cut air-drying device also includes a mounting seat (400), the mounting seat (400) is fixed on the bottom plate of the groove, and a second mounting hole is provided on the mounting seat (400) that passes through the mounting seat (400), and the limit block (312) passes through the second mounting hole and the first mounting hole in sequence, and is fixed to the bottom of the air-drying groove (200) by a nut.

7. The water-cut air-drying device according to claim 1, characterized in that: The water-cut air-drying device also includes an air pipe tee (500), a main branch of the air pipe tee (500) is connected to an air supply pipe (510), and two branches of the air pipe tee (500) are respectively connected to two air knives (310) in the air knife assembly (300) near the bottom of the air-drying tank (200).

8. The water-cut air-drying device according to claim 7, characterized in that: The water-cutting and air-drying device comprises a plurality of air pipe tee pieces (500), each of the air pipe tee pieces (500) corresponds to a group of the air knife assembly (300) and the air supply pipe (510), and the inlets of the plurality of groups of the air supply pipes (510) are connected to the main air intake pipe (520).

9. The water-cut air-drying device according to claim 8, characterized in that: A gas flow meter (600) is provided at the inlet end of each gas delivery pipe (510).

10. The water-cut air-drying device according to claim 9, characterized in that: The water-cut air-drying device also includes a shell (100), the air-drying tank (200) is arranged in the shell, the gas supply pipe (510) is routed from the bottom of the air-drying tank (200), and is connected to the corresponding gas flow meter (600) through a wire trough, and the gas flow meter (600) is located at the first maintenance door (110) on the side of the shell (100).

Images