A dual-chamber industrial dust collector for photovoltaic module production

Abstract

This invention belongs to the field of dust removal technology, and specifically relates to a dual-chamber industrial dust collector for photovoltaic module production. It includes a dust collection box with two chambers (first and second) inside. Above each chamber (first) is a chamber (second), and above each chamber (second) is a shared chamber (third). Above chamber (third) is a chamber (fourth). A partition (second) is provided between chambers (first and second) and between chambers (second). Each chamber (second) contains a diversion mechanism (second), the tops of which are fixedly connected to the bottom inner wall of chamber (third). Chambers (second) can communicate with chamber (third) through the diversion mechanism (second) in its open state. This invention utilizes a dual-chamber filtration method. When one filtration chamber is cleaned and unblocked, dust can be filtered from the other filtration chamber, ensuring uninterrupted dust absorption during string welding machine operation and guaranteeing uninterrupted continuous operation of the string welding machine.

Description

Technical Field

[0001] This invention relates to the field of dust removal technology, and in particular to a dual-chamber industrial dust collector for photovoltaic module production. Background Technology

[0002] String welding machines are one of the core pieces of equipment in the traditional photovoltaic module production process. They are devices that connect individual solar cells into strings using interconnecting strips. The automatic feeding mechanism automatically feeds the welding ribbon to the main machine for processing and welding. The welding ribbon processing mechanism applies flux to the welding ribbon and automatically cuts it off. It is mainly used for string welding of monocrystalline and polycrystalline solar cells in fully automated crystalline silicon solar cell modules. It is suitable for the series welding of crystalline silicon solar cells. However, a large amount of welding fumes are generated during the welding process. The welding fumes contain a large number of harmful particulate matter. Long-term inhalation of high concentrations of welding fumes can cause welding-related occupational diseases such as pneumoconiosis.

[0003] In the existing technology, the method for treating welding fumes generated during the work process is usually to collect and discharge the dust through the ventilation openings by a fan. However, the existing dust removal equipment needs to be shut down when cleaning is required. However, the string welding machine cannot be easily stopped during operation. Therefore, a dual-chamber industrial dust collector for photovoltaic module production is proposed. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this invention proposes a dual-chamber industrial dust collector for photovoltaic module production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dual-chamber industrial dust collector for photovoltaic module production, comprising a dust collection box, wherein the dust collection box has two chambers 1 inside, a chamber 2 above each of the two chambers 1, a shared chamber 3 above the two chambers 2, and a chamber 4 above the chamber 3. A shared partition 2 is provided between the two chambers 1 and between the two chambers 2. Each of the two chambers 2 is provided with a diversion mechanism 2, the tops of which are fixedly connected to the bottom inner wall of the chamber 3. The chambers 2 can be connected to the chambers 3 through the diversion mechanism 2 in the open state. The three chambers are connected. A negative pressure fan is fixedly installed on the bottom inner wall of the fourth chamber. The air inlet of the negative pressure fan is connected to the third chamber. An exhaust port is provided on the top inner wall of the fourth chamber. A partition is provided between the second and first chambers on the same side. Two filter cartridges are fixedly installed at the bottom of the partition. A back-blowing mechanism for clearing the two filter cartridges is installed at the top of the partition. Two diversion mechanisms are provided on the outside of the dust collector. The two diversion mechanisms are connected to the same three-way pipe. The three-way pipe can be connected to the corresponding first chamber through the diversion mechanism in the open state.

[0006] Preferably, the bottom of both chamber 1 is open, and the bottom of both chamber 1 is detachably equipped with a ash hopper. One side of each chamber 1 is provided with a hopper door, and the same side of both chamber 2 is provided with the same hopper door.

[0007] Preferably, the diversion mechanism includes a rectangular box fixedly connected to the outside of the dust collector box. The rectangular box has an air inlet and an air outlet. The air outlet is connected to a chamber. A valve plate is rotatably installed inside the rectangular box. A pneumatic actuator is fixedly installed on the outside of the rectangular box. A drive shaft is provided on the pneumatic actuator. The drive shaft passes through the rectangular box and is rotatably connected to the rectangular box. The drive shaft also passes through the valve plate and is fixedly connected to the valve plate. A baffle is provided on one side inside the rectangular box. The three-way pipe has an inlet and two outlets. The two outlets are respectively connected to the air inlets on the corresponding diversion mechanism.

[0008] Preferably, the diversion mechanism two includes a rectangular air duct, a valve plate two is rotatably installed inside the rectangular air duct, a pneumatic actuator two is fixedly installed on the outside of the rectangular air duct, the pneumatic actuator two is provided with a transmission shaft two, the transmission shaft two passes through the rectangular air duct and is rotatably connected to the rectangular air duct, and the transmission shaft two passes through the valve plate two and is fixedly connected to the valve plate two.

[0009] Preferably, the partition has two circular openings, the top of the filter cylinder is open, and one side of the top opening of both filter cylinders is fixedly connected to the bottom of the partition. The two filter cylinders are coaxially arranged with their respective circular openings. The backflushing mechanism includes a compressed air tank fixedly installed on the top of the partition. The compressed air tank is provided with two connecting pipes. The connecting pipes are provided with a pulse switch air valve and a nozzle. The nozzle is located above the circular opening and is coaxially arranged with the circular opening.

[0010] Preferably, a cleaning mechanism is sleeved on the outside of the filter cylinder. The cleaning mechanism includes multiple annular brushes that are slidably sleeved on the outside of the filter cylinder. The multiple annular brushes are linearly distributed. Multiple annular brushes that are arranged in a circumferential array are fixedly installed on the outside of the annular brushes. Multiple guide rods that are arranged in a circumferential array are provided on the outside of the multiple annular brushes. The multiple guide rods pass through the corresponding connecting ears and are slidably connected to the corresponding connecting ears. The top ends of the multiple guide rods are fixedly connected to the bottom of a partition plate. The bottom ends of the multiple guide rods are fixedly installed with the same annular plate.

[0011] Preferably, springs are slidably sleeved on multiple guide rods, with the bottom end of the spring fixedly connected to the top of the annular plate and the top end of the spring fixedly connected to the corresponding connecting lug.

[0012] Preferably, multiple sleeves are slidably sleeved on the guide rod, and the two ends of the multiple sleeves are respectively fixedly connected to the corresponding connecting ears. Multiple fan-shaped ring plates are fixedly installed on the outer side of the annular brush in a circumferential array, and the multiple fan-shaped ring plates and multiple connecting ears are staggered.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This invention uses a dual-chamber filtration method. When one side of the filter chamber is cleaned and unblocked, dust can be filtered from the other side of the filter chamber, ensuring that dust absorption during the operation of the string welding machine can be carried out uninterruptedly, and ensuring that the continuous operation of the string welding machine is not affected.

[0015] 2. Through the cooperation of the back-blowing mechanism and the cleaning mechanism, the compressed air back-blowing and unblocking of the cleaning mechanism from the inside to the outside, and the compressed air ejected can also provide power for the operation of the cleaning mechanism, enabling the cleaning mechanism to clean the outside of the filter cartridge. Attached Figure Description

[0016] Figure 1 This invention presents a schematic diagram of the overall structure of a dual-chamber industrial dust collector for photovoltaic module production. Figure 1 ;

[0017] Figure 2 This invention presents a schematic diagram of the overall structure of a dual-chamber industrial dust collector for photovoltaic module production. Figure 2 ;

[0018] Figure 3 This is a side sectional view of a dual-chamber industrial dust collector for photovoltaic module production proposed in this invention;

[0019] Figure 4 This is a side sectional view of a diversion mechanism 1 in a dual-chamber industrial dust collector for photovoltaic module production proposed in this invention;

[0020] Figure 5 This is a side sectional view of the second diversion mechanism in a dual-chamber industrial dust collector for photovoltaic module production proposed in this invention;

[0021] Figure 6 This is a schematic diagram of the structure of a dual-chamber industrial dust collector for photovoltaic module production, comprising a partition plate, two filter cylinders of a back-blowing mechanism, and two cleaning mechanisms, as proposed in this invention.

[0022] Figure 7 This is a schematic diagram of the cleaning mechanism in a dual-chamber industrial dust collector for photovoltaic module production proposed in this invention.

[0023] In the diagram: 1. Dust collector box; 11. Chamber 1; 12. Chamber 2; 13. Chamber 3; 14. Chamber 4; 15. Exhaust vent; 16. Partition 1; 161. Round opening; 17. Door 1; 18. Door 2; 19. Partition 2; 2. T-shaped pipe; 21. Inlet; 22. Outlet; 3. Diverter mechanism 1; 31. Rectangular box; 32. Air inlet; 33. Air outlet; 34. Baffle; 35. Pneumatic actuator 1; 351. Drive shaft 1; 36. Valve 1. Plate 1; 4. Filter cartridge; 5. Cleaning mechanism; 51. Annular brush; 52. Connecting ear; 53. Guide rod; 54. Annular plate; 55. Spring; 56. Sleeve; 57. Sector-shaped ring plate; 6. Backflush mechanism; 61. Compressed air tank; 62. Connecting pipe; 63. Nozzle; 64. Pulse switch air valve; 7. Diverting mechanism II; 71. Rectangular air duct; 72. Pneumatic actuator II; 72. Drive shaft II; 73. Valve plate II; 8. Negative pressure fan; 9. Ash hopper. Detailed Implementation

[0024] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please refer to Figures 1-7 This invention provides a technical solution: a dual-chamber industrial dust collector for photovoltaic module production, comprising a dust collection box 1, with two chambers 11 inside the dust collection box 1, a chamber 2 12 above each of the two chambers 11, a shared chamber 3 13 above the two chambers 2 12, and a chamber 4 14 above the chamber 3 13. A shared partition 2 19 is provided between the two chambers 11 and between the two chambers 2 12. A diversion mechanism 2 7 is provided in each of the two chambers 2 12, with the tops of the two diversion mechanisms 2 7 fixedly connected to the bottom inner wall of the chamber 3 13. The chambers 2 12 can be connected to the chambers 3 13 through the diversion mechanisms 2 7 in the open state. The three chambers are connected. A negative pressure fan 8 is fixedly installed on the bottom inner wall of the fourth chamber 14. The air inlet of the negative pressure fan 8 is connected to the third chamber 13. An exhaust port 15 is provided on the top inner wall of the fourth chamber 14. A partition 16 is provided between the second chamber 12 and the first chamber 11 on the same side. Two filter cartridges 4 are fixedly installed at the bottom of the partition 16. A back-blowing mechanism 6 for clearing the two filter cartridges 4 is installed at the top of the partition 16. Two diversion mechanisms 3 are provided on the outside of the dust collector 1. The two diversion mechanisms 3 are provided with the same three-way pipe 2. The three-way pipe 2 can be connected to the corresponding chamber 11 through the diversion mechanism 3 in the open state.

[0026] Both chambers 11 have open bottoms, and both chambers 11 have detachable ash hoppers 9 installed at their bottoms. One side of chamber 11 has a door 17, and the same side of both chambers 12 has the same door 18.

[0027] The diversion mechanism 3 includes a rectangular box 31 fixedly connected to the outside of the dust collector box 1. The rectangular box 31 is provided with an air inlet 32 ​​and an air outlet 33. The air outlet 33 is connected to the chamber 11. A valve plate 36 is rotatably installed inside the rectangular box 31. A pneumatic actuator 35 is fixedly installed on the outside of the rectangular box 31. A drive shaft 351 is provided on the pneumatic actuator 35. The drive shaft 351 passes through the rectangular box 31 and is rotatably connected to the rectangular box 31. The drive shaft 351 also passes through the valve plate 36 and is fixedly connected to the valve plate 36. A baffle 34 is provided on one side inside the rectangular box 31. The three-way pipe 2 is provided with an inlet 21 and two outlets 22. The two outlets 22 are respectively connected to the air inlet 32 ​​on the corresponding diversion mechanism 3.

[0028] The diversion mechanism 2 7 includes a rectangular air duct 71, a valve plate 2 73 is rotatably installed inside the rectangular air duct 71, and a pneumatic actuator 2 72 is fixedly installed on the outside of the rectangular air duct 71. The pneumatic actuator 2 72 is provided with a transmission shaft 2 721, which passes through the rectangular air duct 71 and is rotatably connected to the rectangular air duct 71. The transmission shaft 2 721 also passes through the valve plate 2 73 and is fixedly connected to the valve plate 2 73.

[0029] Furthermore, the pneumatic actuator 35 is activated to drive the valve plate 36 to rotate via the transmission shaft 351. When all four sides of the valve plate 36 are in contact with the inner walls of the rectangular box 31, the diversion mechanism 3 can be closed. When two sides of the valve plate 36 are not in contact with the corresponding inner walls of the rectangular box 31, the diversion mechanism 3 is open.

[0030] By setting baffle 34, dust can be allowed to flow through rectangular box 31 and enter chamber 11 with the airflow. The airflow carrying dust can first hit baffle 34 before entering chamber 11. Baffle 34 can prevent dust from directly entering chamber 11 and hitting filter cartridge 4, thus providing some protection for filter cartridge 4.

[0031] When the pneumatic actuator 2 72 is started, it drives the valve plate 2 73 to rotate through the transmission shaft 2 721. When all four sides of the valve plate 2 73 are in contact with the inner walls of the rectangular box 31, the diversion mechanism 2 7 can be closed. When two sides of the valve plate 2 73 are not in contact with the corresponding inner walls of the rectangular box 31, the diversion mechanism 2 7 is in the open state.

[0032] Two circular openings 161 are provided on the partition 16. The top of the filter cylinder 4 is open. The top opening side of both filter cylinders 4 is fixedly connected to the bottom of the partition 16. The two filter cylinders 4 are coaxially arranged with the corresponding circular openings 161. The backflushing mechanism 6 includes a compressed air tank 61 fixedly installed on the top of the partition 16. The compressed air tank 61 is provided with two connecting pipes 62. The connecting pipes 62 are provided with a pulse switch air valve 64 and a nozzle 63. The nozzle 63 is located above the circular openings 161 and is coaxially arranged with the circular openings 161.

[0033] A cleaning mechanism 5 is sleeved on the outside of the filter cylinder 4. The cleaning mechanism 5 includes multiple annular brushes 51 that are slidably sleeved on the outside of the filter cylinder 4. The multiple annular brushes 51 are linearly distributed. Multiple annular brushes 51 are fixedly installed on the outside of the annular brushes 51 in a circumferential array. Multiple guide rods 53 are arranged in a circumferential array on the outside of the multiple annular brushes 51. The multiple guide rods 53 pass through the corresponding connecting ears 52 and are slidably connected to the corresponding connecting ears 52. The top ends of the multiple guide rods 53 are fixedly connected to the bottom of the partition plate 16. The bottom ends of the multiple guide rods 53 are fixedly installed with the same annular plate 54.

[0034] Multiple guide rods 53 are slidably fitted with springs 55. The bottom end of the spring 55 is fixedly connected to the top of the annular plate 54, and the top end of the spring 55 is fixedly connected to the corresponding connecting lug 52.

[0035] Multiple sleeves 56 are slidably sleeved on the guide rod 53. The two ends of the multiple sleeves 56 are respectively fixedly connected to the corresponding connecting ears 52. Multiple fan-shaped ring plates 57 are fixedly installed on the outside of the annular brush 51 in a circular array. The multiple fan-shaped ring plates 57 and the multiple connecting ears 52 are staggered.

[0036] Furthermore, multiple fan-shaped ring plates 57 are provided on the outer side of the annular brush 51, which can increase the contact area with the compressed airflow ejected by the nozzle 63.

[0037] In this embodiment: the inlet 21 is connected to a dust suction pipe for sucking up the dust generated during the operation of the string welding machine. During operation, the negative pressure fan 8 and the diversion mechanism 1 3 and diversion mechanism 2 7 on the same side are started, and the diversion mechanism 1 3 and diversion mechanism 2 7 on the other side are closed. The dust being sucked up flows from the dust suction pipe through the inlet 21 through the three-way pipe 2 and then through the opened diversion mechanism 1 3 into the corresponding chamber 11. After being filtered by the two filter cartridges 4 in the chamber 1 11, the clean air enters the chamber 2 12 and then flows through the opened diversion mechanism 2 7 into the chamber 3 13. After that, the clean air flows through the negative pressure fan 8 into the filter cartridge 4 and then is discharged through the exhaust port 15.

[0038] When the two filter cartridges 4 in one of the chambers 11 need to be cleaned and unclogged after long-term filtration, the diversion mechanism 1 3 and diversion mechanism 2 7 on that side need to be closed and the diversion mechanism 1 3 and diversion mechanism 2 7 on the other side need to be opened. Then the dust drawn in can be filtered through the two filter cartridges 4 on the other side.

[0039] When cleaning and unclogging the two filter cartridges 4 on the same side, the two pulse switch air valves 64 above the two filter cartridges 4 can be opened. Compressed air in the compressed air tank 61 is intermittently sprayed out from the two nozzles 63 through the two connecting pipes 62 and acts on the inside of the two filter cartridges 4. The air curtain intermittently sprayed from the nozzles 63 is cone-shaped. The cone-shaped air curtain sprays out from the inside of the filter cartridges 4 to complete the unclogging of the filter cartridges 4. After the air curtain blows out of the filter cartridges 4, it acts on the multi-layer fan-shaped ring plate 57 on the cleaning mechanism 5, which will cause each ring brush 51 to compress each After the spring 55 moves down, it cleans the outside of the filter cylinder 4. When the air sprayed from the nozzle 63 stops, the compressed springs 55 will reset and cause the multiple annular brushes 51 to move upward. Since the cone-shaped air curtain of the nozzle 63 sprays intermittently, the multiple annular brushes 51 will move up and down to complete the cleaning of the outside of the filter cylinder 4. With the compressed air sprayed from the nozzle 63, the filter cylinder 4 can be cleaned twice. The dust cleaned from the filter cylinder 4 falls into the dust collection hopper 9 under the action of gravity. In the later stage, only the dust collection hopper 9 needs to be cleaned regularly.

[0040] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dual-chamber industrial dust collector for photovoltaic module production, comprising a dust collection box (1), characterized in that: The dust collector (1) has two chambers 1 (11) inside. Each chamber 1 (11) is above a chamber 2 (12). Each chamber 2 (12) is above a chamber 3 (13). Each chamber 3 (13) is above a chamber 4 (14). Each chamber 1 (11) and each chamber 2 (12) is connected by a partition 2 (19). Each chamber 2 (12) has a diversion mechanism 2 (7). The top of each diversion mechanism 2 (7) is fixedly connected to the bottom inner wall of the chamber 3 (13). Each chamber 2 (12) can be connected to the chamber 3 (13) through the diversion mechanism 2 (7) in the open state. A negative pressure device is fixedly installed on the bottom inner wall of the chamber 4 (14). The air compressor (8) has an air inlet connected to the third chamber (13). The top inner wall of the fourth chamber (14) is provided with an exhaust port (15). A partition (16) is provided between the second chamber (12) and the first chamber (11) on the same side. Two filter cylinders (4) are fixedly installed at the bottom of the partition (16). A back-blowing mechanism (6) for clearing the two filter cylinders (4) is installed at the top of the partition (16). Two diversion mechanisms (3) are provided on the outside of the dust collector (1). The two diversion mechanisms (3) are provided with the same three-way pipe (2). The three-way pipe (2) can be connected to the corresponding first chamber (11) through the diversion mechanism (3) in the open state. The diversion mechanism 1 (3) includes a rectangular box (31) fixedly connected to the outside of the dust collector box (1). The rectangular box (31) is provided with an air inlet (32) and an air outlet (33). The air outlet (33) is connected to the chamber 1 (11). A valve plate 1 (36) is rotatably installed inside the rectangular box (31). A pneumatic actuator 1 (35) is fixedly installed on the outside of the rectangular box (31). A transmission shaft 1 (351) is provided on the pneumatic actuator 1 (35). The transmission shaft 1 (351) passes through the rectangular box (31) and is rotatably connected to the rectangular box (31). The transmission shaft 1 (351) passes through the valve plate 1 (36) and is fixedly connected to the valve plate 1 (36). A baffle (34) is provided on one side inside the rectangular box (31). The three-way pipe (2) is provided with an inlet (21) and two outlets (22). The two outlets (22) are respectively connected to the air inlet (32) on the corresponding diversion mechanism 1 (3). The diversion mechanism 2 (7) includes a rectangular air duct (71), a valve plate 2 (73) is rotatably installed inside the rectangular air duct (71), and a pneumatic actuator 2 (72) is fixedly installed on the outside of the rectangular air duct (71). The pneumatic actuator 2 (72) is provided with a transmission shaft 2 (721). The transmission shaft 2 (721) passes through the rectangular air duct (71) and is rotatably connected to the rectangular air duct (71). The transmission shaft 2 (721) also passes through the valve plate 2 (73) and is fixedly connected to the valve plate 2 (73). The filter cylinder (4) is fitted with a cleaning mechanism (5) on its outer side. The cleaning mechanism (5) includes multiple annular brushes (51) that are slidably fitted on the outer side of the filter cylinder (4). The multiple annular brushes (51) are linearly distributed. Multiple annular brushes (51) are fixedly installed on the outer side of the annular brushes (51) in a circular array. Multiple guide rods (53) are provided on the outer side of the multiple annular brushes (51) in a circular array. The multiple guide rods (53) pass through the corresponding connecting ears (52) and are slidably connected to the corresponding connecting ears (52). The top ends of the multiple guide rods (53) are fixedly connected to the bottom of the partition plate (16). The bottom ends of the multiple guide rods (53) are fixedly installed with the same annular plate (54). Multiple guide rods (53) are slidably fitted with springs (55), the bottom end of the springs (55) is fixedly connected to the top of the annular plate (54), and the top end of the springs (55) is fixedly connected to the corresponding connecting lugs (52). Multiple sleeves (56) are slidably sleeved on the guide rod (53). The two ends of the multiple sleeves (56) are fixedly connected to the corresponding connecting ears (52). Multiple fan-shaped ring plates (57) arranged in a circular array are fixedly installed on the outside of the annular brush (51). The multiple fan-shaped ring plates (57) and multiple connecting ears (52) are staggered.

2. The dual-chamber industrial dust collector for photovoltaic module production according to claim 1, characterized in that: Both chamber 1 (11) have open bottoms, and both chamber 1 (11) have detachable ash hoppers (9) installed at their bottoms. One side of the chamber 1 (11) has a hopper door (17), and the same side of the two chambers 2 (12) has a hopper door (18).

3. The dual-chamber industrial dust collector for photovoltaic module production according to claim 1, characterized in that: The partition (16) has two round openings (161). The top of the filter cylinder (4) is open. The top opening of the two filter cylinders (4) is fixedly connected to the bottom of the partition (16). The two filter cylinders (4) are coaxially arranged with the corresponding round openings (161). The backflush mechanism (6) includes a compressed air tank (61) fixedly installed on the top of the partition (16). The compressed air tank (61) is provided with two connecting pipes (62). The connecting pipes (62) are provided with a pulse switch air valve (64) and a nozzle (63). The nozzle (63) is located above the round opening (161) and is coaxially arranged with the round opening (161).

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