Nitrogen generation station for solar cell production

Abstract

A disclosed nitrogen generation station for solar cell production comprises a nitrogen generation mechanism, a gas detection mechanism and a gas neutralization mechanism, the nitrogen generation mechanism is used for generating nitrogen, the gas detection mechanism is used for detecting air parameters in the nitrogen generation station in real time, and the gas neutralization mechanism is used for neutralizing the air parameters in the nitrogen generation station. The gas neutralization mechanism blows neutralization gas into the nitrogen generation station according to a detection result of the gas detection mechanism so as to adjust the gas content in the nitrogen generation station, the gas neutralization mechanism comprises a placement seat, the placement seat is placed on the ground, the upper end of the placement seat is fixedly connected with a supporting rod, and the supporting rod is fixedly connected with the gas detection mechanism. The end, away from the containing base, of the supporting rod is fixedly connected with a multi-angle rotating structure, and the multi-angle rotating structure is fixedly connected with a spray head used for spraying out gas. Compared with the prior art, the nitrogen generation station for solar cell production has the advantages that the situation that body injuries are caused to workers due to nitrogen leakage is avoided as much as possible, and nitrogen leakage can be detected in the first time and neutralized.

Description

Technical Field

[0001] The invention belongs to the technical field of nitrogen production equipment, and in particular relates to a nitrogen production station for solar cell production. Background Art

[0002] The nitrogen generating station is a device that produces high-purity nitrogen from the air. In the process of solar cell production, nitrogen is used throughout multiple steps, mainly to protect solar cells from corrosion by oxygen and water vapor in the air, and to ensure production quality and efficiency.

[0003] Generally, a solar cell production plant is built with one or more nitrogen production stations, which produce oxygen for the production of solar cells. However, if a nitrogen leak occurs in a nitrogen production station in an existing solar cell production plant, the staff will sense it in the first time. Even if they sense the nitrogen leak, it is difficult to run out of the nitrogen production station in the first time. If the staff inhales excessive nitrogen, it is easy to cause harm to the human body, such as headache, nausea, vomiting, hallucinations and excitement, which affect human health. In addition, if a leak occurs in a nitrogen production station, if the cause of the leak is not promptly investigated and handled, the leaked nitrogen will also affect the environment outside the nitrogen production station, thereby affecting the health of the staff outside the nitrogen production station. In addition, if the leak of the nitrogen production station cannot be investigated and handled in the first time, it will also affect the normal supply of nitrogen, reduce the production efficiency of solar cells, and cause certain economic losses to solar cell manufacturers.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide a nitrogen production station for solar cell production, which can solve the technical problems raised in the above background technology.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A nitrogen production station for solar cell production comprises a nitrogen production mechanism, a gas detection mechanism and a gas neutralization mechanism, wherein the nitrogen production mechanism is used for producing nitrogen, the gas detection mechanism is used for real-time detection of air parameters in the nitrogen production station, and the gas neutralization mechanism blows neutralizing gas into the nitrogen production station according to the detection result of the gas detection mechanism to adjust the gas content in the nitrogen production station, wherein the gas neutralization mechanism comprises a placement seat, the placement seat is placed on the ground, the upper end of the placement seat is fixedly connected to a support rod, the end of the support rod away from the placement seat is fixedly connected to a multi-angle rotation structure, and a nozzle for spraying gas is fixedly connected to the multi-angle rotation structure.

[0008] By setting up a gas detection mechanism and a gas neutralization mechanism, the location of nitrogen leakage can be detected at the first time, and linked with the gas neutralization mechanism, the nitrogen can be neutralized at the first time to avoid the health of workers due to nitrogen leakage. At the same time, it provides time for workers to check the leakage location and improves the maintenance efficiency of workers.

[0009] In one or more embodiments of the present invention, the nitrogen generating mechanism includes an air compressor, an oil remover, a dryer, a first filter, a second filter and a buffer gas storage tank, a first connecting pipe is installed between the air compressor and the oil remover, a second connecting pipe is installed between the oil remover and the dryer, a third connecting pipe is installed between the dryer and the first filter, a fourth connecting pipe is installed between the first filter and the second filter, and a fifth connecting pipe is installed between the second filter and the buffer gas storage tank.

[0010] In one or more embodiments of the present invention, the nitrogen production mechanism further includes a first nitrogen production tank, a second nitrogen production tank and a plurality of parallel pipelines, wherein one parallel pipeline is installed between the first nitrogen production tank and the second nitrogen production tank to achieve alternating nitrogen production between the first nitrogen production tank and the second nitrogen production tank.

[0011] Nitrogen production can be achieved by setting up a nitrogen production mechanism, and by setting up pipelines, the first nitrogen production tank and the second nitrogen production tank can produce nitrogen uninterruptedly, further improving the nitrogen production efficiency.

[0012] In one or more embodiments of the present invention, the parallel pipeline includes a ninth connecting pipe installed on the second nitrogen production tank and a tenth connecting pipe installed on the first nitrogen production tank, an eighth connecting pipe and a seventh connecting pipe are installed between the ninth connecting pipe and the tenth connecting pipe, and a sixth connecting pipe is installed between the seventh connecting pipe and the buffer gas storage tank.

[0013] In one or more embodiments of the present invention, the nitrogen production mechanism includes an oxygen production mechanism, and the oxygen production mechanism includes a first oxygen production tank and a second oxygen production tank. Another parallel pipeline is installed between the first oxygen production tank and the second oxygen production tank to achieve alternating oxygen production by the first oxygen production tank and the second oxygen production tank. A waste pipe for discharging waste gas is installed on the parallel pipeline located between the first oxygen production tank and the second oxygen production tank.

[0014] By setting up an oxygen production mechanism, the oxygen production mechanism utilizes the waste gas that is not needed by the nitrogen production mechanism. Since the waste gas utilized by the oxygen production mechanism has been processed by the nitrogen production mechanism, it can meet the industrial oxygen requirements. In this way, the pre-processing of oxygen production can be reduced, the cost of oxygen production can be reduced, and the oxygen production efficiency can be improved.

[0015] In one or more embodiments of the present invention, a first backflush pipe matching the second nitrogen production tank is installed on the tenth connecting pipe, and the first backflush pipe is used to output gas into the second oxygen production tank to achieve backflush of the gas in the second nitrogen production tank. A third backflush pipe matching the first nitrogen production tank is installed on the ninth connecting pipe, and the third backflush pipe is used to output gas into the first nitrogen production tank to achieve backflush of the gas in the first nitrogen production tank.

[0016] In one or more embodiments of the present invention, a second backflush pipe matching the second oxygen production tank is installed on the first backflush pipe, and the second backflush pipe is used to transport gas into the second oxygen production tank to achieve backflush of the gas in the second oxygen production tank. A fourth backflush pipe matching the first oxygen production tank is installed on the third backflush pipe, and the fourth backflush pipe is used to transport gas into the first oxygen production tank to achieve backflush of the gas in the first oxygen production tank.

[0017] In one or more embodiments of the present invention, a first branch pipe is installed on the third connecting pipe, and a second branch pipe is installed on the fifth connecting pipe.

[0018] In one or more embodiments of the present invention, a waste heat utilization mechanism is included, which is used to extract waste heat generated by the nitrogen production mechanism and use the waste heat at the output end of the nitrogen production mechanism to heat the output nitrogen.

[0019] In one or more embodiments of the present invention, the waste heat utilization mechanism includes a heat absorption part matched with the nitrogen production mechanism, a pump is installed on one side of the heat absorption part, a fifteenth connecting pipe is installed between the heat absorption part and the pump, a heat exchange box is installed on one side of the pump, a sixteenth connecting pipe is installed between the heat exchange box and the pump, and the pump transports the hot gas to the heat exchange box through the sixteenth connecting pipe.

[0020] By setting up a waste heat utilization mechanism, the heat in the nitrogen production station can be collected without affecting the normal operation of the equipment in the nitrogen production station. Part of the heat can be collected and utilized at the output end of the nitrogen to heat the nitrogen, thereby reducing the energy consumed by the solar cell production equipment to heat the nitrogen, saving energy and protecting the environment.

[0021] Compared with the prior art, the nitrogen production station for solar cell production of the present invention can avoid the physical harm of workers caused by nitrogen leakage as much as possible, can detect nitrogen leakage in the first time, and neutralize nitrogen leakage, so that workers can complete the determination of the nitrogen leakage position in the first time, complete the maintenance of the nitrogen production mechanism in the first time, and avoid the situation where the production of solar cells is affected by nitrogen leakage as much as possible, thereby avoiding economic losses to manufacturers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of a nitrogen production station for solar cell production in one embodiment of the present invention Figure 1 ;

[0024] Figure 2 A schematic diagram of the structure of a nitrogen production station for solar cell production in one embodiment of the present invention Figure 2 ;

[0025] Figure 3 A schematic diagram of the structure of a nitrogen production station for solar cell production in one embodiment of the present invention Figure 3 ;

[0026] Figure 4 for Figure 3 Schematic diagram of the structure at A in the middle;

[0027] Figure 5 It is a structural schematic diagram of a waste heat utilization mechanism in one embodiment of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of a gas neutralization mechanism in one embodiment of the present invention;

[0029] Figure 7 This is a usage status diagram of a gas neutralization mechanism in a nitrogen production station for solar cell production in one embodiment of the present invention.

[0030] Description of main reference numerals:

[0031] 1. air compressor; 2. first connecting pipe; 3. oil remover; 4. second connecting pipe; 5. dryer; 6. third connecting pipe; 601. first branch pipe; 7. first filter; 8. fourth connecting pipe; 9. second filter; 10. fifth connecting pipe; 11. second branch pipe; 12. buffer gas storage tank; 13. sixth connecting pipe; 14. parallel pipeline; 15. seventh connecting pipe; 16. eighth connecting pipe; 17. ninth connecting pipe; 18. tenth connecting pipe; 19. first exhaust pipe; 20. first nitrogen tank; 21. second nitrogen tank; 22. eleventh connecting pipe; 23. twelfth connecting pipe ; 24. Nitrogen storage tank; 25. Nitrogen exhaust pipe; 26. First oxygen production tank; 27. Second oxygen production tank; 28. Thirteenth connecting pipe; 29. ​​Fourteenth connecting pipe; 30. Oxygen storage tank; 31. Oxygen exhaust pipe; 32. Waste heat utilization mechanism; 33. Heat absorption unit; 34. Pump; 35. Fifteenth connecting pipe; 36. Heat exchange box; 37. Sixteenth connecting pipe; 38. Gas neutralization mechanism; 39. Placement seat; 40. Support rod; 41. Multi-angle rotation structure; 42. Nozzle; 43. Waste exhaust pipe; 44. First backflush pipe; 45. Second backflush pipe; 46. Third backflush pipe; 47. Fourth backflush pipe. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present invention, 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. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] like Figure 1 to Figure 4 As shown, a nitrogen production station for solar cell production in one embodiment of the present invention includes a nitrogen production mechanism, a gas detection mechanism and a gas neutralization mechanism 38. The nitrogen production mechanism is used to produce nitrogen, and the gas detection mechanism is used to detect the quality of the air in the nitrogen production station to avoid excessive nitrogen content causing inhalation by the workers in the nitrogen production station, which affects the health of the workers. The gas neutralization mechanism 38 can cooperate with the gas detection mechanism to control the air quality in the nitrogen production station. If nitrogen leaks, the gas neutralization mechanism 38 can spray gas to achieve nitrogen neutralization and form convection in the air, so that the sprayed gas and nitrogen are quickly neutralized, reducing the nitrogen content in the air, and providing effective escape conditions for the workers in the nitrogen production station.

[0034] like Figure 1 to Figure 4As shown, the nitrogen-making mechanism includes an air compressor 1, an oil remover 3, a dryer 5, a first filter 7, a second filter 9, a buffer gas storage tank 12, a first nitrogen-making tank 20, and a second nitrogen-making tank 21. A first connecting pipe 2 is installed between the air compressor 1 and the oil remover 3, a second connecting pipe 4 is installed between the oil remover 3 and the dryer 5, a third connecting pipe 6 is installed between the dryer 5 and the first filter 7, a fourth connecting pipe 8 is installed between the first filter 7 and the second filter 9, and a fifth connecting pipe 10 is installed between the second filter 9 and the buffer gas storage tank 12. A parallel pipeline 14 is installed between the first nitrogen-making tank 20 and the second nitrogen-making tank 21, and a sixth connecting pipe 13 is installed between the buffer gas storage tank 12 and the parallel pipeline 14. The parallel pipeline 14 can realize the alternating operation of the first nitrogen production tank 20 and the second nitrogen production tank 21, that is, when the first nitrogen production tank 20 is producing nitrogen, the nitrogen production factor in the second nitrogen production tank 21 is regenerated, and when the second nitrogen production tank 21 is producing nitrogen, the nitrogen production factor in the first nitrogen production tank 20 is regenerated. The first nitrogen production tank 20 and the second nitrogen production tank 21 produce nitrogen alternately, which can realize intermittent generation of nitrogen, thereby providing a large amount of nitrogen for use in the production of solar cells.

[0035] like Figure 1 to Figure 4 As shown, the air compressor 1 compresses the air, removes most of the moisture, oil and other media in the air through the deoiler 3, and then further dries it through the dryer 5. The dried gas passes through the first filter 7 and the second filter 9 to filter out impurities in the air, and then enters the buffer gas storage tank 12 to wait for nitrogen production. When making nitrogen, the air in the buffer gas storage tank 12 is transported to the first nitrogen making tank 20 through the parallel pipeline 14. The first nitrogen making tank 20 can filter nitrogen and other gases in the air. After the nitrogen passes through the first nitrogen making tank 20, it can be put into the production of solar cells. In this process, the parallel pipeline 14 transports part of the gas to the second nitrogen making tank 21, and realizes the backflush in the second nitrogen making tank 21, so that the nitrogen making factor in the second nitrogen making tank 21 is regenerated, and the alternating nitrogen production of the first nitrogen making tank 20 and the second nitrogen making tank 21 is realized.

[0036] like Figure 1 to Figure 4As shown, the parallel pipeline 14 includes a tenth connecting pipe 18 installed on the first nitrogen making tank 20 and a ninth connecting pipe 17 installed on the second nitrogen making tank 21, an eighth connecting pipe 16 and a seventh connecting pipe 15 are installed between the tenth connecting pipe 18 and the ninth connecting pipe 17, and a sixth connecting pipe 13 is installed between the seventh connecting pipe 15 and the buffer gas storage tank 12. The seventh connecting pipe 15 can divert the gas transported by the sixth connecting pipe 13, and control the gas transported by the sixth connecting pipe 13 to be transported to the first nitrogen making tank 20 or to the second nitrogen making tank 21. The tenth connecting pipe 18 is equipped with a first backflush pipe 44 that matches the second nitrogen making tank 21. When the gas in the sixth connecting pipe 13 is transported to the tenth connecting pipe 18 by the seventh connecting pipe 15 and then transported to the first nitrogen making tank 20 by the tenth connecting pipe 18, part of the gas enters the second nitrogen making tank 21 through the first backflush pipe 44, and backflush is performed in the second nitrogen making tank 21 to achieve the regeneration of the nitrogen making factor.

[0037] like Figure 1 to Figure 4 As shown, the third backflush pipe 46 matching the second nitrogen making tank 21 is installed on the ninth connecting pipe 17, and the third backflush pipe 46 is connected to the ninth connecting pipe 17. When the air in the sixth connecting pipe 13 is transported to the ninth connecting pipe 17 through the seventh connecting pipe 15, the air is then transported to the second nitrogen making tank 21 by the ninth connecting pipe 17, and the second nitrogen making tank 21 makes nitrogen. In this process, part of the air is transported to the first nitrogen making tank 20 through the third backflush pipe 46, and backflush is performed in the first nitrogen making tank 20, so as to achieve the regeneration of the nitrogen making factor in the second nitrogen making tank 21.

[0038] The nitrogen generating factor is generally a carbon molecular sieve. After a period of adsorption, the carbon molecular sieve is saturated and needs to be desorbed. The backflushing in the first nitrogen generating tank 20 and the second nitrogen generating tank 21 realizes the desorption of the carbon molecular sieve.

[0039] like Figure 1 to Figure 3 As shown, an eleventh connecting pipe 22 is installed between the first nitrogen making tank 20 and the second nitrogen making tank 21, and the eleventh connecting pipe 22 is used to transport the nitrogen after passing through the first nitrogen making tank 20 and the second nitrogen making tank 21. A twelfth connecting pipe 23 is installed on the eleventh connecting pipe 22, and a nitrogen storage tank 24 is installed at the other end of the twelfth connecting pipe 23. The nitrogen after being processed by the first nitrogen making tank 20 and the second nitrogen making tank 21 is temporarily stored by the nitrogen storage tank 24. A nitrogen exhaust pipe 25 is fixedly connected to one side of the nitrogen storage tank 24, and the nitrogen exhaust pipe 25 is used to output the nitrogen in the nitrogen storage tank 24.

[0040] Since the waste gas generated by the desorption of the first nitrogen production tank 20 and the second nitrogen production tank 21 contains a large amount of oxygen, carbon dioxide and other gases, the oxygen in the waste gas generated by the desorption is difficult to recover. In order to solve the above problems, the nitrogen production mechanism also includes a first oxygen production tank 26 and a second oxygen production tank 27. The first oxygen production tank 26 and the second oxygen production tank 27 are used to treat the waste gas generated by the desorption of the second nitrogen production tank 21 and the first nitrogen production tank 20, and the first oxygen production tank 26 and the second oxygen production tank 27 can extract oxygen from the waste gas. Since the waste gas generated by the desorption of the first nitrogen production tank 20 and the second nitrogen production tank 21 is clean and does not contain impurities, it meets the requirements of oxygen extraction, and the content of nitrogen in the waste gas is greatly reduced, the efficiency of extracting oxygen by the first oxygen production tank 26 and the second oxygen production tank 27 can be greatly improved.

[0041] like Figure 1 to Figure 3 As shown, a parallel pipeline 14 is also installed between the first oxygen tank 26 and the second oxygen tank 27. The first oxygen tank 26 and the second oxygen tank 27 are alternately extracted through the parallel pipeline 14, and the first oxygen tank 26 and the second oxygen tank 27 can continuously and uninterruptedly obtain oxygen. The parallel pipeline 14 between the first oxygen tank 26 and the second oxygen tank 27 has the same structure and function as the parallel pipeline 14 between the first nitrogen tank 20 and the second nitrogen tank 21. A first exhaust pipe 19 is installed between the parallel pipeline 14 between the first oxygen tank 26 and the second oxygen tank 27 and the eighth connecting pipe 16. Through the cooperation of the eighth connecting pipe 16 and the first exhaust pipe 19, the waste gas after filtering nitrogen is transported to the parallel pipeline 14 between the first oxygen tank 26 and the second oxygen tank 27, and then distributed by the parallel pipeline 14 between the first oxygen tank 26 and the second oxygen tank 27. The parallel pipeline 14 between the first oxygen production tank 26 and the second oxygen production tank 27 is provided with an exhaust pipe 43 for exhausting the exhaust gas.

[0042] like Figure 1 to Figure 4 As shown, the first backflush pipe 44 is fixedly connected with a second backflush pipe 45 matching the second oxygen-generating tank 27, and the second backflush pipe 45 can transport gas into the second oxygen-generating tank 27 to achieve backflush in the second oxygen-generating tank 27, so as to achieve regeneration of the oxygen-generating factor. The third backflush pipe 46 is fixedly connected with a fourth backflush pipe 47 matching the first oxygen-generating tank 26, and the fourth backflush pipe 47 can transport gas into the first oxygen-generating tank 26 to achieve backflush in the second oxygen-generating tank 27 to achieve regeneration of the oxygen-generating factor. The first oxygen-generating tank 26 and the second oxygen-generating tank 27 are distributed through the parallel pipeline 14, and the two alternately generate oxygen to improve the oxygen-generating efficiency. A thirteenth connecting pipe 28 is installed between the first oxygen-generating tank 26 and the second oxygen-generating tank 27, and the thirteenth connecting pipe 28 connects the first oxygen-generating tank 26 and the second oxygen-generating tank 27. A fourteenth connecting pipe 29 is installed on the thirteenth connecting pipe 28, and the other end of the fourteenth connecting pipe 29 is fixedly connected to the oxygen storage tank 30. The oxygen storage tank 30 is used for temporarily storing oxygen, and an oxygen exhaust pipe 31 for outputting oxygen is installed on one side of the oxygen storage tank 30 .

[0043] Preferably, the first backflush pipe 44 and the third backflush pipe 46 are connected to the eleventh connecting pipe 22, that is, the gas backflushed into the first nitrogen production tank 20, the second nitrogen production tank 21, the first oxygen production tank 26 and the second oxygen production tank 27 is nitrogen, and nitrogen can improve the regeneration efficiency of the oxygen production factor and the nitrogen production factor, that is, nitrogen can improve the desorption efficiency of the carbon molecular sieve.

[0044] like Figure 1 to Figure 5 As shown, a large amount of heat is generated during the use of the nitrogen production station, which is generally produced by the nitrogen production equipment. The heat generated needs to be dissipated. If the heat is directly dissipated, it is easy to cause heat loss and waste of resources. In order to solve the above problem, the nitrogen production station is also provided with a waste heat utilization mechanism 32 matching the nitrogen production mechanism. The waste heat utilization mechanism 32 can absorb the waste heat of the nitrogen production mechanism and transfer it to the output end of the nitrogen to heat the nitrogen, reduce the energy consumed by the solar cell production equipment to heat the nitrogen, and reduce the use cost of the solar cell production equipment.

[0045] like Figure 1 to Figure 5 As shown, the waste heat utilization mechanism 32 includes a heat absorption part 33, and the heat absorption part 33 is placed next to the heat generating device of the nitrogen making mechanism. In this embodiment, the heat absorption part 33 is arranged on one side of the air compressor 1. A pump 34 is installed on one side of the heat absorption part 33, and a fifteenth connecting pipe 35 is installed between the pump 34 and the heat absorption part 33. Heat is extracted from the heat absorption part 33 and transported to the pump 34 by the fifteenth connecting pipe 35. A sixteenth connecting pipe 37 is installed at the output end of the pump 34, and a heat exchange box 36 is installed at the end of the sixteenth connecting pipe 37 away from the pump 34. The heat exchange box 36 can store part of the heat and exchange the heat with the nitrogen in the nitrogen exhaust pipe 25, thereby heating the nitrogen.

[0046] like Figure 6-7 As shown in the figure, during the use of the nitrogen generator, there is a high probability of nitrogen leakage. If the nitrogen content in the air is too high and is inhaled by the staff, it will greatly affect the health of the staff. To solve the above problem, Figure 1 to Figure 6 As shown, the nitrogen production station also includes a gas neutralization mechanism 38 that matches the nitrogen production mechanism. The gas neutralization mechanism 38 can blow nitrogen to a corner of the nitrogen production station. That is, the leaked nitrogen is blown to one place to reduce the nitrogen concentration in other parts of the nitrogen production station, and the nitrogen leakage affects the workers as much as possible. The gas neutralization mechanism 38 can also blow oxygen outward to mix nitrogen and oxygen, and avoid the situation where the nitrogen concentration is too high when the workers inhale the air as much as possible. In general, the gas parameters in the air and the leakage location of nitrogen are detected in real time by the gas detection mechanism.

[0047] Specifically, Figure 6-7As shown, the gas neutralization mechanism 38 includes a placement seat 39, the upper end of the placement seat 39 is fixedly connected to a support rod 40, and the end of the support rod 40 away from the placement seat 39 is installed with a multi-angle rotation structure 41, and a nozzle 42 is installed on the multi-angle rotation structure 41. The nozzle 42 can be rotated at any angle on the support rod 40 through the multi-angle rotation structure 41, and can cooperate with the gas detection mechanism to change the direction of the nozzle 42 according to the leakage position to achieve better treatment of leaked nitrogen.

[0048] Specifically, the nozzle 42 is used to spray oxygen, and the oxygen is provided by the oxygen storage tank 30. That is, during the execution of the gas neutralization mechanism 38, the gas produced by the nitrogen production station itself is used to deal with nitrogen leakage, and no external gas is needed, so as to reduce the cost caused by the external gas treatment of nitrogen leakage.

[0049] like Figure 1 As shown, the fifth connecting pipe 10 is provided with a second branch pipe 11, and the third connecting pipe 6 is provided with a first branch pipe 601. Nitrogen enters from the first branch pipe 601 and is discharged from the second branch pipe 11, so that fine filtration of nitrogen can be achieved. In the production process of solar cells, nitrogen requires a certain amount of heat. For example, when used in a diffusion furnace, nitrogen needs to be maintained at about 100 to 200°C. During the diffusion process, impurities will appear in the diffusion furnace. The diffusion furnace is connected to the first branch pipe 601 and the second branch pipe 11. When the nitrogen in the diffusion furnace needs to be filtered, the nitrogen is passed into the first branch pipe 601, so that the nitrogen passes through the first filter 7 and the second filter 9 in sequence, and is discharged back into the diffusion furnace through the second branch pipe 11 to achieve nitrogen filtration. It can also reduce the cost of processing the gas in the diffusion furnace, and the nitrogen-making mechanism and the solar cell both use the first filter 7 and the second filter 9 to process the nitrogen, which can greatly reduce the cost of solar cell production equipment.

[0050] When using nitrogen production stations for solar cell production, Figure 1 to Figure 7 As shown, nitrogen is first produced by the nitrogen producing mechanism. When nitrogen and other gases are separated in the second nitrogen producing tank 21 and the first nitrogen producing tank 20, other gases are discharged into the first oxygen producing tank 26 and the second oxygen producing tank 27 through the first exhaust pipe 19. Oxygen and other gases are separated in the first oxygen producing tank 26 and the second oxygen producing tank 27 to obtain oxygen, which is stored in the oxygen storage tank 30.

[0051] If a leak occurs in the nitrogen production station, it will be detected by the gas detection mechanism in the first time. The gas detection mechanism cooperates with the gas neutralization mechanism 38 to achieve the neutralization of nitrogen and oxygen, thereby reducing the nitrogen content in the air. The gas neutralization mechanism 38 can blow the nitrogen to the exhaust equipment in the nitrogen production station and cooperate with the exhaust equipment to reduce the nitrogen content while increasing the speed of nitrogen discharge, so as to avoid the situation where the nitrogen content in the nitrogen production station is too high and affects human health. This is also conducive to the staff in the nitrogen production station running away from the nitrogen production station that leaks nitrogen, and the nitrogen content in the nitrogen production station can be controlled within a certain period of time. The leakage source of the nitrogen leak in the nitrogen production station can be detected in the first time, which is conducive to processing the nitrogen source in the first time, and avoiding the nitrogen leakage time for too long to affect the production of solar cells as much as possible.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0053] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A nitrogen production station for solar cell production, characterized in that: include A nitrogen production mechanism, wherein the nitrogen production mechanism is used to produce nitrogen; A gas detection mechanism, which is used to detect air parameters in the nitrogen production station in real time; A gas neutralization mechanism, which blows neutralization gas into the nitrogen production station according to the detection result of the gas detection mechanism to adjust the gas content in the nitrogen production station; Among them, the gas neutralization mechanism includes a placement seat, which is placed on the ground. The upper end of the placement seat is fixedly connected to a support rod, and the end of the support rod away from the placement seat is fixedly connected to a multi-angle rotation structure, and the multi-angle rotation structure is fixedly connected to a nozzle for spraying gas.

2. A nitrogen production station for solar cell production according to claim 1, characterized in that: The nitrogen production mechanism includes an air compressor, an oil remover, a dryer, a first filter, a second filter and a buffer gas storage tank. A first connecting pipe is installed between the air compressor and the oil remover, a second connecting pipe is installed between the oil remover and the dryer, a third connecting pipe is installed between the dryer and the first filter, a fourth connecting pipe is installed between the first filter and the second filter, and a fifth connecting pipe is installed between the second filter and the buffer gas storage tank.

3. A nitrogen production station for solar cell production according to claim 2, characterized in that: The nitrogen production mechanism further comprises a first nitrogen production tank, a second nitrogen production tank and a plurality of parallel pipelines, wherein one parallel pipeline is installed between the first nitrogen production tank and the second nitrogen production tank to achieve alternating nitrogen production by the first nitrogen production tank and the second nitrogen production tank.

4. A nitrogen production station for solar cell production according to claim 3, characterized in that: The parallel pipeline includes a ninth connecting pipe installed on the second nitrogen-generating tank and a tenth connecting pipe installed on the first nitrogen-generating tank, and an eighth connecting pipe and a seventh connecting pipe are installed between the ninth connecting pipe and the tenth connecting pipe; A sixth connecting pipe is installed between the seventh connecting pipe and the buffer gas storage tank.

5. A nitrogen production station for solar cell production according to claim 4, characterized in that: The nitrogen production mechanism includes an oxygen production mechanism, and the oxygen production mechanism includes a first oxygen production tank and a second oxygen production tank. The other parallel pipeline is installed between the first oxygen production tank and the second oxygen production tank to achieve alternating oxygen production by the first oxygen production tank and the second oxygen production tank. A waste pipe for discharging waste gas is installed on the parallel pipeline located between the first oxygen production tank and the second oxygen production tank.

6. A nitrogen production station for solar cell production according to claim 5, characterized in that: The tenth connecting pipe is provided with a first backflush pipe matching the second nitrogen production tank, and the first backflush pipe is used to output gas into the second oxygen production tank to realize backflush of gas in the second nitrogen production tank; The ninth connecting pipe is provided with a third backflush pipe matching the first nitrogen making tank, and the third backflush pipe is used to output gas into the first nitrogen making tank to realize backflush of gas in the first nitrogen making tank.

7. A nitrogen production station for solar cell production according to claim 6, characterized in that: A second backflush pipe matching the second oxygen production tank is installed on the first backflush pipe, and the second backflush pipe is used to transport gas into the second oxygen production tank to achieve backflush of gas in the second oxygen production tank; A fourth backflush pipe matching the first oxygen production tank is installed on the third backflush pipe, and the fourth backflush pipe is used to transport gas into the first oxygen production tank to achieve backflush of gas in the first oxygen production tank.

8. A nitrogen production station for solar cell production according to claim 7, characterized in that: The third connecting pipe is provided with a first branch pipe, and the fifth connecting pipe is provided with a second branch pipe.

9. A nitrogen production station for solar cell production according to claim 1, characterized in that: It comprises a waste heat utilization mechanism, which is used to extract waste heat generated by the nitrogen making mechanism and use the waste heat at the output end of the nitrogen making mechanism to heat the output nitrogen.

10. A nitrogen production station for solar cell production according to claim 9, characterized in that: The waste heat utilization mechanism includes a heat absorbing part matched with the nitrogen making mechanism, a pump is installed on one side of the heat absorbing part, and a fifteenth connecting pipe is installed between the heat absorbing part and the pump; A heat exchange box is installed on one side of the pump, and a sixteenth connecting pipe is installed between the heat exchange box and the pump. The pump transports hot air to the heat exchange box through the sixteenth connecting pipe.

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