CN218034024U - Linear vacuum drying equipment - Google Patents
Linear vacuum drying equipment Download PDFInfo
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- CN218034024U CN218034024U CN202123005319.8U CN202123005319U CN218034024U CN 218034024 U CN218034024 U CN 218034024U CN 202123005319 U CN202123005319 U CN 202123005319U CN 218034024 U CN218034024 U CN 218034024U
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Abstract
The utility model discloses a linear vacuum drying equipment relates to drying equipment technical field, including the material loading region that communicates in proper order, dry region and unloading are regional to and be used for controlling the material loading region, dry region and the regional vacuum condition's of unloading vacuum regulation and control system, dry region is including the preceding cushion chamber that is linked together in proper order, dry chamber and back cushion chamber, and the intracavity in dry chamber is provided with gaseous spraying system, and the bottom in dry chamber intracavity is provided with heating system, and gaseous spraying system is including being gas injection district and the exhaust area that interval arrangement and each other alternate repetition set up. The utility model discloses possessed through the mode that even interval tonifying qi was bled, combined glass's dynamic drive, made the glass surface all around all evenly distributed fresh gas and formed better gas exchange, reached better drying effect to dynamic driven mode also is favorable to the large-scale mass production equipment productivity design of linear transmission.
Description
Technical Field
The utility model relates to a drying equipment technical field specifically is a linear vacuum drying equipment.
Background
Solar energy is inexhaustible renewable energy source and is also clean energy source, and no environmental pollution is generated. Among the effective uses of solar energy; solar photovoltaic utilization is one of the most attractive projects, the fastest growing and most active research fields in recent years. For this reason, solar cells have been developed and developed. In recent years, as the efficiency of the HIT battery, the Topcon structure, the perovskite tandem solar cell and the like is high, the efficiency of the HIT battery, the Topcon structure, the perovskite tandem solar cell and the like is improved very fast in recent years, and the volume production is greatly promoted.
Solar cells are usually prepared on glass plated with transparent conductive films, wherein most organic layers are usually coated, the coated organosol is usually a liquid formula solution, redundant organic solution is required to be volatilized through drying after coating is finished, the volatilization process is very uniform, and the conventional design has the following steps: firstly, uniformly supplementing air by an upper spraying plate, and exhausting air from the periphery of the bottom; secondly, the air is pumped from the opposite side by the single-side air supply to form convection. However, the two methods have the following problems that the gas tends to flow towards the peripheral edge of the glass in the first method, so that the gas in the central area of the spray plate is thinner, and the volatilization of a film layer is uneven; in the second scheme, the organic solution on the surface of the glass can be exchanged in the process of volatilization of the gas entering, and the gas entering at one side is fresh due to the design of air extraction at the opposite side, so that the gas exchange at the opposite side is influenced. Such a commonly used scheme of air-replenishing and air-exhausting is not ideal.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a linear vacuum drying equipment has possessed the mode of bleeding through even interval tonifying qi, combines glass's dynamic transmission, makes glass surface all around all evenly distributed fresh gas and form better gas exchange, reaches better drying effect to dynamic driven mode also is favorable to the large-scale volume production equipment productivity design of linear transmission, has solved the technical problem who provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a linear vacuum drying device comprises a feeding area, a drying area and a discharging area which are sequentially communicated, and a vacuum regulation and control system for controlling the vacuum state of the feeding area, the drying area and the discharging area;
the drying area comprises a front buffer cavity, a drying cavity and a rear buffer cavity which are sequentially communicated, a gas spraying system is arranged in the drying cavity, and a heating system is arranged at the bottom in the drying cavity;
the gas spraying system comprises gas spraying areas and gas pumping areas which are arranged at intervals and are alternately and repeatedly arranged.
Optionally, the air injection area and the air exhaust area both include a plurality of air ports, the air exhaust area is arranged in a groove relative to the air injection area, the diameter of each air port is 0.5mm to 5mm, the width of each groove is 0.5mm to 5mm, and the length of each groove is 1mm to 1000mm.
Optionally, the length of the effective air injection area of the air injection area is greater than the width of the substrate to be dried in the direction perpendicular to the conveying direction, specifically greater than 1cm to 10cm.
Optionally, the gas spraying system is fixed on a parallel surface of a surface to be dried after the substrate to be dried is transmitted to the drying cavity, and the distance between the bottom surface of the gas spraying system and two parallel surfaces of the upper surface of the substrate to be dried is 2 mm-200 mm.
Optionally, the gas sprayed by the gas spraying system comprises one or more mixed gases of nitrogen, hydrogen, dry air, oxygen, ammonia gas and the like.
Optionally, the feeding region comprises a feeding platform and a feeding cavity, the discharging region comprises a discharging cavity and a discharging platform, the feeding platform is communicated with the front buffer cavity, the drying cavity, the rear buffer cavity, the discharging cavity and the discharging platform in sequence, and gate valves are arranged between the feeding platform and the feeding cavity, between the feeding cavity and the front buffer cavity, between the rear buffer cavity and the discharging cavity, and between the discharging cavity and the discharging platform.
Optionally, the vacuum regulation and control system comprises a vacuum pump, and the vacuum pump is respectively communicated with the feeding cavity and the discharging cavity through a first electromagnetic valve, a second electromagnetic valve and a three-way pipe.
Optionally, the system further comprises an inflator pump and an air pump, wherein the inflator pump is communicated with the air injection area so as to adjust the air injection flow of the air injection area by controlling the inflator pump, the air intake flow of the whole equipment is 0.2slm to 200slm, and the air pump is communicated with the air extraction area.
Optionally, the number of the drying chambers is at least one.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a linear transmission, material loading chamber and unloading chamber all have two door valves to separate for dry chamber can keep vacuum state always, and the base plate then can realize dynamic linear transmission drying process, has realized the dry volume production of base plate like this and has handled, and the productivity is very high.
2. The utility model discloses the gas injection district is interval arrangement with the district of bleeding to adjacent gas injection district forms a little air current circulation space with the district of bleeding, and the gas in this space remains fresh through the replenishment in gas injection district all the time, and by many gas ports evenly distributed's mode, has guaranteed the gaseous homogeneity on the perpendicular transmission direction, so ensured this regional class drying effect's homogeneity.
3. The utility model discloses a gas injection district and the district repeated setting of bleeding, when the base plate developments were transmitted forward, the base plate can be through progressively even drying behind a plurality of gas injection districts and the cyclic unit in the district of bleeding, to each point on the base plate on the transmission direction all passed through the cyclic unit of the same quantity, just so guaranteed drying effect's on the base plate transmission direction even.
4. The utility model discloses well vacuum regulation and control system, heating system and gas spraying system's height all can be adjusted to and jet-propelled airflow regulation and control, so, equipment has high compatibility and technological stability.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
fig. 2 is a top view of the gas spraying system of the present invention;
fig. 3 is a bottom view of the gas spraying system of the present invention.
In the figure: 1-feeding platform, 2-feeding cavity, 3-front buffer cavity, 4-drying cavity, 6-rear buffer cavity, 7-blanking cavity, 8-blanking platform, 9-gate valve, 10-vacuum pump, 11-gas spraying system, 12-heating system, 13-three-way pipe, 14-first electromagnetic valve, 16-second electromagnetic valve, 17-gas spraying area and 18-gas extraction area.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1 to 3, the present invention provides a technical solution: the linear vacuum drying equipment comprises a feeding area, a drying area and a discharging area which are sequentially communicated, and a vacuum regulation and control system for controlling the vacuum state of the feeding area, the drying area and the discharging area.
The drying region comprises a front buffer cavity 3, a drying cavity 4 and a rear buffer cavity 6 which are sequentially communicated, a gas spraying system 11 is arranged in the cavity of the drying cavity 4, a heating system 12 is arranged at the bottom in the cavity of the drying cavity 4, the gas spraying system 11 comprises a gas spraying region 17 and a gas pumping region 18 which are arranged at intervals and are alternately and repeatedly arranged, and the gas spraying region 17 and the gas pumping region 18 are spaced by 5cm.
The utility model provides a vacuum regulation and control system, heating system 12 and gas spraying system 11 highly all can adopt current general technical means, if with the help of electric putter, realize its altitude mixture control to and jet-propelled airflow regulation and control, so, equipment has high compatibility and technological stability.
The whole equipment is vacuumized to the bottom pressure through a vacuum regulation and control system, the pressure can be 10Pa in the embodiment, a substrate to be dried is conveyed into a drying cavity 4 through a front buffer cavity 3 through a feeding area, in the process, the air injection areas 17 and the air exhaust areas 18 are arranged at intervals, the air injection areas 17 and the air exhaust areas 18 which are adjacent form a small air flow circulating space, air in the space is kept fresh all the time through the supplement of the air injection areas 17, the uniformity of the air in the vertical conveying direction is ensured in a mode of uniformly distributing a plurality of air ports, the uniformity of the similar drying effect of the area is ensured, the substrate is dynamically conveyed forwards, the substrate is gradually and uniformly dried after passing through the circulating units of the air injection areas 17 and the air exhaust areas 18, and each point in the conveying direction on the substrate passes through the same number of circulating units, so that the uniformity of the drying effect in the conveying direction of the substrate is ensured. The dried substrate is then transported away through a blanking area so that the substrate completes the entire process and proceeds to the next process.
Further, the length of the effective air injection area of the air injection area 17 is larger than the width of the substrate to be dried in the direction perpendicular to the conveying direction, specifically larger than 1 cm-10 cm.
Further, the gas spraying system 11 is fixed on the parallel surface of the surface to be dried after the substrate to be dried is transmitted to the drying chamber 4, and the distance between the bottom surface of the gas spraying system 11 and the two parallel surfaces of the upper surface of the substrate to be dried is 2 mm-200 mm.
Further, the gas sprayed by the gas spraying system 11 includes one or more mixed gases of nitrogen, hydrogen, dry air, oxygen, methylamine, ammonia, and the like.
Further, the material loading is regional including material loading platform 1 and material loading chamber 2, the unloading is regional including unloading chamber 7 and unloading platform 8, material loading platform 1, material loading chamber 2, preceding cushion chamber 3, dry chamber 4, back cushion chamber 6, unloading chamber 7 and unloading platform 8 are linked together in proper order, between material loading platform 1 and the material loading chamber 2, between material loading chamber 2 and preceding cushion chamber 3, between back cushion chamber 6 and the unloading chamber 7, and all be provided with gate valve 9 between unloading chamber 7 and the unloading platform 8.
The substrate to be dried is conveyed to the feeding platform 1 through the transmission system, then the gate valve 9 between the feeding platform 1 and the feeding cavity 2 is opened, the substrate to be dried is conveyed into the feeding cavity 2, and the gate valve 9 between the feeding platform 1 and the feeding cavity 2 is closed. And the vacuum pressure in the feeding cavity 2 is pumped to be consistent with the pressure of the front buffer cavity 3 through a vacuum regulation and control system.
Opening a gate valve 9 between a feeding cavity 2 and a front buffering cavity 3, conveying a substrate to be dried to a drying cavity 4 through the front buffering cavity 3, moving forward at a constant speed, then closing the gate valve 9 between a rear feeding cavity 2 and the front buffering cavity 3, breaking vacuum of the feeding cavity 2, opening the gate valve 9 between a feeding platform 1 and the feeding cavity 2 again, conveying the next substrate to be dried to the feeding cavity 2, moving the substrate to be dried to the drying cavity 4 at a constant speed, passing through the drying cavity 4, passing through a rear buffering cavity 6, then opening the gate valve 9 between the buffering cavity 6 and a discharging cavity 7, conveying the dried substrate to the discharging cavity 7, closing the gate valve 9 between the rear buffering cavity 6 and the discharging cavity 7 after complete conveying, breaking vacuum of the discharging cavity 7 to the atmosphere, then opening the gate valve 9 between the discharging cavity 7 and the discharging platform 8, conveying the dried substrate to the discharging platform 8, and completing the whole process.
In summary, the apparatus is designed to be linear transfer, and the feeding cavity 2 and the discharging cavity 7 are separated by two gate valves, so that the drying cavity 4 can be kept in a vacuum state all the time, and thus the substrate can be subjected to dynamic linear transfer drying treatment, and thus the mass production treatment of substrate drying is realized, and the productivity is very high.
Further, the vacuum regulation and control system comprises a vacuum pump 10, and the vacuum pump 10 is respectively communicated with the feeding cavity 2 and the discharging cavity 7 through a first electromagnetic valve 14, a second electromagnetic valve 16 and a three-way pipe 13.
Further, the device also comprises an inflating pump 19 and an air pump 20, wherein the inflating pump 19 is communicated with the air injection zone 17 so as to adjust the air injection flow of the air injection zone 17 by controlling the inflating pump 19, the air inflow of the whole device is 0.2 slm-200 slm, and the air pump 20 is communicated with the air extraction zone 18.
Further, the number of the drying chambers 4 is at least one.
In the second embodiment, on the basis of the previous embodiment, another embodiment may be:
the total plant inlet flow was 10slm.
In a third embodiment, on the basis of the previous embodiment, another embodiment may be:
the effective gas injection area length of the gas injection area 17 is greater than the width of the substrate to be dried in the direction perpendicular to the transport direction, specifically greater than 5cm.
The working principle is as follows: when the linear vacuum drying equipment is used, the gate valve 9 between the back buffer cavity 6 and the blanking cavity 7 is opened, then the vacuum pump 10 is started, the second electromagnetic valve 16 is opened, and the whole equipment is vacuumized to the bottom pressure and 10Pa.
Then the vacuum pump 10 and the second electromagnetic valve 16 are closed, the substrate to be dried is conveyed to the loading platform 1 through the transmission system, then the gate valve 9 between the loading platform 1 and the loading cavity 2 is opened, the substrate to be dried is conveyed into the loading cavity 2, and the gate valve 9 between the loading platform 1 and the loading cavity 2 is closed.
And starting the vacuum pump 10, opening the first electromagnetic valve 14, pumping the vacuum pressure in the feeding cavity 2 to be consistent with the pressure of the front buffer cavity 3, and then closing the vacuum pump 10 and the first electromagnetic valve 14.
And opening a gate valve 9 between the feeding cavity 2 and the front buffer cavity 3, conveying the substrate to be dried to a drying cavity 4 through the front buffer cavity 3, advancing at a constant speed, then closing the gate valve 9 between the rear feeding cavity 2 and the front buffer cavity 3, breaking vacuum in the feeding cavity 2, opening the gate valve 9 between the feeding platform 1 and the feeding cavity 2 again, and conveying the next substrate to be dried into the feeding cavity 2.
The substrate to be dried, which is transmitted to the drying cavity 4, moves forward at a constant speed, passes through the drying cavity 4 and then passes through the rear buffer cavity 6, in the process, the air injection areas 17 and the air extraction areas 18 are arranged at intervals, and the adjacent air injection areas 17 and the air extraction areas 18 form a small air flow circulation space, the air in the space is kept fresh all the time through the supplement of the air injection areas 17, and the uniformity of the air in the vertical transmission direction is ensured by the uniform distribution mode of a plurality of air ports, so that the uniformity of the drying effect of the area is ensured, the substrate is dynamically transmitted forward, the substrate is gradually and uniformly dried after passing through the circulation units of the air injection areas 17 and the air extraction areas 18, each point in the transmission direction on the substrate passes through the circulation units with the same number, and the uniformity of the drying effect in the substrate transmission direction is ensured.
Then the gate valve 9 between the buffer cavity 6 and the blanking cavity 7 is opened, the dried substrate is conveyed into the blanking cavity 7, the gate valve 9 between the buffer cavity 6 and the blanking cavity 7 is closed after the substrate is completely conveyed, the blanking cavity 7 is vacuumized to the atmosphere, then the gate valve 9 between the blanking cavity 7 and the blanking platform 8 is opened, and the dried substrate is conveyed to the blanking platform 8, so that the substrate finishes all processes and enters the next process.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The linear vacuum drying equipment is characterized by comprising a feeding area, a drying area and a discharging area which are sequentially communicated, and a vacuum regulation and control system for controlling the vacuum state of the feeding area, the drying area and the discharging area;
the drying area comprises a front buffer cavity (3), a drying cavity (4) and a rear buffer cavity (6) which are sequentially communicated, a gas spraying system (11) is arranged in the drying cavity (4), and a heating system (12) is arranged at the bottom in the drying cavity (4);
the gas spraying system (11) comprises gas spraying areas (17) and gas extraction areas (18) which are arranged at intervals and are alternately and repeatedly arranged.
2. The linear vacuum drying apparatus of claim 1, wherein: the air injection area (17) and the air extraction area (18) both comprise a plurality of air ports, the air extraction area (18) is arranged in a groove relative to the air injection area (17), the diameters of the air ports are 0.5-5 mm, the width of the groove is 0.5-5 mm, and the length of the groove is 1-1000 mm.
3. The linear vacuum drying apparatus of claim 1, wherein: the length of an effective air injection area of the air injection area (17) is larger than the width of the substrate to be dried in the direction vertical to the conveying direction, and is specifically larger than 1 cm-10 cm.
4. The linear vacuum drying apparatus of claim 1, wherein: the gas spraying system (11) is fixed on a parallel surface of a surface to be dried after the substrate to be dried is transmitted to the drying cavity (4), and the distance between the bottom surface of the gas spraying system (11) and two parallel surfaces of the upper surface of the substrate to be dried is 2-200 mm.
5. The linear vacuum drying apparatus of claim 1, wherein: the gas sprayed by the gas spraying system (11) comprises one or more mixed gases of nitrogen, hydrogen, dry air, oxygen, ammonia gas and the like.
6. The linear vacuum drying apparatus of any one of claims 1 to 5, wherein: the material loading region comprises a material loading platform (1) and a material loading cavity (2), the material unloading region comprises a material unloading cavity (7) and a material unloading platform (8), the material loading platform (1) is connected with the material loading cavity (2) through a front buffer cavity (3) and a drying cavity (4) through a rear buffer cavity (6), the material unloading cavity (7) is communicated with the material unloading platform (8) in sequence, the material loading platform (1) is connected with the material loading cavity (2) through a front buffer cavity (3), the rear buffer cavity (6) is connected with the material unloading cavity (7) through a door valve (9), and the material unloading cavity (7) is connected with the material unloading platform (8) through the door valve (9).
7. The linear vacuum drying apparatus of claim 6, wherein: the vacuum regulation and control system comprises a vacuum pump (10), wherein the vacuum pump (10) is communicated with the feeding cavity (2) and the discharging cavity (7) through a first electromagnetic valve (14), a second electromagnetic valve (16) and a three-way pipe (13).
8. The linear vacuum drying apparatus of claim 1, wherein: the air-jet system is characterized by further comprising an inflating pump (19) and an air suction pump (20), wherein the inflating pump (19) is communicated with the air jet area (17) so as to adjust the air jet flow of the air jet area (17) by controlling the inflating pump (19), the air inlet flow of the whole equipment is 0.2 slm-200 slm, and the air suction pump (20) is communicated with the air suction area (18).
9. The linear vacuum drying apparatus of claim 1, wherein: the number of the drying chambers (4) is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123005319.8U CN218034024U (en) | 2021-12-01 | 2021-12-01 | Linear vacuum drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123005319.8U CN218034024U (en) | 2021-12-01 | 2021-12-01 | Linear vacuum drying equipment |
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| Publication Number | Publication Date |
|---|---|
| CN218034024U true CN218034024U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123005319.8U Active CN218034024U (en) | 2021-12-01 | 2021-12-01 | Linear vacuum drying equipment |
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| CN (1) | CN218034024U (en) |
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2021
- 2021-12-01 CN CN202123005319.8U patent/CN218034024U/en active Active
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