CN116558264A - Cold and hot double-air-flow drying system - Google Patents

Cold and hot double-air-flow drying system Download PDF

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Publication number
CN116558264A
CN116558264A CN202210102306.2A CN202210102306A CN116558264A CN 116558264 A CN116558264 A CN 116558264A CN 202210102306 A CN202210102306 A CN 202210102306A CN 116558264 A CN116558264 A CN 116558264A
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China
Prior art keywords
air
hot
cold
hot air
cold air
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CN202210102306.2A
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Chinese (zh)
Inventor
黄乃为
黄翊豪
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Individual
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Individual
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Priority to CN202210102306.2A priority Critical patent/CN116558264A/en
Publication of CN116558264A publication Critical patent/CN116558264A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/003—Supply-air or gas filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
    • F25B9/04—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect using vortex effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/02—Drying solid materials or objects by processes not involving the application of heat by using ultrasonic vibrations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention provides a cold and hot double-air-flow drying system which comprises an air blower, a plurality of vortex tube modules, a hot air storage barrel, a first air blower, a first hot air knife body, a cold air storage barrel, a second air blower, a first cold air knife body and a controller. The air blower is used for receiving external air and outputting clean air through the air filtering module. Each of the plurality of vortex tube modules has an air inlet port, a hot air port and a cold air port, and each of the plurality of vortex tube modules is connected to the blower to receive clean air and to output hot air and cold air at the corresponding hot air port and cold air port, respectively. The side of the hot air storage barrel is provided with a plurality of voltage doublers which are respectively connected with hot air outlets of the vortex tube modules to store hot air. The side edge of the cold air storage barrel is connected with cold air inlets of the vortex tube modules to store cold air.

Description

Cold and hot double-air-flow drying system
Technical Field
The invention relates to an air knife system, in particular to a cold and hot double-air-flow drying system capable of simultaneously generating a cold air knife and a hot air knife.
Background
The process of cleaning the glass substrate and the circuit substrate of the flat panel display is mainly performed by spraying the cleaning liquid onto the surface of the substrate, and when the cleaning device is used for cleaning the substrate, the substrate is dried while the residual cleaning liquid on the substrate is removed, for example, after the cleaning process is performed, if the residual cleaning liquid exists on the substrate, water spots (waters spots) are generated on the surface of the substrate, which may become factors for reducing the cleaning quality; therefore, the cleaned substrate is dried to perform the next processing process.
The existing drying mode of the substrate mostly adopts an air knife to dry the cleaning liquid, and the main principle of the air knife is to generate high-pressure air by generating high-speed air flow so as to quickly dry the substrate. In detail, the air knife is provided with an air inlet and an air outlet on the body, and the air flow flowing in from the air inlet forms high-speed air flow to blow out from the air outlet by means of the structural dimensional change of the air inlet and the air outlet, so that the air knife is formed. With the prior air knife structure, the body of the air knife is provided with a long and narrow runner leading to the minimum air chamber at the upper half part, and the two sides of the long and narrow runner are provided with assembly holes as air outlets, and the air knife can be locked on the body by utilizing screws to pass through the assembly holes, and the width of the long and narrow runner is adjusted by the tightness of the operation screws, so as to control the air quantity. However, when the air knife is in operation, after being heated and deformed, the screw is easy to be clamped, the tightness cannot be adjusted, and even the screw is broken or damaged due to excessive operation, so that the efficiency of the air knife is affected; in addition, the screw penetrates through the long and narrow runner, and when the air flow in the air chamber passes through the long and narrow runner to the outside, the air flow is blocked by the screw, so that the air outlet is uneven, and the drying effect is affected.
The prior art high pressure air used to blow dry the panel is generated by an "air knife" located above and below. The air knife is to set a fine air outlet on a device with proper inner space, the inner space is let in with high pressure air, the high pressure air is ejected out from the air outlet at high speed to form a blade-like air surface, so that the upper and lower air surfaces blow the moisture on the upper and lower surfaces of the plate. The traditional air knife structure is formed by integrally bending a metal plate or extruding an aluminum material, wherein one end of the metal plate is in a circular tube shape, the other end of the metal plate is in a wedge shape, two ends of the metal plate jointly form a wedge-shaped end, and an air outlet like a gap is formed at the wedge-shaped end. One end of the air knife is sealed, and high-pressure air enters from the other end of the air knife and is blown out from the air outlet to form a blade-shaped air surface. However, in the traditional air knife structure, when high-pressure air is extruded out of the air outlet from the inside of the wide circular tube, the pressure of the high-pressure air can push the wedge-shaped side wall of the air outlet to expand the width of the air outlet, so that the air speed of the high-pressure air during blowing is reduced; even the wedge-shaped side wall is dithered to make the blown high-pressure air unstable. In addition, the traditional air knife blows cold air to remove moisture on the plate, and then the plate is sent into a drying device for drying operation; in this way, if the moisture on the plate is not completely removed, i.e. the plate is sent to the drying device, water marks are left after the position of the residual moisture is dried.
In addition, for the plate with larger traditional thickness, the water on the plate can be removed by utilizing the existing air knife to achieve the expected effect, but for the plate with increasingly thinner thickness, the plate can be excessively deflected by the high-pressure air acted on the plate, so that the clamping plate phenomenon is caused in the conveying process. In addition, the current circuit board or glass substrate needs a large amount of electric heat and compressed air during drying, and under the requirements of energy consumption double control and global carbon reduction, the energy saving becomes the necessary development direction of industry
Therefore, how to solve the above-mentioned problems and disadvantages of the prior art is a subject to be developed by the related industry.
Disclosure of Invention
The invention provides a cold and hot double-air-flow drying system, which can simultaneously generate cold and hot air, store and apply a hot air knife and a cold air knife to a drying program of a plate, so as to greatly improve the production qualification rate, reduce the production cost and reduce the energy consumption, and because the electric heater is greatly reduced or not used, 6 groups of electric heaters are needed up to 5KW in the existing drying device, the energy consumption of drying is very high, and simultaneously, the use of the electric heater also causes the air flow channel of a drying air fluid and a plurality of oxidized dust generated by the electric heater.
The invention provides a cold and hot double-air-flow drying system, which is particularly used for drying a plate. The cold and hot double-air-flow drying system comprises an air blower, a plurality of vortex tube modules, a hot air storage barrel, a first air blower, a first hot air knife body, a cold air storage barrel, a second air blower, a first cold air knife body and a controller. The air blower is internally provided with an air filtering module, and is used for receiving external air and outputting clean air through the air filtering module. Each of the plurality of vortex tube modules is provided with an air inlet, a hot air inlet and a cold air inlet, and each air inlet of the plurality of vortex tube modules is connected to the air blower to receive clean air and respectively outputs hot air and cold air at the corresponding hot air inlet and cold air inlet. The side of the hot air storage barrel is provided with a plurality of voltage doublers and is respectively connected with hot air outlets of the vortex tube modules to store hot air, wherein the hot air storage barrel is provided with a hot air outlet. The first air blower is connected to the hot air output port of the hot air storage barrel and is used for conveying hot air. The first hot air knife body is connected to the first blower to receive hot air, and is provided with a first hot air knife air inlet and a first hot air knife air outlet. The side edge of the cold air storage barrel is connected with cold air inlets of the vortex tube modules to store cold air, and the cold air storage barrel is provided with a cold air outlet. The second air blower is connected to the cold air output port of the cold air storage barrel and used for transporting cold air. The first cold air knife body is connected to the second blower to receive cold air, and the cold air knife body is provided with a first cold air knife air inlet and a first cold air knife air outlet. The controller is connected to the first blower and the second blower and is used for controlling at least the gas flow rate, the gas pressure, the gas temperature and the working frequency.
In an embodiment of the invention, the hot and cold dual-air-flow drying system further includes a third blower, a second hot air knife body, a fourth blower and a second cold air knife body. The third air blower is connected to the controller and the first hot air return air outlet of the first hot air knife body, and is used for conveying hot air. The second hot air knife body is connected to the third blower to receive hot air, and is provided with a second hot air knife air inlet and a second hot air knife air outlet. The fourth air blower is connected to the controller and the first cold air return air outlet of the first cold air knife body, and is used for conveying cold air. The second cold air knife body is connected to the fourth blower to receive cold air, and the second cold air knife body is provided with a second cold air knife air inlet and a second cold air knife air outlet.
In an embodiment of the invention, the hot and cold dual-air-flow drying system further includes a first pressure detector, which is connected to the hot air storage tank and the controller, and the first pressure detector is used for detecting the air pressure in the hot air storage tank.
In an embodiment of the invention, the cold and hot dual-air-flow drying system further includes a second pressure detector, which is connected to the cold air storage tank and the controller, and the second pressure detector is used for detecting the air pressure in the cold air storage tank.
In an embodiment of the invention, the hot and cold dual-air-flow drying system further includes a first temperature detector, which is connected to the hot air storage tank and the controller, and the first temperature detector is used for detecting the temperature of the air in the hot air storage tank.
In an embodiment of the invention, the cold and hot dual-air-flow drying system further includes a second temperature detector, which is connected to the cold air storage tank and the controller, and the second temperature detector is used for detecting the temperature of the air in the cold air storage tank.
In an embodiment of the invention, the hot and cold dual-air-flow drying system further includes a first flow rate detector, which is connected to the hot air storage tank and the controller, and the first flow rate detector is used for detecting the flow rate of the air in the hot air storage tank.
In an embodiment of the invention, the cold and hot dual-air-flow drying system further includes a second flow rate detector, which is connected to the cold air storage tank and the controller, and the second flow rate detector is used for detecting the air flow rate in the cold air storage tank.
In an embodiment of the invention, the first cold air outlet of the first cold air knife body is formed by a first cold air outlet and a first cold air return opening, wherein the first cold air outlet has positive pressure and the first cold air return opening has negative pressure so as to induce ambient airflow to multiply and accelerate the output airflow of the first cold air outlet, and cold air returned by the first cold air return opening is transported to the second cold air inlet of the second cold air knife body by a fourth blower.
In an embodiment of the invention, the first hot air outlet of the first hot air knife body is formed by a first hot air outlet and a first hot air return opening, wherein the first hot air outlet has positive pressure and the first hot air return opening has negative pressure so as to induce ambient airflow to multiply and accelerate the output airflow of the first hot air outlet, and the hot air returned by the first hot air return opening is transported to the second hot air inlet of the second hot air knife body by a third blower.
In an embodiment of the present invention, if the air pressure in the hot air storage tank exceeds a first preset air pressure threshold value, the controller controls the hot air storage tank to perform the pressure relief operation.
In an embodiment of the present invention, if the air pressure in the cold air storage tank exceeds a second preset air pressure threshold value, the controller controls the cold air storage tank to perform the pressure relief operation.
In an embodiment of the invention, the dual hot and cold air stream drying system further includes an ultrasonic resonator. The ultrasonic resonator is connected to the controller, the first hot air knife body, the first cold air knife body, the second hot air knife body and the second cold air knife body, and the ultrasonic resonator generates ultrasonic waves through the control of the controller so as to enable the plate to resonate, and then water molecules are vibrated out of the deep holes of the plate.
In summary, the cold and hot double-air-flow drying system disclosed by the invention has the following effects:
1. simultaneously generating a hot air knife and a cold air knife;
2. modularized and mirror-image expansion is realized by a plurality of groups of hot air knives and a plurality of groups of cold air knives;
3. after high-temperature drying, the temperature can be quickly reduced to remove water marks, so that the qualification rate of the post-processing is improved;
4. the production cost is reduced and the energy consumption is reduced.
The objects, technical contents, features and effects achieved by the present invention will be more easily understood by the detailed description of the embodiments below.
Drawings
Fig. 1 is a schematic diagram of a cold and hot dual-air-flow drying system according to the present invention.
Fig. 2 is a schematic diagram of another architecture of the hot and cold dual-air drying system according to the present invention.
Fig. 3 is a schematic diagram of a cold and hot dual-air-flow drying system according to another embodiment of the present invention.
Fig. 4 is a schematic structural view of a first hot air knife air outlet of the first hot air knife body according to the present invention.
Fig. 5 is a schematic structural view of a first air outlet of the first air knife body according to the present invention.
Fig. 6 is a schematic diagram of an application of the cold and hot dual-air-flow drying system of the present invention.
Reference numerals illustrate: 100-a cold and hot double-air-flow drying system; 111-an air filtration module; 110-an air blower; 120-vortex tube module; 121-an air inlet port; 122-hot air through holes; 123-cold air inlet; 130-a hot air storage barrel; 131-voltage doubler; 132—a hot air outlet; 140-a first blower; 150-a first hot air knife body; 151A-a first hot air knife air inlet; 151B-a first hot air return air outlet; 152-a first hot air knife air outlet; 152A-a first hot air outlet; 152B-a first hot air return port; 155-pressing rollers; 160-cold air storage barrels; 162-a cool air outlet; 170-a second blower; 180-a first cold air knife body; 181A-a first cold air knife air inlet; 181B-a first cool air return air outlet; 182-a first cold air knife air outlet; 182A-a first cool air outlet; 182B-a first cool air return port; 185-pressing roller; 190-a controller; 210-a first pressure detector; 220-a second pressure detector; 310-a first temperature detector; 320-a second temperature detector; 410-a first flow rate detector; 420-a second flow rate detector; 510-a third blower; 520-a second hot air knife body; 521A-a second hot air knife air inlet; 522-a second hot air knife air outlet; 530-fourth blower; 540-a second cold air knife body; 541A-a second cold air knife air inlet; 542-a second cold air knife air outlet; 610-an ultrasonic resonator; AG-hot air; BG-cool air; CG-clean air; EXG-outside air; PA-plate.
Detailed Description
In order to solve the problems caused by the use of the air knife in the drying process of the existing plate, the inventor has studied and developed for many years to improve the problems of the existing products, and then will describe in detail how to achieve the most efficient functional appeal by using a cold and hot double-air-flow drying system.
Referring to fig. 1, fig. 1 is a schematic diagram of a dual hot and cold air drying system according to the present invention. As shown, the hot and cold dual-blast drying system 100 of the present disclosure can effectively and simultaneously generate, store and apply hot air or cold air into the apparatus, especially for performing a drying process on a plate, wherein the plate is a thin plate or a thick plate, and the plate is a circuit board or a glass substrate. The cold and hot dual air flow drying system 100 includes an air blower 110, a plurality of vortex tube modules 120, a hot air storage barrel 130, a first blower 140, a first hot air knife body 150, a cold air storage barrel 160, a second blower 170, a second cold air knife body 180 and a controller 190, wherein the hot air knife and the cold air knife of the embodiment have the capability of automatically adjusting the height so as to realize the best fluid effect of the drying device.
Regarding the blower 110, the blower 110 has at least one air filtering module 111 inside and is used for filtering dirt and dust of external air, and the blower 110 is used for receiving the external air EXG and outputting clean air CG through the air filtering module 111. Regarding the vortex tube modules 120, each of the plurality of vortex tube modules 120 has an air inlet 121, a hot air inlet 122 and a cold air inlet 123, and each of the air inlet 121 of the plurality of vortex tube modules 120 is connected to the blower 110 to receive clean air CG and outputs hot air AG and cold air BG at the corresponding hot air inlet 122 and cold air inlet 123, respectively. In the embodiment of the invention, the dual hot and cold air drying system 100 has a whole row or array of vortex tube modules 120, which can utilize the principle of vortex tube to simultaneously generate hot air AG or cold air BG, that is to say, the method of injecting air into one end of the vortex tube and discharging hot air and cold air from the other end of the vortex tube is used, and the method of generating cold and hot air flows by utilizing different laminar angular speeds of air flows is utilized. Next, it is further described how to effectively and safely store the hot air AG or the cold air BG generated by the vortex tube module 120.
Regarding the hot air storage tub 130, the hot air storage tub 130 of the embodiment of the present invention has a plurality of voltage doublers 131 at the sides thereof and is respectively connected to the hot air outlets 122 of the plurality of vortex tube modules 120 to store the hot air AG, wherein the hot air storage tub 130 has a hot air outlet 132. That is, the hot air AG generated by the vortex tube module 120 passes through the voltage doubler 131 and then enters the hot air storage tub 130 to be stored. Next, regarding the first blower 140, the first blower 140 is connected to the hot air output port 132 of the hot air storage tub 130, and the first blower 140 serves to transport the hot air AG and compress the hot air AG. Regarding the first hot air knife body 150, the first hot air knife body 150 is connected to the first blower 140 to receive hot air AG, and the first hot air knife body 150 has a first hot air knife air inlet 151A, a first hot air return air outlet 151B (shown in fig. 2), and a first hot air knife air outlet 152. Further, when the hot air AG stored in the hot air storage tub 130 is to be used, the hot air AG flows out from the hot air outlet 132 of the hot air storage tub 130 and enters the first hot air knife body 150 through the first blower 140 by the control program of the switch and the first blower 140. Under the condition of compressing the hot air AG and due to the design of the caliber of the first hot air knife body 150, the hot air AG flows from the first hot air knife air outlet 152 of the first hot air knife body 150 at a certain flow rate, so that the plate can be subjected to a hot air drying process to take away a large amount of moisture. In the above process, the gas temperature, gas flow rate and gas flow rate of the hot air AG may be designed or dynamically adjusted by a designer according to the environmental parameters or the component parameters.
The embodiment of the cold and hot dual-air drying system 100 of the present invention can also have the effect of simultaneously generating cold air knives to rapidly cool the plate at high temperature just after the hot air drying process, so as to avoid any water mark or other non-ideal substances. In other words, in general, when manufacturing a board such as a printed circuit board, it is necessary to go through a plurality of wet processes and then enter the post-process; based on the quality requirement, the residual moisture on the plate must be thoroughly removed after the wet process is completed and before the plate enters the post process, otherwise, the residual water drops and even water marks can affect the qualification rate of the post process. Conventionally, the method for removing the residual moisture of the plate after the wet process must be performed by two procedures, namely drying and baking; the drying procedure is to blow high pressure air to the upper and lower surfaces of the plate in the inclined direction during the conveying process of the plate, so that the residual moisture on the upper and lower surfaces of the plate is thoroughly removed, then the plate enters the drying procedure to completely dry the plate, and finally the plate can enter the post-processing procedure; if the moisture on the plate cannot be completely removed or the plate is naturally cooled (slowly cooled) in the drying process, water marks are left after the plate is dried, so that the qualification rate of the subsequent process is affected. The related actions of the cold air knife of the cold and hot dual air flow drying system 100 to rapidly cool down to completely remove the water mark will be further described.
Regarding the cold air reservoir 160, the side of the cold air reservoir 160 is connected to the cold air inlets 123 of the plurality of vortex tube modules 120 to store the cold air BG, wherein the cold air reservoir 160 has a cold air outlet 162. That is, the cold air BG generated by the vortex tube module 120 directly enters the cold air storage 160 to be stored. Regarding the second blower 170, the second blower 170 is connected to the cold air output port 162 of the cold air storage 160, and the second blower 170 serves to transport and compress the cold air BG. Regarding the second cold air knife body 180, the second cold air knife body 180 is connected to the second blower 170 to receive the cold air BG, and the second cold air knife body 180 has a first cold air knife air inlet 181A, a first cold air return air outlet 181B (shown in fig. 2), and a first cold air knife air outlet 182. Further, when the cold air BG stored in the cold air storage 160 is to be used, the cold air BG flows out from the cold air outlet 162 of the cold air storage 160 and enters the first cold air knife body 180 through the second air blower 170 by the action of the control program of the switch and the second air blower 170. Under the condition of compressing the cold air BG and due to the design of the caliber of the first cold air knife body 180, the cold air BG flows from the first cold air knife air outlet 182 of the first cold air knife body 180 at a certain flow rate, so that the cold air rapid cooling program can be performed on the plate. In the above process, the gas temperature, gas flow rate and gas flow rate of the cold air BG can be designed or dynamically adjusted by a designer according to the environmental parameters or the component parameters.
Next, referring to fig. 2, fig. 2 is a schematic diagram of another structure of the hot and cold dual-air-flow drying system according to the present invention. First, with respect to the controller 190, the controller 190 is connected to the first blower 140, the second blower 170, the third blower 510, and the fourth blower 530. The controller 190 is used for controlling at least the air flow rate, air pressure, air temperature and operating frequency of the hot air AG or the cold air BG (the hot and cold dual-air drying system 100 has a frequency conversion effect). In another embodiment, the controller 190 may be further remotely controlled and adjusted by a built-in RF module and Internet connection to a remote control system (not shown). The hot and cold dual air flow drying system 100 of the present invention can be further expanded by hot air knife or cold air knife modules, and the number of the hot and cold air knife modules is not limited. For example, as shown in fig. 2, the cold and hot dual-air-flow drying system 100 further includes a third blower 510, a second hot air knife body 520, a fourth blower 530, and a second cold air knife body 540. The third blower 510 is connected to the controller 190 and the first hot air return outlet 151B of the first hot air knife body 150, and the third blower 510 is used for transporting hot air AG to the second hot air knife inlet 521A of the second hot air knife body 520. The second hot air knife body 520 is connected to the third blower 510 to receive the hot air AG, and the second hot air knife body 520 has a second hot air knife air inlet 521A and a second hot air knife air outlet 522. The fourth blower 530 is connected to the controller 190 and the first cold air return air outlet 181B of the first cold air knife body 180, and the fourth blower 530 is used for transporting the cold air BG to the second cold air knife air inlet 541A of the second cold air knife body 540. The second cold air knife body 540 is connected to the fourth blower 530 to receive the cold air BG, and the second cold air knife body 540 has a second cold air knife air inlet 541A and a second cold air knife air outlet 542. The expansion embodiments take two hot air knife bodies 150 and 520 and two cold air knife bodies 180 and 540 as examples, and N hot air knife bodies and N cold air knife bodies can be used for expansion in practical application, where N is a positive integer greater than one, for example, 10 groups of hot air knife bodies and 10 groups of cold air knife bodies.
Next, referring to fig. 3, fig. 3 is a schematic diagram of a cold and hot dual-air-flow drying system according to the present invention. The dual hot and cold air stream drying system 100 further comprises a first pressure detector 210, a second pressure detector 220, a first temperature detector 310, a second temperature detector 320, a first flow rate detector 410, a second flow rate detector 420 and an ultrasonic resonator 610. The first pressure detector 210 is connected to the hot air storage tank 130 and the controller 190, and the first pressure detector 210 is used for detecting the air pressure in the hot air storage tank 130. The second pressure detector 220 is connected to the cold air storage 160 and the controller 190, and the second pressure detector 220 is used for detecting the air pressure in the cold air storage 160. Further, if the air pressure in the hot air storage tank 130 exceeds a first preset air pressure threshold, the controller 190 controls the hot air storage tank 130 to perform the pressure relief operation, wherein the first preset air pressure threshold can be set by a designer according to the actual situation or the requirement; if the pressure of the air in the cold air storage 160 exceeds the second preset air pressure threshold, the controller 190 controls the cold air storage 160 to perform the pressure relief operation, wherein the second preset air pressure threshold can be set by the designer according to the actual situation or the requirement.
In addition, the first temperature detector 310 is connected to the hot air storage tank 130 and the controller 190, and the first temperature detector 310 is used for detecting the temperature of the air in the hot air storage tank 130. The second temperature detector 320 is connected to the cold air storage 160 and the controller 190, and the second temperature detector 320 is used for detecting the temperature of the air in the cold air storage 160. Further, the temperature of the air in the hot air tank 130 and the temperature of the air in the cold air tank 160 can be designed by a designer according to practical situations or requirements, and in an embodiment, the temperature of the air can be as high as 120 degrees celsius (in the hot air tank 130) or as low as minus 10 degrees celsius (in the cold air tank 160), but not limited to this data. In addition, the first flow rate detector 410 is connected to the hot air storage 130 and the controller 190, the first flow rate detector 410 is used for detecting the flow rate of the air in the hot air storage 130, and in another embodiment, the first flow rate detector 410 is further connected to the first hot air knife body 150 to detect the flow rate of the air at the first hot air knife air outlet 152 (not shown). The second flow rate detector 420 is connected to the cold air storage 160 and the controller 190, and the second flow rate detector 420 is used for detecting the flow rate of the air in the cold air storage 160, in another embodiment, the second flow rate detector 420 is further connected to the first cold air knife body 180 to detect the flow rate of the air at the first cold air knife air outlet 182 (not shown). In addition to controlling the first blower 140 and the second blower 170 by the controller 190 to control the gas flow rate, the gas flow rate may be controlled by the size of the inlet and outlet apertures of the first hot air knife body 150 and the size of the inlet and outlet apertures of the first cold air knife body 180. Finally, the ultrasonic resonator 610 is connected to the controller 190, the first hot air knife body 150, the first cold air knife body 180, the second hot air knife body 520 and the second cold air knife body 540, and the ultrasonic resonator 610 generates ultrasonic waves through the control of the controller 190 to resonate the plate, so that water molecules are vibrated out of the deep holes of the plate, and the air knife can further perform a more complete drying process, wherein the ultrasonic resonator 610 has a power source and a vibrator, and the vibrator is connected to the first hot air knife body 150 and the pressure roller of the first cold air knife body 180. Further, referring to fig. 3 to 5, fig. 4 is a schematic structural diagram of a first hot air knife air outlet of the first hot air knife body of the present invention. Fig. 5 is a schematic structural view of a first air outlet of the first air knife body according to the present invention. The ultrasonic wave generated by the ultrasonic resonator 610 resonates the pressure rollers 155 and 185, and thus resonates the panel PA, wherein the pressure rollers 155 and 185 are in contact with the panel PA.
In fig. 4 and 5, it should be noted that the hot air outlet 152 of the first hot air knife body 150 is composed of a first hot air outlet 152A and a first hot air return 152B, wherein the first hot air outlet 152A has a positive pressure and the first hot air return 152B has a negative pressure, so as to induce the ambient air flow to multiply and accelerate the output air flow of the first hot air outlet 152A. In this embodiment, as shown in fig. 4, the first hot air knife body 150 of the hot and cold dual-air-flow drying system 100 is performing a high temperature drying process on a panel PA, the pressing roller 155 moves on the panel PA (the pressing roller 155 contacts the panel PA or does not contact the panel PA) and also has a hot air guiding effect, hot air AG flows out of the first hot air outlet 152A rapidly to dry the panel PA and hot air flows back into the first hot air knife body 150 again from the first hot air return 152B, and then the third blower 510 draws hot air AG from the first hot air knife body 150 through the first hot air return 151B and conveys the hot air AG to the second hot air knife air inlet 521A of the second hot air knife body 520. The design can make the first hot air outlet 152A exhibit positive pressure and the first hot air return 152B exhibit negative pressure (the second hot air outlet 522 of the second hot air knife body 520 is also the same design, but the hot air AG returned and pumped by the third blower 510) further multiply the air flow rate and air flow rate of the first hot air outlet 152A, thereby increasing the drying effect by the high-speed air flow.
On the other hand, the cold air knife outlet 182 of the first cold air knife body 180 is composed of a first cold air outlet 182A and a first cold air return 182B, wherein the first cold air outlet 182A has positive pressure and the first cold air return 182B has negative pressure, so as to induce the ambient air flow to multiply and accelerate the output air flow of the first cold air outlet 182A. In this embodiment, as shown in fig. 5, the first cold air knife body 180 of the cold and hot dual-air-flow drying system 100 is performing a rapid cooling process on a panel PA just after the drying process of the first cold air knife body 150, the pressure roller 185 moves on the panel PA (the pressure roller 185 contacts the panel PA or does not contact the panel PA) and also has a cold air guiding effect, the cold air BG rapidly flows out of the first cold air outlet 182A to rapidly cool the panel PA and the cold air will flow back into the first cold air knife body 180 again from the first cold air return 182B, and then the fourth blower 530 draws the cold air BG from the first cold air knife body 180 through the first cold air return outlet 181B and conveys the cold air to the second cold air inlet 541A of the second cold air knife body 540. The design can make the first cold air outlet 182A exhibit positive pressure and the first cold air return 182B exhibit negative pressure (the second cold air outlet 542 of the second cold air knife body 540 is also of the same design, but the cold air BG returned and pumped back by the fourth blower 530) further multiply the air flow rate and air flow rate of the first cold air outlet 182A, thereby increasing the drying effect by the high-speed air flow. In this way, the first cold air knife body 180 can quickly cool the panel PA, and generate high-speed air flow with the second cold air knife body 540, so as to remove the moisture in the hole of the panel PA. . Through the above control to the gas temperature, the gas pressure, the gas flow rate and the working frequency, the cold and hot double-air flow drying system 100 can be applied to the thick plate member and the thin plate member, and when high-pressure air acts on the thin plate member, excessive deflection of the plate member is not caused, and further, a clamping plate phenomenon is not caused in the conveying process.
Referring to fig. 6, fig. 6 is a schematic diagram illustrating an application of the hot and cold dual-air-flow drying system according to the present invention. In one embodiment, the panel PA enters the drying process after the wet process, and the panel PA is dried by a set of hot and cold dual-air drying systems 100 on the left and right or above and below during the drying process. The overall operation mechanism, as shown in fig. 1 to 5, can almost completely remove moisture from the panel PA without leaving any water mark when the panel PA is dried by the dual hot and cold air flow drying system 100 of the present invention.
In summary, the cold and hot double-air-flow drying system disclosed by the invention has the following effects:
1. simultaneously generating a hot air knife and a cold air knife;
2. modularized and mirror-image expansion is realized by a plurality of groups of hot air knives and a plurality of groups of cold air knives;
3. after high-temperature drying, the temperature can be quickly reduced to remove water marks, so that the qualification rate of the post-processing is improved;
4. the production cost is reduced and the energy consumption is reduced.
The above description is illustrative of the invention and is not to be construed as limiting, and it will be understood by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (13)

1. A cold and hot double-blast drying system for drying a plate, comprising:
the air blower is internally provided with an air filtering module and is used for receiving external air and outputting clean air through the air filtering module;
the vortex tube modules are respectively provided with an air inlet, a hot air inlet and a cold air inlet, each air inlet of the vortex tube modules is connected to the air blower to receive the clean air, and a hot air and a cold air are respectively output at the corresponding hot air inlet and cold air inlet;
the side of the hot air storage barrel is provided with a plurality of voltage multipliers and is respectively connected to the hot air ports of the vortex tube modules so as to store the hot air, wherein the hot air storage barrel is provided with a hot air output port;
a first blower connected to the hot air outlet of the hot air storage tank, the first blower being configured to transport the hot air;
the first hot air knife body is connected to the first blower to receive the hot air, and is provided with a first hot air knife air inlet and a first hot air knife air outlet;
the side edges of the cold air storage barrel are connected to the cold air inlets of the vortex tube modules so as to store the cold air, wherein the cold air storage barrel is provided with a cold air output port;
a second blower connected to the cool air outlet of the cool air storage tank, the second blower being configured to transport the cool air;
the first cold air knife body is connected to the second blower to receive the cold air, and is provided with a first cold air knife air inlet and a first cold air knife air outlet; and
and a controller connected to the first blower and the second blower for controlling at least one of a gas flow rate, a gas pressure, a gas temperature and a working frequency.
2. The dual hot and cold air drying system of claim 1, further comprising:
a third blower connected to the controller and the first hot air return outlet of the first hot air knife body, the third blower being configured to transport the hot air;
the second hot air knife body is connected to the third blower to receive the hot air, and is provided with a second hot air knife air inlet and a second hot air knife air outlet;
a fourth blower connected to the controller and a first cold air return outlet of the first cold air knife body, the fourth blower being configured to transport the cold air; and
the second cold air knife body is connected to the fourth blower to receive the cold air, and is provided with a second cold air knife air inlet and a second cold air knife air outlet.
3. The dual hot and cold air drying system according to claim 1, further comprising a first pressure detector connected to the hot air reservoir and the controller, the first pressure detector detecting the air pressure in the hot air reservoir.
4. The dual hot and cold air drying system according to claim 1, further comprising a second pressure detector connected to the cold air storage tank and the controller, the second pressure detector detecting the air pressure in the cold air storage tank.
5. The dual hot and cold air drying system according to claim 1, further comprising a first temperature detector connected to the hot air reservoir and the controller, the first temperature detector being configured to detect the temperature of the air in the hot air reservoir.
6. The dual hot and cold air drying system according to claim 1, further comprising a second temperature detector connected to the cold air storage tank and the controller, the second temperature detector being configured to detect the temperature of the air in the cold air storage tank.
7. The dual hot and cold air drying system according to claim 1, further comprising a first flow detector connected to the hot air reservoir and the controller, the first flow detector detecting the flow rate of the air in the hot air reservoir.
8. The dual hot and cold air drying system according to claim 1, further comprising a second flow detector connected to the cold air reservoir and the controller, the second flow detector detecting the flow rate of the air in the cold air reservoir.
9. The system of claim 2, wherein the first air outlet of the first air knife body comprises a first air outlet and a first air return, wherein the first air outlet has positive pressure and the first air return has negative pressure to induce ambient air flow to multiply and accelerate the output air flow of the first air outlet, wherein the air returned by the first air return is transported to the second air inlet of the second air knife body by the fourth blower.
10. The hot and cold dual-air-flow drying system according to claim 2, wherein the first hot air outlet of the first hot air knife body is composed of a first hot air outlet and a first hot air return, wherein the first hot air outlet has positive pressure and the first hot air return has negative pressure to induce ambient air flow to multiply and accelerate the output air flow of the first hot air outlet, wherein the hot air returned by the first hot air return is transported to the second hot air inlet of the second hot air knife body by the third blower.
11. The system of claim 1, wherein the controller is configured to control the hot air reservoir to perform the pressure relief operation if the air pressure in the hot air reservoir exceeds a first predetermined air pressure threshold.
12. The system of claim 1, wherein the controller is configured to control the cold air reservoir to perform the pressure relief operation if the air pressure in the cold air reservoir exceeds a second predetermined air pressure threshold.
13. The dual hot and cold air drying system of claim 1, further comprising:
the ultrasonic resonator is connected to the controller, the first hot air knife body, the first cold air knife body, the second hot air knife body and the second cold air knife body, and generates ultrasonic waves through the control of the controller so as to enable the plate to resonate, and then water molecules are vibrated out of the deep holes of the plate.
CN202210102306.2A 2022-01-27 2022-01-27 Cold and hot double-air-flow drying system Pending CN116558264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210102306.2A CN116558264A (en) 2022-01-27 2022-01-27 Cold and hot double-air-flow drying system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210102306.2A CN116558264A (en) 2022-01-27 2022-01-27 Cold and hot double-air-flow drying system

Publications (1)

Publication Number Publication Date
CN116558264A true CN116558264A (en) 2023-08-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210102306.2A Pending CN116558264A (en) 2022-01-27 2022-01-27 Cold and hot double-air-flow drying system

Country Status (1)

Country Link
CN (1) CN116558264A (en)

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