Gradient circulating temperature control system of ion-exchange membrane production equipment by casting method

Abstract

The utility model discloses a gradient circulation temperature control system of ion exchange membrane production equipment of flow -casting method relates to the technical field of ion exchange membrane production, including the organism, one side of organism is equipped with the unwinding mechanism for releasing ion exchange membrane, and the other side is equipped with the winding mechanism for winding ion exchange membrane, still includes: oven, its fixed connection is established in the organism, and is located between unwinding mechanism and winding mechanism, multistage temperature zone, it includes low temperature area, medium temperature area and high temperature area, and is arranged in oven along ion exchange membrane conveying direction in proper order, air inlet subassembly, it is used for sending the outside normal temperature air to multistage temperature zone, gradient temperature control subassembly, this gradient circulation temperature control system of ion exchange membrane production equipment of flow -casting method, through first ventilation pipe, second ventilation pipe and third ventilation pipe can output the wind of different temperature, and then make the oven be divided into three temperature zones: low temperature area, medium temperature area and high temperature area, make ion exchange membrane realize gradient drying in drying process.

Description

Technical Field

[0001] This utility model relates to the technical field of ion membrane production, specifically a gradient circulation temperature control system for a casting ion membrane production equipment. Background Technology

[0002] In the production of ion exchange membranes, the casting method (also known as the casting method) is an important preparation process. Its core step is to uniformly coat a polymer solution containing ion exchange groups (such as perfluorosulfonic acid resin solution) onto a substrate, and form a functional film with a specific microstructure by precisely controlling the solvent evaporation and phase transformation process.

[0003] Traditional casting production equipment typically employs a uniform temperature drying method, applying a constant temperature to the film layer throughout the entire drying and curing process. While this temperature control method offers simple equipment structure and convenient operation, it has drawbacks: uneven shrinkage of the ion-exchange membrane layer during drying can generate localized internal stress, and a uniform temperature cannot alleviate this stress accumulation, easily leading to microcracks or warping. Utility Model Content

[0004] The purpose of this invention is to provide a gradient circulation temperature control system for casting ion membrane production equipment to address the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gradient circulation temperature control system for a casting-based ion-exchange membrane production equipment, comprising a machine body, an unwinding mechanism for releasing the ion-exchange membrane on one side of the machine body, and a winding mechanism for winding the ion-exchange membrane on the other side; further comprising: an oven, which is fixedly connected to the machine body and located between the unwinding mechanism and the winding mechanism; a multi-level temperature zone, including a low-temperature zone, a medium-temperature zone, and a high-temperature zone, arranged sequentially in the oven along the ion-exchange membrane conveying direction; an air inlet assembly for supplying ambient air to the multi-level temperature zone; and a gradient temperature control assembly, which includes a heating chamber fixedly connected to the oven, wherein the heating chamber... The heating chamber is connected to the high-temperature zone via a first ventilation duct, the heating chamber to the medium-temperature zone via a second ventilation duct, and the heating chamber to the low-temperature zone via a third ventilation duct. The cross-sectional area of ​​the first ventilation duct is smaller than that of the second ventilation duct, and the cross-sectional area of ​​the second ventilation duct is smaller than that of the third ventilation duct. The second ventilation duct is connected to a first venturi tube, and the third ventilation duct is connected to a second venturi tube. The throat diameter of the first venturi tube is larger than that of the second venturi tube. Multiple air outlet components are installed one-to-one in the low-temperature zone, medium-temperature zone, and high-temperature zone of the oven to blow hot air from the low-temperature zone, medium-temperature zone, and high-temperature zone onto both sides of the ion exchange membrane.

[0006] Preferably, the air inlet assembly includes a main air inlet pipe fixedly connected to the heating chamber, the air outlet of the main air inlet pipe being connected to the interior of the heating chamber, and an air pump being provided on the main air inlet pipe.

[0007] Preferably, the air inlet end of the main air inlet pipe is provided with a first dustproof net via a disassembly mechanism. The disassembly mechanism includes a plurality of first magnets fixedly connected to the main air inlet pipe in a circumferential array, and a plurality of second magnets magnetically attracted to the first magnets are fixedly connected to the frame of the first dustproof net.

[0008] Preferably, each air outlet assembly includes multiple upper and lower air nozzles, with each upper and lower air nozzle equidistantly distributed along the ion membrane conveying direction, and each lower air nozzle corresponding to and staggered with each upper air nozzle; each upper and lower air nozzle in the high-temperature zone is connected to the first ventilation duct; each upper and lower air nozzle in the medium-temperature zone is connected to the second ventilation duct; and each upper and lower air nozzle in the low-temperature zone is connected to the third ventilation duct.

[0009] Preferably, the heating chamber is equipped with a heating resistor.

[0010] Preferably, the oven and the heating chamber are connected by a circulating air duct, and the circulating air duct is equipped with a circulating pump.

[0011] Preferably, the air inlet ends of both the first and second Venturi tubes are fixedly connected with a second dustproof net.

[0012] Preferably, the winding mechanism includes a winding roller rotatably connected to the machine body, a first motor fixedly connected to the machine body, and the output shaft of the first motor being coaxially and fixedly connected to the winding roller; the unwinding mechanism includes an unwinding roller rotatably connected to the machine body, a second motor fixedly connected to the machine body, and the output shaft of the second motor being coaxially and fixedly connected to the unwinding roller.

[0013] Preferably, the oven is provided with a guiding unit, which includes a plurality of guide rollers that are rotatably connected to the oven at equal intervals along the ion membrane conveying direction.

[0014] Preferably, the outer surface of the guide roller is a smooth surface.

[0015] In the above technical solution, the gradient circulation temperature control system of the casting ion membrane production equipment provided by this utility model, when the air inlet component sends the ambient temperature air into the heating chamber and is heated by the heating resistor, it is then sent into the corresponding high temperature zone, medium temperature zone, and low temperature zone through the first ventilation pipe, the second ventilation pipe, and the third ventilation pipe. Furthermore, with the cooperation of the corresponding first and second venturi tubes, the second ventilation pipe can be injected with ambient temperature air through the first venturi tube to cool the high temperature air inside the second ventilation pipe. Similarly, the third ventilation pipe can be injected with ambient temperature air through the second venturi tube to cool the high temperature air inside the third ventilation pipe. Preferably, due to the second ventilation pipe's... The cross-sectional area of ​​the first ventilator is smaller than that of the third ventilator so that the flow velocity of the high-temperature air in the second ventilator is greater than that in the third ventilator. Furthermore, the throat diameter of the first ventilator is smaller than that of the second ventilator, resulting in less ambient temperature air being drawn into the second ventilator through the first ventilator. Consequently, the temperature of the high-temperature air flowing into the medium-temperature zone from the second ventilator is lower than that of the high-temperature air injected into the high-temperature zone from the first ventilator. Similarly, with the throat diameter of the second ventilator being larger than that of the first ventilator, more ambient temperature air is drawn into the third ventilator through the second ventilator. Thus, the temperature of the high-temperature air injected into the low-temperature zone from the third ventilator is lower than that of the high-temperature air flowing into the medium-temperature zone from the second ventilator. Based on the above process, the first ventilation pipe, the second ventilation pipe, and the third ventilation pipe can output air at different temperatures, thereby dividing the oven into three temperature zones: a low temperature zone, a medium temperature zone, and a high temperature zone. This allows the ion exchange membrane to achieve gradient drying during the drying process, avoiding the formation of local internal stress due to uneven shrinkage during the drying process, which could cause microcracks or warping in the membrane layer. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the gradient temperature control component provided in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the circulating air duct provided in an embodiment of the present utility model;

[0020] Figure 4This is a schematic diagram of the air outlet component structure provided in an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the air intake component structure provided in an embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram of the disassembly mechanism provided in an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Machine body; 2. Unwinding mechanism; 3. Rewinding mechanism; 4. Drying oven; 5. Low temperature zone; 6. Medium temperature zone; 7. High temperature zone; 8. Air inlet assembly; 81. Main air inlet pipe; 82. Air pump; 9. Heating chamber; 10. First ventilation pipe; 11. Second ventilation pipe; 12. Third ventilation pipe; 13. First venturi tube; 14. Second venturi tube; 15. Air outlet assembly; 151. Upper air nozzle; 152. Lower air nozzle; 16. First dustproof net; 17. First magnet; 18. Second magnet; 19. Circulating air duct; 20. Circulating pump; 21. Guide roller. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] Please see Figure 1-6This utility model provides a gradient circulation temperature control system for a casting-type ion-exchange membrane production equipment, comprising a body 1, an unwinding mechanism 2 for releasing the ion-exchange membrane on one side of the body 1, and a winding mechanism 3 for winding the ion-exchange membrane on the other side. The winding mechanism 3 includes a winding roller rotatably connected to the body 1, and a first motor fixedly connected to the body 1, with the output shaft of the first motor coaxially fixedly connected to the winding roller. The unwinding mechanism 2 includes an unwinding roller rotatably connected to the body 1, and a second motor fixedly connected to the body 1, with the output shaft of the second motor coaxially fixedly connected to the unwinding roller. The gradient circulation temperature control system also includes an oven 4, multiple temperature zones, an air inlet assembly 8, a gradient temperature control assembly, and multiple air outlet assemblies 15. The oven 4 is fixedly connected to the body 1 and located between the unwinding mechanism 2 and the winding mechanism 3. The multiple temperature zones include a low-temperature zone 5, a medium-temperature zone 6, and a high-temperature zone 7, and are located along the ion-exchange membrane conveying direction. The components are arranged sequentially inside the oven 4; the air inlet assembly 8 is used to deliver ambient air to the multi-temperature zones; the gradient temperature control assembly includes a heating chamber 9 fixedly connected to the oven 4, the heating chamber 9 is connected to the high-temperature zone 7 through a first ventilation pipe 10, the heating chamber 9 is connected to the medium-temperature zone 6 through a second ventilation pipe 11, and the heating chamber 9 is connected to the low-temperature zone 5 through a third ventilation pipe 12. The cross-sectional area of ​​the first ventilation pipe 10 is smaller than that of the second ventilation pipe 11, the cross-sectional area of ​​the second ventilation pipe 11 is smaller than that of the third ventilation pipe 12, the second ventilation pipe 11 is connected to a first venturi tube 13, and the third ventilation pipe 12 is connected to a second venturi tube 14. The throat diameter of the first venturi tube 13 is larger than that of the throat diameter of the second venturi tube 14; multiple air outlet assemblies 15 are correspondingly arranged in the low-temperature zone 5, the medium-temperature zone 6, and the high-temperature zone 7 of the oven 4, so that the hot air in the low-temperature zone 5, the medium-temperature zone 6, and the high-temperature zone 7 is blown to both sides of the ion exchange membrane. A heating resistor is installed inside the heating chamber 9. It should also be noted that the heating principle of the heating resistor is based on the heating method of electricity, and it can heat metals, molten metals or non-metals.

[0027] Specifically, when the air intake assembly 8 delivers ambient air into the heating chamber 9 and heats it with a heating resistor, the air is then delivered through the first ventilation duct 10, the second ventilation duct 11, and the third ventilation duct 12 into the corresponding high-temperature zone 7, medium-temperature zone 6, and low-temperature zone 5. With the cooperation of the corresponding first venturi tube 13 and second venturi tube 14, the second ventilation duct 11 can receive ambient air through the first venturi tube 13 to cool the high-temperature air within it. Similarly, the third ventilation duct 12 receives ambient air through the second venturi tube 14 to cool the high-temperature air within it. Preferably, since the cross-sectional area of ​​the second ventilation duct 11 is smaller than that of the third ventilation duct 12, the second ventilation duct 11... The high-temperature air velocity in duct 11 is greater than that in the third ventilation duct 12, and the throat diameter of the first venturi tube 13 is smaller than that of the second venturi tube 14. This results in less ambient temperature air being drawn into the second ventilation duct 11 through the first venturi tube 13. Consequently, the temperature of the high-temperature air flowing into the medium-temperature zone 6 from the second ventilation duct 11 is lower than the temperature of the high-temperature air injected into the high-temperature zone 7 from the first ventilation duct 10. Similarly, since the throat diameter of the second venturi tube 14 is larger than that of the first venturi tube 13, more ambient temperature air is drawn into the third ventilation duct 12 through the second venturi tube 14. Thus, the temperature of the high-temperature air injected into the low-temperature zone 5 from the third ventilation duct 12 is lower than the temperature of the high-temperature air flowing into the medium-temperature zone 6 from the second ventilation duct 11. Based on the above process, the first ventilation pipe 10, the second ventilation pipe 11, and the third ventilation pipe 12 can output air at different temperatures, thereby dividing the oven 4 into three temperature zones: low temperature zone 5, medium temperature zone 6, and high temperature zone 7. This allows the ion exchange membrane to achieve gradient drying in the drying process, preventing the ion exchange membrane from developing local internal stress due to uneven shrinkage during the drying process, which could cause microcracks or warping in the membrane layer.

[0028] The air intake assembly 8 includes an air intake main pipe 81 fixedly connected to the heating chamber 9. The air outlet of the air intake main pipe 81 communicates with the interior of the heating chamber 9, and an air pump 82 is provided on the air intake main pipe 81. The air intake end of the air intake main pipe 81 is provided with a first dustproof net 16 via a detachable mechanism. The detachable mechanism includes a plurality of first magnets 17 in a circumferential array fixedly connected to the air intake main pipe 81. A plurality of second magnets 18 magnetically attracted to the first magnets 17 are fixedly connected to the frame of the first dustproof net 16.

[0029] Specifically, when the hot air pump is working, it can inject natural air from the outside environment into the heating chamber 9 through the air inlet pipe 81. The first dustproof net 16 blocks dust and prevents dust from being blown onto the membrane layer of the ion exchange membrane, thus affecting the quality of the ion exchange membrane. The setting of the first magnet 17 and the second magnet 18 makes it convenient for staff to remove the first dustproof net 16, so as to achieve the effect of timely cleaning or replacement of the first dustproof net 16.

[0030] Each air outlet assembly 15 includes multiple upper air nozzles 151 and lower air nozzles 152, and each upper air nozzle 151 and each lower air nozzle 152 are equidistantly distributed along the ion membrane conveying direction, and each lower air nozzle 152 is arranged in a staggered manner corresponding to each upper air nozzle 151.

[0031] Each air vent 151 and each air vent 152 in the high temperature zone 7 is connected to the first ventilation duct 10; each air vent 151 and each air vent 152 in the medium temperature zone 6 is connected to the second ventilation duct 11; each air vent 151 and each air vent 152 in the low temperature zone 5 is connected to the third ventilation duct 12.

[0032] Specifically, each air outlet component 15 can dry both sides of the ion membrane in different temperature zones, and by setting multiple upper air nozzles 151 and lower air nozzles 152, the ion membrane in each temperature zone is repeatedly dried, thereby achieving a better drying effect.

[0033] The oven 4 and the heating chamber 9 are connected by a circulating air duct 19, which is equipped with a circulating pump 20. Specifically, when the circulating pump 20 is working, the circulating air duct 19 can inject the high-temperature air from the oven 4 into the heating chamber 9, and then inject the corresponding high-temperature air into the high-temperature zone 7, the medium-temperature zone 6, and the low-temperature zone 5 through the first ventilation duct 10, the second ventilation duct 11, and the third ventilation duct 12. Since the high-temperature air in the oven 4 has a certain temperature, it can reduce energy consumption when the heating resistor is reheated.

[0034] In this embodiment, the air inlet ends of both the first Venturi tube 13 and the second Venturi tube 14 are fixedly connected to a second dustproof screen. The second dustproof screen can also prevent dust from entering the oven 4. In a preferred embodiment of this solution, the first Venturi tube 13 and the second Venturi tube 14 can also be detachably connected to the corresponding second dustproof screen through a detachable mechanism. Specifically, each first magnet 17 can be fixedly connected to the first Venturi tube 13 and the second Venturi tube 14, while each second magnet 18 can be fixedly connected to the frame of the corresponding second dustproof screen.

[0035] The oven 4 is equipped with a guiding unit, which includes multiple guide rollers 21 that are rotatably connected to the oven 4 at equal intervals along the ion-exchange membrane conveying direction. The outer surface of the guide rollers 21 is oxidized to make it smooth. The guide rollers 21 facilitate ion-exchange membrane conveying, while the smooth surface effectively prevents damage to the ion-exchange membrane surface.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gradient circulation temperature control system for a casting-based ion-exchange membrane production equipment, comprising a machine body, an unwinding mechanism for releasing the ion-exchange membrane on one side of the machine body, and a winding mechanism for winding the ion-exchange membrane on the other side, characterized in that, Also includes: The drying oven is fixedly connected to the machine body and is located between the unwinding mechanism and the rewinding mechanism; The oven has multiple temperature zones, including a low temperature zone, a medium temperature zone, and a high temperature zone, which are arranged sequentially along the ion membrane transport direction. Air intake components are used to deliver ambient air to multiple temperature zones. A gradient temperature control assembly includes a heating chamber fixedly connected to an oven. The heating chamber is connected to a high-temperature zone via a first ventilation pipe, to a medium-temperature zone via a second ventilation pipe, and to a low-temperature zone via a third ventilation pipe. The cross-sectional area of ​​the first ventilation pipe is smaller than that of the second ventilation pipe, and the cross-sectional area of ​​the second ventilation pipe is smaller than that of the third ventilation pipe. The second ventilation pipe is connected to a first venturi tube, and the third ventilation pipe is connected to a second venturi tube. The throat diameter of the first venturi tube is larger than that of the second venturi tube. Multiple air outlet components are installed one-to-one in the low-temperature zone, medium-temperature zone, and high-temperature zone of the oven, so that the hot air in the low-temperature zone, medium-temperature zone, and high-temperature zone blows onto both sides of the ion exchange membrane.

2. The gradient circulation temperature control system for a casting-based ion-exchange membrane production equipment according to claim 1, characterized in that, The air intake assembly includes a main air intake pipe fixedly connected to the heating chamber, the air outlet of the main air intake pipe being connected to the interior of the heating chamber, and an air pump being provided on the main air intake pipe.

3. The gradient circulation temperature control system for a casting-based ion-exchange membrane production equipment according to claim 2, characterized in that, The air inlet end of the main air inlet pipe is provided with a first dustproof net via a removable mechanism. The removable mechanism includes a plurality of first magnets fixedly connected to the main air inlet pipe in a circumferential array. A plurality of second magnets that are magnetically attracted to the first magnets are fixedly connected to the frame of the first dustproof net.

4. The gradient circulation temperature control system for a casting-based ion-exchange membrane production equipment according to claim 3, characterized in that, Each air outlet assembly includes multiple upper and lower air nozzles, and each upper and lower air nozzle is equidistantly distributed along the ion membrane conveying direction. Each lower air nozzle is arranged in a staggered manner corresponding to each upper air nozzle. In the high-temperature zone, each upper and lower air nozzle is connected to the first ventilation duct; in the medium-temperature zone, each upper and lower air nozzle is connected to the second ventilation duct; and in the low-temperature zone, each upper and lower air nozzle is connected to the third ventilation duct.

5. The gradient circulation temperature control system for a casting-based ion-exchange membrane production equipment according to claim 1, characterized in that, The heating chamber is equipped with a heating resistor.

6. The gradient circulation temperature control system for a casting-based ion-exchange membrane production equipment according to claim 1, characterized in that, The oven and the heating chamber are connected by a circulating air duct, and a circulating pump is installed on the circulating air duct.

7. The gradient circulation temperature control system for a casting-based ion-exchange membrane production equipment according to claim 1, characterized in that, Both the first and second Venturi tubes have a second dustproof net fixedly connected to their air inlet ends.

8. The gradient circulation temperature control system for a casting-based ion-exchange membrane production equipment according to claim 1, characterized in that, The winding mechanism includes a winding roller rotatably connected to the machine body, and a first motor is fixedly connected to the machine body, with the output shaft of the first motor being coaxially and fixedly connected to the winding roller; the unwinding mechanism includes an unwinding roller rotatably connected to the machine body, and a second motor is fixedly connected to the machine body, with the output shaft of the second motor being coaxially and fixedly connected to the unwinding roller.

9. The gradient circulation temperature control system for a casting-based ion-exchange membrane production equipment according to claim 1, characterized in that, The oven is equipped with a guiding unit, which includes multiple guide rollers that are rotatably connected to the oven at equal intervals along the ion membrane conveying direction.

10. The gradient circulation temperature control system for a casting-based ion-exchange membrane production equipment according to claim 9, characterized in that, The outer surface of the guide roller is smooth.

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