A curing chamber circulating air supply structure

Abstract

This invention discloses a curing chamber circulating air supply structure, relating to the field of air supply structure technology. It includes a curing chamber and a circulating air supply mechanism. The circulating air supply mechanism includes an upper air chamber with circulation mechanisms connected to both ends. It also includes a central chamber located at the bottom of the curing chamber, with a circulation pipe connecting the central chamber and the upper air chamber. The central chamber contains an electric heating rod. A steam engine is connected to the central chamber, and multiple air ducts connect the central chamber and the upper air chamber. Air outlets are located on the outside of the air ducts. Gas enters the circulation pipe from the upper air chamber, is heated by the electric heating rod, and flows into the central chamber where it mixes with water vapor generated by the steam engine to form a hot, humid gas with a certain humidity. This hot, humid gas enters the air ducts and flows out through the air outlets into the curing chamber to cure the object. The hot gas can carry water vapor to each air outlet, making the heat and humidity of the gas entering the curing chamber more uniform, which is beneficial for improving the curing effect on the object.

Description

Technical Field

[0001] This invention relates to the field of air supply structure technology, specifically to a circulating air supply structure for a curing chamber. Background Technology

[0002] A curing chamber, also known as a maturation chamber, is a facility used for the thermal curing of composite films. It involves placing the pre-laminated film into the drying chamber, allowing the main component of the polyurethane adhesive and the curing agent to react and cross-link, interacting with the surface of the composite substrate. The main purpose of curing is to ensure that the main component and curing agent react fully within a certain time to achieve the desired composite strength; secondly, it removes residual low-boiling-point solvents, such as ethyl acetate.

[0003] Currently, a common hot air curing chamber uses a bottom-intake and top-return air curing method. Because the hot air used for curing tends to move towards the top of the chamber, the temperature near the top is high, while the temperature near the bottom is low, resulting in severely uneven temperature distribution. This significant temperature difference leads to better curing of the composite film roll near the top of the chamber and poorer curing near the bottom, seriously affecting the quality of the composite film.

[0004] Meanwhile, in order to ensure that there is a certain humidity inside the curing chamber, a humidifier is usually installed in the curing chamber. The humidifier is located at the top of the curing chamber. When water vapor is sprayed out from the curing chamber, the water vapor is concentrated near the humidifier. The distribution of moisture is uneven, just like the distribution of temperature. Summary of the Invention

[0005] The purpose of this invention is to provide a curing chamber circulating air supply structure to solve the following technical problems:

[0006] How to make the curing temperature and humidity distribution inside the curing chamber more uniform.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A curing chamber circulating air supply structure includes a curing chamber and a circulating air supply mechanism. The circulating air supply mechanism includes an upper air chamber, a fan mounted on the top of the upper air chamber, and symmetrically arranged circulation mechanisms connected to both ends of the upper air chamber. The circulation mechanism includes:

[0009] A centralized chamber is installed at one end of the bottom of the curing chamber and is equipped with a temperature detector inside.

[0010] The circulation pipe is located outside the curing chamber, with one end connected to the upper air chamber and the other end connected to the central chamber, and is equipped with a one-way valve inside.

[0011] An electric heating rod is installed in a circulation pipe. The electric heating rod is electrically connected to a controller, and the controller is electrically connected to a temperature detector.

[0012] Steam engine, with its outlet connected to a central chamber;

[0013] Several parallel air ducts are arranged, with one end of each duct connected to the upper air chamber and the other end connected to the central chamber. A one-way valve is installed inside the air duct, and multiple air outlet mechanisms are provided on the side of the air duct away from the inner wall of the curing chamber.

[0014] In a further embodiment of the present invention: the permissible flow direction of one-way valve one is from the central chamber to the upper air chamber; the permissible flow direction of one-way valve two is from the upper air chamber to the central chamber.

[0015] In a further embodiment of the present invention: the air outlet mechanism includes an air outlet cover, which is inserted through the air duct, and a plurality of air outlet holes are opened at the outer end of the air outlet cover.

[0016] In a further embodiment of the present invention: a wind resistance block is provided at the center of one end of the air outlet cover inside the air duct, and an elastic mechanism is provided between the wind resistance block and the air outlet cover, with the elastic force direction located on the line connecting the center point of the wind resistance block and the sleeve; the air outlet cover is provided with a plurality of sealing blocks corresponding one-to-one with a plurality of air outlet holes, and each sealing block is connected to the wind resistance block through a connecting rod.

[0017] In a further embodiment of the present invention: the distance between each sealing block and its corresponding vent is different, and the length of the vent is greater than the distance between the two sealing blocks with the largest horizontal distance.

[0018] In a further embodiment of the present invention, the sealing block is made of lightweight plastic.

[0019] In a further embodiment of the present invention: the elastic mechanism includes a sleeve, one end of which is connected to the center of the inner wall of the outer end of the air vent cover, and the other end is movably provided with a sliding rod. The end of the sliding rod away from the sleeve is fixedly connected to the wind resistance block, and a spring is sleeved on the sliding rod.

[0020] The beneficial effects of this invention are:

[0021] (1) The gas enters the circulation pipe from the upper air chamber. When it passes through the electric heating rod, the electric heating rod heats the gas, raising the gas temperature to hot gas. The hot gas continues to flow into the concentration chamber. At the same time, the steam engine generates water vapor. After the water vapor enters the concentration chamber, it mixes with the hot gas to form a hot and humid gas with a certain humidity. After the hot and humid gas enters the air duct, it flows out through the air outlet mechanism to the curing chamber to cure the object. The formation and output of the hot and humid gas helps to carry the water vapor to each air outlet mechanism, making the heat and humidity of the gas entering the curing chamber more uniform, which is beneficial to improving the curing effect on the object.

[0022] (2) Since water vapor has a high temperature, when the temperature of the hot gas in the circulation pipe is lower than that of the water vapor, when the water vapor and the hot gas are gathered and mixed in the concentration chamber, the water vapor can further increase the temperature of the hot gas, so that the temperature of the humid gas formed by the two is higher than that of the original hot gas. The temperature of the gas that finally enters the curing chamber, i.e. the curing temperature, is the temperature of the humid gas. Therefore, when the curing temperature requirement is a certain value, such as X, the heating rod can heat the gas in the circulation pipe to a temperature value lower than X, which can save the output energy of the heating rod and help save energy.

[0023] (3) When the gas is discharged from the duct through the gas outlet mechanism, it first passes through the wind resistance block and forms a thrust on the wind resistance block. The wind resistance block then causes the elastic mechanism to undergo elastic deformation. At the same time, it drives the sealing block to move towards the corresponding gas outlet through the connecting rod. The greater the air pressure, the greater the thrust on the wind resistance block, the greater the thrust on the elastic mechanism, and the greater the movement distance of the wind resistance block. The greater the distance the sealing block moves towards the gas outlet through the connecting rod, the more sealing blocks enter the gas outlet. These sealing blocks will block the gas outlet, causing the gas to flow out only from the remaining gas outlets. This allows for automatic adjustment of the gas pressure of the gas exiting the gas outlet mechanism, making the gas pressure of the gas exiting from each gas outlet mechanism similar, thereby ensuring the overall gas pressure of the gas entering the curing chamber is stable, which is beneficial for achieving uniform temperature inside the curing chamber. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the air outlet mechanism in one embodiment of the present invention;

[0027] Figure 3 This is a partial exploded view of the air outlet mechanism in one embodiment of the present invention.

[0028] The labels in the diagram represent: 100, Curing Chamber; 200, Circulating Air Supply Mechanism; 201, Upper Air Chamber; 202, Fan; 203, Circulation Pipe; 204, Centralized Chamber; 205, Steam Engine; 206, Air Duct; 207, Heating Rod; 208, One-Way Valve I; 209, One-Way Valve II; 300, Air Exhaust Mechanism; 301, Air Exhaust Cover; 302, Air Exhaust Hole; 303, Sleeve; 304, Slide Rod; 305, Spring; 306, Air Resistance Block; 307, Connecting Rod; 308, Sealing Block; 400, Temperature Detector; 500, Controller. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1 As shown, the present invention is a curing chamber circulating air supply structure, including a curing chamber 100, in which a circulating air supply mechanism 200 is provided. The circulating air supply mechanism 200 includes an upper air chamber 201, and a fan 202 is provided on the top of the upper air chamber 201. The size of the fan 202 is the same as the size of the top of the upper air chamber 201, and it is used to draw outside air into the upper air chamber 201. Two sets of circulating mechanisms are respectively connected to the left and right ends of the upper air chamber 201.

[0031] The circulation mechanism located on the left includes a central chamber 204, which is installed at the bottom left of the curing chamber 100. The central chamber 204 is a square strip with a length that is the same as the width of the bottom of the upper air chamber 201. A circulation pipe 203 located outside the curing chamber 100 connects the central chamber 204 and the upper air chamber 201. One end of the circulation pipe 203 is connected to the upper air chamber 201, and the other end is connected to the central chamber 204. An electric heating rod 207 is installed in the circulation pipe 203 to heat the gas entering the circulation pipe 203. A one-way valve 209 is also installed in the circulation pipe 203. The one-way valve 209 allows the gas to flow from the upper air chamber 201 to the central chamber 204, so as to ensure that the gas can only flow from top to bottom.

[0032] A steam engine 205 is installed outside the central chamber 204. The steam outlet of the steam engine 205 is connected to the central chamber 204 to input hot steam into the central chamber 204. Several parallel air ducts 206 are connected between the upper side of the central chamber 204 and the lower left side of the upper air chamber 201. One end of each air duct 206 is connected to the upper air chamber 201, and the other end is connected to the central chamber 204. A one-way valve 208 is installed inside the air duct 206. The one-way valve 208 allows passage through the central chamber. The air duct 204 extends to the upper air chamber 201, ensuring that the gas can only flow from bottom to top. Multiple air outlet mechanisms 300 are provided on the side of the air duct 206 away from the inner wall of the curing chamber 100 to discharge the gas in the air duct 206 into the curing chamber 100. A temperature detector 400 is installed in the concentration chamber 204 to detect the gas temperature in the concentration chamber 204. A controller 500 is provided on the top of the curing chamber 100, and the controller 500 is electrically connected to the temperature detector 400 and the heating rod 207.

[0033] The circulation mechanism on the right end has the same structure as the circulation mechanism on the left end, the only difference being the installation position, and the circulation mechanisms on the left and right ends are symmetrically arranged.

[0034] Specifically, during use, the object to be cured is placed in the curing chamber 100, and then the door of the curing chamber 100 is closed to seal the interior of the curing chamber 100 before curing. The fan 202 draws outside air into the upper air chamber 201. The fan 202 is equipped with a purification system that can purify the air passing through it, removing impurities and dust, so that the gas entering the upper air chamber 201 is clean gas.

[0035] Clean gas enters the left and right circulation mechanisms from the upper air chamber 201. The gas movement is the same in the left and right circulation systems. The following description uses the left circulation system as an example to illustrate the gas movement in the circulation mechanism:

[0036] Gas enters the circulation pipe 203 from the upper air chamber 201. When it passes through the electric heating rod 207, the electric heating rod 207 heats the gas, raising its temperature to hot gas. The hot gas continues to flow into the concentration chamber 204. At the same time, the steam generator 205 generates water vapor. After entering the concentration chamber 204, the water vapor mixes with the hot gas to form a hot and humid gas with a certain humidity. After entering the air duct 206, the hot and humid gas flows out through the air outlet mechanism 300 into the curing chamber 100 to cure the object. The formation and output of the hot and humid gas helps to carry the water vapor to each air outlet mechanism 300, making the heat and humidity of the gas entering the curing chamber 100 more uniform, which is beneficial to improving the curing effect on the object.

[0037] Meanwhile, since water vapor has a high temperature, when the hot gas in the circulation pipe 203 is lower than the temperature of the water vapor, when the water vapor and hot gas gather and mix in the concentration chamber 204, the water vapor can further increase the temperature of the hot gas, so that the temperature of the humid gas formed by the two is higher than the original hot gas temperature. The temperature of the gas that finally enters the curing chamber 100, i.e. the curing temperature, is the temperature of the humid gas. Therefore, when the required curing temperature is a certain value, such as X, the heating rod 207 can heat the gas in the circulation pipe 203 to a temperature value lower than X, which can save the output energy of the heating rod 207 and is conducive to energy conservation.

[0038] The exhaust mechanism 300 can detect the temperature of the mixed hot and humid gas in the central chamber 204 and transmit the detection information to the controller 500. After receiving the temperature information, the controller 500 automatically adjusts the temperature of the heating rod 207 according to the temperature information. For example, when the hot and humid gas in the central chamber 204 is higher than the required value, the controller 500 commands the heating rod 207 to reduce the temperature, thereby reducing the temperature of the hot gas entering the central chamber 204, thus regulating the overall temperature of the hot and humid gas and ensuring that the hot and humid gas is always at a relatively stable required temperature.

[0039] To elaborate further, please refer to Figure 2 The air outlet mechanism 300 includes an air outlet cover 301, which is inserted through the air duct 206. The outer end of the air outlet cover 301 has a plurality of evenly distributed air outlet holes 302. For example, in this embodiment of the invention, there are six air outlet holes 302, which are circumferentially distributed about the center of the outer end of the air outlet cover 301.

[0040] The gas is discharged through multiple vents 302, which can make the gas more evenly dispersed and avoid the gas being too concentrated, resulting in poor gas dispersion.

[0041] To elaborate further, please refer to Figure 3 The air outlet cover 301 has a wind resistance block 306 at the center of one end inside the air duct 206. The wind resistance block 306 is circular, and its radius is smaller than the shortest distance from the center of the outer end of the air outlet cover 301 to the edge of any air outlet 302, so as to avoid adverse effects on the air outlet. A spring mechanism is provided between the wind resistance block 306 and the air outlet cover 301, and the spring direction is located on the line connecting the center point of the wind resistance block 306 and the sleeve 303. The air outlet cover 301 has a plurality of sealing blocks 308 corresponding one-to-one with a plurality of air outlets 302. Each sealing block 308 is connected to the wind resistance block 306 through a connecting rod 307. The distance between each sealing block 308 and the corresponding air outlet 302 is different, and the length of the air outlet 302 is greater than the distance between the two largest sealing blocks 308 in the horizontal direction.

[0042] When gas exits from duct 206 through exhaust mechanism 300, it first passes through drag block 306, generating a thrust on drag block 306. This thrust acts on the elastic mechanism, causing it to deform elastically. Simultaneously, it drives sealing block 308 towards the corresponding exhaust port 302 via connecting rod 307. Higher air pressure results in a greater thrust on drag block 306, which in turn generates a greater thrust on the elastic mechanism. This greater thrust leads to a longer movement distance of drag block 306, which in turn drives the connecting rod 307. The greater the distance that the sealing block 308 moves towards the air outlet 302, the more sealing blocks 308 enter the air outlet 302. These sealing blocks 308 will block the air outlet 302, causing the gas to flow out only from the remaining air outlets 302. This allows for automatic adjustment of the gas pressure exiting from the air outlet mechanism 300, making the gas pressure exiting from each air outlet mechanism 300 similar. This ensures that the overall gas pressure entering the curing chamber 100 is stable, which is beneficial for achieving uniform temperature inside the curing chamber 100.

[0043] Furthermore, the sealing block 308 is made of lightweight plastic, which ensures that the wind resistance block 306 is subjected to more even force.

[0044] Furthermore, the elastic mechanism includes a sleeve 303, one end of which is connected to the center of the inner wall of the outer end of the vent cover 301, and the other end is movably fitted with a slide rod 304. The end of the slide rod 304 away from the sleeve 303 is fixedly connected to the wind resistance block 306, and a spring 305 is fitted on the slide rod 304.

[0045] In detail, when the wind resistance block 306 is subjected to the thrust of the gas, it will drive the slide rod 304 to move into the sleeve 303, thereby compressing the spring 305. The greater the thrust, the greater the distance that the wind resistance block 306 drives the slide rod 304 to slide into the sleeve 303, the greater the compression of the spring 305, and the greater the elastic deformation, thereby achieving automatic adjustment.

[0046] Working principle of the invention:

[0047] Gas enters the circulation pipe 203 from the upper air chamber 201. As it passes the heating rod 207, the heating rod heats the gas, raising its temperature to hot gas. The hot gas continues to flow into the concentration chamber 204. Simultaneously, the steam generator 205 produces water vapor. This water vapor enters the concentration chamber 204 and mixes with the hot gas to form a humidified gas. This humidified gas then enters the air duct 206 and flows out through the exhaust mechanism 300 into the curing chamber 100 to cure the object. The formation and output of the humidified gas facilitates the carrying of water vapor to each exhaust mechanism 300, resulting in a more uniform temperature and humidity of the gas entering the curing chamber 100, which is beneficial for improving... Regarding the curing effect of objects; at the same time, since water vapor has a high temperature, when the hot gas in the circulation pipe 203 is lower than the temperature of the water vapor, when the water vapor and the hot gas gather and mix in the concentration chamber 204, the water vapor can further increase the temperature of the hot gas, so that the temperature of the humid gas formed by the two is higher than the original hot gas temperature, and the temperature of the gas that finally enters the curing chamber 100, that is, the curing temperature, is the temperature of the humid gas. Therefore, when the required curing temperature is a certain value, such as X, the heating rod 207 can heat the gas in the circulation pipe 203 to a temperature value lower than X, which can save the output energy of the heating rod 207 and is conducive to energy conservation.

[0048] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A curing chamber circulating air supply structure comprising a curing chamber (100), characterized by, Also include circulating air mechanism (200), the circulating air mechanism (200) includes the upper wind chamber (201), the upper wind chamber (201) top is equipped with fan (202), the both ends of the upper wind chamber (201) are connected with the circulating mechanism of symmetrical arrangement respectively, the circulating mechanism includes: Concentrated chamber (204), concentrated chamber (204) is installed at the bottom of the curing chamber (100) one end, the inside of concentrated chamber is equipped with temperature detector (400); Circulating pipe (203), circulating pipe (203) is equipped with the outside of the curing chamber (100), and one end is communicated with the upper wind chamber (201), the other end is communicated with the concentrated chamber (204), and the inside is equipped with check valve two (209); Electric heating rod (207), is equipped in circulating pipe (203), electric heating rod (207) electrically connected with controller (500), controller (500) and temperature detector (400) electrically connected; Steam engine (205), the gas outlet end of steam engine (205) is connected with concentrated chamber (204); A plurality of parallelly arranged air pipes (206), one end of each air pipe (206) is communicated with the upper wind chamber (201), the other end is communicated with the concentrated chamber (204), the inside of air pipe (206) is equipped with check valve one (208), the side of air pipe (206) away from the inner wall of the curing chamber (100) is equipped with a plurality of air outlet mechanisms (300); The air outlet mechanism (300) includes air outlet cover (301), air outlet cover (301) is arranged in air pipe (206), a plurality of air outlet holes (302) are formed in the outer end of air outlet cover (301); The center of the one end of air outlet cover (301) inside air pipe (206) is equipped with wind resistance block (306), the elastic mechanism is arranged between wind resistance block (306) and air outlet cover (301), the elastic direction is located on the line between the center point of wind resistance block (306) and sleeve (303); A plurality of sealing blocks (308) corresponding to a plurality of air outlet holes (302) are arranged in the inside of air outlet cover (301), each sealing block (308) is connected with wind resistance block (306) through connecting rod (307); The spacing between each sealing block (308) and the corresponding air outlet hole (302) is not the same, and the length of the air outlet hole (302) is greater than the spacing between the two sealing blocks (308) with the maximum spacing in the horizontal direction.

2. The curing chamber circulating air supply structure of claim 1, wherein, The allowed passing direction of check valve one (208) is from the concentrated chamber (204) to the upper wind chamber (201); The allowed passing direction of check valve two (209) is from the upper wind chamber (201) to the concentrated chamber (204).

3. The curing chamber circulating air supply structure of claim 1, wherein, The material of sealing block (308) is light plastic.

4. The curing chamber circulating air supply structure of claim 1, wherein, The elastic mechanism includes sleeve (303), one end of sleeve (303) is connected to the inner wall center of the outer end of air outlet cover (301), the other end is movably arranged with slide rod (304), one end of slide rod (304) away from sleeve (303) is fixedly connected with wind resistance block (306), spring (305) is sleeved on slide rod (304).

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