Constant-temperature oven capable of controlling air speed and humidity, and implementation method

Abstract

Disclosed in the present invention are a constant-temperature oven capable of controlling air speed and humidity, and an implementation method. The apparatus comprises: a drying unit, a first temperature control unit, a first air circulating supply unit, a temperature control unit, an air speed control unit, a main control unit, a second air circulating supply unit, a humidification unit and a second temperature control unit. The apparatus can realize the control over the temperature and humidity inside an oven and the automatic adjustment of air speed, can be used for automatic constant-temperature drying of a roll-type membrane material and a sheet-type membrane material, and can also be used for a verification test under specific temperature and humidity conditions. The problems of the difficulty in manual intervention for the humidity of an oven being great, large hot air loss of the oven and difficulty in hot air circulation of the oven are avoided; moreover, the apparatus can realize full-automatic and high-precision constant-temperature drying of a roll-type membrane material and a sheet-type membrane material on the basis of a preset temperature and humidity.

Description

Constant temperature, air speed control and humidity oven and implementation method TECHNICAL FIELD

[0001] The technical scheme mainly relates to the technical fields of "industrial oven technology", "environmental temperature and humidity control technology", "automation control technology" and the like, and particularly relates to a constant temperature, air speed control and humidity oven and implementation method. BACKGROUND

[0002] In the production of in-vitro diagnostic test strips, the drying of the membrane material is a critical step that directly affects the quality and performance of the product. Traditional ovens usually only have basic heating functions and lack precise control of the internal environment of the oven, resulting in unstable drying effects, high energy consumption, and ineffective moisture removal, which affects the uniformity and quality of the membrane material drying. These ovens often use simple hot air circulation systems without temperature and humidity detection and automatic adjustment functions, requiring operators to monitor and adjust the working state of the oven in real time, increasing labor intensity and operation difficulty.

[0003] Some ovens have temperature and humidity detection functions, but lack effective moisture removal mechanisms, making it difficult to remove moisture from the oven interior under high humidity conditions, affecting drying efficiency and product quality. Some ovens have a moisture removal system, but cannot automatically adjust the moisture removal amount according to actual humidity changes, resulting in inaccurate moisture removal, energy waste, and potential environmental pollution.

[0004] In addition, most existing ovens are designed for fixed placement of specific materials for drying, making it difficult to apply to efficient drying of specific materials in motion. In addition, temperature control of materials in motion requires addressing heat loss and heat replenishment to maintain a constant temperature in the oven,

[0005] To address the above problems, the existing oven technical solutions have the following shortcomings:

[0006] 1. For drying of materials in motion, the internal environment of the oven is not accurately controlled, and automatic temperature and humidity adjustment cannot be achieved, resulting in unstable drying effects.

[0007] 2. Existing ovens are mainly used for closed drying of stationary materials, making it difficult to apply to stable drying of materials in motion.

[0008] 3. The operation is complex, requiring manual monitoring and adjustment of the working state of the oven, increasing labor intensity and operation difficulty.

[0009] 4. High energy consumption, lack of energy-saving measures, leading to increased production costs.

[0010] 5. The existing equipment has a single function, limiting the expandability of the equipment functions.

[0011] 6. Existing drying ovens cannot guarantee the uniformity of drying film materials, and the unidirectional circulation of hot air often results in the near-air end being dried first. Summary of the Invention

[0012] Based on this, this technical solution mainly solves the following problems: 1) For drying open materials, the internal environment control of the drying oven is not precise, and the automatic adjustment of temperature and humidity cannot be achieved, resulting in unstable drying effect; 2) For drying materials in motion, it is necessary to solve the technical problems of heat loss and maintaining efficient drying within a specific temperature range; 3) The operation is complicated, requiring manual monitoring and adjustment of the working status of the drying oven, which increases labor intensity and operational difficulty; 4) The energy consumption is high, and the lack of energy-saving measures leads to increased production costs; 5) The film (roll) type film is etched and sprayed with gold, and the material environment is tested under specific temperature and humidity conditions.

[0013] The purpose of this invention is to overcome the shortcomings of the prior art and provide a constant temperature, airflow, and humidity control oven. This oven features precise internal environment control, automatic temperature and humidity adjustment, automatic moisture removal, and energy saving.

[0014] To solve the above-mentioned technical problems, the objective of this invention is achieved as follows: A constant temperature, wind speed, and humidity controlled drying oven, comprising:

[0015] A drying unit, which includes a material handling component, can be used for drying rolled or sheet materials;

[0016] The first temperature control unit includes a temperature sensing component and a heating component, wherein the heating component can adjust the temperature of fresh air and circulating air according to the temperature value.

[0017] The first air circulation supply unit includes a first air circulation component and a fresh air control component. The fresh air control component is surrounded by a heating component. The first air circulation component is located after the heating component and before the drying unit.

[0018] A humidity control unit, comprising a humidity sensing component and an exhaust component, wherein the exhaust component is located on the upper part of the drying unit and can adjust the air volume according to the feedback value of the humidity sensing component in the drying unit;

[0019] A wind speed control unit, comprising a wind speed sensing component, which can display a wind speed value and is used to adjust the circulating wind speed;

[0020] The main control unit is connected to the drying unit, the first temperature control unit, the first air circulation supply unit, the humidity control unit, and the wind speed control unit, respectively, and is used to control the drying unit, the first temperature control unit, the first air circulation supply unit, the humidity control unit, and the wind speed control unit.

[0021] The second air circulation supply unit includes a second air circulation component, which is arranged in parallel with the first air circulation component and can alternately supply air circulation in the forward and reverse directions.

[0022] The humidification unit can be one or more of ultrasonic humidifiers, evaporative humidifiers, and electric heating humidifiers. The humidification unit can set the test environment humidity according to the standard of the material to be tested.

[0023] The second temperature control unit includes an electric heating element, which is arranged parallel to the running direction of the material to be dried and at a distance of 5-10 mm from the material to be dried, and can provide stable radiant heat to the material to be dried.

[0024] Furthermore, the fresh air control component is one or both of a fan or a valve, which can control the air volume;

[0025] Furthermore, the heating element can be a PTC electric heater, with at least one unit provided. The main control unit controls the temperature value and energizing frequency of the PTC heater to achieve heating and temperature control of the airflow passing through the heating element.

[0026] Furthermore, the circulating air component is a centrifugal fan or a ducted fan, which can stably deliver the heated air into the drying unit.

[0027] Furthermore, the exhaust component includes an electric control element or a manual control element, which can control the exhaust volume of the drying unit. The electric control element is located at the top of the drying oven and can automatically adjust the opening size or exhaust volume of the exhaust component based on the output data of the humidity sensor to control the exhaust volume. The manual control element is located at the top of the drying oven and can manually control the air volume. Then, based on the output data of the humidity sensor, it can automatically adjust the fresh air intake and the circulating air volume of the circulating air component to control the humidity value.

[0028] Furthermore, the material handling component is located within the drying unit and can store and transport rolled or non-rolled materials. There is a partition with multiple rows of air holes between the drying unit and the first and second air circulation supply units. The air circulation supply units and the second air circulation supply units work alternately on a regular basis, which can realize the periodic reversible exchange of the direction of the heated airflow in the drying unit, and finally form a transverse bidirectional constant temperature and speed controlled airflow in the drying unit.

[0029] Another aspect of the present invention provides a method for controlling temperature, airflow, and humidity, the method comprising the following steps:

[0030] a: After the equipment is started, the first temperature control unit, the first air circulation supply unit, the humidity control unit, and the main control unit start working. The first temperature control unit continuously heats the circulating air, and the first air circulation supply unit continuously supplies hot air to the drying unit.

[0031] b: The temperature control unit can monitor the temperature value inside the drying unit in real time and adjust the heat output of the heating element according to the temperature feedback value to avoid the temperature inside the drying unit being too high or too low;

[0032] c: When the temperature reaches the preset value, the drying unit can achieve efficient drying of moving or stationary materials;

[0033] d: As the drying time increases, the humidity control unit will feed back the real-time humidity data to the main control unit. Once the humidity value exceeds the set threshold, an alarm will be triggered, causing the material handling components in the drying unit to stop operating and controlling the exhaust components to work. Under the operation of the air circulation supply unit, the moisture in the drying unit will be quickly discharged.

[0034] e: The wind speed control unit can provide real-time feedback on the wind speed value within the drying unit. Based on the humidity of the material to be dried, the main control unit can adjust the first temperature control unit, the first air circulation supply unit, and the second temperature control unit to increase or decrease the circulating air speed.

[0035] In some implementation methods, the second air circulation supply unit, under the control of the main control unit, will stop the first circulation air component and start the second circulation air component, depending on the number of material layers. At this time, it can continuously provide stable hot air in the opposite direction to the drying unit, eliminating problems such as uneven drying caused by the original drying unit.

[0036] In some implementation methods, the humidification unit can continuously provide atomized moisture to the drying unit. In this case, the drying unit is not used for material drying, but can be used in conjunction with the temperature control unit to maintain a specific humidity and temperature environment, thereby meeting the performance testing requirements of the material under specific temperature and humidity conditions.

[0037] The beneficial effects of this invention are as follows: 1. Improved drying efficiency: The constant temperature, wind speed, and humidity controlled oven of this invention, through the first and second air circulation supply units, can quickly and evenly heat the film material, improving drying efficiency. 2. Precise temperature and humidity control: Through built-in temperature and humidity sensors, this invention can monitor the temperature and humidity inside the oven in real time and automatically adjust the heating components, fresh air control components, circulating air components, and exhaust components according to the monitoring results, ensuring a stable internal environment and improving drying quality. 3. Energy saving and consumption reduction: The oven of this invention adjusts the ratio of circulating air volume to fresh air volume through the circulating air component, reducing energy consumption. Simultaneously, the radiant heat provided by the PI film further reduces energy consumption. 4. Automated operation: The oven of this invention has automated hot air circulation and moisture warning and discharge functions, reducing manual operation and improving production efficiency and safety. 5. Strong adaptability: The oven design of this invention can adapt to the drying needs of materials in motion, avoiding problems such as large temperature fluctuations and poor drying effects, exhibiting strong adaptability and flexibility. 6. Improved Product Quality: By precisely controlling the temperature and humidity during the drying process, this invention effectively avoids damage to the membrane material caused by excessively high temperatures or unsuitable humidity, thus improving product quality. 7. Increased Drying Efficiency: Based on feedback values ​​from humidity and wind speed sensors, the ventilation volume is adjusted to enhance the drying effect. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0039] Figure 1 is a schematic diagram of the structure of a constant temperature, wind speed and humidity control drying oven according to the present invention;

[0040] Figure 2 is a left view of a constant temperature, wind speed and humidity control oven according to the present invention;

[0041] Figure 3 is a frame diagram of a constant temperature, wind speed and humidity control oven according to the present invention;

[0042] Figure 4 is a frame diagram of the constant temperature, wind speed and humidity control oven according to an embodiment of the present invention;

[0043] Figure 5 is a flowchart of a constant temperature, wind speed and humidity controlled drying oven according to an embodiment of the present invention;

[0044] Figure 6 is a flowchart of the constant temperature, wind speed and humidity control method according to an embodiment of the present invention. Detailed Implementation

[0045] 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 a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0046] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0047] Furthermore, the term "and / or" in the text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that simultaneously satisfies both A and B. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0048] Example 1

[0049] As shown in Figures 1-3, this application provides a technical solution: a constant temperature, wind speed and humidity control oven, including a drying unit 80, a first temperature control unit, a first air circulation supply unit, a humidity control unit, a wind speed control unit, and a main control unit;

[0050] In this embodiment, the first temperature control unit includes a temperature sensing component 90 and a heating component 20. The heating component 20 can adjust the temperature of fresh air and circulating air according to the temperature value.

[0051] Specifically, the air intake of the fresh air control component 10 first passes through the heating component 20, and the amount of fresh air entering can be adjusted according to needs; the fresh air control component 10 is one or both of a fan or a valve, which can realize the control of air volume;

[0052] Specifically, the heating element 20 is located around the fresh air control element 10 and has a flat plate structure, which can maintain the temperature of the circulating air entering the drying unit 80 within the target range. The heating element can be a PTC electric heater, and at least one is installed. The main control unit controls the temperature value and the frequency of power-on to achieve heating and temperature control of the airflow passing through the heating element.

[0053] In this embodiment, the first air circulation supply unit includes a first circulating air component 30 and a fresh air control component 10. The fresh air control component 10 is surrounded by the heating component 20, and the first circulating air component 30 is located in front of the drying unit 80 after the heating component.

[0054] Specifically, the first circulating air component 30 and the second circulating air component 31 are centrifugal fans or ducted fans, which can guide the mixed heated air and fresh air into the drying unit 80 in the forward and reverse directions according to the feedback value of the wind speed sensor component 50.

[0055] In this embodiment, the humidity control unit includes a humidity sensing component 60 and an exhaust component 70. The exhaust component 70 is placed on the upper part of the drying unit 80 and can adjust the air volume according to the feedback value of the humidity sensing component 60 in the drying unit 80.

[0056] Specifically, the humidity control unit can feed back the detection value of the humidity sensor 60 to the main control unit, and control the exhaust component 70 and other linkage components to adjust the humidity inside the oven.

[0057] Specifically, the exhaust component 70 includes an electric control element or a manual control element, which can control the exhaust volume of the drying unit 80. The electric control element is located at the top of the oven and can automatically adjust the opening size or exhaust volume of the exhaust component 70 according to the output data of the humidity sensor to achieve exhaust volume control. The manual control element is located at the top of the oven and can realize manual control of the exhaust volume. Then, according to the output data of the humidity sensor, it can automatically adjust the fresh air intake and the circulating air volume of the circulating fan to achieve humidity control.

[0058] In this embodiment, the material handling component 85 is located inside the drying unit 80 and can handle rolled or non-rolled materials. There is a partition with multiple rows of air holes between the drying unit and the first air circulation supply unit and the second air circulation supply unit. The air circulation supply unit and the second air circulation supply unit work alternately on a regular basis, which can realize the periodic reversible exchange of the direction of the heated airflow in the drying unit, and finally form a transverse bidirectional constant temperature and speed controlled airflow in the drying unit.

[0059] The technical effects of this embodiment are as follows:

[0060] This constant temperature, wind speed, and humidity control oven facilitates real-time adjustment of the temperature sensor and heating components by the first temperature control unit, continuous supply of constant hot air to the drying unit by the first air circulation unit, real-time monitoring and adjustment of humidity inside the oven by the humidity control unit, and adjustment of air intake speed by the wind speed control unit according to temperature and humidity requirements and wind speed value. This achieves multi-functional integration of the equipment, improving production efficiency and automation level.

[0061] Example 2

[0062] This embodiment is a modified embodiment of embodiment 1.

[0063] As shown in Figure 4, the constant temperature, wind speed and humidity control oven also includes a second air circulation supply unit. The second air circulation supply unit includes a second circulating air component 31. The second circulating air component 31 is arranged in parallel with the first circulating air component 30 and can alternately supply circulating air in the forward and reverse directions with the first circulating air component 30.

[0064] When the second air circulation supply unit is working, the first air circulation supply unit stops working, that is, the first circulation air component 30 stops working and the second circulation air component 31 starts working; the original first air circulation duct stops supplying hot air and instead becomes a duct for circulating hot air. At this time, the direction of the hot air in the drying unit 80 changes from left to right to right to left.

[0065] The first circulating air component 30 and the second circulating air component 31 work alternately, with only one component allowed to work at a time. Through the bidirectional circulating air supply mode, uneven heating and drying caused by hot air at the far end of the oven can be avoided, thus achieving uniform drying of materials in the oven.

[0066] The technical effects of this embodiment are as follows:

[0067] By utilizing this constant temperature, wind speed, and humidity control oven, a second air circulation supply unit is introduced, which has the function of real-time adjustment of the hot air direction inside the oven. Through the symmetrically arranged first circulating air component 30 and second circulating air component 31, hot air can be sent into the drying unit 80 in both forward and reverse directions, realizing uniform drying air supply for complex materials and avoiding the problem of uneven heating and drying.

[0068] Example 3

[0069] This embodiment is a modified embodiment of Embodiments 1 and 2.

[0070] As shown in Figure 5, the constant temperature, wind speed and humidity control oven also includes a humidification unit 32. The humidification unit 32 can be one or more of an ultrasonic humidifier, an evaporative humidifier, and an electric heating humidifier. The humidification unit can set the test environment humidity according to the standard of the material to be tested.

[0071] By adding a humidification unit 32, the application scenarios of the oven can be expanded, and the oven originally used for drying film materials can be upgraded into a multi-functional experimental chamber, enabling the oven to maintain a specific temperature and humidity, and meet the testing requirements of materials under specific temperature and humidity conditions.

[0072] The technical effects of this embodiment are as follows:

[0073] This constant temperature, wind speed and humidity control oven incorporates a humidification unit to regulate the humidity inside the oven. Based on the humidifier and humidity sensor, the humidity inside the oven is maintained within a specific range. In addition, the oven has a temperature control function, which can adjust the specific temperature and humidity inside the oven, transforming the oven into a test chamber under specific temperature and humidity conditions for various test experiments.

[0074] Example 4

[0075] This embodiment is a modified embodiment of Embodiments 1 to 3.

[0076] As shown in Figure 1, the constant temperature, wind speed and humidity control oven also includes a second temperature control unit. The second temperature control unit includes an electric heating element 83. The electric heating element 83 is arranged parallel to the running direction of the material to be dried and is 5-10mm away from the material to be dried, which can provide stable radiant heat to the material to be dried.

[0077] The technical effects of this embodiment are as follows:

[0078] By incorporating a second temperature control unit into this constant temperature, wind speed, and humidity control oven, which provides supplementary temperature regulation, it can assist in adjusting the oven temperature and accelerating drying efficiency, thereby increasing the oven's drying efficiency and improving the drying effect.

[0079] Example 5

[0080] This embodiment is a modified embodiment of Embodiments 1 to 4.

[0081] As shown in Figure 5, the constant temperature, wind speed, and humidity control oven also includes a microwave-assisted drying unit 86. The microwave-assisted drying unit 86 is located inside the drying unit and includes a microwave magnetron component, a waveguide component, and a microwave field distribution component. It can achieve efficient drying of roll-to-roll film materials while preventing microwave leakage. Among them, the microwave magnetron component is respectively set at the top of the oven back panel and the bottom of the front door, with at least one component. The waveguide component is connected to the microwave magnetron component, with the top tilted downwards at a angle between 30° and 45° and the bottom tilted upwards at the same angle to meet the cross radiation requirements. The microwave field distribution component includes a stirring element, a reflecting element, and a shielding element to improve drying uniformity and efficiency while preventing microwave escaping.

[0082] The waveguide component contains a rectangular waveguide, adapted to a 2.45GHz frequency, with dimensions of 43.18mm x 86.36mm, suitable for high-efficiency transmission requirements of an oven with a depth of 33cm;

[0083] The stirring element is located at the top of the oven and is made of metal blades. Through periodic rotation, it can disturb the distribution of the microwave field, break the standing wave effect, avoid local energy accumulation in the oven, and improve the drying uniformity.

[0084] The reflective element is located on the inside of the back plate and has a sawtooth structure, which can enhance microwave scattering and extend the propagation path of microwaves in the cavity;

[0085] The shielding elements include a metallized transparent window, a microwave absorption structure, and choke grooves. The metallized transparent window uses ITO conductive coated glass, balancing microwave shielding and transparency, with a surface resistance of ≤10Ω / sq, reflecting over 99% of microwave energy. The microwave absorption structure is located at the membrane material inlet and outlet, using a silicon carbide coated ceramic structure to suppress microwave leakage from the door gaps through a labyrinthine design. The choke grooves are located around the door frame, with a depth of 1 / 4 of the door frame thickness, forming a high-frequency short circuit to prevent microwave leakage from the door gaps. The waveguide components and microwave magnetron components within the microwave-assisted drying unit correspond one-to-one, providing continuous microwaves to the membrane material while simultaneously aided by a stirring element.

[0086] The technical effects of this embodiment are as follows:

[0087] This constant temperature, wind speed and humidity controlled drying oven incorporates a microwave-assisted drying unit, which can enhance the drying effect on rolled materials. Through optimized structural layout and innovative design, the oven not only has microwave drying function, but also effectively prevents microwave leakage.

[0088] Example 6

[0089] This embodiment relates to the constant temperature, wind speed and humidity control method of the present invention.

[0090] As shown in FIG6, an illustrative embodiment of the present invention provides a method for controlling temperature, airflow, and humidity, applied to a constant temperature, airflow, and humidity drying oven as described in any of Examples 1 to 5, comprising:

[0091] Step S100: After the equipment is started, the first temperature control unit, the first air circulation supply unit, the humidity control unit, and the main control unit start to work. The first temperature control unit continuously heats the circulating air, and the first air circulation supply unit continuously supplies hot air to the drying unit 80.

[0092] Step S200: The first temperature control unit can detect the temperature value inside the drying unit 80 in real time and adjust the heat energy output by the heating element according to the temperature feedback value to avoid the temperature inside the drying unit 80 being too high or too low.

[0093] Step S300: When the temperature reaches the preset value, the drying unit 80 can achieve efficient drying of moving or stationary materials;

[0094] Step S400: As the drying time increases, the humidity control unit will feed back the real-time monitored humidity data to the main control unit. Once the humidity value exceeds the set threshold, an alarm will be triggered, causing the material handling components in the drying unit 80 to stop operating and controlling the exhaust component 70 to work. Under the operation of the first air circulation supply unit, the moisture in the drying unit 80 will be quickly discharged.

[0095] Step S500: The wind speed control unit can provide real-time feedback on the wind speed value in the drying unit. Based on the humidity of the material to be dried, the main control unit can adjust the first temperature control unit, the first air circulation supply unit, and the second temperature control unit to increase or decrease the circulating air speed.

[0096] In step S100, the first air circulation supply unit can also be shut down and the second air circulation supply unit can be started. The second air circulation supply unit will stop the first air circulation component 30 and start the second air circulation component 32 under the control of the main control unit, depending on the number of material layers. At this time, a stable reverse hot air can be continuously supplied to the drying unit 80 to eliminate the uneven drying caused by the original drying unit 80's unilateral air intake.

[0097] Based on the above steps, a humidification unit 32 can be introduced. The humidification unit 32 can continuously provide atomized moisture to the drying unit 80. At this time, the drying unit 80 is not used for material drying. It can work with the temperature control unit to maintain a specific humidity and temperature environment and meet the performance testing requirements of the material under specific temperature and humidity conditions.

[0098] Based on the above steps, a microwave-assisted drying unit 86 can be introduced to increase the drying effect on rolled materials. Through optimized structural layout and innovative design, the oven not only has microwave drying function, but also effectively avoids microwave leakage.

[0099] The constant temperature, wind speed and humidity control oven method of this embodiment can achieve adjustable fresh air and circulating air, hot air circulation and automatic moisture removal. It can achieve stable hot air circulation while ensuring reduced heat loss, thereby improving drying efficiency, improving drying effect and reducing drying time.

[0100] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A constant temperature, wind speed, and humidity controlled drying oven, characterized in that, include: A drying unit, which includes a material handling component, can be used for drying rolled or sheet materials; The first temperature control unit includes a temperature sensing component and a heating component, wherein the heating component can adjust the temperature of fresh air and circulating air according to the temperature value. The first air circulation supply unit includes a first air circulation component and a fresh air control component. The fresh air control component is surrounded by a heating component. The first air circulation component is located after the heating component and before the drying unit. The second air circulation supply unit includes a second air circulation component. The second air circulation component is arranged in parallel with the first air circulation component and can alternately supply air circulation in the forward and reverse directions with the first air circulation component. At the same time, the two sides of the box are alternately heated at the same time, reducing the temperature difference at the far end and making the overall heating more uniform. A main control unit, which is connected to each unit and is used to control each unit separately.

2. The constant temperature, wind speed, and humidity controlled drying oven as described in claim 1, characterized in that, Also includes: A humidity control unit, comprising a humidity sensing component and an exhaust component, wherein the exhaust component is located on the upper part of the drying unit and can adjust the air volume according to the feedback value of the humidity sensing component in the drying unit; A wind speed control unit, comprising a wind speed sensing component, which can display a wind speed value to guide the adjustment of the circulating wind speed.

3. The constant temperature, wind speed, and humidity controlled drying oven as described in claim 1 or 2, characterized in that, Also includes: The humidification unit can be one or more of ultrasonic humidifiers, evaporative humidifiers, and electric heating humidifiers. The humidification unit can set the test environment humidity according to the standard of the material to be tested.

4. The constant temperature, wind speed, and humidity controlled drying oven as described in claim 3, characterized in that, Also includes: The second temperature control unit includes an electric heating element, which is arranged parallel to the running direction of the material to be dried and at a distance of 5-10 mm from the material to be dried, and can provide stable radiant heat to the material to be dried.

5. The constant temperature, wind speed, and humidity controlled drying oven as described in claim 3, characterized in that, Also includes: A microwave-assisted drying unit, located within a drying unit, includes a microwave magnetron component, a waveguide component, and a microwave field distribution component, which can achieve efficient drying of roll-to-roll film materials while preventing microwave leakage. Among them, the microwave magnetron components are respectively set at the top of the back panel of the oven and the bottom of the front door, and the quantity is at least one; The waveguide component is connected to the microwave magnetron component, with the top tilted downwards at a 30° to 45° angle and the bottom tilted upwards at the same angle to meet the cross-radiation requirements. The microwave field distribution component includes a stirring element, a reflecting element, and a shielding element, which improves drying uniformity and efficiency while preventing microwave escaping.

6. The constant temperature, wind speed, and humidity controlled drying oven as described in claim 4 or 5, characterized in that: The incoming air of the fresh air control component first passes through the heating component, and the amount of fresh air entering can be adjusted according to needs. The first and second circulating air components can guide the mixed heated air and fresh air into the drying unit in the forward and reverse directions based on the feedback value of the wind speed sensor. The heating element is located around the fresh air control element and has a flat plate structure, which can maintain the temperature of the circulating air before entering the drying unit within the target range. The humidity control unit can feed back the humidity sensor values ​​to the main control unit, which then controls the exhaust unit and other linked components to adjust the humidity inside the oven.

7. The constant temperature, wind speed, and humidity controlled drying oven as described in claim 6, characterized in that, The fresh air control component is one or both of a fan or a valve, which can control the air volume; The heating element can be a PTC electric heater, and at least one piece is provided. The circulating air component is a centrifugal fan or a ducted fan, which can stably deliver the heated air into the drying unit. The exhaust component includes an electric control element or a manual control element, which can control the amount of air exhausted from the drying unit. The electric control element is located at the top of the oven and can automatically adjust the size of the exhaust fan opening or the exhaust volume based on the data output by the humidity sensor to control the exhaust volume; the manual control element is located at the top of the oven and can manually control the exhaust volume.

8. The constant temperature, wind speed, and humidity controlled drying oven as described in claim 7, characterized in that, The material handling component is located inside the drying unit and can store and convey rolled or non-rolled materials. There is a partition with multiple rows of air holes between the drying unit and the first air circulation supply unit and the second air circulation supply unit. The air circulation supply unit and the second air circulation supply unit work alternately on a regular basis.

9. The constant temperature, fan speed, and humidity control method according to any one of claims 1-8, characterized in that, The implementation method includes the following steps: a: After the equipment is started, the first temperature control unit, the first air circulation supply unit, the humidity control unit, and the main control unit start working. The first temperature control unit continuously heats the circulating air, and the first air circulation supply unit continuously supplies hot air to the drying unit. b: The temperature control unit can monitor the temperature value inside the drying unit in real time and adjust the heat output of the heating element according to the temperature feedback value to avoid the temperature inside the drying unit being too high or too low; c: When the temperature reaches the preset value, the drying unit can achieve efficient drying of moving or stationary materials; d: As the drying time increases, the humidity control unit will feed back the real-time humidity data to the main control unit. Once the humidity value exceeds the set threshold, an alarm will be triggered, causing the material handling components in the drying unit to stop operating and controlling the exhaust components to work. Under the operation of the air circulation supply unit, the moisture in the drying unit will be quickly discharged. e: The wind speed control unit can provide real-time feedback on the wind speed value within the drying unit. Based on the humidity of the material to be dried, the main control unit can adjust the first temperature control unit, the first air circulation supply unit, and the second temperature control unit to increase or decrease the circulating air speed.

10. The method for controlling constant temperature, fan speed, and humidity according to claim 8, characterized in that, Also includes: The second air circulation supply unit will stop the first circulation air component and start the second circulation air component under the control of the main control unit, depending on the number of material layers. At this time, it can continuously provide stable hot air in the opposite direction to the drying unit, eliminating problems such as uneven drying caused by the original drying unit. The humidification unit can continuously provide atomized moisture to the drying unit. At this time, the drying unit is not used for material drying. It can work with the temperature control unit to maintain a specific humidity and temperature environment and meet the performance testing requirements of materials under specific temperature and humidity conditions. The microwave-assisted drying unit can continuously and uniformly emit microwaves onto the roll-to-roll film within the drying unit. At the same time, a stirring element can disperse the microwaves, and a reflective element can enhance microwave scattering. Together with a microwave shielding element, it can achieve efficient drying of the roll-to-roll film.

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