Drying oven air volume control device

Abstract

The utility model relates to the technical field of drying ovens, and discloses a drying oven air volume control device which comprises a drying oven, a plurality of mutually independent air cavities are elaborately arranged in the drying oven, heating pipes are arranged in the air cavities, air pipes are installed at the top ends of the air cavities in a detachable connection mode, adjusting valves are arranged on the outer walls of the air pipes, and the heating pipes are connected with the adjusting valves. An air volume sensor and a small fan are accurately installed at the two ends of the air pipe correspondingly, when the device is used, the multiple small fans can be arranged, each small fan is tightly connected with the corresponding air cavity in the drying oven through a heating pipe, and the air volume of different areas in the drying oven can be adjusted by setting the rotating speed of the single small fan; the air volume can be accurately set according to the material characteristics and requirements of different areas, personalized drying can be achieved by adjusting the air volume of the corresponding air cavity, it is ensured that materials in each area can obtain the most suitable drying condition, and the uniformity of the drying quality is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oven, concretely is a kind of oven air volume control device. BACKGROUND

[0002] In the production process of compound machine, oven is one of key equipment, and the air volume control in oven has crucial influence on product quality.

[0003] However, the existing oven air volume control mode has many problems, for example: the traditional oven has serious limitations, it uses the way of fan uniform delivery hot air, the simple design makes it impossible to accurately set air volume according to the characteristics of materials in different time periods and the demand of corresponding area in drying process, and air volume adjustment is not accurate enough, resulting in uneven temperature distribution in oven, affecting the compounding effect of composite material, and the response speed of air volume control device is slow, cannot adjust air volume in time according to the change of production process.

[0004] To solve the above problems, an oven air volume control device is proposed in the present application. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an oven air volume control device to solve the problems of the existing oven air volume control device in the background art, which cannot accurately set air volume according to the demand of corresponding area in oven and has slow response speed.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an oven air volume control device, comprising an oven, a plurality of independent air chambers are arranged in the oven, heating pipes are installed in the air chambers, air pipes are detachably connected to the top ends of the air chambers, adjusting valves are arranged on the outer walls of the air pipes, air volume sensors and small fans are installed at the two ends of the air pipes, frequency converters are connected to the rear ends of the small fans, the small fans and the frequency converters are located outside the oven, and control components are fixedly installed on the other side of the oven.

[0007] Preferably, the air volume sensor is installed in the air pipe in the corresponding air chamber, for real-time detection of the air volume in the air pipe, and conversion of the air volume signal into an electrical signal.

[0008] Preferably, the control components are electrically connected to the adjusting valves, air volume sensors and frequency converters, and microprocessors are installed in the control components for receiving electrical signals from the air volume sensors.

[0009] Preferably, the frequency converter is electrically connected to the small fan, and the speed of the small fan is adjusted according to the instructions from the control components.

[0010] Preferably, the regulating valve is a solenoid valve, comprising an electromagnetic component and a valve body. The electromagnetic component is directly mounted on the valve body, which is enclosed within a heating tube.

[0011] Preferably, the air inlet of the small fan is equipped with a filter screen to filter the air entering the air drying oven.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention incorporates multiple small fans, each tightly connected to a corresponding air chamber within the drying oven via a heating pipe. By adjusting the rotation speed of a single small fan, the airflow in different areas of the drying oven can be controlled. This allows for precise airflow settings tailored to the material characteristics and needs of different areas. By adjusting the airflow in the corresponding air chamber, personalized drying can be achieved, ensuring that materials in each area receive the most suitable drying conditions and effectively improving the uniformity of drying quality.

[0014] This invention employs an advanced high-performance microprocessor and efficient control algorithm in its control components, enabling it to quickly process signals from the air volume sensor and promptly send commands to the frequency converter, allowing the speed of the small fan to be rapidly adjusted to meet the needs of rapidly changing production processes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of an oven airflow control device according to the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the oven in the oven airflow control device of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure of the air duct in an oven air volume control device according to the present invention;

[0018] Figure 4 This is a structural block diagram of an oven airflow control device according to the present invention;

[0019] In the diagram: 1. Oven; 2. Air chamber; 3. Heating element; 4. Air duct; 5. Regulating valve; 6. Air volume sensor; 7. Small fan; 8. Frequency converter; 9. Control components; 10. Filter. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1-4This utility model provides a technical solution: an oven airflow control device, including an oven 1, the oven 1 having multiple independent air chambers 2 inside, and each air chamber 2 having a heating tube 3 installed inside. An air duct 4 is detachably connected to the top of each air chamber 2, and a regulating valve 5 is provided on the outer wall of the air duct 4. An airflow sensor 6 and a small fan 7 are respectively installed at both ends of the air duct 4. A frequency converter 8 is connected to the rear end of the small fan 7. Both the small fan 7 and the frequency converter 8 are located on the outside of the oven 1, and a control component 9 is fixedly installed on the other side of the oven 1. The airflow sensor 6 is installed inside the air duct 4 in the corresponding air chamber 2. The control component 9 is used to detect the air volume in the duct 4 in real time and convert the air volume signal into an electrical signal. It is electrically connected to the regulating valve 5, the air volume sensor 6, and the frequency converter 8. It is equipped with a microprocessor to receive the electrical signal from the air volume sensor 6. The frequency converter 8 is electrically connected to the small fan 7 and adjusts the speed of the small fan 7 according to the instructions issued by the control component 9. The regulating valve 5 is a solenoid valve, which includes an electromagnetic component and a valve body. The electromagnetic component is directly installed on the valve body, and the valve body is enclosed in the heating tube 3. The air inlet of the small fan 7 is equipped with a filter screen 10 to filter the air entering the air drying box 1.

[0022] When materials need to be dried, the operator first inputs relevant parameters, including target temperature, drying time, and initial airflow setting, through the control component 9's operating interface, based on the material's composition, size, and drying process requirements. Upon receiving the parameters, control component 9 sends a start command to heating element 3, which then begins operation, heating the air in air chamber 2. Simultaneously, control component 9 sends a command to frequency converter 8, which adjusts its output current frequency accordingly, starting the small fan 7 and adjusting its speed to the initial setting, driving airflow within duct 4 and air chamber 2. During the drying process, airflow sensor 6 monitors the airflow within duct 4 in real time and converts the airflow data into an electrical signal, transmitting it to control component 9. Upon receiving the electrical signal, control component 9 activates its internally preset control algorithm, analyzing and processing the signal based on the preset temperature curve within oven 1 and the specific airflow requirements of the current material's drying stage. If the current airflow deviates from the preset value, control component 9 sends a precise control command to frequency converter 8. For example, when the detected airflow is lower than the preset value, the control component 9 instructs the frequency converter 8 to increase the output frequency, the small fan 7 to speed up, and the airflow to increase; conversely, when the airflow is higher than the preset value, the frequency converter 8 decreases the output frequency, the small fan 7 to speed up, and the airflow to decrease. During the initial start-up of the small fan 7 or during fine-tuning of the airflow, the regulating valve 5 can, according to the actual situation, manually or automatically adjust the airflow in the duct 4, working in conjunction with the frequency converter 8 to achieve more precise airflow control. Operators can view real-time operating data such as airflow and temperature inside the drying oven 1 through the control component 9's operating interface. If any component, such as the airflow sensor 6, control component 9, frequency converter 8, or small fan 7, malfunctions during the drying process, the control component 9 will immediately trigger a fault alarm function, issuing an alarm signal to remind maintenance personnel to perform repairs. Simultaneously, the filter 10 continuously filters the air entering the drying oven 1, preventing dust, particulate matter, and other impurities from entering, protecting equipment components, and ensuring that the drying effect is not affected. Once drying is complete, control component 9 stops heating the heating element 3, and the small fan 7 gradually reduces its speed until it stops. During equipment maintenance, because the air duct 4 at the top of the air chamber 2 adopts a detachable connection design, maintenance personnel can easily disassemble the air duct 4 to inspect, clean, and repair the heating element 3 and other components inside the air chamber 2.

[0023] Working principle:

[0024] An airflow sensor 6 is installed inside the air duct 4 within the air chamber 2, playing a crucial role in accurately detecting the airflow within the duct 4 in real time. Once airflow data is detected, the airflow sensor 6 quickly converts the airflow signal into an electrical signal and transmits it to the control component 9, providing data for subsequent airflow adjustment. The control component 9 houses a high-performance microprocessor, electrically connected to the regulating valve 5, the airflow sensor 6, and the frequency converter 8. Upon receiving the electrical signal from the airflow sensor 6, the microprocessor performs rapid and precise analysis and processing of the signal based on its internal preset control algorithm. After analysis, the control component 9 sends control commands to the frequency converter 8 based on the processing results to determine the direction and magnitude of airflow adjustment. The frequency converter 8 is connected to a small fan 7, and it precisely adjusts the speed of the small fan 7 according to the commands issued by the control component 9. When airflow needs to be increased, the frequency converter 8 increases the speed of the small fan 7; when airflow needs to be decreased, the frequency converter 8 decreases the speed of the small fan 7, thereby achieving precise control of the airflow in the oven 1. Meanwhile, the regulating valve 5 on the outer wall of the air duct 4 is used to initially regulate the air volume within the air duct 4. In conjunction with the frequency converter 8, it further improves the accuracy of air volume regulation, making the regulation more flexible and efficient. A filter screen 10 is installed at the air inlet of the small fan 7. Its function is to filter the air entering the drying oven 1, effectively preventing impurities from entering and avoiding adverse effects on the drying effect and normal operation of the equipment. The heating pipe 3 installed inside the air cavity 2 heats the air within the air cavity 2, ensuring that the air inside the drying oven 1 reaches the temperature required for the drying process, meeting the drying needs of different products.

[0025] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. An oven airflow control device, comprising an oven (1), characterized in that: The oven (1) has multiple independent air chambers (2) inside, and each air chamber (2) is equipped with a heating tube (3). The top of the air chamber (2) is detachably connected to an air duct (4). The outer wall of the air duct (4) is equipped with a regulating valve (5). The two ends of the air duct (4) are respectively equipped with an air volume sensor (6) and a small fan (7). The rear end of the small fan (7) is connected to a frequency converter (8). The small fan (7) and the frequency converter (8) are both located on the outside of the oven (1), and a control component (9) is fixedly installed on the other side of the oven (1).

2. The oven airflow control device according to claim 1, characterized in that: The air volume sensor (6) is installed in the air duct (4) in the corresponding air cavity (2) to detect the air volume in the air duct (4) in real time and convert the air volume signal into an electrical signal.

3. The oven airflow control device according to claim 1, characterized in that: The control component (9) is electrically connected to the regulating valve (5), the air volume sensor (6) and the frequency converter (8), and has a microprocessor installed inside to receive electrical signals from the air volume sensor (6).

4. The oven airflow control device according to claim 1, characterized in that: The frequency converter (8) is electrically connected to the small fan (7) and adjusts the speed of the small fan (7) according to the instructions issued by the control component (9).

5. The oven airflow control device according to claim 1, characterized in that: The regulating valve (5) is a solenoid valve, which includes two parts: an electromagnetic component and a valve body. The electromagnetic component is directly installed on the valve body, and the valve body is enclosed in the heating tube (3).

6. The oven airflow control device according to claim 1, characterized in that: The small fan (7) is equipped with a filter screen (10) at its air inlet to filter the air entering the air drying oven (1).

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