An electric heating drying oven

Abstract

This utility model discloses an electric heating forced-air drying oven, relating to the technical field of drying ovens. The electric heating forced-air drying oven includes an outer shell and a controller on one side. An exhaust port is provided at the upper end of the outer shell, and cavities are provided on both sides of the outer shell. Mounting holes are provided on the side walls of the cavities, and an air outlet plate (first and second) is rotatably mounted in each of the two mounting holes. The first and second air outlet plates are connected by an air duct, and the air inlet of the air duct is connected to the air outlet of a heating pipe. The air inlet of the heating pipe is connected to the air outlet of a blower. This utility model, through the rotating air outlet plates and the staggered air outlet design, achieves uniform airflow distribution inside the drying oven, effectively improving temperature consistency and drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drying oven technology, and in particular to an electric heating forced-air drying oven. Background Technology

[0002] Electric heating drying ovens are commonly used heating equipment in laboratories and industrial production, and are widely used in sample drying, constant temperature testing, and material aging treatment.

[0003] Traditional drying ovens typically use fixed air outlets with a single-side or top blower structure. While this achieves air circulation to some extent, the fixed air supply angle and uneven airflow coverage often result in significant temperature differences in different areas of the oven, affecting the consistency of sample processing and the accuracy of experimental results.

[0004] In addition, some drying ovens lack effective control over the direction and intensity of airflow, resulting in high energy consumption and slow temperature regulation response, making it difficult to meet the needs of high precision and multi-scenario use. Utility Model Content

[0005] This utility model provides an electric heating blower drying oven, including an outer shell and a controller on one side. The upper end of the outer shell has an exhaust hole, and both sides of the outer shell have cavities. The side walls of the cavities have mounting holes. An air outlet plate one and an air outlet plate two are rotatably installed in the two mounting holes respectively. The air outlet plate one and the air outlet plate two are connected by an air duct, and the air inlet of the air duct is connected to the air outlet of the heating pipe. The air inlet of the heating pipe is connected to the air outlet of the blower.

[0006] Preferably, driven wheels are connected to the outer side of the pipes of both the first and second air outlet plates. The driven wheels mesh with the driving wheels, which are driven by a motor. The pipes of the first and second air outlet plates are rotatably connected to both ends of the air duct.

[0007] Preferably, both the first and second air outlet plates are provided with rotating rings on their outer sides, and the rotating rings rotate within the rotating grooves opened in the mounting holes.

[0008] Preferably, solenoid valve one and solenoid valve two are installed at both ends of the air duct, respectively.

[0009] Preferably, the air outlets of the first and second air outlet plates are staggered.

[0010] Preferably, heating tubes are provided at both the upper and lower ends inside the outer shell, and the heating tubes are isolated by anti-scalding plates. Multiple sets of opposing sliding grooves are opened on the inner walls of both sides of the outer shell, and shelves are slidably installed between the opposing sliding grooves.

[0011] The electric heating forced-air drying oven provided in this embodiment of the utility model, compared with the prior art:

[0012] 1. This utility model achieves efficient air circulation by installing air outlet plate one and air outlet plate two in cavities set on both sides of the outer shell and connecting them to a blower through air ducts. Air outlet plate one and air outlet plate two can be driven by a motor to rotate the driven wheel, thereby expanding the air delivery area. This design not only ensures uniform airflow distribution inside the drying chamber but also optimizes temperature consistency, solving the problem of large temperature differences in different areas inside traditional drying chambers. The staggered arrangement of the air outlets of air outlet plate one and air outlet plate two further enhances the coverage and efficiency of airflow, making heat distribution more uniform and improving the quality and efficiency of sample processing.

[0013] 2. By installing solenoid valve one and solenoid valve two at both ends of the air duct, this utility model can precisely control the direction and intensity of airflow according to actual needs, further improving the energy efficiency ratio, significantly improving the temperature uniformity, energy consumption efficiency and ease of operation during the drying process, and providing users with an efficient and reliable drying solution. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the outer shell of an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the cavity in an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the mounting holes and other structures in an embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of the structure of air outlet plate one and air outlet plate two in an embodiment of this utility model;

[0020] Figure 6 This is a schematic diagram of the secondary structure of the air outlet plate in an embodiment of this utility model.

[0021] Figure label:

[0022] 1. Outer shell; 2. Exhaust vent; 3. Slide groove; 4. Shelf; 5. Heating element; 6. Anti-scalding plate; 7. Mounting hole; 8. Cavity; 9. Rotary groove; 10. Controller; 11. Air outlet plate one; 12. Air outlet plate two; 13. Rotary ring; 14. Air duct; 15. Solenoid valve one; 16. Solenoid valve two; 17. Blower; 18. Driven wheel; 19. Driven wheel; 20. Heating pipe. Detailed Implementation

[0023] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0024] Please refer to Figures 1-6 This utility model provides an electric heating forced-air drying oven, including an outer shell 1. A controller 10 is provided on one side of the outer shell 1 for adjusting parameters such as temperature and wind speed. An exhaust port 2 is provided on the top of the outer shell 1 to allow moisture or excess heat generated inside the outer shell 1 to dissipate, ensuring the stability and safety of the drying process.

[0025] Cavities 8 are symmetrically formed on the left and right sides of the outer casing 1, and each cavity 8 has a mounting hole 7 on its side wall. An air outlet plate 11 and an air outlet plate 12 are rotatably installed in the two mounting holes 7, respectively. The two are connected to each other by an air duct 14, and the air inlet of the air duct 14 is connected to the air outlet of the heating pipe 20. The air inlet of the heating pipe 20 is connected to the air outlet of the blower 17, forming a complete air circulation channel. The heating pipe 20 has an electric heating wire built in it, which can heat the air generated by the blower 17.

[0026] Furthermore, driven wheels 18 are fixedly connected to the outer sides of the ducts of air outlet plate 11 and air outlet plate 12, respectively. The driven wheels 18 mesh with the driving wheels 19 for transmission. The driving wheels 19 are driven to rotate by a motor, thereby driving air outlet plate 11 and air outlet plate 12 to rotate synchronously, realizing the dynamic air supply function. The ends of the ducts of air outlet plate 11 and air outlet plate 12 are rotatably connected to both ends of the air duct 14 through a sealing structure, ensuring smooth airflow without affecting the rotation.

[0027] To improve the stability of the rotation of air outlet plate 11 and air outlet plate 2 12, a rotating ring 13 is provided on the outer side of air outlet plate 11 and air outlet plate 2 12. The rotating ring 13 is embedded in the rotating groove 9 opened in the inner wall of the mounting hole 7 to achieve the functions of support and guidance, and to ensure that air outlet plate 11 and air outlet plate 2 12 run smoothly and without deviation during rotation.

[0028] In addition, solenoid valve 15 and solenoid valve 2 16 are installed at both ends of the air duct 14, which can control the opening and closing of the air path according to actual needs, flexibly adjust the air supply direction and air volume distribution, and improve energy efficiency.

[0029] In terms of air supply layout, the air outlets of air outlet plate 11 and air outlet plate 22 are arranged in an alternating manner, which makes the airflow more evenly distributed inside the drying chamber, effectively improving the local temperature difference problem commonly found in traditional equipment and enhancing the drying effect.

[0030] An inspection door is provided on the rear side of the outer casing 1 to facilitate the maintenance of the internal equipment.

[0031] Heating tubes 5 are installed at the top and bottom ends inside the outer casing 1 to provide heating energy. A heat shield 6 is provided between the heating tubes 5 and the sample space of the outer casing 1 to prevent the sample from directly contacting the high-temperature components, thus ensuring the safety of the sample and improving operational safety.

[0032] The heating element 5 is made of conventional heating elements such as heating wire or PTC ceramic, and is used to provide stable heating energy to the outer casing 1. The heating element 5 is connected to the power supply via wires and is controlled by the controller 10 to achieve temperature regulation.

[0033] In this embodiment, the controller 10 includes a temperature setting module and a heating control module. The user can set the desired drying temperature through the input interface of the controller 10. The controller 10 has a temperature control chip inside, and its signal input terminal is connected to a temperature sensor (not shown) located inside the outer casing 1, which is used to collect the temperature data inside the chamber in real time.

[0034] When the equipment is running, the controller 10 automatically adjusts the working state (on or off) of the heating element 5 based on the difference between the current temperature and the set temperature using a PID control algorithm or a switching control method, thereby maintaining the temperature inside the casing 1 within the set range. For example, when the actual temperature is lower than the set value, the controller 10 outputs a control signal to power on the heating element 5. Once the set temperature is reached, the controller 10 controls the heating element 5 to power off and stop heating, and restarts it if necessary, thus achieving constant temperature control.

[0035] Furthermore, the anti-scalding plate 6 is fixedly installed between the heating tube 5 and the sample space. It is made of metal or high-temperature resistant insulating material with good thermal conductivity and a smooth surface. It effectively isolates the sample from direct contact with the high-temperature heating element, preventing the sample from deteriorating or being damaged due to overheating, while not affecting the heat transfer to the sample space, ensuring heating efficiency. At the same time, the design of the anti-scalding plate 6 also improves the safety of operators when placing or removing samples, reducing the risk of burns.

[0036] Multiple sets of opposing sliding grooves 3 are provided on the inner walls of both sides of the outer casing 1. A shelf 4 is slidably installed between each set of sliding grooves 3. Users can flexibly adjust the position of the shelf 4 according to the height and quantity of the items to be dried, thereby improving space utilization and ease of use.

[0037] In summary, the working principle of the electric heating drying oven of this utility model embodiment is as follows: After the equipment is started, the user sets the required drying temperature through the controller 10. The controller 10 controls the heating tube 5 to be energized and heated according to the real-time data fed back by the temperature sensor. When the temperature reaches the set value, it enters a constant temperature state. At the same time, the blower 17 is started, and hot air is delivered to the air outlet plate 11 and the air outlet plate 22 through the heating pipe 20 and the air duct 14. The motor drives the drive wheel 19 to drive the driven wheel 18 to rotate, thereby driving the air outlet plate 11 and the air outlet plate 22 to rotate synchronously, so that the hot air is dynamically delivered into the interior of the outer shell 1 from the staggered air outlets, so as to achieve uniform airflow distribution. The solenoid valve 15 and the solenoid valve 26 control the airflow as needed to further optimize the air supply direction and air volume distribution. The hot air circulates in the outer shell 1, carrying away the moisture on the sample surface. The hot and humid air is discharged through the top exhaust hole 2, ensuring that the drying process is stable.

[0038] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electric heating forced-air drying oven, comprising a shell (1) and a controller (10) on one side, characterized in that: The upper end of the outer shell (1) is provided with an exhaust hole (2), and both sides of the outer shell (1) are provided with cavities (8). The side wall of the cavity (8) is provided with an installation hole (7). An air outlet plate one (11) and an air outlet plate two (12) are rotatably installed in the two installation holes (7). The air outlet plate one (11) and the air outlet plate two (12) are connected by an air pipe (14), and the air inlet of the air pipe (14) is connected to the air outlet of the heating pipe (20). The air inlet of the heating pipe (20) is connected to the air outlet of the blower (17).

2. The electric heating forced-air drying oven according to claim 1, characterized in that: Both the outer side of the pipes of the first air outlet plate (11) and the second air outlet plate (12) are connected to driven wheels (18). The driven wheels (18) mesh with the driving wheels (19). The driving wheels (19) are driven by a motor. The pipes of the first air outlet plate (11) and the second air outlet plate (12) are rotatably connected to both ends of the air duct (14).

3. The electric heating forced-air drying oven according to claim 2, characterized in that: Both the first air outlet plate (11) and the second air outlet plate (12) are provided with a rotating ring (13) on their outer sides. The rotating ring (13) rotates in the rotating groove (9) opened in the mounting hole (7).

4. The electric heating forced-air drying oven according to claim 3, characterized in that: Solenoid valve one (15) and solenoid valve two (16) are respectively installed at both ends of the air duct (14).

5. The electric heating forced-air drying oven according to claim 4, characterized in that: The air outlets of the first air outlet plate (11) and the second air outlet plate (12) are arranged alternately.

6. The electric heating forced-air drying oven according to claim 1, characterized in that: Heating tubes (5) are provided at both the upper and lower ends inside the outer shell (1). The heating tubes (5) are isolated by anti-scalding plates (6). Multiple sets of opposing sliding grooves (3) are opened on the inner walls of both sides of the outer shell (1). A shelf (4) is slidably installed between the opposing sliding grooves (3).

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