Drying oven air spraying pipe capable of adjusting uniform air outlet

Abstract

The utility model relates to the field of thin film drying ovens, in particular to a drying oven air spraying pipe capable of adjusting uniform air outlet. An oven blast pipe capable of adjusting uniform air outlet comprises a main pipe body with one end being an open end and the other end being a closed end; an air chamber communicated with the open end is arranged in the main pipe body, and the internal space of the air chamber is gradually reduced from the open end to the closed end; one side of the main pipe body is arranged to be an air outlet side, the air outlet side serves as the side wall of the air chamber at the same time, a plurality of first air outlet holes are formed in the air outlet side, and the first air outlet holes are distributed in the length direction of the main pipe body. The hot air flow entering from the opening end is gradually accelerated in the air chamber, so that the flow speeds of the air flows in the first air outlet holes in different positions can be ensured to be relatively consistent, the air outlet uniformity of the air spraying pipe is ensured, and the air spraying pipe is applied to the drying oven, so that the drying effect of the drying oven is favorably improved.

Description

Technical Field

[0001] The present application relates to the field of film drying ovens, and in particular to a drying oven air blower with adjustable and uniform air discharge. Background Art

[0002] Currently, film drying ovens typically use a hot air flow drying method, which involves introducing a constant temperature of hot air into the oven. To achieve this, the oven is equipped with an air duct (injection duct) and a return air duct. The air duct introduces the hot air into the oven, while the return air duct recycles the hot air within the oven, creating a circulating airflow within the oven and improving the drying effect.

[0003] Typically, a nozzle pipe is of a certain length and is provided with a number of air outlets arranged along its length. One end of the nozzle pipe is open and connected to a hot air device, while the other end is closed. The hot air device generates a hot air flow, which enters the nozzle pipe and is ejected from the air outlets.

[0004] However, due to the certain length of the air nozzle, the air velocity in the air outlet close to the hot air device is faster, while the air velocity in the air outlet far from the hot air device is lower, which affects the uniformity of the air outlet and further affects the drying effect of the oven. Utility Model Content

[0005] In order to improve the uniformity of air output, the present application provides an oven air spray duct with adjustable uniform air output.

[0006] The oven air duct with adjustable and uniform air discharge provided in this application adopts the following technical solutions:

[0007] An oven air blower duct capable of adjusting and uniformly discharging air comprises: a main body having an open end at one end and a closed end at the other end; an air chamber in communication with the open end is provided inside the main body, and the internal space of the air chamber gradually decreases from the open end to the closed end;

[0008] One side of the main body is set as the air outlet side, and the air outlet side also serves as the side wall of the air chamber. A plurality of first air outlet holes are opened on the air outlet side, and the first air outlet holes are distributed along the length direction of the main body.

[0009] By adopting the above technical solution, the hot air flow entering from the open end is gradually accelerated in the air chamber, thereby ensuring that the air flow rate in the first air outlet at different positions is relatively consistent, so as to ensure the uniformity of the air outlet of the spray pipe. Applying the spray pipe to the oven helps to improve the drying effect of the oven.

[0010] Preferably, an adjustment plate is provided inside the main body, and the adjustment plate is arranged along the length direction of the main body. One end of the adjustment plate is hinged to the main body, and the other end is movably provided; the space between the adjustment plate and the air outlet side is an air chamber; an adjustment component is also provided on the main body, and the adjustment component is connected to the adjustment plate and is used to control the inclination of the adjustment plate.

[0011] By adopting the above technical solution, the adjustment plate can rotate freely within a certain range, facilitating flexible adjustment according to needs. The space between the adjustment plate and the air outlet is the air chamber, and the size of the air chamber can be changed by adjusting the inclination of the adjustment plate.

[0012] Preferably, the adjustment plate includes a main board and two wing boards, and the main board and the two wing boards are distributed in a C shape; the two wing boards are both in contact with the inner wall of the main body, and the side wall of the main body in contact with the wing boards is set to be a plane.

[0013] By adopting the above technical solution, the adjustment plate is arranged in a C-shape as a whole, which can better guide the airflow. At the same time, the setting of the wing plate helps to improve the air tightness between the adjustment plate and the main body.

[0014] Preferably, the adjustment assembly includes a threaded rod, one end of which is hinged to the adjustment plate, and the other end passes through the main body and extends to the outside of the main body. An adjustment nut is rotatably connected to the main body, and the adjustment nut is threadedly engaged with the threaded rod.

[0015] By adopting the above technical solution, the threaded rod can be driven to move by simply rotating the adjusting nut, thereby easily adjusting the inclination of the adjusting plate.

[0016] Preferably, it also includes a secondary tube body, which is located on one side of the main tube body, and the interior of the secondary tube body is connected to the main tube body through the first air outlet; the secondary tube body is also provided with a second air outlet, and the directions of the first air outlet and the second air outlet are intersecting with each other.

[0017] By adopting the above technical solution, the airflow will not be discharged directly from the second air outlet after passing through the first air outlet, but will first fill the auxiliary tube body and then be discharged from the second air outlet, thereby effectively improving the uniformity of the airflow when passing through the second air outlet.

[0018] Preferably, an air guide plate is further provided inside the auxiliary tube body, and the air guide plate is located at the first air outlet and the second air outlet. One side of the air guide plate is fixedly connected to the auxiliary tube body, and a gap is left between the other side and the auxiliary tube body.

[0019] By adopting the above technical solution, the air guide plate can divide the internal space of the auxiliary tube body into two air chambers, and guide the hot air flow so that the hot air flow passes through the two air chambers in sequence. This design can effectively guide the air flow ejected from the first air outlet to the second air outlet, ensuring that the air flow is ejected in a more uniform manner.

[0020] Preferably, the air guide plate includes a first support plate and a second support plate, the first support plate and the second support plate are arranged in an L shape, the first support plate is fixedly connected to the auxiliary tube body and is arranged opposite to the second air outlet, and the second support plate is arranged opposite to the inner wall of the auxiliary tube body and leaves a gap.

[0021] By adopting the above technical solution, the smooth passage of airflow is ensured, and the direct impact of airflow on the air guide plate is avoided, so that the airflow distribution is more uniform.

[0022] Preferably, two auxiliary pipes are provided and are symmetrically distributed on both sides of the main pipe.

[0023] By adopting the above technical solution, this double-sub-tube design can further increase the air outlet area and improve the drying efficiency. It also helps to distribute the airflow more evenly in the oven, thereby improving the drying effect.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By setting up a wind chamber with gradually decreasing space in the main body, the wind speed is increased, so that the air flow rate in the first air outlet at different positions is relatively consistent, thereby ensuring the uniformity of the air outlet of the nozzle pipe;

[0026] 2. The deflection angle of the regulating plate can be adjusted by adjusting the assembly, thereby adjusting the size of the wind chamber to adapt to different wind speed requirements;

[0027] 3. This application sets up a secondary pipe body, and effectively improves the air supply area and the uniformity of the air spray through the secondary pipe body, thereby helping to improve the drying effect of the oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of the oven air duct capable of adjusting and uniformly discharging air in Example 1 of the present application;

[0029] Figure 2 This is a schematic structural diagram of an oven air blower duct capable of adjusting and uniformly discharging air in Example 2 of the present application;

[0030] Figure 3 It is a schematic diagram for illustrating the structure of the adjustment plate in Example 2 of the present application;

[0031] Figure 4This is a schematic structural diagram of the oven air blower duct capable of adjusting and uniformly discharging air in Example 3 of the present application.

[0032] Markings in the accompanying drawings: 1. main pipe body; 11. air chamber; 12. first air outlet; 2. adjustment plate; 21. main board; 22. wing plate; 3. adjustment assembly; 31. threaded rod; 32. adjustment nut; 33. bracket; 4. auxiliary pipe body; 41. second air outlet; 5. air guide plate; 51. first support plate; 52. second support plate. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 This application is described in further detail.

[0034] Example 1

[0035] The embodiment of the present application provides an oven air duct capable of adjusting and uniformly discharging air, such as Figure 1 As shown, it includes a main body 1, one end of the main body 1 is an open end, and the other end is a closed end. A wind chamber 11 connected to the open end is provided inside the main body 1, and the internal space of the wind chamber 11 gradually decreases from the open end to the closed end. Such a structure allows the hot air flow entering from the open end to gradually accelerate in the wind chamber 11, thereby achieving uniform air discharge. One side of the main body 1 is set as the air outlet side, and at the same time serves as the side wall of the wind chamber 11, on which a number of first air outlet holes 12 are opened. The first air outlet holes 12 are evenly distributed along the length direction of the main body 1 to ensure that the air flow can be evenly ejected from the first air outlet holes 12.

[0036] Specifically, in order to achieve a gradual change in the internal space of the air chamber 11 , the main pipe 1 may be a reducer, that is, the cross-sectional area of ​​the main pipe 1 gradually decreases from the open end to the closed end.

[0037] Preferably, the main body 1 may also be a straight pipe of equal diameter, and an inclined baffle is provided inside the main body 1, which can also form an air chamber 11 with a gradually changing internal space, so as to achieve the purpose of uniform air spraying.

[0038] In the embodiment of the present application, the main body 1 can be a round tube, a square tube or other shapes.

[0039] Example 2

[0040] This embodiment discloses an oven air duct capable of adjusting and uniformly discharging air. The difference from the embodiment 1 is that, referring to Figure 2 and Figure 3The baffle in Example 1 is replaced with an adjustment plate 2. The oven air duct, which provides for uniform and adjustable air flow, further includes an adjustment plate 2, which extends along the length of the main body 1. One end of the adjustment plate 2 is hinged to the main body 1, while the other end is movable. This allows the adjustment plate 2 to rotate freely within a certain range, facilitating flexible adjustment as needed. The space between the adjustment plate 2 and the air outlet defines the air chamber 11. Adjusting the inclination of the adjustment plate 2 changes the size of the air chamber 11.

[0041] In order to ensure the normal rotation of the adjustment plate 2, the main body 1 can be a square tube, or only the side wall of the main body 1 perpendicular to the adjustment plate 2 can be set as a flat surface.

[0042] To facilitate user adjustment of the inclination of the adjustment plate 2, the main body 1 is also equipped with an adjustment assembly 3. This adjustment assembly 3 comprises a threaded rod 31, one end of which is hingedly connected to the adjustment plate 2 and the other end of which extends through the main body 1 and outward. An adjustment nut 32 is threadedly engaged with the threaded rod 31 on the outside of the main body 1. A bracket 33 is also fixed to the outer wall of the main body 1, and the adjustment nut 32 is rotatably connected to the bracket 33. The user simply rotates the adjustment nut 32 to move the threaded rod 31, allowing for easy adjustment of the inclination of the adjustment plate 2.

[0043] At the same time, since the threaded rod 31 will also slightly swing when the adjustment plate 2 swings, in order to ensure the normal operation of the threaded rod 31 , the bracket 33 can be rotatably connected to the main body 1 .

[0044] Preferably, since the swing amplitude of the threaded rod 31 is relatively small, the bracket 33 may be fixedly connected to the main body 1 , and the bracket 33 is made of a material that can produce elastic deformation.

[0045] Reference Figure 3 In the embodiment of the present application, the adjustment plate 2 is composed of a main board 21 and two wing plates 22, and the two wing plates 22 are located on the same side of the adjustment plate 2 and have a C-shaped structure as a whole. The side of the main board 21 facing the wing plates 22 is also arranged toward the air outlet side of the main body 1. The two wing plates 22 are tightly abutted against the inner wall of the main body 1, which can improve the air tightness between the adjustment plate 2 and the main body 1.

[0046] Example 3

[0047] This embodiment discloses an oven air blower duct capable of adjusting and evenly discharging air. Based on the embodiment 2, a secondary pipe body 4 is added.

[0048] Reference Figure 4In the embodiment of the present application, two auxiliary tube bodies 4 are provided and are symmetrically distributed on both sides of the main tube body 1. The first air outlet 12 is located on the side of the main tube body 1 facing the auxiliary tube body 4, and the interior of the auxiliary tube body 4 is connected to the main tube body 1 through the first air outlet 12, thereby realizing smooth transmission of airflow. Both ends of the auxiliary tube body 4 are closed.

[0049] A second air outlet 41 is also provided on the auxiliary tube body 4. The directions of the second air outlet 41 and the first air outlet 12 are intersected with each other, so that the airflow will not be directly discharged from the second air outlet 41 after passing through the first air outlet 12, but will first fill the auxiliary tube body 4 and then be discharged from the second air outlet 41. Therefore, the uniformity of the airflow when passing through the second air outlet 41 can be effectively improved.

[0050] The oven air duct with adjustable uniform air flow in the embodiment of the present application is typically installed at the bottom of the oven. Therefore, the second air outlet 41 is located at the top of the auxiliary pipe 4 and faces upward, allowing the hot air flow to move from the bottom of the oven to the top. The first air outlet 12 is oriented horizontally.

[0051] To further optimize the airflow distribution, a deflector plate 5 is provided inside the auxiliary tube body 4. This deflector plate 5 is located between the first air outlet 12 and the second air outlet 41, guiding the airflow. One side of the deflector plate 5 is securely connected to the auxiliary tube body 4, while the other side maintains a certain gap between the two sides, allowing for smooth airflow. The deflector plate 5 divides the internal space of the auxiliary tube body 4 into two air chambers 11, through which the hot air flows. This design effectively guides the airflow ejected from the first air outlet 12 to the second air outlet 41, ensuring a more uniform airflow.

[0052] As a further optimization, the air guide plate 5 can be designed as an L-shaped structure consisting of a first support plate 51 and a second support plate 52. The first support plate 51 is fixedly connected to the side of the auxiliary pipe body 4 close to the main pipe body 1 and is arranged opposite the second air outlet 41, while the second support plate 52 is opposite the side of the auxiliary pipe body 4 away from the main pipe body 1, maintaining a certain gap. This ensures smooth passage of airflow while avoiding direct impact of airflow, making the airflow distribution more uniform.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An oven air duct with adjustable and uniform air discharge, characterized in that: include: A main body (1) having an open end at one end and a closed end at the other end; a wind chamber (11) communicating with the open end is provided inside the main body (1), and the internal space of the wind chamber (11) gradually decreases from the open end to the closed end; One side of the main body (1) is set as an air outlet side, and the air outlet side also serves as a side wall of the air chamber (11). A plurality of first air outlet holes (12) are opened on the air outlet side, and the first air outlet holes (12) are distributed along the length direction of the main body (1).

2. The oven air duct with adjustable uniform air flow according to claim 1, characterized in that: An adjustment plate (2) is provided inside the main body (1), and the adjustment plate (2) is provided along the length direction of the main body (1). One end of the adjustment plate (2) is hinged to the main body (1), and the other end is movably provided. The space between the adjustment plate (2) and the air outlet side is an air chamber (11). The main pipe (1) is also provided with an adjustment component (3), which is connected to the adjustment plate (2) and is used to control the inclination of the adjustment plate (2).

3. The oven air duct with adjustable uniform air flow according to claim 2, characterized in that: The regulating plate (2) comprises a main plate (21) and two wing plates (22), wherein the main plate (21) and the two wing plates (22) are arranged in a C-shape; the two wing plates (22) are both in contact with the inner wall of the main body (1), and the side wall of the main body (1) in contact with the wing plates (22) is arranged to be a plane.

4. The oven air duct with adjustable uniform air flow according to claim 2, characterized in that: The adjustment assembly (3) comprises a threaded rod (31), one end of which is hinged to the adjustment plate (2), and the other end of which passes through the main body (1) and extends to the outside of the main body (1); an adjustment nut (32) is rotatably connected to the main body (1), and the adjustment nut (32) is threadably engaged with the threaded rod (31).

5. The oven air duct with adjustable uniform air flow according to claim 1, characterized in that: The invention also comprises a secondary pipe body (4) located on one side of the main pipe body (1), wherein the interior of the secondary pipe body (4) is connected to the main pipe body (1) via a first air outlet hole (12); a second air outlet hole (41) is also provided on the secondary pipe body (4), and the directions of the first air outlet hole (12) and the second air outlet hole (41) intersect with each other.

6. The oven air duct with adjustable uniform air flow according to claim 5, characterized in that: An air guide plate (5) is further provided inside the auxiliary tube body (4), and the air guide plate (5) is located between the first air outlet (12) and the second air outlet (41). One side of the air guide plate (5) is fixedly connected to the auxiliary tube body (4), and a gap is left between the other side and the auxiliary tube body (4).

7. The oven air duct with adjustable uniform air flow according to claim 6, characterized in that: The air guide plate (5) comprises a first support plate (51) and a second support plate (52), wherein the first support plate (51) and the second support plate (52) are arranged in an L-shape, the first support plate (51) is fixedly connected to the auxiliary pipe body (4) and is arranged opposite to the second air outlet hole (41), and the second support plate (52) is arranged opposite to the inner wall of the auxiliary pipe body (4) with a gap therebetween.

8. The oven air duct with adjustable uniform air flow according to claim 5, characterized in that: Two auxiliary pipe bodies (4) are provided and symmetrically distributed on both sides of the main pipe body (1).

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