Sealing adjusting air door for burner of heating furnace

Abstract

The utility model belongs to the field of combustor ventilation, and provides a sealing adjusting air door for a heating furnace combustor, which comprises an air door frame, rotating shafts, a valve plate and an adjusting mechanism, a plurality of groups of rotating shafts are linearly and rotatably arranged in the air door frame at equal intervals, and the outer sides of the plurality of groups of rotating shafts are connected with the valve plate. One end of each rotating shaft extends to the outer side of the air door frame and is provided with an adjusting mechanism; the adjusting mechanism is provided with an electric driving part and a manual driving part; according to the utility model, the plurality of valve plates which rotate synchronously are arranged in the mounting frame through the adjusting mechanism, and the adjusting mechanism can synchronously adjust the angles of the plurality of valve plates, so that the amount of air entering the air duct of the combustor is accurately controlled, and the combustion requirements under different working conditions are met; the electric driving part and the manual driving part are arranged to conduct dual control on the adjusting mechanism, when one driving part breaks down, the other driving part can still work normally, and it is ensured that the normal adjusting function of the air door is not affected.

Description

Technical Field

[0001] This utility model belongs to the field of burner ventilation, specifically a sealing and regulating damper for a heating furnace burner. Background Technology

[0002] A heating furnace burner is a general term for a device that sprays fuel and air in a certain way to mix and burn. It is an important device that converts substances into heat energy through the chemical reaction of combustion. The damper is an important component of the burner and is usually located at the inlet of the furnace. By adjusting the opening degree of the damper, the amount of air entering the furnace can be controlled to ensure that the fuel can be fully burned.

[0003] A search revealed a simplified damper adjustment assembly and burner in Chinese patent publication CN219300792U, comprising a damper body, a damper shaft, a damper plate, a dial, and a handle. The dial is mounted on the damper body, and the damper shaft passes through the damper body and the dial. One end of the damper shaft is rotatably connected to the dial and has the handle attached thereto. The damper plate is mounted on the damper shaft within the damper body. Rotation of the handle causes the damper plate to rotate, thereby adjusting the damper size.

[0004] However, the aforementioned damper uses a separate damper plate to adjust the air intake, which may result in a relatively limited adjustment range, making it impossible to achieve precise adjustment and resulting in poor flexibility and accuracy.

[0005] To address this issue, those skilled in the art have proposed a sealing regulating damper for a heating furnace burner to solve the problems raised in the background art. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a sealing regulating damper for a heating furnace burner, thereby solving the limitations of single damper adjustment.

[0007] A sealing regulating damper for a heating furnace burner includes a damper frame, a rotating shaft, a valve plate, and an adjusting mechanism. The damper frame is disposed within the air duct of the heating furnace burner. Multiple sets of rotating shafts are linearly and equidistantly arranged within the damper frame. A valve plate for sealing the damper frame is connected to the outer side of the multiple sets of rotating shafts. One end of the multiple sets of rotating shafts extends to the outer side of the damper frame and is provided with an adjusting mechanism for adjusting the air intake of the damper frame. The adjusting mechanism has an electric drive component and a manual drive component.

[0008] Preferably, the adjusting mechanism includes a toothed plate, gears, a limiting member, a threaded rod, and a threaded sleeve. The toothed plate is slidably connected to the middle of the outer side of the damper frame through the limiting member. Multiple sets of gears are meshed on the toothed plate, and the multiple sets of gears are respectively installed at one end of multiple sets of rotating shafts. Two sets of ear plates are symmetrically connected to the bottom of the outer side of the damper frame. The threaded rod is rotatably disposed between the two sets of ear plates. A threaded sleeve is threadedly connected to the threaded rod, and the threaded sleeve is installed at the bottom of the toothed plate.

[0009] Preferably, the limiting component includes a guide post and a slider. A strip groove is provided in the middle of the outer side of the damper frame. A guide post is horizontally arranged in the strip groove. Two sets of sliders are slidably connected to the guide post. Both sets of sliders are connected to the toothed plate.

[0010] Preferably, the electric drive unit includes a servo motor, which is mounted on the outside of the corresponding ear plate, and its output end passes through the ear plate and is connected to one end of the threaded rod.

[0011] Preferably, the manual drive component includes an operating shaft, a main bevel gear, a driven bevel gear, and a handle. A protective cover for covering the adjustment mechanism is provided on the outer side of the damper frame. The operating shaft is rotatably passed through one end of the protective cover. A handle is connected to one end of the operating shaft, and the main bevel gear is connected to the other end of the operating shaft. The main bevel gear is engaged with the driven bevel gear, which is installed on the end of the threaded rod away from the servo motor.

[0012] Preferably, a connecting sleeve is provided on the outside of the protective cover, located outside the operating shaft, and a cover for concealing the handle is threaded onto the connecting sleeve.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model has multiple synchronously rotating valve plates set in the mounting frame through the adjustment mechanism. The multi-valve plate design allows for more precise adjustment of the opening degree of the damper. By using the cooperation of toothed plates, gears, limiting parts, threaded rods and threaded sleeves, the angles of multiple valve plates can be adjusted synchronously, thereby accurately controlling the amount of air entering the burner duct, thus meeting the combustion requirements under different operating conditions.

[0015] 2. This utility model provides dual control of the adjustment mechanism by setting up both an electric drive component and a manual drive component. The electric drive component and the manual drive component constitute a redundant system. When one drive component fails, the other drive component can still work normally, ensuring that the normal adjustment function of the damper is not affected. In addition, if the electric drive component is damaged, the operator can quickly switch to the manual drive component to continue adjusting the damper and avoid production interruption. Attached Figure Description

[0016] Figure 1 This is the main view of the present invention.

[0017] Figure 2This is a side view of the present invention.

[0018] Figure 3 This is a structural diagram of the protective cover of this utility model without structural details;

[0019] Figure 4 This is a partial structural diagram of the adjustment mechanism of this utility model;

[0020] Figure 5 This utility model Figure 4 A partial reverse structure diagram.

[0021] In the picture:

[0022] 1. Damper frame; 2. Rotating shaft; 3. Valve plate; 4. Gear plate; 5. Gear; 6. Threaded rod; 7. Threaded sleeve; 8. Guide post; 9. Slider; 10. Strip groove; 11. Ear plate; 12. Servo motor; 13. Operating shaft; 14. Main bevel gear; 15. Slave bevel gear; 16. Handle; 17. Protective cover; 18. Connecting sleeve; 19. Cover. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] As attached Figure 1 To be continued Figure 5 As shown:

[0025] This utility model provides a sealing and regulating damper for a heating furnace burner, including a damper frame 1, a rotating shaft 2, a valve plate 3, and an adjusting mechanism. The damper frame 1 is disposed in the air duct of the heating furnace burner. Multiple sets of rotating shafts 2 are linearly and equidistantly arranged inside the damper frame 1. The valve plate 3 for sealing the damper frame 1 is connected to the outside of the multiple sets of rotating shafts 2. One end of the multiple sets of rotating shafts 2 extends to the outside of the damper frame 1 and is provided with an adjusting mechanism for adjusting the air intake of the damper frame 1. The adjusting mechanism has an electric drive component and a manual drive component.

[0026] Among them, multiple rotating shafts 2 are driven to rotate synchronously by the adjustment mechanism, and multiple valve plates 3 are opened and closed simultaneously during the rotation process, which can meet the need to adjust the air flow rate inside the furnace when the damper does not need to be fully opened.

[0027] refer to Figure 3The adjusting mechanism includes a toothed plate 4, a gear 5, a limiting member, a threaded rod 6, and a threaded sleeve 7. The toothed plate 4 is slidably connected to the middle of the outer side of the damper frame 1 through the limiting member. Multiple sets of gears 5 are meshed on the toothed plate 4, and the multiple sets of gears 5 are respectively installed at one end of multiple sets of rotating shafts 2. Two sets of ear plates 11 are symmetrically connected to the bottom of the outer side of the damper frame 1. The threaded rod 6 is rotatably disposed between the two sets of ear plates 11. A threaded sleeve 7 is threadedly connected to the threaded rod 6, and the threaded sleeve 7 is installed at the bottom of the toothed plate 4.

[0028] In this process, the threaded rod 6 is driven to rotate, and during the rotation of the threaded rod 6, the threaded sleeve 7 drives the toothed plate 4 to move horizontally under the limit of the limiting component. During the movement, the toothed plate 4 meshes with the gear 5, thereby driving the rotating shaft 2 to rotate.

[0029] refer to Figure 3 and Figure 4 The limiting component includes a guide post 8 and a slider 9. A strip groove 10 is provided in the middle of the outer side of the damper frame 1. A guide post 8 is horizontally arranged in the strip groove 10. Two sets of sliders 9 are slidably connected on the guide post 8. Both sets of sliders 9 are connected to the toothed plate 4.

[0030] When the toothed plate 4 is subjected to a moving driving force, it will drive the slider 9 to move along the guide post 8, thereby limiting the movement trajectory of the toothed plate 4 and ensuring its stability when it is moved by external force.

[0031] refer to Figure 4 The electric drive unit includes a servo motor 12, which is mounted on the outside of the corresponding ear plate 11, and its output end passes through the ear plate 11 and is connected to one end of the threaded rod 6.

[0032] The adjustment mechanism is electrically controlled by driving the threaded rod 6 to rotate via the servo motor 12.

[0033] refer to Figure 4 and Figure 5 The manual drive unit includes an operating shaft 13, a main bevel gear 14, a driven bevel gear 15, and a handle 16. A protective cover 17 for covering the adjustment mechanism is provided on the outside of the damper frame 1. The operating shaft 13 is rotatably passed through one end of the protective cover 17. The handle 16 is connected to one end of the operating shaft 13, and the main bevel gear 14 is connected to the other end of the operating shaft 13. The main bevel gear 14 is engaged with the driven bevel gear 15. The driven bevel gear 15 is installed on the end of the threaded rod 6 away from the servo motor 12.

[0034] Specifically, the handle 16 drives the operating shaft 13 to rotate, and the operating shaft 13 drives the main bevel gear 14 to rotate during the rotation. The main bevel gear 14 meshes with the driven bevel gear 15, and the threaded rod 6 rotates under the action of the meshing force.

[0035] refer to Figure 2 and Figure 5The outer side of the protective cover 17 is provided with a connecting sleeve 18 located outside the operating shaft 13, and a cover 19 for concealing the handle 16 is threaded onto the connecting sleeve 18.

[0036] The handle 16 is hidden by a cover 19 to prevent accidental touch during electronic control. When manual control is required, the cover 19 can be unscrewed for operation.

[0037] Working principle: When it is necessary to adjust the air intake of the air duct, the servo motor 12 drives the threaded rod 6 to rotate. During the rotation of the threaded rod 6, the threaded sleeve 7 drives the toothed plate 4 to move horizontally under the limit of the limiting component. During the movement, the toothed plate 4 meshes with the gear 5, thereby driving multiple rotating shafts 2 to rotate synchronously. This allows for the synchronous adjustment of the angle of multiple valve plates 3, thus precisely controlling the amount of air entering the burner air duct to meet the combustion requirements under different working conditions. When the servo motor 12 malfunctions, the cover 19 is unscrewed to expose the handle 16. Rotating the handle 16 drives the operating shaft 13 to rotate. During the rotation of the operating shaft 13, the main bevel gear 14 rotates. The main bevel gear 14 meshes with the driven bevel gear 15, and under the action of the meshing force, the threaded rod 6 rotates. This allows the operator to quickly switch to the manual drive in the event of damage to the electric drive component and continue to adjust the damper, avoiding production interruption.

[0038] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A sealing regulating damper for a heating furnace burner, characterized in that, The device includes a damper frame (1), a rotating shaft (2), a valve plate (3), and an adjustment mechanism. The damper frame (1) is located in the air duct of the heater burner. Multiple rotating shafts (2) are arranged linearly and equidistantly inside the damper frame (1). A valve plate (3) for blocking the damper frame (1) is connected to the outside of the multiple rotating shafts (2). One end of the multiple rotating shafts (2) extends to the outside of the damper frame (1) and is provided with an adjustment mechanism for adjusting the air intake of the damper frame (1). The adjustment mechanism has an electric drive component and a manual drive component.

2. The sealing and regulating damper for a heating furnace burner as described in claim 1, characterized in that: The adjustment mechanism includes a toothed plate (4), a gear (5), a limiting member, a threaded rod (6) and a threaded sleeve (7). The toothed plate (4) is slidably connected to the middle of the outer side of the damper frame (1) through the limiting member. Multiple sets of gears (5) are meshed on the toothed plate (4), and the multiple sets of gears (5) are respectively installed at one end of multiple sets of rotating shafts (2). Two sets of ear plates (11) are symmetrically connected to the bottom of the outer side of the damper frame (1). The threaded rod (6) is rotatably set between the two sets of ear plates (11). A threaded sleeve (7) is threadedly connected to the threaded rod (6). The threaded sleeve (7) is installed at the bottom of the toothed plate (4).

3. The sealing regulating damper for a heating furnace burner as described in claim 2, characterized in that: The limiting component includes a guide post (8) and a slider (9). A strip groove (10) is provided in the middle of the outer side of the damper frame (1). A guide post (8) is horizontally arranged in the strip groove (10). Two sets of sliders (9) are slidably connected on the guide post (8). Both sets of sliders (9) are connected to the toothed plate (4).

4. The sealing regulating damper for a heating furnace burner as described in claim 2, characterized in that: The electric drive unit includes a servo motor (12), which is mounted on the outside of the corresponding ear plate (11), and its output end passes through the ear plate (11) and is connected to one end of the threaded rod (6).

5. A sealing regulating damper for a heating furnace burner as described in claim 4, characterized in that: The manual drive unit includes an operating shaft (13), a main bevel gear (14), a driven bevel gear (15), and a handle (16). A protective cover (17) for covering the adjustment mechanism is provided on the outside of the damper frame (1). The operating shaft (13) is rotatably passed through one end of the protective cover (17). The handle (16) is connected to one end of the operating shaft (13), and the main bevel gear (14) is connected to the other end of the operating shaft (13). The driven bevel gear (15) is meshed with the main bevel gear (14). The driven bevel gear (15) is installed on the end of the threaded rod (6) away from the servo motor (12).

6. The sealing regulating damper for a heating furnace burner as described in claim 5, characterized in that: A connecting sleeve (18) located outside the operating shaft (13) is provided on the outer side of the protective cover (17), and a cover (19) for concealing the handle (16) is threaded onto the connecting sleeve (18).

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