High-efficiency energy-saving tunnel furnace for air conditioner pipe processing

Abstract

The utility model provides a kind of for air conditioner pipe processing's high -efficient energy -conserving tunnel furnace, it is related to air conditioner pipe processing technical field, and it includes: tunnel furnace body, preheating chamber and multiple heating chambers are arranged in the tunnel furnace body, air outlet cover is arranged in the preheating chamber inside, the air outlet cover front and back side is connected with air guide pipe by air inlet, the inside of multiple heating chambers is fixed with heat preservation partition equally, the side surface of heat preservation partition is all distributed with exhaust hood, motor is connected with rotating column shaft by the side end of exhaust hood, arc exhaust screen surface is provided at the lower end of exhaust hood, heating cavity is communicated with in the upper end of exhaust hood by air supply pipe, circulation fan is provided at the rear side cavity of heating cavity.The utility model solves the problem that the hot air circulation flow direction in the existing tunnel furnace is relatively fixed, in order to ensure that heat treatment is sufficient, heat treatment duration is prolonged, which leads to the problem of energy consumption increase.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning pipe processing technology, specifically to a high-efficiency and energy-saving tunnel furnace for air conditioning pipe processing. Background Technology

[0002] In the production of copper and aluminum pipes for air conditioning refrigeration, tunnel furnaces are required for heat treatment processes such as annealing, drying, and coating curing. Tunnel furnaces are tunnel-type mechanical devices that achieve continuous baking through heat conduction, convection, and radiation, primarily used in the food industry and ecological remediation. Their furnace length is typically 6-80 meters, with an internal conveying system working in conjunction with electric heating elements or burners. They are characterized by high production efficiency and stable baking quality. However, research reveals that existing tunnel furnaces have a relatively fixed hot air circulation direction, requiring extended heat treatment times to ensure thorough heat treatment, leading to increased energy consumption. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a high-efficiency and energy-saving tunnel furnace for processing air conditioning pipes is provided to solve the problem that the hot air circulation direction in existing tunnel furnaces is relatively fixed, and the heat treatment time needs to be extended to ensure sufficient heat treatment, resulting in increased energy consumption.

[0004] To achieve the above objectives, a high-efficiency and energy-saving tunnel furnace for processing air conditioning pipes is provided, comprising: a tunnel furnace body, wherein a preheating chamber and multiple heating chambers are provided within the tunnel furnace body. The preheating chamber is equipped with an air outlet hood. The front and rear sides of the air outlet hood are connected to air guide pipes through air inlets. The multi-section heating chamber is fixed with insulation partitions at equal intervals on its inner side. Exhaust hoods are distributed on the sides of the insulation partitions. A motor is connected to the side of the exhaust hood through a rotating column shaft. An arc-shaped exhaust mesh is provided at the lower end of the exhaust hood. The upper end of the exhaust hood is connected to a heating chamber through an air supply pipe. A circulating fan is provided at the rear opening of the heating chamber.

[0005] Furthermore, a horizontal conveying mechanism is installed inside the tunnel furnace body, and the horizontal conveying mechanism runs through the preheating chamber and the multi-section heating chamber area.

[0006] Furthermore, a heating control cabinet is provided on the front surface of the tunnel furnace body, and an exhaust vent is provided on the side wall of the tunnel furnace body, with baffles provided between the exhaust vents.

[0007] Furthermore, the front and rear ends of the tunnel furnace body are connected to the exhaust pipe and the air guide pipe through exhaust vents, and the other end of the exhaust pipe is connected to a circulating fan.

[0008] Furthermore, a circulating fan is installed at the rear end of the multi-section heating chamber, and an air outlet is provided on the upper surface of the preheating chamber.

[0009] Furthermore, the upper surface of the exhaust hood is connected to the rotating column via a shaft connecting block, and the rotating column is sequentially connected to the exhaust hoods on adjacent sides.

[0010] Furthermore, an air guide plate is fixed to the inner wall of the exhaust hood; and the air guide plate is symmetrically attached to the arc-shaped exhaust mesh surface.

[0011] Furthermore, a heater is installed on the inner wall of the heating cavity, and a motor is installed on the outer right wall of the multi-section heating chamber.

[0012] The beneficial effects of this utility model are as follows: The high-efficiency and energy-saving tunnel furnace for processing air conditioning pipes utilizes multiple exhaust hoods connected by a partition shaft within a multi-section heating chamber. Driven by a motor, the exhaust hoods reciprocate within a certain angle, directly discharging the circulating hot air onto the surface of the air conditioning pipes. This ensures that both the middle and outer sections of the air conditioning pipes are in contact with the hot air, creating a tunnel furnace with adjustable hot air direction. This facilitates sufficient contact between the hot air and multiple air conditioning pipes, preventing uneven heating and reducing the heat treatment time of the air conditioning pipes. Furthermore, the hot air from the front and rear chambers of the multi-section heating chamber is transported to the preheating chamber via a guide pipe, facilitating the recovery and reuse of hot air that easily escapes from both ends of the multi-section heating chamber, accelerating the heat treatment speed of the tunnel furnace, and significantly improving its energy efficiency. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of a high-efficiency energy-saving tunnel furnace for processing air conditioning pipes according to an embodiment of the present invention.

[0014] Figure 2 This is a front view cross-sectional structural diagram of a high-efficiency energy-saving tunnel furnace for processing air conditioning pipes according to an embodiment of the present invention.

[0015] Figure 3 This is a partial side cross-sectional view of the multi-segment heating chamber according to an embodiment of the present invention.

[0016] Figure 4 This is a side view cross-sectional structural diagram of the exhaust hood according to an embodiment of the present utility model.

[0017] In the diagram: 1. Tunnel furnace body; 11. Heating control cabinet; 12. Air duct; 13. Horizontal conveying mechanism; 14. Air outlet hood; 15. Air inlet; 16. Exhaust vent; 17. Baffle; 2. Preheating chamber; 21. Air outlet; 3. Multi-section heating chamber; 31. Heating cavity; 32. Heater; 33. Insulation partition; 4. Circulating fan; 41. Exhaust duct; 5. Exhaust hood; 51. Air supply duct; 52. Motor; 53. Rotating column; 54. Arc-shaped exhaust vent; 55. Shaft connecting block; 56. Air guide plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please refer to Figures 1 to 4 As shown, this utility model provides a high-efficiency and energy-saving tunnel furnace for processing air conditioning pipes, including: a tunnel furnace body 1, and a preheating chamber 2 and multiple heating chambers 3 arranged inside the tunnel furnace body 1. An air outlet hood 14 is provided inside the preheating chamber 2. The front and rear sides of the air outlet hood 14 are connected to air guide pipes 12 through air inlets 15. Insulation partitions 33 are fixed at equal intervals inside the multi-section heating chamber 3. Exhaust hoods 5 are distributed on the sides of the insulation partitions 33. A motor 52 is connected to the side of the exhaust hood 5 through a rotating column 53. An arc-shaped exhaust mesh 54 is provided at the lower end of the exhaust hood 5. The upper end of the exhaust hood 5 is connected to the heating chamber 31 through an air supply pipe 51. A circulating fan 4 is provided at the rear opening of the heating chamber 31.

[0020] First, the air conditioning pipes requiring heat treatment are placed on the horizontal conveying mechanism 13 of the tunnel furnace body 1. The heating temperature of the heaters 32 in the multi-section heating chamber 3 is set. The tunnel furnace is started, and the horizontal conveying mechanism 13 transports the air conditioning pipes to the preheating chamber 2. The air outlet hoods 14 in the preheating chamber 2 discharge the heated air from the front and rear ends of the multi-section heating chamber 3 to the surface of the air conditioning pipes, thus preheating the pipes. Then, the pipes enter the multi-section heating chamber 3 for heating. The motor 52 drives the multiple air outlet hoods 14 in the multi-section heating chamber 3 to swing back and forth, so that the air outlet hoods 14 discharge the hot air directly onto the surface of the air conditioning pipes in an oscillating manner. This ensures that the middle and side sections of the air conditioning pipes can fully contact the hot air, ensuring that the air conditioning pipes are heated evenly. After multi-end heating treatment, the pipes are finally removed from the right end of the tunnel furnace body 1 for the next processing step.

[0021] In this embodiment, a horizontal conveying mechanism 13 is installed inside the tunnel furnace body 1, and the horizontal conveying mechanism 13 passes through the preheating chamber 2 and the multi-section heating chamber 3. A heating control cabinet 11 is provided on the front surface of the tunnel furnace body 1, and exhaust vents 16 are opened on the side wall of the tunnel furnace body 1, with baffles 17 arranged between the exhaust vents 16. The front and rear ends of the tunnel furnace body 1 are connected to the exhaust pipe 41 and the air guide pipe 12 through the exhaust vents 16, and the other end of the exhaust pipe 41 is connected to a circulating fan 4.

[0022] In a preferred embodiment, the horizontal conveying mechanism 13 is used to transport air pipes from the preheating chamber 2 to the multi-stage heating chamber 3, and then remove them from the multi-stage heating chamber 3. The heating control cabinet 11 facilitates the control of the operation of electrical equipment involved in the tunnel furnace heating process. Both the baffle 17 and the insulation partition 33 serve to block the wind, allowing each chamber to form an independent circulating airflow direction. The exhaust vent 16 facilitates the extraction of hot air from the current chamber through the circulating fan 4 (which has dehumidification and purification functions to ensure the cleanliness of the rotating air) to the heating chamber 31, where it is heated to a suitable temperature before being discharged through the exhaust hood 5, thus realizing the circulation process of hot air and reducing the loss of hot air through direct exhaust. The exhaust vents 16 at the front and rear of the multi-stage heating chamber 3 transport the hot air inside the chamber to the preheating chamber 2, avoiding the direct loss of hot air at the front and rear of the multi-stage heating chamber 3 and causing waste. The hot air at the front and rear of the multi-stage heating chamber 3 is drawn by the circulating fan 4 to heat the external air before being discharged into the chamber.

[0023] In this embodiment, a circulating fan 4 is installed at the rear end of the multi-section heating chamber 3, and an air outlet 21 is opened on the upper surface of the preheating chamber 2. The upper surface of the exhaust hood 5 is connected to the rotating column 53 through a shaft connecting block 55, and the rotating column 53 is sequentially connected to the exhaust hoods 5 on both adjacent sides. A guide plate 56 is fixed to the inner wall of the exhaust hood 5; and the guide plate 56 is symmetrically attached to the arc-shaped exhaust mesh surface 54. A heater 32 is installed on the inner wall of the heating cavity 31, and a motor 52 is installed on the outer right wall of the multi-section heating chamber 3.

[0024] In a preferred embodiment, the circulating fan 4 and the heater 32 are respectively installed in each chamber of the multi-section heating chamber 3, which can realize individual temperature control of the multi-section heating chamber 3 and improve the heating effect of the tunnel furnace. The motor 52 is connected to multiple exhaust hoods 5 through multiple rotating columns 53, thereby driving the multiple exhaust hoods 5 to reciprocate at a certain angle, and reciprocatingly discharging hot air within a certain range to achieve a full air supply effect. This ensures that the air conditioning pipes in the middle section and the outer section are in contact with the hot air, which facilitates the full contact of the hot air with the multiple air conditioning pipes, avoids uneven heating in the tunnel furnace, and reduces the heat treatment time of the air conditioning pipes.

[0025] This utility model of a high-efficiency energy-saving tunnel furnace for air conditioning pipe processing effectively solves the problem that existing tunnel furnaces have a relatively fixed hot air circulation direction, which requires a longer heat treatment time to ensure sufficient heat treatment, leading to increased energy consumption. It achieves a tunnel furnace with adjustable hot air direction, facilitating sufficient contact between the hot air and multiple air conditioning pipes, avoiding uneven heating in certain areas, and reducing the heat treatment time for the air conditioning pipes. It also facilitates the recycling and reuse of hot air that easily escapes from both ends of the multi-section heating chamber, accelerating the heat treatment speed of the tunnel furnace and significantly improving its energy efficiency. This invention is suitable for high-efficiency energy-saving tunnel furnaces used in air conditioning pipe processing.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency energy-saving tunnel furnace for processing air conditioning pipes, comprising: The tunnel furnace body (1) is provided with a preheating chamber (2) and a multi-stage heating chamber (3), characterized in that: The preheating chamber (2) is provided with an air outlet hood (14) inside. The air outlet hood (14) is connected to the front and rear sides by an air inlet (15) via a guide pipe (12). The multi-section heating chamber (3) is fixed with heat insulation partitions (33) at equal intervals inside. The heat insulation partitions (33) are all distributed with exhaust hoods (5) on their sides. The exhaust hoods (5) are connected to a motor (52) on their side via a rotating column (53). The exhaust hoods (5) are provided with an arc-shaped exhaust mesh (54) at their lower end. The exhaust hoods (5) are connected to a heating chamber (31) at their upper end via an air supply pipe (51). A circulating fan (4) is provided at the rear opening of the heating chamber (31).

2. The high-efficiency energy-saving tunnel furnace for processing air conditioning pipes according to claim 1, characterized in that, A horizontal conveying mechanism (13) is installed inside the tunnel furnace body (1), and the horizontal conveying mechanism (13) passes through the preheating chamber (2) and the multi-section heating chamber (3) area.

3. The high-efficiency energy-saving tunnel furnace for air conditioning pipe processing according to claim 2, characterized in that, A heating control cabinet (11) is provided on the front surface of the tunnel furnace body (1), and an exhaust vent (16) is provided on the side wall of the tunnel furnace body (1). A baffle (17) is provided between the exhaust vents (16).

4. A high-efficiency energy-saving tunnel furnace for processing air conditioning pipes according to claim 3, characterized in that, The front and rear ends of the tunnel furnace body (1) are connected to the exhaust pipe (41) and the air guide pipe (12) through the exhaust mesh (16), and the other end of the exhaust pipe (41) is connected to the circulating fan (4).

5. A high-efficiency energy-saving tunnel furnace for processing air conditioning pipes according to claim 1, characterized in that, A circulating fan (4) is installed at the rear end of the multi-section heating chamber (3), and an air outlet (21) is opened on the upper surface of the preheating chamber (2).

6. A high-efficiency energy-saving tunnel furnace for processing air conditioning pipes according to claim 1, characterized in that, The upper surface of the exhaust hood (5) is connected to the rotating column (53) via a shaft connecting block (55), and the rotating column (53) is connected to the exhaust hoods (5) on the adjacent sides in sequence.

7. A high-efficiency energy-saving tunnel furnace for processing air conditioning pipes according to claim 1, characterized in that, The inner wall of the exhaust hood (5) is fixed with a guide plate (56); and the guide plate (56) is symmetrically attached to the arc-shaped exhaust mesh surface (54).

8. A high-efficiency energy-saving tunnel furnace for processing air conditioning pipes according to claim 1, characterized in that, A heater (32) is installed on the inner wall of the heating cavity (31), and a motor (52) is installed on the outer right side of the multi-section heating chamber (3).

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