Hot air exchange energy-saving device
By designing a hot air exchange energy-saving device, using the oven waste heat to exchange heat with the hot air tank, and outputting wind power to the drying furnace through the fan, the problem of large energy consumption of traditional copper wire drying is solved, and more efficient energy-saving effects are achieved.
Patent Information
- Application Number
- CN202421733545.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-20
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-20
AI Technical Summary
During the copper wire drying process, the traditional combination of heaters and ovens consumes a lot of energy, resulting in huge electricity consumption.
A hot air exchange and energy-saving device is designed. By using the waste heat generated by the oven to exchange heat with the hot air tank, the fan outputs wind power through the heat exchange channel, carrying the heat to the drying furnace, and drying the copper wire.
The device makes full use of waste heat and only requires a fan to form hot air, which is more energy-saving than the traditional method, and further improves the heat exchange efficiency through the design of the heat exchange channel.
Smart Images
Figure CN222912265U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of enameled wire production, and particularly relates to a hot air exchange energy-saving device. Background Art
[0002] An enameled wire mainly consists of two parts, a conductor (usually made of copper wire) and an insulating layer. When processing the enameled wire, an insulating paint is coated on the surface of the copper wire and dried through an oven to form an insulating layer covering the outer surface of the copper wire. During the production process of the copper wire, it will undergo processing such as stretching and extrusion. Since these processes may cause deformation of metal grains and stress concentration, annealing treatment is required to improve the performance and service life of the copper wire. After the annealing treatment, the copper wire is washed and dried, and then the coating work of the insulating paint can be carried out.
[0003] Among them, when drying the copper wire, a drying device is usually used. The drying device dries the copper wire by introducing hot air, mainly including a fan, an electric heating tube, a heater, and a drying box. Especially, the energy consumption of the electric heating tube and the heater is extremely high, resulting in a large amount of electricity consumption for drying the copper wire. Utility Model Content
[0004] The present application provides a hot air exchange energy-saving device to reduce the power consumption when drying the copper wire.
[0005] In a first aspect, a hot air exchange energy-saving device provided by the present application adopts the following technical solution:
[0006] A hot air exchange energy-saving device includes an annealing furnace, a cleaning part, and a drying part arranged in sequence along the moving direction of the copper wire. The drying part includes a drying furnace, a baking furnace, a hot air box, and a fan. The baking furnace is communicated with the hot air box and is used to introduce waste gas with heat into the hot air box to transfer heat to the hot air box. A heat exchange flow channel is opened in the hot air box. The inlet end of the heat exchange flow channel is communicated with the fan, and the outlet end of the heat exchange flow channel is communicated with the drying furnace and is used to blow hot air into the drying furnace.
[0007] By adopting the above technical solution, the waste heat is introduced into the hot air box and exchanges heat with the hot air box. The fan continuously outputs wind power to the hot air box through the heat exchange flow channel to carry out the heat in the hot air box, and then forms hot air and blows it into the drying furnace to dry the copper wire entering the drying furnace. Compared with the combination of using a heater and an oven to dry the copper wire, this method makes full use of the waste heat and only needs to set a fan to form hot air, which is more energy-saving.
[0008] Optionally, the heat exchange flow channel is arranged in an S-shaped trend in the hot air box.
[0009] By adopting the above technical solution, the contact area between the cold air entering the hot air box and the hot air box is increased, and the time required for the air flow to flow out of the hot air box is increased, so that the heat of the hot air box can be carried out more fully.
[0010] Optionally, a heat exchange tube is inserted into the heat exchange flow channel.
[0011] By adopting the above technical solution, the heat exchange tube has a strong heat absorption capacity, further strengthening the heat exchange efficiency between the air flow blown into the hot air box and the hot air box.
[0012] Optionally, one side of the drying furnace close to the annealing furnace is communicated with the heat exchange flow channel, so that the flowing direction of the hot air in the drying furnace is consistent with the moving direction of the copper wire.
[0013] By adopting the above technical solution, the moving direction of the hot air is kept consistent with the moving direction of the copper wire to dry the copper wire.
[0014] Optionally, guide wheel groups are arranged on both sides of the drying furnace for guiding the copper wire.
[0015] By adopting the above technical solution, by arranging the guide wheel groups to guide the copper wire, the copper wire is prevented from shifting during the drying process.
[0016] Optionally, both the annealing furnace and the drying furnace are inclined towards the cleaning part.
[0017] By adopting the above technical solution, due to the inclined setting of the annealing furnace, after the copper wire is annealed and comes out of the annealing furnace, it can more smoothly pass through the cleaning part for cleaning by virtue of the self-gravity of the copper wire. Subsequently, due to the inclined setting of the drying furnace, by virtue of the gravity of the cleaning liquid, part of the cleaning liquid still attached to the copper wire can slide off the copper wire.
[0018] Optionally, the cleaning part includes a cleaning pool and a drainage pipe, and the drainage pipe is communicated with the cleaning pool for continuously introducing cleaning liquid into the cleaning pool.
[0019] By adopting the above technical solution, when the copper wire passes through the cleaning pool for cleaning, the cleanliness of the copper wire surface is guaranteed.
[0020] Optionally, a water return pipe and a water return pool are arranged at the bottom side of the cleaning pool. One end of the water return pipe is communicated with the cleaning pool, and the other end of the water return pipe is communicated with the water return pool for recycling the cleaning liquid.
[0021] By adopting the above technical solution, after the cleaning liquid cleans the copper wire, it will flow out of the cleaning pool, enter the water return pool through the water return pipe, and be further processed, having the effects of saving resources and protecting the environment.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. Waste heat is introduced into the hot air box for heat exchange with the hot air box, and the fan continuously outputs wind power to the hot air box through the heat exchange flow channel to carry out the heat in the hot air box, thereby forming hot air and blowing it into the drying furnace to dry the copper wire entering the drying furnace. Compared with the combination of using a heater and an oven to dry the copper wire, this method makes full use of waste heat and only needs to set up a fan to form hot air, which is more energy-efficient.
[0024] 2. The heat exchange flow channel is arranged in an S-shaped direction in the hot air box to increase the contact area between the cold air entering the hot air box and the hot air box, increase the time required for the air flow to flow out of the hot air box, and be able to carry out the heat of the hot air box more fully. Moreover, a heat exchange pipe is inserted into the heat exchange flow channel to further enhance the heat exchange efficiency between the air flow blown into the hot air box and the hot air box.
[0025] 3. Both the annealing furnace and the drying furnace in the present application are inclined towards the cleaning part. After the copper wire comes out of the annealing furnace after annealing, it can more smoothly pass through the cleaning part for cleaning by virtue of the self-gravity of the copper wire. And by means of the gravity of the cleaning liquid, part of the cleaning liquid still attached to the copper wire can slide off from the copper wire to ensure the drying of the copper wire. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 is the front view of the hot air exchange energy-saving device in the present application;
[0027] Figure 2 is the front view of the cleaning part in the present application;
[0028] Figure 3 is the top view of the hot air box in the present application;
[0029] Figure 4 is the cross-sectional view of the hot air box in the present application.
[0030] In the figure, 1. annealing furnace; 2. cleaning part; 21. cleaning pool; 22. drainage pipe; 23. return water pipe; 24. return water pool; 3. drying part; 31. drying furnace; 32. baking oven; 33. hot air box; 331. heat exchange flow channel; 3311. inlet end; 3312. outlet end; 3313. first air inlet channel; 3314. second air inlet channel; 3315. third air inlet channel; 3316. fourth air inlet channel; 34. fan; 35. heat exchange pipe; 4. guide wheel group; 6. connecting pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0031] The following is combined with the attached Figure 1 - attached Figure 4, a further detailed description of the present application is provided.
[0032] A hot air exchange energy-saving device, referring to Figure 1 and Figure 2 , includes an annealing furnace 1, a cleaning part 2, and a drying part 3 arranged in sequence along the moving direction of the copper wire. The copper wire passes through the annealing furnace 1, the cleaning part 2, and the drying part 3 in sequence, and corresponding annealing, cleaning, and drying treatments are carried out.
[0033] Among them, the annealing furnace 1 is inclined towards the cleaning part 2. When the copper wire finishes annealing and moves towards the cleaning part 2, with the help of the self-gravity of the copper wire, it can enter the cleaning part 2 more smoothly for cleaning work.
[0034] Furthermore, the cleaning part 2 includes a cleaning pool 21 and a drainage pipe 22. The drainage pipe 22 is communicated with the cleaning pool 21 and is used to continuously introduce cleaning liquid into the cleaning pool 21. The copper wire is immersed below the liquid level when passing through the cleaning pool 21 and is cleaned under its own movement. In this embodiment, the cleaning liquid is pure water. In order to further enhance the cleaning effect, in other embodiments, a mixture of pure water and mild soap can also be used, or a soft brush can be set in the cleaning pool 21 to wipe the copper wire during its movement.
[0035] Referring to Figure 1 and Figure 2 , since during the cleaning process of the copper wire, the dirt and oil stains attached to the copper wire will fall off, and the cleaning liquid will become turbid after cleaning the copper wire. In this embodiment, a return water pipe 23 and a return water pool 24 are also provided at the bottom side of the cleaning pool 21. One end of the return water pipe 23 is communicated with the cleaning pool 21, and the other end of the return water pipe 23 is communicated with the return water pool 24. After the cleaning liquid cleans the copper wire, it enters the return water pool 24 through the return water pipe 23 and is then recycled.
[0036] When the cleaning liquid in this embodiment is pure water, the recycled cleaning liquid can be further used for watering flowers and plants or flushing the toilet bowl in the washroom.
[0037] Referring to Figure 1 and Figure 3 , the drying part 3 includes an oven 32 and a hot air box 33. The oven 32 is mainly used for drying the copper wire after coating with insulating paint to produce enameled wire. During the drying process, waste heat (high-temperature exhaust gas) will be generated. Correspondingly, the oven 32 is communicated with the hot air box 33 (a channel is provided in the hot air box 33), and the exhaust gas will be introduced into the hot air box 33 to transfer heat to the hot air box 33. Furthermore, an environmental protection device is also communicated above the hot air box 33 to treat the exhaust gas and then discharge it.
[0038] Further, the drying component 3 further includes a drying furnace 31 and a blower 34. A heat exchange flow channel 331 is formed in the hot air box 33. The inlet end 3331 of the heat exchange flow channel 331 is communicated with the blower 34, and the outlet end 3332 of the heat exchange flow channel 331 is communicated with the drying furnace 31. The blower 34 inputs air flow into the heat exchange flow channel 331 (in this embodiment, the blower 34 with a preferred power of 0.75 KW is used). Heat exchange occurs between the air flow and the hot air box 33, and the waste heat is transferred to absorb the heat in the hot air box 33 to form hot air, which is finally output to the drying furnace 31.
[0039] Further, the heat exchange flow channel 331 is formed in an S shape to enhance the contact area between the air flow blown into the hot air box 33 and the hot air box 33, and increase the time required for the air flow to flow out of the hot air box 33. Specifically, the heat exchange flow channel 331 includes a first air inlet flow channel 3333 (formed in an L shape), a second air inlet flow channel 3334, a third air inlet flow channel 3335, and a fourth air inlet flow channel 3336 that are sequentially communicated. The opening directions of the second air inlet flow channel 3334 and the fourth air inlet flow channel 3336 are the same (the second air inlet flow channel 3334 is arranged in parallel with the fourth air inlet flow channel), so that the air flow flows in an S shape in the hot air box 33.
[0040] Among them, the passing areas of the first air inlet flow channel 3333 and the third air inlet flow channel 3335 are both larger than those of the second air inlet flow channel 3334 and the fourth air inlet flow channel 3336. Correspondingly, a plurality of second air inlet flow channels 3334 and fourth air inlet flow channels 3336 are provided (in the embodiment, both are set to 3). The plurality of second air inlet flow channels 3334 and the plurality of fourth air inlet flow channels 3336 are arranged in one-to-one correspondence to increase the contact area between the air flow and the hot air box 33.
[0041] Further, heat exchange tubes 35 are arranged in the plurality of second air inlet flow channels 3334 and the fourth air inlet flow channels 3336 to enhance the heat exchange efficiency between the air flow blown into the hot air box 33 and the hot air box 33.
[0042] In addition, in other embodiments, the heat exchange flow channel 331 may also include a plurality of air inlet flow channels, which are arranged in sequence and formed in an S shape in the hot air box 33. It should be noted that in this case, the difficulty of installing the heat exchange tubes 35 increases, and the heat exchange tubes 35 need to be made of a pipe material with bending ability (such as a plastic hose), or the heat exchange tubes 35 may not be inserted into the air inlet flow channels.
[0043] Refer to Figure 1, a connecting pipe 6 is arranged between the drying furnace 31 and the hot air box 33 for guiding hot air. One side of the drying furnace 31 close to the annealing furnace 1 is connected to the heat exchange flow channel 331 through the connecting pipe 6, so that the flowing direction of the hot air in the drying furnace 31 is consistent with the moving direction of the copper wire. When the hot air enters the drying furnace 31, it can assist the movement of the copper wire.
[0044] The drying furnace 31 is inclined towards the cleaning part 2. When the copper wire enters the drying furnace 31 from the cleaning tank 21, due to the gravity of the cleaning liquid, the cleaning liquid still attached to the copper wire can slide off the copper wire, ensuring the drying effect of the hot air on the drying furnace 31.
[0045] In addition, guide wheel sets 4 are arranged on both sides of the drying furnace 31 for guiding the copper wire to prevent the copper wire from shifting during the drying process.
[0046] The implementation principle of the embodiment of this application is as follows: In this application, by using the waste heat of the baking furnace 32, the waste heat pipe is inserted into the hot air box 33 for heat exchange with the hot air box 33, and the fan 34 continuously outputs wind power to the hot air box 33 to carry out the heat in the hot air box 33, forming hot air and blowing it into the drying furnace 31 to dry the copper wire entering the drying furnace 31. Compared with the combination of using a heater and an oven to dry the copper wire, this method makes full use of waste heat and only needs to set the fan 34 to form hot air, which is more energy-saving.
[0047] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are represented by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.
Claims
1. A hot air exchange energy-saving device, comprising an annealing furnace (1), a cleaning unit (2) and a drying unit (3) arranged in sequence along the moving direction of the copper wire, characterized in that: The drying element (3) comprises a drying furnace (31), a baking oven (32), a hot air box (33) and a fan (34); the baking oven (32) is in communication with the hot air box (33) and is used to pass waste gas with heat into the hot air box (33) and transfer waste heat to the hot air box (33); A heat exchange channel (331) is provided in the hot air box (33); an inlet end (3331) of the heat exchange channel (331) is connected to the fan (34); and an outlet end (3332) of the heat exchange channel (331) is connected to the drying furnace (31), for blowing hot air into the drying furnace (31).
2. A hot air exchange energy-saving device according to claim 1, characterized in that: The heat exchange channel (331) is arranged in an S-shaped direction and is opened in the hot air box (33).
3. A hot air exchange energy-saving device according to claim 2, characterized in that: A heat exchange pipe (35) is inserted into the heat exchange channel (331).
4. A hot air exchange energy-saving device according to claim 3, characterized in that: The side of the drying furnace (31) close to the annealing furnace (1) is connected to the heat exchange channel (331), so that the flow direction of the hot air in the drying furnace (31) is consistent with the moving direction of the copper wire.
5. A hot air exchange energy-saving device according to any one of claims 1 to 4, characterized in that: Guide wheel groups (4) are provided on both sides of the drying furnace (31) for guiding the copper wire.
6. A hot air exchange energy-saving device according to claim 1, characterized in that: The annealing furnace (1) and the drying furnace (31) are both arranged to be inclined towards the cleaning piece (2).
7. A hot air exchange energy-saving device according to claim 1, characterized in that: The cleaning element (2) comprises a cleaning pool (21) and a drainage pipe (22); the drainage pipe (22) is in communication with the cleaning pool (21) and is used for continuously passing cleaning liquid into the cleaning pool (21).
8. A hot air exchange energy-saving device according to claim 7, characterized in that: A return pipe (23) and a return pool (24) are provided at the bottom side of the cleaning pool (21); one end of the return pipe (23) is connected to the cleaning pool (21), and the other end of the return pipe (23) is connected to the return pool (24), for recovering cleaning liquid.