Energy-saving heat treatment equipment in the processing of metal parts for new energy vehicles

Abstract

This invention belongs to the technical field of heat treatment equipment, specifically an energy-saving heat treatment device for the processing of metal parts for new energy vehicles. The invention includes: a frame, a mesh belt, and a mesh belt furnace. The mesh belt furnace includes a preheating section, a heating section, and a slow cooling section, and multiple thermocouples are installed inside the furnace. Insulation structures are provided between the heating section and the preheating and slow cooling sections. Multiple heating pipes are installed at the top of the heating section. A first fan is included, with its input end connected to a first exhaust pipe. One end of the first exhaust pipe is connected to the slow cooling section, and its output end is connected to an air supply pipe, which is connected to the bottom of the preheating section. A supplementary heat pipe is connected between the heating section and the first exhaust pipe, and an airflow regulating valve is installed on the supplementary heat pipe. This invention achieves heat insulation by providing insulation structures between the heating section and the preheating and slow cooling sections of the mesh belt furnace, reducing heat loss in the heating section and facilitating the cooling of the metal parts for new energy vehicles in the slow cooling section, thus achieving energy-saving effects.

Description

Technical Field

[0001] This invention relates to the field of heat treatment equipment technology, and in particular to an energy-saving heat treatment equipment for the processing of metal parts for new energy vehicles. Background Technology

[0002] Metal parts for new energy vehicles require quenching furnaces for heat treatment. A quenching furnace is a furnace used to heat metal parts for quenching. Quenching involves placing the metal parts into the furnace and heating them to a quenching temperature above the critical point and holding it for a period of time. Then, the metal parts are quickly removed from the furnace and placed into a quenching liquid for further quenching. The heat source for the quenching furnace can be electricity or fuel, and the temperature inside the furnace can be monitored using thermocouples. There are many types of quenching furnaces, among which the mesh belt furnace is one of the commonly used furnace types for processing metal parts for new energy vehicles.

[0003] A mesh belt furnace typically consists of a preheating section, a heating section, and a slow cooling section. Metal components for new energy vehicles are conveyed by a mesh belt, passing through these sections sequentially before undergoing quenching. Existing mesh belt furnaces have the following drawbacks: First, the heating section, preheating section, and slow cooling section are all interconnected, leading to rapid heat loss in the heating section. Second, the exhaust gas from the mesh belt furnace contains a large amount of heat, which is wasted when directly discharged, resulting in poor energy-saving performance. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an energy-saving heat treatment device for the processing of metal parts for new energy vehicles. By isolating the heating section from the slow cooling section and the preheating section, heat loss is reduced, aiming to solve the problems in the background technology.

[0005] To achieve the above-mentioned technical objectives, the specific technical solution of the present invention is as follows: The present invention proposes an energy-saving heat treatment equipment for the processing of metal parts for new energy vehicles, comprising: a frame, a mesh belt, and a mesh belt furnace. The mesh belt furnace includes a preheating section, a heating section, and a slow cooling section, and multiple thermocouples are installed inside the mesh belt furnace. A heat insulation structure is provided between the heating section and the preheating section and the slow cooling section. Multiple heating pipes are provided at the top of the heating section. A first fan is provided, with its input end connected to a first exhaust pipe for transferring heat from the slow cooling section to the preheating section. One end of the first exhaust pipe is connected to the slow cooling section, and the output end of the first fan is connected to an air supply pipe, which is connected to the bottom of the preheating section. A supplementary heat pipe is connected between the heating section and the first exhaust pipe, and an airflow regulating valve is installed on the supplementary heat pipe.

[0006] As a preferred embodiment of the present invention, the heat insulation structure includes a connecting frame and several heat insulation plates. The connecting frame is installed on the top of the mesh belt furnace, and the heat insulation plates are rotatably connected to the connecting frame. The heat insulation plates are coaxially fixedly connected to sprockets, and the sprockets are connected to each other by chain drive. A rotary motor for driving the sprockets to rotate is installed on the connecting frame.

[0007] As a preferred embodiment of the present invention, a movable plate is movably connected to the lower end of the heat insulation plate. Both the heat insulation plate and the movable plate are provided with connecting grooves. A spring is connected between the two connecting grooves. A pair of spring seats are fixedly connected to both ends of the spring. The two spring seats are respectively fixedly installed in the two connecting grooves. A metal cable is fixedly connected between the heat insulation plate and the movable plate.

[0008] As a preferred embodiment of the present invention, the heat insulation plate includes a shell and heat insulation material filled inside the shell; wherein, the movable plate has the same structure as the heat insulation plate.

[0009] As a preferred embodiment of the present invention, it further includes a second fan, the input end of which is connected to a second exhaust pipe, the second exhaust pipe is connected to a preheating section, and the output end of the second fan is connected to an exhaust pipe.

[0010] As a preferred embodiment of the present invention, one end of the first exhaust pipe and the second exhaust pipe is fixedly connected to an air suction hood, which is located at the top of the mesh belt furnace.

[0011] As a preferred embodiment of the present invention, a drive motor for driving the mesh belt is fixedly installed on the frame, and a guide roller connected to the mesh belt drive is installed on the frame.

[0012] As a preferred embodiment of the present invention, a movable partition is connected to the feed inlet of the preheating section, and a lifting cylinder for driving the partition to move up and down is installed on the preheating section.

[0013] As a preferred embodiment of the present invention, an air outlet hood is fixedly connected to the end of the air supply pipe, and multiple air guide plates are provided inside the air outlet hood. The air outlet hood is installed at the bottom of the preheating section and located below the mesh belt.

[0014] The beneficial effects of this invention are as follows: 1. The present invention provides heat insulation by setting heat insulation structures between the heating section, preheating section and slow cooling section of the mesh belt furnace, which reduces the heat loss in the heating section and is conducive to the cooling of metal parts of new energy vehicles in the slow cooling section, thus achieving energy-saving effect.

[0015] 2. The present invention uses a first fan to extract the heat emitted by the metal parts of the new energy vehicle in the slow cooling section and transport it to the preheating section for utilization. In addition, a heat replenishment pipe is connected to the first exhaust pipe, through which the exhaust gas in the heating section is extracted and transported to the preheating section. This not only utilizes the heat of the exhaust gas, but also avoids the problem of insufficient temperature in the preheating section. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure proposed in this invention.

[0017] Figure 2 This is a top view schematic diagram of the invention.

[0018] Figure 3 for Figure 2 Schematic diagram of the cross section of AA.

[0019] Figure 4 This is a schematic diagram of the heat insulation structure proposed in this invention.

[0020] Figure 5 This is a schematic diagram of the structure of the heat insulation board proposed in this invention.

[0021] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0022] The corresponding names of the attached figures are as follows: 1. Frame; 2. Mesh belt; 3. Heating section; 4. Preheating section; 5. Slow cooling section; 6. Insulation structure; 61. Connecting frame; 62. Insulation plate; 621. Movable plate; 622. Shell; 623. Insulation material; 624. Connecting groove; 625. Spring seat; 626. Spring component; 627. Metal cable; 63. Sprocket; 64. Chain; 65. Rotary motor; 7. First exhaust pipe; 8. First fan; 9. Air supply pipe; 10. Heat supply pipe; 11. Air volume regulating valve; 12. Second fan; 13. Second exhaust pipe; 14. Exhaust pipe; 15. Thermocouple; 16. Partition; 17. Lifting cylinder; 18. Drive motor; 19. Guide roller; 20. Suction hood; 21. Heating pipe; 22. Air outlet hood. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Example: This example discloses an energy-saving heat treatment equipment for the processing of metal parts for new energy vehicles, such as... Figures 1-6As shown, the system includes: a frame 1, a mesh belt 2, and a mesh belt furnace. The mesh belt 2 is a high-temperature resistant mesh belt capable of withstanding the working temperature of the mesh belt furnace. A drive motor 18 for moving the mesh belt 2 is fixedly installed on the frame 1, and a guide roller 19 connected to the mesh belt 2 is also installed on the frame 1. The upper layer of the mesh belt 2 passes through the mesh belt furnace, and the lower layer passes through the frame 1. The mesh belt furnace includes a preheating section 4, a heating section 3, and a slow cooling section 5. The mesh belt 2 drives the metal parts of the new energy vehicle through the preheating section 4, the heating section 3, and the slow cooling section in sequence. The preheating section 4 preheats the metal parts of the new energy vehicle. The heating section 3 has multiple silicon carbide heating tubes 21 at the top. The heating section 3 heats the metal parts of the new energy vehicle. The components are heated at high temperatures, and the metal parts of the new energy vehicle briefly stop in the slow cooling section 5 to cool down slightly. Multiple thermocouples 15 are installed inside the mesh belt furnace, distributed in the preheating section 4, heating section 3, and slow cooling section 5. These thermocouples are used to monitor the temperature of each section in the mesh belt furnace in real time. Compared to the existing mesh belt furnace with its interconnected structure between the heating section 3 and the preheating section 4 and slow cooling section 5, this embodiment has a heat insulation structure 6 between the heating section 3 and the preheating section 4 and slow cooling section 5, designing the heating section 3 as an independent, enclosed space. This effectively reduces heat loss within the heating section 3, achieving energy-saving effects, and prevents heat from entering the slow cooling section 5, resulting in better slow cooling of the metal parts of the new energy vehicle.

[0025] This embodiment also includes a first fan 8, with its input end connected to a first exhaust pipe 7 for transferring heat from the slow cooling section 5 to the preheating section 4. One end of the first exhaust pipe 7 is connected to the slow cooling section 5, and the output end of the first fan 8 is connected to an exhaust pipe 9, which is connected to the bottom of the preheating section 4. When the metal parts of the new energy vehicle pass through the slow cooling section 5, a large amount of heat is dissipated. The first fan 8 draws this heat from the slow cooling section 5 to the preheating section 4 to preheat the metal parts, thus utilizing the heat, avoiding waste, and achieving energy saving. Furthermore, a supplementary heat pipe 10 is connected between the heating section 3 and the first exhaust pipe 7. The supplementary heat pipe 10 is made of high-temperature resistant stainless steel and is equipped with an airflow regulating valve 11. The supplementary heat pipe 10 then directs the airflow from the heating section 3 to the preheating section 4. The heat from the exhaust gas in section 3 is supplied to the preheating section 4, which not only utilizes the heat in the exhaust gas but also provides high heat to the preheating section 4, avoiding the problem of insufficient temperature in the preheating section 4. The heat supplied to the preheating section 4 can be adjusted by the air volume regulating valve 11, making it easy to control the temperature of the preheating section 4. This embodiment also includes a second fan 12, the input end of which is connected to a second exhaust pipe 13, which is connected to the preheating section 4. The output end of the second fan 12 is connected to an exhaust pipe 14, which is connected to an external air purifier. The exhaust gas in the preheating section 4 is extracted by the second fan 12. Among them, a suction hood 20 is fixedly connected to one end of the first exhaust pipe 7 and the second exhaust pipe 13. The suction hood 20 is located at the top of the mesh belt furnace, which facilitates the large-volume air intake and transportation.

[0026] Preferably, a liftable partition 16 is connected to the feed inlet of the preheating section 4, and a lifting cylinder 17 is installed on the preheating section 4 to drive the partition 16 to rise and fall.

[0027] like Figures 4-6 As shown, the heat insulation structure 6 includes a connecting frame 61 and several heat insulation plates 62. The connecting frame 61 is installed on the top of the mesh belt furnace, and the heat insulation plates 62 are rotatably connected to the connecting frame 61. A sprocket 63 is coaxially fixedly connected to each heat insulation plate 62. The sprockets 63 are connected to each other via a chain 64. A rotary motor 65 is installed on the connecting frame 61 to drive the sprockets 63 to rotate. The rotary motor 65 is installed outside the mesh belt furnace. By driving the chain 64 to rotate, the rotary motor 65 can drive multiple heat insulation plates 62 to rotate, thereby adjusting the gap between adjacent heat insulation plates 62. When the sides of adjacent heat insulation plates 62 are in contact with each other, the gap is zero, and the heat insulation effect is the best. In this embodiment, a movable plate 621 is movably connected to the lower end of the heat insulation plate 62. The movable plate 621 can rotate horizontally and flip upwards to avoid obstructing the metal parts of the new energy vehicle. The heat insulation plate 62 and the movable plate 62... 1. Each of the two connecting slots 624 is provided, and a spring 626 is connected between the two connecting slots 624. A pair of spring seats 625 are fixedly connected to both ends of the spring 626. The two spring seats 625 are respectively fixedly installed in the two connecting slots 624. A metal cable 627 is fixedly connected between the heat insulation plate 62 and the movable plate 621. The metal cable 627 is made of high temperature resistant material. The spring 626 can play the role of resetting the movable plate 621. When the mesh belt 2 is driving the metal parts of the new energy vehicle to be transported, the metal parts of the new energy vehicle come into contact with the movable plate 621, and the movable plate 621 rotates to avoid the metal parts of the new energy vehicle and avoid obstructing the transport of the metal parts of the new energy vehicle. When no parts are being transported, the movable plate 621 is not subject to external force and returns to the state of being on the same plane as the heat insulation plate 62, so that the space on both sides of the heat insulation plate 62 is completely isolated.

[0028] Preferably, the heat insulation plate 62 includes a shell 622 and a heat insulation material 623 filled inside the shell 622. The heat insulation material 623 may be an alumina ceramic fiber composite material. The movable plate 621 has the same structure as the heat insulation plate 62.

[0029] Preferably, an air outlet hood 22 is fixedly connected to the end of the air supply pipe 9. The air outlet hood 22 is equipped with multiple air guide plates. The angle of the air guide plates is adjustable to facilitate the adjustment of the air direction. The air outlet hood 22 is installed at the bottom of the preheating section 4 and located below the mesh belt 2. Hot air is blown directly onto the surface of the metal parts of the new energy vehicle through the air outlet hood 22, resulting in better heating effect.

[0030] Working principle: In this embodiment, the heating section 3 of the mesh belt furnace is isolated from the preheating section 4 and the slow cooling section 5 by a heat insulation structure 6, making the heating section 3 almost closed, avoiding heat diffusion in the heating section 3, and effectively reducing heat loss in the heating section 3. The first fan 8 draws heat from the slow cooling section 5 to the preheating section 4 to preheat the metal parts of the new energy vehicle, thereby utilizing the heat and avoiding heat waste. In addition, the heat from the exhaust gas in the heating section 3 is supplemented and transported to the preheating section 4 through the heat supplement pipe 10, which can both utilize the heat in the exhaust gas and further supplement the preheating section 4 with high heat, avoiding the problem of insufficient temperature in the preheating section 4. Compared with the mesh belt furnace in the prior art, this embodiment can effectively reuse the excess heat in the mesh belt furnace, reduce the heat loss of the mesh belt furnace, and achieve energy saving.

[0031] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An energy-saving heat treatment device in the process of machining metal parts of new energy vehicles, comprising: The frame (1), the mesh belt (2), and the mesh belt furnace are characterized in that, The mesh belt furnace includes a preheating section (4), a heating section (3) and a slow cooling section (5), and multiple thermocouples (15) are installed inside the mesh belt furnace. The heating section (3) is provided with a heat insulation structure (6) between the preheating section (4) and the slow cooling section (5), and the top of the heating section (3) is provided with multiple heating tubes (21). The first fan (8) is used to transfer heat from the slow cooling section (5) to the preheating section (4). The input end of the first fan (8) is connected to the first exhaust pipe (7), one end of the first exhaust pipe (7) is connected to the slow cooling section (5), and the output end of the first fan (8) is connected to the air supply pipe (9), which is connected to the bottom of the preheating section (4). A supplementary heating pipe (10) is connected between the heating section (3) and the first exhaust pipe (7), and an air volume regulating valve (11) is installed on the supplementary heating pipe (10).

2. The energy-saving heat treatment equipment for new energy vehicle metal parts in the machining process according to claim 1, characterized in that, The heat insulation structure (6) includes a connecting frame (61) and several heat insulation plates (62). The connecting frame (61) is installed on the top of the mesh belt furnace, and the heat insulation plates (62) are rotatably connected to the connecting frame (61). The heat insulation plates (62) are coaxially fixedly connected to sprockets (63). The sprockets (63) are connected to each other by a chain (64). A rotary motor (65) for driving the sprockets (63) to rotate is installed on the connecting frame (61).

3. The energy-saving heat treatment equipment for new energy vehicle metal parts in the machining process according to claim 2, characterized in that, The heat insulation plate (62) is movably connected to the lower end of the movable plate (621). Both the heat insulation plate (62) and the movable plate (621) are provided with connecting grooves (624). A spring element (626) is connected between the two connecting grooves (624). A pair of spring seats (625) are fixedly connected to both ends of the spring element (626). The two spring seats (625) are respectively fixedly installed in the two connecting grooves (624). A metal cable (627) is fixedly connected between the heat insulation plate (62) and the movable plate (621).

4. The energy-saving heat treatment equipment for the processing of metal parts for new energy vehicles according to claim 3, characterized in that, The heat insulation plate (62) includes a shell (622) and heat insulation material (623) filled inside the shell (622); wherein the movable plate (621) has the same structure as the heat insulation plate (62).

5. The energy-saving heat treatment equipment for the processing of metal parts for new energy vehicles according to claim 4, characterized in that, It also includes a second fan (12), the input end of which is connected to a second exhaust pipe (13), the second exhaust pipe (13) is connected to the preheating section (4), and the output end of the second fan (12) is connected to an exhaust pipe (14).

6. The energy-saving heat treatment equipment for the processing of metal parts for new energy vehicles according to claim 5, characterized in that, The first exhaust pipe (7) and the second exhaust pipe (13) are fixedly connected to a suction hood (20) at one end, and the suction hood (20) is located at the top of the mesh belt furnace.

7. The energy-saving heat treatment equipment for the processing of metal parts for new energy vehicles according to claim 6, characterized in that, The frame (1) is fixedly installed with a drive motor (18) for driving the mesh belt (2) to move, and the frame (1) is also equipped with a guide roller (19) that is connected to the mesh belt (2) for transmission.

8. The energy-saving heat treatment equipment for the processing of metal parts for new energy vehicles according to claim 7, characterized in that, The preheating section (4) is connected to a liftable partition (16) at the feed inlet, and a lifting cylinder (17) is installed on the preheating section (4) to drive the partition (16) to rise and fall.

9. An energy-saving heat treatment equipment for the processing of metal parts for new energy vehicles according to claim 8, characterized in that, The air supply pipe (9) is fixedly connected to an air outlet hood (22) at its end. The air outlet hood (22) is provided with multiple air guide plates. The air outlet hood (22) is installed at the bottom of the preheating section (4) and located below the mesh belt (2).

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