A heat cycle system of an enameled wire oven

Abstract

The utility model relates to the technical field of drying furnace, concretely to a kind of enamelled wire drying furnace's heat cycle system, including drying furnace body, circulation fan and filter device are arranged on the drying furnace body, the drying furnace body is connected with filter device by connecting pipe intercommunication, circulation fan is connected with filter device by connecting elbow pipe intercommunication, the gas outlet connecting pipe is connected to the air outlet end of circulation fan, the spiral heating pipe is interconnected on the gas outlet connecting pipe, gas is circulated in closed loop that drying furnace body, filter device, spiral heating pipe and annular pipe are formed by circulation fan drive, preheating function of copper spiral heating pipe is used to realize heat cascade utilization, substantially reduce heat loss, significantly improve heat utilization rate;Meanwhile, the communication long pipe of annular array on annular pipe and the jet head on the communication long pipe, hot gas can be evenly sprayed to each area inside drying furnace body, ensure that the surface paint layer of enameled wire solidifies consistently, effectively improve product quality, have the advantages of energy saving and quality improvement.

Description

Technical Field

[0001] This utility model relates to the field of oven technology, specifically a thermal circulation system for an enameled wire oven. Background Technology

[0002] In the production of enameled wire, the oven is a key piece of equipment for curing the enamel layer on the surface of the wire, and the performance of its thermal circulation system directly affects the production quality and energy consumption of the enameled wire. Currently, traditional enameled wire oven thermal circulation systems generally suffer from low heat utilization rates. A large amount of heat is lost during circulation through the exhaust gas from the oven, resulting in high energy consumption and increased production costs. Furthermore, the hot airflow distribution in existing systems is often uneven, causing temperature differences in different areas inside the oven. This leads to inconsistent curing of the enamel layer on the surface of the wire, affecting the insulation performance and mechanical strength of the product, and may even result in localized overheating and cracking of the enamel layer or incomplete curing. Therefore, this invention proposes a thermal circulation system for enameled wire ovens to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a thermal circulation system for an enameled wire baking oven to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a thermal circulation system for an enameled wire baking oven, comprising an oven body, a circulating fan and a filter device mounted on the oven body, the oven body and the filter device being connected by a connecting pipe, the circulating fan and the filter device being connected by a connecting bend, an outlet pipe being connected to the outlet end of the circulating fan, a spiral heating pipe being connected to the outlet pipe, and a heating component for baking the enameled wire being connected to the spiral heating pipe.

[0005] Preferably, the heating assembly includes an annular tube fixedly disposed inside the oven body, and a heating ring is installed inside the annular tube.

[0006] Preferably, the annular tube is connected to multiple connecting long tubes, and multiple jet heads are arranged in a linear array on the connecting long tubes. The multiple connecting long tubes are arranged in annular array inside the oven body.

[0007] Preferably, one end of each of the multiple connecting long tubes is fixedly connected to a fixing ring, and the fixing ring is fixedly installed inside the oven body.

[0008] Preferably, the spiral heating tube has a copper spiral winding structure, and its tube wall preheats the enameled wire through heat conduction.

[0009] Preferably, the spiral heating tube is connected to multiple gas guide pipes, and the end of the gas guide pipe away from the spiral heating tube extends into the oven body and is connected to the annular pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are: The circulating fan drives the gas to circulate in a closed loop consisting of the oven body, filter device, spiral heating tube, and annular tube. The preheating function of the copper spiral heating tube enables the cascade utilization of heat, significantly reducing heat loss and greatly improving heat utilization efficiency. At the same time, the annular array of connecting pipes and the jet nozzles on the connecting pipes can evenly spray hot air into all areas inside the oven body, ensuring consistent curing of the enameled wire surface coating, effectively improving product quality, and combining energy saving and quality improvement advantages. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of the oven body of this utility model.

[0013] Figure 3 This is a schematic diagram of the connecting long tube structure of this utility model.

[0014] Figure 4 This is a schematic diagram of the internal structure of the annular tube of this utility model.

[0015] In the diagram: 1. Oven body; 2. Spiral heating tube; 3. Gas outlet connecting pipe; 4. Circulating fan; 5. Filter device; 6. Connecting pipe; 7. Annular pipe; 8. Connecting long pipe; 9. Jet nozzle; 10. Fixing ring; 11. Heating ring; 12. Gas guide connecting pipe; 13. Connecting bend pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0017] Please see Figures 1 to 4This utility model provides a technical solution: a thermal circulation system for an enameled wire baking oven, including an oven body 1, a circulating fan 4 and a filter device 5 installed on the oven body 1, the oven body 1 and the filter device 5 are connected by a connecting pipe 6, the circulating fan 4 and the filter device 5 are connected by a connecting bend 13, the outlet end of the circulating fan 4 is connected to an outlet pipe 3, the outlet pipe 3 is connected to a spiral heating pipe 2, the spiral heating pipe 2 is connected to a heating component for baking the enameled wire, the filter device 5 can be a glass fiber filter in the prior art, which is made of multiple layers of glass fiber. Glass fiber has a large specific surface area and good filtration performance, and can effectively capture fine paint mist particles and dust in the gas. Its high-temperature resistance is good, making it suitable for use in the temperature environment of this thermal circulation system. It is also relatively low in cost and easy to replace. The gas is driven by the circulating fan 4 to circulate in a closed loop consisting of the oven body 1, the filter device 5, the spiral heating tube 2, and the annular tube 7. The preheating function of the copper spiral heating tube 2 is used to achieve the cascade utilization of heat, which greatly reduces heat loss and significantly improves the heat utilization rate. At the same time, the annular array of connecting long tubes 8 on the annular tube 7 and the jet nozzles 9 on the connecting long tubes 8 can evenly spray hot air into all areas inside the oven body 1, ensuring that the paint layer on the surface of the enameled wire is cured uniformly, effectively improving product quality, and combining the advantages of energy saving and quality improvement.

[0018] like Figure 3 as well as Figure 4 As shown, the heating assembly includes an annular tube 7 fixed inside the oven body 1 by bolts. A heating ring 11 is installed inside the annular tube 7. Multiple connecting long tubes 8 are connected to the annular tube 7. Multiple jet nozzles 9 are arranged in a linear array on the connecting long tubes 8. The multiple connecting long tubes 8 are arranged in an annular array inside the oven body 1. A fixing ring 10 is welded and fixed to one end of the multiple connecting long tubes 8. The fixing ring 10 is welded and fixed inside the oven body 1. The annular array of connecting long tubes 8 on the annular tube 7 and the jet nozzles 9 on the connecting long tubes 8 can evenly spray hot air to all areas inside the oven body 1, ensuring that the paint layer on the surface of the enameled wire is cured uniformly and effectively improving product quality.

[0019] like Figure 2 As shown, the spiral heating tube 2 is a copper spiral wound structure. Its tube wall preheats the enameled wire through heat conduction. Multiple gas guide pipes 12 are connected to the spiral heating tube 2. The end of the gas guide pipe 12 away from the spiral heating tube 2 extends into the oven body 1 and is connected to the annular pipe 7. The preheating function of the copper spiral heating tube 2 is used to realize the cascade utilization of heat, greatly reduce heat loss, and significantly improve the heat utilization rate.

[0020] In actual use, the enameled wire is first passed through the spiral heating tube 2 and the oven body 1. In the initial state, in order to heat the oven body 1, the circulating fan 4 and the heating ring 11 are turned on. Under the action of the circulating fan 4, the gas in the oven body 1 enters the annular pipe 7 through the connecting pipe 6, the connecting bend 13, the exhaust pipe 3, the spiral heating tube 2, and the guide pipe 12 for heating. The hot gas enters the connecting long pipe 8 and is finally sprayed out from the jet nozzle 9 to bake the enameled wire. The baked gas enters the filter device 5 through the connecting pipe 6 for filtration. The filtered gas enters the spiral heating tube 2 through the connecting bend 13 and the exhaust pipe 3. Since the spiral heating tube 2 is made of thermally conductive copper, it achieves preheating of the enameled wire. The gas enters the annular pipe 7 through the spiral heating tube 2 and the guide pipe 12 and is reheated by the heating ring 11 to reach the required temperature. Then it is sprayed out from the connecting long pipe 8 and the jet nozzle 9. This cycle is repeated to achieve heat circulation.

[0021] 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 thermal circulation system for an enameled wire baking oven, comprising an oven body (1), characterized in that: The oven body (1) is equipped with a circulating fan (4) and a filter device (5). The oven body (1) and the filter device (5) are connected by a connecting pipe (6). The circulating fan (4) and the filter device (5) are connected by a connecting bend pipe (13). The outlet end of the circulating fan (4) is connected to an outlet pipe (3). A spiral heating pipe (2) is connected to the outlet pipe (3). A heating component for baking enameled wire is connected to the spiral heating pipe (2).

2. The thermal circulation system of the enameled wire baking oven according to claim 1, characterized in that: The heating assembly includes an annular tube (7) fixedly disposed inside the oven body (1), and a heating ring (11) is installed inside the annular tube (7).

3. The thermal circulation system of the enameled wire baking oven according to claim 2, characterized in that: The annular tube (7) is connected to multiple connecting long tubes (8), and multiple jet heads (9) are arranged in a linear array on the connecting long tubes (8). The multiple connecting long tubes (8) are arranged in annular array inside the oven body (1).

4. The heat circulation system of the enameled wire baking oven according to claim 3, characterized in that: One end of each of the multiple connecting long tubes (8) is fixedly connected to a fixing ring (10), and the fixing ring (10) is fixedly installed inside the oven body (1).

5. The heat circulation system of the enameled wire baking oven according to claim 1, characterized in that: The spiral heating tube (2) is a copper spiral winding structure, and its tube wall preheats the enameled wire through heat conduction.

6. The thermal circulation system of an enameled wire baking oven according to claim 2, characterized in that: The spiral heating tube (2) is connected to multiple gas guide pipes (12). The end of the gas guide pipe (12) away from the spiral heating tube (2) extends into the oven body (1) and is connected to the annular pipe (7).

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