A waste heat utilization system of an enameled machine

Abstract

This utility model provides a waste heat recovery system for an enameling machine, including an enameling machine heating cylinder and an air-connected furnace. The air-connected furnace is welded and fixed to the side of the enameling machine heating cylinder. Heating rings are fixedly connected to both ends of the enameling machine heating cylinder. A filter chamber is provided in the middle of the air-connected furnace. A guide block and absorbent fire-fighting cotton are provided in the middle of the filter chamber to treat and guide the waste gas. Two heating chambers are provided in the middle of the air-connected furnace near the ends of the enameling machine heating cylinder. At least three heating wires are fixedly connected to the middle of the heating chamber by screws. A guide plate and heating rings are fixedly connected to the inner wall of the enameling machine heating cylinder by screws to guide the heating air. A vent is provided on the side of the heating cylinder near the air-connected furnace. This utility model can recover and utilize the waste gas generated during the heating of the enameling machine and ensure that the enameled wire is not heated for too long, thus ensuring the integrity of the enameled wire coating.

Description

Technical Field

[0001] This utility model relates to the field of enameling machine technology, and in particular to a waste heat utilization system for enameling machines. Background Technology

[0002] Enamelled wire is a major type of winding wire, widely used in motors and electrical appliances. The processing of enamelled wire involves steps such as coating, baking, cooling, and winding. During the baking step, the enamelled wire passes through an enameling machine, where a heating device heats it and generates hot air. This hot air blows onto the surface of the enamelled wire, baking the coating. However, the temperature of the hot air after baking is still high, and directly releasing it into the air would be wasteful. Therefore, many factories recycle waste air during production, primarily for preheating the cold air before heating. However, this prolongs the heating time of the enamelled wire, and the air temperature during preheating is greatly affected by the ambient temperature. For example, in hot weather, the preheated enamelled wire is already very hot. If this wire is then baked again, the coating on the surface of the enamelled wire may decompose and carbonize, causing the coating to peel off or the surface to become rough. For instance, when the temperature exceeds 150℃, the coating on the surface of the enamelled wire may decompose and carbonize due to the high temperature, causing it to separate from the copper wire. Utility Model Content

[0003] The purpose of this invention is to provide a waste heat utilization system for enameling machines to solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a waste heat utilization system for an enameling machine, including an enameling machine heating cylinder and an air-connecting furnace. The air-connecting furnace is welded and fixed to the side end of the enameling machine heating cylinder. Heating rings are fixedly connected to the two ends of the enameling machine heating cylinder. A filter chamber is provided in the middle of the air-connecting furnace. A guide block and absorbent fire-fighting cotton are provided in the middle of the filter chamber to treat and guide the waste gas. Two heating chambers are provided in the middle of the air-connecting furnace near the ends of the enameling machine heating cylinder. At least three heating wires are fixedly connected to the middle of the heating chamber by screws. A guide plate for guiding the heating air is fixedly connected to the inner wall of the enameling machine heating cylinder by screws.

[0005] The heating ring has an air vent on the side near the air-connected furnace and at least two air jets on the side near the enameling machine heating cylinder, with the air jets tilted toward the midpoint of the enameling machine heating cylinder.

[0006] The filter chamber has an exhaust component fixedly connected to its opening by bolts. The end of the exhaust component facing the heating cylinder of the enameling machine is fixedly connected to a fixed bracket for limiting and fixing the guide block.

[0007] The air-connected furnace has two air inlets on its side, which are connected to a fan, connected to a heating chamber, and connected to a filter chamber.

[0008] Preferably, both ends of the heating cylinder of the enameling machine are fixedly connected to end caps by screws, and the end caps have a through hole in the middle that is slightly larger than the diameter of the enameled wire.

[0009] Preferably, the heating ring has an annular cavity inside, and a thermometer for detecting the air temperature is provided on the inner wall of the cavity. The air vent is connected to the heating cavity. A current regulator is provided in the middle of the air-connected furnace, and the current regulator is connected to the thermometer and the heating wire respectively.

[0010] Preferably, the heating cylinder of the enameling machine is provided with an exhaust port in the middle, the exhaust port is connected to the filter chamber, the air guide plate is an arc-shaped structure, the exhaust port and the air guide plate are arranged opposite to each other on the inner side wall of the heating cylinder of the enameling machine, and the top of the air guide plate faces the exhaust port.

[0011] Preferably, the sidewalls of the guide block facing both ends of the heating cylinder of the enameling machine have an arc-shaped structure, and the absorbent fire-fighting cotton is fixedly connected to the sidewall. The absorbent fire-fighting cotton is made of high-temperature resistant glass fiber cotton.

[0012] Preferably, the exhaust component has a funnel-shaped structure, and a through hole is provided on the side wall of the exhaust component. An exhaust valve is fixedly connected to one end of the exhaust component near the outer side wall of the heating cylinder of the enameling machine.

[0013] The beneficial effects of the extrusion device provided by this utility model are as follows: a portion of the heated waste gas is recovered into the softening device for secondary heating, which greatly reduces energy consumption. When the heated air is sprayed out to heat the enameled wire, the temperature is monitored to prevent excessive heat from causing the coating on the surface of the enameled wire to decompose. When the temperature is high, the current of the heating wire can be controlled to reduce the temperature of the air passing through the heating wire. Because the length of the heating cylinder of the enameling machine is fixed, the heating time of the enameled wire can be precisely controlled. This structure effectively reuses the heated waste gas and avoids the problems of excessive heating time and excessive temperature of the enameled wire, ensuring the quality of the coating of the enameled wire. Attached Figure Description

[0014] Figure 1 This is a three-dimensional connection diagram of the heating cylinder of the enameling machine provided by this utility model.

[0015] Figure 2 This is a three-dimensional connection diagram of the guide block and exhaust component provided by this utility model.

[0016] Figure 3 This is a schematic diagram of the internal connection between the heating cylinder of the enameling machine and the gas-connected furnace provided by this utility model.

[0017] In the diagram: 1 Enameling machine heating cylinder, 2 end cap, 3 heating ring, 4 vent, 41 jet nozzle, 5 air guide plate, 6 exhaust port, 7 exhaust component, 8 fixed bracket, 9 guide block, 10 absorbent fire cotton, 11 filter chamber, 12 exhaust valve, 13 heating chamber, 14 air inlet, 15 heating wire, 16 air-connected furnace. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] See Figure 1-3 The present invention provides a waste heat utilization system for an enameling machine, comprising an enameling machine heating cylinder 1 and an air-connecting furnace 16. The air-connecting furnace 16 is welded and fixed to the side end of the enameling machine heating cylinder 1. Heating rings 3 are fixedly connected to both ends of the enameling machine heating cylinder 1. A filter chamber 11 is provided in the middle of the air-connecting furnace 16. A guide block 9 for treating and guiding waste gas and an absorbent fire-fighting cotton 10 are provided in the middle of the filter chamber 11. Two heating chambers 13 are provided in the middle of the air-connecting furnace 16 near the ends of the enameling machine heating cylinder 1. At least three heating wires 15 are fixedly connected to the middle of the heating chambers 13 by screws. A guide plate 5 for guiding the heating air is fixedly connected to the inner wall of the enameling machine heating cylinder 1 by screws. The heating rings 3 have an air vent 4 on the side near the air-connecting furnace 16. At least two air jets 41 are provided on the side of the heating rings 3 near the enameling machine heating cylinder 1. 41. The filter chamber 11 is inclined towards the midpoint of the enameling machine heating cylinder 1. Its opening is fixedly connected to the exhaust component 7 by bolts. The end of the exhaust component 7 facing the enameling machine heating cylinder 1 is fixedly connected to the fixing bracket 8 for limiting and fixing the guide block 9. The air-connecting furnace 16 has two air inlets 14 on its side. The air inlets 14 are connected to the fan and the heating chamber 13. The filter chamber 11 is connected to the heating chamber 13. In order to ensure that the air flows smoothly in the system in a predetermined direction, a one-way valve can be installed between the filter chamber 11 and the heating chamber 13. Both ends of the enameling machine heating cylinder 1 are fixedly connected to the end caps 2 by screws. The middle of the end cap 2 has a through hole slightly larger than the diameter of the enameled wire. The end cap 2 can restrict the air entering the enameling machine heating cylinder 1 to avoid the temperature inside the enameling machine heating cylinder 1 being greatly affected by the external environment due to too much air entering.

[0020] The heating ring 3 has an annular cavity inside, and a thermometer for detecting the air temperature is installed on the inner wall of the cavity. The air vent 4 is connected to the heating chamber 13. A current regulator is installed in the middle of the air-connected furnace 16, and the current regulator is connected to the thermometer and the heating wire 15 respectively. The thermometer detects the temperature of the hot air entering the heating ring 3. When the temperature is detected to be too high, the current regulator will change the current flowing into the heating wire 15 to reduce the temperature after passing through the heating wire 15, thereby ensuring that the temperature is not too high when heating the enameled wire and avoiding affecting the coating of the enameled wire.

[0021] The heating cylinder 1 of the enameling machine is provided with an exhaust port 6 in the middle part. The exhaust port 6 is connected to the filter chamber 11. The air guide plate 5 has an arc-shaped structure. The exhaust port 6 and the air guide plate 5 are arranged opposite to each other on the inner side wall of the heating cylinder 1 of the enameling machine. The top of the air guide plate 5 faces the exhaust port 6. The air guide plate 5 can guide the air after the enameling wire is heated, so that the air blows towards the exhaust port 6 and then enters the filter chamber 11.

[0022] The side walls of the guide block 9 facing both ends of the heating cylinder 1 of the enameling machine are arc-shaped, and the adsorbent fire cotton 10 is fixedly connected to the side wall. The adsorbent fire cotton 10 is made of high-temperature resistant glass fiber cotton. The guide block can guide the air, so that the air flows through the guide block to the adsorbent fire cotton 10. The adsorbent fire cotton 10 removes the paint mixed in the exhaust gas, so as to prevent it from adhering to the heating wire 15 when it flows to the heating wire, thus avoiding affecting the heating of the heating wire 15.

[0023] The exhaust component 7 has a funnel-shaped structure and a through hole on its side wall. An exhaust valve 12 is fixedly connected to one end of the exhaust component 7 near the outer side wall of the enameling machine heating cylinder 1. The exhaust valve 12 controls the communication area, thereby preventing the air pressure and temperature inside the enameling machine heating cylinder 1 from becoming too high, and allowing the air to circulate smoothly within the system. When the air is first heated, the exhaust valve can be closed to allow the air to circulate directly within the system, thereby quickly heating up the various structures of the system.

[0024] Air enters the heating chamber 13 through the air inlet 14 and is heated by the heating wire 15. The heated air flows into the heating rings 3 at both ends, and then flows along the jet nozzle 41 into the enameling machine heating cylinder 1 to heat the passing enameling wire. The heated exhaust gas flows into the filter chamber 11 through the guide plate 5. Part of the filtered exhaust gas flows out through the exhaust pipe 7, and part flows back into the heating chamber for reheating, thus recycling the exhaust gas and reducing losses.

[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waste heat recovery system for an enameling machine, comprising an enameling machine heating cylinder (1) and an air-connected furnace (16), characterized in that: The air-connecting furnace (16) is welded and fixed to the side end of the enameling machine heating cylinder (1). The enameling machine heating cylinder (1) is fixedly connected to heating rings (3) near both ends. The air-connecting furnace (16) has a filter chamber (11) in the middle. The filter chamber (11) has a guide block (9) for treating and guiding the exhaust gas and an adsorbent fire cotton (10) in the middle. The air-connecting furnace (16) has two heating chambers (13) near the ends of the enameling machine heating cylinder (1). At least three heating wires (15) are fixedly connected to the middle of the heating chamber (13) by screws. The inner wall of the enameling machine heating cylinder (1) is fixedly connected to a guide plate (5) for guiding the heating air by screws. The heating ring (3) has an air vent (4) on the side near the air-connected furnace (16), and at least two air jets (41) on the side near the enameling machine heating cylinder (1). The air jets (41) are inclined toward the midpoint of the enameling machine heating cylinder (1). The filter chamber (11) has an exhaust component (7) fixedly connected to its opening by bolts. The exhaust component (7) is fixedly connected to a fixed bracket (8) for limiting and fixing the guide block (9) at one end facing the enameling machine heating cylinder (1). The air-connected furnace (16) has two air inlets (14) on its side. The air inlets (14) are connected to a fan. The air inlets (14) are connected to a heating chamber (13). The filter chamber (11) is connected to the heating chamber (13).

2. The waste heat recovery system for an enameling machine according to claim 1, characterized in that: Both ends of the heating cylinder (1) of the enameling machine are fixedly connected to end caps (2) by screws, and the end caps (2) have a through hole in the middle that is slightly larger than the diameter of the enameled wire.

3. The waste heat recovery system for an enameling machine according to claim 1, characterized in that: The heating ring (3) has an annular cavity inside, and a thermometer for detecting the air temperature is provided on the inner wall of the cavity. The air vent (4) is connected to the heating cavity (13). The air-connected furnace (16) has a current regulator in the middle, and the current regulator is connected to the thermometer and the heating wire (15) respectively.

4. The waste heat recovery system for an enameling machine according to claim 1, characterized in that: The heating cylinder (1) of the enameling machine is provided with an exhaust port (6) in the middle part. The exhaust port (6) is connected to the filter chamber (11). The air guide plate (5) has an arc-shaped structure. The exhaust port (6) and the air guide plate (5) are arranged opposite to each other on the inner side wall of the heating cylinder (1) of the enameling machine. The top of the air guide plate (5) faces the exhaust port (6).

5. The waste heat recovery system for an enameling machine according to claim 1, characterized in that: The guide block (9) has an arc-shaped sidewall facing both ends of the enameling machine heating cylinder (1), and the adsorbent fire cotton (10) is fixedly connected to the sidewall. The adsorbent fire cotton (10) is made of high-temperature resistant glass fiber cotton.

6. The waste heat recovery system for an enameling machine according to claim 1, characterized in that: The exhaust component (7) has a funnel-shaped structure. The side wall of the exhaust component (7) is provided with a through hole. An exhaust valve (12) is fixedly connected to one end of the exhaust component (7) near the outer side wall of the enameling machine heating cylinder (1).

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