Enameled wire baking hot air circulation method and device

A hot air circulation, enameled wire technology, applied in drying, lighting and heating equipment, heating to dry solid materials, etc., can solve the problems of product surface quality decline, short service life, high material requirements, etc., to reduce production costs and Energy consumption, good quality of processed products, good thermal cycle effect

Inactive Publication Date: 2008-03-26
何富贵
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AI-Extracted Technical Summary

Problems solved by technology

[0002] In the current enameled wire production, hot air circulation is usually used for heat circulation treatment in the enameled wire baking step. Therefore, a heat circulation structure is usually provided in the oven part. The conventional hot air circulation is to let the hot air in the oven enter into the After the reaction in the catalytic device, it is heated, and then the hot air is sucked out by the fan and sent back to the oven; in this process, the temperature of the hot air before the oven enters the catalytic device is about 400°C, and the ga...
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Abstract

This invention relates to a circulating method and a device for hot air baking enamel wires, in which, a fan in front of the baker aspirates hot air in the baker and sends it into a catalyzing device, which sends the hot air to a firebox for heating then the hot air enters into a heat-storage chamber and then is sent to the baker from the back of the baker, which applies a fan to send hot air into a circulation device and then to a baker, since temperature of hot air entering into the fan is low, requirement on the vanes and air vent is low and speed of the hot air entering into the baker is uniform, the thermal circulation result is good.

Application Domain

Drying solid materials with heatCable/conductor manufacture +1

Technology Topic

Combustion chamberEngineering +2

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  • Enameled wire baking hot air circulation method and device

Examples

  • Experimental program(1)

Example Embodiment

[0012] Embodiment 1: Enameled wire baking hot air circulation method, the hot air in the oven 1 is sucked out by the fan 2 installed in the front of the oven 1, and the fan 2 sends the hot air containing solvent vapor into the catalytic device 3, and passes through the fan 2. The hot air from the catalytic device 3 enters the combustion chamber 4 for heating, and the heated hot air enters the heat storage chamber 5, and the hot air is sent from the rear of the oven 1 through the heat storage chamber 5, and the heat storage chamber 5 The middle part of the hot air enters the heat exchange device 10 and is discharged after heat exchange. The heat exchange device 10 heats the sucked air and sends it to the front end of the oven 1 .
[0013] The hot air circulation device for enameled wire baking as shown in Figure 1 is composed of an oven 1. A fan 2 is provided on the air supply pipe 7 at the front of the oven 1. The fan 2 is connected to the catalytic device 3 through the air supply pipe 7. The catalytic device 3 is connected to the combustion chamber 4, the combustion chamber 4 is connected to the heat storage chamber 5, the heat storage chamber 5 is provided with an air adjustment pipe 9, the heat storage chamber 5 is connected to the rear of the oven 1, and the storage chamber 5 is connected to the heat exchange device through the exhaust pipe 6 10 (the heat exchange device 10 is a conventional heat exchanger), the heat exchange device 10 is connected to the front end of the oven 1 through the air supply pipe 8 .
[0014] During the working process, because the fan 2 is set before the catalytic device 3 and the combustion chamber 4, the temperature of the hot air in contact with it is usually about 400°C, which is much lower than the temperature experienced by the original fan 2, not only in the fan blades of the fan The material requirements of the air outlet are reduced, and the service life is prolonged. After the hot air enters the catalytic device 3 and the combustion chamber 4, it enters the oven 1 through the heat storage chamber 5, avoiding the direct feeding of the fan. If the wind speed is too fast, the heat in the oven 1 is kept uniform. Even if the furnace chamber of the oven 1 is enlarged and the number of enameled wire cores produced is increased, the excellent surface quality can still be guaranteed; the heat storage chamber 5 is provided with an air adjustment pipe 9, which Part of the fresh air can be inhaled into the storage chamber 5 according to the heat adjustment needs of the oven 1, and at the same time, the storage chamber 5 can send part of the hot air into the heat exchange device 10 through the exhaust pipe 6, and the heat exchange device 10 will contain the air. The hot air of impurities is discharged after heat exchange, and at the same time, fresh air is heated by the heat exchange device 10 and sent to the front end of the oven 1 by the air supply pipe 8 to replace electric heating to achieve the purpose of environmental protection and energy saving.

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