Double-circulation heat exchange device of oven of high-speed vertical enameling machine

Abstract

The invention relates to a double-circulation heat exchange device of an oven of a high-speed vertical enameling machine. The device comprises an oven hearth and a heating catalysis area, the heating catalysis area is connected with a hearth evaporation area via a circulating fan driven by a motor, and leads to a hot air distribution pipe, the end portion of the hot air distribution pipe is provided with an outlet adjusting air door, and the outlet of the hot air distribution pipe is orientated to a enameled wire direction channel; the heating catalysis area comprises a primary before-catalysis electric heating area, a primary catalysis chamber, a primary post-catalysis supplementary heating area and a secondary catalysis chamber, each of the primary before-catalysis electric heating area and the primary post-catalysis supplementary heating area is provided with multiple electric heating pipes, each of the primary catalysis chamber and the secondary catalysis chamber is provided with an inclined catalysis plate; and the hot air distribution pipe is provided with an exhaust gas input port, the exhaust gas input port is connected with a heat exchanger, the heat exchanger is connected with a heat exchange pipe of an evaporation area via a connection pipe, and the end portion of the heat exchange pipe of the evaporation area is provided with a waste suction inlet connected with an exhausting blower fan.

Description

technical field [0001] The invention relates to the technical field of wire drawing enameling machine equipment, in particular to an enamelling machine oven. Background technique [0002] The high-speed vertical wire drawing enamelling machine conventionally adopts electric heating before catalysis and a catalytic combustion structure, which requires electric heating before catalysis as the starting point of combustion before catalysis. Since the process setting temperature before catalysis is relatively high, it is necessary to achieve sufficient insulation varnish solvent vapor. Combustion requires a large amount of electric heating to assist heating, and the combustion of solvent vapor is not sufficient, the temperature after catalysis is relatively low, and the energy consumption is relatively high, which increases the cost of enameled wire production enterprises, and because the solvent vapor cannot be fully burned, resulting in toxic and harmful gas. [0003] The oven...

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Problems solved by technology

[0002] The high-speed vertical wire drawing enamelling machine conventionally adopts electric heating before catalysis and a catalytic combustion structure, which requires electric heating before catalysis as the starting point of combustion before catalysis. Since the process setting temperature before catalysis is relatively high, it is necessary to achieve sufficient insulation varnish solvent vapor. Combustion requires a large amount of electric heating to assist heating, and the combustion of solvent vapor is not sufficient, the temperature after catalysis is relatively low, and the energy consumption is relatively high, which increases the cost of enameled wire production enterprises, and because the solvent vapor cannot be fully burned, resulting in toxic and harmful gas

[0003] The oven circulation system of the high-speed vertical wire drawing enamelling machine conventionally adopts a single circulation fan to inhale the heated hot air from the inlet evaporation area and the cold air brought along with the line from the oven inlet, so that the temperature of the mixed air sucked by the overall circulation fan is relatively low. In this way, only through a large amount of electric heating can the set temperature of the enameled wire production process be reached, resulting in long-term operation of the electric heating tube and the inability to increase the inlet temperature, and relatively high energy consumption, which is not conducive to the process furnace temperature curve of enameled wire production

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