03
2021
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06
Furnace structure and transformation are convenient for energy saving
(1) The use of a circular hearth instead of a box-shaped hearth can strengthen the uniform heat transfer effect of the hearth on the workpiece, reduce the heat dissipation of the furnace wall, and make the hearth form a heat exchange system to conduct heat between the heating element, the furnace lining and the workpiece. exchange. By adopting a reasonable furnace space and without increasing the volume of the furnace space, the furnace inner wall area is enlarged, and the furnace heat exchange is increased by increasing the heat exchange area to increase the heat efficiency.
(2) In the industrial furnace, a fan is installed in the furnace to enhance the convective heat transfer in the furnace. Especially for small heating furnaces, high-speed airflow can destroy the bottom layer of the furnace gas boundary that is stagnant on the surface of the workpiece to hinder heat transfer and interface reaction, which can shorten the heating time and accelerate the increase of the temperature of the workpiece.
(3) Furnace body sealing, including the sealing of all lead-out components in the furnace, furnace shell, furnace door, etc. If the furnace body is not tightly sealed, it will cause fire running and leakage everywhere, resulting in a large amount of energy waste, equipment burnout, and harsh environment. Therefore, the furnace body sealing directly affects the quality of the workpiece and energy consumption, and the sealing is also controlled by the atmosphere in the furnace. The essential. The emergence of refractory fiber products has created conditions for solving furnace body sealing, and industrial furnaces have achieved soft sealing.
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