▎ 摘　　要

NOVELTY - The device has an annular fin radiator sleeved on an outer wall of a tubular carbon heater. An insulating and thermally conductive layer is located between the annular fin radiator and the tubular carbon heater. The tubular carbon heater is provided with carbon layer containing graphene material. The tubular carbon heater is provided with a support pipe. The carbon layer is attached to a side wall of the support pipe. A ceramic insulating layer is provided on the tubular carbon heater. The support pipe is formed as a stainless steel pipe. The ceramic insulating layer is located between the stainless steel pipe and the carbon layer. USE - Annular multi-fin carbon heating device. ADVANTAGE - The ring-shaped fin radiator has a large heat transfer area to fully conduct the heat generated by the tubular carbon heater due to the large heating area of the tubular carbon heater. The air outlet temperature of the heating device is stable and uniform, which overcomes the defects that the existing heating device using resistance wire heating has a low air outlet temperature when the air volume is too large, and the air output temperature is too high when the air volume is too small. DESCRIPTION OF DRAWING(S) - The drawing shows a front view of an annular multi-fin carbon heating device.