▎ 摘　　要

NOVELTY - The utility model claims a ceramic heating pipe, comprising a heat-conducting insulator provided with a hollow channel, and a non-metal heating layer set on the outer surface of the heat-conducting insulator and/or the inner surface of the non-metal, the non-heating layer along the axial direction of the heat-conducting insulator, A positive electrode connection end and a negative electrode connection end are provided at a predetermined position. Compared with the past structure, the utility model has the following advantages: using graphene as the heating body, it has fast speed of heating, high electric heating efficiency, energy saving, uniform heating, high heat productivity and so on, power saving 30 %-50 % than resistor wire, 15 %-20 % higher than the semiconductor heating, heating uniformly, high heat productivity and so on. The whole of the heat-conducting insulator is industrial ceramic, it has high melting point, high hardness, high strength, good chemical corrosion resistance and medium dielectric performance characteristic, it also has low cost advantage, easy to realize, which is good for wide popularization and application.