▎ 摘　　要

NOVELTY - The utility model claims a tunnel graphene heating drain structure, comprising a tunnel along the wall inner surface circumferentially formed drain tank and drain pipe located in the drain tank, the draining groove is paved with graphene tracing band, the graphite heat tracing belt after paving in the drain passage is formed of a section U-shaped; the drain pipe located inside the passage and heat tracing belt connected with the graphene, the graphene heat tracing belt is composed of a heating part located at one end of the heating part of the positive pole connecting part and the negative electrode connecting part of the other end of the heating part; one side of surface of said heating part is adhered with a heat insulating layer. The beneficial effects are as follows: through the graphene heat tracing belt arranged on the drain tank, surrounding the drain, convenient installation, electrifying and heating to prevent the drainpipe inner icing, improving performance of guide pipe, using graphite alkene heat tracing belt heating, high heating efficiency, reduces the waste of electric energy.