▎ 摘　　要

NOVELTY - The utility model claims a petroleum heater, comprising a heating tank, and a heat exchange tube and a graphene heating sheet assembly fixed in the heating tank, the oil inlet end and the oil outlet end of the heat exchange tube pass through the heating tank, the heat exchange tube is formed with multiple U-shaped unit tubes extending along the axial direction of the heating tank in the heating tank, each U-shaped unit pipe along the pipe in the crude oil flow direction sequentially U-shaped unit pipe formed by the pipe group section is matrix; the heating tank is fixedly provided with a V-shaped groove plate below the graphene heating sheet assembly, the groove bottom of the V-shaped groove plate forms a support for the graphene heating sheet. The utility model uses the graphene heating sheet as element for heating heat-conducting oil, the electric heating energy conversion rate is high, compared with the traditional resistance heating model the energy-saving effect is obvious; The graphene heating sheet of the film structure, heating uniformly, large heat exchange area; it is convenient to control the heating temperature, so as to ensure stable crude oil output temperature; no carbonization and power attenuation, long service life.