▎ 摘　　要

NOVELTY - The utility model claims a tail gas heater technology field, especially claims a graphene automobile tail gas water heating device. through the air interface are connected in turn, the heater main body and air outlet socket; top end of the heater main body is provided with a water inlet pipe and a water outlet pipe; the heater on the inner wall surface of the main body is provided with a spiral coil pipe, the coil pipe is coated on the surface of graphene radiating coating; further silencing device is set in the cavity in the centre of the heater main body; one end of the silencing device is connected with an air inlet interface, the other end is connected with the air outlet interface; the graphene automobile tail gas water heating device with convenient detachment and installation, suitable for carriage of some cold area in winter.