▎ 摘　　要

NOVELTY - The utility model claims a water heater water tank, relating to the field of water heater, comprising a shell, the shell is provided with a liner, and the inner wall of the liner is coated with a layer of graphene coating, the inner liner is provided with a contact base of the graphene heating rod outside the liner; and the inner container located at two sides respectively the graphene heating rod is provided with a water inlet pipe and a water outlet pipe extending out of the shell; the outlet of the water outlet pipe is provided with a graphene ring. The utility model is coated with a layer of graphene coating on the inner wall of the water tank liner of the water heater, replacing the traditional other anti-corrosion layer; it can better protect the metal substrate; it is more corrosion resistant; the graphene heating rod is installed in the liner; there are two ways of direct current and alternating current; the graphene heating rod is more corrosion resistant; and the heating efficiency is higher, more energy-saving, so the service life is longer; the outlet of the water outlet pipe is provided with a graphene ring; it can sterilize and disinfect; and the water is ionized; the water becomes healthy water.