▎ 摘　　要

NOVELTY - The system has a chassis top part (4) that is located below a raw oil tank (2) and provided with a mounting groove filled with a graphene heating layer (3). The chassis top part is located on one side wall of the raw oil tank and is welded with a second control box (7). The second control box is internally provided with a transmitter. The transmitter is electrically connected with the grapheme heating layer. The top portion of the second control box is provided with a first control box (6). The first control box is provided with another set of transmitter electrically connected with a temperature sensor (5). The second control box and the first control box are externally connected with a programmable logic controller (PLC) controller through a lead. The PLC controller is composed of a power supply unit, a CPU unit, a target unit and an analog-to-digital (AD) conversion unit. USE - Winter crude oil storage heating system. ADVANTAGE - By using the graphene heating plate to heat the raw oil tank, the pollution problem caused by various pollutants to the environment is avoided. The safety of the crude oil tank is improved. The efficiency of the graphene is higher and more environment-friendly, so as to greatly improve the practicability of the device. By adding the PLC controller and the transmitter, the device can remotely heat the several crude oil tanks operation, to improve the operation convenience to a certain extent, at the same time, the use of the temperature sensor, also makes the user to real-time monitor the temperature of the raw tank, which greatly improves the accuracy of device for monitoring the raw-oil tank temperature. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an operation method of a winter crude oil storage heating system. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a winter crude oil storage heating system. Protection plate (1) Raw oil tank (2) Graphene heating layer (3) Chassis top part (4) Temperature sensor (5) First control box (6) Second control box (7)