1. Extend the "eddy current hot film heat exchanger" radially into the bottom of the tank, heat medium (steam) goes through the tube, oil flows from the inner tube of the shell to the inner tube, and the oil suction port of the shell directly connects the medium of the tank.

2. Install a temperature control valve at the steam inlet of the heat exchanger, and control the steam inlet of the heat exchanger by detecting the temperature of the oil outlet with a temperature sensor. The frame heater manufacturer ensures the constant temperature of the oil.

3. The heat exchanger uses high efficiency heat exchange element-eddy heat film tube to keep oil flowing reasonably between the tubes. The thermal efficiency is 3-5 times higher than that of the ordinary heat exchanger. Its heat transfer enhancement mechanism is that the oil fluid is designed to flow in turbulence when flowing on the inner and outer surfaces, which produces strong oscillation and scouring effects, and the flow direction is constantly changing and is tight. The high-temperature oil product fluids on the surface of the pipe wall are constantly replaced, the insulation layer becomes thinner and even damaged, the heat transfer on the metal surface is accelerated, and the micro-eddy current of the fluid is strengthened, so that the thermal diffusion inside the oil product fluid is strengthened. It will not cause local high temperature overheating of the fluid near the surface of the pipe wall, so that the oil can be properly heated and decomposed without coking. It has good heat transfer and no great resistance.