Heat transfer oil system

2. Start the heat transfer oil circulation pump to circulate the heat transfer oil in the system in a cold state for at least half an hour; once the heat transfer oil has fully circulated throughout the system, start the electric heating furnace. 3. Heat up to 50°C at a rate of less than 20°C per hour, and maintain this temperature for 2 hours in a cyclic manner ； Then heat at a rate of less than 15°C per hour to 80°C, and maintain this temperature for 3 hours in a cyclic manner ； Then raise the temperature to 100°C at a rate of less than 10°C per hour. 4. Once the temperature of the heat transfer oil reaches 100°C, the system maintains this temperature and enters the dehydration and venting stage; the temperature of the heat transfer oil must not exceed 130°C (Note: The completion of the degassing process is indicated by the stabilization of the pressure at the outlet of the hot oil circulation pump when the oil temperature is between 120–130°C). 5. After the previous stage is completed, the temperature is raised at a rate of no more than 2°C per hour until it reaches 150°C; this stage should last for at least 10 hours, and during this time the system is in the exhaust phase. 6. Once the temperature of the heat transfer oil reaches 150°C, the system begins to raise the temperature at a rate of no more than 12°C per hour until it reaches 180°C, at which point the heat transfer oil is ready for use.

The new oil manufacturer was called in last.

As already mentioned, there is no need to repeat it; the key point is to maintain a constant temperature of 100–105 degrees during the degassing and dehydration phase. It is essential to closely monitor fluctuations in the liquid level in the high-level tank to prevent boiling and oil spillage. Keeping the furnace temperature stable, and ensuring that the heat transfer oil pump operates properly for circulation, is necessary in order to carry out degassing, dehydration, and removal of light components. Only when the pump pressure remains stable can the temperature be increased to continue the process of heating, dehydration, and gas removal.