How to prevent carbon deposition of thermal oil in thermal oil heater

1. Design of thermal oil heater

A high-level expansion tank is usually set up to isolate the high-temperature heat carrier from direct contact with the air. The high-level tank can be filled with nitrogen for protection. If the electric heating thermal oil furnace manufacturer does not have nitrogen protection, a certain liquid level should be maintained and a minimum liquid level alarm should be installed.

2. A filter should be installed at the inlet of the circulating pump

A filter should be installed at the inlet of the circulating pump of the thermal oil heater. The filter element material should be able to filter out suspended polymers.

3. Power failure protection of thermal oil heater

In the event of a sudden power failure, effective safety protection measures must be taken to prevent the thermal oil from overheating and the heating surface metal from overheating. The main measures are: (1) Open all furnace doors and quickly remove the fuel in the furnace to allow a large amount of cold air to enter the furnace and quickly reduce the furnace temperature. At the same time, quickly close the main oil outlet valve, open the oil release valve, slowly release the high-temperature oil into the oil storage tank, and let the cold oil in the expansion oil tank slowly flow into the boiler to take away the heat in time; (2) Configure a backup power supply or a backup oil pump driven by a gasoline engine and start it immediately in case of power failure.

4. Regular Testing

The physical and chemical properties of the heat transfer oil should be regularly measured and analyzed to monitor changes in oil quality and analyze the causes of these changes. If any performance indicator of an organic heat transfer medium exceeds a certain range during use, it must be replaced or regenerated; otherwise, it cannot be used further.

5. Replenishing New Oil

Regularly replenishing the heat transfer oil appropriately can keep the residual oil level in the system relatively stable. The added heat transfer oil should be of the same brand from the same manufacturer. Different organic heat transfer media should not be mixed. Never add undehydrated cooling medium directly to a hot-running system. Heat transfer oil added to the boiler must be pre-boiled to remove moisture.