Daily production steps of electric heating thermal oil furnace

The routine workshop production process for electric-heated thermal oil heaters generally involves three main steps: pre-startup inspection, startup, and shutdown. Operators must be familiar with each step of the thermal oil explosion-proof electric heater and conduct regular inspections to ensure safe operation.

I. Pre-Startup Inspection

1. Ensure the electric-heated thermal oil heater and its surroundings are clean and free of debris. Inspect the furnace body, burner, controller, flame vent, and chimney for proper function.

2. Reverse-check the process equipment and flow chart, check that the oil level in the expansion tank is above one-quarter to one-half the liquid level, and that the thermometer and pressure gauge are functioning properly.

3. Connect the power supply to the furnace control cabinet and check the voltage, indicators, and displays for proper operation.

4. Adjust the main and secondary gas pressure reducing valves to a pressure of 0.005 MPa.

II. Startup and Operation

1. Start the thermal oil circulation pump (one in operation, one in reserve; refer to the pump operating procedures). After starting the pump, allow it to circulate normally for about 0.5 hours until the pressure stabilizes.

2. Press the burner start button and observe whether the furnace flame is burning normally. If it does not, restart the burner after correcting the problem.

III. Shutdown

1. Normal Shutdown

① Gradually lower the temperature, shut down the burner, and stop combustion.

② When the hot oil temperature drops below 70°C, stop the hot oil circulation pump. ③ Turn off the main power supply and keep a handover record.

2. Emergency Shutdown

If an emergency occurs during production and requires an emergency shutdown, shut down the burner as soon as possible and move it away from the burner hinge to allow natural ventilation between the furnace and the chimney. This will allow the stored heat in the furnace to dissipate and cool the thermal oil naturally, preventing overheating and equipment damage.