1、 Inspection before starting the electric heating thermal oil furnace:
1. Check whether the electric heating heat transfer oil furnace and its surroundings are clean and free of debris, and whether the furnace body, burner, controller, fire hole, chimney, etc. are normal;
2. Reverse the process equipment and flow, check whether the oil level in the expansion tank is above 1/4-1/2 of the liquid level, and whether the thermometer, pressure gauge, etc. are normal;
3. Connect the power supply of the heating furnace control cabinet, check if the voltage is normal, and check if the indicator lights and various display instruments are normal;
4. Adjust the gas main pressure reducing valve and secondary pressure reducing valve to control the pressure to 0.005 MPa.
2、 Electric heating thermal oil furnace startup:
1. Start the heat transfer oil circulation pump (one in operation and one as backup, follow the water pump operating procedures), and circulate normally for about 0.5 hours after starting the pump to stabilize the pressure;
2. Press the burner start button and observe whether the furnace flame is burning normally. If it does not ignite, the burner should be restarted after troubleshooting.
3、 Shutdown operation of electric heating thermal oil furnace:
1. Normal shutdown
① Gradually reduce the temperature, turn off the burner, and stop combustion;
② Stop the operation of the hot oil circulation pump when the temperature of the hot oil drops below 70 ℃ (follow the operating procedures of the water pump);
③ Turn off the main power and keep a handover record.
2. Emergency shutdown
If the furnace is shut down urgently due to an emergency situation, the burner should be quickly turned off, and the burner should be moved away along the hinge axis of the burner to form a natural ventilation state between the furnace and the chimney, so as to dissipate the heat storage in the furnace and allow the heat transfer oil to cool naturally to prevent overheating.
The above is an introduction to the start-up inspection and shutdown operation of electric heating heat transfer oil furnace. We hope it is helpful to you!