Thermal oil electric heaters adopt closed-loop heat supply, transporting heat energy in liquid phase, with low heat loss, significant energy-saving effect, and good environmental protection performance. Due to the tubular structure, the heating surface is sufficient, giving it a high thermal efficiency.
Now, regarding possible abnormalities during the use of such products, the following analysis is provided:
Abnormality 1: When the current of the circulation pump is lower than normal, the efficiency and flow rate of the circulation pump decrease.
Cause: It may be caused by scaling and blockage in the heating pipeline.
Solution: Clean and remove the blockage.
Abnormality 2: The pump pressure remains unchanged, the current increases, but the flow rate decreases.
Cause: It may be caused by the deterioration of thermal oil, resulting in increased viscosity.
Solution: Replace or regenerate the thermal oil in time, and pay attention to venting.
Abnormality 3: The current value of the circulation pump decreases, and the outlet pump pressure returns to zero, indicating that the pump is running dry without oil supply.
Cause: It may be caused by vaporization of the thermal oil. Identify the cause of vaporization and take corresponding measures.
Solution: If the circulation pump is running dry due to filter blockage, immediately open the bypass to clean the filter;
If it is caused by water contained in newly added thermal oil or gas from water decomposition not being expelled from the system, immediately open the vent valve to release the gas.
Abnormality 4: When the pressure difference across the filter increases and the pump inlet pressure decreases,
Cause: It may be due to filter screen blockage.
Solution: Open the bypass, remove the filter, and clean it.
