How to use the electric heating tube safely

The electric heating tube, as an electric heating element that can efficiently convert electrical energy into heat energy, can be used independently or widely applied in various electric heating equipment. When using the electric heating tube, we must pay attention to its working conditions and operation details to ensure its safe operation and an ideal heating effect. It should be particularly noted that when heating substances such as easily meltable metals or solid nitrates, paraffin wax, asphalt, etc., the substances to be heated should be pre-melted first. At this time, the external voltage of the electric heating tube can be appropriately reduced; after the melting is completed, the rated voltage should be restored. In addition, when the electric heating tube is used to heat substances such as nitrates that may cause explosion accidents, sufficient safety precautions must be taken.

When using an electric heating tube for air heating, it is necessary to ensure that the electric heating tube is arranged evenly. Such a layout not only provides sufficient and uniform heat dissipation space for the electric heating tube but also facilitates the smooth flow of air, thus significantly improving the heating efficiency of the electric heating tube.

The gaps inside the electric heating tube are filled with magnesium oxide sand. However, the magnesium oxide sand at the outlet end of the electric heating tube may be contaminated due to the infiltration of impurities and moisture. Therefore, during operation, close attention should be paid to the condition of the outlet end of the electric heating tube to prevent the occurrence of electric leakage accidents.

In addition, the storage location of the electric heating tube must be kept dry and have an appropriate insulation resistance. If it is found that the insulation resistance of the storage environment is too low, it can be used after being energized at a low voltage for restoration first.

Before use, the electric heating tube should be properly fixed, and it is necessary to ensure that the wiring part is located outside the thermal insulation layer. At the same time, avoid contact with corrosive, explosive media and water.

Due to the differences in various application environments of the electric heating tube, there are different operation requirements and matters needing attention. Users should master the relevant key points according to their actual usage situations in a targeted manner to ensure that the electric heating tube can achieve the best working performance.