What are the general precautions for the use of electric heating radiant element?
1. The radiant heating element should be well positioned and fixed, and the effective heating area must be completely immersed in liquid or metal solid, and empty burning is strictly prohibited. When there is scale or carbon on the surface of the element, it should be cleaned up in time to avoid heat dissipation and shorten the service life.
2. When heating fusible metals or solid nitrates, alkalis, bitumen, paraffin, etc., the operating voltage should be lowered first, and then rise to the rated voltage after the medium is melted.
3. When heating the air, the components should be staggered and evenly arranged, so that the components have good heat dissipation conditions, so that the passing air can be fully heated.
4. When heating nitrate, pay attention to safety measures to prevent explosion accidents.
5. The wiring part should be placed outside the insulation layer to avoid contact with corrosive, explosive media and moisture; the lead wire should be able to withstand the temperature and heating load of the wiring part for a long time, and excessive force should be avoided when the wiring screws are tightened.
6. The components should be stored in a dry place. If they are placed for a long time and the insulation resistance is less than 1MΩ, they can be dried at about 200°C, or the voltage can be reduced and heated until the insulation resistance is restored.
7. The magnesium oxide powder at the outlet end of the radiant heating element prevents pollutants from infiltrating with water in the use place to prevent leakage accidents.
