General Precautions For The Use Of Heating Elements
Today, Jaye heater technology introduces you to the general use precautions of heating elements, and provides a reference for everyone to use heating elements to avoid damage to the product and cause danger.
1. The element are allowed to work under the following conditions:
A. The relative humidity of the air is not more than 95%, and there is no explosive and corrosive gas. (Except for explosion-proof heaters)
B. The working voltage should not be greater than 1.1 times the rated value, and the shell should be effectively grounded.
C. Insulation resistance≥1MΩ Dielectric strength: 2KV/1min.
2. The electric 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 it is found that there is scale or carbon on the surface of the pipe body, it should be cleaned up and used in time, so as not to affect the heat dissipation and shorten the service life.
3. When heating fusible metals or solid nitrates, alkalis, bitumen, paraffin, etc., the operating voltage should be lowered first, and the voltage can be increased to the rated voltage after the medium is melted.
4. When heating the air, the element should be arranged crosswise and evenly, so that the element have good heat dissipation conditions, so that the air flowing through can be fully heated.
5. Safety measures should be considered when heating nitrate to prevent explosion accidents.
6. 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.
7. The element should be stored in a dry place. If the insulation resistance is lower than 1MΩ due to long-term storage, they can be dried in an oven at about 2 ℃, or the voltage can be reduced and the insulation resistance can be heated until the insulation resistance is restored.
8. The magnesium oxide powder at the outlet end of the electric heating element should avoid the infiltration of pollutants and moisture in the place of use to prevent leakage accidents.
