06,10,2026 54views
Precautions for Immersion Tube Electric Heater:
1. The component is allowed to operate under the following conditions:
A. The relative humidity of the air is not greater than 95%, and there are no explosive or corrosive gases. (Excluding explosion-proof heaters)
B. The working voltage should not exceed 1.1 times the rated value, and the casing should be effectively grounded.
C. Insulation resistance ≥ 1M Ω, dielectric strength: 2KV/1min.
2. Electric heating tubes should be properly positioned and fixed, and the effective heating area must be completely immersed in liquid or metal solids. Empty burning is strictly prohibited. When scale or carbon deposits are found on the surface of the pipe body, they should be removed and reused in a timely manner to avoid affecting heat dissipation and shortening the service life.
3. When heating molten metals or solid nitrate, alkali, asphalt, paraffin, etc., the operating voltage should be reduced first, and only after the medium melts can it be raised to the rated voltage.
4. When heating air, the components should be arranged in a cross and even manner to provide good heat dissipation conditions, so that the air flowing through can be fully heated.
5. When heating nitrate, safety measures should be considered 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, and excessive force should be avoided when tightening the wiring screws.
7. The components should be stored in a dry place. If the insulation resistance is lower than 1M Ω due to * placement, they can be dried in an oven at around 200 ℃ or heated with reduced voltage until the insulation resistance is restored.
8. The magnesium oxide powder at the outlet of the electric heating tube should be protected from pollutants and moisture infiltration in the usage area to prevent leakage accidents.
