What issues should be paid attention to when using flange electric heaters?

What issues should be paid attention to when using flange electric heaters?

1. The electric heating tube should be positioned and fixed, and the effective heating area should be immersed in liquid or metal solid body. Flange heating tubes are strictly prohibited from burning. When scales or carbon-like substances are found on the surface of the tube, they should be cleaned and reused in time to avoid heat dissipation and shorten the service life.

2. When heating fusible metals or solid nitrates, alkalis, asphalt, stone pulling, etc., the voltage should be lowered first, and then raised to the rated voltage after the medium is melted.

The components are allowed to work under the following conditions:

a. The relative humidity of the air does not exceed 95%, and there are no explosive and corrosive gases.

b. The working voltage shall not exceed 1.1 times the estimated value, and the casing shall be effectively grounded.

c. Insulation resistance ≥1mω Dielectric strength: 2kv/1mn

4. The wiring part should be placed outside the insulation layer to avoid contact with corrosive, explosive media and water; the wire should be able to withstand the temperature and heating load of the wiring part for a long time. When tightening the wiring wire of the flange electric heating tube manufacturer, excessive force should be avoided.

The components should be stored in a dry place. If the insulation resistance is less than 1mω due to long-term storage, it can be dried in an oven at about 200°C, or heated with a low-voltage power supply until the insulation resistance is restored.

6. When heating the air, the components should be evenly arranged at the intersection so that the components have good heat dissipation conditions and the flowing air can be fully heated.

When heating salt, protective measures should be considered to prevent explosion.