Stainless steel double U-type electric heating tube is made of stainless steel tube as the shell, filled with high-resistance electric heating alloy wire as the heating material, and filled and compacted around the heating wire. It has good insulation performance and uses high-purity magnesium oxide with high thermal conductivity as the filler. This product has the characteristics of high power, high thermal efficiency, and fast heat dissipation.
Double-head electric heating tubes can be divided into the following types according to the use environment:
Used in air: 1. Closed air heating
2. Circulating air heating
3. Special gas heating
Used in liquid: 1. Water heating
2. Oil heating
3. Acid and alkali liquid heating (the heating zone of the electric heating tube should be immersed and not exposed for dry burning)
Precautions for Using Stainless Steel Double U-Type Electric Heating Tube
1. The element is allowed to work under the following conditions:
A. The relative humidity of the air is not more than 95%, and there is no explosive or corrosive gas.
B. The working voltage should not exceed 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 tube should be properly positioned and fixed. The effective heating zone must be completely immersed in liquid or metal solid. Dry burning is strictly prohibited. If scale or carbon deposits are found on the tube surface, they should be cleaned in time before reuse to avoid affecting heat dissipation and shortening service life.
3. When heating fusible metals or solid nitrates, alkalis, asphalt, paraffin, etc., the voltage should be reduced first, and then raised to the rated voltage only after the medium melts.
4. When heating air, the elements should be arranged crosswise and evenly to ensure good heat dissipation.
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