- Electric heating tube usage, maintenance, precautions, and working principle
- Clicks: 375 Published: [2013-02-27]
Electric Heating Tube Usage, Maintenance, Precautions, and Working Principle:
1. In the outline dimension drawing, dimension "B" must be fully immersed in oil to avoid burning the element. The heated oil should be non-corrosive.
2. The working liquid level of SRY3 type must be below the fastener and above the dimension line "B".
3. When melting solid oils such as asphalt and paraffin, reduce the voltage during use, and then increase to the rated voltage after melting. This prevents concentrated power from reducing the element's service life.
4. If carbon deposits are found on the tube surface, they must be completely removed before reuse to avoid reduced efficiency or even burning out the element.
5. The element should be stored in a dry place. If the insulation resistance drops below 1 megohm due to long-term storage, it can be dried in an oven at about 200°C for several hours (or pass low voltage through the element for several hours) to restore the insulation resistance.
Working Principle of Electric Heating Tube
High-temperature resistance wires are evenly distributed inside a seamless stainless steel tube resistant to high temperatures. The gaps are densely filled with crystalline magnesium oxide powder, which has good thermal conductivity and insulation properties. This structure is not only advanced and thermally efficient but also provides uniform heating. When current passes through the high-temperature resistance wires, the generated heat diffuses through the crystalline magnesium oxide powder to the metal tube surface and then transfers to the heated object or air, achieving the purpose of heating.
