Structure

Single head electric heat pipe typical structure (the most popular structure) and electrothermal tube is the same, consisting of five parts insulator, sealing materials, leads to the bar and filling material, heating wires, a metal protective sleeve, terminal. Spiral electric heating wires and leads to help is located in central metal protective casing and its manufacturing process is the screw type electric heating wire is penetrated through the seamless steel pipe, brass or aluminum, the gap through the manifold filling machine evenly filled both insulation and thermal oxidation medium such as crystalline magnesium oxide (also available alumina or clean quartz sand, etc.). And contracting pipe machine the diameter reduction, the oxide medium density (density reached g / cm3 above), ensure the electric wire is isolated from the air, the center does not occur offset and touching the wall. So. Heat per unit area can be increased by more than ten times. Service life can be improved to more than 10 years. Compared with the same large quantity of electric heating element, tubular electric heating tube can save 5% of electric heating material, and the thermal efficiency can reach more than 90%.