1. After opening the back cover, find the fixed end of the heating pipe, and then use an open-ended wrench to remove the fixing screw on the power cord of the heating pipe. When disassembling, do not touch the detection circuit of thermostat. The inside is hollow and fragile.

2. Then unscrew the big nut that fixes the heating pipe counterclockwise with a suitable adjustable wrench. If there is no suitable adjustable wrench, you can tighten the pliers with powerful pliers, which will make the moving space smaller and easier to disassemble.

3. After loosening the nut, you can remove the thermostatic probe from the heating tube first, and then remove the whole heating tube.

4. If the new heating pipe has only one sealing ring, first put the sealing ring at the fixed end so that it is located in the heating pot.

Electric heating tube

Electric heating tube is a tubular heating element, which consists of spiral resistance wire of metal tube and crystalline magnesium oxide powder. Electric heating tube products are generally made of high-quality imported stainless steel tubes, imported high-temperature magnesium oxide powder, high-quality heating wires and other materials, and other structural parts are made of stainless steel, with excellent overall performance, long service life and convenient maintenance.

High-temperature resistance wires are evenly distributed in the stainless steel seamless tube, and the gap is filled with crystalline magnesium oxide powder with good thermal conductivity and insulation performance, which not only has advanced structure, but also has high thermal efficiency and uniform heating. When the current passes through the high-temperature resistance wire, the generated heat diffuses to the surface of the metal tube through the magnesium oxide powder, and then is transferred to the heated part or the air to achieve the purpose of heating.

Refer to the above? Baidu encyclopedia-electric heating tube