Use and maintenance method of stainless steel electric heating pipe
The stainless steel electric heating tube is made of stainless steel as a sheath, a magnesium oxide rod as an inner core, as a filler for magnesium oxide powder, and a nickel-chromium wire as a heating wire. It can be roughly divided into single-head electric heating tube and double-head electric heating tube.
Use and maintenance of stainless steel electric heating pipe :
1. The terminals of stainless steel electric heating tubes should be kept clean and dry. Otherwise, the insulation performance will be reduced and they will be short-circuited. If an environment with liquids or gases such as chemical corrosion, flammability, and explosion is used, the electric heating tubes should be wired Some parts are strictly protected by insulation sealing devices to prevent accidents. When wiring, use two nuts to tighten them relatively. Do not use too much force to prevent the screws from loosening and damage the heating tube.
2. The heating part of the stainless steel electric heating pipe should be completely immersed in the heating medium to prevent the heat from being dissipated quickly and exceeding the allowable heating temperature to damage the electric heating pipe. In addition, the lead-out part of the wiring should be exposed to the heat insulation layer of the heater or the heater, so that this part should not be overheated and damaged.
3. When the stainless steel electric heating pipe heats some viscose and other substances, such as sodium nitrate, stearic acid, paraffin, etc., the power voltage should be reduced when heating is started to reduce the heat generation of the electric heating pipe. Increase to the rated voltage and heat.
4. The longer the stainless steel electric heating pipe is used, if thicker pipe scale and oil scale are accumulated on the surface, it should be cleaned regularly, otherwise the heat transfer performance of the electric heating pipe will be reduced and the heat load on the pipe surface will be damaged.