Stainless steel electric heating element is widely used in industrial electric heating, auxiliary heating and heat preservation. Compared with traditional fuel heating, it can effectively reduce environmental pollution. The component structure is made of (domestic, imported) stainless steel as the outer shell, automatically formed resistance wire as the heating element, high-temperature MGO powder as the heat-conducting insulating layer, lead rods, insulating sealing materials and accessories through precision processing. So what should be paid attention to before and during using the element?
Maintenance before use:
Stainless steel heating elements should be stored in a dry warehouse. If the surface is damp due to long-term storage, use a megohmmeter to measure the insulation resistance before use. If the insulation resistance is less than 1 megohm, the heating element can be placed in a dry box. Drying, dehumidifying the MGO powder inside, or connecting low voltage to the heating element for a while, also plays the role of dehumidification.
Maintenance in use:
1) For the stainless steel electric heating element used to heat the liquid, the heating area should be completely immersed in the liquid to be heated avoiding dry burning. If the electric heating element has been used for a long time, and the grease and scale on its surface should be removed regularly, otherwise it will reduce the heat transfer performance of the electric heating element and cause the heat load of the element surface to exceed the allowable rating and be damaged.
2) The terminal of the stainless steel electric heating element should be kept clean and dry. Otherwise, it will reduce the insulation performance and be short-circuited. If it is used in an environment with flammable, explosive, chemically corrosive liquid or gas, the electric heating element should be used. The wiring part is protected with an insulating sealing device to prevent accidents.
The above are the suggestions we provide for the use and maintenance of stainless steel heating elements, for your reference.