Use and maintenance of stainless steel heating tubes

What is a stainless steel electric heating tube?

Stainless steel heating tubes are electric heating elements that are currently widely used in industrial electric heating, auxiliary heating and insulation. Compared with fuel engine heating, they can effectively reduce environmental pollution. The component structure is made of (domestic or imported) stainless steel as the shell, the resistance wire automatically formed by the wire winding machine as the heating element, the high-temperature oxidation powder as the thermal insulation layer, the lead rod, the insulation sealing material and accessories are precisely processed.

Stainless steel electric heating tubes should be stored in a dry warehouse. If the surface is damp due to long-term placement, use a megohmmeter to measure the insulation resistance before use. If it is less than 1 megohm, the electric heating tube can be placed in a drying oven for drying, dehumidifying the magnesium oxide powder, or connecting a low voltage to the heating tube to energize it, which also plays a dehumidifying role.

1. The connection end of the stainless steel electric heating tube 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 waves or gases, the connection part of the electric heating tube should be protected with an insulating sealing device to prevent accidents.

2. For stainless steel electric heating tubes used to heat liquids, the heating area should be completely immersed in the heated liquid to avoid dry burning. The longer the electric heating tube is used, the more oil and scale on its surface should be removed regularly, otherwise the heat transfer performance of the electric heating tube will be reduced and the heat load on the tube surface will exceed the rated allowable limit and be damaged.