An blast electric heater is an electric heating device that primarily heats a gas stream. The heating element of the blast electric heater is a stainless steel electric heating tube, and the heater inner cavity is provided with a plurality of baffles (baffles) to guide the gas flow direction, prolong the residence time of the gas in the inner cavity, thereby making the gas full Heating, heating the gas evenly, improving heat exchange efficiency. The heating element of the blast-type electric heater is a stainless steel heating tube in which a heating wire is placed in a seamless steel pipe, and the void portion is filled with a magnesium oxide powder having a good thermal conductivity and insulation. When the current passes through the high temperature resistance wire, the generated heat is diffused to the surface of the heating tube by the crystalline magnesium oxide powder, and then transferred to the heated gas to achieve the purpose of heating.
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