Low flow electric heater

The utility model relates to an industrial electric heating technical field is a low flow electric heater. Including casing and the electrothermal tube of setting in casing inside, be provided with inlet and liquid outlet on the casing, be provided with the heating wire in the electrothermal tube, it has insulating material to fill between heating wire and the electrothermal tube body, its characterized in that, the casing is double -spiral structure, inlet and liquid outlet lie in the same one end of casing, the one end that the casing is close to liquid outlet and inlet is provided with the process flange, heating wire in the electrothermal tube passes the process flange and is connected with the anti -explosion terminal box. The utility model discloses further increase the heat exchange coefficient of electrothermal tube, improved rate of heating to prolong electric heater's life, made things convenient for fluid and electrothermal tube surface temperature's control moreover. 本实用新型涉及工业电加热技术领域，是种低流量电加热器。包括壳