Electric heating device with uniform thermal field

The invention relates to an electric heater, in particular to an electric heating device with a uniform thermal field. The electric heating device comprises a plurality of electric heaters, and further comprises a heat preservation box in which the electric heaters are fixed; heat exchange pipes which correspond to the electric heaters one to one and are wound on the electric heaters, so that first pipelines and second pipelines which are alternately distributed can be formed on the electric heaters, and the flow directions of heat exchange media in the first pipelines and the second pipelines are different. According to the electric heating device with the uniform thermal field, the heat exchange coefficient is increased through the spirally-arranged heat exchange pipes, the thermal field is uniform, the temperature of the heat exchange pipes is low, the service life is long, and liquid drainage is easy. 本发明涉及一种电加热器，尤其是一种均匀热场的电加热装置，包括若干电加热器，还包括：保温箱，所述电加热器固定在所述保温箱内；及换热管，所述换热管与所述电加热器一一对应，所述换热管盘绕在所述电加热器上，以能在所述电