'Wall ring with wall ring heater for axial fans'

摘要

The present invention relates to a wall ring for receiving in particular an axial fan (6), comprising an annular body (1) with a central longitudinal axis (XX) and with a flow inlet opening (2) and a flow outlet opening (3) and in particular with an electric heating element, which is arranged on the annular body (1) at least part of the circumference. On an outer side of the annular body (1), a cover profile (9) of thermally insulating material is at least partially releasably secured, which includes a receiving space for receiving the electric heating element with the annular body (1) in the region of its annular wall (4).