| 摘要 |
The invention relates to a device for heating flowable materials, comprising a container (1) or pipe for receiving or conducting the material that is to be heated and a heatable heat transfer element disposed in the container or pipe, said element consisting of steel wool, metal cuttings or expanded metal. The heat transfer element in said device exhibits little flow resistance and rapidly transmits heat to the flowing medium due to the its large surface. According to the method, a band (2) of expanded metal is wound on a heating element (4). |
