| 摘要 |
The invention relates to a collecting line (1) for tubular reforming furnaces which have, from the inside outward, at least two layers which are formed by an inner insulation layer (6) and a metallic outer tube or support tube (7). The collecting line (1) further comprises a plurality of nozzles via which the reaction tubes of the tubular reforming furnace can be connected to the collecting line. The collecting line (1) has different heat conduction resistances in peripheral direction. These can be realized through different thicknesses (D1, D2) of the insulation layer and/or through differently thermally conductive materials, generally refractory concretes or bricks. The invention further comprises a tubular reforming furnace in which one or more collecting lines (1) according to one of the inventive embodiments are provided. |
