| 摘要 |
The radiant heating pipe (1) has a tubular body (2) having a central portion (8) and a recycle portion (19) that is arranged next to the central portion, where a free longitudinal end (9), opposite to another longitudinal end (3) of the radiant heating pipe is arranged in a wall (4) of an industrial furnace. The free longitudinal end has an opening (7), where an inner wall (21) of the radiant heating pipe is partially covered at the free longitudinal end with a thermal insulation (22). |
