Radiation shield for convection section of furnace

摘要

A furnace and a protective screen against radiation are described in which the "line of sight" between a radiant section of the furnace and a convection section positioned above the radiant section is substantially blocked, while at the same time the combustion gases proceeding from the radiant section are permitted to move substantially freely through the screen. The latter may comprise a plurality of alternating bodies. In a preferred embodiment the bodies are alternating plates comprising insulating material. The alternating plates are supported by hangers which are suspended or attached to convection pipes in the convection section. In another embodiment the alternating bodies are pipes or bars. (Fig 1).