IMPROVEMENTS IN METAL-HEATING FURNACES

摘要

The walls of a furnace are water cooled by a wall construction that comprises a pair of closely spaced, parallel plates defining a coolant flow passage. The plates are connected at their opposite ends to headers that place the passage in fluid communication therewith. According to one aspect of the invention the plates are formed as concentric annuli that encircle the furnace interior while the headers are ring headers. According to another aspect of the invention the walls are constructed of modular panels employing the inventive concept.