Equipment for burning combustible constituents in carrier gas - has flow reversal inside furnace and inlet pipe which forms duct to carry gas to chamber entry

摘要

The equipment for burning combustible constituents in a carrier gas, esp, has the gas entering a cylindrical combustion chamber (2) conventionally via swirlers (9) around a pilot burner (15), inside a diffusor cone (10) to maintain axial flow. The other end of the chamber is closed, causing reverse flow along the periphery to an annular orifice with sharp outer edge (7b) at upstream end. Flow then reverses again, through an inner casing (8) forming a chamber-enveloping duct (16), to an axial flue (4). Surrounding t he inner casing is an outer (6) with a flue pipe encircling annular header (11), embodying an inlet pipe (5), Which forms a duct (14) carrying the gas to the chamber entry.