Coanda gas burner apparatus and methods

Details Coanda gas burner apparatus and methods Coanda gas burner apparatus and methods

2011-02-01

2011-02-01

Basichas, Alfred (Department: 3743)

Combustion

Flame holder having protective flame enclosing or flame...

Including means feeding air axially spaced points of the flame

C431S115000, C431S202000, C431S278000, C431S009000

Reexamination Certificate

active

07878798

ABSTRACT:
A gas burner apparatus for discharging a mixture of fuel gas, air and flue gas into a furnace space of a furnace wherein the mixture is burned and flue gas having a low content of nitrous oxides and carbon monoxide is formed is provided. The burner tile includes at least one gas circulation port extending though the wall of the tile. The interior surface of the wall of the tile includes a Coanda surface. Fuel gas and/or flue gas conducted through the gas circulation port follows the path of the Coanda surface which allows more flue gas to be introduced into the stream. The exterior surface of the wall of the tile also includes a Coanda surface for facilitating the creation of a staged combustion zone. Also provided are improved burner tiles, improved gas tips and methods of burning a mixture of air, fuel gas and flue gas in a furnace space.

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