Gas-assisted flare burner

Details Gas-assisted flare burner Gas-assisted flare burner

2005-01-11

2005-01-11

Basichas, Alfred (Department: 3749)

Combustion

Structural installation

C431S004000, C431S005000, C431S190000

Reexamination Certificate

active

06840760

ABSTRACT:
An improved flare burner for burning combustible gases in petroleum and petrochemical installations. A cylindrical shell has a closed bottom and an open top. A central opening in the bottom is connectable to a source of the gas to be burned. A plurality of linear steam/gas tubes is disposed within the shell, each tube extending to the open end of the shell and also extending through the shell bottom. A lower steam distribution sub-assembly below the shell bottom includes individual steam jets adjacent the ends of the tubes for educting air to the upper end of the tube. A pilot gas sub-assembly for igniting the flare gas is disposed within the shell. Gas to be burned is passed into the interior of the shell through the bottom opening and moves to the open end. Steam injected into the steam/air tubes educts air, and air and steam exit the tubes and mix with the gas to create a combustible mixture. The pilot light assembly provides an open flame which ignites the mixture. The upper end of the shell is reinforced by a rolled collar. An upper steam distribution subassembly within the collar includes a manifold and jets extending beyond the collar to provide additional air and steam for combustion and prevent fires from overflowing the burner and becoming attached to the outside surface of the shell.

REFERENCES:
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patent: 3730673 (1973-05-01), Straitz, III
patent: 3982881 (1976-09-01), Schwartz et al.
patent: 4052142 (1977-10-01), Reed et al.
patent: 4070146 (1978-01-01), Straitz, III
patent: 4565522 (1986-01-01), Schwartz
patent: 4643669 (1987-02-01), Bozai
patent: 4952137 (1990-08-01), Schwartz et al.
patent: 5649820 (1997-07-01), Keller et al.
patent: 5823759 (1998-10-01), Swithenbank

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