Flare gas actuated velocity seal and method of use thereof
AssigneeHoneywell International Inc.
InventorMatthew A. Martin
Life of this patent
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Abstract
A flare gas actuated velocity seal and method of use thereof. The velocity seal is actuated by increases and/or decreases in the pressure of a flare gas flow in a flare stack. The velocity seal is positioned upstream of a burner tip within the gas flow through the stack. The flare gas actuated velocity seal and method of use provide a back-pressure to the flare gas flow that is generally constant in proportion to the pressure of the gas flow preventing air from flowing into the stack even at very low rates.
Claims14
A flare gas actuated velocity seal, comprising:
- a base supporting a plurality of radially converging flaps, said flaps forming a central bore through said seal;
- and
- said flaps pivotally connected to said base and movable between a closed position and an open position.
A method of controlling a flow of a flare gas in a flare stack, said method comprising the steps of:
- providing said flow of said flare gas to a flare gas actuated velocity seal positioned upstream of a burner tip in said flare stack;
- and
- providing a back-pressure with a plurality of radially converging flaps of said velocity seal in generally constant proportion to the pressure of said flare gas preventing air from flowing into said stack.
Dependencies are inferred from the claim text.