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US 4,336,017 AGranted
Flare with inwardly directed Coanda nozzle
AssigneeThe British Petroleum Company p.l.c.
InventorDenis H. Desty
Life of this patent
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Abstract
Flare for disposal of combustible gases which includes a Coanda nozzle using high pressure steam. The nozzle has a self adjusting slot and a low pressure fuel gas supply is entrained into the mouth of the nozzle.
Claims10
A flare, comprising:
- a flow tube having an inlet end portion and an outlet end portion;
- said inlet end portion of said flow tube including a Coanda nozzle directed towards the interior of said flow tube;
- means for passing a pressurized gas through said Coanda nozzle and thereafter, together with entrained surrounding gas, along the inside of said flow tube;
- said flow tube transporting the gas flow to the outlet end portion thereof;
- said Coanda nozzle including a circumferentially extending outlet slot through which said pressurized gas flows and a circumferentially extending Coanda surface inside said flow tube contiguous with one edge of said Coanda nozzle outlet slot, the opposite edge of said Coanda nozzle outlet slot comprising a resilient flap arranged to flex in response to the pressure of said pressurized gas passing through said Coanda nozzle outlet slot to vary the effective slot width thereof;
- said resilient flap comprising an annular ring, the outer circumferentially extending edge of which is fixed while the inner circumferentially extending edge thereof is free to move in response to said pressure of said pressurized gas;
- and
- means for directing low pressure gas into the inlet portion of said flow tube, said means located at a predetermined fixed spatial position relative to said Coanda nozzle during use of the flare.
5 more elements
Dependencies are inferred from the claim text.