Gas assist assembly for use with a waste gas flare stack

摘要

A gas assist flare tip for enhancing smokeless combustion of a flare gas. The assist tip which has a shroud positioned on a flare stack, the shroud having an outer annular portion and an inner tubular portion which fits over the riser. There is an annular plenum which is partially formed by the tubular portion and the outer portion and has an annular vent proximate the open end of the riser. There is at least one air jet eductor having a discharge outlet opening into the plenum.

主权项

1. A gas assist flare tip apparatus for enhancing smokeless combustion of a waste gas issuing from a flare stack riser through an open end comprising:
a first shroud adapted to be positioned on said flare stack, said first shroud including an outer annular portion and an inner tubular portion having a diameter sized to allow said tubular portion to be slidable over said flare stack riser; an annular plenum partially formed by said tubular portion and said outer portion, said plenum having a first annular vent proximate said open end; and at least one air jet eductor having a discharge outlet opening into said plenum, said jet eductor comprising a venturi assembly having a body forming a motive nozzle, said body including a motive gas inlet, a suction inlet, and a venturi diffuser tube, said motive nozzle having a nozzle outlet opening into said diffuser tube, said diffuser tube having a discharge orifice forming said discharge orifice.