Patent ID: 7967600

Claim:
A flare apparatus comprising: a plurality of flare structures for burning a combustible gas, comprising: an outer member having first and second ends, the second end defining an exit opening; and an inner member having an inlet and an outlet, at least a portion of the inner member being disposed in the outer member to define an annular gas passage therebetween, the inner member outlet being positioned below the exit opening of the outer member; a plenum for receiving the combustible gas from a combustible gas source and communicating all of the combustible gas to the annular gas passages in the flare structures, the inner member extending from an exterior of the plenum through a plenum wall and into the outer member, the inner member having a substantially straight longitudinal central axis from the plenum wall through which it passes to the inner member outlet; and steam injectors for injecting steam into the inner member inlet of each inner member at a rate sufficient to draw air from the atmosphere outside the plenum into the inner member, and move the air through the inner member wherein an air/steam mixture exits the inner member outlet into the outer member and the air/steam mixture mixes with the combustible gas from the annular gas passage in the outer member above the inner member outlet, and the combustible gas and air/steam mixture exits the outer member through the exit opening for burning, wherein the exit openings of each flare structure are spaced apart such that each flare structure has an individual flame thereabove, and wherein air is entrained into each individual flame.