| 摘要 |
<p>High-pressure air is discharged in the form of jets moving at a high velocity from nozzles (32) mounted on a ring manifold (30) that encircles the flare stack (10) at a predetermined distance below the flare tip (12), the upper portion of the flare stack being surrounded by an exterior shield (50) that is provided with internal guide vanes (36) at the top portion and perforated with air passages (52) at the bottom portion. The high-velocity air movement in the annular space creates a low pressure zone that in turn induces a larger volume of air from the atmosphere to enter the annular space between the shield and stack where it rises to the flame zone (58), thereby lifting the flame and enhancing turbulent air, fuel and waste gas mixing in the flame zone to minimize or eliminate smoke.</p> |
