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Free Jet Burner / Low NOx
Ground Flares
Sulfur Equipment
Replacement Flare Tips / Parts
 
 
 
 


Types of Flares



Zeeco's UF style flare tip assembly utilizes a unique arrangement of proprietary flame stabilization tabs to ensure stable and high efficiency flaring through the entire design range of flows, from maximum emergency flaring to purge gas flow rates. The flame stabilization tabs work in conjunction with constantly burning pilot assemblies to ensure ignition of the waste gas. The flame stabilization tabs create a low pressure zone at the perimeter of the flare tip gas exit point, providing an area of slow moving gases that can be easily ignited by the pilot assembly. Zeeco flame stabilization tabs are unique, fully investment cast assemblies, mounted to the flare barrel using plug welds, to avoid stress risers and to eliminate cracking associated with linear welding in high heat zones.

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Zeeco's QFS series flare tip provides control of smoke in a flare system at an affordable cost. The design of the QFS steam injection nozzle minimizes the noise associated with steam injection. The proprietary QFS steam nozzle is designed using a number of injection ports to successfully reduce the steam injection noise to well below that of conventional steam assisted flare tips.

Injection of steam at the flare tip exit point provides more than smokeless performance. The steam also "shapes" the flare flame in high wind conditions, eliminating the downwind flame impingement seen on many non-assisted flare tips. The steam also assists in lowering the radiation level at grade, by lowering the emissivity of the flare flame, and by providing an upward vector to stand the flame up in a cross wind.

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In Zeeco's HCS flare tip design, the steam injection manifold is moved from the top of the flare tip to a point near the base of the flare tip. This moves the steam injection nozzles away from the heat of the flare flame, and into a position where a noise shroud can be engineered to muffle the jet noise from the steam injection. The HCS flare tip uses a system of internal steam / air tubes to route an air / steam mixture from the steam injection manifold up the interior of the flare tip and discharge this steam / air mixture directly into the gas column as it exits the flare tip. The steam and air mixture is injected directly into the flare gas at numerous points across the diameter of the flare tip, and not just from the perimeter as in most standard steam flare designs. The design of the steam injection nozzles and internal steam / air tubes ensures the highest possible steam efficiency in controlling smoke. The HCS flare tip design can reduce the required amount of steam for a particular smokeless rate by 35-40% below that required in a standard steam flare tip with upper steam injection only.

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The Zeeco UFA flare tip incorporates a proprietary design that splits the waste gas stream into several smaller streams at the top of the flare to increase the gas / air contact surface area and promote better mixing. This key design feature maximizes the waste gas / assist air mixing while minimizing the amount of forced air required and resultant blower horsepower. Forced air from the blowers and gas from the flare header are routed separately from the base of the flare stack to the top of the flare. At no point do the air and gas mix prior to leaving the flare tip, ensuring the safety of the system. In addition, with this design concept, any Zeeco UFA air assisted flare can operate without the blowers being on and provide for safe disposal of the waste gases in the event of a power outage. The Series UFA flare tip produces a superior quality flame, which stays erect during all atmospheric and flow conditions. Flame lick on the exterior of the flare and burnback inside the flare tip, are virtually eliminated by the forced air from the blowers, which create a strong upward velocity, making the impact from the wind minimal in shaping or moving the flame. The forced air also shortens the flame length and reduces radiation at grade by ensuring a very aerated mixture at the exit of the flare tip.

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Zeeco's MP Multi-Point elevated flare breaks the incoming gas into multiple smaller fires and uses the inherent energy in the gas stream to inspirate air and to produce a smokeless flame. This type of system has been used since approximately 1972 for very large smokeless capacities. Dependent on the gas being burned, this type of system typically requires the use of staging valves and multiple burner tips to ensure smokeless burning under all flow conditions. This system is designed to use NO additional utilities to achieve smokeless burning.

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Zeeco's MP Multi-Point ground flare breaks the incoming gas into multiple smaller fires and uses the inherent energy in the gas stream to inspirate air and to produce a smokeless flame. The unit can be designed with a radiation fence to limit radiation or visible flame outside the burner area. This type of system has been used since approximately 1972 for very large smokeless capacities of very heavy gases. Dependent on the gas being burned, this type of system typically requires the use of staging valves and multiple burner tips to ensure smokeless burning under all flow conditions. This system can be designed to use NO additional utilities to achieve smokeless burning.

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Zeeco's MP totally enclosed flares are designed to operate in close proximity to buildings, foliage, vehicles, homes and other businesses to destroy a variety of gaseous wastes. These wastes are commonly found in refineries, chemical plants, pipelines, LPG & LNG facilities, landfill sites, waste water treatment facilities, coal gasification process, food processing plants and loading terminals. Zeeco enclosed flares operate with no visible flame, no thermal radiation and low noise levels. Each system is custom designed to meet specific operating conditions, including smokeless burning at high turndown ratios.

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The Zeeco "Medusa" Sonic Multi-Jet flare tip uses the pressure of the flared gas to produce a very stiff, low emissivity, smokeless flame. The gas is broken into multiple exit points and each point inspirates large quantities of air to reduce the flame temperature and to ensure quicker mixing of the hydrocarbons with air for combustion. This design of flare tip has a much shorter flame length, a flame that is much more resistant to wind deflection, and a much lower emissive value for radiation calculations. It also has a very long service life. The flare tip is made from multiple nozzles, so the wind passes through the tip, essentially eliminating flame pulldown.

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Zeeco, Inc.  22151 East 91st Street  Broken Arrow, Oklahoma USA 74014  Ph: +1.918.258.8551  Fax: +1.918.251.5519  Email: sales@zeeco.com