Due to the economic impact of shutting a flare down and the requirement for large cranes, users welcome a means to be able to lower the flare tip to grade for maintenance, inspection, or repair activities without ever having to shut the flare down. Similar to a conventional derrick supported flare system, demountable derricks require three or four additional foundations for the derrick legs. The elevated flare tip is mounted on top of a riser supported by a steel trussed (derrick) structure. Demountable Derrickĭemountable derrick type stacks are one type of support system for an elevated flare. Additionally, a single common derrick structure can support multiple flare risers. Derrick flares eliminate process temperature design concerns. Derrick supported flares require three or four additional foundations for the derrick legs, but this is a relatively smaller plot space when compared to a guyed flare of the same height. Derrickĭerrick type stacks are one type of support system for an elevated flare. Guyed derrick flares eliminate concerns associated with process temperature designs. It also requires a smaller, more economical derrick structure compared to a conventional type of derrick supported flare. Similar to a guyed flare, a guy derrick flare requires multiple deadman foundation anchors to anchor the cables to the ground, and therefore this support system necessitates a larger plot space than other support systems. The elevated flare tip is mounted on top of a riser supported by both a steel trussed derrick structure and through a system of cables (guy-wires), typically arranged with a set of three (3) cables at 120 degree angles. Guyed derrick type stacks are one type of support system for an elevated flare. The design of guy-supported flares requires special attention to process temperature conditions in conjunction with multiple levels of guy-wires. Guyed flares require multiple deadman foundation anchors to anchor the cables to the ground, and therefore this support system necessitates a larger plot space than other support systems. The elevated flare tip is mounted on top of a riser supported through a system of cables (guy-wires), typically arranged with a set of three (3) cables at 120 degree angles.
Guy-supported (guyed) type stacks are one type of support system for an elevated flare. Zeeco offers complete skid-mounted and trailer-mounted flare assemblies, as well as aftermarket products, services and engineered solutions. 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. 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. The flame stabilization tabs work in conjunction with constantly burning pilot assemblies to ensure ignition of the waste gas. 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. Utility flare tips are one of the lower capital cost options for safe disposal of waste gases. Utility flare tips are used for combustion of gases that do not produce smoke, gases with a low heating value, or for installations where smokeless combustion of heavy hydrocarbons is not required. Zeeco's non-assisted flares and utility flares are used in applications that don't require smokeless operation, or where smokeless operation can be achieved without the assistance of external steam, air or pressure.