Optimizing Flare Operation Through Proper Design
WEBOct 1, 2015 · In most flare systems, either a molecular seal (also called a buoyancy seal), or a velocity seal, is used at the base of the flare tip, to ensure a minimum continuous flow of purge gas (Figure 1).
Molecular Seals - AFG Combustion
WEBThe Molecular Seal is located just below the flare tip and has been designed to prevent air ingress to the flare riser thus preventing the formation of an explosive mixture in the system.
Flare and vent disposal systems - PetroWiki
WEBJun 2, 2015 · A flare or vent disposal system collects and discharges gas from atmospheric or pressurized process components to the atmosphere to safe locations for final release during normal operations and abnormal conditions (emergency relief). In vent systems, the gas exiting the system is dispersed in the atmosphere.
Molecular (buoyancy) and Velocity Seals - Methane Flaring Toolkit
WEBFlare seals reduce the amount of purge gas needed to keep the flare system free of air which is a potential explosion risk. Both types of seals are installed below the tip. Molecular or buoyancy seals reduce the purge gas more but are more expensive to install.
WEBA Flare System is an arrangement of piping and specialised equipment that collects hydrocarbon releases from relief valves, blowdown valves, pressure control valves and manual vents and disposes of them by combustion at a remote and safe location.
WEBThese include seals referred to as a flare seal, stack seal, molecular seal, labyrinth seal, or gas barrier. The gas seal is located below the flare tip to impede the flow of air back into the flare stack or flare gas network.
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Molecular Seal
WEBThe Molecular Seal is a purge reduction device which allows the flare system operator to use 98% less purge gas while continually sweeping the system. The savings in daily purge gas consumption over the long run makes for a short payback period on the initial capital investment of the molecular seal.
4.2 Flare Ancillaries - Argo Flare S
WEBMolecular Seal: This diffusion type seal is theoreically** the ultimate purge reduction device and is effectively a pressure vessel installed just below the flare tip. The seal is normally flanged between the flare tip and stack and is designed to prevent air from entering the flare system.
4.1 Flare Process and Operation - Argo Flare S
WEBStarting to become more popular are purge reduction seals for onshore and offshore high pressure flare systems. API 537 provides general guidance on the recommended number of pilot burners required for various flare sizes.
WEBFlare seals reduce the amount of purge gas needed to keep the flare system free of air which is a potential explosion risk. Both types of seals are installed below the tip.