Ancillaries

Europem can supply complete flare systems which include knock-out vessels, water seals, molecular seals, conical purge gas seals, pilots and ignition systems. Additionally, Europem has developed a unique ATEX zone O vapour extraction system for use in conjunction with VRU’s, combustors, flares and thermal oxidisers. Vessels Europem supplies the upstream equipment to remove droplets from gases or provide a seal between the flare burner and the waste gas piping in order to prevent air from infiltrating the flare riser and thus prevent flash back. Purge gas is employed to prevent flash back by stopping air ingress to the flare gas header. Molecular seals and also Conical seals are both devices that reduce purge gas flow rates. Conical seals will require a slightly higher purge gas flow rate than a Molecular seal, but have the advantage of a simpler more economic design. This design cannot be blocked by debris, sludge or ice formation and does not put additional load on the flare structure, being integral to the flare riser. Although purge systems are the perfect solution for flash back prevention, the flow of purge gas can always be lost. A water seal can be installed to provide the ultimate barrier to flame propagation upstream in the waste gas piping. Vessels can be supplied either as an integral part of a flare system or as stand alone items. Both vertical, typically integrated with the Flare riser, or horizontal configurations are available. Features Water Seal Vessels equipped with an overflow weir to maintain a minimum water level, anti-pulsation baffles and a dip-pipe with distribution cone forcing the waste gas to flow through the water bath. Molecular Seals are equipped with a riser pipe and cap to either form a layer of purge gas on the top, when the purge gas is lighter than the air, or on the bottom when the purge gas is heavier than the air of the vessel Conical Seals are in fact an inverted conical restriction made as a section of the riser. This restriction will locally induce a higher waste gas velocity which in turn entrains any penetrating air and carries it up to the flare burner. Knock Out Drums contain packing to separate droplets from the waste gas. A liquid level control with automatic purging prevents the vessel from overfilling. Models EP-WS Water Seal Vessel EP-MPRS Molecular Purge Reduction Seal EP-CPRS Conical Purge Reduction Seal EP-KOD Knock-Out Drum