SPRAY NOZZLES

A spray nozzle for discharging at least one fluid in a spray pattern into a fluid stream in a vessel, such as an atomized mixture of oil and steam in a fluidic catalytic cracking unit, wherein the nozzle alters the flow patte rns of the fluid stream in the vicinity of the nozzle to inhibit erosion o...

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Bibliographische Detailangaben
Hauptverfasser:	DZIADZIO, DOUGLAS J, DELESDERNIER, DANIEL T, BETSOLD, MATTHEW P, BASSETT, THOMAS A, PULASKI, JOHN D
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES NOZZLES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING
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Beschreibung
Zusammenfassung:	A spray nozzle for discharging at least one fluid in a spray pattern into a fluid stream in a vessel, such as an atomized mixture of oil and steam in a fluidic catalytic cracking unit, wherein the nozzle alters the flow patte rns of the fluid stream in the vicinity of the nozzle to inhibit erosion of the nozzle and maintain the spray pattern. The nozzle comprises an inlet mem ber defining at least one inlet conduit and an outlet member in fluid commun ication with the inlet member. The outlet member includes an exterior surfac e and a plurality of bosses angularly spaced relative to each other about an axis of the outlet, each boss defining an outlet aperture in fluid communic ation with the at least one inlet conduit having a length (L) and a diameter (D) and an axially extending wall, wherein the axially extending wall exten ds outwardly a length (X) greater than about 1/8 inch relative to the exteri or surface and L/D is at least about 1/2.