CATALYTIC CRACKING SPRAY NOZZLE WITH INTERNAL LIQUID PARTICLE DISPERSION RING

摘要

A gas assisted spray nozzle assembly having a nozzle body in the form of a hollow tubular member, such as a single cylindrical pipe section, which defines a mixing zone and a downstream barrel extension zone. A liquid inlet and an impingement pin are supported by said tubular member in opposed relation to each other at the mixing zone, and a pressurized gas inlet is provided at an upstream end of the tubular member. An annular dispersion ring is fixedly supported within said tubular member downstream of said impingement pin for defining an annular ledge for directing a peripheral portion of pressurized gas stream and liquid atomized in the mixing zone radially inwardly for facilitating continued intermixing of the liquid and pressurized gas stream as they proceed through the barrel zone for discharge from the spray nozzle.

主权项

1. A gas assisted liquid spray nozzle assembly comprising:
a nozzle body in the form of a hollow cylindrical tubular member which defines a cylindrical mixing zone and a cylindrical barrel extension zone downstream of the mixing zone longer in axial length than the mixing zone; a liquid inlet supported by said tubular member through which a pressurized liquid stream is directed into said mixing zone; an impingement pin supported by said tubular member and extending into said mixing zone having an impingement surface in substantial alignment with the liquid inlet against which a liquid stream directed into said mixing zone from said liquid inlet impinges and is transversely directed; a gas inlet mounted in an upstream end of said tubular member through which a pressurized gas stream is directed into said mixing chamber along a central axis of said mixing zone for atomizing the liquid impinging upon said impingement surface and directing atomized liquid through said barrel zone; a spray tip mounted at a downstream end of said tubular member having a discharge orifice through which said atomized liquid from said barrel zone is discharged in a predetermined spray pattern; and an annular dispersion ring fixedly supported within said tubular member downstream of said impingement pin, said dispersion ring defining an annular ledge for directing a peripheral portion of the pressurized gas stream and atomized liquid radially inwardly for facilitating continued intermixing of the liquid and pressurized gas stream as they proceed through the barrel zone for discharge from the spray tip.