CATALYTIC CRACKING SPRAY NOZZLE ASSEMBLY WITH LIQUID INLET EXTENSION AND DIFFUSER

摘要

A gas assisted liquid spray nozzle assembly having a nozzle body that defines a mixing zone, a liquid inlet communicating with the mixing zone from a side thereof, and a pressurized gas inlet communicating with the mixing chamber from an upstream end. The liquid inlet includes a liquid inlet extension and diffuser post extending transversely into the mixing zone having a liquid extension passageway and a closed downstream end that defines an internal impingement surface disposed on a central axis of the mixing zone against which liquid impinges and is transversely directed into the mixing zone for atomization by pressurized gas directed centrally through the mixing zone from the gas inlet. The spray nozzle assembly includes a barrel extension zone downstream of said mixing zone with a spray tip for directing the atomized liquid in a predetermined spray pattern.

主权项

1. A gas assisted liquid spray nozzle assembly comprising:
a nozzle body which defines a mixing zone that communicates with an elongated barrel extension zone downstream of the mixing zone, a liquid inlet supported by said nozzle body through which a pressurized liquid stream is directed into said mixing zone, a gas inlet mounted in an upstream end of said nozzle body through which a pressurized gas stream is directed into said mixing chamber along a central axis of the mixing zone, said liquid inlet including a liquid inlet extension and diffuser post extending into said mixing chamber in transverse relation to the central axis thereof, said liquid inlet extension and diffuser post having a liquid extension passageway, said liquid inlet extension and diffuser post defining an internal impingement surface at a downstream end of said extension passageway against which liquid directed through said extension passageway impinges and is transversely directed, said liquid inlet extension and diffuser post being formed with a plurality of discharge orifices communicating with said extension passageway adjacent said impingement surface for directing impinging transversely directed liquid into said mixing zone for intermixing and atomization by pressurized gas directed through said mixing zone and the direction of atomized liquid through said barrel zone, and a spray tip mounted at a downstream end of said barrel zone having a discharge orifice through which atomized liquid directed through said barrel zone is discharged in a predetermined spray pattern.