Vane diffuser
AssigneeNatco Norway AS
InventorsBjorn Christiansen, Knut Sveberg, Inge Hjelkrem, Dag Kvamsdal
Life of this patent
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Abstract
Vane diffuser for use in separators for separating a liquid phase and/or a particulate material from a gas flow, includes a distribution chamber that communicates with the inlet pipe stub of the separator. A top plate, a bottom plate, and a plurality of curved, parallel vanes together delimit a plurality of diffuser channels. Each of the vanes has a thickness which varies in the flow direction to ensure an even expansion of the cross-sectional area of the diffuser channels, thereby reducing reverse flow along the suction side of the vanes, as occurs with vanes of uniform thickness.
Claims10
Vane diffuser for placement in a separator for separating at least one of a liquid phase and particulate material from a gas flowing through the vane diffuser in a flow direction, the vane diffuser comprising:
- a top plate;
- a bottom plate;
- a plurality of curved, parallel vanes disposed between the top plate and the bottom plate and defining diffuser channels therebetween, each of said vanes having a thickness which increases continuously in the flow direction to a maximum, then continuously decreases resulting in a cross sectional area of the diffuser channels which expands evenly, said diffuser channels leading to an outlet in the flow direction;
- and
- a distribution chamber delimited by the top plate, the bottom plate and the plurality of curved, parallel vanes, the distribution chamber having means for communicating with an inlet pipe stub of the separator to admit the gas into the vane diffuser and the outlet therefrom.
A separator for separating at least one of a liquid phase and particulate material from a gas flowing in a flow direction, the separator comprising:
- a separation tank comprising an inlet pipe stub to admit the flowing gas into the tank, a lower outlet for discharge of a heavier separated fraction, and an upper outlet for discharge of a lighter separated fraction;
- and
- a vane diffuser arranged within the tank for retarding and diverting flowing fluid upon entry into the tank, the vane diffuser comprising:
- a top plate;
- a bottom plate;
- a plurality of curved, parallel vanes disposed between the top plate and the bottom plate and defining diffuser channels therebetween, each of said vanes having a thickness which increases continuously in the flow direction to a maximum, then continuously decreases resulting in a cross sectional area of the diffuser channels which expands evenly, said diffuser channels leading to an outlet from the vane diffuser in the flow direction;
- and
- a distribution chamber delimited by the top plate, the bottom plate and the plurality of curved, parallel vanes, the distribution chamber having means for communicating with the inlet pipe stub of the separator to admit the gas into the vane diffuser and the outlet therefrom.
Dependencies are inferred from the claim text.