Diffuser for separator vessel

Details Diffuser for separator vessel Diffuser for separator vessel

2008-01-08

2008-01-08

Hopkins, Robert A. (Department: 1724)

Gas separation: processes

Deflecting

Centrifugal force

C055S347000, C055S348000, C055S418000, C055S459100, C422S147000, C422S187000

Reexamination Certificate

active

11040898

ABSTRACT:
A third stage separator vessel includes a diffuser to promote uniform flow among an array of separation cyclones in the vessel. The vessel has an inlet to receive a gas stream containing solid particles, and the diffuser is mounted at the inlet so that at least some of the stream passes through the diffuser. In an embodiment, a gap between the diffuser and the inlet causes some of the gas stream to flow over an outer surface of the diffuser. The diffuser preferably includes a perforated plate mounted across a wide end of a frustoconical portion. The plate has a plurality of openings through which the flow passes. The openings in the plate have various sizes and positions to direct a greater amount of flow through radially outward portions of the plate than from a central portion of the plate.

REFERENCES:
patent: 4221655 (1980-09-01), Nakayama et al.
patent: 5681450 (1997-10-01), Chitnis et al.
patent: 5690709 (1997-11-01), Barnes
patent: 6137022 (2000-10-01), Kuechler et al.
patent: 6270544 (2001-08-01), Mencher et al.
patent: 6673133 (2004-01-01), Sechrist et al.
patent: 6797026 (2004-09-01), Sechrist et al.
patent: 7048782 (2006-05-01), Couch et al.
patent: WO 94/13388 (1994-06-01), None

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