Filtering apparatus

Patent · Wed Jan 01 04:00:00 EST 1992

OSTI ID:868447

Haldipur, Gaurang B ^[1]; Dilmore, William J ^[2]

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1. Monroeville, PA
2. Murrysville, PA

A vertical vessel having a lower inlet and an upper outlet enclosure separated by a main horizontal tube sheet. The inlet enclosure receives the flue gas from a boiler of a power system and the outlet enclosure supplies cleaned gas to the turbines. The inlet enclosure contains a plurality of particulate-removing clusters, each having a plurality of filter units. Each filter unit includes a filter clean-gas chamber defined by a plate and a perforated auxiliary tube sheet with filter tubes suspended from each tube sheet and a tube connected to each chamber for passing cleaned gas to the outlet enclosure. The clusters are suspended from the main tube sheet with their filter units extending vertically and the filter tubes passing through the tube sheet and opening in the outlet enclosure. The flue gas is circulated about the outside surfaces of the filter tubes and the particulate is absorbed in the pores of the filter tubes. Pulses to clean the filter tubes are passed through their inner holes through tubes free of bends which are aligned with the tubes that pass the clean gas.

• Research Organization: National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV; Ohio Power Company
• Sponsoring Organization: United States Department of Energy
• DOE Contract Number: FC21-89MC26042
• Assignee: Westinghouse Electric Corp. (Pittsburgh, PA)
• Patent Number(s): US 5143530
• OSTI ID: 868447
• Country of Publication: United States
• Language: English

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absorbed
aligned
apparatus
auxiliary
bends
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circulated
clean
clean gas
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clusters
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contains
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filtering
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flue
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particulate
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receives
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sheet
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upper
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vertical
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vertically
vessel