Filtering apparatus

Patent · Wed Jan 01 00:00:00 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 (NETL), Pittsburgh, PA, Morgantown, WV (United States); Ohio Power Company
• Sponsoring Organization: USDOE
• 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

Related Subjects

filtering
apparatus
vertical
vessel
inlet
upper
outlet
enclosure
separated
main
horizontal
tube
sheet
receives
flue
gas
boiler
power
supplies
cleaned
turbines
contains
plurality
particulate-removing
clusters
filter
units
unit
clean-gas
chamber
defined
plate
perforated
auxiliary
tubes
suspended
connected
passing
extending
vertically
circulated
outside
surfaces
particulate
absorbed
pores
pulses
clean
passed
inner
holes
free
bends
aligned
pass
clean gas
tube connected
outside surfaces
outside surface
flue gas
tube sheet
chamber defined
gas chamber
cleaned gas
outlet enclosure
tubes passing
filter unit
vertical vessel
upper outlet
horizontal tube
filtering apparatus
extending vertically
tubes pass
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