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Title: Filtering apparatus

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.
Authors:
 [1] ;  [2]
  1. (Monroeville, PA)
  2. (Murrysville, PA)
Publication Date:
OSTI Identifier:
868447
Report Number(s):
US 5143530
DOE Contract Number:
FC21-89MC26042
Resource Type:
Patent
Research Org:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV; Ohio Power Company
Sponsoring Org:
United States Department of Energy
Country of Publication:
United States
Language:
English
Subject:
filtering; apparatus; vertical; vessel; inlet; upper; outlet; enclosure; separated; main; horizontal; tube; sheet; inlet; enclosure; receives; flue; gas; boiler; power; outlet; enclosure; supplies; cleaned; gas; turbines; inlet; enclosure; contains; plurality; particulate-removing; clusters; plurality; filter; units; filter; unit; filter; clean-gas; chamber; defined; plate; perforated; auxiliary; tube; sheet; filter; tubes; suspended; tube; sheet; tube; connected; chamber; passing; cleaned; gas; outlet; enclosure; clusters; suspended; main; tube; sheet; filter; units; extending; vertically; filter; tubes; passing; tube; sheet; outlet; enclosure; flue; gas; circulated; outside; surfaces; filter; tubes; particulate; absorbed; pores; filter; tubes; pulses; clean; filter; tubes; passed; inner; holes; tubes; free; bends; aligned; tubes; pass; clean; gas; clean gas; tube connected; outside surfaces; outside surface; flue gas; flue gas; tube sheet; tube sheet; tube sheet; tube sheet; tube sheet; chamber defined; gas chamber; cleaned gas; cleaned gas; outlet enclosure; outlet enclosure; outlet enclosure; outlet enclosure; tubes passing; filter unit; filter unit; filter unit; vertical vessel; upper outlet; horizontal tube; filtering apparatus; extending vertically; tubes pass /55/