Expandable cage for baghouse filter
AssigneeGeneral Electric Company
InventorTian Xuan Zhang
Life of this patent
Estimating the term…
Abstract
A filter for use in a baghouse. The filter is to be supported by a tubesheet that separates dirty fluid and clean fluid chambers of the baghouse. The filter including a filtration bag that has an open end adjacent to the tubesheet and an encircling sidewall that extends from the open end to a distal end along a direction of a central axis of the filtration bag. The bag sidewall permits passage of fluid there through so that the fluid may pass from the dirty fluid chamber to the clean fluid chamber and blocks passage of at least some particulate material against proceeding to the clean fluid chamber. The filter includes a cage located within the filtration bag. The cage has structure to permit expansion of the cage to increase a cage diameter that forces the bag sidewall taut against the cage.
Claims20
A filter for use in a baghouse for filtering at least some particulate material from fluid, the filter to be supported by a tubesheet separating dirty fluid and clean fluid chambers of the baghouse, the filter including:
- a filtration bag having an open end adjacent to the tubesheet and an encircling sidewall extending from the open end to a distal end along a direction of a central axis of the filtration bag, the bag sidewall permitting passage of fluid there through so that the fluid may pass from the dirty fluid chamber to the clean fluid chamber and blocking passage of at least some particulate material against proceeding to the clean fluid chamber;
- and
- a cage located within the filtration bag, the cage having structure to permit expansion of the cage to increase a cage diameter that forces the bag sidewall taut against the cage.
A filter as set forth in claim 4, wherein the side of cage is made resilient material that can move at least partially toward a sheet-like condition too increase the cage cylindrical diameter.
A baghouse filter assembly for filtering at least some particulate material from fluid, the arrangement including:
- a housing including a dirty fluid chamber and a clean fluid chamber separated by a tubesheet, the tubesheet having at least one aperture there through;
- and
- a filter supported by the tubesheet, the filter including:
- a filtration bag having an open end adjacent to the tubesheet and an encircling sidewall extending from the open end to a distal end along a direction of a central axis of the filtration bag, the bag sidewall permitting passage of fluid there through so that the fluid may pass from the dirty fluid chamber to the clean fluid chamber and blocking passage of at least some particulate material against proceeding to the clean fluid chamber;
- and
- a cage located within the filtration bag, the cage having structure to permit expansion of the cage to increase a cage diameter that forces the bag sidewall taut against the cage.
Dependencies are inferred from the claim text.