Flow control member for a filter cartridge cleaning system
AssigneeGoyen Controls Co. Pty Ltd.
InventorsJeff Elliott, George Wilson
Life of this patent
Estimating the term…
Abstract
The present invention relates to flow control devices (4) for use with cartridge filter cleaning systems. The flow control device (4) includes a cylindrical portion (8) which extends away from a conical portion (6). When the device (4) is used with a nozzle (9) attached to a blow tube (13) the device (4) will uniformly clean a dirty cartridge filter (5). The advantage of the invention is that the device (4) can be used in the current range of air flow rates and nozzle sizes that are used in the cartridge cleaning industry. Whereas the prior art systems (7) show deficient performance when used across the full range of air flow rates currently applicable in industry.
Claims33
A flow control member for a cartridge cleaning apparatus that utilizes compressed air directed into an open end of a cartridge filter discharged from an air flow nozzle and being adapted to be positioned in a cleaning air flow directed toward the open end, the flow control member comprising:
- a divergent portion mountable to said air flow nozzle and having a crest facing the direction of said air flow and a base opposing the crest;
- and
- a flow redirection surface extending from the base and adapted to redirect said air flow after it has passed over said divergent portion and before it exits the cartridge filter, wherein
- the divergent portion and the flow redirect surface modify the cleaning air flow so that the internal portions of said cartridge are subjected to substantially uniform pressure exerted by said cleaning air flow.
A method of cleaning filter cartridges by means of a cartridge cleaning apparatus directed cleaning air flowing into a filter opening from a clean air side in order to remove particles deposited on an outside of a filter element, thereby cleaning the filter, said cleaning air flowing being discharged initially from an air flow nozzle, said method comprising:
- placing a flow control member mounted to the air flow nozzle in a cleaning air flow path before the flow path reaches an internal filtering surfaces of said filter cartridge;
- and
- providing uniform air pressure along a substantial area of the internal wall of the filter element, said uniform air pressure being produced by the flow control member having a divergent portion and an air flow redirection surface extending from a base of the divergent portion.
A flow control member for a cartridge filter cleaning system, said cleaning system including a source of air under compression and a means to carry said air to a filter element for cleaning purposes, said flow control member comprising:
- a divergent air flow control surface having an end having a crest nearest incoming air flow resulting from said means to carry said air to a filter element for cleaning purposes and an opposing end;
- an air flow redirection surface located in the flow path of said air and extending from said opposing end, wherein said air is directed to act upon the internal surfaces of the filter element;
- and
- wherein the divergent air flow control surface and the air flow redirection surface modify the air flow so that internal portions of said cartridge are subjected to substantially uniform pressure exerted by the air flow.
A flow control member for a cartridge cleaning apparatus that utilizes compressed air directed into an open end of a cartridge filter and being adapted to be positioned in a cleaning air flow directed toward the open end, the flow control member comprising:
- a divergent portion having a crest facing the direction of said air flow and base opposing the crest, the divergent portion further having holes interconnecting a surface of said divergent portion and a cavity located adjacent thereto;
- and
- a flow redirection surface extending from the base and adapted to redirect said air flow after it has passed over siad divergent portion and before it exits the cartridge filter, wherein
- the divergent portion and ther flow redirect surface modify the cleaning air flow so that the internal portions of said cartridge are subjected to substantially uniform pressure exerted by said cleaning air flow.
Dependencies are inferred from the claim text.