Multi-purpose self-cleaning filter system
OwnerDaniel L. Hillinventor
Life of this patent
Estimating the term…
Abstract
A vertically oriented vessel has a swirl plate spiraling around its inner wall surface. A nozzle injects unclean liquid onto the lower surface of the swirl plate for deflection of liquid down towards the bottom of the vessel to generate a liquid vortex flowing causing particulates to precipitate. Above the swirl plate, a preferably cylindrical filter element that filters out particulates is cleaned periodically The filter rotates on a shaft so a high pressure sprays of clean process liquid from an array of nozzles juxtaposed with the filter cleans the filter surface as particulates are flushed from the vessel.
Claims13
An enclosed vessel for cleaning unclean liquid comprising:
- said enclosed vessel for cleaning said unclean liquid having a wall with an inner surface;
- means for creating a downwardly directed liquid vortex of said unclean liquid admitted through an inlet nozzle extending through said wall;
- a filter element located in said vessel above said inlet nozzle with said filter element having an exterior surface and an interior surface,
- with said interior surface connected to an outlet for discharging filtered liquid from said vessel;
- means for cleaning said exterior surface of said filter element by spraying clean liquid from at least one high pressure spray nozzle supplied with said clean liquid from a high pressure pump onto said exterior surface;
- and
- wherein said at least one high pressure spray nozzle is different from said inlet nozzle.
An enclosed vessel for cleaning an unclean liquid:
- said enclosed vessel defining an inner space with an inner surface and said enclosed vessel having a wall;
- means for admitting said unclean liquid into said inner space in said vessel through an inlet nozzle extending through said wall;
- means for creating a downwardly directed liquid vortex of said unclean fluid within said inner space;
- an outlet for discharging filtered liquid from said vessel;
- said filter element for cleaning said unclean liquid located in said vessel above said inlet nozzle;
- said filter element having an exterior surface and an interior surface with said interior surface connected to an outlet for discharging a filtered liquid from said vessel;
- a high pressure pump for supplying clean liquid connected to supply clean liquid to an array of high pressure spray nozzles, with said array of high pressure nozzles juxtaposed with said filter element;
- said array of high pressure spray nozzles being connected to direct said clean fluid under high pressure onto said exterior surface of said filter element to clean said exterior surface;
- and
- wherein said array of high pressure nozzles are different from said inlet nozzle.
A method employing an enclosed vessel for containing and for cleaning unclean liquid comprising:
- providing said enclosed vessel for containing and for cleaning said unclean liquid, with said vessel having a wall and with said enclosed vessel having an inner surface;
- providing a means for creating a downwardly directed liquid vortex of said unclean admitted into said enclosed vessel through an inlet nozzle for said unclean liquid with said inlet nozzle projecting through said wall;
- providing a filter element located in said enclosed vessel above said inlet nozzle, with said filter element having an exterior surface and an outlet;
- providing a discharge means coupled to said outlet for discharging filtered clean liquid from said vessel;
- cleaning said exterior surface of said filter element by spraying clean liquid from at least one high pressure spray nozzle supplied with said clean liquid from a high pressure pump onto said exterior surface of said filter element;
- and
- wherein said at least one high pressure spray nozzle is different from said inlet nozzle.
Dependencies are inferred from the claim text.