Patent ID: 11878259

Abstract:
The invention relates to a pneumatic-hydraulic back-flushing method according to claim 1 and a device for back-flushing fluid filters using an integrated hydro-dynamic cleaning process with a filter element (5) arranged in a housing (1) about a support body (9), wherein the housing (1) is designed in such a manner that a fluid inlet (7) and, preferably on the housing lid (2), a fluid outlet (7) are arranged in such a manner that the fluid flow flows through the filter element (5) from the outside to the inside in the filtering process, such that the support body (9) is closed on both sides and a supply pipe (3) is arranged in the interior of the support body (9) in such a manner that said support body projects from the housing lid (2) into the interior of the fluid filter and is open at the bottom, and said supply pipe (3) is arranged in a fluid guide pipe (4), wherein the fluid guide pipe (4) is closed by a base (6) and a compressed air connection (10) is preferably arranged in the housing lid (2) and the fluid flow in the filter process (16) adopts the direction of flow illustrated (16), wherein the fluid is guided through the filter element (5) and the support body (9) into the fluid guide pipe (4), which is open at the top and closed at the bottom, and is guided into the supply pipe (3), which is open at the bottom, in such a manner that said fluid flows to the fluid outlet (8), and for the cleaning process the fluid inlet (7), the fluid outlet (8) and the compressed air inlet (10) are operated by control elements such that the fluid adopts the direction of flow (17).