The invention relates to a candle filter element for installation in a pressure vessel or for implementation in a tank or basin open to atmosphere. Main parts of the candle filter element are a fixing device for the connection to the housing, a coupling part to connect the support body with the fixing device, a support body for the filter material with integrated dip channel and a bottom part.

The invention relates to a candle filter device, primarily for filtration of solids from liquids, and containing one or more candle filter elements and the process of operating the same.

The invention relates to a candle filter device, primarily for filtration of solids from liquids, and containing one or more candle filter elements and the process of operating the same.

Aspects of the present disclosure relate to an apparatus for filtering a fluid. One exemplary aspect including a casing having an interior cavity and extending between a fluid inlet and a fluid outlet at opposed ends thereof, a tube sheet assembly spanning the interior cavity the tube sheet assembly having a plurality bores therethrough and a plurality of filter media tubes each extending from one of the plurality of bores in the tube sheet assembly. In some exemplary aspects, the tube sheet assembly may comprise a plurality of retaining plates sandwiched together with a tube sheet plate. In some exemplary aspects, the apparatus may further comprise at least one restrictor plate adapted to obstruct at least one of the plurality of bores of the tube sheet.

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 io 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 zo compressed air inlet (10) are operated by control elements such that the fluid adopts the direction of flow (17).

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 io 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 zo compressed air inlet (10) are operated by control elements such that the fluid adopts the direction of flow (17).

A filter assembly includes a ring of filter media, a first end cap, a second end cap, a first seal, and a second seal. The first end cap is coupled to a first end of the filter media. The second end cap is coupled to a second end of the filter media and includes (i) a radially extending portion having a first opening and (ii) a first axially extending portion having a stepped ledge defining a first inner diameter. The first seal is supported by the second end cap and includes a second opening defining a second inner diameter that is less than the first inner diameter. The second seal is supported by the second end cap and includes a third opening defining a third inner diameter that is greater than the first and second inner diameters. The stepped ledge is disposed between the first seal and the second seal.

A filter assembly includes a ring of filter media, a first end cap, a second end cap, a first seal, and a second seal. The first end cap is coupled to a first end of the filter media. The second end cap is coupled to a second end of the filter media and includes (i) a radially extending portion having a first opening and (ii) a first axially extending portion having a stepped ledge defining a first inner diameter. The first seal is supported by the second end cap and includes a second opening defining a second inner diameter that is less than the first inner diameter. The second seal is supported by the second end cap and includes a third opening defining a third inner diameter that is greater than the first and second inner diameters. The stepped ledge is disposed between the first seal and the second seal.

A water purifier structure includes a container assembly and a buffer unit mounted in the container assembly. The container assembly includes a housing and a cap unit. The housing has a first receiving section and a second receiving section. The second receiving section of the housing is provided with a retaining portion. The buffer unit is mounted in the second receiving section of the housing and includes a positioning ring secured in the retaining portion of the housing, and a cushioning member mounted in the positioning ring. The cushioning member is elastically movable in the positioning ring. When the cushioning member is compressed by a force, the cushioning member is contracted and elastically deformed toward the second receiving section of the housing, to form a buffering force.

A water purifier structure includes a container assembly and a buffer unit mounted in the container assembly. The container assembly includes a housing and a cap unit. The housing has a first receiving section and a second receiving section. The second receiving section of the housing is provided with a retaining portion. The buffer unit is mounted in the second receiving section of the housing and includes a positioning ring secured in the retaining portion of the housing, and a cushioning member mounted in the positioning ring. The cushioning member is elastically movable in the positioning ring. When the cushioning member is compressed by a force, the cushioning member is contracted and elastically deformed toward the second receiving section of the housing, to form a buffering force.