Abstract:
A portable filter cleaning assembly is configured to retain a filter on support rod and allow the filter to spin from a spray of water. The spinning filter releases debris from the filter surface through centrifugal force. The assembly has drainage features to ensure proper drainage of water collected within the interior of the filter and enable proper spinning from the spray of water. The assembly utilizes a support rod with a bottom filter retainer that is conical in shape for engaging with the filter aperture. The bottom filter retainer may further have a bearing that enables the filter to rotate freely about the rod with very little force. The assembly may include a stand for securing the support rod on a hard surface, such as concrete or on an uneven lawn surface.
Abstract:
A hydroclone comprising: a tank (12) including a fluid inlet (14), a filtered fluid outlet (16) and an inner peripheral wall (22) enclosing at least one chamber (24); a filter assembly (26) located within the chamber (24) and comprising a circular filter screen (27) centered about an axis (X); and a cleaning assembly (48) comprising at least one cleaning member (52) biased against and adapted to rotate about the periphery (29) of the filter screen (27); and at least one of: a) the filter screen (27) is reversibly deformable a radial distance (D) of from 0.1 to 10 times the average pore size by the cleaning member (52) biased against the periphery (29) of the filter screen (27); and b) a compressive member (58) providing a continuous radially inward force that biases the cleaning member (52) against the periphery (29) of the filter screen (27).
Abstract:
This invention is on water treatment filtering equipment which supplies water after removing foreign matter included in original water such as underground water. To be more particular, the water treatment filtering equipment according to this invention has a filter installed in the inside of the housing and a blade which automatically rotates by the pressure of the inflown original water installed in the outside of said filter so that said blade may drop and remove foreign matter while rotating when original water passes through said filter.
Abstract:
A filtering system that may include a backwashing unit that is arranged to clean the filter when the filtering system operates in a backwashing mode; a first pipe that is couples the first auxiliary input to a first auxiliary output of the at least one auxiliary outputs; a second pipe that couples the second auxiliary input to a second auxiliary output of the at least one auxiliary output; wherein at least one of the first and second pipe comprises an external portion that is external to the input chamber, the intermediate chamber and the backwash chamber; wherein when the filtering system operates at the backwash mode, the backwash chamber maintains a backwash pressure that is lower than (a) an input chamber pressure that is maintained in the input chamber, and (b) an intermediate chamber pressure that is maintained within the filter.
Abstract:
A voraxial separation system having an auxiliary filter is disclosed for separating flowable composite media into components. The voraxial separation system receives a flowing stream of composite media and utilizes centrifugal force to separate the stream into component radial layers according to specific gravity whereafter one or more radial layers may be extracted from the stream. An auxiliary filtration apparatus includes a conduit having a flowable media input, a generally cylindrical filter disposed within the conduit, and filtered and unfiltered media outlets. An elongate spray tube is disposed within the tubular filter substantially adjacent to the radially inner surface of the filter. The spray tube is fluidly connected to a pressurized fluid source and defines a plurality of spray outlets disposed in a direction radially outward so as to direct pressurized fluid onto the cylindrical filter from the filter interior thereof to clean the filter of accumulated substances. A rotational drive system provides powered rotation of the spray tube, and a spectrophotometer assembly monitors the accumulation of component medium on the filter and adjusts rotation speed of the spray tube in response to filter loading.
Abstract:
A voraxial separation system having an auxiliary filter is disclosed for separating flowable composite media into components. The voraxial separation system receives a flowing stream of composite media and utilizes centrifugal force to separate the stream into component radial layers according to specific gravity whereafter one or more radial layers may be extracted from the stream. An auxiliary filtration apparatus includes a conduit having a flowable media input, a generally cylindrical filter disposed within the conduit, and filtered and unfiltered media outlets. An elongate spray tube is disposed within the tubular filter substantially adjacent to the radially inner surface of the filter. The spray tube is fluidly connected to a pressurized fluid source and defines a plurality of spray outlets disposed in a direction radially outward so as to direct pressurized fluid onto the cylindrical filter from the filter interior thereof to clean the filter of accumulated substances. A rotational drive system provides powered rotation of the spray tube, and a spectrophotometer assembly monitors the accumulation of component medium on the filter and adjusts rotation speed of the spray tube in response to filter loading.
Abstract:
A filter unit for filtering particulates and other foreign matter from a fluid supply, comprising a filtering chamber. At least a portion of an exterior of the filtering chamber being provided with a mesh through which fluid may enter the filtering chamber in use. The mesh being sized to filter particulates and other foreign matter from the fluid. The filter unit further comprising an outlet through which filtered fluid exits the filter unit, and a rotatable member located within the filtering chamber, the rotatable member having at least one outlet spaced from an internal face of a mesh. The axis of rotation of the rotatable member being such that the at least one outlet traverses at least a substantial portion of the internal face of a mesh. The filter unit further comprising a dedicated pump having an inlet communicating with the filtering chamber and an outlet communicating solely with the rotatable member such that operation of the pump causes filtered fluid from within the filtering chamber to be pumped through the rotatable member to exit the at least one outlet and impinge on the internal face of the mesh so as to cause particulates and other foreign matter located on an external face of the mesh to be dislodged.
Abstract:
A filter unit for filtering particulates and other foreign matter from a water supply, comprising a filtering chamber. At least a portion of an exterior of the filtering chamber being provided with filtering chamber in use. The mesh being sized to filter particulates and other foreign matter from the water. The filter unit further comprising an outlet through which filtered water exits the filter unit, and a rotatable member located within the filtering chamber, the rotatable member having at least one outlet spaced from an internal face of a mesh. The axis of rotation of the rotatable member being such that the at least one outlet traverses at least a substantial portion of the internal face of a mesh. The filter unit further comprising a dedicated pump having an inlet communicating with the filtering chamber and an outlet communicating solely with the rotatable member such that operation of the pump causes filtered water from within the filtering chamber to be pumped through the rotatable member to exit the at least one outlet and impinge on the internal face of the mesh so as to cause particulates and other foreign matter located on an external face of the mesh to be dislodged.
Abstract:
An apparatus for enhanced cleaning of a filter unit, said apparatus being comprised of a closed reaction chamber body (25) adapted to receive and store in a reaction chamber (35) back-flush fluid, preferably filtrate, further adapted with access porting to chemically treat (30) and monitor (34) and to thermally (32) treat and monitor (33) said stored fluid and further adapted to receive (28) and vent (29) compressed gas into the gravitationally oriented upper section of the reaction chamber (35). Said reaction chamber (35) being further provided therein with conveyance tubing (8) so configured to facilitate hydraulic communication between the gravitationally oriented lower section of the reaction chamber (35) and a back-flush fluid inlet port of the filter unit being served. The conveyance tubes (8) and the reaction chamber (35) being co-oriented in a substantially vertical direction. The conveyance tubes (8) being so configured that the lower ends (26) are open to the reaction chamber while the upper sections pass through the sealing plate (17) at the top of the reaction chamber (35) and direct toward the back-flush inlet port of the filter unit. Said conveyance tubes (8) being further provided with orifice perforations (27) in the area proximate to the upper section of the reaction chamber (35). Said orifice perforations (27) therein provided to facilitate back flush enhancement of the chemically and thermally treated back flush fluid by means of atomization and entrainment of the high pressure gas bled from the reaction chamber (35) into the conveyance tubes (8) antecedent to discharge from the apparatus to the serviced filter unit. Wherein to facilitate back flush cleaning of the serviced filter unit, high pressure gas is admitted into the gas inlet port (28) to pressurize, displace and force the back flush fluid downward in the reaction chamber (35), into the open lower ends (26) of the conveyance tubes (8), upward in the conveyance tubes (8), past the orifice perforations (27),wherein high pressure gas is atomized and entrained and passed onwards from the apparatus to the back flush inlet port of the filter unit.
Abstract:
A filter including a plurality of filter discs each formed with a central opening and disposed in a stack within a filter housing with the side faces of adjacent discs contacting each other for filtering the fluid flowing through the housing from its inlet to its outlet, the filter discs being maintained in a stack by a plurality of axially-extending rods arranged in a circular array around the outer faces of the discs and circumferentially spaced from each other to permit the filter disc stack to be cleaned by passing a cleaning nozzle through the central openings of the filter discs in the stack.