1851 results about "Filter media" patented technology

A regenerative filter that includes a filter housing having inlet and outlet zones; a fluid path provided between the inlet and outlet zones; a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path; and a tube sheet that is supported across the filter housing, that is disposed just before the outlet zone and that provides the support for the plurality of filter elements. The plurality of filter elements are disposed in an array and includes bridging members or elements that connect between adjacent filter elements, and that forms with the filter elements, a closed interstitial space between adjacent filter elements for liquid flow; a nanoscale barrier on interior surfaces, including that of the regenerative media itself, providing a mechanism to disrupt the cell wall of microscopic viruses and organisms.

A regenerative filter that includes a filter housing having inlet and outlet zones; a fluid path provided between the inlet and outlet zones; a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path; and a tube sheet that is supported across the filter housing, that is disposed just before the outlet zone and that provides the support for the plurality of filter elements. The plurality of filter elements are disposed in an array and includes bridging members or elements that connect between adjacent filter elements, and that forms with the filter elements, a closed interstitial space between adjacent filter elements for liquid flow; a nanoscale barrier on interior surfaces, including that of the regenerative media itself, providing a mechanism to disrupt the cell wall of microscopic viruses and organisms.

A water filter system includes an upper chamber removably coupled with a lower chamber. In implementations the lower chamber has a sidewall and a rim wider than the sidewall. A filter medium filters water from the upper to the lower chamber. A seal couples between the chambers and has a circular cross-section and a gap receiving a portion of the sidewall. The seal may also have a cavity receiving the rim. The seal includes one or more arced flaps contacting the upper chamber, a tip of each arced flap defining a circular inner opening of the seal. The seal includes one or more first barbs contacting the upper chamber, each first barb forming a circle. The seal includes one or more second barbs contacting the lower chamber, each second barb forming a circle.

A regenerative filter that includes a filter housing having inlet and outlet zones; a fluid path provided between the inlet and outlet zones; a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path. The filter elements are disposed in an monolithic array. An inlet port arrangement is disposed at the filter housing leading to the inlet zone and is constructed and arranged to direct the fluid path into the filter housing in a manner so as to maintain a controlled turbulence at the inlet zone. The inlet port arrangement comprises a pair of inlet ports that are arranged in juxtaposition at the inlet zone and each having one end where the fluid flow enters. Embodiments that are considered as falling under the scope of the present invention include 1. Single inlet / two or more outlets; 2. Two or more inlets / single outlet, or 3. Two or more inlets and two or more outlets.

An underdrain filtered water collection system includes: a pair of opposing drainpipes, each drainpipe having a plurality of collection drains; and a diffuser screen. The diffuser screen can slide within an outlet in each of the collection drains. A diffuser screen for a pressure vessel containing filter media includes: a screen pipe; a solid plate coupled to a base of the screen pipe; and a winged diffuser arranged around an outer circumference of the solid plate. The winged diffuser includes a plurality of foldable wings. The screen pipe includes a mesh screen having preconfigured interstices therethrough. Feed water flows through the screen pipe where it is directed by an inner surface of the solid plate to flow in a diffused flow through the interstices of the mesh screen and the wings.

A filter system adapted for use with a paint spray booth having an inlet duct and an exhaust duct includes at least one movable cart formed with a housing having one or more surfaces for providing a housing inlet and an housing outlet, at least one filter media element arranged within the housing and positioned between the housing inlet and the housing outlet, and at least one movable device having at least one sealing element. The filter system further includes an inlet hood securely attached to the inlet duct and an outlet hood securely attached to the exhaust duct. The at least one movable cart is configured to move for making contact with the at least one seal between the housing inlet and the inlet hood, and between the housing outlet and the outlet hood.

The invention relates to the technical field of mineralized filter elements, particularly provides a magnesium-containing mineralized filter material, a mineralized filter element and a preparation method of the mineralized filter element, and aims at solving the problem that the service life of the magnesium mineralized filter element is shortened due to the fact that the magnesium ion release speed of the existing magnesium mineralized filter element is too high. The magnesium-containing mineralized filter material comprises modified magnesium ore and modified dolomite, wherein the mass ratio of the modified magnesium ore to the modified dolomite is (0.25-6): 1. By controlling the ratio of the modified magnesium ore to the modified dolomite, the precipitation concentration and speed of magnesium ions in water can be controlled, so that the concentration of the magnesium ions in the water can meet user requirements, and the service life of a magnesium mineralization filter element can be prolonged.

Apparatuses including coalescing filter are discussed and shown. The coalescing filter can optionally include: a filter media; a central core defining a central cavity, the central core positioned within the filter media; a first end cap; a coupling assembly attached to and extending outward from the first end cap, wherein the coupling assembly is configured to couple with a housing to position the coalescing filter within the housing; and a second end cap opposing the first end cap.

A gas filter system including an outer filter element having a first filter medium arranged between a first end cap and a second end cap, and an inner filter element having a second filter medium arranged between a third end cap and a fourth end cap, wherein the first, third and fourth end caps are open, wherein the outer filter element is closed at the second end cap, wherein the first filter medium is arrangeable to surround the second filter medium, such that the outer filter element is sealed against the inner filter element between the second end cap and the fourth end cap.

A filter media comprises a first fiber layer and a second fiber layer positioned downstream of the first fiber layer. The first fiber layer has a first geometric mean fiber diameter of less than 1 μm such that the geometric standard deviation of fiber diameter is greater than 2. The second fiber layer has a second geometric mean fiber diameter of less than 1 μm such that the geometric standard deviation of fiber diameter is less than 2.

The invention relates to a filter element (100) for a separation element (200) for separating at least one liquid from a fluid, in particular a gaseous fluid, having a hollow cylindrical filter medium body (102) which has an end plate (120) with a fluid inlet opening (108) on a first end face (104), wherein the separation element (200) has at least one adapter (10) for receiving the filter element (100). The end plate (120) has a part of a sealing device (16) which can be brought together in an axial direction (50) and which is designed to correspond to another part of the sealing device (16) on the at least one adapter (10). The end plate (120) further has at least a part of a bayonet connection device (30) which is designed to correspond to another part of the bayonet connection device (30) on the at least one adapter (10). The invention further relates to a separation element (200) for a separation device (300) and a separation device (300).

The invention relates to the technical field of industrial water treatment equipment, and discloses an intelligent flushing self-cleaning filter system for industrial water treatment. A dynamic suspended matter monitoring module of the system collects three-dimensional distribution data of deposits on the surface of a filtering medium in real time, and mixed deposition characteristics of suspended solids and oil stains are recognized through a multispectral imaging technology; the differential pressure trigger control module establishes a mapping relation between sediment thickness and fluid resistance according to the three-dimensional distribution data, and generates a cleaning trigger instruction when the real-time differential pressure data reaches a dynamic threshold interval; the spiral trajectory planning module analyzes the cleaning trigger instruction, and generates a composite motion trajectory containing a rotation angular velocity and an axial displacement rate in combination with the current position of a suction nozzle and a filter screen topological structure; the multi-mode flushing execution module synchronously adjusts torque output of a hydraulic motor and linear displacement of a piston cylinder based on the composite motion trail, so that a suction nozzle covers the whole effective filtering area of a filter screen along a spiral path.

An underdrain filtered water collection system includes: a pair of opposing drainpipes, each drainpipe having a plurality of collection drains; and a diffuser screen. The diffuser screen can slide within an outlet in each of the collection drains. A diffuser screen for a pressure vessel containing filter media includes: a screen pipe; a solid plate coupled to a base of the screen pipe; and a winged diffuser arranged around an outer circumference of the solid plate. The winged diffuser includes a plurality of foldable wings. The screen pipe includes a mesh screen having preconfigured interstices therethrough. Feed water flows through the screen pipe where it is directed by an inner surface of the solid plate to flow in a diffused flow through the interstices of the mesh screen and the wings.

The invention relates to a flat filter element and an air filter. A filter medium body of the flat filter element is completely enclosed by a seal. Within the area enclosed by the seal, the filter medium of the filter medium body has an interruption. In the area of ​​the interruption, the filter medium body is closed by a sealing element. The sealing element prevents the passage of unfiltered air from the raw side to the clean side. The sealing element is dome-shaped. In the assembled state, a support finger of a first housing part engages the sealing element from a first side and extends completely through the filter medium body parallel to the main flow direction, so that the support finger protrudes from the filter medium body on a second side. The dome-shaped area of ​​the sealing element spans the protruding support finger.The sealing element is positioned between the support finger of the first housing part and a support element of a second housing part. The support finger and the support element provide support for the filter medium body on both sides by means of the sealing element.

The invention relates to the technical field of water treatment, in particular to a continuous quicksand filter, and provides the continuous quicksand filter aiming at the problems in the prior art, the height position of an air box is reasonably designed, the structure of the air box is optimized, the air stripping effect of compressed air is fully utilized, and an air pipe is prevented from being blocked; the structure of an existing sand washer is improved, the movement path of filter materials in the sand washer is prolonged, collision among the filter materials is increased, the dirty sand cleaning effect is improved, the three-phase separation effect is improved, and the regeneration and reuse rate of the filter materials is increased; meanwhile, the structure of the water distributor is optimized, the water distribution amount in unit cross sectional area is equal, the filtering height of the sand bed is fully utilized, and the filtering effect is improved.

A fluid strainer that is meant to remove debris from the flow of fluid through a strainer and that includes a housing having inlet and outlet ports. The housing defines an interior chamber through which the fluid flows. The fluid strainer including a single strainer basked disposed within the housing chamber. The strainer basket has open input end into which the fluid flows from the housing inlet and opposed side walls that extend in the direction of the fluid. The strainer basked further includes an open output end that is comprised of a pair of tapered output wall that direct the fluid flow to the housing outlet port. The strainer housing also includes a side inlet pipe for receiving filtration media.

The invention relates to a flat filter element comprising multiple filter medium bodies. An inner filter medium body is accommodated in a recess circumferentially bounded by at least one outer filter medium body. The inner and outer filter medium bodies are formed from separate pieces of preferably pleated filter medium. The inner filter medium body is attached to the outer filter medium body(s). Preferably, a connecting means serving for attachment simultaneously seals the inner and outer filter medium bodies from one another.

The invention discloses a port sewage dynamic treatment control system based on pressure feedback and flow coordination, and relates to the technical field of port sewage treatment. The port sewage dynamic treatment control system based on pressure feedback and flow coordination comprises a port sewage pipeline blockage analysis module, a port sewage flowing state analysis module and a sewage pressure coordination control analysis module. According to the method, port sewage pipeline blockage analysis is carried out through the obtained filter medium pressure difference to judge whether anti-oscillation variable-frequency optimization is carried out or not, and then whether intelligent speed regulation optimization is carried out or not is judged based on the port sewage flowing state analysis result; and finally, sewage pressure cooperative control analysis is carried out through the obtained sewage pressure cooperative data to judge whether separation supply optimization is carried out or not, so that the sewage parameter closed-loop cooperative control efficiency in the reaction tank is improved when blockage occurs in the biochemical treatment stage. The problem that the closed-loop cooperative control efficiency of sewage parameters in the reaction tank is not high when blockage occurs in the biochemical treatment stage is effectively solved.

The invention provides a printing and dyeing wastewater concentration method and system, and the method comprises the steps: carrying out pretreatment on desizing wastewater, so that suspended particles and colloidal impurities in the wastewater are intercepted and adsorbed by a filtering medium; carrying out buffering and flow regulation on the pretreated wastewater, and meanwhile, carrying out heat exchange on hot condensate water generated in the printing and dyeing production process and the pretreated wastewater; raising the temperature of the wastewater to 40 DEG C or above; pressurizing the heated wastewater and then carrying out membrane separation and concentration treatment, forming dialysate by micromolecular substances and part of water, and gradually accumulating intercepted macromolecular substances to form concentrated solution; when the concentration of the concentrated solution reaches the discharge standard, pollutants are treated by adopting a chemical precipitation method and a biological treatment method, or useful substances are recycled. The wastewater concentration process flow is optimized, the wastewater is filtered, intercepted and adsorbed through multiple media, a good water inlet condition is provided for concentration treatment, modified starch and PVA in the wastewater are effectively concentrated, and the follow-up treatment volume and difficulty are reduced.

The invention relates to a filter element (10) for filtering a fluid, in particular air, at least comprising a filter medium body (12) with a filter medium (14) laid in folds (16), in particular in a zigzag shape, along a longitudinal extent (50) of the filter medium body (12), wherein the folds (16) form fold valleys (20) and fold tips (18), wherein the fold tips (18) span a first end face (22) and the fold valleys (20) span a second end face (24) lying opposite in a vertical extent (52) of the filter medium body (12). The filter medium body (12) has variable pleat heights (26) and / or a variable pleat pitch (27) along the longitudinal extent (50), such that at least one end face (22) of the end faces (22, 24) has a profiled course and / or an inclined course along the longitudinal extent (50) compared to the other end face (24).In this case, a sealing element (28) is arranged circumferentially around the end face (22) with the profiled and / or inclined course and has essentially a constant height (29) in the vertical extension (52).

A system and methods are provided for an air filter that detects a pressure differential across the filter, due to contaminant buildup, and indicates when the filter needs to be serviced. The air filter comprises a filter medium supported within a frame and a differential pressure detector incorporated into the frame. The frame supports the filter medium within a HVAC system, and the filter medium removes contaminants from an airstream flowing through the HVAC system. The differential pressure detector signals when the pressure differential across the air filter reaches a threshold value due to contaminant buildup within the filter medium. The differential pressure detector includes circuitry that wirelessly signals an application stored on a user's mobile device to display a notification to the user when the air filter needs to be cleaned or replaced to minimize energy consumption by the HVAC system.

A system and methods are provided for an air filter that detects mechanical strain on the filter, due to contaminant buildup, and indicates when the filter needs to be serviced. The air filter comprises a filter medium supported within a frame and a mechanical strain detector incorporated into the frame. The frame supports the filter medium within a HVAC system, and the filter medium removes contaminants from an airstream flowing through the HVAC system. The mechanical strain detector signals when the force acting on the air filter reaches a threshold value due to contaminant buildup within the filter medium. The mechanical strain detector includes circuitry that wirelessly signals an application stored on a user's mobile device to display a notification to the user when the air filter needs to be cleaned or replaced to minimize energy consumption by the HVAC system.

A filter cartridge (2) includes a filter cartridge cover (5) including a filter cartridge installation opening (15), a filter cartridge housing (9) on which the filter cartridge cover (5) is disposed, a filter medium (8) disposed inside the filter cartridge housing (9), and a stripper device (10) disposed inside the filter cartridge housing (9). The stripper device (10) includes a stripper shaft (11) having an axis coinciding with a longitudinal axis of the filter cartridge (2), and stripper elements (12) extending from the stripper shaft (11) and configured to engage with the filter medium (8) to cast off dust particles that are accumulated on the filter medium (8).

The invention relates to a filter element (10) for filtering a fluid, in particular air, at least comprising a filter medium body (12) with a filter medium (14) folded, in particular in a zigzag shape, wherein the folds (16) form fold valleys (20) and fold peaks (18), at least one sealing element (28), and an edge protection element (30) arranged on an inflow surface (22) and / or outflow surface (24).The edge protection element (30) has a circumferentially closed profile and runs at least at opposite corners (60, 61, 62, 63) of a circumferential edge (33, 35) of the inflow surface (22) and / or outflow surface (24) transversely to the fold tips (18) and / or fold valleys (20) along the circumferential edge (33, 35) and has, in at least one intermediate section of one of the adjoining circumferential edges (32, 34) which run parallel to the fold tips (18) and / or fold valleys (20), an indentation (36) along which the edge protection element (30) runs on the inflow surface (22) and / or outflow surface (24) at a distance from the circumferential edge (32, 34).

A water treatment system includes a main container defining an interior and having an upper edge, a reservoir removably insertable into the interior and located upon the upper edge, the reservoir defining a cartridge seat including a plurality of holes in communication with a helical thread, and an annular landing vertically depending from the thread, a filter cartridge including a cap associated with a sump body and having a filter media in the sump body, the cap having a plurality of radially outwardly projecting pins constructed and arranged for engaging the holes and the helical thread, an annular seal disposed externally on the sump body and spaced below the cap. The filter cartridge and the cartridge seat are configured so that upon the cap pins engaging the helical thread, upon reaching a fully engaged position of the cap in the thread, the seal is compressed against the annular landing.

The present disclosure is directed polymer-free, non-composite densified carbon nanotube (DCN) structures from thin carbon nanotube (CNT) films and methods of making the same. CNT thin films can be cut, folded, stacked and pre-arranged in the form of cylinders, discs, domes, frames, gaskets, jars, rings, sacks, seals and sheets on a smooth reaction vessel surface and subsequently densified with the use of chlorosulfonic acid (HClSO3) at elevated temperatures. The disclosed DCN structures can be used as EMI shielding, lightweight structural and functional components in extreme conditions commonly encountered in space exploration, polar expeditions and military operations, and also as hydrophilic filtration media that resist surface fouling and provide high flux.

The invention relates to a multistage multi-medium wastewater treatment filtering device and method, and relates to the technical field of wastewater treatment. Comprising a standing processing tank, a plurality of groups of filtering tanks for performing hierarchical treatment on wastewater are arranged in the processing tank in the circumferential direction, each filtering tank is composed of a fixed tank body, a movable tank body and a tank cover, a control rod is mounted in the middle of each filtering tank, and a plurality of groups of filtering frames for filtering wastewater are arranged on each control rod at equal intervals; different types of filter media are filled in the filter frame; the bottom of the filtering tank is provided with a control piece for controlling the filtering tank to shake to improve the filtering efficiency, and the inner side of the filtering tank is provided with a cleaning piece for cleaning hardened garbage. According to the invention, a multi-stage multi-medium filtering mode is adopted, the four groups of filtering tanks are used for treating the wastewater in sequence, and the filtering frames in each group of filtering tanks are filled with different types of filtering media, so that different pollutants in the wastewater can be effectively removed, and the filtering efficiency and the treated water quality are greatly improved.

An apparatus and methods are provided for an air cleaner to be mounted onto an air inlet of an internal combustion engine. The air cleaner comprises an air filter that includes a filter medium disposed between a curved base and a cover. The curved base provides an interface between the air filter and the air inlet, and comprises a shape that provides clearance between the curved base and an electric choke installed onto a carburetor comprising the air inlet. The cover secures the air filter and the curved base to the air inlet such that an airstream is drawn through the filter medium and is conducted into the air inlet. A raised portion of the cover is configured to cooperate with the curved base to ensure a desired volume of the airstream is available to the air inlet at substantially all engine speeds.

Tobacco filter (1) comprising a filter sleeve (5), a granular filter medium (2) arranged therein, characterized in that a first closure element (4) at a first end of the filter sleeve (5) is designed as a cellulose-containing plug, wherein the filler (21) is designed as a bundled surface filter medium in the form of a filter belt, the filter surface of which is arranged essentially parallel to the longitudinal axis (A) of the tobacco filter (1) and wherein the edges (18) of the surface filter medium form the end faces (17) of the cellulose-containing plug (3).