1578 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. 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.

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.

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).

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).

To make it possible to easily perform an assembling work.SOLUTION: A filter includes: a filter medium 2 having each folding surface 21a facing in opposite directions by folding of a sheet-shaped filter material 2A in an accordion shape, each end face 21b and each lamination plane 21c; a frame body 3 which opens each folding surface 21a and is provided on each end face 21b and each lamination plane 21c; and a sheet member 4 which is so provided as to cover the end face 21b of the filter medium 2, and is bonded to the end face 21b by an adhesive. The sheet member 4 and the frame body 3 are partially bonded by the adhesive, and a seal material is filled between an opening edge (covering part 3Ab) of the frame body 3 and an end edge on the end face 21b side of each folding surface 21a along the opening edge.SELECTED DRAWING: Figure 1

Filter media and filters, such as air filters, residential air filters, commercial air filters, face masks, gas turbine and compressor air intake filters, panel filters, and the like, are provided that comprise a plurality of fibers with a silicone-based coating. The silicone-based coating comprises a silicone compound at least about two percent by weight of the coating. The silicone-based coating may include a reactive silicone macroemulsion and a surfactant. The silicone-based coating increases the efficiency of the filter at capturing contaminants, particularly contaminants in the E2 and E3 particle group range, without compromising other important characteristics of the filters, such as cost, longevity, dust holding capacity, and the pressure drop or air permeability of the filter.

Gas bio-trickling filter (g-BTF) processes are provided for polluted air purification mainly focusing on the treatment of VOCs and odor using low-cost filter media (agricultural waste i.e., wood char coal and other waste i.e., sludge, compost etc.) that is cheap and readily available. Apparatus for purifying volatile organic compounds and odor control enriched air stream uses a consortium of the microorganisms including Rhodococus sp., Paracocus sp, Microbacterium sp., Mutant Paracocus denitrificans sp. The consortium approach ensures a broader range of VOC degradation capabilities, allowing for efficient removal of multiple compounds simultaneously. This versatility makes biotrickling filters highly adaptable to different industrial settings, such as paint manufacturing plants or automotive facilities. Compared to other process (thermal and chemical process), the developed BTF process are associated with the lowest operating and maintenance costs. Overall VOC and odor removal efficiency of the g-BTF unit is 99.9%.

The utility model discloses a filter material and a device for filtering or purifying gas and liquid. The utility model relates to a filter material for filtering or purifying gas and liquid. The filter material consists of a felt-like fibrofelt formed by micron-scale polymer fibers, glass fibers, ceramic fibers or metal fibers and an adsorption material positioned in gaps of the fibrofelt or on the fiber surface of the fibrofelt. The filter material disclosed by the utility model can resist impact of high temperature, high pressure and high flow, has good flexibility, can optimize the filtering and purifying effects, can be cut into any required shape and folded into a wave-shaped wrinkle structure or stacked together, and can be used for filtering and purifying. The device has a wide application prospect in the fields of purification of various radioactive gases in gas masks and closed spaces and the like.

The utility model provides a human eye simulation camera, and belongs to the technical field of camera shooting. The human eye simulation camera comprises a corneal lens, a simulation iris and a photosensitive element which are sequentially arranged along a photosensitive path, a simulation pupil is arranged in the center of the simulation iris, and a filtering medium for infrared cut-off is arranged between the simulation pupil and the photosensitive element. Therefore, according to the human eye simulation camera provided by the invention, unnecessary infrared light reflection can be eliminated by arranging the filtering medium, so that the recognition precision of an eye movement algorithm is improved.

Apertured polymeric layers, sheets, mesh or films are provided for a variety of different applications. A polymeric sheet comprises at least one polymer layer having one or more apertures for flow of gas or liquid therethrough, and a plurality of nanoparticles disposed within the polymer sheet such that the nanoparticles are disposed between a first surface of the polymer sheet and a second surface opposite the first surface. The nanoparticles filter contaminants passing through the polymeric sheet. The apertured sheets may comprise filter media and / or support membranes for filter media in gas or liquid filters. The nanoparticles reduce the overall pressure drop across the support membranes to improve the efficiency of such filters.

The present invention is a multifunctional scented air filter designed for use in residential and commercial settings, as well as vehicles. The air filter functions to filter air passing therethrough while providing fragrance. The filter features a support frame and a filter media. The filter media has a plurality of filtering pleats for filtering airborne contaminants and a plurality of scented gel lines having infused fragrance for permeating fragrance when air passes through them. The scented gel lines are positioned along some of the filtering pleats. In some embodiments, the filter device has notches on the support frame for fastening the device in a vent and an anti-microbial layer for providing additional prevention from airborne contaminants. The scented air filter enables clean air to be released into the building or vehicle, while simultaneously infusing it with a fragrance.

The invention provides multi-stage pre-filtering type condensed water fine treatment equipment which comprises a base, a shell is fixedly installed at the top of the base, a liquid guide groove body is fixedly connected into the shell, first filtering units are installed at the top in the shell in an array mode, and second filtering units extending into the shell are installed at the bottom of the shell in an array mode. The top end of the second filter unit extends into the liquid guide groove body, a material changing unit extending into the shell is assembled on the outer side of the shell, and the material changing unit is matched with the first filter unit and the second filter unit for operation; a positive tank and a negative tank are fixedly mounted at the top of the base, and a recovery unit is assembled between the positive tank and the negative tank. According to the invention, rapid replacement of the filter medium is realized through the material changing unit, the disassembly process and downtime are reduced to the maximum extent, and frequent contact between personnel and the filter medium is reduced; resin and impurities are rapidly absorbed through negative pressure, water is injected through the water return branch pipe for backwashing, and residual resin in the pipeline is thoroughly removed in combination with negative pressure suction.

A filter insert (1) comprising a support grid frame (2) with a plurality of support grid walls (6, 7, 11, 11') and with a surface filter medium (13), wherein the support grid frame (2) has an inflow plate (8) and wherein the filter insert (1) is designed to be open at least in regions perpendicular to the surface normal of the inflow plate (8), wherein the surface filter medium (13) is clamped and / or positively secured and / or secured by means of mechanical connecting means at least on individual support grid walls (6, 7, 11, 11') of the support grid frame (2); and a method for forming a filter module in a filter system.

The invention relates to the technical field of filters, and provides a modified fiber oil removal filter, a shell is provided with a water inlet, a water outlet and a drain outlet, a support pore plate is arranged in the shell and is used for bearing a fiber filter material, a backwashing ring pipe is rotatably arranged above the support pore plate, a communication hole and a jet hole are formed in the backwashing ring pipe, and the jet hole is communicated with the support pore plate. The communicating holes are used for being communicated with a backwashing air supply pipe or a backwashing water supply pipe, the spraying holes are used for spraying water flow or air flow to the filter material, the backwashing air supply pipe and the backwashing water supply pipe are arranged in a manner of penetrating through the side wall of the shell, and when the backwashing ring pipe rotates, the communicating holes can be alternately communicated with the backwashing air supply pipe and the backwashing water supply pipe; therefore, the backwashing ring pipe rotates and sprays air flow or water flow from the spraying holes at the same time, and the backwashing coverage range is enlarged. By means of the technical scheme, the technical problems that in the prior art, the air-water backwashing coverage range is limited, and the backwashing effect is uneven are solved.

The invention relates to a filter element (10) for filtering a fluid, in particular air, comprising at least a filter medium body (12) with a non-closed cross-section and a filter medium (14) arranged in folds (16), in particular in a zigzag pattern, along a longitudinal extension (50) of the filter medium body (12), wherein fold tips (18) form a first end face (22) and fold valleys (20) form a second end face (24) opposite in a transverse extension (52) of the filter medium body (12), with fixing elements (80) which extend between the folds (16) in the transverse extension (52) and fix a distance between the folds (16), with a first edge element (26) at least partially circumferentially around the first end face (22) and a second edge element (28) at least partially circumferentially around the second end face (24). The filter medium body (12) has at least one of its end faces (22, 24) a notch (40, 44) whose length (42, 46) in the transverse extent (52) is at least a part of the transverse extent (52) of the filter medium body (12).

The invention relates to the technical field of filtering, discloses a filter and a wind power gear box lubricating and cooling system applying the same, and solves the technical problems of complex structure and high manufacturing cost caused by independent configuration between a base and a bottom valve block. A filtered medium flow path temperature control distribution mechanism is arranged in the base, and the filtered medium flow path temperature control distribution mechanism distributes the filtered medium passing through the filtered medium flow collecting cavity into a first output channel and a second output channel through a temperature control valve set to be output respectively. The ratio of the flow of the filtered medium output through the first output channel to the flow of the filtered medium output through the second output channel is in positive correlation with the temperature of the filtered medium; the temperature control valve group is installed in the filtered medium flow collecting cavity and comprises a valve sleeve, a valve element and an elastic pre-tightening device. The overall structure of the filter is simplified, and the manufacturing cost is reduced.

Filtration media packs, filter elements, and media are disclosed, including media packs having a plurality of layers of single facer media wherein the layers of single facer media include a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet, with the fluted sheet and facing sheet formed of multi-layer media can include a polytetrafluoroethylene (PTFE) layer supported by a polymeric scrim layer.

A filter element for a fluid to be installed in a housing of a filter system, wherein the housing has at least a first housing part, a second housing part, and a filter head, is provided with a filter medium body having an end disc at an end face. One or more connection elements for connecting the filter element to at least one counterpart connection element of the second housing part are arranged at the end disc and extend away from the end disc in a longitudinal direction of the filter element. A filter system is provided with such a filter element which is arranged in the housing of the filter system and is connected to the counterpart connection element of the second housing part.

The invention relates to the technical field of bag-type dust removers, in particular to a dirt cleaning device for a bag-type dust remover, which comprises a venturi tube, a filter bag and support frames, the filter bag is arranged on the venturi tube, the filter bag is arranged outside the support frames, the support frames are arranged at the bottom of the venturi tube, and the middle parts of a plurality of groups of support frames are close to each other; the cleaning part comprises a fixed frame, a movable block, an adjusting piece and a hoop; through mutual cooperation of the hoop, the support frame and the filter bag, the filter bag is changed into a cylindrical shape from an initial elliptic cylindrical shape and is loosened when high-pressure airflow is used for blowing and cleaning the filter bag, so that the filter bag is fully expanded under the action of pulse airflow and has relatively large elastic deformation, attached dust is more effectively shaken off, and the dust removal efficiency is improved. According to the design, the problem of poor ash removal effect of a traditional ash removal mode is solved, so that on the premise that the safety of the filter bag is ensured, airflow can be in full contact with a filter medium when penetrating through a gap of the filter bag, and the filter efficiency is improved.