2902 results about "Filter media" patented technology

A filtration system for a dry bulk tank trailer includes a filter canister containing a filter media in the interior volume of the filter canister. The filter media divides the interior volume of the filter canister into a dusty air side and a clean air side of the interior volume on opposite sides of the filter media. A dusty air line operatively communicates the dusty air side of the interior volume with the dry bulk tank. A fitting operatively communicates with the clean air side of the interior volume. The fitting is operable to selectively communicate a vacuum pressure and a positive pressure to the clean air side of the interior volume.

The invention provides a liquid inlet automatic backwashing control method and system for a filter station, and relates to the technical field of backwashing control, and the method comprises the following steps: interactively obtaining liquid characteristic parameters and filtration requirement parameters of a to-be-filtered liquid; filtering medium matching is carried out, after filtering medium type selection is obtained, filtering element configuration of a filtering station is carried out, and a target filtering element is obtained; target structure features are obtained, filtering condition initialization is carried out, and initial filtering control constraints are output; the initial filtering control constraint is used as an optimization condition, liquid inlet preparation speed optimization is executed, and the liquid inlet control speed is positioned; carrying out blockage trend analysis, and executing backwashing control optimization to obtain backwashing control parameters; and carrying out intermittent automatic backwashing by adopting the backwashing control parameters. According to the invention, the technical problem of resource waste or influence on the filtering effect caused by backwashing when the filtering element is not completely blocked or is severely blocked because the backwashing control in the prior art is usually carried out at a fixed time or a preset period is solved.

An evaporator air cooler having vertically stackable major components. A water reservoir is located within the bottom panel of the housing. A filtered media is positioned generally above the water reservoir. A fan is positioned above the water reservoir and the filter media. In this manner, the footprint of the unit is minimized. The warm air intake and the cool air discharge are located on the same side of the housing so that the unit may be placed against a wall thereby further minimizing the footprint. Automated controls are included to monitor temperature and humidity than oscillate the vertical louvers.

Embodiments relate generally to a self-cleaning filter. A filter may include a tube comprising perforations. The tube may be configured to receive a flow of a liquid from a first direction or a flow of a gas from a second direction opposite to the first direction. The filter may also include a filter media positioned concentrically around the tube, and spacers positioned between the tube and the filter media to create a space between the tube and the filter media. A portion of the filter media is configured to flex inward into the space during the flow of liquid into the filter, and flex outward from the space during the flow of gas exiting the filter.

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.

A filter element for a heating, ventilation, and / or air conditioning (HVAC) system includes a filter media pack, a support element, and a magnetic material. The support element is configured to couple the filter media pack to a filter housing. The support element extends along a longitudinal direction from a first longitudinal end to a second longitudinal end. The magnetic material is disposed on the first longitudinal end of the support element. The magnetic material is configured to magnetically engage a second magnetic material of the filter housing to facilitate alignment between the a housing rail of the filter housing and the support element during installation of the support element into a filter housing.

A wastewater filter cartridge includes a peripheral frame, two filter media sheets, two sets of angled fins, and a filtered water outlet. The two filter media sheets are attached to the peripheral frame in spaced face-to-face relation such that they combine with the peripheral frame to define an interior volume within the filter cartridge. At the same time, the two sets of angled fins are attached to the peripheral frame external to the interior volume and project away from the filter media sheets at oblique angles. As wastewater passes through the two filter media sheets into the interior of the filter cartridge, the two filter media sheets act to reduce the suspended solids in the wastewater. Once in the interior volume of the filter cartridge, the filtered water is collected via the filtered water outlet, which is connected to the interior volume.

Porous membranes, and methods of making such porous membranes, that comprise staple or discrete fibers and nanoparticles dispersed throughout at least a portion of the membrane are provided. A filter media comprises a porous membrane comprising staple fibers and having a mean pore size of less than about 10 microns. The media further includes nanoparticles disposed within the porous membrane. The nanoparticles reduce the mean pore size of the membrane, while substantially maintaining the pressure drop (e.g., bubble point) across the membrane. The porous membranes may be configured for use as filter media and are particularly useful for gas or liquid filters, including, but not limited to, membrane filters, diesel filters, air filters, face masks, gas turbine and compressor air intake filters, panel filters, cartridge filters, bag filters, clean-in-place (CIP) filters and the like.

The invention relates to a ring filter element with a filter medium body in the form of a bellows, which has at least one radially internal pleat spreading section adjacent to an open end disk. The open end disk has at least one recess. The recess and the pleat spreading section are arranged in overlapping positions. At the axial end facing away from the open end disk, the filter medium body is sealed by a closed end disk. When the ring filter element is used in a filter device, an engagement element engages the pleat spreading section and / or the recess. The engagement element can be formed on a filter housing or on another ring filter element of the filter device. Thus, an angular position of the ring filter element relative to the filter housing or the other ring filter element is fixed.

The invention relates to a filter element with at least one filter medium body. On the downstream side, the filter element is supported by a grid section of a support element. The grid section has flat flow openings and is preferably formed with intersecting ribs. The support element has at least one locking element formed integrally with the grid section, by means of which the filter element can be locked onto a housing cover of a filter device. A sealing element is held on the support element, which, in the locked position, seals the filter element against the housing cover. When a filter housing is opened, the filter element remains held on the housing cover due to the locking mechanism. Dirt accumulated on the downstream side (between the filter element and the housing cover) thus does not enter a housing lower part with a clean-side outlet.

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.

An interior room air filter module has a particle filter element, an adsorption filter element, and a frame with a radially protruding seal flange surrounding them. The particle filter element has a folded pack with zigzag-folded layers of filter medium. The layers include a layer with an aerosol-separating filter medium, an inflow-side first layer, and an outflow-side second layer at the particle filter element. The first and second layers, for forming the folded pack, are folded while resting on each other. The adsorption filter element has shaped bodies in the form of honeycomb bodies which adsorb at least hydrocarbons. The seal flange laterally surrounds the adsorption filter element at a circumferential exterior wall thereof. A filter assembly has a filter housing for receiving such an air filter module and has first and second seal sections following a contour of the seal flange or seal attached thereto.

Embodiments relate generally to a self-cleaning filter. A filter may include a tube comprising perforations. The tube may be configured to receive a flow of a liquid from a first direction or a flow of a gas from a second direction opposite to the first direction. The filter may also include a filter media positioned concentrically around the tube, and spacers positioned between the tube and the filter media to create a space between the tube and the filter media. A portion of the filter media is configured to flex inward into the space during the flow of liquid into the filter, and flex outward from the space during the flow of gas exiting the filter.

The invention belongs to the technical field of reaction crystallization type solid-liquid separation, and particularly relates to filtering equipment with a reaction aging crystallization function. The device comprises a reaction kettle and a centrifugal filter disc which is located in the reaction kettle and can rotate and ascend and descend, and a reserved channel for materials to ascend and filter cakes to descend is formed between the disc edge of the centrifugal filter disc and the inner wall of the reaction kettle; the upper disc surface of the centrifugal filter disc is provided with a filter surface, a kettle cavity of the reaction kettle is communicated with a liquid accumulation cavity positioned in the centrifugal filter disc through the filter surface, the liquid accumulation cavity is communicated with a mother liquor outlet through a transition channel, and a slag outlet for discharging filter cakes is formed in the bottom of the reaction kettle. Through vertical reciprocating motion of the filter disc and multi-dimensional motion of rotation, rapid filtering and centrifugal discharging functions of materials needing reaction, aging and crystallization operation are achieved, smoothness of a filtering medium channel can be effectively guaranteed, and the effects of being simple in structure and compact in structure are achieved.

A filtration module is provided, the module including at least one filtration packet containing filtration media or one or more membranes, such as a stack of membranes, the at least one filtration packet having one or more fluid ports, the one or more fluid ports being surrounded by a primary seal and a secondary seal spaced from the primary seal. The secondary seals are designed to maintain sterility of the assembly during shipping, handling and / or installation. A removable film may cover one or more fluid ports to maintain sterility prior to use.

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 present disclosure relates to a filter element comprising a filtration media pack comprising a longitudinal axis, a first open end cap arranged at a first axial end of the filtration media pack comprising a central opening, wherein the first end cap is at least partially flexible and non-destructively deformable in a radial direction, and comprises a circumferential seal circumferentially surrounding the opening, wherein the circumferential seal comprises one or more radial seal extensions; and one or more, preferably separate, reinforcement structures at least partially embedded into a material of the first end cap and preferably arranged in respective areas of the one or more radial seal extensions.

Filter unit 1 with a power supply 20, a spray electrode 15, and a filter medium 115, which is arranged between a first electrode 110 and a second electrode 120, wherein the first electrode 110 is arranged between the spray electrode 15 and the second electrode 120, the power supply 20 has a spray electrode output 28 and a further output 29, the power supply 20 is configured to provide an ionization current I ion to be handed over, as well as a voltage U ion Providing the connection between the spray electrode output 28 and the further output 29 can be made particularly advantageous if the first electrode 110 and the second electrode 120 are connected in parallel to each other at the further output 29 of the power supply 20.

The invention relates to a flat-filter filter element for filtering a fluid, in particular for filtering air, for a filter system, in particular for an air filter system of a fuel cell system, having an arrangement of at least two flat-filter medium bodies being arranged adjacent to each other in an axial direction, so that the fluid can flow through them one after the other in the axial direction. The flat-filter filter element comprises an overmolded plastic frame that is directly molded to an outer circumference of one of the filter medium bodies, and the other one of the filter medium bodies is sealingly connected to the overmolded plastic frame by means of a circumferential cast element.

Filter media for use in liquid filters and liquid filters are provided that include a substrate, such as a porous membrane, and nanoparticles incorporated into the substrate. The nanoparticles may comprise nanoparticles, nanofibers or mini fibers that have at least one dimension less than about 20 microns. The nanoparticles are bonded to the fibers within the substrate and are dispersed "in depth" within the substrate, which improves the performance characteristics of the material for a number of different applications. For example, the nanoparticles increase the overall surface area within the substrate, which may increase its filtration efficiency and allow for the capture of submicron contaminants without significantly compromising other factors, such as bubble point or through-put across the filter.

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 septic tank filter system includes a tank. The tank includes an inlet and an outlet, wherein the outlet is disposed on the tank below the inlet to enable a flow of wastewater to be gravity fed from the inlet to the outlet. A filter is positioned in the tank. The filter includes a frame. A filter media is disposed on the frame. The filter media is operable to filter the wastewater of waste material as the wastewater passes therethrough. An overflow opening is disposed on a top portion of the filter. A bottom of the overflow opening is located above the tank outlet and below the tank inlet. When the filter media is not clogged, a level of the wastewater remains below the overflow opening. When the filter media is clogged, the level of the wastewater rises until the wastewater flows over the overflow opening.

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).

To provide a compaction state control method of a filter material layer which changes an index of the end of discharge of compaction water according to the state of a filter material, and thereby forming a filter material layer in a state optimal for filtration treatment.SOLUTION: A filtration device for performing compaction treatment of discharging compaction water stored in a filtration tank before filtration treatment from below, and compacting a filter material layer by a dynamic pressure at the time of discharge includes: previously setting a foundation discharge value as a discrimination index of a compaction state; gradually setting a coefficient corresponding to a duration time of an immediately-preceding filtration treatment step; calculating a coefficient from an immediately-preceding filtration duration time; calculating a reference discharge value by multiplexing the foundation discharge value by the coefficient; discriminating that the compaction state is satisfactory, and finishing the compaction water discharge step, when at least one discharge value of the discharge speed and the discharge flow rate of the compaction water reaches a reference discharge value; and discriminating that the compaction state is not satisfactory, and shifting the step to a compaction water storage step again, and thereby improving filtration treatment efficiency, when the discharge value does not reach the reference discharge value.SELECTED DRAWING: Figure 3