An air flow guiding structure (100) for a pulse filter cartridge (110, 111) configured to include a hollow filter media pack (101), said air flow guiding structure extending from a first end (2) to a second end (3) and including a cage (1, 20), said air flow guiding structure being configured to be positioned inside a hollow filter media pack (101) of an pulse air filter cartridge, and said air flow guiding structure including at least one air flow guiding vane (11) arranged at least partially within an interior volume (V) of the cage (1), which vane is configured to guide of an air flow directed into the air filter cartridge through the cage (1, 20) and the filter media pack (101) during use. The disclosure further relates to an air filter cartridge.
An air filtration cassette (10,20) extending in a length direction (L) between a first end (17,27) and a second end (18,28), related to an intended air flow direction from the first end to the second end during use, the air filtration cassette comprising a filter material (12,22) disposed between an outer boundary surface (13,23) and an inner boundary surface (14,24), 5 the air filtration cassette having an interior open space (15,25) encompassed by the inner boundary surface and the filter material, and having an opening (19,29) arranged at one end (11,21) of the open space and being closed at the other end (16,26) thereof, an average distance (D2,D20) between said inner boundary surface (14,24) and said outer boundary surface (13,23) at said second end (18,28) being larger than an average distance (D1,D10) between said inner boundary and said outer boundary at said first end (17,27), the average distance between said inner boundary surface (14,24) and said outer boundary surface (13,23) being the average of all distances between the inner boundary surface (14,24) and the outer boundary surface (13,23) in a direction perpendicular to said length direction at a selected position along the length of the air filtration cassette; an air filter (30) and a filter arrangement (33).
Disclosed herein are replaceable filter frame gaskets and air filters having the same. The gasket is secured elastically to a filter frame of the air filter, making the gasket easily reusable and removable from the air filter.
B01D 46/00 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs
B01D 46/02 - Séparateurs de particules comportant des filtres creux faits en un matériau souple, p.ex. appareils de précipitation de poussières
F16J 15/02 - Joints d'étanchéité entre surfaces immobiles entre elles
F16J 15/06 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre
F16J 15/10 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre par garniture non métallique
F16L 23/16 - Raccords à brides caractérisés par les moyens d'étanchéité
4.
SEALING ARRANGEMENT, FILTER AND FILTER HOUSING, METHOD OF MONITORING LEAK TIGHTNESS, AND LEAK TIGHTNESS MONITORING SYSTEM
The disclosure relates to a sealing arrangement (1) comprising a gasket (5) arranged to seal a gap (2) formed between a first element (3) and a second element (4), wherein the gasket is arranged to be located in the gap (2) and to be in contact with the first and the second elements (3,4), where the gasket comprises two elongated gasket members (6,7) located on a distance from each other so as to form an intermediate gasket space (8) confined by the gasket members (6,7) and said first and second elements (3,4), and in that the sealing arrangement further comprises a pressure source (10) adapted to apply a pressure on the intermediate gasket space (8), said pressure source preferably being configured to maintain a set pressure difference towards the surroundings. The disclosure further relates to a method (100), a system, a computer program product arranged to perform the method, a further sealing arrangement (31) and a further method (300) of monitoring sealing integrity of a pharmaceutical production space.
F24F 3/16 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaire; Appareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par ozonisation
G01L 11/00 - Mesure de la pression permanente, ou quasi permanente d'un fluide ou d'un matériau solide fluent par des moyens non prévus dans les groupes ou
G01L 9/00 - Mesure de la pression permanente, ou quasi permanente d’un fluide ou d’un matériau solide fluent par des éléments électriques ou magnétiques sensibles à la pression; Transmission ou indication par des moyens électriques ou magnétiques du déplacement des éléments mécaniques sensibles à la pression, utilisés pour mesurer la pression permanente ou quasi permanente d’un fluide ou d’un matériau solide fluent
A pocket filter assembly (1) with reduced risk for exposing a user to contaminations leaving the pocket filter assembly during and after removal of the pocket filter assembly from an installation is disclosed. A first pocket filter (6a) comprisesa grip member (10) configured to be gripped by the user to enable folding of the pocket filters in a controlled manner before removal of the pocket filter assembly from an installation.
The present invention relates to a system (40) for air filter management, the system comprising a plurality of air filter devices (41a,b) and an air filter control station (42). Each air filter device(41a,b) is provided at an air filter arrangement in an air flow inlet to an industrial installation and comprises at least one filter medium capable of removing particulate material and/or airborne molecular contamination, AMC, from an air flow received at the air flow inlet. Each air filter device comprises a set of sensors arranged to gather sensor data representative of an operating state of the air filter arrangement, a microprocessor and a communication unit. The air filter control station (42) comprises communication unit arranged to receive operating state information from the plurality of air filter devices and a user interface for selecting an air filter arrangement of an air filter device. The air filter control station also comprises processing circuitry arranged to estimate a life expectancy of the selected air filter arrangement based on the operating state information received from an air filter device provided at the selected air filter arrangement and on operating state information received from one or more other air filter devices provided at other filter arrangements.
F24F 11/39 - Surveillance de la performance des filtres
F24F 3/167 - Salles blanches, c. à d. enceintes closes dans lesquelles un flux uniforme d’air filtré est distribué
F24F 8/10 - Traitement, p.ex. purification, de l'air fourni aux locaux de résidence ou de travail des êtres humains autrement que par chauffage, refroidissement, humidification ou séchage par séparation, p.ex. par filtrage
Known test probes have problems with a nonlinear intake of air through the inlet holes. This, in turn, causes a lower sensitivity to leakage at the edges of a filter compared to a more centrally positioned leakage. Aspects of the present application relate to a test probe for filter leakage detection. The test probe has a housing with a longitudinal extension and an inlet portion, elongated in direction of said longitudinal extension, for admitting gas into a first chamber of the housing through an inlet of the inlet portion and an outlet portion for letting gas out of a second chamber of the housing through an outlet of the outlet portion. Further, the test probe has an intermediate element comprising a throttling portion. The intermediate element is arranged between the inlet portion and the outlet portion, wherein the first and second chambers are fluidly interconnected via the throttling portion, wherein the throttling portion is elongated in direction of the longitudinal extension, wherein the throttling portion is arranged to cause a smaller vacuum upstream of the throttling portion than downstream of the throttling portion when gas is sucked through the test probe.
G01M 3/20 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des révélateurs particuliers, p.ex. teinture, produits fluorescents, produits radioactifs
G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
A high efficiency air filter assembly (100) for high temperature applications comprising: a filter core (102) including a unitary sheet of air-permeable filter media folded in accordion fashion to form a plurality of side-by-side pleats with zig-zag edges on two opposite sides and flat panels on the other two sides, and a spacer member between opposing walls of successive pleats, a box-like metal frame (108) enclosing said filter core on four sides in air tight engagement to define an air flow opening extending between upstream and downstream sides of said assembly, wherein the zig-zag edges of the unitary sheet of air-permeable filter media are sealingly embedded in a solid inorganic sealant composition in the frame, and wherein the unitary sheet of air-permeable filter media preferably consists of a binder-free glass or mineral fiber filter media. Use of the high efficiency air filter assembly in high temperature applications wherein the filter assembly is repeatedly or continuously heated to a temperature in the range of 200-500 °C.
A filter housing, comprising an upstream air entrance opening, a downstream air exit opening, a rear wall, a front opening opposite to the rear wall, and a cover; a filter holder; and two clamping mechanisms having a release device engaged with the filter holder for releasing the filter from the clamped position to a released position by moving the filter holder. The release device has a handle arranged at the front opening. Each handle is arranged to be in a locked state when the filter is in the clamped position, unlocked by being pulled out a distance, and then rotated to a release position in order to release the filter. The filter housing hereby provides a facilitated yet secure exchange of filters, and secures that an exchange filter is correctly mounted.
B01D 46/10 - Séparateurs de particules utilisant des plaques, des feuilles ou des tampons filtrants à surface plane, p.ex. appareils de précipitation de poussières
F24F 8/108 - Traitement, p.ex. purification, de l'air fourni aux locaux de résidence ou de travail des êtres humains autrement que par chauffage, refroidissement, humidification ou séchage par séparation, p.ex. par filtrage utilisant des éléments filtrants secs
B01D 46/42 - Equipement auxiliaire ou son utilisation
The present invention relates to a molded plastic rectangular front plate for a V-type filter, said front plate having a front surface and a back surface, characterized in that the back surface of the front plate comprises a support structure protruding in a plane substantially perpendicular to the back surface of the front plate and extending along a major portion of the length of a side of the back surface of the front plate such that the thickness of the front plate in the direction from the front surface to the back surface is increased towards the middle and reduced towards the ends of the front plate side. The present invention further relates to a V-type filter frame and a V-type filter assembly comprising such a front plate.
The present invention relates to a V-type filter frame for receiving at least one filter media pack, said V-typefilter frame being arranged to be mounted to a filter holding structure, the V-type filter frame comprising first and second side plates and a molded plastic rectangular front plate coupled to the side plates, said side plates each comprising a front edge portion and an opposite rear edge portion and the front plate having a front surface and a back surface,the back surface of the front plate comprising a first coupling portion comprising a first groove configured to receive the front edge portion of the first side plate, a second coupling portion comprising a second groove configured to receive the front edge portion of the second side plate, a trough for receiving a front edge of a filter media pack, extending between the first and the second coupling portion of the front plate,characterized in that said trough is in fluid connection with each of said first groove and said second groove when the first and second side plates are coupled to the first and second coupling portions of the front plate respectively.
The present invention relates to a filter media (1) for removing particles from an air stream. The filter media (1) comprises a porous membrane layer (2) and a pre-filter layer (3) having a downstream surface (7) and an upstream surface (8), wherein said pre-filter layer (3) is arranged with said downstream (7) surface adjacent an upstream side of the porous membrane layer (2). The pre-filter layer (3) comprises a wet laid composite media having a mixture of glass fibers (5) and synthetic fibers (4). The invention also relates to the use of a filter media (1) in a gas turbine.
A filter unit comprising a filter bag for removing particles from an air or gas flow, wherein the filter unit is arranged to receive at least one filter pocket and the filter bag comprises an opening portion and an end portion opposite said opening portion. The filter unit further comprises a frame arranged at a periphery of the opening portion, and a support structure arranged at the periphery of the end portion for stretching an area of the end portion. The frame and the support structure act to stretch the filter bag into a substantially parallelepiped shape such that the filter unit is arranged to provide a free passage for the at least one filter pocket into and out of said filter bag. Furthermore, the filter unit is arranged to fold between the frame and the support structure into a folded state.
A filter unit for removing particles from an air or gas flow, comprising a filter body having a front side, a rear side, and an edge side between the front side and the rear side, and an edge strip arranged on the edge side, which edge strip extends at least the height of the edge side and at least the length of the edge side, wherein the edge strip comprises a foamed thermoplastic material, which is molded to the edge side of the filter body such that the edge strip thereby is formed and fastened directly to the edge side of the filter body, and such that the edge is embedded in the edge strip.
The invention relates to an air intake for a plant, the air intake comprising an air channel for an air stream passing through the air intake into the plant, and a particle filter assembly arranged in the air channel for removing particles from an air stream passing through the air channel, the particle filter assembly comprising a front filter unit and a back filter unit. The front filter unit is arranged before and in series with the back filter unit such that an air stream passing through the air channel passes through the front filter unit before passing through the back filter unit. The air channel is such constructed and the front filter unit is such arranged in the air channel that the front filter unit is removable and replaceable by a fresh front filter unit while the back filter unit remains in the air channel and while an air stream is passing through the air channel during operation of the plant. The front filter unit has at least equal efficiency and dust holding capacity as the back filter unit.
F02C 7/055 - Entrées d'air pour ensembles fonctionnels de turbines à gaz ou de propulsion par réaction comportant des dispositifs pour empêcher la pénétration d'objets ou de particules endommageantes comportant des grilles, des écrans ou des dispositifs protecteurs
B01D 46/52 - Séparateurs de particules utilisant des filtres comportant un matériau plié, p.ex. appareils de précipitation de poussières
F02C 7/052 - Entrées d'air pour ensembles fonctionnels de turbines à gaz ou de propulsion par réaction comportant des dispositifs pour empêcher la pénétration d'objets ou de particules endommageantes comportant des dispositifs séparateurs de poussière
The present invention relates to an air filter pack frame constituted of four profiled elements (1) being held together by angle pieces (12) and sur-rounding an opening there between, in which a pack of pleated filter medium (FP) is intended to be mounted, said profiled elements (1) having a front side, which when a pack of filter medium is mounted in the frame is adjacent to an inlet side thereof, and a rear side, which when a pack of filter medium is mounted in the frame is adjacent to an outlet side thereof. According to the invention an inwardly open sealing channel (14) extends along each profiled elements (1) in the front end thereof.
A V-bank air filter having a high air flow rate with low pressure drop is provided. In one embodiment, a V-bank filter includes a housing having a first pair and a second pair of pleated filter elements arranged in a vee configuration and comprising a unitary disposable filter. A centerline defined by the first pair of pleated filter elements defines an acute angle with a centerline de-fined by the second pair of pleated filter elements.
The present invention relates to an air filter housing (1) having at least one filter chamber (2, 3) for receiving at least one filter unit (F), an access opening (4, 5) in a side wall of said housing leading to said filter chamber, a door (6,7) for closing said access opening and a clamping device (10, 11) for holding said at least one filter unit in abutment against a first end wall of said filter chamber. According to the invention a portion (16) of said clamping device is, when a filter unit (F) is held by said clamping device (10, 11), sealingly in abutment with a circumferential portion (15) of the wall of said housing (1) in the second end of said filter chamber (2, 3) so that air or decontamination gas that has passed through the filter unit (F) can not enter the filter chamber outside of the filter unit.
The present invention relates to an air filter housing (1) having at least one filter chamber (2, 3) with an inlet end and an outlet end for air passing through a filter unit (F) disposed in said filter chamber, an access opening (4, 5) arranged in a sidewall of said filter chamber for the introduction of an air filter unit into and removal thereof out of said filter chamber, and a clamping device (8) for pressing an air filter unit disposed in the filter chamber against an end wall of said filter chamber in the inlet end thereof. According to the invention said housing has a guide (19, 20, 21-24) for guiding an air filter unit (F) during introduction into and removal out of said filter chamber (2).
F24F 8/10 - Traitement, p.ex. purification, de l'air fourni aux locaux de résidence ou de travail des êtres humains autrement que par chauffage, refroidissement, humidification ou séchage par séparation, p.ex. par filtrage
B01D 46/42 - Equipement auxiliaire ou son utilisation
20.
CLEANABLE DUST FILTER COMPRISING A ZIGZAG PLEATED FILTER PACK
The present invention relates to a cleanable filter (1) for particulate material, especially dust, comprising a zigzag pleated filter pack (2), spacers (6) disposed between the pleats in the filter pack and a frame (3) having an upper (4) and lower part covering the respective upper and lower side of said filter pack that contains the ends of the fold lines and two lateral parts covering the opposite sides of said filter pack that contains the ends of the filter medium (5) zigzag folded into a filter pack, said frame (3) thereby leaving the opposite sides of the filter pack that contains alternate fold lines of the pleated filter pack, free for the passage of air. According to the invention the filter medium (5) in the filter pack include a pleated sheet of polytetrafluorethylene (PFTE) and the spacers (6) between the pleats consist of corrugated aluminium foils. An earthing element (7) furthermore electrically connects the aluminium foils to each other and to an earth connection on the outside of the filter frame (3).
A pocket filter assembly comprises a frame structure having a number of filter pocket openings (3) and a corresponding number of filter pockets (2), each filter pocket having a pocket mouth sealingly secured in a corresponding filter pocket opening. The frame structure comprises an outer subframe (15,16,17) and a corresponding inner sub- frame (14) connected and locked to each other solely by means of locking elements at distributed locking positions along opening portions of the subframes defining the filter pocket openings. At each locking position, the filter pocket mouths are sealingly clamped between co-operating opening portions of the subframes. The locking elements comprise an undercut hook-shaped projection (61) on the inner subframe and a co-operating receiving hole on the outer subframe, such that an interlock of the subframes to each other is obtained, while involving filter pocket mouth material of the associated filter pocket between said projection and said aperture such that said interlock is sealed thereby.
B01D 46/06 - Séparateurs de particules comportant des filtres creux faits en un matériau souple, p.ex. appareils de précipitation de poussières comportant des moyens pour maintenir planes les surfaces actives
The present invention relates to an air filter unit (1) having the shape of a tube comprising a top plate (6), having an air inlet (7) leading into the interior of the tube, whereby the top plate (6) includes fasteners (13) for removably attaching said air filter unit to a wall (2) so that the air inlet of the top plate is concentrically disposed in relation to an opening in said wall, and a sealing ring (14,15) of a resilient material surrounding the air inlet in the top plate. According to the present invention, the top plate (6) includes at least one protrusion (16) on the side thereof facing said wall (2) in use, the height of said protrusion (16) being less than the distance with which the sealing ring (14,15), when not subjected to load, projects out from the surface of the top plate.
brevets
