A detachable hold-down screen assembly configured to reside on an upper surface of a media bed in a cylindrical pressure vessel. The detachable hold-down screen assembly includes a plurality of screen panels that detachably interlock to form a flat, semi-rigid screen disk that retains media during an upward flowing regeneration cycle of the media bed inside the cylindrical pressure vessel. The detachable hold-down screen assembly further includes an extraction tool for safe and efficient installation, disassembly and removal of the detachable hold-down screen assembly components from the cylindrical pressure vessel through an upper manway of the vessel, without requiring personnel to enter the cylindrical pressure vessel.
Modular screen assembly (10) for filtering water drawn from a body of water by a pump through a pipe. The assembly (10) comprises a plurality of intake modules (12) that are arranged in an annular array across the end of the pipe. Each intake module (12) has a funnel portion (14) that directs water flow into the pipe and a vane (16) that prevents water flow between adjacent intake modules (12). The modular screen assembly (10) also comprises a screen module (18) that surrounds the annular array of intake modules (12) and filters water entering the intake modules (12).
B01D 35/02 - Filtres adaptés à des endroits particuliers, p.ex. conduites, pompes, robinets
A01K 63/04 - Agencements pour traiter l'eau spécialement conçus pour les récipients pour poissons vivants
B01D 29/03 - Filtres à éléments filtrants stationnaires pendant la filtration, p.ex. filtres à aspiration ou à pression, non couverts par les groupes ; Leurs éléments filtrants avec des éléments filtrants plats autoportants
B01D 29/33 - Eléments filtrants autoportants agencés pour la filtration à courant dirigé vers l'intérieur
E02B 1/00 - Equipement, appareils ou procédés pour travaux hydrauliques généraux
F04D 29/70 - Grilles d'aspiration; Filtres; Séparateurs de poussière; Nettoyage
An intake screen assembly having a domed or dome-like upper screen structure mounted above a central intake structure. The domed or dome-like upper screen structure is constructed such that an interior portion closely conforms to a key flow velocity isosurface without requiring additional internal flow controls or flow modifying structures to achieve desired flow velocities at any point on a screen surface. The central intake structure can define an upper flange surface to which the domed or dome-like upper screen structure is operably coupled. The domed or dome-like upper screen structure can be mounted to a perimeter of the central intake structure at a point spaced away from an intake opening. The domed or dome-like upper screen structure can include a plurality of arcuate or flat filter screen panels. An air burst system can be attached to the central intake structure to backwash the domed or dome-like upper screen structure.
B01D 29/07 - Filtres à éléments filtrants stationnaires pendant la filtration, p.ex. filtres à aspiration ou à pression, non couverts par les groupes ; Leurs éléments filtrants avec des éléments filtrants plats avec des supports à feuilles filtrantes ondulées, pliées ou enroulées
Disclosed herein is a fluid flow control apparatus, comprising a flow guide (130) upstream of a downstream device (110, 300). The flow guide (130) is configured to adjust a trajectory of a fluid passing it such that the fluid flows toward the downstream device (110, 300) in a desired trajectory, wherein the desired trajectory differs with differing flow rates of the fluid passing the flow guide. A configuration of the flow guide (130) relative to the downstream device (110, 300) is adjustable responsive to a flow rate of the fluid passing the flow guide.
B01D 33/72 - Filtres avec éléments filtrants mobiles au cours de l'opération de filtration comportant des dispositifs d'alimentation ou d'évacuation d'alimentation
B01D 33/067 - Structure des tambours filtrants, p.ex. dispositions pour le montage ou pour l'étanchéité
B01D 33/11 - Filtres avec éléments filtrants mobiles au cours de l'opération de filtration à surfaces filtrantes rotatives cylindriques, p.ex. tambours creux agencés pour la filtration à courant dirigé vers l'extérieur
A centrifugal screen filter and methods of assembly to accommodate variability in batch centrifuges by utilizing two different style joint connections when assembling the individual screen panels to form the centrifugal screen filter. A first joint configuration can include a fixation member that fixes the first joint configuration relative to the batch centrifuge by engaging the batch centrifuge. A second joint configuration can utilize an elongated, compressible member to provide flexibility and scaling capability to additional joint connections between adjacent screen panels. The centrifugal screen filter can utilize only a single first joint configuration with the remaining connections being of the second joint configuration. Alternatively, the centrifugal screen filter can be constructed utilizing one or more pairs of first joint configurations, wherein the pair or pairs of first joint configurations are located in opposed positions of the centrifugal screen filter and the remaining connections are of the second joint configuration.
This invention refers to filter metal plates treated with functional nanocoatings, in particular metal oxide nanoparticles coupled with one or more fluoroalkylsilanes and/or one or more organosilanes and/or one or more polymers functionalized with fluoroalkylsilanes and/or with organosilanes; or coated with metal oxide nanoparticles coupled with a polymeric matrix functionalized with fluorinated molecules or groups. The invention also comprises the uses of said coated plates, such as for filtering water and for separating emulsions, in the form of kits for obtaining said coatings.
An asymmetrical rotating spray nozzle system and related methods of controlled fluid disbursement onto a filtration or dewatering panel using an asymmetrical rotating spray nozzle assembly. The asymmetrical rotating spray nozzle system generally includes a sieve panel and an asymmetrical rotating spray nozzle assembly having a central hub, at least one arm or a plurality of arm segments, a nozzle connector attached near an end of each of the at least one arm or plurality of arm segments and one or more fluid-dispensing nozzles on each at least one arm or plurality of arm segments such that a set of reaction forces stemming from the asymmetrical rotating spray nozzle assembly are balanced.
B05B 3/04 - Appareillages de pulvérisation ou d'arrosage avec des éléments de sortie mobiles ou des éléments déflecteurs mobiles avec des éléments rotatifs entraînés par le liquide ou autre matériau fluide refoulé, p.ex. le liquide actionnant un moteur avant de parvenir à l'orifice de sortie
B01D 41/04 - Régénération, à l'extérieur du filtre, de la substance filtrante ou des éléments filtrants utilisés dans la filtration des fluides liquides ou gazeux d'une substance filtrante rigide ne nécessitant pas de support auxiliaire
B05B 3/06 - Appareillages de pulvérisation ou d'arrosage avec des éléments de sortie mobiles ou des éléments déflecteurs mobiles avec des éléments rotatifs entraînés par le liquide ou autre matériau fluide refoulé, p.ex. le liquide actionnant un moteur avant de parvenir à l'orifice de sortie à propulsion par réaction
Screen intake assemblies and related methods of fabrication and operation that improve both operational performance and structural strength. The screen intake assembly can include one or more screen portions that run substantially and continually along the length of the screen assembly to provide increase fluid intake and uniform flow. The screen intake assembly can comprise a central manifold having an exterior manifold screen portion to provide additional filtering capacity. The screen intake assembly can be used alone or in combination with internal flow modifier structures to increase fluid intake and uniformity. Internal flow modifiers can include a perforated flow modifier pipe, an internal flow modifier pipe, and/or converging flow modifiers. The screen intake assembly can include cleaning systems that operate continuously or on demand.
B01D 29/19 - Eléments filtrants avec des supports agencés pour la filtration à courant dirigé vers l'intérieur sur des cadres pleins à surface cannelée ou analogues
An intake screen assembly having a domed or dome-like upper screen structure mounted above a central intake structure. The domed or dome-like upper screen structure is constructed such that an interior portion closely conforms to a key flow velocity isosurface without requiring additional internal flow controls or flow modifying structures to achieve desired flow velocities at any point on a screen surface. The central intake structure can define an upper flange surface to which the domed or dome-like upper screen structure is operably coupled. The domed or dome-like upper screen structure can be mounted to a perimeter of the central intake structure at a point spaced away from an intake opening. The domed or dome-like upper screen structure can include a plurality of arcuate or flat filter screen panels. An air burst system can be attached to the central intake structure to backwash the domed or dome-like upper screen structure.
A centrifugal screen filter and methods of assembly to accommodate variability in batch centrifuges by utilizing two different style joint connections when assembling the individual screen panels to form the centrifugal screen filter. A first joint configuration can include a fixation member that fixes the first joint configuration relative to the batch centrifuge by engaging the batch centrifuge. A second joint configuration can utilize an elongated, compressible member to provide flexibility and sealing capability to additional joint connections between adjacent screen panels. The centrifugal screen filter can utilize only a single first joint configuration with the remaining connections being of the second joint configuration. Alternatively, the centrifugal screen filter can be constructed utilizing one or more pairs of first joint configurations, wherein the pair or pairs of first joint configurations are located in opposed positions of the centrifugal screen filter and the remaining connections are of the second joint configuration.
Systems and related methods for purging air burst supply piping of accumulated water prior to delivering pulses of pressurized air to an interior of a screen intake through the air burst supply piping. The systems and methods can include a purge compressor delivering a purging air supply at a head pressure slightly above a head pressure of water in the air burst supply piping, wherein the head pressure of the water is equivalent to a depth at which the intake screen. The system and methods can also include a purge line arranged in a parallel orientation to an air burst supply line, wherein both the purge line and the air burst supply line are operably coupled to a pressurized air tank.
Apparatus and related method for coupling adjacent pipe lengths, for example, a drop pipe assembly that utilize an intermediate coupling member to prevent rotational disengagement of adjacent pipe lengths under the influence of rotational torque. The coupling member can comprise an internal key feature that physically engages a keyed end on at least one end of a length of pipe. The internal key feature can include key members located on each coupling end of the coupling member such that the key members engage corresponding keyed ends of adjacent lengths of pipe such that the coupling member prevents rotation of the adjacent pipe length relative to each other.
An underdrain assembly for filtering particulates from a fluid having an upper structure connected to a bottom plate. At least one flow control vane is positioned between the upper structure and the bottom plate for directing and managing fluid flow through the assembly. The upper structure can have first and second filtration members, the second filtration member positioned between the first filtration member and the bottom plate. The second filtration member can have a shape that restricts fluid flow within the underdrain. The underdrain can have air and water inlets. The water inlet can have an end with a plate covering an upper portion thereof. The end can also include an opening having an angular cut forming an angle with respect to a longitudinal axis of the water inlet. Thus arranged, air is prevented from migrating out the water line. A resilient mounting arrangement for the underdrain is also disclosed.
A batch centrifuge having a filter screen that can be expeditiously removed and replaced and that is more rigid and more durable than filter screens that are typically employed in current practice. The batch centrifuge may include a centrifuge basket and a cylindrical filter screen disposed within the centrifuge basket, wherein the filter screen is formed of a plurality of curved panels that fit together at adjoining edges. In some embodiments, each of the curved panels may be small enough to fit through an opening in the top of the centrifuge basket without being bent or otherwise deformed.
A screen filter fabrication machine configured to produce a screen filter having a controlled slot width between wires. The screen filter fabrication machine can include a frame, a tooling head configured to rotate relative to the frame and retain a plurality of support rods, a wire feed wheel operably coupled to the frame and configured to dispense wire as it is wound around the plurality of support rods, and a control system configured to monitor one or more parameters concerning the slot width, and implement one or more process control adjustments configured to enable the winding of the wire around the plurality of support rods in such a manner that at least 99.7% of a measured slot width during screen filter fabrication falls within three standard deviations of a mean slot width measured during screen filter fabrication.
B01D 39/12 - Tamis filtrants essentiellement métalliques en métal expansé
B23K 31/02 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs au brasage ou au soudage
A screen intake has a central body with two screens attached on either end. Each of the screens has an interior that communicates with a hollow of the body via flow modifiers. These flow modifiers include one or more pipes disposed in the interior of the screens and through passages in ends of the body. A flow control support device disposed within the body supports the body's sidewall and divides the hollow into at least two portions—each communicating with flow from one of the flow modifiers. The device can include one or more plates disposed adjacent one another within the internal hollow with a peripheral edge attached to an inside of the body's sidewall. At least one of the one or more plates can be solid, or one or more of the plates can define openings therein allowing passage of at least some fluid therethrough.
E02B 9/04 - Canaux à écoulement libre ou canaux d'amenée; Prises d'eau
B01D 35/157 - Clapets de commande du débit; Passages calibrés ou d'amortissement
B01D 29/33 - Eléments filtrants autoportants agencés pour la filtration à courant dirigé vers l'intérieur
B01D 29/48 - Eléments filtrants à arêtes, c. à d. utilisant des surfaces imperméables adjacentes à éléments enroulés en hélice ou en forme de spires
B01D 29/54 - Filtres à éléments filtrants stationnaires pendant la filtration, p.ex. filtres à aspiration ou à pression, non couverts par les groupes ; Leurs éléments filtrants à plusieurs éléments filtrants caractérisés par leur agencement relatif montés en parallèle disposés de façon concentrique ou coaxiale
B01D 29/90 - Filtres à éléments filtrants stationnaires pendant la filtration, p.ex. filtres à aspiration ou à pression, non couverts par les groupes ; Leurs éléments filtrants comportant des dispositifs d'alimentation ou d'évacuation d'alimentation
E03B 3/04 - Procédés ou installations pour obtenir ou recueillir de l'eau potable ou de l'eau courante à partir d'eau de ruissellement
Screen intake assemblies and related methods of fabrication and operation that improve both operational performance and structural strength. The screen intake assembly can include one or more screen portions that run substantially and continually along the length of the screen assembly to provide increase fluid intake and uniform flow. The screen intake assembly can comprise a central manifold having an exterior manifold screen portion to provide additional filtering capacity. The screen intake assembly can be used alone or in combination with internal flow modifier structures to increase fluid intake and uniformity. Internal flow modifiers can include a perforated flow modifier pipe, an internal flow modifier pipe, and/or converging flow modifiers. The screen intake assembly can include cleaning systems that operate continuously or on demand.
B01D 35/02 - Filtres adaptés à des endroits particuliers, p.ex. conduites, pompes, robinets
B01D 29/19 - Eléments filtrants avec des supports agencés pour la filtration à courant dirigé vers l'intérieur sur des cadres pleins à surface cannelée ou analogues
A utility conduit and related methods of assembling lengths of utility conduit with a mechanical spline connector. The utility conduit includes opposed male and female ends, wherein the male end is slidably insertable into the female end of adjacent conduits. The female end includes one or more circumferential sealing channels into which a seal member is positionable and an internal spline groove that is circumferentially defined inside the conduit. The female end includes a wall bore through a conduit wall that intersects with the internal spline groove. The male end includes an exterior spline groove on an exterior of the conduit. A spline can be inserted through the wall bore and into a space cooperatively defined by the internal spline groove and the external spline groove. The spline is inserted such that the spline occupies the space cooperatively defined by the internal spline groove and the external spline groove.
F16L 47/12 - Raccordements ou autres accessoires de raccordement spécialement adaptés pour être en matières plastiques ou pour être utilisés avec des tuyaux en matières plastiques comprenant un manchon ou une douille constitué par l'extrémité du tuyau ou formé dans celle-ci avec verrouillage additionnel
F16L 21/03 - Raccords avec manchon ou douille avec segments d'étanchéité élastiques entre le tuyau et le manchon ou entre le tuyau et la douille, p.ex. avec des segments roulants ou autres segments profilés préfabriqués placés dans la partie femelle avant la fixation
F16L 21/08 - Raccords avec manchon ou douille avec moyens additionnels de verrouillage
F16L 37/14 - Raccords par insertion d'un élément entre surfaces à unir, p.ex. par un bout de fil, une goupille, une chaîne
H02G 3/04 - Tubes ou conduits de protection, p.ex. échelles à câbles ou goulottes de câblage
24.
DIRECTED HYDROBURST SYSTEM FOR CLEANING FLAT SCREENS
A screen intake system has a body with an open end and a chamber. A flat screen is disposed at the open end of the body. To keep the screen clear of debris, an airburst system has pipes disposed in the chamber. The pipes dispose parallel to one another adjacent the flat screen, and each of the pipes has orifices in a side facing the flat screen. Directors are disposed along the backs of the pipes in a lattice, and each of the directors has a channel in which the pipe disposes. Compressed air released by valves from a tank dispersed from the pipe's orifices. Each of the directors directs the resulting water/airburst from the orifices toward the adjacent flat screen to clear it of debris.
An intake screen assembly including an intake member, a screen support member, and a screen member coupled to the screen support member. The screen member may be formed from a material, such as copper-nickel, that is different from a material, such as stainless steel, used to form the intake member and/or the screen support member. The intake screen assembly may include corrosion protection members for preventing contact between the components of the screen assembly that are formed from dissimilar materials. The assembly may be formed by coupling the screen support member to the intake member, and coupling the screen member to the screen support member.
E03B 3/04 - Procédés ou installations pour obtenir ou recueillir de l'eau potable ou de l'eau courante à partir d'eau de ruissellement
B01D 29/11 - Filtres à éléments filtrants stationnaires pendant la filtration, p.ex. filtres à aspiration ou à pression, non couverts par les groupes ; Leurs éléments filtrants avec des éléments filtrants en forme de sac, de cage, de tuyau, de tube, de manchon ou analogue
A vortex breaker fits over an outlet of a vessel. The breaker has a basket disposed on a base with an opening communicating with the vessel's outlet. The basket has a cylindrical sidewall screen with profiled wires arranged around bars that extend from the base. The basket also has a top screen attached to the sidewall screen. The top screen has wires arranged across a plurality of bars. Fluid flow passing through the screens is directed by the profiled wires and the bars. Below the top screen, a baffle plate diverts the fluid flow passing through the top screen to the periphery of the top plate. Inside the basket, a flow modifier has a vanes attached to the base and disposed radially around the base's opening. At least some of the vanes have cross-tees extending from the vane's sides to break the radially directed flow inside the basket.
A variable flow control nozzle has a head, a tube, and a valve. The head disposes adjacent an opening and has a screen for passage of fluid flow into and out of the head's interior. The tube extends from the head through the opening and secures the head thereto. A tube passage communicates the interior of the head with the other side of the opening. The valve disposed in the passage has a first condition permitting first fluid flow from the passage to the interior of the head and has a second condition permitting second fluid flow from the interior to the passage. The second fluid flow may be greater than the first fluid flow. The tube can have first and second tube members with different internal diameters, and the valve can use a ball movable between positions in the tube members.
B01J 4/02 - Dispositifs d'alimentation; Dispositifs de commande d'alimentation ou d'évacuation pour introduire des quantités mesurées de réactifs
F16K 11/056 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets à corps de soupape en forme de sphère
F16K 15/04 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés en forme de sphère
The present invention relates to a length of pipe with a female end that is reinforced by a band of reinforcing material that extends around the female end. When the pipe and a similar adjacent pipe are threadably connected, the reinforcement material reinforces the female end against failure due to hoop stresses and/or lateral stresses. In this regard, the reinforcing material is any material with a higher resistance to hoop stresses and/or lateral stresses than the material from which the pipe is made. The present invention is also directed to manufacturing processes for manufacturing the pipe of the present invention.
A pipe for connecting to a similar adjacent pipe. The pipe has a male end with a plurality of rigid fingers extending from within and out of at least one exterior circumferential groove disposed on its exterior surface. On the female end is at least one interior circumferential groove sized and positioned to receive the plurality of rigid fingers from a corresponding exterior circumferential groove on the male end of an adjacent pipe. The number of exterior circumferential grooves on the male end typically corresponds to the number of interior circumferential grooves on the female end. When the male end of the pipe inserts into the female end of a similar adjacent pipe, the plurality of rigid fingers is received within a corresponding interior circumferential groove on the female end, thereby preventing the male end of the pipe from being withdrawn from the female end of the similar adjacent pipe.
F16L 37/091 - Accouplements du type à action rapide dans lesquels l'assemblage entre les extrémités s'aboutant ou se chevauchant est maintenu par des organes de blocage combinés à un verrouillage automatique au moyen d'une bague pourvue de dents ou de doigts
F16L 21/08 - Raccords avec manchon ou douille avec moyens additionnels de verrouillage
F16L 37/086 - Accouplements du type à action rapide dans lesquels l'assemblage entre les extrémités s'aboutant ou se chevauchant est maintenu par des organes de blocage combinés à un verrouillage automatique au moyen d'éléments d'enclenchement poussés radialement par des éléments faisant ressort
A pipe for connecting to a similar adjacent pipe. The pipe has a female end with a plurality of rigid fingers extending into the space within the female end. The plurality of rigid fingers extends from at least one interior circumferential groove on the interior surface of the female end. On the male end of the pipe there is at least one exterior circumferential groove that is sized and positioned to receive the plurality of rigid fingers from a corresponding interior circumferential groove on the female end of an adjacent pipe. The number of interior circumferential grooves on the female end with the plurality of rigid fingers extending from them typically corresponds to the number of exterior circumferential grooves on the male end. When the male end of a similar adjacent pipe is inserted into the female end of the pipe, the plurality of rigid fingers is received within the corresponding exterior circumferential groove on the male end, thereby preventing the male end of the similar adjacent pipe from being withdrawn from the female end of the pipe.
Passive solar wire screens mount vertically on an edifice. The screens have rods vertically arranged parallel to one another and have wires horizontally arranged parallel to one another. The wires attach to the rods and have first surfaces facing away from the edifice in an upward direction from vertical. The wires also have second surfaces facing toward the edifice in a downward direction from vertical. When the sun has a summer elevation on the horizon, the first surfaces passively reflect solar energy incident thereto away from the wire screens. When the sun has a winter elevation on the horizon, however, the first surfaces passively reflect solar energy incident thereto toward the second surfaces, which in turn passively reflect the solar energy toward the edifice. A concave surface on the wires can also reflect thermal energy back to the edifice.
F24J 2/00 - Utilisation de la chaleur solaire, p.ex. collecteurs de chaleur solaire (distillation ou évaporation de l'eau utilisant la chaleur solaire C02F 1/14;aspects de la couverture du toit relatifs aux dispositifs collecteurs d'énergie E04D 13/18;dispositifs produisant une puissance mécanique à partir d'énergie solaire F03G 6/00;dispositifs à semi-conducteur spécialement adaptés pour convertir l'énergie solaire en énergie électrique H01L 31/00;cellules photovoltaïques [PV] comprenant des moyens directement associés à la cellule PV pour utiliser l'énergie thermique H01L 31/525;modules PV comprenant des moyens associés au module PV pour utiliser l'énergie thermique H02S 40/44)
A threaded coupling for connecting a threaded first connecting drop pipe to a second connecting drop pipe. The coupling has a first female end having an enlarged exterior diameter and an interior diameter defining a lead in section which provides strength to resist lateral forces exerted on the threaded drop pipe connection. Adjacent the lead in section, internal threads are located in the first female end of the coupling. A second female end having an interior diameter substantially the same size as the lead in section of the first female end is located adjacent the internal threads, opposite the first female end. A male connecting end of a first connecting drop pipe having external threads is inserted into the lead in section and screwed into the coupling. A male connecting end of a second connecting drop pipe is coated with an adhesive and inserted into the second female end.
The centrifuge has truncated-cone-like separating screen arranged in support basket and held in the bottom thereof by lower flange. Lower flange has notched surface which penetrates into screen. The screen and the basket both have an annular upper edge and an upper flange which is attached to the upper edge of the basket and covers the upper edge of the screen. Finally, the screen is formed by a number of segments attached in pairs by a joint with a T-shaped section.
B01D 33/06 - Filtres avec éléments filtrants mobiles au cours de l'opération de filtration à surfaces filtrantes rotatives cylindriques, p.ex. tambours creux
B04B 7/18 - Tambours rotatifs formés ou revêtus d'éléments filtrants ou à tamis
The centrifuge has truncated-cone-like separating screen arranged in support basket and held in the bottom thereof by lower flange. Lower flange has notched surface which penetrates into screen. The screen and the basket both have an annular upper edge and an upper flange which is attached to the upper edge of the basket and covers the upper edge of the screen. Finally, the screen is formed by a number of segments attached in pairs by a joint with a T-shaped section.
B04B 7/18 - Tambours rotatifs formés ou revêtus d'éléments filtrants ou à tamis
B04B 3/00 - Centrifugeurs à tambours rotatifs dans lesquels les particules ou les corps solides sont séparés par la force centrifuge et simultanément par tamisage ou filtration
C13B 30/10 - Lavage des cristaux pour éliminer la liqueur-mère résiduelle dans des centrifugeurs
