A system is designed to recover energy from a fluid processing operation that uses membranes to remove impurities from a feed stream. Energy recovery devices, such as turbochargers, an isobaric chamber and a multistage pump are utilized to recover the energy.
A multistage reverse osmosis system for processing a fluid, the system comprising a first fluid processing membrane; a second fluid processing membrane, the second fluid processing membrane having an inlet for unprocessed fluid from the discharge of the first membrane; a third fluid processing membrane, the third fluid processing membrane having an inlet for receiving processed fluid from the first and second processing membranes, a high-pressure pump operatively connected to the inlet for the third fluid processing membrane, the high-pressure pump controlling the quantity of processed fluid from the first and second fluid processing membranes supplied to the inlet of the third processing membrane.
A turbocharger includes a turbocharger housing having an impeller housing comprising a circular cross-section. A main nozzle is disposed within the turbocharger housing communicating a first portion of a fluid stream to a first volute. A first auxiliary channel and a first auxiliary nozzle communicating a second portion of the fluid stream to the first volute. The first auxiliary nozzle is downstream of the main nozzle. A second auxiliary channel and a second auxiliary nozzle communicate a third portion of the fluid stream to the first volute. The second auxiliary nozzle is downstream of the first auxiliary nozzle. A valve assembly is selectively coupling the first auxiliary channel to the first auxiliary nozzle and the second auxiliary channel to the second auxiliary nozzle.
F04F 13/00 - POMPAGE DE FLUIDE PAR CONTACT DIRECT AVEC UN AUTRE FLUIDE OU PAR UTILISATION DE L'INERTIE DU FLUIDE À POMPER; SIPHONS Échangeurs de pression
F03B 13/00 - Adaptations des "machines" ou machines motrices pour une utilisation particulière; Combinaisons des "machines" ou machines motrices avec les appareils entraînés ou qu'ils entraînent; Centrales électriques ou ensembles machine-appareil
5.
Method and system for operating a high recovery separation process
A turbocharger includes a turbocharger housing having an impeller housing comprising a circular cross-section. A main nozzle is disposed within the turbocharger housing communicating a first portion of a fluid stream to a first volute. A first auxiliary channel and a first auxiliary nozzle communicating a second portion of the fluid stream to the first volute. The first auxiliary nozzle is downstream of the main nozzle. A second auxiliary channel and a second auxiliary nozzle communicate a third portion of the fluid stream to the first volute. The second auxiliary nozzle is downstream of the first auxiliary nozzle. A valve assembly is selectively coupling the first auxiliary channel to the first auxiliary nozzle and the second auxiliary channel to the second auxiliary nozzle.
A system and method of operating the same includes a membrane chamber comprising a membrane, an inlet, a concentrate outlet and a permeate outlet. The membrane chamber is located in a body of water at a predetermined depth. A turbocharger is disposed at about the predetermined depth and includes a pump portion coupled to the inlet of the membrane chamber and a turbine portion coupled to the concentrate outlet. A pump communicates pressurizing feed fluid and communicates the feed fluid to the turbine portion of the turbocharger though a feed pipe. A permeate pipe extends from the permeate outlet to about the surface of at the body of water.
A turbocharger includes a turbocharger housing having an impeller housing comprising a circular cross-section. A main nozzle is disposed within the turbocharger housing communicating a first portion of a fluid stream to a first volute. A first auxiliary channel and a first auxiliary nozzle communicating a second portion of the fluid stream to the first volute. The first auxiliary nozzle is downstream of the main nozzle. A second auxiliary channel and a second auxiliary nozzle communicate a third portion of the fluid stream to the first volute. The second auxiliary nozzle is downstream of the first auxiliary nozzle. A valve assembly is selectively coupling the first auxiliary channel to the first auxiliary nozzle and the second auxiliary channel to the second auxiliary nozzle.
A fluid machine and method of operating the same comprises a pump portion, turbine portion and a center bearing therebetween. The method includes communicating lubricant to a thrust bearing cavity disposed between a turbine impeller and a thrust wear ring, communicating lubricant from the thrust bearing cavity to a center axial shaft passage of a shaft through an impeller passage of the turbine impeller, communicating lubricant through the axial shaft passage to a bearing clearance between a shaft and a center bearing through a first radial shaft passage and a second radial shaft passage and communicating lubricant through the bearing clearance to a pump impeller chamber and a turbine impeller chamber.
A fluid to fluid pressurizer includes an elongated stationary portion comprising a plurality of flow channels, said stationary portion comprising a first face at a first end and a second face at a second end. A first and second rotor housing are disposed adjacent to the end of the elongated stationary portion and have a fluid inlet fluidically coupled to respective first and second annular channels. A first and second rotary valve plates are in the housings and have inlet valve ports coupling the fluid inlet to the plurality of flow channels and outlet valve ports fluidically coupling the flow channels to adjacent the rotor faces. The rotary valve plates have sealing surfaces adjacent the stator faces. Annular seals are disposed between the rotor housings and the rotary valve plate between the annular channels. A motor or motors rotate the rotary valve plates within the housings.
F04F 13/00 - POMPAGE DE FLUIDE PAR CONTACT DIRECT AVEC UN AUTRE FLUIDE OU PAR UTILISATION DE L'INERTIE DU FLUIDE À POMPER; SIPHONS Échangeurs de pression
10.
Method and system for performing reverse osmosis with integrated pump storage
A reverse osmosis system includes a first pretreatment system and a fluid source located below a reservoir. A first membrane housing has a reverse osmosis membrane therein. A first turbocharger includes a first pump portion and a first turbine portion. The first pump portion receives feed fluid from the first pretreatment system, pressurizing the feed fluid and communicates the feed fluid to the feed fluid inlet. The first turbine portion receives brine fluid from the brine outlet. The system further includes a second and third turbocharger. A second turbine portion and the third turbine portion receive brine fluid from the first turbine portion. Second feed fluid is communicated through a booster pump, a second pretreatment system, and second pump portion to increase a pressure of the second feed fluid. The second feed fluid is communicated to the third pump portion which communicates the pressurized second feed fluid to the first pump portion.
A fluid to fluid pressurizer includes an elongated stationary portion comprising a plurality of flow channels, said stationary portion comprising a first face at a first end and a second face at a second end. A first and second rotor housing are disposed adjacent to the end of the elongated stationary portion and have a fluid inlet fluidically coupled to respective first and second annular channels. A first and second rotary valve plates are in the housings and have inlet valve ports coupling the fluid inlet to the plurality of flow channels and outlet valve ports fluidically coupling the flow channels to adjacent the rotor faces. The rotary valve plates have sealing surfaces adjacent the stator faces. Annular seals are disposed between the rotor housings and the rotary valve plate between the annular channels. A motor or motors rotate the rotary valve plates within the housings.
A reverse osmosis system includes a membrane housing comprising a reverse osmosis membrane therein. The membrane housing comprising a feed fluid inlet, a brine outlet and a permeate outlet. A first turbocharger has a first pump portion and a first turbine portion. The brine outlet is coupled to a first pipe directing a first portion of brine to the first pump portion. The first pump portion is in fluid communication with the feed fluid inlet. A feed pump communicates feed fluid to the feed fluid inlet through the first turbine portion. The brine outlet is coupled to a second pipe directing a second portion of brine toward a drain through a brine control valve.
A rotating machine has a stationary portion, and a rotating portion. The stationary portion and the rotating portion having a fluid passage therebetween. The stationary portion comprising a first fluid channel, a well, and a second fluid channel spaced apart from the first fluid channel. The first fluid channel fluidically is coupled to receive fluid from the fluid passage. A sensor is coupled to the stationary portion and is disposed at the well.
F02C 6/12 - Turbocompresseurs de suralimentation, c. à d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
F01D 21/04 - Arrêt des "machines" ou machines motrices, p.ex. dispositifs d'urgence; Dispositifs de régulation, de commande ou de sécurité non prévus ailleurs sensibles à une position incorrecte du rotor par rapport au stator, p.ex. indiquant cette position
F01D 21/12 - Arrêt des "machines" ou machines motrices, p.ex. dispositifs d'urgence; Dispositifs de régulation, de commande ou de sécurité non prévus ailleurs sensibles à la température
F01D 25/16 - Aménagement des paliers; Support ou montage des paliers dans les stators
14.
Method and system for determining a characteristic of a rotating machine
A rotating machine has a stationary portion, and a rotating portion. The stationary portion and the rotating portion having a fluid passage therebetween. The stationary portion comprising a first fluid channel, a well, and a second fluid channel spaced apart from the first fluid channel. The first fluid channel fluidically is coupled to receive fluid from the fluid passage. A sensor is coupled to the stationary portion and is disposed at the well.
F01D 17/08 - Aménagement des éléments sensibles sensibles aux conditions de fonctionnement du fluide énergétique, p.ex. à la pression
F02C 6/12 - Turbocompresseurs de suralimentation, c. à d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
F01D 21/12 - Arrêt des "machines" ou machines motrices, p.ex. dispositifs d'urgence; Dispositifs de régulation, de commande ou de sécurité non prévus ailleurs sensibles à la température
15.
METHOD AND SYSTEM FOR PERFORMING REVERSE OSMOSIS WITH INTEGRATED PUMP STORAGE
A reverse osmosis system includes a first pretreatment system and a fluid source located below a reservoir. A first membrane housing has a reverse osmosis membrane therein. A first turbocharger includes a first pump portion and a first turbine portion. The first pump portion receives feed fluid from the first pretreatment system, pressurizing the feed fluid and communicates the feed fluid to the feed fluid inlet. The first turbine portion receives brine fluid from the brine outlet. The system further includes a second and third turbocharger. A second turbine portion and the third turbine portion receive brine fluid from the first turbine portion. Second feed fluid is communicated through a booster pump, a second pretreatment system, and second pump portion to increase a pressure of the second feed fluid. The second feed fluid is communicated to the third pump portion which communicates the pressurized second feed fluid to the first pump portion.
A reverse osmosis system and a method of operating the same includes a membrane housing comprising a reverse osmosis membrane therein. The membrane housing has a feed fluid inlet, a brine outlet and a permeate outlet. A first turbocharger has a first pump portion and a first turbine portion. The brine outlet is coupled to a first pipe directing a first portion of brine to the first pump portion. The first pump portion is in fluid communication with the feed fluid inlet. A feed pump communicates feed fluid to the feed fluid inlet. The brine outlet is coupled to a second pipe directing a second portion of brine away from the first pump portion.
A reverse osmosis system and a method of operating the same includes a membrane housing comprising a reverse osmosis membrane therein. The membrane housing has a feed fluid inlet, a brine outlet and a permeate outlet. A first turbocharger has a first pump portion and a first turbine portion. The brine outlet is coupled to a first pipe directing a first portion of brine to the first pump portion. The first pump portion is in fluid communication with the feed fluid inlet. A feed pump communicates feed fluid to the feed fluid inlet. The brine outlet is coupled to a second pipe directing a second portion of brine away from the first pump portion.
A reverse osmosis system and method includes a feed pump pressurizing a feed stream, a first and second membrane array that generates permeate and brine streams. A first turbocharger uses first energy from the second brine stream to pressurize the first brine stream. A first and second auxiliary and bypass valves are associated with the first and second turbocharger. A second turbocharger uses second energy from the second brine stream to increase a second pressure of the feed stream. A first flow meter generates a first flow signal for the first permeate stream. A second flow meter generates a second flow signal for of the second permeate stream. A third flow meter generates a third flow signal for the second brine stream or the feed stream. A motor drives the first turbocharger or the feed pump. A controller controls the motor in response to the flow signals.
A slurry injection system includes low and high pressure clear fluid manifolds. Low pressure clear fluid is pressurized and communicated to high pressure manifold. A blender unit communicates slurry through a sensor system that generates a flow rate signal and a density signal of the low pressure slurry. The slurry pressurizer is in fluid communication with the high pressure clear fluid manifold through a bypass pump, a mixer, the blender unit and the low pressure clear fluid manifold. The slurry pressurizer forms high pressure slurry that is communicated to the mixer and communicates fluid to the low pressure clear fluid manifold. The mixer mixes the high pressure slurry and high pressure clear fluid from the high pressure clear fluid manifold to form a mixture that is communicated to a slurry injection site. A controller controls the bypass pump using the flow rate and density to control a density of slurry.
F04D 7/04 - Pompes adaptées à la manipulation de liquides particuliers, p.ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge les fluides étant visqueux ou non homogènes
B01F 3/12 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de liquides avec des solides
A reverse osmosis system and method includes a pump pressurizing a feed stream, a first and second membrane array that generates permeate and brine streams. A first energy recovery device uses first energy from the second brine stream to pressurize the first brine stream. A first and second auxiliary and bypass valves are associated with the first and second energy recovery device. A second energy recovery device uses second energy from the second brine stream to increase a second pressure of the feed stream. A first flowmeter generates a first flow signal for the first permeate stream. A second flowmeter generates a second flow signal for of the second permeate stream. A third flowmeter generates a third flow signal for the second brine stream. A motor drives the first energy recovery device. A controller controls the in response to the flow signals.
A fluid machine and method of operating the same comprises a pump portion, turbine portion and a center bearing therebetween. The method includes communicating lubricant to a thrust bearing cavity disposed between a turbine impeller and a thrust wear ring, communicating lubricant from the thrust bearing cavity to a center axial shaft passage of a shaft through an impeller passage of the turbine impeller, communicating lubricant through the axial shaft passage to a bearing clearance between a shaft and a center bearing through a first radial shaft passage and a second radial shaft passage and communicating lubricant through the bearing clearance to a pump impeller chamber and a turbine impeller chamber.
A fluid machine and method of operating the same comprises a pump portion, turbine portion and a center bearing therebetween. The method includes communicating lubricant to a thrust bearing cavity disposed between a turbine impeller and a thrust wear ring, communicating lubricant from the thrust bearing cavity to a center axial shaft passage of a shaft through an impeller passage of the turbine impeller, communicating lubricant through the axial shaft passage to a bearing clearance between a shaft and a center bearing through a first radial shaft passage and a second radial shaft passage and communicating lubricant through the bearing clearance to a pump impeller chamber and a turbine impeller chamber.
This vertical shaft pump 10 is provided with: a pump casing 12 which is disposed in a water suction tank 1 so as to extend in the vertical direction; a vane wheel 25 which is disposed in an upper part of a duct tube 16 inside the pump casing 12; and a first air supply pipe 30 which is disposed outside the pump casing 12. An air intake opening 30a of the first air supply pipe 30 is positioned higher than a highest water level that is higher than a water discharge initiation position LWL, while an air supply opening 30b of the first air supply pipe 30 is connected to the duct tube 16. The duct tube 16 is provided with an outer tube 17 and an inner tube 18 having a flared portion 18b, while the air supply opening 30b of the first air supply pipe 30 is connected to this flared portion 18b of the inner tube 18.
A reverse osmosis system includes a multi-element membrane array having membrane elements disposed in series. Permeate pipes receive permeate from respective membrane elements. The connectors coupling the permeate pipes have a flow restrictor. The restrictors have an effective area that increases in subsequent connectors. The body has an outer wall and an orifice plug within a longitudinal passage. The orifice plug is separated from the body. Each orifice plug has a carrier body with a plug passage therethrough. Each carrier body has an orifice plate having an orifice disposed within the plug passage and a spring disposed within the carrier body resisting movement of the orifice plate, whereby movement of the orifice plate changes an amount of fluid flowing through each connector. Each spring in subsequent connectors provides a reduced amount of spring force for resisting movement of the orifice plate.
A vertical shaft pump 10 is provided with: a pump casing 12 disposed in a water intake tank 1; an impeller 25 disposed so as to be located at a water discharge start water level LWL; swirl prevention piping 30 which suppresses the generation of an air intake swirl Sv; and air supply piping 38 for supplying air into the pump casing 12. The swirl prevention piping 30 is provided with: an annular horizontal pipe 32 which surrounds the pump casing 12; and a first vertical pipe 35A, the lower end of which is connected to the horizontal pipe 32 and the upper end of which is closed. The air supply piping 38 is provided with: a first air intake pipe 40, one end of which is disposed at the water discharge start water level LWL in the water intake tank 1, and the other end of which is disposed within the first vertical pipe 35A; and an air supply pipe 50, one end of which is connected to the horizontal pipe 32, and the other end of which is connected to the pump casing 12 at a position below the impeller 25.
A reverse osmosis system and method of operating the same includes a membrane housing comprising a reverse osmosis membrane therein. The membrane housing has a feed fluid input, a brine outlet and a permeate outlet; The system further includes a charge pump, a plurality of valves and a tank having a volume comprising a movable partition dividing the volume into a first volume and a second volume. The plurality of valves selectively couples the charge pump to the first volume or the second volume and the brine outlet to the second volume or the first volume respectively.
A reverse osmosis system includes a multi-element membrane array having a plurality of membrane elements disposed in series and a plurality of permeate pipes receiving permeate from a respective one of the plurality of membrane elements. Each of the plurality of elements has an inlet and an outlet. A plurality of connectors coupling successive permeate pipes together. Each of the plurality of connectors includes one of a plurality of flow restrictors. Each of the plurality of flow restrictors is sized to further restrict permeate flow into a subsequent permeate pipe of the plurality of permeate pipes.
A reverse osmosis system includes a multi-element membrane array having a plurality of membrane elements disposed in series and a plurality of permeate pipes receiving permeate from a respective one of the plurality of membrane elements. Each of the plurality of elements has an inlet and an outlet. A plurality of connectors coupling successive permeate pipes together. Each of the plurality of connectors includes one of a plurality of flow restrictors. Each of the plurality of flow restrictors is sized to further restrict permeate flow into a subsequent permeate pipe of the plurality of permeate pipes.
Abstract A reverse osmosis system and method includes a pump pressurizing a feed stream, a first and second membrane array that generates permeate and brine streams. A first energy recovery device uses first energy from the second brine stream to pressurize the first brine stream. A first and second auxiliary and bypass valves are associated with the first and second energy recovery device. A second energy recovery device uses second energy from the second brine stream to increase a second pressure of the feed stream. A first flowmeter generates a first flow signal for the first permeate stream. A second flowmeter generates a second flow signal for of the second permeate stream. A third flowmeter generates a third flow signal for the second brine stream. A motor drives the first energy recovery device. A controller controls the in response to the flow signals. CA 3092225 2020-09-01
A reverse osmosis system and method includes a pump pressurizing a feed stream, a first and second membrane array that generates permeate and brine streams. A first energy recovery device uses first energy from the second brine stream to pressurize the first brine stream. A first and second auxiliary and bypass valves are associated with the first and second energy recovery device. A second energy recovery device uses second energy from the second brine stream to increase a second pressure of the feed stream. A first flowmeter generates a first flow signal for the first permeate stream. A second flowmeter generates a second flow signal for of the second permeate stream. A third flowmeter generates a third flow signal for the second brine stream. A motor drives the first energy recovery device. A controller controls the in response to the flow signals.
A reverse osmosis system and method includes a pump pressurizing a feed stream, a first and second membrane array that generates permeate and brine streams. A first energy recovery device uses first energy from the second brine stream to pressurize the first brine stream. A first and second auxiliary and bypass valves are associated with the first and second energy recovery device. A second energy recovery device uses second energy from the second brine stream to increase a second pressure of the feed stream. A first flowmeter generates a first flow signal for the first permeate stream. A second flowmeter generates a second flow signal for of the second permeate stream. A third flowmeter generates a third flow signal for the second brine stream. A motor drives the first energy recovery device. A controller controls the in response to the flow signals.
An elongated tank for a slurry injection system has a side wall disposed in a vertical direction and top wall. The tank further comprises an end cap coupled to the side wall comprising a slurry injection channel and defining a bottom side of the tank. The bottom side is angled downward from the side wall toward the slurring injection channel.
F04F 13/00 - POMPAGE DE FLUIDE PAR CONTACT DIRECT AVEC UN AUTRE FLUIDE OU PAR UTILISATION DE L'INERTIE DU FLUIDE À POMPER; SIPHONS Échangeurs de pression
E21B 21/06 - Dispositions pour traiter les fluides de forage à l'extérieur du trou de forage
E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
A reverse osmosis system and method includes a pump pressurizing a feed stream, a first and second membrane array that generates permeate and brine streams. A first energy recovery device uses first energy from the second brine stream to pressurize the first brine stream. A first and second auxiliary and bypass valves are associated with the first and second energy recovery device. A second energy recovery device uses second energy from the second brine stream to increase a second pressure of the feed stream. A first flowmeter generates a first flow signal for the first permeate stream. A second flowmeter generates a second flow signal for of the second permeate stream. A third flowmeter generates a third flow signal for the second brine stream. A motor drives the first energy recovery device. A controller controls the in response to the flow signals.
A fluid machine and method of operating the same includes a pump portion having a pump impeller chamber, a pump inlet and a pump outlet, a turbine portion having a turbine impeller chamber, a turbine inlet and a turbine outlet and a shaft extending between the pump impeller chamber and the turbine impeller chamber. The fluid machine also includes a first bearing and a second bearing spaced apart to form a balance disk chamber. A balance disk is coupled to the shaft and is disposed within the balance disk chamber and a turbine impeller coupled to the impeller end of the shaft disposed within the impeller chamber. A first thrust bearing is formed between the balance disk and the first bearing. The thrust bearing receives fluid from at least one of the pump outlet or the turbine inlet.
A slurry injection system having a plurality of clear fluid pumps receiving clear fluid from a low pressure clear fluid manifold and pressurizing the clear fluid into high pressure clear fluid and communicating the high pressure clear fluid into the high pressure clear fluid manifold. A blender unit having low pressure slurry therein. A mixer receives clear fluid through a first valve. A slurry pressurizer in fluid communication with the high pressure clear fluid manifold through a second valve. The slurry pressurizer forms high pressure slurry by pressurizing the low pressure slurry from the blender unit using high pressure manifold clear fluid that is communicated to the mixer and communicates low pressure fluid to the low pressure clear fluid manifold. The mixer mixes the high pressure slurry and clear fluid from the first valve to form a mixture that is communicated to a slurry injection site.
A system and method for injecting slurry includes first and second elongated tanks. Tanks include pipes extending therefrom. Slurry valves and clear fluid valves are fluidically are coupled the first and second elongated tanks. Slurry valves have a first state communicating high pressure slurry from a second volume of the first tank to the injection site and communicating low pressure slurry to a fourth volume of the second tank, and a second state communicating low pressure slurry to the second volume and high pressure slurry from the fourth volume to the injection site. The clear fluid valves communicate pressurized clear fluid to the first volume of the first tank and communicate low pressure clear fluid from the third volume of the second tank in a first state and communicating low pressure clear fluid to the first volume and pressurized clear fluid to the third volume in a second state.
G05D 7/06 - Commande de débits caractérisée par l'utilisation de moyens électriques
F16K 11/048 - 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 sièges de soupape ou de clapet situés entre des corps de soupape ou de clapet mobiles
F16K 11/044 - 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 ou de clapet mobiles situés entre des sièges de soupape ou de clapet
A slurry injection system and method for operating the same has a plurality of clear fluid pumps receiving clear fluid from a low pressure clear fluid manifold, pressurizing the clear fluid into high pressure clear fluid and communicating the high pressure clear fluid into the high pressure clear fluid manifold. A blender unit has low pressure slurry therein. A mixer receives clear fluid. A slurry pressurizer is in fluid communication with the high pressure clear fluid manifold through a bypass pump. The slurry pressurizer forms high pressure slurry by pressurizing the low pressure slurry from the blender unit using high pressure manifold clear fluid that is communicated to the mixer and communicates low pressure fluid to the low pressure clear fluid manifold. The mixer mixes the high pressure slurry and clear fluid to form a mixture that is communicated to a slurry injection site.
F04D 7/04 - Pompes adaptées à la manipulation de liquides particuliers, p.ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge les fluides étant visqueux ou non homogènes
F04B 15/02 - Pompes adaptées pour travailler avec des fluides particuliers, p.ex. grâce à l'emploi de matériaux spécifiés pour la pompe elle-même ou certaines de ses parties les fluides étant visqueux ou non homogènes
F04D 15/00 - Commande, p.ex.régulation de pompes, d'installations ou de systèmes de pompage
A system and method for injecting slurry includes a first elongated tank comprising a first end having a first volume and a second end having a second volume, said first volume separated from the second volume, a first pipe having a first end external to the first elongated tank receiving clear fluid and a second end coupled to the first volume and a plurality of slurry valves fluidically coupled to the first elongated tank. The plurality of slurry valves have a first state communicating high pressure slurry from the second volume to the slurry injection site and a second state communicating low pressure slurry into the second volume. A plurality of clear fluid valves are fluidically coupled to the first elongated tank and communicate high pressure clear fluid to the first volume in the first state and communicate low pressure clear fluid from the first volume in the second state.
G05D 7/06 - Commande de débits caractérisée par l'utilisation de moyens électriques
F16K 11/048 - 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 sièges de soupape ou de clapet situés entre des corps de soupape ou de clapet mobiles
F16K 11/044 - 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 ou de clapet mobiles situés entre des sièges de soupape ou de clapet
A slurry injection system has a plurality of slurry valves fluidically coupled to first and second elongated tanks. In the first state, the slurry valves communicate high pressure slurry from the second volume to a site and communicate low pressure slurry to the fourth volume. In the second state, the slurry valves communicate low pressure slurry to the second volume and high pressure slurry from the fourth volume to the slurry injection site and in the intermediate state communicating high pressure slurry simultaneously from the first elongated tank and the second elongated tank to the slurry injection site. In the first state clear fluid valves fluidically communicate high pressure clear fluid to the first volume and low pressure clear fluid from the third volume and, in a second state, communicate low pressure clear fluid from the first volume and high pressure clear fluid to the third volume.
F04D 7/04 - Pompes adaptées à la manipulation de liquides particuliers, p.ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge les fluides étant visqueux ou non homogènes
E21B 34/02 - Aménagements des vannes pour les trous de forage ou pour les puits dans les têtes de puits
F16K 11/10 - 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 plusieurs éléments de fermeture ne se déplacent pas comme un tout
A reverse osmosis system and method of operating the same includes a membrane housing comprising a reverse osmosis membrane therein. The membrane housing has a feed fluid input, a brine outlet and a permeate outlet; The system further includes a charge pump, a plurality of valves and a tank having a volume comprising a movable partition dividing the volume into a first volume and a second volume. The plurality of valves selectively couples the charge pump to the first volume or the second volume and the brine outlet to the second volume or the first volume respectively.
A pressure intensifier system includes a housing including a piston separating a first volume and a second volume. A high pressure pump, a low pressure manifold are coupled to a drain line and a slurry tank. A plurality of valves comprise a first state coupling the high pressure pump to the first volume and coupling the second volume to the low pressure manifold so a first portion of fluid in the second volume is communicated to the slurry tank and a second portion of the fluid is communicated to the drain. The valves comprise a second state coupling the high pressure pump to the second volume and coupling the first volume to the low pressure manifold so a first portion of fluid in the first volume is in communication with the slurry tank and a second portion of the fluid in first volume is in communication with the drain.
F04B 9/113 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant à fluide le fluide étant liquide avec plusieurs chambres de pompage avec deux organes de pompage liés mécaniquement le mouvement alternatif des organes de pompage étant obtenu par un moteur hydraulique à double effet
F04B 49/22 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes par clapets
F04B 23/02 - Installations ou systèmes de pompage comportant des réservoirs
E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
42.
METHOD AND SYSTEM FOR PERFORMING A BATCH REVERSE OSMOSIS PROCESS USING A TANK WITH A MOVABLE PARTITION
A reverse osmosis system and method of operating the same includes a membrane housing comprising a reverse osmosis membrane therein. The membrane housing has a feed fluid input, a brine outlet and a permeate outlet; The system further includes a charge pump, a plurality of valves and a tank having a volume comprising a movable partition dividing the volume into a first volume and a second volume. The plurality of valves selectively couples the charge pump to the first volume or the second volume and the brine outlet to the second volume or the first volume respectively.
A reverse osmosis system and method of operating the same includes a membrane housing comprising a reverse osmosis membrane therein. The membrane housing has a feed fluid input, a brine outlet and a permeate outlet; The system further includes a charge pump, a plurality of valves and a tank having a volume comprising a movable partition dividing the volume into a first volume and a second volume. The plurality of valves selectively couples the charge pump to the first volume or the second volume and the brine outlet to the second volume or the first volume respectively.
A reverse osmosis system and method of operating the same includes a membrane housing comprising a reverse osmosis membrane therein. The rnembrane housing has a feed fluid input, a brine outlet and a permeate outlet; The system further includes a charge pump, a plurality of valves and a tank having a volume comprising a rnovable partition dividing the volume into a first volume and a second volume. The plurality of valves selectively couples the charge pump to the first volume or the second volume and the brine outlet to the second volume or the first volume respectively.
A reverse osmosis system and method of operating the same includes a membrane housing comprising a reverse osmosis membrane therein. The membrane housing has a feed fluid input, a brine outlet and a permeate outlet; The system further includes a charge pump, a plurality of valves and a tank having a volume comprising a movable partition dividing the volume into a first volume and a second volume. The plurality of valves selectively couples the charge pump to the first volume or the second volume and the brine outlet to the second volume or the first volume respectively.
A reverse osmosis system includes a membrane chamber having a feed line. The chamber generates a permeate stream and a brine stream from the feed line. A feed pump pressurizes the feed line. A first flow meter generates a first flow signal corresponding to a flow of fluid in the permeate stream. A booster device has a turbine in fluid communication with the brine stream and a pump in fluid communication with the feed line. A motor is coupled to the turbine device and a variable frequency drive is attached to the turbine device operating in response to the first flow signal. A second flow meter generates a second flow signal corresponding to a flow of fluid in the brine stream and a variable size nozzle operates an opening in response to the second flow meter.
A system and method of operating the same includes a first fluid cylinder having a first process fluid end and a first drive fluid end. The first cylinder comprising a first process fluid inlet port and a first process fluid outlet port disposed at the first process fluid end of the first fluid cylinder and first drive fluid inlet port and a first drive fluid outlet port disposed at the first fluid end of the first fluid cylinder. The first fluid cylinder is oriented vertically. A first liquid fluid interface is disposed between the first process fluid end and the first drive fluid end to divide the first fluid cylinder into a first process fluid portion and a first drive fluid portion. A first pump pumps drive fluid to the drive fluid portion to drive the fluid interface to pressurize the process fluid.
F04F 1/06 - Pompes utilisant un fluide intermédiaire, en surpression ou en sous-pression, agissant directement sur le liquide à pomper le fluide intermédiaire agissant sur la surface du liquide à pomper
F04B 23/06 - Combinaisons de plusieurs pompes les pompes étant toutes du type à déplacement positif alternatif
F04B 15/00 - Pompes adaptées pour travailler avec des fluides particuliers, p.ex. grâce à l'emploi de matériaux spécifiés pour la pompe elle-même ou certaines de ses parties
F04B 19/22 - Autres pompes à déplacement positif du type à piston alternatif
F04B 53/14 - Pistons, tiges de piston ou liaisons piston-tige
F04B 53/16 - Carcasses d'enveloppe; Cylindres; Chemises de cylindre ou culasses; Connexions des tubulures pour fluide
F04B 9/08 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant à fluide
F04B 15/02 - Pompes adaptées pour travailler avec des fluides particuliers, p.ex. grâce à l'emploi de matériaux spécifiés pour la pompe elle-même ou certaines de ses parties les fluides étant visqueux ou non homogènes
48.
METHOD AND SYSTEM FOR GENERATING CAVITATION IN A FLUID
A cavitation plate and system comprises a plurality of flow elements through the thickness of the cavitation plate. Each of the plurality of flow elements comprises an inlet channel a converging nozzle coupled to the inlet channel, a throat in fluid communicating with the converging nozzle, a diverging diffuser in fluid communication with the throat and an outlet channel in fluid communication with the diverging diffuser.
A cavitation plate and system comprises a plurality of flow elements through the thickness of the cavitation plate. Each of the plurality of flow elements comprises an inlet channel a converging nozzle coupled to the inlet channel, a throat in fluid communicating with the converging nozzle, a diverging diffuser in fluid communication with the throat and an outlet channel in fluid communication with the diverging diffuser.
A turbine and method of operating a turbine includes a housing (202) having an inlet (24), a volute (232) and an outlet (30). The inlet (24) is coupled to the volute (232) through a primary fluid path (240) and a secondary fluid path (242). The turbine further includes an impeller (228) rotatably coupled to the housing (202) and a hydraulically actuated valve assembly (204) disposed within the secondary fluid path (242) selectively communicating fluid from the inlet (24) to the volute. The turbine includes a hydraulic actuator coupled to the valve assembly (204) moving the valve assembly (204) from a first position communicating fluid from the inlet into the volute to a second position blocking flow from the inlet to the volute.
A turbine and method of operating a turbine includes a housing having an inlet, a volute and an outlet. The inlet is coupled to the volute through a primary fluid path and a secondary fluid path. The turbine further includes an impeller rotatably coupled to the housing and a hydraulically actuated valve assembly disposed within the secondary fluid path selectively communicating fluid from the inlet to the volute. The turbine includes a hydraulic actuator coupled to the valve assembly moving the valve assembly from a first position communicating fluid from the inlet into the volute to a second position blocking flow from the inlet to the volute.
A turbine and method of operating the same a turbine includes a housing (202) having a volute (232), an inlet (24) and an outlet (30) an impeller (224) rotatable coupled to the housing, a first shroud (228) disposed within the housing comprising a plurality of nozzle vanes (234) and a second shroud (230) disposed within the housing adjacent to the first shroud so that a nozzle area is formed between the first shroud and the second shroud, said nozzle area having a variable width (240). The second shroud is movable relative to the first shroud to vary the width so that fluid flow from the inlet to the outlet is variable.
F01D 17/14 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage
A fluid machine in communication with a thrust bearing fluid source includes a housing having a bearing portion receiving fluid from the fluid source. A bearing chamber is formed in the bearing portion. An extension of a rotor is positioned within the bearing chamber so that a first pocket is disposed adjacent to a first side of the extension and a second pocket is disposed adjacent to a second side of the extension. An extension lateral side is adjacent to the bearing chamber lateral side. The extension comprises a first channel extending from a first half of the extension lateral side to the first pocket. The extension comprises a second channel extending from a second half of the extension lateral side opposite the first channel to the second pocket. The bearing chamber receives fluid from the bearing channel which is communicated to the first and second channels and the pockets.
F16C 32/06 - Paliers non prévus ailleurs comprenant un élément mobile supporté par un coussinet de fluide engendré, au moins en grande partie, autrement que par la rotation de l'arbre, p.ex. paliers hydrostatiques à coussinet d'air
A turbine and method of operating the same a turbine includes a housing having a volute, an inlet and an outlet an impeller rotatable coupled to the housing, a first shroud disposed within the housing comprising a plurality of nozzle vanes and a second shroud disposed within the housing adjacent to the first shroud so that a nozzle area is formed between the first shroud and the second shroud, said nozzle area having a variable width. The second shroud is movable relative to the first shroud to vary the width so that fluid flow from the inlet to the outlet is variable.
F01D 17/00 - Régulation ou commande par variation de flux
F01D 1/02 - "Machines" ou machines motrices à déplacement non positif, p.ex. turbines à vapeur avec des moyens stationnaires de guidage de fluide de travail et un rotor à ailettes ou de structure analogue
F01D 17/14 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage
A fluid machine (16) in communication with a thrust bearing fluid source (410) includes a housing (110) having a bearing portion (420) receiving fluid from the fluid source. A bearing chamber (422) is formed in the bearing portion (420). An extension (452) of a rotor (450) is positioned within the bearing chamber (422) so that a first pocket (460) is disposed adjacent to a first side (454) of the extension (452) and a second pocket (464) is disposed adjacent to a second side (456) of the extension. An extension lateral side (458) is adjacent to the bearing chamber lateral side (430). The extension (452) comprises a first channel (482) extending from a first half (481) of the extension lateral side to the first pocket (460). The extension (452) comprises a second channel (482') extending from a second half (481') of the extension lateral side opposite the first channel (482) to the second pocket (464). The bearing chamber (422) receives fluid from the bearing channel (431) which is communicated to the first (482) and second (482') channels and the pockets (460, 464).
A fluid machine has a housing and a rotating portion that rotates relative to and is at least partially disposed within the housing. The housing is coupled to a seal assembly comprising a plurality of seal channels having a plurality of seal rings. Each of the plurality of seal channels comprises a respective one of the plurality of seal rings.
A throttle housing having an inlet end and an outlet end includes a shuttle housing disposed within the throttle housing. The shuttle housing has a first end cap at a first end and an orifice array therethrough. The shuttle housing comprises a shuttle housing therein. The shuttle has an opened position and a closed position relative to the shuttle housing. The shuttle defines a varying control volume between the end cap, the shuttle and the shuttle housing. The control inlet fluidically communicates a control fluid to the control volume to control the position of the shuttle in the shuttle housing.
F16K 31/42 - Moyens de fonctionnement; Dispositifs de retour à la position de repos actionnés par un fluide et au moyen d'organes actionnés électriquement dans les canalisations d'entrée ou de refoulement du moteur à fluide
F16K 3/24 - Robinets-vannes ou tiroirs, c. à d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation en forme de surfaces de solides de révolution avec corps de tiroir cylindrique
F16K 31/124 - Moyens de fonctionnement; Dispositifs de retour à la position de repos actionnés par un fluide le fluide agissant sur un piston servo-commandé
F16K 47/08 - Moyens incorporés aux soupapes pour absorber l'énergie d'un fluide pour diminuer la pression, l'organe régulateur étant distinct de l'élément de fermeture
F16K 31/122 - Moyens de fonctionnement; Dispositifs de retour à la position de repos actionnés par un fluide le fluide agissant sur un piston
58.
Method and apparatus for sealing a rotating machine using floating seals
A fluid machine has a housing and a rotating portion that rotates relative to and is at least partially disposed within the housing. The housing is coupled to a seal assembly comprising a plurality of seal channels having a plurality of seal rings. Each of the plurality of seal channels comprises a respective one of the plurality of seal rings.
A throttle housing (12) having an inlet end (14) and an outlet end (16) includes a shuttle housing (30) disposed within the throttle housing (12). The shuttle housing (30) has a first end cap (36) at a first end (32) and an orifice array (38) therethrough. The shuttle housing (30) comprises a shuttle housing therein. The shuttle (40) has an opened position and a closed position relative to the shuttle housing (30). The shuttle (40) defines a varying control volume (50) between the end cap (36), the shuttle (40) and the shuttle housing (30). The control inlet (62) fluidically communicates a control fluid to the control volume (50) to control the position of the shuttle (40) in the shuttle housing (30).
F16K 31/122 - Moyens de fonctionnement; Dispositifs de retour à la position de repos actionnés par un fluide le fluide agissant sur un piston
F16K 3/24 - Robinets-vannes ou tiroirs, c. à d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation en forme de surfaces de solides de révolution avec corps de tiroir cylindrique
60.
Central pumping and energy recovery in a reverse osmosis system
A reverse osmosis system includes a plurality of feed pumps each having a feed pump input and a feed pump output, an input manifold in fluid communication with the feed pump inputs and a membrane feed manifold in fluid communication with the feed pump output. The system also includes a plurality of membrane chambers each in fluid communication with the membrane feed manifold and generating a permeate output and a brine output, each brine output in fluid communication with a brine manifold. The system further includes a plurality of booster devices each having a turbine portion with a turbine input in fluid communication with the brine manifold and a pump portion having a booster device pump input and a booster device pump output, each booster device pump output in fluid communication with the membrane feed manifold. The system includes a pump input manifold in fluid communication with the booster device pump input. The system also includes a medium pressure pump in fluid communication with the input manifold and the pump input manifold.
A system and method of operating the same includes an absorption tank having a compressor communicating gas thereto, a suspended solid filtration tank having a primary inlet, a secondary inlet, a primary outlet and a secondary outlet and a pump comprising a pump inlet coupled to the secondary outlet and a pump outlet communicating fluid to the absorption tank. The absorption tank forms a solution from the fluid and gas. A turbine mechanically couples the pump with a common shaft extending to the pump. The turbine has a turbine inlet coupled to the absorption tank and a turbine outlet coupled to the secondary inlet. The turbine depressurizes the solution. The system may also use a centrifugal pump in place of a turbine and absorption tank.
A system and method of operating the same includes an absorption tank having a compressor communicating gas thereto, a suspended solid filtration tank having a primary inlet, a secondary inlet, a primary outlet and a secondary outlet and a pump comprising a pump inlet coupled to the secondary outlet and a pump outlet communicating fluid to the absorption tank. The absorption tank forms a solution from the fluid and gas. A turbine mechanically couples the pump with a common shaft extending to the pump. The turbine has a turbine inlet coupled to the absorption tank and a turbine outlet coupled to the secondary inlet. The turbine depressurizes the solution. The system may also use a centrifugal pump in place of a turbine and absorption tank.
B01F 3/04 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de gaz ou de vapeurs avec des liquides
F04D 7/04 - Pompes adaptées à la manipulation de liquides particuliers, p.ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge les fluides étant visqueux ou non homogènes
F04D 31/00 - Pompage simultané de liquides et de fluides compressibles
63.
REVERSE OSMOSIS SYSTEM WITH ENERGY RECOVERY DEVICES
A reverse osmosis system according to the present disclosure includes a first membrane array (202), a second membrane array (204), a hydraulic pressure booster (206), and a motor-generator (208). The first membrane array is configured to generate a first permeate stream and a first brine stream from a feed stream. The second membrane array is configured to generate a second permeate stream and a second brine stream from the first brine stream. The booster is configured to use energy from the second brine stream (226) to increase pressure of at least one of the feed stream and the first brine stream (212). The motor-generator is coupled to the hydraulic pressure booster and is operable to use energy from a power supply to drive the hydraulic pressure booster. The motor- generator is also operable to use energy from the second brine stream to provide power to the power supply.
A reverse osmosis system according to the present disclosure includes a first membrane array, a second membrane array, a hydraulic pressure booster, and a motor-generator. The first membrane array is configured to generate a first permeate stream and a first brine stream from a feed stream. The second membrane array is configured to generate a second permeate stream and a second brine stream from the first brine stream. The booster is configured to use energy from the second brine stream to increase pressure of at least one of the feed stream and the first brine stream. The motor-generator is coupled to the hydraulic pressure booster and is operable to use energy from a power supply to drive the hydraulic pressure booster. The motor-generator is also operable to use energy from the second brine stream to provide power to the power supply.
A turbine and method of operating the same includes a housing having a volute and an outlet and an impeller rotatable coupled to the housing. The turbine includes a nozzle ring having a plurality of primary nozzles and a plurality of secondary nozzles. The plurality of primary nozzles and the plurality of secondary nozzles direct fluid toward the impeller. An auxiliary valve assembly selectively communicates fluid from the volute to the plurality of secondary nozzles. An actuator is coupled to the valve auxiliary assembly moving the auxiliary valve assembly from a first position communicating fluid from the volute into the secondary nozzles to a second position blocking flow of fluid to the secondary nozzles.
F03B 3/02 - "MACHINES" OU MACHINES MOTRICES À LIQUIDES - Parties constitutives ou détails particuliers les concernant à écoulement radial du côté haute pression et écoulement axial du côté basse pression des rotors, p.ex. turbines Francis
F03B 3/18 - Aubes de stators; Aubes distributrices, p.ex. réglables
F03B 11/00 - "MACHINES" OU MACHINES MOTRICES À LIQUIDES - Parties constitutives ou détails non couverts par les groupes ou présentant un intérêt autre que celui visé par ces groupes
F03B 15/04 - Commande par variation de l'écoulement du liquide dans les turbines
66.
METHOD AND SYSTEM FOR TUNING A HYDRAULIC TURBINE USING SECONDARY INJECTION NOZZLES IN NOZZLE RING
A turbine and method of operating the same includes a housing having a volute and an outlet and an impeller rotatable coupled to the housing. The turbine includes a nozzle ring having a plurality of primary nozzles and a plurality of secondary nozzles. The plurality of primary nozzles and the plurality of secondary nozzles direct fluid toward the impeller. An auxiliary valve assembly selectively communicates fluid from the volute to the plurality of secondary nozzles. An actuator is coupled to the valve auxiliary assembly moving the auxiliary valve assembly from a first position communicating fluid from the volute into the secondary nozzles to a second position blocking flow of fluid to the secondary nozzles.
F03B 3/02 - "MACHINES" OU MACHINES MOTRICES À LIQUIDES - Parties constitutives ou détails particuliers les concernant à écoulement radial du côté haute pression et écoulement axial du côté basse pression des rotors, p.ex. turbines Francis
F03B 3/18 - Aubes de stators; Aubes distributrices, p.ex. réglables
F03B 11/00 - "MACHINES" OU MACHINES MOTRICES À LIQUIDES - Parties constitutives ou détails non couverts par les groupes ou présentant un intérêt autre que celui visé par ces groupes
F03B 15/04 - Commande par variation de l'écoulement du liquide dans les turbines
67.
Continuous process batch-operated reverse osmosis system with in-tank membranes and circulation
A reverse osmosis system and method for operating the same includes a pressure tank having a first end and a second end, the pressure tank has a first volume adjacent to the first end and a second volume adjacent to the second end and a third volume between the first volume and the second volume and a fluid passage fluidically coupling the second volume to the first volume. The reverse osmosis system also includes a plurality of membranes disposed within the third volume generating permeate and a permeate manifold receiving permeate from the membranes and fluidically communicating permeate out of the pressure tank. A feed line couples feed fluid into the pressure tank. A first pump pressurizes the feed line. A second pump is disposed within the tank and circulates brine fluid from the second volume through the fluid passage.
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p.ex. dialyse, osmose ou ultrafiltration; Appareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
68.
Reverse osmosis system with control based on flow rates in the permeate and brine streams
A reverse osmosis system includes a membrane chamber having a feed line. The chamber generates a permeate stream and a brine stream from the feed line. A feed pump pressurizes the feed line. A first flow meter generates a first flow signal corresponding to a flow of fluid in the permeate stream. A booster device has a turbine in fluid communication with the brine stream and a pump in fluid communication with the feed line. A motor is coupled to the turbine device and a variable frequency drive is attached to the turbine device operating in response to the first flow signal. A second flow meter generates a second flow signal corresponding to a flow of fluid in the brine stream and a variable size nozzle operates an opening in response to the second flow meter.
A reverse osmosis system and method of operating the same includes a first pump (28) receiving feed fluid at a first pressure and increasingly pressurizing the feed fluid to a second pressure higher than the first pressure and comprising hydraulic energy management integration system (HEMI) having a turbine portion (114), a pump portion (112) and a motor (116). The brine outlet fluid is in fluid communication with the turbine portion. The reverse osmosis system also includes a second pump (20) and a controller controlling the motor to retard rotation of the HEMI while the first pump increasingly pressurizes the feed fluid to the second pressure. The controller (140) also increases a HEMI speed so that feed fluid pressure increases above the second pressure, and, when a feed fluid reaches the second pressure at the fluid inlet, controls the second pump to increase the feed fluid pressure to a third pressure. The controller to reduces the HEMI speed after the third pressure and changes the HEMI speed based on a membrane pressure.
A reverse osmosis system and method of operating the same includes a first pump receiving feed fluid at a first pressure and increasingly pressurizing the feed fluid to a second pressure higher than the first pressure. A membrane housing having an inlet, a membrane, a permeate outlet and a brine outlet. The inlet receiving feed fluid. A hydraulic energy management integration system (HEMI) having a turbine portion, a pump portion and a motor. The brine outlet fluid is in fluid communication with the turbine portion. The reverse osmosis system also includes a second pump and a controller controlling the motor to retard rotation of the HEMI while the first pump increasingly pressurizes the feed fluid to the second pressure. The controller also controls the motor to increase a HEMI speed so that feed fluid pressure increases above the second pressure after the second pressure is reached, and, when a feed fluid reaches the second pressure at the fluid inlet, controls the second pump to increase the feed fluid pressure to a third pressure. The controller controls the motor to reduce the HEMI speed after the third pressure and controls the motor to change the HEMI speed based on a membrane pressure.
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p.ex. dialyse, osmose ou ultrafiltration; Appareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
An osmotic power generation system and method for generating osmotic power includes a membrane chamber having a semi-permeable membrane therein defining a first portion and a second portion therein. The system also includes a first pump communicating a first fluid to the first portion and a second pump communicating a second fluid to the second portion. The second fluid has higher total dissolved solids than the first fluid. A second portion energy recovery device is in fluid communication with the second portion. A power generator is in communication with the second portion energy recovery device generating electrical power in response to the second portion energy recovery device and the pressure in the second portion.
An osmotic power generation system and method for generating osmotic power includes a membrane chamber having a semi-permeable membrane therein defining a first portion and a second portion therein. The system also includes a first pump communicating a first fluid to the first portion and a second pump communicating a second fluid to the second portion. The second fluid has higher total dissolved solids than the first fluid. A second portion energy recovery device is in fluid communication with the second portion. A power generator is in communication with the second portion energy recovery device generating electrical power in response to the second portion energy recovery device and the pressure in the second portion.
F03G 7/00 - Mécanismes produisant une puissance mécanique, non prévus ailleurs ou utilisant une source d'énergie non prévue ailleurs
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p.ex. dialyse, osmose ou ultrafiltration; Appareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
A control device (40) is provided with a switching valve mechanism (41) and first and second actuators (71, 79). The switching valve mechanism (41) is provided with a valve element (61) for switching which is located within a casing (42). The valve element (61) can linearly move between an open position at which first and second pressure change chambers (45, 47) of the casing (42) are communicated with each other and a closed position at which the communication is interrupted. The valve element (61) is held at the open position and the closed position by a first holding mechanism (toggle spring (70)). When a float (72) ascends to a first water level (HWL), the first actuator (71) moves the valve element (61) from the closed position to the open position. When the degree of vacuum within a pressure detection chamber (94) becomes a second degree (P2) of vacuum or less, the second actuator (79) moves the valve element (61) from the open position to the closed position.
E03F 5/22 - Adaptations d'installations de pompage pour remonter les eaux d'égout
E03F 7/00 - Autres installations ou appareillage pour le fonctionnement des égouts, p.ex. pour empêcher ou signaler son arrêt; Vidange des fosses d'aisances
74.
CONTINUOUS PROCESS BATCH-OPERATED REVERSE OSMOSIS SYSTEM WITH IN-TANK MEMBRANES AND CIRCULATION OF CONCENTRATE
A reverse osmosis system and method for operating the same includes a pressure tank having a first end and a second end, the pressure tank has a first volume adjacent to the first end and a second volume adjacent to the second end and a third volume between the first volume and the second volume and a fluid passage within the tank fluidically coupling the second volume to the first volume. At least one tube sheet separates and prevents the flow of brine direclty between the second volume and the third volume. The tube sheets ensure that the brine passes through the tubes comprising membranes, that are disposed within the third volume. The membranes generate permeate and a permeate manifold receives the permeate from the membranes and fluidically communicates the permeate out of the pressure tank. A feed line couples feed fluid into the pressure tank. A first pump pressurizes the feed line. A second pump is disposed within the tank and circulates brine fluid from the second volume through the fluid passage.
A reverse osmosis system and method for operating the same includes a pressure tank having a first end and a second end, the pressure tank has a first volume adjacent to the first end and a second volume adjacent to the second end and a third volume between the first volume and the second volume and a fluid passage fluidically coupling the second volume to the first volume. The reverse osmosis system also includes a plurality of membranes disposed within the third volume generating permeate and a permeate manifold receiving permeate from the membranes and fluidically communicating permeate out of the pressure tank. A feed line couples feed fluid into the pressure tank. A first pump pressurizes the feed line. A second pump is disposed within the tank and circulates brine fluid from the second volume through the fluid passage.
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p.ex. dialyse, osmose ou ultrafiltration; Appareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
76.
Method and apparatus for lubricating a thrust bearing for a rotating machine using pumpage
A fluid machine and method of operating the same includes a pump portion having a pump impeller chamber, a pump inlet and a pump outlet and a turbine portion having a turbine impeller chamber, a turbine inlet and a turbine outlet. A shaft extends between the pump impeller chamber and the turbine impeller chamber. The shaft has a shaft passage therethrough. A turbine impeller is coupled to the impeller end of the shaft disposed within the impeller chamber. The turbine impeller has vanes at least one of which comprises a vane passage therethrough. A thrust bearing is in fluid communication with said vane passage.
F01D 3/02 - "Machines" ou machines motrices avec équilibrage des poussées axiales effectué par le fluide énergétique caractérisées par le fait d'avoir un écoulement de fluide dans une direction axiale et un autre dans la direction opposée
77.
METHOD AND APPARATUS FOR LUBRICATING A THRUST BEARING FOR A ROTATING MACHINE USING PUMPAGE
A fluid machine and method of operating the same includes a pump portion (16) having a pump impeller chamber (23), a pump inlet (30) and a pump outlet (32) and a turbine portion (18) having a turbine impeller chamber (41), a turbine inlet (42) and a turbine outlet (44),. A shaft (20) extends between the pump impeller chamber and the turbine impeller chamber. The shaft has a shaft passage (70) therethrough. A turbine impeller (40) is coupled to the impeller end of the shaft disposed within the impeller chamber. The turbine impeller has vanes ( 76 A-D) at least one of which comprises a vane passage (74) therethrough. A thrust bearing (54) is in fluid communication with said vane passage.
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Pumps for use in power-generating plants; Pumps for use in seawater desalination plants; Pumps for use in petrochemical plants; Pumps for use in water supply (waterworks) equipment; Pumps for use in the sewage treatment equipment; Agricultural pump stations; Drainage pump for flood control; Feed pumps; Pumps for air-conditioning and/or air-heating/cooling apparatus; Pumps (machines); Pumps (parts of machines, engines or motors); Blowers (machines); Pneumatic or hydraulic machines and instruments; Pumping units (machines); Pump installations; Machines and apparatus for use in power plants; Wind-powered electricity generators; Water-powered electricity generators; Power generating apparatus utilizing biomass gases; Power generating apparatus for cogeneration systems; Power generating machines; Power installations (generators); Motors, electric, other than for land vehicles; Machines for water drainage; Apparatus for waste sewage treatment (machines); Water distribution machines; Machines and apparatus for waste disposal; Motors, other than for land vehicles; Turbines, other than for land vehicles; Hydraulic engines and motors; Hydraulic turbines; Non-electric prime movers (not for land vehicles); Molds (parts of machines); Metalworking machines and tools; Bearings (parts of machines); Bearing brackets for machines; Ball rings for bearings; Gears for machines; Machine wheelwork; Oil rings (parts of machines); Grease boxes (parts of machines); Joints (parts of engines); Universal joints (Cardan joints); Shaft couplings (machines); Journal boxes (parts of machines); Pulleys; Speed governors for machines, engines and motors; Transmission shafts, other than for land vehicles; Transmissions, other than for land vehicles; Journals (parts of machines); Piston segments; Piston rings; Pistons (parts of machines or engines); Machine elements (not for land vehicles); Heat exchangers (parts of machines); Vapor condensers (parts of machines); Controllers for machines, motors or engines; Control cables for machines, motors or engines; Guards (parts of machines); Guidance apparatus for machines; Holders for machine tools; Hoods (parts of machines); Housings (parts of machines); Machinery mounts; Heat pumps (parts of machines); Chemical processing machines and apparatus; all aforementioned goods not being or consisting of valves; Parts and fittings for all the aforesaid goods not being or consisting of valves. Desalination plants; Apparatus for waste sewage treatment (installations); Sewage treatment plants; Sludge treatment apparatus; Waste water purification tanks; Tanks for disposable of human waste; Apparatus and installations for sewage purification; Water intake apparatus; Water purification apparatus; Water supply installations; Water sterilizers; Water distribution installations; Irrigation devices (machines) for agricultural use; Automatic watering installations; Air-heating/cooling apparatus utilizing cogeneration systems; Air conditioning apparatus; Air deodorizing apparatus; Air-heating/cooling apparatus; Heat pumps; Boilers, other than parts of machines; Industrial or domestic water heaters utilizing cogeneration systems; Solar water heaters; Power plants; all aforementioned goods not being or consisting of valves; Parts and fittings for all the aforesaid goods not being or consisting of valves. Mechanical seal; Gaskets; Junctions for pipes (not of metal); Packings; Sealant materials. Repair, maintenance, checking and installation of pumps; Repair, maintenance, checking and installation of air heating/cooling apparatus and air conditioning apparatus; Repair, maintenance, checking and installation of irrigation machines and apparatus; Repair, maintenance, checking and installation of electric motors; Repair, maintenance, checking and installation of power generating apparatus; Repair, maintenance, checking and installation of apparatus for sewage water treatment and sludge treatment; Repair, maintenance, checking and installation of desalination plants; Repair, maintenance, checking and installation of water distribution installations; Proving information relating to all the aforesaid services; Consultancy and advisory services relating to all the aforesaid services.
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Pumps for use in power-generating plants; Pumps for use in seawater desalination plants; Pumps for use in petrochemical plants; Pumps for use in water supply (waterworks) equipment; Pumps for use in the sewage treatment equipment; Agricultural pump stations; Drainage pump for flood control; Feed pumps; Pumps for air-conditioning and/or air-heating/cooling apparatus; Pumps (machines); Pumps (parts of machines, engines or motors); Blowers (machines); Pneumatic or hydraulic machines and instruments; Pumping units (machines); Pump installations; Machines and apparatus for use in power plants; Wind-powered electricity generators; Water-powered electricity generators; Power generating apparatus utilizing biomass gases; Power generating apparatus for cogeneration systems; Power generating machines; Power installations (generators); Motors, electric, other than for land vehicles; Machines for water drainage; Apparatus for waste sewage treatment (machines); Water distribution machines; Machines and apparatus for waste disposal; Motors, other than for land vehicles; Turbines, other than for land vehicles; Hydraulic engines and motors; Hydraulic turbines; Non-electric prime movers (not for land vehicles); Molds (parts of machines); Metalworking machines and tools; Bearings (parts of machines); Bearing brackets for machines; Ball rings for bearings; Gears for machines; Machine wheelwork; Oil rings (parts of machines); Grease boxes (parts of machines); Joints (parts of engines); Universal joints (Cardan joints); Shaft couplings (machines); Journal boxes (parts of machines); Pulleys; Speed governors for machines, engines and motors; Transmission shafts, other than for land vehicles; Transmissions, other than for land vehicles; Journals (parts of machines); Piston segments; Piston rings; Pistons (parts of machines or engines); Machine elements (not for land vehicles); Heat exchangers (parts of machines); Vapor condensers (parts of machines); Controllers for machines, motors or engines; Control cables for machines, motors or engines; Guards (parts of machines); Guidance apparatus for machines; Holders for machine tools; Hoods (parts of machines); Housings (parts of machines); Machinery mounts; Heat pumps (parts of machines); Chemical processing machines and apparatus; all aforementioned goods not being or consisting of valves; Parts and fittings for all the aforesaid goods not being or consisting of valves. Desalination plants; Apparatus for waste sewage treatment (installations); Sewage treatment plants; Sludge treatment apparatus; Waste water purification tanks; Tanks for disposable of human waste; Apparatus and installations for sewage purification; Water intake apparatus; Water purification apparatus; Water supply installations; Water sterilizers; Water distribution installations; Irrigation devices (machines) for agricultural use; Automatic watering installations; Air-heating/cooling apparatus utilizing cogeneration systems; Air conditioning apparatus; Air deodorizing apparatus; Air-heating/cooling apparatus; Heat pumps; Boilers, other than parts of machines; Industrial or domestic water heaters utilizing cogeneration systems; Solar water heaters; Power plants; all aforementioned goods not being or consisting of valves; Parts and fittings for all the aforesaid goods not being or consisting of valves. Mechanical seal; Gaskets; Junctions for pipes (not of metal); Packings; Sealant materials. Repair, maintenance, checking and installation of pumps; Repair, maintenance, checking and installation of air heating/cooling apparatus and air conditioning apparatus; Repair, maintenance, checking and installation of irrigation machines and apparatus; Repair, maintenance, checking and installation of electric motors; Repair, maintenance, checking and installation of power generating apparatus; Repair, maintenance, checking and installation of apparatus for sewage water treatment and sludge treatment; Repair, maintenance, checking and installation of desalination plants; Repair, maintenance, checking and installation of water distribution installations; Proving information relating to all the aforesaid services; Consultancy and advisory services relating to all the aforesaid services.
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Repair, maintenance and installation of pumps [ ; Repair, maintenance and installation of air heating/cooling apparatus and air conditioning apparatus; Repair, maintenance and installation of irrigation machines and apparatus; Repair, maintenance and installation of electric motors; Repair, maintenance and installation of power generating apparatus; Repair, maintenance and installation of apparatus for sewage water treatment and sludge treatment; Repair, maintenance and installation of desalination plants; Repair, maintenance and installation of water distribution installations; Proving information on the repair, maintenance and installation of all the aforesaid goods; Consultation services on the repair, maintenance and installation of all the aforesaid goods ] [ Product testing, namely, testing of pumps, heating/cooling apparatus and air conditioning apparatus, irrigation machines and apparatus, electric motors, power generating apparatus, apparatus for sewage water treatment and sludge treatment, desalination plants and water distribution installations ]
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Repair, maintenance and installation of pumps; [ Repair, maintenance and installation of air heating/cooling apparatus and air conditioning apparatus; Repair, maintenance and installation of irrigation machines and apparatus; Repair, maintenance and installation of electric motors; Repair, maintenance and installation of power generating apparatus; Repair, maintenance and installation of apparatus for sewage water treatment and sludge treatment; Repair, maintenance and installation of desalination plants; Repair, maintenance and installation of water distribution installations; Providing information on the repair, maintenance and installation of all the aforesaid goods; Consultation services on the repair, maintenance and installation of all the aforesaid goods ] [ Product testing, namely, testing of pumps, heating/cooling apparatus and air conditioning apparatus, irrigation machines and apparatus, electric motors, power generating apparatus, apparatus for sewage water treatment and sludge treatment, desalination plants and water distribution installations ]
82.
BATCH-OPERATED REVERSE OSMOSIS SYSTEM WITH MANUAL ENERGIZATION
A batch reverse osmosis system in fluid communication with a fluid reservoir (202) and a method for operating the same includes a first housing having an inlet valve in fluid communication with the fluid reservoir. The system also includes a pressure vessel having an elongated liner (230) with a first end and a second end, a membrane (236) disposed within the second end having a membrane inlet, a membrane outlet disposed at the second end and a permeate outlet. The system also includes a recirculation device disposed within the first end of the elongated liner. The recirculation device defines a fluid volume (320) between the recirculation device and the membrane adjacent to the membrane inlet. The system includes a plunger (270) disposed within the housing and an actuator. The housing and the plunger define a chamber (208). The system further includes a hollow pipe (300) coupled to the actuator, whereby the plunger, the hollow pipe and the recirculation device move in response to the actuator (282). The hollow pipe communicates fluid between the chamber and the fluid volume.
A batch reverse osmosis system in fluid communication with a fluid reservoir and a method that includes a housing having an inlet valve in fluid communication with the fluid reservoir. The system also includes a pressure vessel having an elongated liner, a membrane disposed within a second end of the liner and having a membrane inlet, a membrane outlet disposed at the second end and a permeate outlet. The system includes a recirculation piston disposed within the first end that defines a fluid volume between the recirculation piston and the membrane adjacent to the membrane inlet. The housing and a plunger disposed within the housing define a chamber. The plunger is coupled to an actuator. The system includes a hollow pipe with a port that is coupled to the actuator. The hollow pipe communicates fluid between the chamber within the housing and the fluid volume within the pressure vessel.
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p.ex. dialyse, osmose ou ultrafiltration; Appareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
A reverse osmosis system in fluid communication with a fluid reservoir (114) and a method of operating the same includes a pressure vessel (102) having a membrane therein, a high pressure fluid input (108), a low pressure fluid input (110), a permeate output and a brine output. The system further includes a high pressure valve, a low pressure valve and a high pressure pump (116) in fluid communication with the high pressure input through the high pressure valve. The system also includes a low pressure pump (124) in fluid communication with the low pressure input through' the low pressure valve. The high pressure pump and the low pressure pump are in fluid communication with the fluid reservoir. The low pressure pump initially fills or rinses the pressure vessel and the high pressure pump operates during permeate production. Other embodiments use a charge reservoir instead of a low pressure pump.
A reverse osmosis system and method for operating the same includes a fluid reservoir, a valve and brine feed tank (114) in fluid communication with the fluid reservoir through an input. The system also includes a high pressure pump (310) and a pressure vessel in 'fluid communication with the fluid reservoir through the high pressure pump. The pressure vessel (410) comprises a permeate outlet (140). The brine feed tank is in fluid communication with the pressure vessel. During a permeate production cycle, the high pressure pump pumps additional fluid under high pressure from the fluid reservoir into the pressure vessel using a high pressure pump. The pressure vessel communicates brine fluid into the brine feed tank. The high pressure pump raises a pressure in the pressure vessel until an amount of permeate is produced from a permeate output of the pressure vessel. Embodiments include two alternatingly operated brine tanks, gravitational inflow means and multiple feed pressure vessels.
A reverse osmosis system in fluid communication with a fluid reservoir and a method of operating the same includes a pressure vessel having a membrane therein, a high pressure fluid input, a low pressure fluid input, a permeate output and a brine output. The system further includes a high pressure valve, a low pressure valve and a high pressure pump in fluid communication with the high pressure input through the high pressure valve. The system also includes a low pressure pump in fluid communication with the low pressure input through the low pressure valve. The high pressure pump and the low pressure pump are in fluid communication with the fluid reservoir. The low pressure pump initially fills the pressure vessel and the high pressure pump operates during permeate production.
A reverse osmosis system and method for operating the same includes a fluid reservoir, a valve and a brine feed tank in fluid communication with the fluid reservoir through an input. The brine feed tank has brine feed fluid therein. The system also includes a high pressure pump and a pressure vessel in fluid communication with the fluid reservoir through the high pressure pump. The pressure vessel comprises a permeate outlet. The brine feed tank is in fluid communication with the pressure vessel. During a permeate production cycle, the high pressure pump pumps additional fluid under high pressure from the fluid reservoir into the pressure vessel using a high pressure pump. The pressure vessel communicates brine fluid into the brine feed tank. The high pressure pump raises a pressure in the pressure vessel until an amount of permeate is produced from a permeate output of the pressure vessel.
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p.ex. dialyse, osmose ou ultrafiltration; Appareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
88.
CENTRAL PUMPING AND ENERGY RECOVERY IN A REVERSE OSMOSIS SYSTEM
A reverse osmosis system includes a plurality of feed pumps (20) each having a feed pump input and a feed pump output, an input manifold (80) in fluid communication with the feed pump inputs and a membrane feed manifold (82) in fluid communication with the feed pump output. The system also includes a plurality of membrane chambers (12) each in fluid communication with the membrane feed manifold and generating a permeate output and a brine output, each brine output in fluid communication with a brine manifold (104). The system further includes a plurality of booster, devices (212) each having a turbine portion (214) with a turbine input in fluid communication -with the brine manifold and a pump portion (210) having a booster device pump input and a booster device pump output, each booster device pump output in fluid communication with the membrane feed manifold (82). The system includes a pump input manifold (222) in fluid communication with the booster device pump input. The system also includes a medium pressure pump (200) in fluid communication with the input manifold (80) and the pump input manifold (222) '.
A reverse osmosis system includes a plurality of feed pumps each having a feed pump input and a feed pump output, an input manifold in fluid communication with the feed pump inputs and a membrane feed manifold in fluid communication with the feed pump output. The system also includes a plurality of membrane chambers each in fluid communication with the membrane feed manifold and generating a permeate output and a brine output, each brine output in fluid communication with a brine manifold. The system further includes a plurality of booster devices each having a turbine portion with a turbine input in fluid communication with the brine manifold and a pump portion having a booster device pump input and a booster device pump output, each booster device pump output in fluid communication with the membrane feed manifold. The system includes a pump input manifold in fluid communication with the booster device pump input. The system also includes a medium pressure pump in fluid communication with the input manifold and the pump input manifold.
A reverse osmosis system 110 includes a membrane chamber 112 having a feed line. The chamber 112 generates a permeate stream 114 and a brine stream 116 from the feed line 118. A feed pump 120 pressurizes the feed line 118. A first flow meter generates a first flow signal corresponding to a flow of fluid in the permeate stream 214. A booster device 172 has a turbine 176 in fluid communication with the brine stream 116 and a pump 174 in fluid communication with the feed line 118. A motor 178 is coupled to the turbine device 176 and a variable frequency drive 182 is attached to the turbine device 176 operating in response to the first flow signal. A second flow meter 218 generates a second flow signal corresponding to a flow of fluid in the brine stream 116 and a variable size nozzle 240 operates an opening in response to the second flow meter.
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p.ex. dialyse, osmose ou ultrafiltration; Appareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
A centrifugal pump includes a casing having an impeller chamber, an inlet, an outlet, and a bearing chamber. A shaft disposed within the casing has an impeller end and a motor end. The impeller is coupled to the impeller end of the shaft and is disposed within the impeller chamber. A bearing is disposed within the bearing portion. The bearing has an inboard end with an inboard-bearing surface and an outboard end with an outboard-bearing surface. The bearing and the shaft have a bearing clearance therebetween. A disc is coupled to the shaft on the impeller end which is spaced apart from the inboard-bearing surface. A seal ring is disposed between the disc and the inboard-bearing surface. The shaft, the seal ring, the disc, and the inboard-bearing surface define a thrust chamber therebetween. The thrust chamber is in fluid communication with the impeller chamber through the bearing clearance so that an axial thrust in an inboard direction is generated by the thrust chamber.
A reverse osmosis system 110 includes a membrane chamber 112 having a feed line. The chamber 112 generates a permeate stream 114 and a brine stream 116 from the feed line 118. A feed pump 120 pressurizes the feed line 118. A first flow meter generates a first flow signal corresponding to a flow of fluid in the permeate stream 214. A booster device 172 has a turbine 176 in fluid communication with the brine stream 116 and a pump 174 in fluid communication with the feed line 118. A motor 178 is coupled to the turbine device 176 and a variable frequency drive 182 is attached to the turbine device 176 operating in response to the first flow signal. A second flow meter 218 generates a second flow signal corresponding to a flow of fluid in the brine stream 116 and a variable size nozzle 240 operates an opening in response to the second flow meter.
