90 results about "Pressure exchanger" patented technology

A system includes a pressure exchanger configured to exchange pressure between a first fluid and a second fluid. The system further includes a shaft at least partially disposed within the pressure exchanger. The system further includes an electric motor coupled to the shaft. The electric motor is configured to control fluid flow in the pressure exchanger. A controller is configured to receive sensor data from one or more sensors associated with the pressure exchanger and vary proportions of the first fluid and the second fluid entering the pressure exchanger to reduce mixing of the first fluid and the second fluid in the pressure exchanger.

A system includes a pressure exchanger (PX). The PX is coupled to a motor that controls an operating speed of the PX. The system further includes a condenser. An outlet of the condenser is fluidly coupled to a first inlet of the PX. The system further includes a pressure gauge. The pressure gauge is configured to provide first pressure data. The first pressure data is indicative of a pressure of a fluid of the condenser. The system further includes a first controller configured to cause the motor to adjust the operating speed of the PX. The first controller causes the motor to adjust the operating speed of the PX based on the first pressure data.

A pressure exchanger includes a rotor including rotor ducts extending parallel to an axis, a first end cover disposed at a first side of the rotor, and a second end cover disposed at a second side of the rotor. The rotor is configured to rotate about the axis, communicate first fluid and second fluid through the rotor ducts, control pressure of the first fluid or the second fluid discharging from the rotor, and allow a least a portion of the first fluid to contact the second end cover to thereby reduce or eliminate a dead volume inside of the rotor. The second fluid includes a flush volume that passes through the rotor ducts.

The invention belongs to the technical field of seawater desalination, and particularly relates to a pressure exchanger and a water treatment system.The pressure exchanger comprises a sleeve part, a rotor and an end cover assembly, a communicating structure is formed between a first end cover and the rotor, and / or a communicating structure is formed between a second end cover and the rotor, and the communicating structures are used for communicating with the first end cover and the second end cover when the rotor rotates. The adjacent input channels and output channels on the corresponding end covers are communicated, so that the transmission of pressure in the overflowing channels of the rotor forms a gradient between corresponding ports of the input channels and the output channels of the end cover assembly; in the rotating process of the rotor, liquid carried in the overflowing channel and pressure energy of the overflowing channel can be gradually released or loaded in the rotating process, pressure sudden change is avoided, cavitation erosion caused by the pressure sudden change can be eliminated, the pressure transmission time is prolonged, and vibration and noise are reduced.

A pressure exchanger is configured to exchange pressure between a first fluid and a second fluid. A controller is configured to control, based on first sensor data from a first sensor associated with the first fluid and second sensor data from a second sensor associated with the second fluid, a first valve associated with the first fluid and a second valve associated with the second fluid to vary proportions of the first fluid and the second fluid entering the pressure exchanger to reduce mixing of the first fluid and the second fluid in the pressure exchanger.

The present invention belongs to the technical field of seawater desalination, and specifically, relates to a pressure exchanger and a water treatment system. The pressure exchanger comprises a sleeve member, a rotor and an end cover assembly. A connecting structure is formed between the first end cover and the rotor, and / or a connecting structure is formed between the second end cover and the rotor. The connecting structure is used to connect adjacent input passages and output passages on the corresponding end covers when the rotor rotates, so that the transmission of pressure in the flow channel of the rotor forms a gradient between the ports corresponding to the input channel and the output channel of the end cover assembly; during the rotation of the rotor, the liquid carried in the flow channel and the pressure energy it has will be gradually released or loaded during the rotation process, avoiding sudden pressure changes, which is conducive to eliminating cavitation caused by sudden pressure changes, increasing the time of pressure transmission, and reducing vibration and noise.

A system includes a pressure exchanger configured to exchange pressure between a first fluid and a second fluid. The system further includes one or more first valves coupled to the pressure exchanger. The one or more first valves in an open position are associated with a flushing operation.

A vapour compression refrigeration system has a main refrigerant circuit having a main gas cooler or condenser arranged in a high pressure branch, a first main evaporator arranged in a first low pressure branch, a main compressor fluidically connecting the first low pressure branch to the high pressure branch, and an expansion device connecting the high pressure branch to an intermediate pressure branch. The system has a by-pass branch connecting the high-pressure branch to the intermediate pressure branch and provided with a by-pass valve, a secondary refrigerant circuit having a secondary gas cooler or condenser arranged in a secondary high pressure branch, a secondary evaporator arranged in a secondary low pressure branch, and a secondary expansion device connecting the secondary high pressure branch to the secondary low pressure branch. A rotary pressure exchanger is fluidically connected to the by-pass branch downstream of the by-pass valve and the secondary refrigerant circuit.

The pressure exchanger includes a rotor, an end cover, and a flow adaptor. The rotor is configured to exchange pressure between fluids. The end cover is disposed at a distal end of the rotor. The end cover defines an end cover low pressure port and an end cover high pressure port. The flow adaptor defines a planar surface, a distal end, and an upper surface. The planar surface defines a planar low pressure opening and a planar high pressure opening and is configured to seal against the end cover. The distal end defines a distal low pressure opening. Low pressure fluid flow exists between the end cover low pressure port and the distal low pressure opening via the planar low pressure opening. The upper surface defines an upper high pressure opening. High pressure fluid flow exists between the end cover high pressure port and the upper high pressure opening via the planar high pressure opening.

A system includes a pressure exchanger (PX) configured to receive a first fluid at a first pressure and a second fluid at a second pressure, and exchange pressure between the first fluid and the second fluid. The system also includes a first heat exchanger and a second heat exchanger. The system also includes a compressor. The system further comprises an electric energy generating device. The system also includes a first valve. The system also includes a processing device operably coupled to the first valve. The processing device is configured to provide a control signal to the first valve to operate the system in a first mode or a second mode.

A rotary pressure exchanger includes a housing and a rotor. Channels are inside the rotor to transfer pressure from a first fluid to a second fluid. Each channel extends parallel to the axis of rotation, and the housing includes a first inlet port for supplying the first fluid to the channels, a first outlet port for discharging the first fluid from the channels, a second inlet port for suppling the second fluid to the channels, and a second outlet port for discharging the second fluid from the channels. The first and second inlet ports are radial inlet ports, such that the first fluid and the second fluid enter the rotor in a radial direction perpendicular to the axial direction, and the first outlet port and the second outlet port are radial outlet ports, such that the first fluid and the second fluid leave the rotor in the radial direction.

The application discloses a single-stage multi-section treatment system and method for seawater desalination and boron removal, relates to the technical field of seawater desalination and boron removal, and realizes the pretreatment and first desalination and boron removal of seawater raw water through a single-stage process, cooperates with a pressure exchanger to realize the efficient recovery of the energy of high-pressure concentrated water and the pressurization of low-pressure inlet water, reduces the operation load of a high-pressure pump of a first stage, and realizes the effective reduction of energy consumption; gradient reverse osmosis treatment is performed on single-stage produced water through a multi-section process, the step-by-step pressurization and pressure compensation of high-pressure pumps of all stages on concentrated water of previous sections are utilized, the residual pressure of concentrated water is fully utilized, the gradient reprocessing and deep boron removal of concentrated water are realized, and the overall recovery rate of seawater desalination is improved. In addition, a control unit dynamically determines the optimal operation section number of the multi-section process according to actual inlet water quality and produced water targets, accurately adjusts the pressure of high-pressure pumps of all stages and the start-stop state of membrane assemblies, makes system operation parameters highly adapt to actual working conditions, and avoids the problems of excessive treatment or insufficient treatment caused by fixed section number operation.

The pressure exchanger includes a rotor configured to exchange pressure between a first fluid and a second fluid, a sleeve disposed about the rotor, and a first end cover disposed at a first distal end of the rotor, and further includes one or more first sealing elements configured to prevent leakage between the sleeve and the first end cover.

The system includes a pressure exchanger and one or more valves. The pressure exchanger includes a rotor configured to exchange pressure between a first fluid and a second fluid. The pressure exchanger further includes a housing disposed about the rotor, one or more flush inlets coupled to the housing, and one or more flush outlets coupled to the housing. One or more first valves are coupled to the one or more flush outlets. The one or more first valves in an open position are associated with a flush operation. The one or more first valves in a closed position are associated with a lubrication operation.

A refrigeration system includes a pressure exchanger (PX). The PX is a rotary liquid piston compressor. The PX includes: a first PX inlet fluidly coupled to a heat exchanger outlet of a heat exchanger comprising a gas cooler or condenser; a first PX outlet fluidly coupled to a heat exchanger inlet of the heat exchanger; a second PX inlet fluidly coupled to an evaporator outlet of an evaporator; and a second PX outlet fluidly coupled to an evaporator inlet of the evaporator.

To optimize a pressure exchanger by one or more of minimizing mixing, enhancing efficiency, controlling cavitation, controlling noise, and / or controlling vibration.SOLUTION: A pressure exchanger includes a rotor configured to exchange pressure between a first fluid at a first pressure and a second fluid at a second pressure. The pressure exchanger further includes a first end cover 310, which forms a high-pressure-in port 312 configured to provide the first fluid at the first pressure into ducts and forms a low-pressure-out port 312 configured to receive the first fluid at a third pressure from the ducts. The pressure exchanger further includes a second end cover 310, which forms a low-pressure-in port 312 configured to provide the second fluid at the second pressure into the ducts and forms a high-pressure-out port 312 configured to receive the second fluid from the ducts at a fourth pressure.SELECTED DRAWING: Figure 3A

The invention relates to a control plate (18) configured to fit a hydraulic machine (e.g., an axial piston machine or a pressure exchanger) for hydraulic fluid, the control plate (18) comprising a body (21) having an arrangement of passage openings (22, 23) for the passage of the hydraulic fluid and a contact surface, the entire thickness of the body (21) is formed from a primary material, wherein the primary material is a first polymeric material. It is an object of the present invention to provide a control board (18) having a good lifetime. This object is solved by a control plate (18) wherein the main body (21) comprises at least one differential section made of a second polymeric material (31) wherein the second polymeric material (31) is different from the main material.

A refrigeration system includes a heat exchanger including a gas cooler or condenser. The heat exchanger includes a heat exchanger inlet and a heat exchanger outlet. The refrigeration system further includes an evaporator including an evaporator inlet and an evaporator outlet. The refrigeration system further includes a compressor including a compressor inlet fluidly coupled to the evaporator outlet and a compressor outlet fluidly coupled to the heat exchanger inlet. The refrigeration system further includes a pressure exchanger (PX) including a first PX inlet fluidly coupled to the heat exchanger outlet, a first PX outlet fluidly coupled to the heat exchanger inlet, a second PX inlet fluidly coupled to the evaporator outlet, and a second PX outlet fluidly coupled to the evaporator inlet.

A pressure exchanger includes a rotor configured to exchange pressure between a first fluid and a second fluid. The pressure exchanger further includes a sleeve disposed around the rotor. The pressure exchanger further includes a first end cover disposed at a first distal end of the rotor. The pressure exchanger further includes a first seal ring disposed around the pressure exchanger. The first seal ring covers a first interface between the sleeve and first end cover to prevent leakage. The pressure exchanger further includes a first pin comprising a first pin first distal end that is at least partially disposed in a first seal ring recess formed in the first seal ring and a first pin second distal end disposed in a first recess formed in the first end cover or the sleeve.

A method is provided. The method comprises: identifying, by a processing device, first temperature data indicative of a temperature difference between a bulk fluid at a first inlet of a heat exchanger and the bulk fluid at a first outlet of the heat exchanger, fluidly coupled to the first inlet by one or more fluid channels of the heat exchanger, wherein the first outlet of the heat exchanger is fluidly coupled to a high-pressure inlet of a pressure exchanger (PX); determining, based on the first temperature data, a target adjustment of a first valve fluidly coupled to the first outlet of the heat exchanger and to a secondary fluid inlet of the heat exchanger; and causing, based on the target adjustment, actuation of the first valve.

A system includes a pressure exchanger (PX) configured to receive a first fluid at a first pressure, receive a second fluid at a second pressure, and exchange pressure between the first fluid and the second fluid. The first fluid is to exit the PX at a third pressure and the second fluid is to exit the PX at a fourth pressure. The system further includes a condenser configured to receive the first fluid from a compressor and provide corresponding thermal energy from the first fluid to a first environment. The system further includes a heat exchanger configured to receive the first fluid output from the condenser.

A system includes a refrigeration system for exchanging heat between a first cooling circuit and a second cooling circuit. The refrigeration system includes a pressure exchanger (310) for receiving a first fluid at a first pressure and a second fluid at a second pressure and exchanging pressure between the first fluid and the second fluid. The refrigeration system also includes a first heat exchanger (318) for exchanging heat between the first cooling circuit and a portion of the first fluid output from the pressure exchanger. The refrigeration system also includes a second heat exchanger (329) for exchanging heat between a portion of the first fluid entering the pressure exchanger and the second cooling circuit.

The fluid processing system includes a pressure exchanger (PX) configured to receive a first fluid at a first pressure and a second fluid at a second pressure and exchange pressure between the first fluid and the second fluid. The system further includes a condenser configured to provide corresponding thermal energy from the first fluid to a corresponding environment. The system further includes a receiver configured to receive the first fluid output by the PX. The receiver includes a chamber for separating the first fluid into a first gas and a first liquid. The system further includes a heat exchanger configured to receive the second fluid from a second outlet of the PX and provide the second fluid to a second inlet of the PX.

A system includes a pressure exchanger configured to receive a first fluid via a high pressure in (HPIN) port, receive a second fluid via a low pressure in (LPIN) port, exchange pressure between the first fluid and the second fluid, and provide the first fluid via a low pressure out (LPOUT) port, and provide the second fluid via a high pressure out (HPOUT) port. The system further includes a main gas cooler coil configured to provide main gas cooler coil exit flow that is split into a first stream and a second stream. The system further includes a first heat exchanger configured to: subcool the first stream and provide the first stream to the HPIN of the pressure exchanger; and convert the second stream into a two-phase liquid-gas mixture and provide the two-phase liquid-gas mixture to the first heat exchanger to absorb heat from and subcool the first stream.

A heat driven osmosis water and power generator consists of dilute hygroscopic solution flow loop, an air humidity exchanger, a condensation solution circulation pump, a pressure retarded osmosis exchanger, a pressure exchanger, an evaporation chamber, a recuperative heat exchanger, a concentrated solution circulation pump, a solution pressure differential turbine generator, a freshwater power turbine, a concentrated hygroscopic solution flow loop and condensed water reservoir. The pump circulates low concentration, dilute, hygroscopic solution between air humidity exchanger and osmosis exchanger. Moisture is absorbed into low concentration hygroscopic solution from air circulation through humidity exchanger. As solution circulates through osmosis exchanger, moisture is extracted through osmosis membrane by concentrated hygroscopic solution. Concentrated hygroscopic solution circulation pump circulates high concentration solution between pressure retarded osmosis exchanger and vaporization chamber. Solution flowing to and from vaporization chamber is maintained at a lower pressure than fluid circulating through osmosis exchanger.

The invention discloses a desulfurization wastewater low-cost zero-discharge integrated system which comprises a raw water tank, a water outlet of the raw water tank is connected with an acidification reaction tower through a raw water pump, the acidification reaction tower is connected with a dosing mechanism, and an overflow port of the acidification reaction tower is connected with a cyclone separator. A slag outlet in the bottom of the cyclone separator is connected with a carbonate crystallization tank through a sludge discharge pump; by organically combining an acidification carbonate removal technology with RO concentration, flue evaporation and other technologies, the softening process of a traditional dual-alkali method is shortened by 50%, the sludge yield is reduced by 85%, rapid crystallization and separation of carbonate are achieved, the hardness removal rate is larger than 95%, a ceramic membrane and a DTRO membrane operate in series, high-salt and high-hardness water quality is tolerated, the service life of the RO membrane is greatly prolonged, and the service life of the RO membrane is prolonged. And the PX pressure exchanger and the flue gas waste heat are used, so that the energy consumption of the system is effectively reduced, and the problems of high cost, high scaling and high energy consumption of high-salt desulfurization wastewater treatment are solved.

An atmospheric water vapor extraction power generation device includes a dilute hygroscopic solution flow loop, air humidity exchanger, condensation solution circulation pump, pressure retarded osmosis exchanger, pressure exchanger, evaporation chamber, recuperative heat exchanger, concentrated solution circulation pump, solution pressure differential turbine generator, freshwater power turbine, concentrated hygroscopic solution flow loop and condensed water reservoir.