28 results about "Pressure exchanger" patented technology

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.

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.

The present disclosure relates to a control plate (18) configured to equip a hydraulic machine (e.g. an axial piston machine or a pressure exchanger) for a hydraulic fluid, wherein the control plate (18) includes a body (21) having an arrangement of passage openings (22, 23) for the passage of the hydraulic fluid and a contact face, wherein a whole thickness of the body (21) is formed of a main material, wherein the main material is a first polymer material. The objective of the present disclosure is to provide a control plate (18) having a good lifetime. This objective is solved by a control plate (18), wherein the body (21) includes at least one distinct section which is made of a second polymer material (31), wherein the second polymer material (31) is different from the main material.

A system includes a refrigeration system to exchange heat between a first cooling loop and a second cooling loop. The refrigeration system includes a pressure exchanger (310) that is 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 refrigeration system further includes a first heat exchanger (318) to exchange heat between the first cooling loop and a portion of the first fluid output from the pressure exchanger. The refrigeration system further includes a second heat exchanger (329) to exchange heat between a portion of the first fluid that is to enter the pressure exchanger and the second cooling loop.

The utility model relates to a pressure exchanger which comprises a sleeve piece, a rotor and an end cover assembly, and an installation inner cavity is formed in the sleeve piece. The rotor is rotatably connected in the mounting inner cavity, overflowing channels are formed in the rotor, and the overflowing channels are parallel to the axis of the rotor; the end cover assembly comprises a first end cover and a second end cover, and the first end cover and the second end cover are located at the two ends of the sleeve piece correspondingly. Wherein the rotor and / or the end cover assembly are / is provided with a contact concave part, a concave surface is formed in the contact concave part, and the concave surface is in a circular arc shape; by means of the design of the contact concave parts, the capacity of keeping a relatively small gap between the rotor and the corresponding end cover assembly and / or the sleeve part can be achieved, the stability of the rotor in the rotating process is improved, contact and abrasion between components are prevented, and contact is reduced or even stopped to the maximum extent.

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 along a fluid flow path between the condenser and the inlet of the PX. The heat exchanger is configured to receive the first fluid output from the condenser and provide corresponding thermal energy from the first fluid to fluid input to the compressor.

The valve can include a self-cleaning feature that can be configured to at least partially displace material from a portion of the valve. Such a valve can be used in a pressure exchanger. The present application also provides a method of operating a valve.

The system includes a pressure exchanger (PX) configured to receive a first fluid, receive a second fluid, and exchange pressure between the first and second fluids. The system further includes a first gas cooler configured to supply working fluid to a first inlet and a second inlet of a heat exchanger. The heat exchanger is configured to exchange heat between the fluid supplied through the first inlet and the fluid supplied through the second inlet. The first outlet of the heat exchanger supplies the first fluid to the PX. The second outlet of the heat exchanger supplies the second fluid to the PX. The system further includes a receiver configured to receive the first and second fluids from the PX. The system further includes a first compressor configured to supply working fluid to the first gas cooler.

A system includes a pressure exchanger (PX) configured to receive a first fluid, receive a second fluid, and exchange pressure between the first fluid and the second fluid. The system also includes a heat exchanger configured to receive the second fluid from the pressure exchanger via the first inlet, receive the third fluid via the second inlet, and exchange heat between the second fluid and the third fluid. The system also includes a first compressor configured to receive a third fluid from the first heat exchanger.

A system includes a pressure exchanger (PX) configured to receive a first fluid via a first inlet and a second fluid via a second inlet. The PX is to exchange pressure between the first fluid and the second fluid and provide the first fluid at a first outlet and the second fluid at a second outlet. The system further includes a heat exchanger to exchange corresponding thermal energy between the first fluid and the second fluid. The system further includes a turbine configured to receive the second fluid output from the first heat exchanger and convert corresponding energy of the second fluid into rotational kinetic energy.

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.

A system includes a pressure exchanger (PX) configured to receive a first fluid via a first inlet and a second fluid via a second inlet. The PX is to exchange pressure between the first fluid and the second fluid and provide the first fluid at a first outlet and the second fluid at a second outlet. The system further includes a heat exchanger to exchange corresponding thermal energy between the first fluid and the second fluid. The system further includes a turbine configured to receive the second fluid output from the first heat exchanger and convert corresponding energy of the second fluid into rotational kinetic energy.

The present invention relates to thrust pad (1) for a port plate (200) configured to be used with a pressure exchanger, e.g. for a sea water reverse osmosis plant. The pressure exchanger includes a rotatable drum (1001), the port plate (200) with at least a first port orifice (201), and a port flange with at least a first fluid passage. The thrust pad (1) is provided to improve a sealing concept of pressure exchangers. It includes a plate-side surface (9), a flange-side surface (11), and a lateral surface (12). A curved shape of the thrust pad (1) is configured to be arranged at least partially between the port plate (200) and the port flange. The thrust pad (1) extends in a thickness direction (Z) less than in a first direction (X) and a second direction (Y), wherein directions (X, Y, Z) are perpendicular. The thrust pad (1) includes a through hole (2) that is configured to fluidically connect the first port orifice (201) of the port plate (200) to the first fluid passage of the port flange. The present invention also relates to a port plate arrangement (250), an assembly of a port plate arrangement (250) and a port flange and to a pressure exchanger.

This utility model relates to a carbon dioxide refrigeration device, and more particularly to a novel transcritical carbon dioxide energy efficiency enhancement device and refrigeration system. The novel transcritical carbon dioxide energy efficiency enhancement device includes: a solenoid valve located at the outlet of a gas cooler; a first three-way valve located between the inlet of the gas cooler and a liquid receiver; a second three-way valve located between the liquid receiver and a low-temperature evaporator; and a pressure exchanger, wherein the high-pressure output port A of the pressure exchanger is connected to the first three-way valve, the high-pressure input port B is connected to the solenoid valve, the low-pressure input port C is connected to the second three-way valve, and the low-pressure output port D is connected to the liquid receiver inlet. This energy efficiency enhancement device, without increasing additional energy consumption, recovers a portion of the pressure work of the transcritical carbon dioxide refrigeration system to pre-compress the evaporator return vapor, thereby reducing the compressor's energy consumption and thus improving the refrigeration system's energy efficiency.

The invention relates to a pressure exchanger with a valve system comprising a cylinder (1), two valve plates (2) and two port plates (3, 4), wherein the cylinder (1) comprises at least one cylinder (7) accommodating a piston (8). The object of the invention is to provide a pressure exchanger with low wear and low maintenance work. This object is achieved by a pressure exchanger comprising a piston (8) brake system and the piston (8) comprises a pressure relief device.

This invention pertains to pressure exchange devices and discloses a magnetically driven, levitation self-correcting rotor-type pressure exchange device. A top shell and a bottom shell are respectively installed at the top and bottom of the internal housing. The top shell has a high-pressure brine inlet and a low-pressure brine outlet, while the bottom shell has a low-pressure seawater inlet and a high-pressure seawater outlet. A rotor assembly is placed inside the internal housing. The rotor assembly includes a rotor body, a rotor channel, and a permanent magnet encapsulation channel, with a permanent magnet embedded in the encapsulation channel. A first levitation correction group, a drive group, and a second levitation correction group are arranged on the outer rotating surface of the internal housing and protected by the outer shell. The drive group is located at the axial center of the internal housing and interacts with the permanent magnet to drive the rotor assembly to rotate. The first and second levitation correction groups have identical structures and are symmetrically arranged, located above and below the drive group respectively, and interact with the permanent magnet to maintain the rotor assembly in a levitation equilibrium state.

A method includes removing a worn portion from a component of a pressure exchanger configured to exchange pressure between first and second fluids. The pressure exchanger includes a rotor, end plate, and manifold. The end plate is disposed within the manifold and adapted for fluid sealing contact with the rotor. The component includes the end plate including a removable end portion that is detachably connected to the end plate. The removable end portion has the worn portion that includes an end plate surface that is of an interface region between the rotor and the end plate. The method further includes coupling a replacement portion to the component. The replacement portion has same dimensions and same structure as the removable end portion before the removable end portion is worn. The end plate and the replacement portion have a Vickers hardness number of at least 1000, 1200, 1500, 1750, or 2000.

The present invention relates to a thrust pad for a port plate configured for use with a pressure exchanger, such as for a seawater reverse osmosis facility. The pressure exchanger includes a rotatable drum, a port plate having at least a first port orifice, and a port flange having at least a first fluid passage. Thrust pads are provided to improve the sealing concept of a pressure exchanger. The thrust pad includes a plate side surface, a flange side surface, and a lateral surface. The curved shape of the thrust pad is configured to be at least partially disposed between the port plate and the port flange. The thrust pad extends in the thickness direction (Z) less than in the first direction (X) and the second direction (Y), wherein the directions (X, Y, Z) are perpendicular. The thrust pad includes a through hole configured to fluidly connect the first port orifice of the port plate to the first fluid passage of the port flange. The invention also relates to a port plate arrangement, an assembly of a port plate arrangement and a port flange, and a pressure exchanger.

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 further includes a first heat exchanger and a second heat exchanger. The system further includes a compressor. The system further includes an electrical energy generation device. The system further includes a first valve. The system further includes a processing device operatively coupled to the first valve. The processing device is configured to provide a control signal to the first valve to cause the system to be operated in a first mode or a second mode.

A system includes a pressure exchanger configured to receive a first fluid via a high-pressure input (HPIN) port, receive a second fluid via a low-pressure input (LPIN) port, exchange pressure between the first and second fluids, and supply the first fluid via a low-pressure output (LPOUT) port and the second fluid via a high-pressure output (HPOUT) port. The system also includes a main gas cooler coil configured to provide a main gas cooler coil outlet flow split into a first flow and a second flow. The system further includes a first heat exchanger configured to: subcool the first flow and supply the first flow to the high-pressure input of the pressure exchanger; and convert the second flow into a two-phase liquid-gas mixture and supply the two-phase liquid-gas mixture to the first heat exchanger to absorb heat from the first flow and subcool it.

The present invention provides a semi-batch method and a hyperfiltration system for treating a raw water. The hyperfiltration system is suitable to switch between two modes: a recirculation mode wherein the concentrate stream from hyperfiltration elements is recycled and a flush mode that sends the concentrate stream to discharge. The hyperfiltration system includes an energy recovery device suitable to recover energy from the concentrate stream during the flush mode. Liquid flows through the energy recovery device during at least a portion of said recirculation mode. Preferably the energy recovery device is an isobaric energy recovery device or a pressure exchanger.