The present invention relates to a energy recovery unit in desalination plants or other applications as (oil & gas), wherein the energy of the pressure exchanger PE is prov ided by the exchange of pressure between the 1.sup.st fluid, which can be the high-pressure concentrated water from the desalination plant output, and the 2.sup.nd fluid, which can be the low-pressure feeding water to the desalination plants, wherein the 1.sup.st fluid enters into the pressure exchanger through HPI and the pressure is transferred to the 2.sup.nd fluid throught the pressure exchanger. Thus, the pressure of the 2.sup.nd flow is raised and pushed through HPO to RO desalination membrane. The course of this cycle is as follows: (HPI/E/44/X45/46/C/55/X56/57/A/HPO) and 2.sup.nd fluid is entered into pressure exchanger through LPI and 1.sup.st fluid is swiped out with low pressure (after exchanging pressure with 2.sup.nd fluid) from the pressure exchanger through LPO. The course of this cycle is as follows: (LPI/A/54/X52/Y52/Z52/51/C/47/Z48/Y48/X48/50/E/LPO). PE consists of stationary cylinder “C” and rotating disc “A,B,D&E”.

Devices, systems, and methods for detecting properties of motion of at least one component of fluid exchange devices, such as, for example, a pressure exchange device or system.

A pumping system that includes a reciprocating isobaric pressure exchanger (reciprocating IPX) designed to exchange pressures between a first fluid and a second fluid. The first fluid includes a substantially particulate free fluid and the second fluid includes a particulate laden fluid. The reciprocating IPX includes a valve having a first and second piston. The value further includes a shaft coupling the first piston to the second piston and a drive coupled to the shaft.

A pumping system that includes a reciprocating isobaric pressure exchanger (reciprocating IPX) designed to exchange pressures between a first fluid and a second fluid. The first fluid includes a substantially particulate free fluid and the second fluid includes a particulate laden fluid. The reciprocating IPX includes a valve having a first and second piston. The value further includes a shaft coupling the first piston to the second piston and a drive coupled to the shaft.

A fluid manifold segment operable for detachably coupling with another instance of the fluid manifold segment to form a fluid manifold assembly. The fluid manifold segment may include a plurality of pressure exchangers each having a clean fluid inlet a clean fluid outlet, a dirty fluid inlet, and a dirty fluid outlet. The fluid manifold segment may further include a first fluid conduit having opposing end ports and intermediate ports, a second fluid conduit having opposing end ports and intermediate ports each fluidly connected with the clean fluid outlet of a corresponding pressure exchanger, a third fluid conduit having opposing end ports and intermediate ports each fluidly connected with the dirty fluid inlet of a corresponding pressure exchanger, and a fourth fluid conduit having opposing end ports and intermediate ports each fluidly connected with the dirty fluid outlet of a corresponding pressure exchanger.

A fluid manifold segment operable for detachably coupling with another instance of the fluid manifold segment to form a fluid manifold assembly. The fluid manifold segment may include a plurality of pressure exchangers each having a clean fluid inlet a clean fluid outlet, a dirty fluid inlet, and a dirty fluid outlet. The fluid manifold segment may further include a first fluid conduit having opposing end ports and intermediate ports, a second fluid conduit having opposing end ports and intermediate ports each fluidly connected with the clean fluid outlet of a corresponding pressure exchanger, a third fluid conduit having opposing end ports and intermediate ports each fluidly connected with the dirty fluid inlet of a corresponding pressure exchanger, and a fourth fluid conduit having opposing end ports and intermediate ports each fluidly connected with the dirty fluid outlet of a corresponding pressure exchanger.

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 rotor forms ducts that are routed from a first distal end to a second distal end. The rotor forms chamfers on trailing edge rotor duct walls. The pressure exchanger further includes a first end cover that forms a high pressure in (HPIN) port configured to provide the first fluid at the first pressure into the ducts. The first end cover forms a low pressure out (LPOUT) port configured to receive the first fluid from the ducts at a third pressure. The pressure exchanger further includes a second end cover that forms a low pressure in (LPIN) port configured to provide the second fluid at the second pressure into the ducts and forms a high pressure out (HPOUT) port configured to receive the second fluid from the ducts at a fourth pressure.

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 rotor forms ducts that are routed from a first distal end to a second distal end. The rotor forms chamfers on trailing edge rotor duct walls. The pressure exchanger further includes a first end cover that forms a high pressure in (HPIN) port configured to provide the first fluid at the first pressure into the ducts. The first end cover forms a low pressure out (LPOUT) port configured to receive the first fluid from the ducts at a third pressure. The pressure exchanger further includes a second end cover that forms a low pressure in (LPIN) port configured to provide the second fluid at the second pressure into the ducts and forms a high pressure out (HPOUT) port configured to receive the second fluid from the ducts at a fourth pressure.

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 and a first end cover disposed at a first distal end of the rotor. The pressure exchanger further includes one or more first sealing components configured to prevent leakage between the sleeve and the first end cover.

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 and a first end cover disposed at a first distal end of the rotor. The pressure exchanger further includes one or more first sealing components configured to prevent leakage between the sleeve and the first end cover.