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公开(公告)号：EP4130492A1
公开(公告)日：2023-02-08
申请号：EP21189639.4
申请日：2021-08-04
申请人： Danfoss A/S
摘要： A pressure exchanger comprises a cylinder barrel (1), two valve plates (2) and two port plates (3, 4), wherein the cylinder barrel (1) comprises at least one cylinder (7) which accommodates a piston (8). The pressure exchanger further comprises a piston braking system (16,17), wherein the piston (8) comprises a pressure relief arrangement (9).
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公开(公告)号：EP4059591A1
公开(公告)日：2022-09-21
申请号：EP21163048.8
申请日：2021-03-17
申请人： Danfoss A/S
摘要： Reverse osmosis (1) system having a first membrane unit (2) and at least a second membrane unit (3), the membrane units (2, 3) forming a chain of membrane units, the first membrane unit (2) having a first membrane (4) separating a first feed chamber (5) and a first permeate chamber (6), a first inlet (7) connected to the first feed chamber (5), a first permeate outlet (9) connected to the first permeate chamber (6), and a first concentrate outlet (8) connected to the first feed chamber (5), the second membrane unit (3) having a second membrane (10) separating a second feed chamber (11) and a second permeate chamber (12), a second inlet (13) connected to the second feed chamber (11), a second permeate outlet (15) connected to the second permeate chamber (12), and a second concentrate outlet (14) connected to the second feed chamber (11), wherein the concentrate outlet (8) of a membrane unit (2) in the chain of membrane units is connected to an inlet (13) of a following membrane unit (3) and a concentrate outlet (14) of at least one membrane unit (3) downstream the first membrane unit (2) in the chain of membrane units is connected to a hydraulic motor (18).
In such a system the energy consumption should be optimized.
To this end the hydraulic motor (18) is operatively connected to a first electric machine (21).
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