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1. 发明公开

EP3730795A1 PROCESS FLUID LUBRICATED PUMP 审中-公开
公开(公告)号：EP3730795A1
公开(公告)日：2020-10-28
申请号：EP20161391.6
申请日：2020-03-06
申请人： Sulzer Management AG
发明人： Felix, Thomas , Bourne, Matthew , Gassmann, Simon , De Raeve, Karel De
IPC分类号： F04D1/06 , F04D13/02 , F04D13/08 , F04D29/58 , F04D29/041 , F04D29/047
摘要： A process fluid lubricated pump for conveying a process fluid is proposed, having a common housing (2), a pump unit (3) arranged in the common housing, and a drive unit (4) arranged in the common housing (2), wherein the common housing (2) comprises a pump inlet (21) and a pump outlet (22) for the process fluid, wherein the pump unit (3) comprises at least one impeller (31) for conveying the process fluid from the pump inlet (21) to the pump outlet (22), and a pump shaft (5), on which each impeller (31) is mounted, wherein the drive unit (4) comprises a drive shaft (42) for driving the pump shaft (5), and an electric motor (41) for rotating the drive shaft (42) about an axial direction (A), and wherein a hydrodynamic coupling (8) is provided for hydrodynamically coupling the drive shaft (42) to the pump shaft (5) by means of a transmission fluid. The hydrodynamic coupling (8) is configured to receive the process fluid as the transmission fluid.

2. 发明公开

EP3657024A1 MULTIPHASE PUMP 有权
公开(公告)号：EP3657024A1
公开(公告)日：2020-05-27
申请号：EP19210116.0
申请日：2019-11-19
申请人： Sulzer Management AG
发明人： Bourne, Matthew , Czemerys, Nicholas
IPC分类号： F04D29/42 , F04D29/62 , F04D31/00
摘要： A multiphase pump is proposed for conveying a multiphase process fluid a low pressure side (LP) to a high pressure side (HP), comprising an outer housing and a casing (10), the casing (10) having a pump inlet (2) and a pump outlet (3) for the process fluid, the multiphase pump (1)further comprising a pump rotor (4) for rotating about an axial direction (A) arranged within the casing (1), with the pump rotor (4) being designed for conveying the process fluid from the pump inlet (2) to the pump outlet (3). The multiphase pump is characterized in that the casing comprises a plurality of stage segments (51, 52, 71, 72, 73), and the plurality of stage segments (51, 52, 71, 72, 73) comprise an individual stage-segment (71, 72, 73), a low pressure segment (51) arranged at the pump inlet (2) and a high pressure segment (52) arranged at the pump outlet (3), wherein the individual stage-segment (71, 72, 73) is arranged between the high pressure segment (52) and the low pressure segment (51), and the stage segments (51, 52, 71, 72, 73) are held together by a sealing support structure (81, 82), the casing (10) being arranged within the outer housing.

3. 发明公开

EP4063665A1 MULTIPHASE PUMP 审中-实审
公开(公告)号：EP4063665A1
公开(公告)日：2022-09-28
申请号：EP22169068.8
申请日：2019-11-19
申请人： Sulzer Management AG
发明人： Bourne, Matthew , Czemerys, Nicholas
IPC分类号： F04D29/42 , F04D29/62 , F04D31/00 , F04D29/44
摘要： A multiphase pump is proposed for conveying a multiphase process fluid a low pressure side (LP) to a high pressure side (HP), comprising an outer housing and a casing (10), the casing (10) having a pump inlet (2) and a pump outlet (3) for the process fluid, the multiphase pump (1)further comprising a pump rotor (4) for rotating about an axial direction (A) arranged within the casing (1), with the pump rotor (4) being designed for conveying the process fluid from the pump inlet (2) to the pump outlet (3). The multiphase pump is characterized in that the casing comprises a plurality of stage segments (51, 52, 71, 72, 73), and the plurality of stage segments (51, 52, 71, 72, 73) comprise an individual stage-segment (71, 72, 73), a low pressure segment (51) arranged at the pump inlet (2) and a high pressure segment (52) arranged at the pump outlet (3), wherein the individual stage-segment (71, 72, 73) is arranged between the high pressure segment (52) and the low pressure segment (51), and the stage segments (51, 52, 71, 72, 73) are held together by a sealing support structure (81, 82), the casing (10) being arranged within the outer housing.

4. 发明公开

EP3808984A1 PROCESS FLUID LUBRICATED PUMP AND SEAWATER INJECTION SYSTEM 有权
公开(公告)号：EP3808984A1
公开(公告)日：2021-04-21
申请号：EP19203397.5
申请日：2019-10-15
申请人： Sulzer Management AG
发明人： Bourne, Matthew , Felix, Thomas , De Raeve, Karel , Gassmann, Simon
IPC分类号： F04D13/08 , F04D13/12 , F04D29/041 , F04D29/06 , F04D29/58
摘要： A process fluid lubricated pump is proposed, having a common housing (2), a pump unit (3) arranged in the common housing, and a drive unit (4) arranged in the common housing (2), wherein the common housing (2) comprises a low pressure inlet (21) and a high pressure outlet (22) for the process fluid. The pump unit (3) comprises a pump shaft (5) extending from a drive end (51) to a non-drive end (52) of the pump shaft (5), and a first pump section (31) having a first set of impellers (311) fixedly mounted on the pump shaft (5). The drive unit (4) is configured for driving the rotation of the pump shaft (5). A first balance drum (7) is fixedly connected to the pump shaft (5) between the pump unit (3) and the drive end (51) and defining a first front side (71) facing the pump unit (3) and a first back side (72). A first relief passage (73) is provided between the first balance drum (7) and a first stationary part (26), the first relief passage (73) extending from the first front side (71) to the first back side (72). A second balance drum (8) is fixedly connected to the pump shaft (5) between the pump unit (3) and the non-drive end (52), the second balance drum (8) defining a second front side (81) facing the pump unit (3) and a second back side (82). A second relief passage (83) is provided between the second balance drum (8) and a second stationary part (27), the second relief passage (83) extending from the second front side (81) to the second back side (82). A balance line (9) is provided connecting the first back side (72) and the second back side (82).

5. 发明公开

EP3730796A1 CENTRIFUGAL PUMP 审中-公开
公开(公告)号：EP3730796A1
公开(公告)日：2020-10-28
申请号：EP20161393.2
申请日：2020-03-06
申请人： Sulzer Management AG
发明人： Felix, Thomas , Bourne, Matthew , Gassmann, Simon , De Raeve, Karel De
IPC分类号： F04D1/06 , F04D13/02 , F04D13/08 , F04D29/041 , F04D29/047 , F04D29/58
摘要： A centrifugal pump for conveying a process fluid is proposed, having a pump unit (3), a drive unit for driving the pump unit, a pump inlet (21) for receiving the process fluid and a pump outlet (22) for discharging the process fluid, wherein the pump unit (3) comprises at least one impeller (31) for conveying the process fluid from the pump inlet (21) to the pump outlet (22), and a pump shaft (5), on which each impeller (31) is mounted, wherein the drive unit (4) comprises a drive shaft (42) for driving the pump shaft (5), and an electric motor (41) for rotating the drive shaft (42) about an axial direction (A), wherein a plurality of bearings (43, 44, 45, 53, 54, 55) is provided for supporting the pump shaft (5) and the drive shaft (42), wherein a hydrodynamic coupling (8) having a casing (81) is provided for hydrodynamically coupling the drive shaft (42) to the pump shaft (5) by means of a transmission fluid, and wherein at least one of the plurality of bearings (43, 44, 45, 53, 54, 55) is arranged in the casing (81) of the hydrodynamic coupling (8).

6. 发明公开

EP3623633A1 PUMP FOR MULTIPHASE FLUIDS 有权
公开(公告)号：EP3623633A1
公开(公告)日：2020-03-18
申请号：EP19197704.0
申请日：2019-09-17
申请人： Sulzer Management AG
发明人： Bourne, Matthew
IPC分类号： F04D1/06 , F04D15/00 , F04D31/00
摘要： A multiphase pump is proposed for conveying a multiphase process fluid from a low pressure side (LP) to a high pressure side (HP), comprising a housing (2) having a pump inlet (3) and a pump outlet (4) for the process fluid, further comprising an inlet annulus (5) designed for receiving the process fluid from the pump inlet (4), a discharge annulus (6) designed for discharging the process fluid into the pump outlet (4), a pump rotor (7) for rotating about an axial direction (A) arranged within the housing (2), with the pump rotor (7) being designed for conveying the process fluid from the inlet annulus (5) to the outlet annulus (6), and a return line (9) for returning the process fluid from the high pressure side (HP) to the low pressure side (LP), wherein the return line (9) comprises an inlet (91) for receiving the process fluid, an outlet (92) for discharging the process fluid and a control valve (93) for opening and closing the return line (9), and wherein the inlet (91) of the return line (9) is arranged directly at the discharge annulus (6).

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