公开(公告)号：EP3812596A1

公开(公告)日：2021-04-28

申请号：EP20196133.1

申请日：2020-09-15

申请人： Sulzer Management AG

发明人： De Raeve, Karel ,  Carvalho, Marco ,  Welschinger, Thomas

IPC分类号： F04D29/047 ,  F04D29/66 ,  F04D31/00 ,  F16C27/02 ,  F04D13/08

摘要： A multiphase pump for conveying a multiphase process fluid is proposed, comprising a pump housing (2) with a pump inlet (21) and a pump outlet (22), a rotor (3) arranged in the pump housing (2) and configured for rotating about an axial direction (A), and at least one radial bearing (53, 54) having a support carrier (58) and a support structure (57) for supporting the rotor (3) with respect to a radial direction perpendicular to the axial direction (A), wherein the rotor (3) comprises a pump shaft (5) and at least one impeller (31) fixedly mounted on the pump shaft (5) for conveying the process fluid from the pump inlet (21) to the pump outlet (22), wherein a squeeze film damper (10) is provided for reducing vibrations of the rotor (3), wherein the squeeze film damper (10) is arranged around the support structure (57) of the radial bearing (53, 54), wherein the squeeze film damper (10) has an radially outer surface (101), wherein a damping gap (12) is arranged at a location between the support structure (57) of the radial bearing (53, 54) and the radially outer surface (101) of the squeeze film damper, and wherein the damping gap (12) is configured for receiving a damping fluid.

公开(公告)号：EP3726077A1

公开(公告)日：2020-10-21

申请号：EP20163059.7

申请日：2020-03-13

申请人： Sulzer Management AG

发明人： De Raeve, Karel

IPC分类号： F16C17/03 ,  F04D13/06 ,  F04D1/06 ,  F04D29/047

摘要： A vertical pump for conveying a process fluid is proposed, comprising a pump housing (2) with a pump inlet (21) and a pump outlet (22), a rotor (3) arranged in the pump housing (2) and configured for rotating about an axial direction (A), and at least one radial bearing (53, 54) for supporting the rotor (3) with respect to a radial direction perpendicular to the axial direction (A), wherein the rotor (3) comprises a pump shaft (5) extending in the direction of gravity, and at least one impeller (31, 32, 33) fixedly mounted on the pump shaft (5) for conveying the process fluid from the pump inlet (21) to the pump outlet (22), and wherein the radial bearing (53, 54) is configured as a tilting pad journal bearing comprising a support ring (56) and a plurality of pads (57) for supporting the pump shaft (5) by means of a lubricant, wherein each pad (57) comprises a front side (571) facing the pump shaft (5), a back side (572) facing the support ring (56), and a channel (573) for a fluid communication between the front side (571) and the back side (572), wherein, during operation, each pad (57) is supported by the hydrostatic pressure of the lubricant squeezed between the back side (572) of the pad (57) and the support ring (56). Furthermore, a method for retrofitting a vertical pump is proposed.

公开(公告)号：EP4279748A1

公开(公告)日：2023-11-22

申请号：EP23173989.7

申请日：2023-05-17

申请人： Sulzer Management AG

发明人： Kus, Bartosz ,  De Raeve, Karel

IPC分类号： F04F13/00

摘要： A rotary pressure exchanger is proposed for transferring pressure from a first fluid to a second fluid, comprising a housing (2) and a rotor (3) mounted within the housing (2) for rotation about an axis of rotation (D) defining an axial direction (A), wherein a plurality of channels (4) is provided inside the rotor (3) for transferring pressure from the first fluid to the second fluid, wherein each channel (4) extends parallel to the axis of rotation (D), wherein the housing (2) comprises a first inlet port (21) for supplying the first fluid to the channels (4) in the rotor (3), a first outlet port (22) for discharging the first fluid from the channels (4) in the rotor (3), a second inlet port (25) for suppling the second fluid to the channels (4) in the rotor (3), and a second outlet port (26) for discharging the second fluid from the channels (4) in the rotor (3). The first inlet port (21) and the second inlet port (25) are configured as radial inlet ports, such that the first fluid and the second fluid enter the rotor (3) in a radial direction perpendicular to the axial direction (A), and the first outlet port (22) and the second outlet port (26) are configured as radial outlet ports, such that the first fluid and the second fluid leave the rotor (3) in the radial direction.

公开(公告)号：EP4012186A1

公开(公告)日：2022-06-15

申请号：EP21206604.7

申请日：2021-11-05

申请人： Sulzer Management AG

发明人： De Raeve, Karel ,  Welschinger, Thomas

IPC分类号： F04D1/06 ,  F04D13/08 ,  F04D29/041 ,  F04D29/047 ,  F04D29/10

摘要： A process fluid lubricated pump for conveying a process fluid is proposed, comprising a pump housing (2) with an inlet (21) for receiving the process fluid having a suction pressure, and an outlet (22) for discharging the process fluid having a discharge pressure, a pump shaft (5) extending from a drive end (51) to a non-drive end (52) of the pump shaft (5) and configured for rotating about an axial direction (A), wherein the drive end (51) of the pump shaft (5) is arranged outside the pump housing (2), the pump further comprising a hydraulic unit (3) with a plurality of impellers (31, 32, 33) fixedly mounted on the pump shaft (5), a collection chamber (23) for collecting leaking process fluid, wherein the collection chamber (23) comprises a shaft exit (24), through which the pump shaft (5) passes from the inside to the outside of the pump housing (2), and a fluid exit (25) for discharging the process fluid from the collection chamber (23), wherein the pump is designed as a seal-less pump without a mechanical seal, wherein a throttle device (6) is arranged with respect to the axial direction (A) between the hydraulic unit (3) and the collection chamber (23), wherein the throttle device (6) comprises a stationary throttle part(61) having a first axial face (611) and a second axial face (612) delimiting the stationary part (61) with respect to the axial direction (A), wherein the first axial face (611) faces the collection chamber (23), and wherein the throttle device (6) comprises a throttle gap (62) surrounding the pump shaft (5) and extending from the first axial face (611) to the second axial face (612) for allowing a leakage of the process fluid along the pump shaft (5) into the collection chamber (23). Furthermore, a pump system comprising such a pump (1) is proposed,

公开(公告)号：EP3913227A1

公开(公告)日：2021-11-24

申请号：EP21169316.3

申请日：2021-04-20

申请人： Sulzer Management AG

发明人： De Raeve, Karel ,  Kus, Bartosz ,  Welschinger, Thomas

IPC分类号： F04D1/06 ,  F04D13/08 ,  F04D29/66 ,  F04D31/00

摘要： A multiphase pump for conveying a multiphase process fluid is proposed, comprising a pump housing (2), a rotor (3) arranged in the pump housing (2) and configured for rotating about an axial direction (A), wherein the rotor (3) comprises a pump shaft (5) and at least one impeller (31) fixedly mounted on the pump shaft (5), wherein a stationary diffuser (32) is arranged adjacent to and downstream of the impeller (31), wherein the impeller comprises at least one blade (38) with each blade (38) having a radially outer tip (381), and wherein the impeller (31) comprises a ring (30) surrounding the impeller (31) and arranged at the radially outer tip (381) of the blade (38), wherein a passage (10) is provided between the ring (30) and a stationary part (39) configured to be stationary with respect to the pump housing (2), said passage (10) extending in the axial direction (A) from an entrance (11) to a discharge (12), wherein at least one swirl brake (6; 61, 62) is provided at the passage (10), and wherein the swirl brake (6; 61, 62) is configured and arranged to brake a swirl of the process fluid passing through the passage (10).

公开(公告)号：EP3812595A1

公开(公告)日：2021-04-28

申请号：EP19205456.7

申请日：2019-10-25

申请人： Sulzer Management AG

发明人： De Raeve, Karel ,  Carvalho, Marco ,  Welschinger, Thomas

IPC分类号： F04D29/047 ,  F04D29/66 ,  F04D31/00 ,  F16C27/02

摘要： A multiphase pump for conveying a multiphase process fluid is proposed, comprising a pump housing (2) with a pump inlet (21) and a pump outlet (22), a rotor (3) arranged in the pump housing (2) and configured for rotating about an axial direction (A), and at least one radial bearing (53, 54) having a support carrier (58) and a support structure (57) for supporting the rotor (3) with respect to a radial direction perpendicular to the axial direction (A), wherein the rotor (3) comprises a pump shaft (5) and at least one impeller (31) fixedly mounted on the pump shaft (5) for conveying the process fluid from the pump inlet (21) to the pump outlet (22), wherein a squeeze film damper (10) is provided for reducing vibrations of the rotor (3), wherein the squeeze film damper (10) is arranged around the support structure (57) of the radial bearing (53, 54), wherein the squeeze film damper (10) has an radially outer surface (101), wherein a damping gap (12) is arranged at a location between the support structure (57) of the radial bearing (53, 54) and the radially outer surface (101) of the squeeze film damper, and wherein the damping gap (12) is configured for receiving a damping fluid.

公开(公告)号：EP4198297A1

公开(公告)日：2023-06-21

申请号：EP22212929.8

申请日：2022-12-12

申请人： Sulzer Management AG

发明人： De Raeve, Karel ,  Welschinger, Thomas ,  Kus, Bartosz

IPC分类号： F03B13/06

摘要： An energy storage system configured for installation at an underwater location (200) is proposed, comprising a vessel (2) for storing water (W), an energy conversion device (3) for selectively converting between potential energy and electric energy, and a connection line (4) connecting the vessel (2) with the energy conversion device (3),
wherein the energy conversion device (3) comprises a first housing (51), a second housing (61), a pump turbine unit (5) arranged in the first housing (51), and a motor generator unit (6) arranged in the second housing (61),
wherein the first housing (51) comprises a low pressure opening (52) and a high pressure opening (53) for the water
wherein the pump turbine unit (5) comprises a first shaft (54) for rotating about an axial direction (A), and at least one impeller (55, 55a, 55b) mounted on the first shaft (54) for interacting with the water,
wherein the motor generator unit (6) comprises a second shaft (62) for rotating about the axial direction (A), and a rotor (63) provided at the second shaft (62) for rotating relative to a stator (64),
wherein the second shaft (62) is coupled to the first shaft (54) for transmitting a torque between the first shaft (54) and the second shaft (62), and
wherein the connecting line (4) is configured to connect the low pressure opening (52) with an opening (21) provided at the vessel (2) for receiving water from the vessel (2) or discharging water into the vessel (2).
The second housing (61) is filled with a gas for providing a barrier pressure during operation of the energy conversion device (3), such that the rotor (63) rotates within the gas.

公开(公告)号：EP4027020A1

公开(公告)日：2022-07-13

申请号：EP22167420.3

申请日：2022-04-08

申请人： Sulzer Management AG

发明人： De Raeve, Karel

IPC分类号： F04D31/00 ,  F04D17/12 ,  F04D25/06 ,  F04D27/02 ,  F04D1/06 ,  F04D15/00

摘要： A multistage pump system for conveying a fluid is proposed, comprising a multistage pump (1) and a control unit (20),
wherein the multistage pump comprises a pump unit (3) arranged in a pump housing (30), and a drive unit (4) arranged in a drive housing (40),
wherein the control unit (20) is configured for controlling the drive unit (4),
wherein the pump housing (30) comprises a pump inlet (21) for receiving the fluid with a suction pressure, and a pump outlet (22) for discharging the fluid with a discharge pressure,
wherein the pump unit (3) comprises a pump shaft (5) for rotating about an axial direction (A), and a plurality of impellers (31, 32, 33) for conveying the fluid from the pump inlet (21) to the pump outlet (32), with each impeller (31, 32, 33) being mounted to the pump shaft (5) in a torque proof manner,
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 the axial direction (A), and
wherein the control unit (20) is configured to drive the electric motor (41) at different rotational speeds.
The control unit (20) is configured to operate the electric motor (41) in a first mode (M1), in which the control unit (20) operates the electric motor (41) at a constant rotational speed, and in a second mode (M2), in which the control unit (20) operates the electric motor (41) at a constant engine load, wherein the control unit (20) is further configured to switch from the first mode (M1) to the second mode (M2), when a control parameter (CP) that is indicative of a rate of change of the engine load exceeds a presettable threshold value (D). Furthermore a pumping arrangement is proposed.

公开(公告)号：EP3901465A1

公开(公告)日：2021-10-27

申请号：EP21163248.4

申请日：2021-03-17

申请人： Sulzer Management AG

发明人： De Raeve, Karel ,  Gassmann, Simon ,  Welschinger, Thomas ,  Trottmann, Benedikt

IPC分类号： F04D1/06 ,  F04D13/08 ,  F04D29/041 ,  F04D29/047 ,  F16C17/02 ,  F16C17/08 ,  F16C17/14 ,  F16C32/06

摘要： A process fluid lubricated pump is proposed, for conveying a process fluid, 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 an inlet (21) and an outlet (22) for the process fluid, wherein 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 configured for rotating about an axial direction (A), the pump unit (3) further comprising at least a first stage impeller (31) fixedly mounted on the pump shaft (5), and a last stage impeller (33) fixedly mounted on the pump shaft (5), and optionally at least one intermediate stage impeller (32) fixedly mounted on the pump shaft (5) between the first stage impeller (31) and the last stage impeller (33) wherein the drive unit (4) is configured to exert a torque on the drive end (51) of the pump shaft (5) for driving the rotation of the pump shaft (5), wherein a balance drum (7) is fixedly connected to the pump shaft (5) between the pump unit (3) and the drive end (51) of the pump shaft (5), the balance drum (7) defining a drum front side (71) facing the pump unit (3) and a drum back side (72), wherein a relief passage (73) is provided between the balance drum (7) and a first stationary part (26) configured to be stationary with respect to the common housing (2), the relief passage (73) extending from the drum front side (71) to the drum back side (72), wherein the pump shaft (5) is radially supported in a non-contacting manner during operation of the pump, wherein the pump unit (3) comprises at most one hydrodynamic radial pump bearing (54) for supporting the pump shaft (5), wherein the at most one radial pump bearing (54) is arranged at the non-drive end (52) or at the drive end (51) of the pump shaft (5).

公开(公告)号：EP4332385A1

公开(公告)日：2024-03-06

申请号：EP23193294.8

申请日：2023-08-24

申请人： Sulzer Management AG

发明人： De Raeve, Karel ,  Kus, Bartosz

IPC分类号： F04F13/00

摘要： A rotary pressure exchanger is proposed for transferring pressure from a first fluid to a second fluid, comprising a housing (2) and a rotor (3) mounted within the housing (2) for rotation about an axis of rotation (D) defining an axial direction (A), wherein the rotor (3) extends from a first rotor end (31) in the axial direction (A) to a second rotor end (32), wherein a plurality of channels (4, 40) is provided inside the rotor (3) for transferring pressure from the first fluid to the second fluid, and wherein each channel (4, 40) extends parallel to the axis of rotation (D). The plurality of channels (4, 40) comprises a set of first channels (4) and a set of second channels (40), and the rotor (3) comprises a divider (50) arranged between the first rotor end (31) and the second rotor end (32) for separating the first channels (4) from the second channels (40), wherein each first channel (4) extends from the first rotor end (31) in the axial direction (A) to the divider (50), and wherein each second channel (40) extends from the second rotor end (32) in the axial direction (A) to the divider (50).