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公开(公告)号：US20220220980A1
公开(公告)日：2022-07-14
申请号：US17565728
申请日：2021-12-30
申请人： Sulzer Management AG
IPC分类号： F04D29/66 , F04D29/18 , F04D29/043 , F04D29/40
摘要： A rotary pump includes a balance drum connected to a pump shaft between a hydraulic unit and the pump shaft, an axial relief passage between a balance drum and a stationary part stationary relative to a pump housing, and a balancing device arranged between the balance drum and the hydraulic unit, the balancing device including a ring-shaped rotary part connected to the pump shaft, and a ring-shaped non-rotary part movable only in the axial direction, the rotary part having an axial face facing the hydraulic unit, the rotary part and the non-rotary part overlap in a radial direction, which is perpendicular to the axial direction, and the non-rotary part movable in the axial direction such that a radial relief passage is open during operation of the pump, with the radial relief passage extending in the radial direction between the rotary part and the non-rotary part.
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公开(公告)号：US20220178381A1
公开(公告)日：2022-06-09
申请号：US17454072
申请日：2021-11-09
申请人： Sulzer Management AG
发明人： Karel DE RAEVE , Thomas WELSCHINGER
IPC分类号： F04D29/06 , F04D29/041 , F04D29/047 , F04D13/08 , F04D1/08 , F16C17/02 , F16C17/08 , F16C17/14
摘要： A process fluid lubricated pump includes a housing with an inlet to receive the fluid, and an outlet to discharge the fluid, a shaft extending from a drive end to a non-drive end and rotatable about an axial direction, the drive end of the shaft arranged outside the housing, a hydraulic unit including impellers mounted on the shaft, a collection chamber to collect leaking process fluid, the collection chamber comprising an exit, through which the shaft passes, and an exit to discharge the process fluid, and a throttle device arranged between the hydraulic unit and the collection chamber, the throttle device comprising a stationary throttle part having first and second axial faces delimiting the stationary throttle part, the first axial face facing the collection chamber, and the throttle device including a throttle gap surrounding the shaft and extending from the first axial face to the second axial face.
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公开(公告)号：US20210324868A1
公开(公告)日：2021-10-21
申请号：US17209350
申请日：2021-03-23
申请人： Sulzer Management AG
IPC分类号： F04D29/06 , F04D1/08 , F04D29/041 , F04D13/08 , F04D29/047 , F04D29/58 , E21B43/12
摘要： A process fluid lubricated pump includes a pump having a pump shaft extending from a drive end to a non-drive end, first and last stage impellers, a drive unit exerting torque on the drive end to rotate the pump shaft, a balance drum connected to the pump shaft between the pump and the drive end, the balance drum defining a drum front side facing the pump and a drum back side, a relief passage between the balance drum and a first stationary part configured to be stationary with respect to a housing, the relief passage extending from the drum front side to the drum back side, the pump shaft radially supported in a non-contacting manner during operation of the pump, and a hydrodynamic radial pump bearing supporting the pump shaft, the radial pump bearing arranged at the non-drive end or at the drive end of the pump shaft.
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公开(公告)号：US20230193932A1
公开(公告)日：2023-06-22
申请号：US18084204
申请日：2022-12-19
申请人： Sulzer Management AG
发明人： Karel DE RAEVE , Thomas WELSCHINGER , Bartosz KUS
CPC分类号： F15B13/06 , F15B1/04 , H02K7/09 , H02K7/1823 , H02K49/108
摘要： An energy storage system includes a vessel for storing water, an energy conversion device, and a connection line connecting the vessel with the energy conversion device. The energy conversion device includes first and second housings, a pump turbine in the first housing, and a motor generator in the second housing. The pump turbine includes a first shaft and an impeller mounted on the first shaft. The motor generator includes a second shaft and a rotor at the second shaft for rotating relative to a stator. The second shaft is coupled to the first shaft for transmitting torque between the first and second shafts. The connecting line connects a low pressure opening with an opening for receiving water or discharging water. The second housing is filled with a gas for a barrier pressure during operation of the energy conversion device, such that the rotor rotates within the gas.
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5.发明申请公开(公告)号：US20170122331A1
公开(公告)日：2017-05-04
申请号：US15300433
申请日：2015-04-14
申请人： Sulzer Management AG
发明人： Thomas WELSCHINGER , Marco CARVALHO
IPC分类号： F04D29/08
摘要： A sealing arrangement for sealing a pressure chamber in a high pressure pump which is bound by a first and a second bounding element, includes a separate sealing element which has a first sealing surface for co-operating with the first bounding element, as well as having a second sealing surface for cooperating with the second bounding element. The two sealing surfaces are inclined with respect to one another and each have a groove for receiving a sealing ring. The sealing element is arranged in such a way that it can be displaced totally along one of the bounding elements on the application of pressure.
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公开(公告)号：US20160160873A1
公开(公告)日：2016-06-09
申请号：US14946982
申请日：2015-11-20
申请人： Sulzer Management AG
IPC分类号： F04D29/12 , F04D17/08 , F04D29/043 , F04D29/62 , F04D29/22 , F04D29/28 , F04D29/42 , F04D1/06 , F04D29/053
CPC分类号： F04D29/126 , F04D1/06 , F04D17/08 , F04D29/043 , F04D29/053 , F04D29/086 , F04D29/122 , F04D29/22 , F04D29/28 , F04D29/4206 , F04D29/426 , F04D29/624 , F04D29/628
摘要： An axially split pump for a fluid includes an axially split housing with a bottom and a cover, a rotatable shaft, and a side cover. The side cover has a first surface for cooperating with a second surface. The second surface extends over the bottom and the cover. The bottom has a first sealing surface and the cover has a second sealing surface. The bottom and the cover can be fastened so that the sealing surfaces are in direct contact. One sealing groove is in one of the sealing surfaces for the reception of a string-like sealing element, the sealing groove extending up to the second surface. A recess surrounding the shaft is in the second surface and a projection surrounding the shaft is in the first surface. The recess and the projection are arranged so that they form a ring-like groove for the reception of a ring-like sealing element.
摘要翻译： 用于流体的轴向分离的泵包括具有底部和盖子的轴向剖开的壳体，可旋转的轴和侧盖。 侧盖具有与第二表面配合的第一表面。 第二表面在底部和盖上延伸。 底部具有第一密封表面，并且盖具有第二密封表面。 底部和盖子可以被紧固，使得密封表面直接接触。 一个密封槽位于一个密封表面中，用于接收一串状的密封元件，密封槽延伸到第二表面。 围绕轴的凹部位于第二表面中，并且围绕轴的突起位于第一表面中。 凹部和突起被布置成使得它们形成用于接收环状密封元件的环状槽。
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公开(公告)号：US20210355965A1
公开(公告)日：2021-11-18
申请号：US17241485
申请日：2021-04-27
申请人： Sulzer Management AG
发明人： Karel DE RAEVE , Bartosz KUS , Thomas WELSCHINGER
摘要： A multiphase pump for conveying a multiphase process fluid includes a pump housing, a stationary diffuser, a rotor and swirl brake. The rotor is arranged in the pump housing and is rotatable about an axial direction, the rotor including a pump shaft and an impeller fixedly mounted on the pump shaft. The stationary diffuser is arranged adjacent to and downstream of the impeller. The impeller includes a blade with the blade having a radially outer tip, and a ring surrounding the impeller and arranged at the radially outer tip of the blade. A passage is between the ring and a stationary part configured to be stationary with respect to the pump housing, the passage extending in the axial direction from an entrance to a discharge. The swirl brake is disposed at the passage, and configured and arranged to brake swirling of the process fluid passing through the passage.
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公开(公告)号：US20210324862A1
公开(公告)日：2021-10-21
申请号：US17202607
申请日：2021-03-16
申请人： Sulzer Management AG
IPC分类号： F04D15/00 , F04D1/06 , F04D29/22 , F04D29/10 , F04D29/043
摘要： A centrifugal pump for conveying a fluid includes a pump housing, an impeller to convey the fluid from an inlet to an outlet, a shaft to rotate the impeller, a first sealing device to seal the shaft at a suction side, a second sealing device to seal the shaft at a discharge side, a balance drum connected to the shaft between the impeller and the second sealing device, the balance drum defining a front side facing the at least one impeller and a back side facing the second sealing device, a relief passage between the balance drum and a stationary part, a balance line connecting the back side with the suction side, a discharge opening arranged at the relief passage between the front side and the back side, and a connecting line connecting the discharge opening with the first sealing device.
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公开(公告)号：US20210088056A1
公开(公告)日：2021-03-25
申请号：US17016661
申请日：2020-09-10
申请人： Sulzer Management AG
发明人： Christopher David RADCLIFFE , Torsten JOHNE , Heike TISCHLER , Flavio GIARDINO , Thomas WELSCHINGER
IPC分类号： F04D29/54 , F04D3/00 , F04D29/18 , F04D29/043
摘要： A pump for conveying a fluid includes a stationary housing, an impeller conveying the fluid from a low pressure region to a high pressure region, a shaft to rotate the impeller about an axial direction, and a separation device to restrict a flow of the fluid from the high pressure region to the low pressure region. The separation device includes a rotary part connected to the shaft, and a stationary part stationary with respect to the housing. The rotary and stationary parts face each other and delimit a gap between the stationary part and the rotary part. The gap is arranged between the high and low pressure regions. A recess is disposed in the stationary part or the rotary part, the recess including a bottom, and a non-metallic insert is disposed in the recess. A relief channel enables fluid communication between the bottom and the low pressure region.
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公开(公告)号：US20190010952A1
公开(公告)日：2019-01-10
申请号：US16000203
申请日：2018-06-05
申请人： Sulzer Management AG
发明人： Thomas WELSCHINGER , Nitin UGALE , Torsten JOHNE
摘要： A pump casing for a centrifugal pump has a first housing part, a second housing part sealingly attached to the first housing part, a plurality of securing elements for linking the first and the second housing part, and a radial sealing element for sealing between the first and the second housing parts, the first housing part has a first axial end surface, and the second housing part has a second axial end surface, the first and second axial end surfaces facing each other, and the first axial end surface includes an annular protrusion extending in the axial direction and the second axial end surface includes an annular recess configured for engaging with the annular protrusion, the annular protrusion arranged radially inwardly with respect to the securing elements.
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