公开(公告)号：EP3358195A1

公开(公告)日：2018-08-08

申请号：EP16851653.2

申请日：2016-09-28

申请人： IHI Corporation

发明人： IIZUKA Kuniaki ,  YOSHIDA Takashi ,  INOMATA Tatsumi ,  OZASA Takuya ,  KIMACHI Kouta

IPC分类号： F04D29/056 ,  F04D29/42

CPC分类号： F04D29/122 ,  F04D25/06 ,  F04D29/023 ,  F04D29/051 ,  F04D29/053 ,  F04D29/056 ,  F04D29/063 ,  F04D29/42 ,  F04D29/4206

摘要： Provided is a centrifugal compressor, including: a compressor impeller 22 (impeller) which is provided to a shaft 17; a wall portion 2c having an opposed surface 2d that is spaced apart from and opposed to a back surface 22a of the compressor impeller 22; an insertion hole 2b, which is formed in the wall portion 2c, and is configured to receive the shaft 17 inserted to the insertion hole 2b; a ball bearing 20 (bearing), which is provided in the insertion hole 2b or apart from the compressor impeller 22 with respect to the insertion hole 2b, and is configured to axially support the shaft through interposition of grease being a lubricant inside; an electric motor which is provided on a side opposite to the compressor impeller 22 over the wall portion 2c; and an opposed hole 28, which is formed in the wall portion 2c, and has one end 28a opened in the opposed surface 2d and another end 28b opened at a position opposed to a stator of the electric motor on a side opposite to the compressor impeller 22.

公开(公告)号：EP3358146A1

公开(公告)日：2018-08-08

申请号：EP18154961.9

申请日：2018-02-02

申请人： Nuovo Pignone Tecnologie SrL

发明人： DOZZINI, Matteo ,  ORTIZ NERI, Massimiliano ,  BORGHETTI, Massimiliano

IPC分类号： F01D15/00 ,  F01D25/16 ,  F01D25/22 ,  F04D29/058

CPC分类号： F04D29/582 ,  F01D15/00 ,  F01D25/166 ,  F01D25/22 ,  F04D17/12 ,  F04D19/02 ,  F04D25/04 ,  F04D25/06 ,  F04D29/058 ,  F04D29/083 ,  F04D29/122 ,  F04D29/584 ,  F05D2240/51

摘要： According to one aspect of the present disclosure, a turbomachine (100) is provided. The turbomachine (100) includes: a rotor (10) extending in an axial direction (A) and comprising a driven side (12) configured to be connected to a driving unit and a second side (14) opposite the driven side; a housing (20) extending around at least a portion of the rotor (10), wherein a main flow path (30) for a process fluid extends between the rotor (10) and the housing (20); a sealing arrangement (40), particularly a dry gas seal, configured for sealing a gap between the rotor (10) and the housing (20) at the driven side (12) of the rotor; and a first magnetic bearing (50) supporting the second side (14) of the rotor. A fluid passage (31) for a portion of the process fluid extends from the main flow path (30) through a bearing gap (52) of the first magnetic bearing (50). According to a further aspect, a method of operating a turbomachine is described.

公开(公告)号：EP3112632A4

公开(公告)日：2017-04-12

申请号：EP14884001

申请日：2014-02-25

申请人： MITSUBISHI HEAVY IND LTD

发明人： FUTAE TAKAYA ,  SUZUKI HIROSHI ,  HAYASHI NORIYUKI ,  MIYAZAWA TAKUYA

IPC分类号： F02B39/00 ,  F01D11/00 ,  F16J15/16 ,  F16J15/24 ,  F16J15/3272 ,  F16J15/44

CPC分类号： F04D29/122 ,  F01D11/003 ,  F01D25/186 ,  F02B33/40 ,  F02B39/14 ,  F04D29/053 ,  F04D29/056 ,  F04D29/284 ,  F05D2220/40 ,  F05D2240/60 ,  F16J15/164 ,  F16J15/24 ,  F16J15/3272 ,  F16J15/441

摘要： An object is to provide a seal structure capable of reducing abrasion of a seal ring without increasing the number of components and of minimizing generation of abrasion powder. A seal structure to seal clearance between an outer peripheral surface 8a of a rotary shaft 8 and an inner peripheral surface 6a of a bearing housing 6 includes: a first seal groove 22A formed on the outer peripheral surface 8a of the rotary shaft 8; a second seal groove 22B disposed between the first seal groove and the impeller; a first seal ring 26 to be mounted to the first seal groove; and a second seal ring 28 to be mounted to the second seal groove. The first seal ring 26 includes a first-seal body portion 26A mounted to the first seal groove, and a first-seal protruding portion 26B protruding from the first-seal body portion toward the second seal ring 28, and being configured to be in contact with the second seal ring contacting a bearing-side wall surface 22Ba of the second seal groove, in a state in which the first-seal body portion is in contact with a bearing-side wall surface 22Aa of the first seal groove.

摘要翻译： 一个目的是提供一种密封结构，其能够减少密封环的磨损而不增加部件的数量并且使磨损粉末的产生最小化。 用于密封旋转轴8的外周面8a和轴承壳体6的内周面6a之间的间隙的密封结构包括：形成在旋转轴8的外周面8a上的第一密封槽22A; 设置在第一密封槽与叶轮之间的第二密封槽22B; 安装到第一密封槽的第一密封环26; 以及将安装到第二密封槽的第二密封环28。 第一密封环26包括安装到第一密封槽的第一密封主体部26A和从第一密封主体部朝向第二密封环28突出并且构造成接触的第一密封突出部26B 在第一密封主体部与第一密封槽的轴承侧壁面22Aa接触的状态下，第二密封环与第二密封槽的轴承侧壁面22Ba接触。

公开(公告)号：EP2481960B1

公开(公告)日：2016-09-21

申请号：EP10818594.3

申请日：2010-05-19

申请人： Eagle Industry Co., Ltd.

发明人： TAKAHASHI, Hidekazu

IPC分类号： F16J15/34 ,  F04B39/00 ,  F04B53/00 ,  F04D29/12 ,  F04D29/58

CPC分类号： F16J15/3404 ,  F04D29/122 ,  F04D29/126 ,  F16J15/3448 ,  F16J15/3464

公开(公告)号：EP2857653A4

公开(公告)日：2016-04-06

申请号：EP13797334

申请日：2013-05-27

申请人： IHI CORP

发明人： SEGAWA KENICHI

IPC分类号： F02B37/24 ,  F01D11/00 ,  F01D17/16 ,  F02C7/28 ,  F16J9/16

CPC分类号： F04D27/002 ,  F01D11/005 ,  F01D17/165 ,  F02B37/24 ,  F04D29/122 ,  F05D2220/40 ,  F05D2240/58 ,  F05D2240/581 ,  F05D2250/75

摘要： An annular seal flange (87) is formed at an inner peripheral edge portion of an upstream-side seal ring (83). The seal flange (87) projects in a downstream direction. When seal rings (83, 85) are viewed from radially inside, the seal flange (87) of the upstream-side seal ring (83) is designed to at least partially occlude an end gap (85f) of the downstream-side (the most downstream-side) seal ring (85).

摘要翻译： 环形密封凸缘（87）形成在上游侧密封环（83）的内周边缘部分。 密封凸缘（87）沿下游方向突出。 当从径向向内观察密封环（83,85）时，上游侧密封环（83）的密封凸缘（87）被设计成至少部分地封闭下游侧的端部间隙（85f） 最下游侧）密封环（85）。

公开(公告)号：EP2585678A1

公开(公告)日：2013-05-01

申请号：EP11797682.9

申请日：2011-06-20

申请人： Vetco Gray Scandinavia AS

发明人： TOMTER, Ole, Petter

IPC分类号： E21B43/01 ,  B63C11/00 ,  E21B43/12 ,  F04B53/16 ,  F04D29/10 ,  F16J15/40

CPC分类号： F04B39/02 ,  F04B53/18 ,  F04C2/18 ,  F04C11/008 ,  F04C13/008 ,  F04C15/0092 ,  F04C2270/185 ,  F04C2270/24 ,  F04D13/062 ,  F04D25/06 ,  F04D29/063 ,  F04D29/122

摘要： A compensated barrier and lubrication fluids pressure regulation system for a subsea motor and pump module is disclosed. The system comprises a hydraulic fluid supply, a barrier fluid circuit, and a lubrication fluid circuit. Hydraulic fluid in the barrier fluid circuit is pre-tensioned towards a motor by a first separating pressure compensator which is responsive to the pressure in the lubrication fluid circuit and which applies the sum of the pressure in the lubrication fluid circuit and an inherent pre-tensioning pressure to the barrier fluid circuit. Hydraulic fluid in the lubrication fluid circuit is pre-tensioned towards a pump by a second separating pressure compensator which is responsive to a pumped medium pressure at a suction side or at a discharge side of the pump and which applies the sum of the pumped medium pressure and an inherent pre-tensioning pressure to the lubrication fluid circuit.

公开(公告)号：EP2516867A1

公开(公告)日：2012-10-31

申请号：EP10795837.3

申请日：2010-12-07

申请人： Nuovo Pignone S.p.A.

发明人： LUSTED, Roderick ,  SHENG, Nuo ,  MICHELASSI, Vittorio

IPC分类号： F04D29/16 ,  F01D11/12 ,  F01D11/02 ,  F04D29/10 ,  F16J15/44

CPC分类号： F04D29/16 ,  F01D11/003 ,  F01D11/122 ,  F04D29/102 ,  F04D29/122 ,  F04D29/162 ,  F16J15/445

摘要： A sealing system (200) for a centrifugal compressor includes a stator (220) having a seal housing (230), a seal (223) disposed in the seal housing (230) and having an abradable portion (225) along an inner circumference, a rotor (210) having a plurality of rotor teeth (215) configured to rotate within the inner circumference of the seal (223) and configured to create rub grooves (227) within the abradable portion (225), and a first spring (240) disposed between the stator (220) and the seal (210) and configured to facilitate axial movement of the seal (223) relative to the seal housing (230).

公开(公告)号：EP2504582A1

公开(公告)日：2012-10-03

申请号：EP10779776.3

申请日：2010-11-15

申请人： Nuovo Pignone S.p.A.

发明人： MEUCCI, Stefano ,  SUSINI, Paolo

IPC分类号： F04D29/12 ,  F01D11/06 ,  F16J15/34

CPC分类号： F01D25/16 ,  F01D25/22 ,  F04D29/122 ,  F16J15/3404 ,  F16J15/3484 ,  F16J15/406

摘要： Systems and methods according to these exemplary embodiments provide sealing mechanisms for centrifugal compressors. A sealing mechanism includes first, second and third dry gas seals arranged in series. Each seal receives its own sealing gas and has its own venting mechanism. Sealing gas pressures remain low enough that a dedicated compressor for supplying the sealing gases is not needed. Additionally, the risk of process gas being released into the atmosphere in case of seal failure is limited.

公开(公告)号：EP2218878B1

公开(公告)日：2012-04-04

申请号：EP10152223.3

申请日：2010-02-01

申请人： ABB Turbo Systems AG

发明人： Schlienger, Joel ,  Aberle, Patrick

IPC分类号： F01D11/00 ,  F16J15/44 ,  F04D29/12

CPC分类号： F01D11/003 ,  F04D25/04 ,  F04D29/122 ,  F05D2220/40 ,  F05D2240/57 ,  F16J15/441

公开(公告)号：EP2048367A1

公开(公告)日：2009-04-15

申请号：EP07019738.9

申请日：2007-10-09

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： Fingerhut, Udo ,  Zacharias, Wolfgang

IPC分类号： F04D29/12 ,  F01D25/14 ,  F16J15/34

CPC分类号： F16J15/3404 ,  F04D29/122 ,  F04D29/584 ,  F05B2240/57

摘要： Ein Gehäuse (1) für einen Prozessgasturboverdichter weist einen Einbauraum (4) für eine gasgeschmierte Gleitringdichtung, die mit dem Prozessgas als ein Sperrgas betreibbar ist, und eine Kühleinrichtung (5-14) zum Kühlen des Einbauraums (4) auf, so dass im Betrieb des Prozessgasturboverdichters die Verlustleistung der Gleitringdichtung abgeführt werden kann und die Leckagerate niedrig ist. Der Prozessgas-Hochdruckturboverdichter weist das Gehäuse (1) auf. Die Kühleinrichtung (5-14) weist eine Steuereinheit auf, mit der das Kühlen des Einbauraums (4) der Gleitringdichtung in Abhängigkeit eines zeitlichen Temperaturgradienten und/oder eines Kondensatanfalls in dem Sperrgas steuerbar ist.

摘要翻译： 壳体（1）具有用于气体润滑的滑环密封件的圆柱形安装空间（4），其可与吸入侧处理气体即密封气体一起操作。 上部和下部管道系统（5,8），入口（6,9），出口（7,10），上部冷却室（11,12）和下部冷却室（13,14）一起形成为用于 冷却空间，使得在工艺气体涡轮压缩机的操作期间密封件的热损失消散。 壳体以不分割的方式在密封区域中实现。 控制单元控制空间的冷却。