公开(公告)号：EP1794418B1

公开(公告)日：2013-12-04

申请号：EP05783917.7

申请日：2005-09-14

申请人： NUOVO PIGNONE S.p.A.

发明人： BIGI, Manuele ,  IACOPETTI, Piero ,  CIANI, Alessandro

IPC分类号： F01D25/24 ,  F01D9/04

CPC分类号： F01D25/246 ,  F01D9/04 ,  F05D2240/11

公开(公告)号：EP2753800B1

公开(公告)日：2016-11-09

申请号：EP12753754.6

申请日：2012-09-06

申请人： Nuovo Pignone S.p.A.

发明人： BERTI, Matteo ,  BRESCIANI, Stefano ,  PS, Ravindranath ,  SASSOLINI, Lorenza ,  CIANI, Alessandro

IPC分类号： F01D25/12

CPC分类号： F01D11/001 ,  F01D11/003 ,  F01D11/02 ,  F01D11/025 ,  F01D11/04 ,  F01D11/18 ,  F01D11/24 ,  F01D25/12 ,  F16J15/002 ,  F16J15/3404 ,  F16J15/447 ,  F16J15/4472

摘要： A rotary machine includes a machine rotor, a machine stator, a labyrinth seal disposed between the machine rotor and the machine stator, a dry gas seal disposed between the machine rotor and the machine stator, the dry gas seal being disposed downstream of the labyrinth seal, the labyrinth seal including a labyrinth seal rotor, and, a labyrinth seal stator, the labyrinth seal stator having a cavity containing a heat transfer medium configured to transfer heat between the labyrinth seal stator and a zone adjacent the labyrinth seal stator to cool or heat a pressurized process fluid before the process fluid bears against the dry gas seal.

公开(公告)号：EP2753800A1

公开(公告)日：2014-07-16

申请号：EP12753754.6

申请日：2012-09-06

申请人： Nuovo Pignone S.p.A.

发明人： BERTI, Matteo ,  BRESCIANI, Stefano ,  PS, Ravindranath ,  SASSOLINI, Lorenza ,  CIANI, Alessandro

IPC分类号： F01D11/00 ,  F01D11/02 ,  F01D11/04 ,  F01D11/18 ,  F01D11/24

CPC分类号： F01D11/001 ,  F01D11/003 ,  F01D11/02 ,  F01D11/025 ,  F01D11/04 ,  F01D11/18 ,  F01D11/24 ,  F01D25/12 ,  F16J15/002 ,  F16J15/3404 ,  F16J15/447 ,  F16J15/4472

摘要： A rotary machine includes a machine rotor, a machine stator, a labyrinth seal disposed between the machine rotor and the machine stator, a dry gas seal disposed between the machine rotor and the machine stator, the dry gas seal being disposed downstream of the labyrinth seal, the labyrinth seal including a labyrinth seal rotor, and, a labyrinth seal stator, the labyrinth seal stator having a cavity containing a heat transfer medium configured to transfer heat between the labyrinth seal stator and a zone adjacent the labyrinth seal stator to cool or heat a pressurized process fluid before the process fluid bears against the dry gas seal.

公开(公告)号：EP1794418A1

公开(公告)日：2007-06-13

申请号：EP05783917.7

申请日：2005-09-14

申请人： NUOVO PIGNONE S.p.A.

发明人： BIGI, Manuele ,  IACOPETTI, Piero ,  CIANI, Alessandro

IPC分类号： F01D25/24 ,  F01D9/04

CPC分类号： F01D25/246 ,  F01D9/04 ,  F05D2240/11

摘要： Protection device for a stator of a turbine comprising a series of annular sectors (12) which can be coupled by connection means, each sector (12) comprising a first side surface (13) which has at least one cavity (14) equipped with a bottom (15), each bottom (15) of the at least one cavity (14) is convex and each sector (12) comprises at least one stiffening rib (16) positioned inside the at least one cavity (14) and having a variable section in a longitudinal direction to modulate the rigidity of each sector (12).