公开(公告)号：US09074488B2

公开(公告)日：2015-07-07

申请号：US14154487

申请日：2014-01-14

Applicant: ALSTOM Technology Ltd

Inventor： Paul Marlow ,  Selma Zahirovic ,  Robert Marmilic ,  Marc Widmer ,  Joerg Krückels

IPC: F01D11/00 ,  F01D11/04 ,  F01D11/02 ,  F16J15/40 ,  F16J15/44 ,  F01D25/12

CPC classification number: F01D11/04 ,  F01D11/005 ,  F01D11/02 ,  F01D25/12 ,  F05D2240/121 ,  F05D2240/127 ,  F16J15/40 ,  F16J15/44 ,  F16J15/443

Abstract: The invention refers to an arrangement for sealing an open cavity against hot gas entrainment. The open cavity is arranged between two axially adjacent stationary components limiting radially a hot gas path of a rotary flow machine, of which at least the downstream component carries at least one airfoil extending radially into said hot gas path. A multitude of air jets is directed into the open cavity such that hot gas flowing over the open cavity is prevented from penetrating into the open cavity completely. The invention has an arrangement of supply conduits for air jets which are directed into the open cavity with a jet momentum such that hot gas is induced not to enter the open cavity and forming at least one hot gas vortex close to the hot gas path within the open cavity and preventing hot gas from penetrating into the open cavity beyond the extension of the hot gas vortex.

Abstract translation: 本发明涉及一种用于密封开放空腔以抵抗热气体夹带的装置。 敞开的空腔布置在两个轴向相邻的固定部件之间径向限制旋转流动机器的热气体通道，其中至少下游部件承载至少一个径向延伸到所述热气体通道中的翼型件。 多个空气射流被引导到开放空腔中，使得流过开放空腔的热气体被完全渗透到开口腔中。 本发明具有用于空气射流的供应管道的布置，其以射流动量被引导到开放空腔中，使得热气体被引入不进入开放空腔并且形成靠近该热气体路径内的至少一个热气体涡流 开放的腔体，防止热气体渗入热空气涡流延伸的开放腔内。

公开(公告)号：US20140197601A1

公开(公告)日：2014-07-17

申请号：US14154487

申请日：2014-01-14

Applicant: ALSTOM Technology Ltd

Inventor： Paul MARLOW ,  Selma Zahirovic ,  Robert Marmilic ,  Marc Widmer ,  Joerg Krückels

IPC: F01D11/04

CPC classification number: F01D11/04 ,  F01D11/005 ,  F01D11/02 ,  F01D25/12 ,  F05D2240/121 ,  F05D2240/127 ,  F16J15/40 ,  F16J15/44 ,  F16J15/443

Abstract: The invention refers to an arrangement for sealing an open cavity against hot gas entrainment. The open cavity is arranged between two axially adjacent stationary components limiting radially a hot gas path of a rotary flow machine, of which at least the downstream component carries at least one airfoil extending radially into said hot gas path. A multitude of air jets is directed into the open cavity such that hot gas flowing over the open cavity is prevented from penetrating into the open cavity completely. The invention has an arrangement of supply conduits for air jets which are directed into the open cavity with a jet momentum such that hot gas is induced not to enter the open cavity and forming at least one hot gas vortex close to the hot gas path within the open cavity and preventing hot gas from penetrating into the open cavity beyond the extension of the hot gas vortex.

Abstract translation: 本发明涉及一种用于密封开放空腔以抵抗热气体夹带的装置。 敞开的空腔布置在两个轴向相邻的固定部件之间径向限制旋转流动机器的热气体通道，其中至少下游部件承载至少一个径向延伸到所述热气体通道中的翼型件。 多个空气射流被引导到开放空腔中，使得流过开放空腔的热气体被完全渗透到开口腔中。 本发明具有用于空气射流的供应管道的布置，其以射流动量被引导到开放空腔中，使得热气体被引入不进入开放空腔并且形成靠近该热气体路径内的至少一个热气体涡流 开放的腔体，防止热气体渗入热空气涡流延伸的开放空腔内。