发明申请
- 专利标题: Steam turbine nozzle box
- 专利标题(中): 蒸汽轮机喷嘴箱
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申请号: US11058648申请日: 2005-02-16
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公开(公告)号: US20060182625A1公开(公告)日: 2006-08-17
- 发明人: Charles O'Clair , Michael Hamlin
- 申请人: Charles O'Clair , Michael Hamlin
- 申请人地址: US NY Schenectady
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: US NY Schenectady
- 主分类号: F01D9/00
- IPC分类号: F01D9/00
摘要:
A nozzle box includes a torus, bridge ring and nozzle ring portions wherein steam flowing generally circumferentially in the torus portion is redirected for flow generally axially by the bridge ring portion. The steam exiting the bridge ring portion flows into nozzles formed by adjacent partitions of the nozzle ring portion. Bridges in the bridge ring portion are tangentially leaned to exactly match the angle of inclination of the leading edges of the axially adjacent partitions at like circumferential locations. For strength purposes, there are two bridges for each partition. Every other bridge axially registers with the leading edge of the axially downstream partition matching its angle while remaining bridges are equally spaced between the aligned bridges. In this manner, the steam flow is straightened by the bridges to match the angle of the leading edge of the nozzle partitions with consequent reduction of passage area loss.
公开/授权文献
- US07207773B2 Steam turbine nozzle box 公开/授权日:2007-04-24
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