公开(公告)号：US09574454B2

公开(公告)日：2017-02-21

申请号：US14341336

申请日：2014-07-25

Applicant: ALSTOM Technology Ltd

Inventor： Timothy George Shurrock ,  Robert Cunningham

IPC: F01D9/02 ,  F01D9/04 ,  F01D9/06 ,  F01D17/18 ,  F01D25/24

CPC classification number: F01D9/047 ,  F01D9/02 ,  F01D9/04 ,  F01D9/06 ,  F01D17/18 ,  F01D25/24 ,  F01D25/246 ,  F05D2220/31

Abstract: The invention relates to a full arc admission steam turbine, which includes a plurality of nozzle boxes for inducing steam, and a plurality of nozzle plates for bearing nozzles, one nozzle plate corresponding to each nozzle box. The steam turbine 100 further includes a plurality of spacer plates corresponding to the plurality of nozzle boxes, wherein the spacer plate is disposed between the nozzle plate and the nozzle box, by which a flow path is formed between the plurality of nozzle boxes and the plurality of the nozzle plates through the plurality of spacer plates to achieve a full arc admission. With the solution according to embodiments of the present invention, existing partial arc steam turbine may be easily converted to be a full arc admission steam turbine. This will reduce cost of equipment upgrading. Outage due to onsite conversion may be significantly reduced.

Abstract translation: 本发明涉及一种全电弧进入汽轮机，其包括用于引导蒸汽的多个喷嘴箱，以及用于轴承喷嘴的多个喷嘴板，对应于每个喷嘴箱的一个喷嘴板。 蒸汽轮机100还包括与多个喷嘴箱对应的多个间隔板，其中间隔板设置在喷嘴板和喷嘴箱之间，在多个喷嘴箱和多个喷嘴箱之间形成流路 的喷嘴板通过多个间隔板以实现完全电弧进入。 利用根据本发明的实施例的解决方案，现有的部分电弧蒸汽轮机可以容易地转换为全电弧进入汽轮机。 这将降低设备升级成本。 由于现场转换而导致的停电可能会大大降低。