公开(公告)号：US20150125260A1

公开(公告)日：2015-05-07

申请号：US14533537

申请日：2014-11-05

申请人： Mitsubishi Hitachi Power Systems, Ltd.

发明人： Genki KASHIMA ,  Toyohiko MASUDA ,  Tetsuya HINUMA ,  Isao SAGAWA ,  Yoshitaka NARIMATSU ,  Hotaka KOBAYASHI ,  Goingwon LEE ,  Kenji SASAKI

IPC分类号： F01D25/12

CPC分类号： F01D25/12 ,  F01D21/00 ,  F01D25/24 ,  F01K5/02 ,  F02C7/12 ,  F05D2220/31 ,  F05D2260/232

摘要： The invention offers a steam turbine forced air cooling system, its method, and a steam turbine provided with the system, the system being of an inexpensive and simple device configuration and improving a cooling effect by the use of an easy-to-get device.Suction is applied to the steam introduction side of an HP turbine 4 or an IP turbine 9 by the use of cooling air suction ejectors 27, 28 which use a compressed medium other than steam as a drive source. The cooling air is then introduced from the steam exhaust portion of the steam turbine into the inside of the steam turbine and is discharged from the ejectors 27, 28 to the atmosphere.

摘要翻译： 本发明提供了一种蒸汽轮机强制空气冷却系统及其方法，以及配备有该系统的蒸汽轮机，该系统是廉价且简单的装置结构，并且通过使用易于使用的装置来改善冷却效果。 通过使用使用蒸汽以外的压缩介质作为驱动源的冷却空气吸入喷射器27,28，对HP涡轮4或IP涡轮9的蒸汽引入侧进行吸引。 然后将冷却空气从蒸汽轮机的蒸汽排出部分引入蒸汽涡轮机的内部，并从喷射器27,28排放到大气中。