Shrink ring for turbine with bleeding
US6203271A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1999 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Jun 9, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D25/26
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a steam turbine, in particular a high-pressure turbine, which is enclosed by an inner casing, split into a top part and a bottom part, and an outer casing. The steam turbine, for the purpose of bleeding, has a bleed slot, which leads form the blade duct of the steam turbine through the inner casing. According to the invention, the inner casing has a shrink ring, which on the one hand holds together the bottom part and the top part of the inner casing and on the other hand forms an annular space above the bleed slot for the purpose of collecting bleed steam and passing it into a pipe connection. The shrink ring has a cavity in its center and flat sides being adapted to the outer surface of the inner casing. The cavity of the shrink ring, together with the outer surface of the inner casing, forms the enclosed, tight annular space. the shrink ring is distinguished by the few components and a short production and assembly time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.