GB1085386A - Improvements in or relating to sealing arrangements for turbine shafts - Google Patents
Improvements in or relating to sealing arrangements for turbine shaftsInfo
- Publication number
- GB1085386A GB1085386A GB2397065A GB2397065A GB1085386A GB 1085386 A GB1085386 A GB 1085386A GB 2397065 A GB2397065 A GB 2397065A GB 2397065 A GB2397065 A GB 2397065A GB 1085386 A GB1085386 A GB 1085386A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pockets
- nitrogen
- cylinder
- gas
- supplied
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
- F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
- F16J15/443—Free-space packings provided with discharge channels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
1,085,386. Shaft seals. ENGLISH ELECTRIC CO. Ltd. June 3, 1966 [June 4, 1965], No. 23970/65. Heading F2B. Shaft sealing means to reduce loss from a turbo-generator cylinder 2 of nitrogen supplied thereto when shutting-down comprises inner -and outer annular pockets in each of the shaft glands 7, the outer pockets 8 being kept at a pressure below atmospheric and the inner pockets 9 being supplied with gas, preferably nitrogen, at a pressure above that of the outer pockets but less than that in the cylinder 2, whereby air A is drawn inwardly into the outer pockets and gas N from the inner pockets together with nitrogen E escaping from the cylinder is drawn outwardly into the outer pockets which are connected to a nitrogen recovery system. The outer pockets 8 are connected by pipes 14 and 15 to the suction side of a gas circulator 19 discharging air laden nitrogen to a gas clean-up plant 24 from which nitrogen is fed via pipes 12 and 13 to the inner pockets 9 at a pressure slightly less than that of the nitrogen supplied to the cylinder 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2397065A GB1085386A (en) | 1965-06-04 | 1965-06-04 | Improvements in or relating to sealing arrangements for turbine shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2397065A GB1085386A (en) | 1965-06-04 | 1965-06-04 | Improvements in or relating to sealing arrangements for turbine shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1085386A true GB1085386A (en) | 1967-09-27 |
Family
ID=10204330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2397065A Expired GB1085386A (en) | 1965-06-04 | 1965-06-04 | Improvements in or relating to sealing arrangements for turbine shafts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1085386A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3908374A1 (en) * | 1988-03-21 | 1989-10-05 | Sunds Defibrator Jylha Oy | Seal for sealing the leadthrough of a rotatable shaft of a refiner |
| EP0622525A1 (en) * | 1993-04-24 | 1994-11-02 | KSB Aktiengesellschaft | Structural elements having a radial gap |
| WO2016012237A1 (en) * | 2014-07-25 | 2016-01-28 | Thyssenkrupp Industrial Solutions Ag | Sealing device for sealing a rotatable shaft of a gas compressor and/or of a gas expander in an installation for producing nitric acid |
| CN111502776A (en) * | 2020-04-28 | 2020-08-07 | 西安陕鼓动力股份有限公司 | Nitrogen sealing system and method for turboexpander with stator blade adjusting cavity seal |
-
1965
- 1965-06-04 GB GB2397065A patent/GB1085386A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3908374A1 (en) * | 1988-03-21 | 1989-10-05 | Sunds Defibrator Jylha Oy | Seal for sealing the leadthrough of a rotatable shaft of a refiner |
| EP0622525A1 (en) * | 1993-04-24 | 1994-11-02 | KSB Aktiengesellschaft | Structural elements having a radial gap |
| WO2016012237A1 (en) * | 2014-07-25 | 2016-01-28 | Thyssenkrupp Industrial Solutions Ag | Sealing device for sealing a rotatable shaft of a gas compressor and/or of a gas expander in an installation for producing nitric acid |
| CN111502776A (en) * | 2020-04-28 | 2020-08-07 | 西安陕鼓动力股份有限公司 | Nitrogen sealing system and method for turboexpander with stator blade adjusting cavity seal |
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