GB837975A - Nozzlebox structure for elastic fluid turbines - Google Patents
Nozzlebox structure for elastic fluid turbinesInfo
- Publication number
- GB837975A GB837975A GB29133/56A GB2913356A GB837975A GB 837975 A GB837975 A GB 837975A GB 29133/56 A GB29133/56 A GB 29133/56A GB 2913356 A GB2913356 A GB 2913356A GB 837975 A GB837975 A GB 837975A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring
- nozzle
- conduit
- box
- cylindrical
- 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
- F01D9/00—Stators
- F01D9/06—Fluid supply conduits to nozzles or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
837,975. Elastic-fluid turbine nozzle structures. GENERAL ELECTRIC CO. Sept. 24, 1956 [Sept. 30, 1955], No. 29133/56. Class 110 (3). [Also in Group XXVIII] A high-pressure, high-temperature steam turbine comprises an outer casing 1 and an inner casing 2, a number of nozzle-box assemblies being disposed within the inner casing, only one such assembly being shown in the sectional part view of Fig. 1. The nozzle-box assembly comprises a nozzle-box 6 with a projecting inlet conduit 5 secured thereto, the conduit 5 being of circular cross-section and having adjacent the nozzle-box an axially-extending cylindrical portion 5e spaced radially from the conduit so as to define an annular space therewith. A radially-extending locating flange portion 5f is formed integrally with the inlet conduit 5 being spaced axially from the cylindrical portion 5e at the side thereof remote from the nozzle-box. The turbine inner casing 2 has a cylindrical boss portion 3 surrounding the conduit 5 and means are provided for supporting the nozzle-box within the turbine inner casing. The supporting means comprises a pair of lugs 6b, 6c formed on the nozzle-box 6 which engage in an annular groove 2a in the casing and a third lug 6d which engages a recess 2b in the casing. The supporting means also comprises a locking-ring 15 formed of two or more segmental parts, the ring 15 having an axially-extending flange with an inwardly-extending flange 17. The central portion of the ring 15 is entered into the axial space between the cylindrical portion 5e and the locating flange 5f while the flange 17 engages a circumferential groove 18 in the cylindrical boss portion 3, the segmental construction of the ring 15 allowing the parts thereof to be assembled in a radial direction. The parts of the locking-ring 15 are clamped together after assembly by means of a clamping-ring 16 and bolts 20. Four axially-extending keyways such as 5h shown in Fig. 3 are formed in the periphery of the locating flange 5f and four corresponding lugs 16a are formed in the inner periphery of the clamping ring 16. Two blocks 16b of L-shape are disposed on either side of the lug between the sides of the lug and of the keyway 5h. The blocks are secured to the lug 16a after assembly by means of bolts. A multiple ring packing 14 is disposed between the outer surface of the cylindrical extension 5e and the inner surface of the cylindrical boss 3. The inlet conduit 5 is made in two parts 5a, 5b secured together by welding 5d, the part 5b being formed integral with the nozzle-box 6. The end of the conduit 5 engages in a socket 8, a multiple ring packing 7 being disposed therebetween, the socket 8 being formed integrally with a conduit portion 8a which is secured by welding to the inlet conduit 9, and with a thin-walled axial extension 10 which terminates in a thick flange 11. The flange 11 is secured to the turbine outer casing 1 by means of a thick ring member 13 and studs 12. A cylindrical heat-shield 21 is disposed in the annular space between the conduit 5b and the cylindrical extension 5e, the shield 21 having three annular ribs 21c on its inner surface, which define two insulating spaces, and having a helical rib 21d on its outer surface which defines a helical passage for flow of relatively cool steam which enters at 5m and discharges through port 15a in the locking-ring 15. A similar cooling arrangement is provided between the cylindrical extension 10 of the conduit 8a and the boss portion 1a of the outer casing 1. The clamping ring 16 may be formed of a number of segmental parts instead of as a single integral member. Specifications 718,534 and 825,849 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US837975XA | 1955-09-30 | 1955-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB837975A true GB837975A (en) | 1960-06-22 |
Family
ID=22180770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29133/56A Expired GB837975A (en) | 1955-09-30 | 1956-09-24 | Nozzlebox structure for elastic fluid turbines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB837975A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54128347U (en) * | 1978-02-28 | 1979-09-06 | ||
US4642025A (en) * | 1983-06-09 | 1987-02-10 | Bbc Brown, Boveri & Company, Limited | Valve for steam supply on double casing turbines |
JPS6238804A (en) * | 1985-08-14 | 1987-02-19 | ウエスチングハウス エレクトリック コ−ポレ−ション | Assembly of nozzle chamber of steam turbine |
-
1956
- 1956-09-24 GB GB29133/56A patent/GB837975A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54128347U (en) * | 1978-02-28 | 1979-09-06 | ||
US4642025A (en) * | 1983-06-09 | 1987-02-10 | Bbc Brown, Boveri & Company, Limited | Valve for steam supply on double casing turbines |
JPS6238804A (en) * | 1985-08-14 | 1987-02-19 | ウエスチングハウス エレクトリック コ−ポレ−ション | Assembly of nozzle chamber of steam turbine |
JPH0421044B2 (en) * | 1985-08-14 | 1992-04-08 | Westinghouse Electric Corp |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2547619A (en) | Combustor with sectional housing and liner | |
US10731564B2 (en) | Transition structure | |
US3702058A (en) | Double wall combustion chamber | |
US2606741A (en) | Gas turbine nozzle and bucket shroud structure | |
US3019035A (en) | Mounting mechanism for labyrinth seal disc | |
GB2508513A (en) | Device for mounting a spark plug in a combustion engine of a gas turbine engine | |
US2247387A (en) | Elastic fluid turbine diaphragm supporting and centering arrangement | |
GB904138A (en) | Improvements in or relating to stator structures, for example for axial flow gas turbine engines | |
GB806349A (en) | Improvements relating to combustion chambers | |
US2391786A (en) | Turbine nozzle structure | |
GB837975A (en) | Nozzlebox structure for elastic fluid turbines | |
US2905434A (en) | Turbine apparatus | |
US9664067B2 (en) | Seal retaining assembly | |
US2692478A (en) | Turbine burner incorporating removable burner liner | |
US2928586A (en) | Stator for multi-stage axial-flow compressor | |
US2405164A (en) | Turbine stator | |
US20160010478A1 (en) | Gas turbine sealing band arrangement having a locking pin | |
US3844675A (en) | Plural shell axial turbine for operation with high pressure, high temperature steam | |
CA2908341C (en) | Engine structure assembly procedure | |
US5186006A (en) | Mounting for ceramic scroll | |
US2458148A (en) | Rotor construction for turbines | |
KR102616048B1 (en) | Resonator, resonator manufacturing method and combustor arrangement provided with resonator | |
KR20040044120A (en) | Nuclear low pressure packing casing for rotary machine and casing fabrication method | |
US2643086A (en) | Mounting of turbine blades | |
US2849209A (en) | Nozzle construction for turbines |