JPS55139903A - Steam turbine with double-flow nozzle box - Google Patents
Steam turbine with double-flow nozzle boxInfo
- Publication number
- JPS55139903A JPS55139903A JP4670179A JP4670179A JPS55139903A JP S55139903 A JPS55139903 A JP S55139903A JP 4670179 A JP4670179 A JP 4670179A JP 4670179 A JP4670179 A JP 4670179A JP S55139903 A JPS55139903 A JP S55139903A
- Authority
- JP
- Japan
- Prior art keywords
- vortex flows
- nozzle box
- double
- rotor
- caused
- 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.)
- Granted
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To prevent vortex flows and protect a double-flow nozzle box from erosion due to solid particles, by providing annular steps on a turbine rotor in face of the inside surface of the nozzle box.
CONSTITUTION: When a rotor 2 is rotated, vortex flows 12a, 12b are caused by the rotation of discs 2a, 2b in leaking steam containing solid particles which flow down in an opening 9. Other vortex flows 13a, 13b, the revolving direction of which are shown by opposite dotted lines in the drawing, are caused in a chest opening 9a by the said vortex flows 12a, 12b through a minimum gap 18. Since slopes 16a, 16b are provided on the annular recess 16 of the turbine rotor 2, centrifugal forces are caused along the slopes by the rotation of the rotor 2 so that other vortex flows 17a, 17b whose revolving directions are opposite to those of the said vortex flows 13a, 13b and shown by other dotted lines in the drawing are produced. As a result, the vortex flows 13a, 13b and the other vortex flows 17a, 17b are cancelled by each other.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54046701A JPS5840642B2 (en) | 1979-04-18 | 1979-04-18 | Steam turbine with double flow nozzle box |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54046701A JPS5840642B2 (en) | 1979-04-18 | 1979-04-18 | Steam turbine with double flow nozzle box |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55139903A true JPS55139903A (en) | 1980-11-01 |
JPS5840642B2 JPS5840642B2 (en) | 1983-09-07 |
Family
ID=12754666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54046701A Expired JPS5840642B2 (en) | 1979-04-18 | 1979-04-18 | Steam turbine with double flow nozzle box |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5840642B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59127946U (en) * | 1983-02-16 | 1984-08-28 | 本田技研工業株式会社 | double tooth timing belt |
JPH0328201Y2 (en) * | 1985-02-27 | 1991-06-18 | ||
JPS61150544U (en) * | 1985-03-11 | 1986-09-17 | ||
JPS62199553U (en) * | 1986-06-09 | 1987-12-18 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5350304U (en) * | 1976-10-01 | 1978-04-27 |
-
1979
- 1979-04-18 JP JP54046701A patent/JPS5840642B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5350304U (en) * | 1976-10-01 | 1978-04-27 |
Also Published As
Publication number | Publication date |
---|---|
JPS5840642B2 (en) | 1983-09-07 |
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