JPS55164707A - First-stage high-pressure nozzle diaphragm for steam turbine in use of nuclear energy - Google Patents
First-stage high-pressure nozzle diaphragm for steam turbine in use of nuclear energyInfo
- Publication number
- JPS55164707A JPS55164707A JP7235279A JP7235279A JPS55164707A JP S55164707 A JPS55164707 A JP S55164707A JP 7235279 A JP7235279 A JP 7235279A JP 7235279 A JP7235279 A JP 7235279A JP S55164707 A JPS55164707 A JP S55164707A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- chambers
- stage high
- valves
- control valves
- 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.)
- Pending
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To carry out the partial-load operation of the steam turbine efficiently, by introducing steam controlled by a plurality of steam control valves separately into steam chambers divided into the same number of sections as the steam control valves, and effecting partial injection of steam from separate nozzle groups communicated to respective steam chambers.
CONSTITUTION: A body 60 of the first-stage high-pressure nozzle diaphragm is divided circumferentially into four steam chambers 74W77 by four partition plates 68W71, and the steam controlled by the four steam control valves is introduced into the four steam chambers via separate conduits. At opposite axial end portions of the body 60, there are provided a plurality of the first-stage high-pressure nozzles which are classified into nozzle groups 78W81, 82W85 communicated respectively to the separate steam chambers 74W77. Therefore, if a steam control valve or valves selected are opened and the steam is ejected through a steam chamber or chambers and a nozzle groups or group communicated to said selected steam control valve or valves, partial-load operation of the steam turbine can be carried out efficiently by reducing the steam-flow restricting loss at the outlet of steam control valves.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7235279A JPS55164707A (en) | 1979-06-11 | 1979-06-11 | First-stage high-pressure nozzle diaphragm for steam turbine in use of nuclear energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7235279A JPS55164707A (en) | 1979-06-11 | 1979-06-11 | First-stage high-pressure nozzle diaphragm for steam turbine in use of nuclear energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55164707A true JPS55164707A (en) | 1980-12-22 |
Family
ID=13486824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7235279A Pending JPS55164707A (en) | 1979-06-11 | 1979-06-11 | First-stage high-pressure nozzle diaphragm for steam turbine in use of nuclear energy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55164707A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016071A (en) * | 2012-12-26 | 2013-04-03 | 北京国电蓝天节能科技开发有限公司 | Asymmetrically arranged four-valve steam turbine nozzle block structure |
-
1979
- 1979-06-11 JP JP7235279A patent/JPS55164707A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016071A (en) * | 2012-12-26 | 2013-04-03 | 北京国电蓝天节能科技开发有限公司 | Asymmetrically arranged four-valve steam turbine nozzle block structure |
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