JPS5632013A - Steam valve preventing solid particle inflow - Google Patents
Steam valve preventing solid particle inflowInfo
- Publication number
- JPS5632013A JPS5632013A JP10724779A JP10724779A JPS5632013A JP S5632013 A JPS5632013 A JP S5632013A JP 10724779 A JP10724779 A JP 10724779A JP 10724779 A JP10724779 A JP 10724779A JP S5632013 A JPS5632013 A JP S5632013A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- valve
- strainer
- solid particles
- inflow
- 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
- 239000002245 particle Substances 0.000 title abstract 5
- 239000007787 solid Substances 0.000 title abstract 5
- 239000012530 fluid Substances 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
Landscapes
- Control Of Turbines (AREA)
Abstract
PURPOSE: To prevent inflow of solid particles into a steam turbine by a method wherein a strainer for usual operating time and a strainer for starting time are provided in a steam valve and a plural serieses of steam pipes and steam inflow switching valves are provided before the inlet port of the steam valve.
CONSTITUTION: A strainer 22 for starting time with a fine mesh, is provided in a main steam stop valve 3 and a reheated steam valve 8 other than a strainer 15 for usual operating time and arrests solid particles. A steam inflow switching valve 25 for the starting time and a steam inflow switching valve 26 for the usual operating time are provided at an upper stream side of the steam valve. Upon the starting of the turbine, the switching valve 25 is opened while the switching valve 26 is closed and steam flows into the main steam stop valve from an upper side pipe 7a while the solid particles are arrested in the strainer 22. The arrested solid particles are moved by fluid supplied from a fluid supplying line 23 and is discharged to the outside of the valve through a discharging line 24. Thus, decreasing of an efficiency, due to increases in an area of a steam passing portion for a nozzle or in gaps in the radial direction of packings, and radial fins and the like, can be restricted.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10724779A JPS5632013A (en) | 1979-08-24 | 1979-08-24 | Steam valve preventing solid particle inflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10724779A JPS5632013A (en) | 1979-08-24 | 1979-08-24 | Steam valve preventing solid particle inflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5632013A true JPS5632013A (en) | 1981-04-01 |
Family
ID=14454203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10724779A Pending JPS5632013A (en) | 1979-08-24 | 1979-08-24 | Steam valve preventing solid particle inflow |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5632013A (en) |
-
1979
- 1979-08-24 JP JP10724779A patent/JPS5632013A/en active Pending
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