JPS56131878A - Control valve - Google Patents
Control valveInfo
- Publication number
- JPS56131878A JPS56131878A JP3264980A JP3264980A JPS56131878A JP S56131878 A JPS56131878 A JP S56131878A JP 3264980 A JP3264980 A JP 3264980A JP 3264980 A JP3264980 A JP 3264980A JP S56131878 A JPS56131878 A JP S56131878A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- steam
- vibration
- time
- valve rod
- 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
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Abstract
PURPOSE: To suppress occurrence of secondary vibration or the like at the time of turbine by-pass operation, by preventing direct collision of jet streams of steam against the valve rod of a control valve.
CONSTITUTION: When a valve rod 3 is urged upward, a valve body 2 is moved away from a valve seat 4. Here, since stream lines SL are inclined downward at an outlet angle θ of a cage 12, steam is made to flow along the surface of valve seat 4 as shown in the drawing. If the stream lines SL collide directly against a guide piece 5 after passing through ports 21, vibration of the guide piece 5 is very small since collision energy possessed by each stream line SL is extremely small. Further, if the collision energy is great, so much influence is not applied to the valve body 2 and the valve rod 3 since the jet streams of steam do not collide directly against the valve rod 3. Therefore, when the control valve is opened rapidly at the time of disconnecting the load, vibration of the valve due to the steam flow can be prevented, and at the same time, minute natural vibration of the valve body possibly caused at the time of operating the valve can also be absorbed by a guide 13 and seal rings 11.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3264980A JPS56131878A (en) | 1980-03-17 | 1980-03-17 | Control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3264980A JPS56131878A (en) | 1980-03-17 | 1980-03-17 | Control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56131878A true JPS56131878A (en) | 1981-10-15 |
Family
ID=12364700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3264980A Pending JPS56131878A (en) | 1980-03-17 | 1980-03-17 | Control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56131878A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS622085A (en) * | 1985-06-07 | 1987-01-08 | ハ−ペ−・ウント・ハ−ペ−・ヒエミ−−シユテルグリ−デル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツンク | Noiseless control valve |
-
1980
- 1980-03-17 JP JP3264980A patent/JPS56131878A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS622085A (en) * | 1985-06-07 | 1987-01-08 | ハ−ペ−・ウント・ハ−ペ−・ヒエミ−−シユテルグリ−デル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツンク | Noiseless control valve |
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