JPH02119901U - - Google Patents
Info
- Publication number
- JPH02119901U JPH02119901U JP2805689U JP2805689U JPH02119901U JP H02119901 U JPH02119901 U JP H02119901U JP 2805689 U JP2805689 U JP 2805689U JP 2805689 U JP2805689 U JP 2805689U JP H02119901 U JPH02119901 U JP H02119901U
- Authority
- JP
- Japan
- Prior art keywords
- blade
- steam turbine
- rotor blade
- root center
- water film
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
Description
第１図は本考案による蒸気タービン動翼の一例
を示す子午面の図、第２ａ図、第２ｂ図及び第２
ｃ図はそれぞれ第１図に示した動翼の翼端部、中
央部及び翼根部における断面図、第３図は本考案
により蒸気タービン動翼の他の例を示す子午面の
図、第４図は本考案にしたがつて動翼に設けられ
る水膜排出用溝の形状の一例を示す断面図、第５
図は従来の蒸気ービン動翼を示す子午面の図、第
６図は蒸気タービンにおける静翼翼表面の水滴集
積率を示す図、第７図は蒸気タービンにおける動
翼翼表面の水滴集積率を示す図、第８図は水滴流
出翼高さ位置とドレンキヤツチヤ効率との関係を
示す図である。
１……動翼、１ａ……翼根部、１ｂ……翼端部
、２……静翼、３……ドレンキヤツチヤ、６……
水膜排出用溝。
Fig. 1 is a meridional plane view showing an example of the steam turbine rotor blade according to the present invention, Fig. 2a, Fig. 2b, and Fig. 2.
Figure c is a sectional view of the tip, center and root of the rotor blade shown in Figure 1, Figure 3 is a meridional view showing another example of the steam turbine rotor blade according to the present invention, and Figure 4 is a cross-sectional view of the rotor blade shown in Figure 1. The figure is a sectional view showing an example of the shape of the water film discharge groove provided in the rotor blade according to the present invention.
The figure is a meridional plane view showing a conventional steam turbine rotor blade, Figure 6 is a diagram showing the water droplet accumulation rate on the surface of the stationary blade in a steam turbine, and Figure 7 is a diagram showing the water droplet accumulation rate on the rotor blade surface in a steam turbine. , FIG. 8 is a diagram showing the relationship between the height position of the water droplet outflow blade and the drain catcher efficiency. 1... Moving blade, 1a... Blade root, 1b... Blade tip, 2... Stationary blade, 3... Drain catcher, 6...
Water film drainage groove.
Claims (1)
ヤツチヤの上流側で最も近接した位置にある動翼
の腹面に翼根部の翼幅中央部又はこの翼幅中央部
より翼出口側に位置する部分から翼端部の後縁に
向けて水膜排出用の溝を設けたことを特徴とする
蒸気タービン動翼。 From the blade root center of the blade span or the part located on the blade outlet side from the blade root center to the blade tip of the rotor blade that is closest to the upstream side of the drain catcher installed on the stator blade side of the steam turbine. A steam turbine rotor blade characterized by having a groove for discharging water film toward the trailing edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2805689U JPH02119901U (en) | 1989-03-14 | 1989-03-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2805689U JPH02119901U (en) | 1989-03-14 | 1989-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02119901U true JPH02119901U (en) | 1990-09-27 |
Family
ID=31251094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2805689U Pending JPH02119901U (en) | 1989-03-14 | 1989-03-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02119901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012137094A (en) * | 2012-03-15 | 2012-07-19 | Toshiba Corp | Turbine blade and steam turbine |
-
1989
- 1989-03-14 JP JP2805689U patent/JPH02119901U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012137094A (en) * | 2012-03-15 | 2012-07-19 | Toshiba Corp | Turbine blade and steam turbine |