JPS60261902A - Axial-flow rotary machine - Google Patents
Axial-flow rotary machineInfo
- Publication number
- JPS60261902A JPS60261902A JP11670184A JP11670184A JPS60261902A JP S60261902 A JPS60261902 A JP S60261902A JP 11670184 A JP11670184 A JP 11670184A JP 11670184 A JP11670184 A JP 11670184A JP S60261902 A JPS60261902 A JP S60261902A
- Authority
- JP
- Japan
- Prior art keywords
- height
- axial
- outlet
- inlet
- secondary flow
- 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
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 238000005192 partition Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/145—Means for influencing boundary layers or secondary circulations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
- F01D5/143—Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、蒸気タービン、ガスタービン等の軸流回転機
械に利用するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applied to axial flow rotating machines such as steam turbines and gas turbines.
従来の技術
従来のタービン段落を第３図に示すと、仕切板０４のノ
ズル０１に対してロータ０３の動翼０２を対向せしめる
。動翼０２のシュラウド０５の外側にラジアルフィン０
６を設ける。2. Description of the Related Art A conventional turbine stage is shown in FIG. 3, in which a rotor blade 02 of a rotor 03 is opposed to a nozzle 01 of a partition plate 04. Radial fin 0 on the outside of shroud 05 of rotor blade 02
6 will be provided.
従来の構造はノズル０１および動翼０２共に、入口側０
１１又は０２１と出口側０１２又は０２２の翼高さはζ
１ぼ等しく造られている。In the conventional structure, both the nozzle 01 and the rotor blade 02 are connected to the inlet side 0.
The blade height of 11 or 021 and the outlet side 012 or 022 is ζ
They are created equally.
発明が解決しようとする問題点
ノズル０１又は動翼０２の高さが比較的低い高圧段落に
おいては同一高さであり、ルート側およびチップ側の壁
面で発生成長する二次流れ損失が大きい゛ので、段落性
能が低いという問題点かあつ産。。Problem to be Solved by the Invention In a high-pressure stage where the height of the nozzle 01 or the rotor blade 02 is relatively low, the height is the same, and the secondary flow loss that occurs and grows on the wall surfaces on the root side and the tip side is large. , the problem is that the paragraph performance is low. .
問題点を解決するだめの手段
本発明は、軸流回転機械の動翼において、入口高さより
も出口高さが低くなるように、動翼先端部シュラウドま
９−たけ動翼翼根部を直線的に傾斜させて前記問題点を
解決した。Means for Solving the Problems The present invention provides a rotor blade for an axial flow rotating machine, in which the rotor blade tip shroud and the rotor blade root are straightened so that the outlet height is lower than the inlet height. The above problem was solved by tilting it.
実施例 本発明を添付図面の実施例によシ説明する。Example The invention will be explained by way of example in the accompanying drawings.
第１実施例は第１図に示す如く仕切板４のノズル１に対
してロータ３の動翼２を対向せしめる。In the first embodiment, as shown in FIG. 1, the rotor blades 2 of the rotor 3 are opposed to the nozzles 1 of the partition plate 4.
動翼２の翼根部２３を入口高さより出口高さが高くなる
よう直線的に傾斜させである。従って動翼３とシュラウ
ド５間は入口側２１から出口側２２にかけて狭くなって
いる。The blade root portion 23 of the rotor blade 2 is linearly inclined so that the outlet height is higher than the inlet height. Therefore, the space between the rotor blade 3 and the shroud 5 becomes narrower from the inlet side 21 to the outlet side 22.
第２実姉例を第２図によシ説明すると、第１実施例に対
し、ロータ３の翼根部２３を水平となし、シュラウド５
の内側２４（動翼２先端部〕を人口側２１から出口側２
２にかけて下向き直線的に傾斜せしめる。従って動翼３
とシュラウド５間は入口側２１から出口側２２にかけて
狭くなっている。The second example will be explained with reference to FIG.
from the population side 21 to the outlet side 2
2 and tilt downward in a straight line. Therefore, moving blade 3
The distance between the shroud 5 and the shroud 5 becomes narrower from the inlet side 21 to the outlet side 22.
作用
第１図では翼根部２３が上向きに傾斜しているので、動
翼２内部の流線がやや上向き流れとなシ、第２図ではシ
ュラウド５の内側が下向きに傾斜しているので、動翼２
内部の流線がやや下向流れとなる。Operation In FIG. 1, the blade root 23 is inclined upward, so the streamline inside the rotor blade 2 flows slightly upward, and in FIG. 2, the inside of the shroud 5 is sloped downward, so the flow is wings 2
The internal streamlines flow slightly downward.
発明の効果
本発明は上記の構成であり、第１図、第２図に示すよう
に翼根部又はシュラウドの壁を傾斜させて、流線を傾斜
壁面と反対側の方へ押し付けるので、流れが押し付けら
れる部分では二次流れが抑− 制されるので・１次流れ
損失が低減し・その結果タービン段落の性罷が向上する
。Effects of the Invention The present invention has the above-mentioned configuration, and as shown in FIGS. 1 and 2, the blade root or the wall of the shroud is inclined and the streamlines are pressed toward the side opposite to the inclined wall surface, so that the flow is improved. Since the secondary flow is suppressed in the pressed portion, the primary flow loss is reduced, and as a result, the stiffness of the turbine stage is improved.
又翼根部又は動翼＼の先端部が直線的に傾斜して１ いるがこれは容易に機械加工できる効果がある。Also, the blade root or the tip of the rotor blade is sloped linearly. However, this has the effect of being easily machined.
第１図は本発明のタービン段落の正面図、第２図は本発
明の第２実施例の正面図、第３図は従来例の正面図であ
る。
１・・ノズル、２・・動翼、３・・ロータ、４・・仕切
板、５１トシュラウド、２１・・人口高さ、２２・・出
口高さ、２３・・翼根部。
（ほか２名）
第４図
第２図
第３図
ｎずFIG. 1 is a front view of a turbine stage according to the present invention, FIG. 2 is a front view of a second embodiment of the present invention, and FIG. 3 is a front view of a conventional example. 1. Nozzle, 2. Moving blade, 3. Rotor, 4. Partition plate, 51 Shroud, 21. Population height, 22. Exit height, 23. Blade root. (2 others) Figure 4 Figure 2 Figure 3
Claims (1)
が低くなるように、チップ側シュラウドまたは翼根部を
直線的に傾斜させてなる軸流回転機械。An axial-flow rotating machine in which the tip-side shroud or blade root is linearly inclined so that the outlet height is lower than the inlet height in the moving blades of the axial-flow rotating machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11670184A JPS60261902A (en) | 1984-06-08 | 1984-06-08 | Axial-flow rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11670184A JPS60261902A (en) | 1984-06-08 | 1984-06-08 | Axial-flow rotary machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60261902A true JPS60261902A (en) | 1985-12-25 |
Family
ID=14693694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11670184A Pending JPS60261902A (en) | 1984-06-08 | 1984-06-08 | Axial-flow rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60261902A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5254808A (en) * | 1975-10-31 | 1977-05-04 | Hitachi Ltd | Blade arrangement device of fluid machine |
| JPS5735102A (en) * | 1980-08-07 | 1982-02-25 | Toshiba Corp | Turbine |
-
1984
- 1984-06-08 JP JP11670184A patent/JPS60261902A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5254808A (en) * | 1975-10-31 | 1977-05-04 | Hitachi Ltd | Blade arrangement device of fluid machine |
| JPS5735102A (en) * | 1980-08-07 | 1982-02-25 | Toshiba Corp | Turbine |
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