CN201448125U - Fixed blade of steam turbine diaphragm - Google Patents
Fixed blade of steam turbine diaphragm Download PDFInfo
- Publication number
- CN201448125U CN201448125U CN200920043514XU CN200920043514U CN201448125U CN 201448125 U CN201448125 U CN 201448125U CN 200920043514X U CN200920043514X U CN 200920043514XU CN 200920043514 U CN200920043514 U CN 200920043514U CN 201448125 U CN201448125 U CN 201448125U
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- CN
- China
- Prior art keywords
- blade
- steam turbine
- fixed blade
- steam
- groove
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to the field of a steam turbine blade, in particular to a fixed blade of a steam turbine diaphragm. The fixed blade comprises a blade shroud, a blade body and a blade root. The blade body is a curved cross section structure. The lateral wall of the blade root is provided with a groove which is matched with a boss arranged on a diaphragm body. The blade body adopts the curved cross section structure, fully utilizes the pressure change of the steam at different space, and ensures that steam energy can be fully transformed under both high pressure and low pressure. The groove on the fixed blade is convenient for positioning with good effect, and increases the stability of the fixed blade. The fixed blade is convenient to process, is simple to operate, and greatly improves the working efficiency of a steam turbine.
Description
Technical field
The utility model relates to the turbine blade field, especially a kind of partition board of steam turbine stator blade.
Background technique
Steam turbine is that the transformation of energy with steam is the rotary power machinery of mechanical work, is one of capital equipment of steam power plant.Steam turbine is a kind of turbomachinery, claims steam turbine again.Existing steam turbine stator blade is made up of upper and lower hat and blade, upper and lower label be respectively equipped with partition body on the positioning groove that is complementary of boss, be connected every stator blade on the partition body and fix by positioning groove.But this steam turbine stator blade only is suitable for low-pressure state, and under high pressure conditions, the flow velocity of the steam by this stator blade greatly reduces, and can damage stator blade, thereby has reduced turbine work efficient.
The model utility content
In order to overcome the deficiency that existing steam turbine stator blade can not under high pressure be worked, the utility model provides a kind of partition board of steam turbine stator blade.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of partition board of steam turbine stator blade, comprise integral shroud, blade and blade root, and blade adopts the bending sections structure, and the blade root sidewall is provided with a groove.
According to another embodiment of the present utility model, comprise that further the boss on groove and the partition body is complementary.
The beneficial effects of the utility model are: blade adopts the structure of bending sections, makes full use of the variation in pressure of steam in different spaces, and steam energy all can fully be changed under high low pressure.Groove on the stator blade is convenient to location and effective, has increased the stability of stator blade.This stator blade is convenient to processing, and is simple to operate, improved turbine work efficient widely.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model;
1. integral shrouds among the figure, 2. blade, 3. blade root, 4. groove.
Embodiment
With preferred embodiment the utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As Fig. 1 is structural representation of the present utility model, and a kind of partition board of steam turbine stator blade comprises integral shroud 1, blade 2 and blade root 3, and blade 2 adopts the bending sections structure, and blade root 3 sidewalls are provided with a groove 4.Boss on groove 4 and the partition body is complementary.This stator blade is convenient to processing, and the groove 4 on blade root 3 sidewalls is convenient to location and effective.During assembling, earlier exhaust stage blade and partition body inner and outer rings are had good positioning, successively the partition board of steam turbine stator blade is cooperated with boss on the partition body by groove 4 then to be close to, be welded in one with the partition body inner and outer rings again.Blade 2 adopts the structure of bending sections, makes full use of the variation in pressure of steam in different spaces, and steam energy all can fully be changed under high low pressure, has improved turbine work efficient widely.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, by above-mentioned description, the related work personnel fully can be in the scope that does not depart from this model utility technological thought, carry out various change and modification. the technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (2)
1. a partition board of steam turbine stator blade comprises integral shroud (1), blade (2) and blade root (3), it is characterized in that: blade (2) adopts the bending sections structure, and blade root (3) sidewall is provided with a groove (4).
2. partition board of steam turbine stator blade according to claim 1 is characterized in that: the boss on groove (4) and the partition body is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920043514XU CN201448125U (en) | 2009-06-26 | 2009-06-26 | Fixed blade of steam turbine diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920043514XU CN201448125U (en) | 2009-06-26 | 2009-06-26 | Fixed blade of steam turbine diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448125U true CN201448125U (en) | 2010-05-05 |
Family
ID=42552840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920043514XU Expired - Fee Related CN201448125U (en) | 2009-06-26 | 2009-06-26 | Fixed blade of steam turbine diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171260A (en) * | 2015-09-02 | 2015-12-23 | 中国南方航空工业(集团)有限公司 | Method for processing engine stator component |
-
2009
- 2009-06-26 CN CN200920043514XU patent/CN201448125U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171260A (en) * | 2015-09-02 | 2015-12-23 | 中国南方航空工业(集团)有限公司 | Method for processing engine stator component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20120626 |