CN202073600U - Blade crown structure for steam turbine blade - Google Patents
Blade crown structure for steam turbine blade Download PDFInfo
- Publication number
- CN202073600U CN202073600U CN2011201626122U CN201120162612U CN202073600U CN 202073600 U CN202073600 U CN 202073600U CN 2011201626122 U CN2011201626122 U CN 2011201626122U CN 201120162612 U CN201120162612 U CN 201120162612U CN 202073600 U CN202073600 U CN 202073600U
- Authority
- CN
- China
- Prior art keywords
- blade
- blades
- integral shroud
- steam turbine
- adjacent
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a blade crown structure for a steam turbine blade, which comprises a blade crown, and has an innovation point that a front beveled edge is arranged at the boundary of the upper end surface and the internal radial surface of the blade crown, and a back beveled edge is arranged at the boundary of the upper end surface and the back radial surface of the blade crown. The blade crown structure has the advantages that when the blade is assembled on a rotor, the blade crowns of all blades are adjacent and are surrounded into a ring shape, and the front beveled edges and the back beveled edges of the adjacent blade crowns form a V-shaped welding beveled edge, so the blade crowns of the adjacent blades are welded together, the radial lines of the blades are ensured to be positioned in the same plane, and the operation stability of the blades is ensured.
Description
Technical field
The utility model relates to a kind of turbine blade, particularly a kind of integral shroud structure of turbine blade.
Background technique
Turbine blade is to flow by certain orientation in order to the guiding fluid in the steam turbine, and promotes the vitals of rotor rotation.Some blades need be looped around on the rotor ringwise during assembling, and the moving vane radial ray time usually takes place not in conplane phenomenon in assembling, fluctuation of service, thus influence the generating efficiency of steam turbine.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of integral shroud structure of turbine blade, can guarantee that the radial ray of blade is in the same plane, improves the blade operation stability.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of integral shroud structure of turbine blade, comprise integral shroud, its innovative point is: the upper-end surface of described integral shroud and the intersection of interior sagittal plane have preceding groove, and the upper-end surface of integral shroud has the back groove with the intersection of back of the body sagittal plane.
Advantage of the present utility model is: when vane group is contained on the rotor, annular of integral shroud adjacent ring coiled of each blade, the preceding groove of adjacent integral shroud and back groove constitute a V-shaped welding groove, make the integral shroud of adjacent blades be soldered to together, the radial ray that guarantees blade is positioned at same plane, guarantees the stability of blade operation.
Description of drawings
Fig. 1 is the integral shroud structure plan view of the utility model turbine blade.
Fig. 2 is the blade shroud structural representation of a pair of next-door neighbour in the utility model steam turbine.
Embodiment
As shown in Figure 1, comprise integral shroud 1, groove 2 before the intersection of the upper-end surface of integral shroud 1 and interior sagittal plane has, the upper-end surface of integral shroud 1 has back groove 3 with the intersection of back of the body sagittal plane.As shown in Figure 2, the preceding groove 2 of the back groove 3 of last blade shroud 1 and back one blade shroud constitutes a single V groove that is used to weld.
Claims (1)
1. the integral shroud structure of a turbine blade comprises integral shroud, it is characterized in that: the upper-end surface of described integral shroud and the intersection of interior sagittal plane have preceding groove, and the upper-end surface of integral shroud has the back groove with the intersection of back of the body sagittal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201626122U CN202073600U (en) | 2011-05-20 | 2011-05-20 | Blade crown structure for steam turbine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201626122U CN202073600U (en) | 2011-05-20 | 2011-05-20 | Blade crown structure for steam turbine blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202073600U true CN202073600U (en) | 2011-12-14 |
Family
ID=45111707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201626122U Expired - Fee Related CN202073600U (en) | 2011-05-20 | 2011-05-20 | Blade crown structure for steam turbine blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202073600U (en) |
-
2011
- 2011-05-20 CN CN2011201626122U patent/CN202073600U/en not_active Expired - Fee Related
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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: 20111214 Termination date: 20140520 |