CN212563338U - Long-service-life fork-shaped twisted blade of steam turbine - Google Patents
Long-service-life fork-shaped twisted blade of steam turbine Download PDFInfo
- Publication number
- CN212563338U CN212563338U CN202020788097.8U CN202020788097U CN212563338U CN 212563338 U CN212563338 U CN 212563338U CN 202020788097 U CN202020788097 U CN 202020788097U CN 212563338 U CN212563338 U CN 212563338U
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- blade
- blade root
- steam turbine
- pinhole
- oil film
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Abstract
The utility model belongs to the technical field of the turbine blade, especially, for a leaf is turned round to steam turbine high life Y-type, including the blade body, the surface of blade body is provided with the abrasionproof oil film, and the medial surface of abrasionproof oil film is provided with the oil liquid layer, and the lower terminal surface of blade body is provided with the blade root, and the surface of blade root is provided with the connecting block, and the both sides of blade root all are provided with the stabilizer blade, and the lower terminal surface of stabilizer blade is provided with the supporting seat, and the medial surface of supporting seat is provided with first pinhole and second pinhole, and the medial surface of first pinhole. The utility model completely isolates the blade body from the outside air by arranging the anti-abrasion oil film and the oil liquid layer, thereby avoiding the impurities in the air from damaging the blade and prolonging the service life of the blade; through setting up connecting block and spread groove, meshing connection carries out between blade root and the supporting seat, makes connecting more inseparabler between the structure, has weakened the influence of centrifugal force to the device.
Description
Technical Field
The utility model relates to a steam turbine blade technical field specifically is a leaf is turned round to steam turbine high life Y-type.
Background
The blade is a key part of the steam turbine and is one of the finest and most important parts; it bears the combined action of high temperature, high pressure, huge centrifugal force, steam exciting force, corrosion and vibration and wet steam area water drop erosion under extremely harsh conditions; the twisted blade is different from the blade profile from the blade root to the blade tip, and the blade is not only twisted but also bent along the blade height direction.
There are the following problems:
1. the currently used fork twisted blades are directly exposed in the outside air, and the components of the air are mixed, so that the blades are damaged, and the service life of the blades is shortened.
2. The fork-shaped twisted blades used at present are fixed in a pin connection mode, and when the blades work, centrifugal force can be generated, so that the pins easily slide, the connection of the blades is loosened, and the use of workers is inconvenient.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a leaf is turned round to steam turbine high life Y-shaped has solved the air and has turned round the damage that the leaf brought and the easy gliding problem of pin to Y-shaped.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a leaf is turned round to steam turbine high life Y-type, includes the blade body, the surface of blade body is provided with the abrasionproof oil film, the medial surface of abrasionproof oil film is provided with the oil liquid layer, the lower terminal surface of blade body is provided with the blade root, the surface of blade root is provided with the connecting block, the both sides of blade root all are provided with the stabilizer blade, the lower terminal surface of stabilizer blade is provided with the supporting seat, the medial surface of supporting seat is provided with first pinhole and second pinhole, the medial surface of first pinhole is provided with first fixed pin, the medial surface of second pinhole is provided with the second fixed pin, the surface of connecting block is provided with the spread groove, the medial surface of blade root is provided with the through-hole, the lower terminal surface of supporting seat is provided with the connecting.
As a preferred technical scheme of the utility model, abrasionproof oil film fixed connection is in the surface of blade body, oil liquid layer swing joint is in the medial surface of abrasionproof oil film.
As a preferred technical scheme of the utility model, blade root fixed connection is in the lower terminal surface of blade body, connecting block fixed connection is in the surface of blade root.
As a preferred technical scheme of the utility model, the stabilizer blade is fixed connection in the both sides of blade root respectively, supporting seat swing joint is in the lower terminal surface of stabilizer blade.
As a preferred technical scheme of the utility model, first pinhole and the equal fixed connection in the medial surface of supporting seat in second pinhole, first fixed pin swing joint is in the medial surface of first pinhole.
As a preferred technical scheme of the utility model, second fixed pin swing joint is in the medial surface of second pinhole, the spread groove meshing is connected in the surface of connecting block.
As a preferred technical scheme of the utility model, through-hole fixed connection is in the medial surface of blade root, connecting seat fixed connection is in the lower terminal surface of supporting seat.
As a preferred technical scheme of the utility model, compensating groove fixed connection is in the medial surface of connecting seat, balancing piece swing joint is in the medial surface of compensating groove.
Compared with the prior art, the utility model provides a leaf is turned round to steam turbine high life Y-shaped possesses following beneficial effect:
1. this leaf is turned round to steam turbine high life Y-type through setting up abrasionproof oil film and oil liquid layer, completely isolated blade body and outside air, has avoided the impurity in the air to damage the blade to the life of blade has been prolonged.
2. This leaf is turned round to steam turbine high life Y-type through setting up connecting block and spread groove, meshes between blade root and the supporting seat and is connected, makes the inseparabler of connecting between the structure, has weakened the influence of centrifugal force to the device.
Drawings
FIG. 1 is a connection diagram of a blade root according to the present invention;
FIG. 2 is a structural view of the blade body of the present invention;
fig. 3 is a sectional view of the blade body of the present invention.
In the figure: 1. a leaf body; 2. an anti-wear oil film; 3. an oil layer; 4. a blade root; 5. connecting blocks; 6. a support leg; 7. a supporting seat; 8. a first pin hole; 9. a second pin hole; 10. a first fixing pin; 11. a second fixing pin; 12. connecting grooves; 13. a through hole; 14. a balancing tank; 15. a counterbalance; 16. a connecting seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a leaf is turned round to steam turbine high life Y-type, including blade 1, the surface of blade 1 is provided with abrasionproof oil film 2, the medial surface of abrasionproof oil film 2 is provided with oil liquid layer 3, the lower terminal surface of blade 1 is provided with blade root 4, the surface of blade root 4 is provided with connecting block 5, the both sides of blade root 4 all are provided with stabilizer blade 6, the lower terminal surface of stabilizer blade 6 is provided with supporting seat 7, the medial surface of supporting seat 7 is provided with first pinhole 8 and second pinhole 9, the medial surface of first pinhole 8 is provided with first fixed pin 10, the medial surface of second pinhole 9 is provided with second fixed pin 11, the surface of connecting block 5 is provided with spread groove 12, the medial surface of blade root 4 is provided with through-hole 13, the lower terminal surface of supporting seat 7 is provided with connecting seat 16, the medial.
In the embodiment, the main body of the blade consists of a blade body 1 and a blade root 4; the blade body 1 provides a supporting function for the anti-abrasion oil film 2; the anti-abrasion oil film 2 prevents leakage of oil in the oil liquid layer 3, and the blade root 4 connects the blade body 1 with the supporting seat 7.
Specifically, abrasionproof oil film 2 fixed connection is in the surface of blade 1, and fluid layer 3 swing joint is in the medial surface of abrasionproof oil film 2.
In this embodiment, the anti-wear oil film 2 provides a protective effect for the blade body 1; the oil layer 3 isolates the blade body 1 from the outside.
Specifically, the blade root 4 is fixedly connected to the lower end face of the blade body 1, and the connecting block 5 is fixedly connected to the outer surface of the blade root 4.
In this embodiment, the blade root 4 provides a support for the foot 6; the connecting block 5 and the connecting groove 12 are matched for use, and auxiliary force is provided for connection between devices.
Specifically, the support legs 6 are respectively fixedly connected to two sides of the blade root 4, and the support base 7 is movably connected to the lower end face of the support legs 6.
In this embodiment, the support foot 6 connects the blade root 4 with the support base 7; the support seat 7 provides support for the first pin hole 8 and the second pin hole 9.
Specifically, the first pin hole 8 and the second pin hole 9 are both fixedly connected to the inner side surface of the support base 7, and the first fixing pin 10 is movably connected to the inner side surface of the first pin hole 8.
In this embodiment, the first pin hole 8 and the second pin hole 9 are used to match the first fixing pin 10 and the second fixing pin 11, respectively.
Specifically, the second fixing pin 11 is movably connected to the inner side surface of the second pin hole 9, and the connecting groove 12 is engaged with and connected to the outer surface of the connecting block 5.
In this embodiment, the connecting groove 12 is used in cooperation with the connecting block 5, so that the influence caused by centrifugal force is reduced.
Specifically, the through hole 13 is fixedly connected to the inner side surface of the blade root 4, and the connecting seat 16 is fixedly connected to the lower end surface of the supporting seat 7.
In the embodiment, the through hole 13 is matched with the first pin hole 8 and the second pin hole 9 together to connect the fixing pin; connecting base 16 supports balancing slot 14.
Specifically, the balance groove 14 is fixedly connected to the inner side surface of the connecting seat 16, and the balance weight 15 is movably connected to the inner side surface of the balance groove 14.
In this embodiment, the balance groove 14 is used for accommodating the balance weight 15; the counterbalance 15 provides a counterbalancing force to the device.
The utility model discloses a theory of operation and use flow: at first take the blade through blade body 1, then put into supporting seat 7 with stabilizer blade 6, make connecting block 5 and spread groove 12 on 4 surfaces of blade root cooperate, cooperation through between connecting block 5 and the spread groove 12 is used, it is connected to mesh between blade root 4 and the supporting seat 7, it is inseparabler to make the connection between the structure, the influence of centrifugal force to the device has been weakened, then put into first pinhole 8 respectively with first fixed pin 10 and second fixed pin 11, in the second pinhole 9, thereby fix the blade, the abrasionproof oil film 2 on device surface has provided the guard action for blade body 1, the inside fluid layer 3 of abrasionproof oil film 2 completely isolates blade body 1 with outside air, impurity damage blade in the air has been avoided, thereby the life of blade has been prolonged.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a turbine high life forked turning vane, includes blade body (1), its characterized in that: the outer surface of the blade body (1) is provided with an anti-abrasion oil film (2), the inner side of the anti-abrasion oil film (2) is provided with an oil liquid layer (3), the lower end face of the blade body (1) is provided with a blade root (4), the outer surface of the blade root (4) is provided with a connecting block (5), both sides of the blade root (4) are provided with support legs (6), the lower end face of each support leg (6) is provided with a support seat (7), the inner side of each support seat (7) is provided with a first pin hole (8) and a second pin hole (9), the inner side of each first pin hole (8) is provided with a first fixing pin (10), the inner side of each second pin hole (9) is provided with a second fixing pin (11), the outer surface of each connecting block (5) is provided with a connecting groove (12), the inner side of the blade root (4) is provided with, the inner side surface of the connecting seat (16) is provided with a balance groove (14), and the inner side surface of the balance groove (14) is provided with a balance block (15).
2. A steam turbine high life fork twist vane as claimed in claim 1, wherein: abrasionproof oil film (2) fixed connection is in the surface of blade body (1), oil liquid layer (3) swing joint is in the medial surface of abrasionproof oil film (2).
3. A steam turbine high life fork twist vane as claimed in claim 1, wherein: the blade root (4) is fixedly connected to the lower end face of the blade body (1), and the connecting block (5) is fixedly connected to the outer surface of the blade root (4).
4. A steam turbine high life fork twist vane as claimed in claim 1, wherein: stabilizer blade (6) fixed connection is respectively in the both sides of blade root (4), supporting seat (7) swing joint is in the lower terminal surface of stabilizer blade (6), first pinhole (8) and the equal fixed connection in medial surface of supporting seat (7) of second pinhole (9), first fixed pin (10) swing joint is in the medial surface of first pinhole (8).
5. A steam turbine high life fork twist vane as claimed in claim 1, wherein: the second fixing pin (11) is movably connected to the inner side face of the second pin hole (9), and the connecting groove (12) is connected to the outer surface of the connecting block (5) in an engaged mode.
6. A steam turbine high life fork twist vane as claimed in claim 1, wherein: the through hole (13) is fixedly connected to the inner side surface of the blade root (4), and the connecting seat (16) is fixedly connected to the lower end surface of the supporting seat (7).
7. A steam turbine high life fork twist vane as claimed in claim 1, wherein: the balance groove (14) is fixedly connected to the inner side face of the connecting seat (16), and the balance block (15) is movably connected to the inner side face of the balance groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020788097.8U CN212563338U (en) | 2020-05-13 | 2020-05-13 | Long-service-life fork-shaped twisted blade of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020788097.8U CN212563338U (en) | 2020-05-13 | 2020-05-13 | Long-service-life fork-shaped twisted blade of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212563338U true CN212563338U (en) | 2021-02-19 |
Family
ID=74624226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020788097.8U Expired - Fee Related CN212563338U (en) | 2020-05-13 | 2020-05-13 | Long-service-life fork-shaped twisted blade of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212563338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106715A (en) * | 2022-07-20 | 2022-09-27 | 华能国际电力股份有限公司 | Device for repairing damage of fork-shaped blade root wheel disc and assembling method |
-
2020
- 2020-05-13 CN CN202020788097.8U patent/CN212563338U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106715A (en) * | 2022-07-20 | 2022-09-27 | 华能国际电力股份有限公司 | Device for repairing damage of fork-shaped blade root wheel disc and assembling method |
| CN115106715B (en) * | 2022-07-20 | 2023-05-05 | 华能国际电力股份有限公司 | Device for repairing damage of fork-shaped blade root wheel disc and assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210219 |