CN207177974U - Steam turbine high efficiency erosion resistance turns to movable vane - Google Patents
Steam turbine high efficiency erosion resistance turns to movable vane Download PDFInfo
- Publication number
- CN207177974U CN207177974U CN201721171174.XU CN201721171174U CN207177974U CN 207177974 U CN207177974 U CN 207177974U CN 201721171174 U CN201721171174 U CN 201721171174U CN 207177974 U CN207177974 U CN 207177974U
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- CN
- China
- Prior art keywords
- movable vane
- steam turbine
- high efficiency
- erosion resistance
- turns
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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
It the utility model is related to a kind of steam turbine and turn to movable vane, movable vane is turned to more particularly, to a kind of steam turbine high efficiency erosion resistance.Its turbine blade for mainly solving present in prior art is more not easy when in use because the impulsive force received is larger, during steering, and wearability is poor, water conservancy diversion is ineffective, therefore service life is shorter, can not use in steam turbine turns to movable vane, the technical problem of the higher grade of production cost.The utility model includes movable vane body（1）, described movable vane body（1）Bottom be provided with connector（2）, the neck of connector is provided with groove（3）, the outer surface of stator body is provided with into vapour intrados（4）, enter vapour intrados indent and overall rectangular, stator body integrally bending camber, and it is provided with extends tangent line at one end（5）.
Description
Technical field
It the utility model is related to a kind of steam turbine and turn to movable vane, turned to more particularly, to a kind of steam turbine high efficiency erosion resistance
Movable vane.
Background technology
Steam turbine blade is mounted on turbine rotor, and produces moment of torsion under the vapor action of HTHP, is made
The important component of turbine rotor high-speed rotation.Chinese patent discloses a kind of final stage moving blade of feed pump industrial steam turbine
（Publication number：CN106256993A）, a kind of final stage moving blade of feed pump industrial steam turbine, including be sequentially connected blade root,
Blade and for making blade form the shroud of whole circle self-locking, blade is provided with lacing wire boss, and the molded line of blade is variable cross-section distortion type
Line, have relative torsion between the two neighboring section of blade, along blade root to shroud short transverse, with blade with respect to the high H of leaf by
0% monotonicallys increase up to 100%, and the pitch to chord length in tea residue section to leaf top section is than T/b changing rule：0.2≤T/b≤
1.0, the pitch from tea residue section to leaf top section is than T/B changing rule with blade profile section axial width：0.2≤T/B≤
4.0；Pitch from tea residue section to leaf top section is than T/Dmax changing rule with blade profile section maximum gauge：2.4≤T/
Dmax≤17.6；Pitch from tea residue section to leaf top section is than T/A changing rule with blade profile area of section：0.02≤T/A
≤0.3；Blade profile leading-edge radius R0 changing rules from tea residue section to leaf top section are：1.6mm≤R0≤2.2mm；From tea residue
The blade profile trailing edge radius R1 changing rules of section to leaf top section are：0.7mm≤R1≤1.1mm.But this turbine blade
More it is not easy when in use because the impulsive force received is larger, during steering, wearability is poor, and water conservancy diversion is ineffective, therefore uses
Life-span is shorter, can not use in steam turbine turns to movable vane, production cost is higher.
Utility model content
The utility model is to provide a kind of steam turbine high efficiency erosion resistance and turns to movable vane, and it mainly solves prior art institute
Existing turbine blade is larger due to the impulsive force received when in use, is more not easy during steering, and wearability is poor, water conservancy diversion effect
Fruit is bad, therefore service life is shorter, can not use in steam turbine turns to movable vane, the technical problem of the higher grade of production cost.
Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：
Steam turbine high efficiency erosion resistance of the present utility model turns to movable vane, including movable vane body, described movable vane body
Bottom is provided with connector, and the neck of connector is provided with groove, and the outer surface of stator body is provided with into vapour intrados, enters vapour intrados
Indent and overall rectangular, stator body integrally bending camber, and it is provided with extends tangent line at one end.Connector can be with
For each steering movable vane is fixed together with last stator, ensures the fastness of connection, set groove to be greatly decreased used
Material, save production cost.Vapour can be directed into by entering vapour intrados, and the end set of movable vane can increase steamer into tangent line is extended
The whole efficiency of machine.
Preferably, the end face of described movable vane body is provided with guide surface and positioning step.Guide surface can guide
Enter vapour, positioning step can be used as reference plane when mounted, and installation accuracy is higher.
Preferably, the described outer surface for entering vapour intrados is provided with some water conservancy diversion fins, water conservancy diversion fin spirality row
Cloth.Steam flow can be guided, increased into vapour efficiency by water conservancy diversion fin.
Preferably, being provided with zigzag caulking groove at the described edge air intake for entering vapour intrados, it is embedded with caulking groove
Strengthen alloy-layer.Set and strengthen alloy-layer, it is ensured that enter abrasion-resistance during vapour, increase the service life.Strengthening alloy-layer can
To be made of commercially available high-abrasive material.
Preferably, the side of described movable vane body is inclined-plane, the angle α of itself and vertical plane is 8-15 °.Set inclined-plane can
To be preferably directed into vapour, angle α most preferably can be 10 °.
Therefore, the blade angle that the utility model is set makes as best angle, and using extending tangent line, strengthening alloy-layer
It is smaller that the erosion that movable vane is subject to when rotated must be turned to, it is higher to enter vapour efficiency, therefore service life is longer, and production cost is relatively low,
It is simple and reasonable for structure.
Brief description of the drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model；
Accompanying drawing 2 is Fig. 1 side structure schematic diagram；
Accompanying drawing 3 is Fig. 1 overlooking the structure diagram.
Parts, position and numbering in figure：Movable vane body 1, connector 2, groove 3, enter vapour intrados 4, extend tangent line 5,
Guide surface 6, positioning step 7, water conservancy diversion fin 8, caulking groove 9, reinforcement alloy-layer 10.
Embodiment
Below by embodiment, and with reference to accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment：The steam turbine high efficiency erosion resistance of this example turns to movable vane, as shown in Figure 1, Figure 2, Fig. 3, including movable vane body
1, the bottom of movable vane body is provided with connector 2, and the neck of connector is provided with groove 3, and the outer surface of stator body is provided with into vapour
Cambered surface 4, enter vapour intrados indent and overall rectangular, stator body integrally bending camber, and it is provided with prolongs at one end
Long tangent line 5.The end face of movable vane body is provided with guide surface 6 and positioning step 7.The outer surface for entering vapour intrados is provided with some lead
Flow fin 8, the arrangement of water conservancy diversion fin spirality.Enter and zigzag caulking groove 9 is provided with the edge air intake of vapour intrados, in caulking groove
Embedded with reinforcement alloy-layer 10.The side of movable vane body is inclined-plane, and the angle α of itself and vertical plane is 10 °.
In use, the utility model is encased in the rotor of steam turbine.
Specific embodiment of the utility model is the foregoing is only, but architectural feature of the present utility model is not limited to
This, any those skilled in the art in field of the present utility model, all cover in this practicality newly by the change or modification made
Among the scope of the claims of type.
Claims (5)
1. a kind of steam turbine high efficiency erosion resistance turns to movable vane, including movable vane body（1）, it is characterised in that described movable vane body
（1）Bottom be provided with connector（2）, the neck of connector is provided with groove（3）, the outer surface of stator body is provided with into vapour intrados
（4）, enter vapour intrados indent and overall rectangular, stator body integrally bending camber, and it is provided with extends at one end
Tangent line（5）.
2. steam turbine high efficiency erosion resistance according to claim 1 turns to movable vane, it is characterised in that described movable vane body
（1）End face be provided with guide surface（6）And positioning step（7）.
3. steam turbine high efficiency erosion resistance according to claim 1 or 2 turns to movable vane, it is characterised in that described enters in vapour
Cambered surface（4）Outer surface be provided with some water conservancy diversion fins（8）, the arrangement of water conservancy diversion fin spirality.
4. steam turbine high efficiency erosion resistance according to claim 1 or 2 turns to movable vane, it is characterised in that described enters in vapour
Cambered surface（4）Edge air intake at be provided with zigzag caulking groove（9）, caulking groove is interior to be embedded with reinforcement alloy-layer（10）.
5. steam turbine high efficiency erosion resistance according to claim 1 or 2 turns to movable vane, it is characterised in that described movable vane sheet
Body（1）Side be inclined-plane, the angle α of itself and vertical plane is 8-15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721171174.XU CN207177974U (en) | 2017-09-13 | 2017-09-13 | Steam turbine high efficiency erosion resistance turns to movable vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721171174.XU CN207177974U (en) | 2017-09-13 | 2017-09-13 | Steam turbine high efficiency erosion resistance turns to movable vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207177974U true CN207177974U (en) | 2018-04-03 |
Family
ID=61746158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721171174.XU Expired - Fee Related CN207177974U (en) | 2017-09-13 | 2017-09-13 | Steam turbine high efficiency erosion resistance turns to movable vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207177974U (en) |
-
2017
- 2017-09-13 CN CN201721171174.XU patent/CN207177974U/en not_active Expired - Fee Related
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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: 20180403 Termination date: 20200913 |