CN209925032U - Turbine blade capable of reducing resistance - Google Patents
Turbine blade capable of reducing resistance Download PDFInfo
- Publication number
- CN209925032U CN209925032U CN201920148904.7U CN201920148904U CN209925032U CN 209925032 U CN209925032 U CN 209925032U CN 201920148904 U CN201920148904 U CN 201920148904U CN 209925032 U CN209925032 U CN 209925032U
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- Prior art keywords
- blade
- shroud
- semi
- circular steel
- resistance
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Abstract
The utility model discloses a steam turbine blade of reducible resistance, its structure includes blade body, blade shroud and blade root, and blade shroud and blade root are located both ends about the blade body respectively, and its innovation point lies in: its structure still includes 2 semi-circular steel sheets, and the both sides on blade shroud top all are equipped with the screw hole of mutual symmetry, and semi-circular steel sheet's bottom is equipped with the fastening bolt of mutual symmetry, and screw hole and fastening bolt are corresponding, and semi-circular steel sheet passes through fastening bolt and the both sides that the screw hole was fixed at blade shroud top, the utility model discloses simple structure can the effectual resistance that reduces blade rotation in-process air.
Description
The technical field is as follows:
the utility model belongs to the technical field of a steam turbine structural element and specifically relates to a steam turbine blade of reducible resistance.
Background art:
the steam turbine is a rotary power machine which converts the energy of steam into mechanical work, is also called as a steam turbine, is mainly used as a prime mover for power generation, can directly drive various pumps, fans, compressors, ship propellers and the like, and can meet the heat supply requirements in production and life by utilizing the exhaust steam or intermediate extraction steam of the steam turbine.
The steam turbine blade is an important part of a steam turbine generator set, the resistance of the blade in rotation is reduced by changing the shape of the blade in the steam turbine blade commonly used in the market at present, a large number of tests are needed to verify the change mode, the cost is high, and the change mode is difficult to realize for small and medium-sized enterprises.
The utility model has the following contents:
the utility model aims at providing a steam turbine blade of reducible resistance solves one or more among the above-mentioned prior art problem.
In order to solve the technical problem, the utility model provides a steam turbine blade of reducible resistance, its structure includes blade body, blade shroud and blade root, and blade shroud and blade root are located both ends about the blade body respectively, and its innovation point lies in: the structure of the blade shroud structure further comprises 2 semicircular steel plates, threaded holes which are symmetrical to each other are formed in the two sides of the top end of the blade shroud, fastening bolts which are symmetrical to each other are arranged at the bottom of each semicircular steel plate, the threaded holes correspond to the fastening bolts, and the semicircular steel plates are fixed on the two sides of the top of the blade shroud through the fastening bolts and the threaded holes.
Further, the blade body, the blade shroud and the blade root are all made of stainless steel.
Furthermore, a plurality of vent holes are uniformly distributed on the semicircular steel plate 4.
The beneficial effects of the utility model reside in that: the utility model provides a reducible air resistance's steam turbine blade, the design of 2 semi-circular steel sheets can reduce the terminal air flow's of blade resistance, simultaneously, the clearance that forms between two semi-circular steel sheets 4 is favorable to the quick circulation of air, has further reduced the air resistance when the blade rotates.
Description of the drawings:
fig. 1 is a schematic side view of the present invention.
The specific implementation mode is as follows:
in order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
Fig. 1 is the utility model discloses a concrete implementation mode, its structure includes blade body 1, blade shroud 2 and blade root 3 are located blade body 1's both ends about respectively, its structure still includes 2 semi-circular steel sheet 4, the both sides on 2 tops of blade shroud all are equipped with the screw hole 5 of mutual symmetry, semi-circular steel sheet 4's bottom is equipped with the fastening bolt 6 of mutual symmetry, screw hole 5 and fastening bolt 6 are corresponding, semi-circular steel sheet 4 passes through fastening bolt 6 and screw hole 5 to be fixed in the both sides at blade shroud 2 tops, the terminal radian of semi-circular steel sheet 4, when the blade rotates, can reduce the terminal air flow's of blade resistance, and simultaneously, the clearance that forms between two semi-circular steel sheet 4 is favorable to the rapid circulation of air, the air resistance when further having reduced the blade and rotating.
Wherein the blade body 1, the blade shroud 2 and the blade root 3 are all made of stainless steel.
Wherein, a plurality of vent holes 7 are uniformly distributed on the semicircular steel plate 4, and the air resistance of the tail end of the blade when the blade rotates can be further reduced by the vent holes 7.
The utility model discloses when the installation, screw up half circular steel plate 4 through fastening bolt 6 and screw up 5 on the blade crown 2, when using, on the rotor of turbine is fixed to the blade, the blade is at the rotation in-process, the air vent 7 on 4 terminal radians of half circular steel plate and the half circular steel plate 4, can reduce the resistance that the terminal air of blade flows, and simultaneously, the clearance that forms between two half circular steel plate 4 is favorable to the rapid transit of air, has further reduced the air resistance when the blade rotates.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a reducible resistance's steam turbine blade, its structure includes blade body (1), blade shroud (2) and blade root (3), blade shroud (2) with blade root (3) are located respectively both ends, its characterized in that about blade body (1): the structure of the blade crown structure further comprises 2 semicircular steel plates (4), threaded holes (5) which are symmetrical to each other are formed in the two sides of the top end of the blade crown (2), fastening bolts (6) which are symmetrical to each other are arranged at the bottom of each semicircular steel plate (4), the threaded holes (5) correspond to the fastening bolts (6), and the semicircular steel plates (4) are fixed on the two sides of the top of the blade crown (2) through the fastening bolts (6) and the threaded holes (5).
2. The turbine blade according to claim 1 wherein: the blade body (1), the blade shroud (2) and the blade root (3) are all made of stainless steel.
3. The turbine blade according to claim 1 wherein: a plurality of vent holes (7) are uniformly distributed on the semicircular steel plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920148904.7U CN209925032U (en) | 2019-01-29 | 2019-01-29 | Turbine blade capable of reducing resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920148904.7U CN209925032U (en) | 2019-01-29 | 2019-01-29 | Turbine blade capable of reducing resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209925032U true CN209925032U (en) | 2020-01-10 |
Family
ID=69067585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920148904.7U Expired - Fee Related CN209925032U (en) | 2019-01-29 | 2019-01-29 | Turbine blade capable of reducing resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209925032U (en) |
-
2019
- 2019-01-29 CN CN201920148904.7U patent/CN209925032U/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: 20200110 |