CN214577213U - High-efficiency erosion-resistant frequency-adjustable twisted blade of steam turbine - Google Patents
High-efficiency erosion-resistant frequency-adjustable twisted blade of steam turbine Download PDFInfo
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- CN214577213U CN214577213U CN202120675020.4U CN202120675020U CN214577213U CN 214577213 U CN214577213 U CN 214577213U CN 202120675020 U CN202120675020 U CN 202120675020U CN 214577213 U CN214577213 U CN 214577213U
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Abstract
The utility model discloses a leaf is turned round to resistant erosion adjustable frequency of steam turbine high efficiency belongs to steam turbine technical field, and it is including turning round the leaf body, the bottom of turning round the leaf body is connected with the last fixed surface of second connecting plate, the below of second connecting plate is provided with the rubber pad, the below of rubber pad is provided with first connecting plate, the upper surface of second connecting plate is provided with a plurality of fastening bolt. This leaf is turned round to resistant erosion adjustable frequency of steam turbine high efficiency, through being provided with vertical strengthening rib and horizontal strengthening rib, strengthen turning round the leaf body, can improve the anti stamping strength who turns round leaf body surface, thereby the normal life of this leaf of turning round has been guaranteed, through being provided with the reinforcing plate, utilize the reinforcing plate to connect plectane and the further fixed of first connecting plate, because the shape of reinforcing plate is triangle-shaped, thereby the torsional strength of connecting plectane and first connecting plate junction has been improved, avoid connecting plectane and first connecting plate junction to take place the fracture.
Description
Technical Field
The utility model belongs to the technical field of the steam turbine, specifically be the resistant erosion of steam turbine high efficiency can turn round the leaf with frequency.
Background
The turbine rotor blade is an important component which is installed on a turbine rotor and generates torque under the action of high-temperature and high-pressure steam to enable the turbine rotor to rotate at a high speed. However, the steam turbine blade is easy to break due to large impact force, so that the service life is short, the joint of the blade and the first connecting plate is fragile, and the joint of the blade and the first connecting plate may be damaged due to torsion generated under high-speed rotation.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome prior art's above-mentioned defect, the utility model provides a leaf is turned round to resistant erosion and modulation of steam turbine high efficiency has solved but this kind of steam turbine blade when using owing to the impact force that receives great, and the easy emergence fracture, therefore life is shorter, and the blade is comparatively fragile with the junction of first connecting plate, because can produce torsion under the high-speed rotation, can lead to the blade to take place the problem of damaging with the junction of first connecting plate.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: the high-efficiency erosion-resistant frequency-adjustable torsion blade of the steam turbine comprises a torsion blade body, the bottom end of the torsion blade body is fixedly connected with the upper surface of a second connecting plate, a rubber pad is arranged below the second connecting plate, a first connecting plate is arranged below the rubber pad, a plurality of fastening bolts are arranged on the upper surface of the second connecting plate, the lower surface of the first connecting plate is fixedly connected with the top end of a connecting circular plate, two positioning grooves are formed in the outer surface of the connecting circular plate, and a plurality of reinforcing plates are fixedly connected with the outer surface of the connecting circular plate.
As a further aspect of the present invention: the inner wall of turning round the leaf body is provided with the vertical strengthening rib of a plurality of, the inner wall of turning round the leaf body is provided with the horizontal strengthening rib of a plurality of, the material of vertical strengthening rib and horizontal strengthening rib is titanium alloy.
As a further aspect of the present invention: the top end fixedly connected with shroud ring of turning round the leaf body, the shape of shroud ring is the arc.
As a further aspect of the present invention: the top end of the reinforcing plate is fixedly connected to the lower surface of the first connecting plate, and the reinforcing plate is triangular.
As a further aspect of the present invention: the outer surfaces of the torsion blade body, the connecting circular plate, the second connecting plate, the fastening bolt, the first connecting plate, the reinforcing plate, the vertical reinforcing ribs and the transverse reinforcing ribs are coated with anti-corrosion paint, and the anti-corrosion paint is made of epoxy resin paint.
As a further aspect of the present invention: the fastening bolt comprises gaskets, a positive thread cap, a negative thread cap and a screw rod, wherein the two gaskets are sleeved on the outer surface of the screw rod, the outer surface of the screw rod is in threaded connection with the inner walls of the positive thread cap and the negative thread cap, and the thread directions of the inner walls of the positive thread cap and the negative thread cap are opposite.
(III) advantageous effects
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. this resistant erosion of steam turbine high efficiency can turn round leaf with frequency, through being provided with vertical strengthening rib and horizontal strengthening rib, when this turns round the leaf and is carrying out high-speed rotatory, strengthens turning round the leaf body through vertical strengthening rib and horizontal strengthening rib, can improve and turn round the anti punching strength on leaf body surface to this normal life who turns round the leaf has been guaranteed.
2. This resistant erosion of steam turbine high efficiency can turn round leaf frequently, through being provided with the reinforcing plate, utilizes the reinforcing plate to further fix connection plectane and first connecting plate, because the shape of reinforcing plate is triangle-shaped to improve the torsional strength of connection plectane and first connecting plate junction, avoided connection plectane and first connecting plate junction to take place the fracture.
3. This resistant erosion of steam turbine high efficiency can turn round leaf with frequency, through being provided with the anticorrosion lacquer, has all scribbled the anticorrosion lacquer through the surface that will turn round leaf body, connection plectane, first connecting plate, reinforcing plate, vertical strengthening rib and horizontal strengthening rib, utilizes the anticorrosion lacquer to prevent this to turn round the leaf surface and is corroded to guarantee the firm of junction.
4. This leaf is turned round to resistant erosion adjustable frequency of steam turbine high efficiency, through being provided with first connecting plate, fastening bolt and second connecting plate, because the connection plectane is through first connecting plate with turning round the leaf body, fastening bolt and second connecting plate are fixed mutually, can dismantle the leaf body through adjusting fastening bolt when turning round the leaf body and taking place to damage, then will reserve turn round on the leaf body rethread fastening bolt installs first connecting plate can, reduce the waste to the resource, the staff of being convenient for changes the leaf body of turning round.
Drawings
Fig. 1 is a schematic three-dimensional structure of the present invention;
fig. 2 is a schematic structural view of a top view section of the present invention;
FIG. 3 is an enlarged schematic structural view of the connection circular plate of the present invention;
FIG. 4 is a schematic three-dimensional structure of the fastening bolt of the present invention;
in the figure: the novel hinge comprises a hinge body 1, a surrounding belt 2, a connecting circular plate 3, a positioning groove 4, a first connecting plate 5, a reinforcing plate 6, a vertical reinforcing rib 7, a horizontal reinforcing rib 8, anticorrosive paint 9, a fastening bolt 10, a gasket 101, a positive thread cap 102, a negative thread cap 103, a screw 104, a second connecting plate 11 and a rubber pad 12.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
As shown in fig. 1-4, the utility model provides a technical scheme: the high-efficiency erosion-resistant frequency-adjustable twisted blade of the steam turbine comprises a twisted blade body 1, the bottom end of the twisted blade body 1 is fixedly connected with the upper surface of a second connecting plate 11, a rubber pad 12 is arranged below the second connecting plate 11, a first connecting plate 5 is arranged below the rubber pad 12, a plurality of fastening bolts 10 are arranged on the upper surface of the second connecting plate 11, the lower surface of the first connecting plate 5 is fixedly connected with the top end of a connecting circular plate 3, two positioning grooves 4 are arranged on the outer surface of the connecting circular plate 3, a plurality of reinforcing plates 6 are fixedly connected with the outer surface of the connecting circular plate 3, the reinforcing plates 6 are arranged to further fix the first connecting plate 5 and the connecting circular plate 3, a plurality of vertical reinforcing ribs 7 are arranged on the inner wall of the twisted blade body 1, a plurality of transverse reinforcing ribs 8 are arranged on the inner wall of the twisted blade body 1, the vertical reinforcing ribs 7 and the transverse reinforcing ribs 8 are made of titanium alloy, through being provided with vertical strengthening rib 7 and horizontal strengthening rib 8, when this turn round the leaf and when carrying out high-speed rotation, through vertical strengthening rib 7 and horizontal strengthening rib 8 to the enhancement of turning round leaf body 1, can improve and turn round the anti punching strength that 1 surface of leaf body received to this normal life who turns round the leaf has been guaranteed.
Specifically, as shown in fig. 1, the top end of the twisting blade body 1 is fixedly connected with the shroud ring 2, the shroud ring 2 is arc-shaped, the top end of the reinforcing plate 6 is fixedly connected to the lower surface of the first connecting plate 5, the reinforcing plate 6 is triangular, and the reinforcing plate 6 is triangular, so that the torsional strength of the joint of the first connecting plate 5 and the connecting circular plate 3 is improved, and the joint of the first connecting plate 5 and the connecting circular plate 3 is prevented from being broken.
Specifically, as shown in fig. 2, the outer surfaces of the twisted blade body 1, the connecting circular plate 3, the second connecting plate 11, the fastening bolt 10, the first connecting plate 5, the reinforcing plate 6, the vertical reinforcing rib 7 and the horizontal reinforcing rib 8 are coated with anti-corrosion paint 9, the anti-corrosion paint 9 is made of epoxy resin, the outer surfaces of the twisted blade body 1, the connecting circular plate 3, the second connecting plate 11, the fastening bolt 10, the first connecting plate 5, the reinforcing plate 6, the vertical reinforcing rib 7 and the horizontal reinforcing rib 8 are coated with the anti-corrosion paint 9 by setting the anti-corrosion paint 9, the outer surface of the twisted blade is prevented from being corroded by the anti-corrosion paint 9, so as to ensure the firmness of the connection position, the fastening bolt 10 comprises a gasket 101, a positive thread cap 102, a negative thread cap 103 and a screw 104, the outer surface of the screw 104 is sleeved with two gaskets 101, the outer surface of the screw 104 is in threaded connection with the inner walls of the positive thread cap 102 and the negative thread cap 103, the screw thread opposite direction of positive thread cap 102 and reverse thread cap 103 inner wall, because connection plectane 3 is through first connecting plate 5 with turning round leaf body 1, fastening bolt 10 and second connecting plate 11 are fixed mutually, can dismantle turning round leaf body 1 through adjusting fastening bolt 10 when turning round leaf body 1 and taking place to damage, then will reserve turn round leaf body 1 rethread fastening bolt 10 install on first connecting plate 5 can, reduce the waste to the resource, the staff of being convenient for changes turning round leaf body 1.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (6)
1. The anti erosion adjustable frequency of steam turbine high efficiency twists the leaf, including twisting leaf body (1), its characterized in that: the bottom of turning round leaf body (1) is connected with the last fixed surface of second connecting plate (11), the below of second connecting plate (11) is provided with rubber pad (12), the below of rubber pad (12) is provided with first connecting plate (5), the upper surface of second connecting plate (11) is provided with a plurality of fastening bolt (10), the lower surface of first connecting plate (5) and the top fixed connection of connecting plectane (3), two constant head tanks (4) have been seted up to the surface of connecting plectane (3), the outer fixed surface of connecting plectane (3) is connected with a plurality of reinforcing plate (6).
2. The high efficiency erosion resistant frequency modulated twisted blade of a steam turbine according to claim 1, wherein: the inner wall of turning round leaf body (1) is provided with vertical strengthening rib (7) of a plurality of, the inner wall of turning round leaf body (1) is provided with horizontal strengthening rib (8) of a plurality of, the material of vertical strengthening rib (7) and horizontal strengthening rib (8) is the titanium alloy.
3. The high efficiency erosion resistant frequency modulated twisted blade of a steam turbine according to claim 1, wherein: the top end fixedly connected with shroud ring (2) of turning round leaf body (1), the shape of shroud ring (2) is the arc.
4. The high efficiency erosion resistant frequency modulated twisted blade of a steam turbine according to claim 1, wherein: the top end of the reinforcing plate (6) is fixedly connected to the lower surface of the first connecting plate (5), and the reinforcing plate (6) is triangular.
5. The high efficiency erosion resistant frequency modulated twisted blade of a steam turbine according to claim 1, wherein: the outer surfaces of the twisted blade body (1), the connecting circular plate (3), the second connecting plate (11), the fastening bolt (10), the first connecting plate (5), the reinforcing plate (6), the vertical reinforcing ribs (7) and the transverse reinforcing ribs (8) are coated with anti-corrosion paint (9), and the anti-corrosion paint (9) is made of epoxy resin paint.
6. The high efficiency erosion resistant variable frequency twisted blade of a steam turbine according to claim 5, wherein: the fastening bolt (10) comprises gaskets (101), a positive thread cap (102), a negative thread cap (103) and a screw (104), wherein the two gaskets (101) are sleeved on the outer surface of the screw (104), the outer surface of the screw (104) is in threaded connection with the inner walls of the positive thread cap (102) and the negative thread cap (103), and the thread directions of the inner walls of the positive thread cap (102) and the negative thread cap (103) are opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120675020.4U CN214577213U (en) | 2021-04-02 | 2021-04-02 | High-efficiency erosion-resistant frequency-adjustable twisted blade of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120675020.4U CN214577213U (en) | 2021-04-02 | 2021-04-02 | High-efficiency erosion-resistant frequency-adjustable twisted blade of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214577213U true CN214577213U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120675020.4U Active CN214577213U (en) | 2021-04-02 | 2021-04-02 | High-efficiency erosion-resistant frequency-adjustable twisted blade of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214577213U (en) |
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2021
- 2021-04-02 CN CN202120675020.4U patent/CN214577213U/en active Active
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