CN110847975A - Steam turbine rotor structure - Google Patents
Steam turbine rotor structure Download PDFInfo
- Publication number
- CN110847975A CN110847975A CN201911338963.1A CN201911338963A CN110847975A CN 110847975 A CN110847975 A CN 110847975A CN 201911338963 A CN201911338963 A CN 201911338963A CN 110847975 A CN110847975 A CN 110847975A
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- China
- Prior art keywords
- impeller
- rotor
- steam turbine
- bearing
- turbine rotor
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a steam turbine rotor structure, which comprises a rotor impeller, a rotor rotating shaft and a bearing, wherein the rotor impeller is arranged at one side end part of the rotor rotating shaft to form a cantilever type structure, the bearing is positioned at the inner side of the rotor impeller, and the rotor impeller comprises a group of blades which are used for adopting circumferential air inlet and are obliquely and uniformly distributed along the circumferential direction. This steam turbine rotor structural design is reasonable, and the impeller is fixed and is formed the cantilever type structure at one side tip of pivot, and the impeller adopts the circumference form of admitting air, and its compact structure, occupation space is little, is convenient for arrange the installation to efficiency is higher.
Description
Technical Field
The invention relates to the technical field of steam turbines, in particular to a cantilever type steam turbine rotor structure with circumferential air inlet.
Background
The current axial-flow steam turbine rotor structure adopts the beam structure more, and the bearing that supports the rotor promptly is located the both ends of rotor respectively, and the last impeller of steam turbine rotor is located between two bearings, advances between two bearings and promotes the impeller, and its structure is not compact, and occupation space is big, and efficiency is not high.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide a steam turbine rotor structure so as to achieve the purposes of compact structure and higher efficiency.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
this steam turbine rotor structure, including rotor wheel and rotor shaft and bearing, rotor wheel establishes and forms cantilever type structure at rotor shaft one side tip, and the bearing is located rotor wheel's inboard, rotor wheel is including the a set of blade that is used for adopting the edge circumference slope equipartition that circumference admits air.
Furthermore, a gear for outputting power outwards is arranged on the rotor rotating shaft, and the gear and the bearing are located on the same side of the rotor impeller.
And the end part of the other side of the rotor rotating shaft is provided with a coupler, and the coupler and the bearing are positioned on the same side of the rotor impeller.
The bearing comprises two or more bearings arranged side by side.
The inlet air in the steam turbine enters between the adjacent blades along the outer circle end of the maximum radius of the impeller to form an impeller flow channel.
The rotor impeller comprises an impeller body and a group of blades arranged on the impeller body, the impeller body is of a disc structure, one side of the impeller body is connected with the end part of a rotor rotating shaft, and the blades are arranged on the other side of the impeller body.
The bearing is a radial bearing and/or a thrust bearing.
In the steam turbine, the steam enters the impeller along the rotation circumferential direction of the impeller and forms a certain angle with the tangent line of the outer edge of the impeller, and the angle range is 3-45 degrees.
And an impeller flow channel is formed between adjacent blades on the impeller body, and the impeller flow channel inclines to the other side of the impeller body from the outer edge to the center of the impeller body.
Compared with the prior art, the invention has the following advantages: this steam turbine rotor structural design is reasonable, and the impeller is fixed and is formed the cantilever type structure at one side tip of pivot, and the impeller adopts the circumference form of admitting air, and its compact structure, occupation space is little, is convenient for arrange the installation to efficiency is higher.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic view of a rotor structure according to the present invention.
Fig. 2 is a schematic view of a rotor structure according to the present invention.
FIG. 3 is a schematic view of the circumferential air intake of the present invention.
In the figure:
1. rotor impeller, 2. rotor rotating shaft, 3. gear, 4. bearing, 5. shaft coupling.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the cantilever type turbine rotor structure with circumferential air intake comprises a rotor impeller 1, a rotor rotating shaft 2 and a bearing 4, wherein the rotor impeller is arranged at one side end of the rotor rotating shaft to form a cantilever type structure, the bearing is arranged at the inner side of the rotor impeller, and the rotor impeller comprises a group of blades which are used for circumferential air intake and are obliquely and uniformly distributed along the circumferential direction.
The impeller is fixed at one side end of the rotating shaft to form a cantilever type structure, other parts connected with the rotating shaft of the rotor are all positioned at the inner side of the impeller, the impeller is positioned at the outer end part of one side of the rotating shaft, the impeller adopts a circumferential air inlet mode, and the impeller is compact in structure, small in occupied space, convenient to arrange and install and higher in efficiency.
The rotor rotating shaft 2 is provided with a gear 3 used for outputting power outwards, the end of the other end of the rotor rotating shaft is provided with a coupler 5 used for being connected with a main shaft of a generator set rotor, the gear 3, a bearing 4 and the coupler 5 are all located on the same side of a rotor impeller, the impeller is arranged in a cantilever type mode, and the structure is compact.
The bearings comprise two or more bearings arranged side by side; the bearings are radial bearings and/or thrust bearings.
The rotor impeller 1 comprises an impeller body and a group of blades arranged on the impeller body, the impeller body is of a disc structure, one side of the impeller body is connected with the end part of a rotor rotating shaft, and the blades are arranged on the other side of the impeller body; that is, other parts connected with the rotating shaft are positioned on the inner side of the impeller body, and a group of blades are positioned on the outer side of the impeller body.
In the steam turbine, inlet air enters between adjacent blades along the outer circle end of the maximum radius of the impeller to form an impeller flow channel. In the steam turbine, the steam enters the impeller along the rotation circumferential direction of the impeller and forms a certain angle with the tangent line of the outer edge of the impeller, the angle range is 3-45 degrees, and the efficiency is higher.
The outer side of the impeller body is of a conical structure, a group of blades are uniformly arranged on the conical surface, an impeller flow channel is formed between every two adjacent blades on the impeller body, and the impeller flow channel inclines to the other side of the impeller body from the outer edge to the center of the impeller body.
When the rotor works, steam entering from the outer edge of the impeller pushes the blades to drive the rotor to rotate to output power, the entering steam is inclined outwards and flows out from the central cone tip of the impeller body, the outflow is smooth, and the working efficiency of the rotor is higher; and the steam flows out, and the working stability is good.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (9)
1. The utility model provides a steam turbine rotor structure, includes rotor wheel and rotor pivot and bearing, its characterized in that: rotor wheel establishes and forms cantilever type structure in rotor shaft one side tip, and the bearing is located rotor wheel's inboard, rotor wheel is including the a set of blade that is used for adopting the edge circumference slope equipartition that circumference admitted air.
2. The steam turbine rotor structure of claim 1, wherein: and a gear for outputting power outwards is arranged on the rotor rotating shaft, and the gear and the bearing are positioned on the same side of the rotor impeller.
3. The steam turbine rotor structure according to claim 1 or 2, wherein: and the end part of the other side of the rotor rotating shaft is provided with a coupler, and the coupler and the bearing are positioned on the same side of the rotor impeller.
4. The steam turbine rotor structure of claim 1, wherein: the bearing comprises two or more bearings arranged side by side.
5. The steam turbine rotor structure of claim 1, wherein: the inlet air in the steam turbine enters between the adjacent blades along the outer circle end of the maximum radius of the impeller to form an impeller flow channel.
6. The steam turbine rotor structure of claim 1, wherein: the rotor impeller comprises an impeller body and a group of blades arranged on the impeller body, the impeller body is of a disc structure, one side of the impeller body is connected with the end part of a rotor rotating shaft, and the blades are arranged on the other side of the impeller body.
7. The steam turbine rotor structure of claim 4, wherein: the bearing is a radial bearing and/or a thrust bearing.
8. The steam turbine rotor structure according to claim 1 or 5, wherein: in the steam turbine, the steam enters the impeller along the rotation circumferential direction of the impeller and forms a certain angle with the tangent line of the outer edge of the impeller, and the angle range is 3-45 degrees.
9. The steam turbine rotor structure of claim 6, wherein: and an impeller flow channel is formed between adjacent blades on the impeller body, and the impeller flow channel inclines to the other side of the impeller body from the outer edge to the center of the impeller body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338963.1A CN110847975A (en) | 2019-12-23 | 2019-12-23 | Steam turbine rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338963.1A CN110847975A (en) | 2019-12-23 | 2019-12-23 | Steam turbine rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110847975A true CN110847975A (en) | 2020-02-28 |
Family
ID=69610388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911338963.1A Pending CN110847975A (en) | 2019-12-23 | 2019-12-23 | Steam turbine rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110847975A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020155009A1 (en) * | 2001-04-24 | 2002-10-24 | Panos Jean B. | High thrust turbocharger rotor with ball bearings |
| CN201144714Y (en) * | 2008-01-09 | 2008-11-05 | 成都发动机（集团）有限公司 | Disc draft type capacity-adjustable TRT |
| CN102434217A (en) * | 2011-11-01 | 2012-05-02 | 哈尔滨东安发动机（集团）有限公司 | Integrated cantilever rotor structure |
| CN107780974A (en) * | 2017-10-31 | 2018-03-09 | 安徽新宁装备股份有限公司 | A kind of turbine rotor |
| CN211008770U (en) * | 2019-12-23 | 2020-07-14 | 安徽新宁能源科技有限公司 | Steam turbine rotor structure |
-
2019
- 2019-12-23 CN CN201911338963.1A patent/CN110847975A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020155009A1 (en) * | 2001-04-24 | 2002-10-24 | Panos Jean B. | High thrust turbocharger rotor with ball bearings |
| CN201144714Y (en) * | 2008-01-09 | 2008-11-05 | 成都发动机（集团）有限公司 | Disc draft type capacity-adjustable TRT |
| CN102434217A (en) * | 2011-11-01 | 2012-05-02 | 哈尔滨东安发动机（集团）有限公司 | Integrated cantilever rotor structure |
| CN107780974A (en) * | 2017-10-31 | 2018-03-09 | 安徽新宁装备股份有限公司 | A kind of turbine rotor |
| CN211008770U (en) * | 2019-12-23 | 2020-07-14 | 安徽新宁能源科技有限公司 | Steam turbine rotor structure |
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