CN211008770U - Steam turbine rotor structure - Google Patents
Steam turbine rotor structure Download PDFInfo
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- CN211008770U CN211008770U CN201922329630.4U CN201922329630U CN211008770U CN 211008770 U CN211008770 U CN 211008770U CN 201922329630 U CN201922329630 U CN 201922329630U CN 211008770 U CN211008770 U CN 211008770U
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- steam turbine
- bearing
- turbine rotor
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Abstract
The utility model discloses a steam turbine rotor structure, including rotor wheel and rotor shaft and bearing, rotor wheel establishes and forms cantilever type structure at a rotor shaft side end, and the bearing is located rotor wheel's inboard, rotor wheel is including the a set of blade that is used for adopting circumference to admit air along circumference slope equipartition. 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 utility model belongs to the technical field of the steam turbine technique and specifically relates to a steam turbine rotor structure that cantilever type circumference was admitted air is related to.
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.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to solve the technical problem that a steam turbine rotor structure is provided to reach compact structure, the higher purpose of efficiency.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
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 utility model, have following advantage: 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 the rotor structure of the present invention.
Fig. 2 is a schematic view of the rotor structure of the present invention.
Fig. 3 is a schematic view of 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 is only for the description of the preferred embodiments of the present invention, and the above-mentioned technical features can be combined at will to form a plurality of embodiments of the present invention.
The present invention has been described in detail with reference to the accompanying drawings, and it is apparent that the present invention is not limited by the above embodiments, and various insubstantial improvements can be made without modification to the present invention.
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 |
|---|---|---|---|
| CN201922329630.4U CN211008770U (en) | 2019-12-23 | 2019-12-23 | Steam turbine rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922329630.4U CN211008770U (en) | 2019-12-23 | 2019-12-23 | Steam turbine rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211008770U true CN211008770U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922329630.4U Active CN211008770U (en) | 2019-12-23 | 2019-12-23 | Steam turbine rotor structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN211008770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847975A (en) * | 2019-12-23 | 2020-02-28 | 安徽新宁能源科技有限公司 | Steam turbine rotor structure |
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2019
- 2019-12-23 CN CN201922329630.4U patent/CN211008770U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847975A (en) * | 2019-12-23 | 2020-02-28 | 安徽新宁能源科技有限公司 | Steam turbine rotor structure |
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