CN209539463U - A kind of turbine rotor wheel rim seal structure - Google Patents
A kind of turbine rotor wheel rim seal structure Download PDFInfo
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- CN209539463U CN209539463U CN201920295854.5U CN201920295854U CN209539463U CN 209539463 U CN209539463 U CN 209539463U CN 201920295854 U CN201920295854 U CN 201920295854U CN 209539463 U CN209539463 U CN 209539463U
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- turbine rotor
- main body
- exhaust passage
- turbine
- disk chamber
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Abstract
The utility model discloses a kind of turbine rotor wheel rim seal structures, it includes turbine rotor, stator elements, there is a turbine disk chamber in the wheel side surface of turbine rotor, stator elements include the air exhauster and transmission main body with exhaust passage, the arrival end of exhaust passage and the end clearance of wheel disc cooperate, and are connected to exhaust passage with turbine disk chamber；Air exhauster be ring structure and it is relatively fixed ground be sheathed on transmission main body one end outside, turbine rotor pass through drive mandrel be driven main body connect；Wherein, turbine disk chamber is communicated with the atmosphere by an inlet channel, and exhaust passage arrival end caliber size is less than Vent passageway end caliber size.The utility model is by being connected to atmosphere for turbine disk chamber, the effect of injection negative pressure is generated at the wall surface of exhaust passage arrival end using high-temperature fuel gas, cold air in auto-pumping atmosphere is completed disk chamber and is obturaged, the bleed after compressor is saved in this way, so that the air of compressor is all participated in burning, achievees the purpose that improve overall efficiency.
Description
Technical field
The utility model relates to aero gas turbine engine technical fields more particularly to a kind of for turbogenerator
Turbine rotor wheel rim seal structure.
Background technique
Turbine rotor is generally made of blade and wheel disc.Blade bears high-temperature high-pressure fuel gas impact, drives turbine rotor rotation
Turn, output power.Wheel disc undertakes the centrifugal load of blade and itself, works at the same time in hot environment, temperature load is big.To prevent
High-temperature fuel gas contacts the turbine disk, reduces the temperature load of the turbine disk, conventionally employed to obturage system.Tradition obturages specifically doing for system
Method is to draw one high pressure cold after compressor to enter chamber (turbine disk chamber) where wheel side surface, and pressure of compressed air is higher than turbine mainstream
Gaseous-pressure inside road, flow direction is the exhaust sprue that high-temperature high-pressure fuel gas is flowed to from turbine disk chamber, to realize whirlpool
Wheel disc chamber is cooling and the purpose obturaged.But this scheme draws the partial air of the air after compressor, and the air of extraction disappears
The function for having consumed turbine sending, is but not engaged in burning, can not do work, reduce overall efficiency.
Utility model content
The purpose of the utility model is to provide a kind of turbine rotor wheel rim seal structures, to solve technology in the prior art
Problem.
To achieve the above object, the technical solution of the utility model is:
A kind of turbine rotor wheel rim seal structure of the utility model comprising turbine rotor, stator elements, the turbine turn
There is a turbine disk chamber, the stator elements include the air exhauster and transmission main body with exhaust passage, institute in the wheel side surface of son
The end clearance of the arrival end and the wheel disc of stating exhaust passage cooperates, and is connected to the exhaust passage with the turbine disk chamber；
The air exhauster be ring structure and it is relatively fixed be sheathed on transmission main body one end outside, the turbine rotor passes through
Drive mandrel is connect with the transmission main body；Wherein, the turbine disk chamber is communicated with the atmosphere by an inlet channel, the exhaust
Channel inlet port diameter size is less than Vent passageway end caliber size.
Further improvement lies in that the inlet channel is set between the air exhauster and transmission main body, by the exhaust
Gap between machine and the transmission main body is formed.
Further improvement lies in that being equipped with heat shield between the air exhauster and the transmission main body.
Further improvement lies in that the heat shield is circular cowling made of heat insulation foam, the casket of shape and the air exhauster
Liner matches.
Due to using above technical scheme, make it have following beneficial effect is the utility model:
Compared with prior art, for the utility model by the way that turbine disk chamber is connected to atmosphere, high-temperature fuel gas is quickly logical from exhaust
When road flows out, the effect that injection negative pressure is generated at the wall surface of arrival end is caused using the exhaust velocity of high-temperature fuel gas in an exhaust gas
It answers, makes the intracavitary generation negative pressure of the turbine disk, the cold air in turbine disk chamber auto-pumping atmosphere is completed disk chamber and obturaged, and saves in this way
The bleed after compressor makes the air of compressor all participate in burning, achievees the purpose that improve overall efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of turbine rotor wheel rim seal structure of the utility model；
Fig. 2 is A partial enlargement diagram in Fig. 1；
Fig. 3 is B partial enlargement diagram in Fig. 1.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1 to Figure 3, the utility model provides a kind of turbine rotor wheel rim for turbogenerator and obturages knot
Structure comprising turbine rotor 1, stator elements 2 have a turbine disk chamber 11 in the wheel side surface of the turbine rotor 1；The stator
Part 2 includes the air exhauster 21 and transmission main body 22 with exhaust passage 210, the arrival end and the wheel of the exhaust passage 210
The end clearance of disk cooperates, referring to shown in Fig. 2, between 211 end of casket liner of the arrival end of exhaust passage 210 and the wheel disc
With gap 31, gap 31 is connected to 210 arrival end of exhaust passage with the turbine disk chamber 11；The turbine rotor 1 is logical
Drive mandrel 23 is crossed to connect with the transmission main body 22；Wherein, the turbine disk chamber 11 is connected by an inlet channel 20 with atmosphere
Logical, the arrival end caliber size of the exhaust passage 210 is less than the outlet end caliber size of the exhaust passage 210.
Specifically, referring to shown in Fig. 2, there is seam between the casket liner 211 and transmission main body 22 of 20 end of inlet channel
Turbine disk chamber 11 is communicated with the atmosphere for gap 32, gap 32.
In the present embodiment, the air exhauster 21 is ring structure and relatively fixed is sheathed on the transmission main body 22 1
The outside at end.
Specifically, the inlet channel 20 is set between the air exhauster 21 and transmission main body 22, by the air exhauster
Gap between 21 and the transmission main body 22 is formed.
As a priority scheme of the utility model, further improvement lies in that, the air exhauster 21 is led with the transmission
Heat shield 24 is equipped between body 22；Preferably, the heat shield 24 is circular cowling made of heat insulation foam, shape and the exhaust
The casket liner 211 of machine 21 matches.
Compared with prior art, for the utility model by the way that turbine disk chamber is connected to atmosphere, high-temperature fuel gas is quickly logical from exhaust
When road flows out, the effect that injection negative pressure is generated at the wall surface of arrival end is caused using the exhaust velocity of high-temperature fuel gas in an exhaust gas
It answers, makes the intracavitary generation negative pressure of the turbine disk, the cold air in turbine disk chamber auto-pumping atmosphere is completed disk chamber and obturaged, and saves in this way
The bleed after compressor makes the air of compressor all participate in burning, achievees the purpose that improve overall efficiency.
It should be appreciated that the regular job habit and Figure of description of the noun of locality is binding operation person and user and set
Vertical, their appearance should not influence the protection scope of the utility model.
Combine figure embodiment that the utility model is described in detail above, those skilled in the art can root
Many variations example is made to the utility model according to above description.Thus, certain details in embodiment should not constitute practical to this
Novel restriction, the utility model will be using the ranges that the appended claims define as the protection scope of the utility model.
Claims (4)
1. a kind of turbine rotor wheel rim seal structure comprising turbine rotor, stator elements, in the wheel side surface of the turbine rotor
With a turbine disk chamber, the stator elements include that there is the air exhauster of exhaust passage and transmission main body, the exhaust passage to enter
Mouth end and the end clearance of the wheel disc cooperate, and are connected to the exhaust passage with the turbine disk chamber；The air exhauster is ring
Shape structure and it is relatively fixed be sheathed on the outside of described transmission main body one end, the turbine rotor by drive mandrel with it is described
It is driven main body connection；It is characterized in that, the turbine disk chamber is communicated with the atmosphere by an inlet channel, the exhaust passage entrance
Caliber size is held to be less than Vent passageway end caliber size.
2. turbine rotor wheel rim seal structure according to claim 1, which is characterized in that the inlet channel is set to institute
It states between air exhauster and transmission main body, is formed by the gap between the air exhauster and the transmission main body.
3. turbine rotor wheel rim seal structure according to claim 1 or 2, which is characterized in that the air exhauster with it is described
It is driven between main body and is equipped with heat shield.
4. turbine rotor wheel rim seal structure according to claim 3, which is characterized in that the heat shield is heat insulation foam system
At circular cowling, shape matches with the casket liner of the air exhauster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920295854.5U CN209539463U (en) | 2019-03-08 | 2019-03-08 | A kind of turbine rotor wheel rim seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920295854.5U CN209539463U (en) | 2019-03-08 | 2019-03-08 | A kind of turbine rotor wheel rim seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209539463U true CN209539463U (en) | 2019-10-25 |
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ID=68274890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920295854.5U Active CN209539463U (en) | 2019-03-08 | 2019-03-08 | A kind of turbine rotor wheel rim seal structure |
Country Status (1)
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| CN (1) | CN209539463U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110750845A (en) * | 2019-11-13 | 2020-02-04 | 中国科学院工程热物理研究所 | Method for improving sealing efficiency of disc cavity based on end wall rough area |
| CN114278385A (en) * | 2021-12-16 | 2022-04-05 | 北京航空航天大学 | Novel turbine disc cavity heat insulation structure with heat shield and air interlayer |
| CN114856719A (en) * | 2022-04-18 | 2022-08-05 | 中国航发沈阳发动机研究所 | Universal air system, structure and control method for turbine rotor test |
-
2019
- 2019-03-08 CN CN201920295854.5U patent/CN209539463U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110750845A (en) * | 2019-11-13 | 2020-02-04 | 中国科学院工程热物理研究所 | Method for improving sealing efficiency of disc cavity based on end wall rough area |
| CN110750845B (en) * | 2019-11-13 | 2024-04-05 | 中国科学院工程热物理研究所 | Method for improving sealing efficiency of disc cavity based on end wall rough area |
| CN114278385A (en) * | 2021-12-16 | 2022-04-05 | 北京航空航天大学 | Novel turbine disc cavity heat insulation structure with heat shield and air interlayer |
| CN114856719A (en) * | 2022-04-18 | 2022-08-05 | 中国航发沈阳发动机研究所 | Universal air system, structure and control method for turbine rotor test |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201611 3 3 Ting Ting Road, Che Dun Town, Songjiang District, Shanghai Patentee after: Shanghai Shangshi aeroengine Co.,Ltd. Address before: 201611 3 3 Ting Ting Road, Che Dun Town, Songjiang District, Shanghai Patentee before: SHANGHAI SHANGSHI ENERGY TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |