CN202483638U - Finger seal type boot structure - Google Patents
Finger seal type boot structure Download PDFInfo
- Publication number
- CN202483638U CN202483638U CN 201220111389 CN201220111389U CN202483638U CN 202483638 U CN202483638 U CN 202483638U CN 201220111389 CN201220111389 CN 201220111389 CN 201220111389 U CN201220111389 U CN 201220111389U CN 202483638 U CN202483638 U CN 202483638U
- Authority
- CN
- China
- Prior art keywords
- finger tip
- finger
- rotor
- boots
- boot
- 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.)
- Expired - Fee Related
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- Sealing Devices (AREA)
Abstract
The utility model provides a finger seal type boot structure, which is characterized by comprising a finger boot, a finger boot part bottom end and a rotor, wherein the finger boot part bottom end on the finger boot is contacted with the surface of the rotor; an included angle between the surface of the finger boot part bottom end and the surface of the rotor is 0.1-5 degrees; the thickness of the single finger boot is 0.1-0.5mm; and the finger boot is in a wedged structure. The finger seal type boot structure provided by the utility model has the advantages that a clearance between the finger boot and the rotor under the interference fit is reduced, so that the leakage is reduced, and the sealing effect is ensured.
Description
Technical field
The utility model relates to the air flow path field of sealing technology of gas turbine, particularly a kind of finger tip seal shoe bilge construction.
Background technique
The finger tip sealing is a kind of novel sealing technique; Cooperate in order to form with rotor, traditional finger tip seal shoe portion bottom is the circular arc design, when forming interference fit with rotor; Owing to inconsistent finger tip boots and the rotor of causing of distortion before and after the finger tip boots portion forms excessive gap; Magnitude of interference is big more, and the gap is just big more, thereby has increased leakage.
The model utility content
The purpose of the utility model is in order to ensure sealing effect, avoids revealing, and the spy provides a kind of finger tip seal shoe bilge construction.
The utility model provides a kind of finger tip seal shoe bilge construction, it is characterized in that: described finger tip seal shoe bilge construction comprises finger tip boots 1, finger tip boots portion bottom 2, rotor 3;
Wherein: the finger tip boots portion bottom 2 on the finger tip boots 1 contacts with the surface of rotor 3, and the included angle A between the surface of finger tip boots portion bottom 2 and the surface of rotor 3 is 0.1 °-5 °.
The thickness of described monolithic finger tip boots 1 is 0.1～0.5mm.
Described finger tip boots 1 are wedge-shaped structure.
The advantage of the utility model:
The described finger tip seal shoe of the utility model bilge construction has reduced finger tip boots and gap between rotor under the interference fit, thereby has reduced leakage, guarantees sealing effect.
Description of drawings
Below in conjunction with accompanying drawing and mode of execution the utility model is done further detailed explanation:
Fig. 1 is a finger tip seal shoe bilge construction schematic representation;
Fig. 2 is a finger tip seal shoe portion integral installation schematic representation.
Embodiment
Present embodiment provides a kind of finger tip seal shoe bilge construction, it is characterized in that: described finger tip seal shoe bilge construction comprises finger tip boots 1, finger tip boots portion bottom 2, rotor 3;
Wherein: the finger tip boots portion bottom 2 on the finger tip boots 1 contacts with the surface of rotor 3, and the included angle A between the surface of finger tip boots portion bottom 2 and the surface of rotor 3 is 0.1.
The thickness of described monolithic finger tip boots 1 is 0.1mm.
Described finger tip boots 1 are wedge-shaped structure.
Present embodiment provides a kind of finger tip seal shoe bilge construction, it is characterized in that: described finger tip seal shoe bilge construction comprises finger tip boots 1, finger tip boots portion bottom 2, rotor 3;
Wherein: the finger tip boots portion bottom 2 on the finger tip boots 1 contacts with the surface of rotor 3, and the included angle A between the surface of finger tip boots portion bottom 2 and the surface of rotor 3 is 3 °.
The thickness of described monolithic finger tip boots 1 is 0.3mm.
Described finger tip boots 1 are wedge-shaped structure.
Present embodiment provides a kind of finger tip seal shoe bilge construction, it is characterized in that: described finger tip seal shoe bilge construction comprises finger tip boots 1, finger tip boots portion bottom 2, rotor 3;
Wherein: the finger tip boots portion bottom 2 on the finger tip boots 1 contacts with the surface of rotor 3, and the included angle A between the surface of finger tip boots portion bottom 2 and the surface of rotor 3 is 5 °.
The thickness of described monolithic finger tip boots 1 is 0.5mm.
Described finger tip boots 1 are wedge-shaped structure.
Claims (3)
1. finger tip seal shoe bilge construction, it is characterized in that: described finger tip seal shoe bilge construction comprises finger tip boots (1), finger tip boots portion bottom (2), rotor (3);
Wherein: finger tip boots portion bottom (2) on the finger tip boots (1) contacts with the surface of rotor (3), and the angle (A) between the surface of finger tip boots portion bottom (2) and the surface of rotor (3) is 0.1 °-5 °.
2. according to the described finger tip seal shoe of claim 1 bilge construction, it is characterized in that: the thickness of described monolithic finger tip boots (1) is 0.1～0.5mm.
3. according to the described finger tip seal shoe of claim 1 bilge construction, it is characterized in that: described finger tip boots (1) are wedge-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220111389 CN202483638U (en) | 2012-03-22 | 2012-03-22 | Finger seal type boot structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220111389 CN202483638U (en) | 2012-03-22 | 2012-03-22 | Finger seal type boot structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483638U true CN202483638U (en) | 2012-10-10 |
Family
ID=46958065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220111389 Expired - Fee Related CN202483638U (en) | 2012-03-22 | 2012-03-22 | Finger seal type boot structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545375A (en) * | 2015-12-14 | 2016-05-04 | 中国燃气涡轮研究院 | Double-beam finger seal device |
-
2012
- 2012-03-22 CN CN 201220111389 patent/CN202483638U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545375A (en) * | 2015-12-14 | 2016-05-04 | 中国燃气涡轮研究院 | Double-beam finger seal device |
| CN105545375B (en) * | 2015-12-14 | 2017-03-08 | 中国燃气涡轮研究院 | Twin beams finger sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20160322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |