CN201496528U - Damping sealing ring - Google Patents
Damping sealing ring Download PDFInfo
- Publication number
- CN201496528U CN201496528U CN2009201045894U CN200920104589U CN201496528U CN 201496528 U CN201496528 U CN 201496528U CN 2009201045894 U CN2009201045894 U CN 2009201045894U CN 200920104589 U CN200920104589 U CN 200920104589U CN 201496528 U CN201496528 U CN 201496528U
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing ring
- seal ring
- ring body
- damping
- 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 Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
A damping sealing ring especially suitable for sealing the shaft ends, stages or segments of a turbine comprises a sealing ring body and round blind holes densely distributed on the sealing surface of the sealing ring. The technical scheme of the utility model also includes that radial guide grooves are uniformly formed on the end surface on the inner side of the sealing ring body. By using the damping sealing ring, a vortex protective layer is formed on the sealing surface, so as to improve the sealing effect, reduce the mechanical vibration and ensure the operating stability of the turbine. As the radial guide grooves formed on the end surface on the inner side of the sealing ring body, working medium can orderly flow at the sealing surface, so as to further improve the sealing effect and the operating stability of the turbine.
Description
Technical field
The utility model relates to seal ring, particularly a kind of damping seal ring that is suitable for turbine engine axle head, inter-stage, intersegmental sealing.
Background technique
Maze-type structure is generally adopted in existing turbine engine axle head, inter-stage, intersegmental sealing.Along with the raising of turbine engine pressure and rotating speed, traditional labyrinth sealing has been difficult to satisfy the service condition of high efficiency turbine engine.
Summary of the invention
The purpose of this utility model is at the problems referred to above, and a kind of damping seal ring that is suitable for high efficiency turbine engine service condition is provided.
The technological scheme that realizes above-mentioned purpose is: a kind of damping seal ring, it includes seal ring body, is densely covered with circular blind hole on the sealing surface of seal ring body.
The diameter of above-mentioned circular blind hole is 3mm-6mm, and the distance between each hole is 0.3mm-0.6mm.
The technical solution of the utility model also comprises: be evenly equipped with radially guiding gutter on the inner side end of seal ring body.
Above-mentioned guiding gutter is the rectangular cross-section.
The beneficial effects of the utility model are: can make sealing surface form the eddy current protective layer, thereby improve sealing effect, reduce mechanical vibration, guarantee the stability of turbine engine operation.
The utility model can make working medium form in order in sealing part and flow by radially guiding gutter is set on the inner side end of seal ring body, thereby further improves the stability of sealing effect and turbine engine operation.
Description of drawings
Fig. 1 is this damping seal ring master sectional view;
Fig. 2 is the end view of this damping seal ring.
Embodiment
In conjunction with the accompanying drawings embodiment of the present utility model is described.
As accompanying drawing, this damping seal ring includes seal ring body 1, is densely covered with circular blind hole 2 by regularly arranged on the ring sealing surface in seal ring body 1, and the diameter of this circle blind hole 2 is 4mm, and the distance between each hole is 0.5mm.Be evenly equipped with radially guiding gutter 3 on the inner side end of seal ring body 1, the grooved of this guiding gutter 3 is the rectangular cross-section.
The utility model can be arranged to the integral sealing ring or split is combined into ring structure, and radially make a concession the hole end face axial assembling attachment hole being set on the seal ring or on outer ring surface, being provided with as required, to adapt to the matching requirements of axle head, inter-stage, intersegmental different sealing.
Claims (4)
1. a damping seal ring includes seal ring body (1), it is characterized in that: be densely covered with circular blind hole (2) on the sealing surface of seal ring body (1).
2. damping seal ring according to claim 1 is characterized in that: the diameter of described circular blind hole (2) is 3mm-6mm, and the distance between each hole is 0.3mm-0.6mm.
3. damping seal ring according to claim 1 is characterized in that: be evenly equipped with radially guiding gutter (3) on the inner side end of seal ring body (1).
4. damping seal ring according to claim 1 is characterized in that: described guiding gutter (3) is the rectangular cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201045894U CN201496528U (en) | 2009-09-16 | 2009-09-16 | Damping sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201045894U CN201496528U (en) | 2009-09-16 | 2009-09-16 | Damping sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496528U true CN201496528U (en) | 2010-06-02 |
Family
ID=42439735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201045894U Expired - Fee Related CN201496528U (en) | 2009-09-16 | 2009-09-16 | Damping sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496528U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200140A (en) * | 2011-06-30 | 2011-09-28 | 兖矿鲁南化肥厂 | Centrifugal compressor provided with damping seal |
-
2009
- 2009-09-16 CN CN2009201045894U patent/CN201496528U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200140A (en) * | 2011-06-30 | 2011-09-28 | 兖矿鲁南化肥厂 | Centrifugal compressor provided with damping seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20110916 |