CN207049331U - Folded flexible damps brush sealing ring - Google Patents
Folded flexible damps brush sealing ring Download PDFInfo
- Publication number
- CN207049331U CN207049331U CN201720677571.8U CN201720677571U CN207049331U CN 207049331 U CN207049331 U CN 207049331U CN 201720677571 U CN201720677571 U CN 201720677571U CN 207049331 U CN207049331 U CN 207049331U
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- CN
- China
- Prior art keywords
- front apron
- sealing ring
- brush
- damps
- pleated sheet
- 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.)
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model discloses folded flexible and damps brush sealing ring, including baffle plate, it is characterised in that：The baffle plate is divided into front apron and rear baffle, and brush filament is provided between the front apron and rear baffle, and pleated sheet is provided between the brush filament and front apron, and the pleated sheet is Z-shaped, and its one end is fixed on front apron, and the other end presses close to brush filament；The utility model realizes that internal diameter is connected, and after catch is folded to, when there is axial force, folded portion allows internal diameter to shrink or expansion, from without limiting axial deformation the circumferential stress because of connected regions, so as to reach effective damping effect；The utility model enumerates the sealing ring of three kinds of forms, simple in construction, convenient for production, improves the damping of sealing ring.
Description
Technical field
The utility model belongs to sealing ring field, and more particularly to a kind of folded flexible damps brush sealing ring.
Background technology
Brush seal is applied in aero-engine earliest, and Hou You GE companies are used on industrial combustion gas formula steam turbine, should
Use significant effect.The nineties, the incoming country, started on gas turbine is used in.
Brush seal is generally used for the gas medium sealing between static pieces, in the seal aspect such as liquid or dust, effect
It is fairly obvious.The direction of rotation of the bristle relative axle of brush seal is regularly arranged by certain angle of inclination, to reduce the mill of bristle
Damage, makes bristle be more easily adapted to conform to foozle and thermal deformation of rotor etc., and the rapid bullet after rotor moment significantly radial displacement
Return, keep seal clearance constant.One layer of high-abrasive material is typically sprayed with the axle surface of the free end in contact of bristle, during preventing work
Bristle scratches the diameter of axle, while can reduce the frictional dissipation of bristle.
Current existing brush seal structure includes front apron, rear baffle and middle brush filament, or baffle plate it
Between added with flexible thin catch, catch be close to brush filament, protect brush filament not by front gas shock, and provide vibration damping, but make
Used time, the problem of brush filament can be drilled out or come off from the gap of catch be present, in order to solve the above problems, improve catch, adopt
It is connected with damping fin internal diameter, and then guarantee brush filament will not drill out again, but after internal diameter is connected, circumferential stress hinders the axle of catch
To deformation, and then reduce damping.
Utility model content
In order to solve after internal diameter is connected, circumferential stress hinders the axial deformation of catch, and then reduces damping
Problem, propose that a kind of folded flexible damps brush sealing ring.
The technical solution adopted in the utility model is as follows：
Folded flexible damps brush sealing ring, including baffle plate, it is characterised in that：The baffle plate is divided into front apron and rear gear
Plate, brush filament is provided between the front apron and rear baffle, pleated sheet is provided between the brush filament and front apron, the pleated sheet is in
Z-type.
Further, one end of the Z-fold piece is fixed on front apron, and the other end is close to brush filament.
Further, one end of the Z-fold piece is provided with projection, and groove is correspondingly provided with front apron, to realize that Z-type is rolled over
Lamination radial positioning.
Further, one end of the Z-fold piece is connected with front apron by being welded mode.
Further, groove is correspondingly provided with the front apron and is placed in inner side or outside.
Further, the pleated sheet passes through mechanical compaction mode fixing assembling.
Further, hollow out is airslide between the pleated sheet.
Further, the pleated sheet primarily radially hollow out or is divided into strip of sheet, in the one end pressed close to brush filament,
At least two silvers are circumferentially connected.
The utility model has the advantages that：
The utility model realizes that internal diameter is connected, and after catch is folded to, when there is axial force, folded portion allows internal diameter to shrink
Or expansion, from without limiting axial deformation the circumferential stress because of connected regions, so as to reach effective damping effect.
The utility model enumerates the sealing ring of three kinds of forms, simple in construction, convenient for production, improves the damping effect of sealing ring
Fruit.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model one.
Fig. 2 is the structural representation of the utility model two.
Fig. 3 is the structural representation of the utility model three.
Fig. 4 is pleated sheet partial structural diagram.
Reference：1st, front apron；2nd, rear baffle；3rd, pleated sheet；4th, brush filament.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings：
As Figure 1-4, folded flexible damps brush sealing ring, including baffle plate, it is characterised in that：Before the baffle plate is divided into
Baffle plate 1 and rear baffle 2, brush filament 4 is provided between the front apron 1 and rear baffle 2, folding is provided between the brush filament 4 and front apron 1
Lamination 3, the pleated sheet 3 are Z-shaped.One end of the Z-fold piece 3 is provided with projection, is correspondingly provided with groove on front apron 1, separately
It is close to brush filament 4 in one end.One end of the Z-fold piece 3 is connected with front apron 1 by being welded mode.Or the front apron 1
On be correspondingly provided with groove be placed in inner side or outside.The pleated sheet 3 passes through mechanical compaction mode fixing assembling.The pleated sheet
Hollow out is airslide between 3.Or the pleated sheet primarily radially hollow out or is divided into strip of sheet, presses close to brush filament
One end, all silvers are circumferentially connected as far as possible.
Embodiment：
Such as Fig. 1, the Z-fold piece 3 of circle is placed between front apron 1 and brush filament 4, one end of pleated sheet 3 is provided with projection,
And it is corresponding with the outside groove of front apron 1, then connected by being welded mode, the other end of pleated sheet 3 is close to brush filament 4.
Such as Fig. 2, the Z-fold piece 3 of circle is placed between front apron 1 and brush filament 4, one end of pleated sheet 3 is provided with projection,
And it is corresponding with the inboard groove of front apron 1, pass through mechanical compaction fixing assembling.
Such as Fig. 3, the Z-fold piece 3 of circle is placed between front apron 1 and brush filament 4, one end and the front apron 1 of pleated sheet 3
Inner side connected by being welded mode, the other end of pleated sheet 3 is close to brush filament 4.
The figures above, only show the embodiment of inner diameter seal.Same design can be used for outside diameter seal.Only need
By internal diameter and external diameter direction to turning.
It is described above, only specific embodiment of the present utility model, but the protection domain of utility model is not limited to
This, any those skilled in the art the change that can readily occur in or replace in the technical scope that the utility model discloses
Change, should all cover within the protection domain of utility model.
Claims (6)
1. folded flexible damps brush sealing ring, including baffle plate, it is characterised in that：The baffle plate is divided into front apron (1) and rear gear
Plate (2), brush filament (4) is provided between the front apron (1) and rear baffle (2), is provided between the brush filament (4) and front apron (1)
Pleated sheet (3), the pleated sheet (3) are Z-shaped；One end of the Z-fold piece (3) is fixed on front apron (1), and the other end is tight
Paste brush filament (4)；One end of the Z-fold piece (3) is provided with projection, and front apron is correspondingly provided with groove on (1), to realize that Z-type is rolled over
Lamination radial positioning.
2. folded flexible according to claim 1 damps brush sealing ring, it is characterised in that：The Z-fold piece (3)
One end is connected with front apron (1) by being welded mode.
3. folded flexible according to claim 1 damps brush sealing ring, it is characterised in that：The front apron (1) on pair
Inner side or outside should be placed in provided with groove.
4. folded flexible according to claim 1 damps brush sealing ring, it is characterised in that：The pleated sheet (3) passes through
Mechanical compaction mode fixing assembling.
5. folded flexible according to claim 1 damps brush sealing ring, it is characterised in that：Between the pleated sheet (3)
Hollow out is airslide.
6. folded flexible according to claim 1 damps brush sealing ring, it is characterised in that：The pleated sheet (3) with
One end that brush filament is pressed close to, at least two panels hollow out part are circumferential to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720677571.8U CN207049331U (en) | 2017-06-12 | 2017-06-12 | Folded flexible damps brush sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720677571.8U CN207049331U (en) | 2017-06-12 | 2017-06-12 | Folded flexible damps brush sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207049331U true CN207049331U (en) | 2018-02-27 |
Family
ID=61493793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720677571.8U Active CN207049331U (en) | 2017-06-12 | 2017-06-12 | Folded flexible damps brush sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207049331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021129985A1 (en) | 2021-11-17 | 2023-05-17 | MTU Aero Engines AG | Brush seal with rub-tolerant back-up ring structure |
-
2017
- 2017-06-12 CN CN201720677571.8U patent/CN207049331U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021129985A1 (en) | 2021-11-17 | 2023-05-17 | MTU Aero Engines AG | Brush seal with rub-tolerant back-up ring structure |
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| GR01 | Patent grant |