CN207245762U - A kind of low sluggish combination brush seal of adjustable contact gap - Google Patents
A kind of low sluggish combination brush seal of adjustable contact gap Download PDFInfo
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- CN207245762U CN207245762U CN201720976637.3U CN201720976637U CN207245762U CN 207245762 U CN207245762 U CN 207245762U CN 201720976637 U CN201720976637 U CN 201720976637U CN 207245762 U CN207245762 U CN 207245762U
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- 229910000639 Spring steel Inorganic materials 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
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- 239000003507 refrigerant Substances 0.000 description 1
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Abstract
A kind of low sluggish combination brush seal of adjustable contact gap is the utility model is related to, belongs to turbine seal technical field.The utility model includes front apron, rear baffle, brush filament ring I, brush filament ring II, brush filament ring III, bearing plate I, bearing plate II, spring, elastic ring, stator, trip bolt；Bearing plate I, bearing plate II are separately mounted between brush filament ring I and brush filament ring II, brush filament ring II and brush filament ring III, elastic ring is installed in stator, elastic ring one end is connected by trip bolt with the right rib of stator, the elastic ring other end is connected with the left rib of stator, combination brush seal ring outside diameter is tapered, and elastic ring internal diameter is tapered, combines outside diameter and the mutual wedging of elastic ring internal diameter of brush seal ring, spring one end is connected with the left rib of stator, and the other end on the left of front apron with being connected.The utility model contact gap is adjustable, and leakage is low, and obturaging property is good；Prolong the service life, economic benefit it is obvious；Gap control structure is adjusted simply, conveniently to dismantle, is easy to maintain.
Description
Technical field
A kind of low sluggish combination brush seal of adjustable contact gap is the utility model is related to, belongs to turbine seal technology neck
Domain.
Background technology
Sealing is that the special-purpose member of refrigerant leakage is reduced in turbomachinery flow passage component, is especially navigated in turbomachinery field
Often need to seal different pressures room in empty engine.Brush seal is that a kind of Efficient Damping of novel flexible contact is close
Envelope, its leakage rate is the 10%~20% of labyrinth seal, and has excellent rotor dynamic behavior.Therefore brush seal becomes biography
Unite one of replacer of labyrinth sealing.With the high rotating speed of aero-engine, High Pressure Difference, the such " three high " condition of high border rotating speed
Under, the sealing characteristics of brush seal are subject to baptism.In addition, brush wire bundle can pass through the portable protective gaps downstream bending of rear baffle
Cause to be plastically deformed, influence its sealing characteristics, even result in seal failure.After a protracted use, brush beam end is with turning
Son abrasion and cause gap to increase, leakage increase, seal failure influence aero-engine performance.
Utility model content
The purpose of this utility model is to provide a kind of low sluggish combination brush seal of adjustable contact gap, brush to solve
Sealing can not adjust contact gap, single-stage brush seal using leaking the problems such as big after long-time.
The utility model is realized by following technical scheme：A kind of low sluggish combination brush seal of adjustable contact gap, bag
Include front apron 1, rear baffle 2, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I 6, bearing plate II 7, spring 8, elasticity
Ring 10, stator 11, trip bolt 12；Bearing plate I 6, bearing plate II 7 are separately mounted to brush filament ring I 3 and brush filament ring II 4, brush filament ring
Between II 4 and brush filament ring III 5, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I 6, the fixed company in the top of bearing plate II 7
Connect to be formed fixed area 14 be installed between front apron 1, rear baffle 2, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I
6th, bearing plate II 7, front apron 1, rear baffle 2 form combination brush seal ring 17, and elastic ring 10 is installed in stator 11, elastic ring
10 one end are connected by the rib 13 right with the stator of stator 11 of trip bolt 12, and 10 other end of elastic ring and the stator of stator 11 are left
Rib 9 connects, and combination brush seal 17 outside diameters of ring are tapered, and 10 internal diameter of elastic ring is tapered, outside combination brush seal ring 17
Footpath and the mutual wedging of 10 internal diameter of elastic ring, the pretightning force for adjusting trip bolt 12 adjust the inside contracting of combination brush seal ring 17
Small degree, and then the contact gap between brush wire bundle end and rotor 16 is controlled, 8 one end of spring and the left rib of stator of stator 11
9 connections, the other end are connected with the left side of front apron 1, promote the process for combining brush seal ring 17 to rise tightening trip bolt 12
The dynamic stability effect of even movement.
Rectangular channel 15 is provided with the rear baffle 2, is advantageously reduced " hesitation " of traditional brush seal.
The taper angle θ of 10 internal diameter of elastic ring is 10 °~30 ° scopes.
17 rib 13 right with stator of combination brush seal ring is engaged, and rib left with stator 9 has not less than 6mm
Axial gap；The rib 9 left with stator of elastic ring 10 is engaged, and rib right with stator 13 has between the axial direction not less than 4mm
Gap
The spring 8 is not less than 5mm in 11 inner periphery spaced at equal angles around of stator 4~8, compression or extended length,
The dynamic stability effect uniformly moved is served as in gap adjustment.
The trip bolt 12 is played regulatory role in 11 circumference spaced at equal angles around of stator 4~8.
The spring 8 is spring steel, and elastic ring 10 is 1Cr13.
A kind of operation principle of the low sluggish combination brush seal of adjustable contact gap is：The left rib 9 of stator and stator are right
Rib 13 clamps elastic ring 10 and rear baffle 2, and the outside diameter of combination brush seal ring 17 is tapered, and has same taper with internal diameter
10 mutual wedging of elastic ring.When upstream gas is come temporarily, brush filament ring I 3 sustains most of from upper together with bearing plate I 6
The pressure difference of trip, gas reduces rapidly pressure difference by the stop of brush filament ring I 3, then passes through brush filament ring II 4 and brush filament ring III 5 successively, lets out
Leakage meeting smaller, can greatly improve the sealing characteristics of brush filament sealing.In use for some time, due to brush wire bundle end and rotor 16
The abrasion that brings of friction, brush filament end and the contact gap of rotor 16 increase, and leakage can increase, and at this moment can increase trip bolt
12 pretightning force, it is brush close to adjust using sliding caused by taper of 10 internal diameter of elastic ring with combining 17 outside diameter of brush seal ring
The inside diminution degree of seal ring, and then control the contact gap between brush wire bundle end and rotor 16.
The utility model has the advantages that：
1st, contact gap is adjustable, and leakage is low, and obturaging property is good；
2nd, prolong the service life, economic benefit it is obvious；
3rd, gap control structure is adjusted simply, conveniently to dismantle, is easy to maintain；
4th, multistage brush seal is applied in combination, and can avoid single-stage that the increase heavy influence brought is used for multiple times.
Brief description of the drawings
Fig. 1 is the utility model structural front view；
Fig. 2 is the utility model axis geodesic structure schematic diagram；
Fig. 3 combines brush seal ring structure front view for the utility model；
Fig. 4 is the utility model rear baffle three dimensional structure diagram.
In figure respectively marked as：1：Front apron, 2：Rear baffle, 3：Brush filament ring I, 4：Brush filament ring II, 5：Brush filament ring III, 6：Pressure-bearing
Plate I, 7：Bearing plate II, 8：Spring, 9：The left rib of stator, 10：Elastic ring, 11：Stator, 12：Trip bolt, 13：The right gear of stator
Side, 14：Fixed area, 15：Rectangular channel, 16：Rotor, 17：Combine brush seal ring.
Embodiment
With reference to the accompanying drawings and examples, the utility model is described in further detail, but the content of the utility model is not
It is limited to the scope.
Embodiment 1：As shown in Figs 1-4, the low sluggish combination brush seal of a kind of adjustable contact gap, including front apron 1,
Rear baffle 2, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I 6, bearing plate II 7, spring 8, elastic ring 10, stator
11st, trip bolt 12；Bearing plate I 6, bearing plate II 7 are separately mounted to brush filament ring I 3 and brush filament ring II 4, brush filament ring II 4 and brush filament
Between ring III 5, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I 6, the top of bearing plate II 7 are fixedly connected to form fixation
Area 14 is installed between front apron 1, rear baffle 2, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I 6, bearing plate II
7th, front apron 1, rear baffle 2 form combination brush seal ring 17, and elastic ring 10 is installed in stator 11, and 10 one end of elastic ring passes through
The rib 13 right with the stator of stator 11 of trip bolt 12 is connected, and 10 other end of elastic ring rib 9 left with the stator of stator 11 is connected,
Combination brush seal 17 outside diameters of ring are tapered, and 10 internal diameter of elastic ring is tapered, the outside diameter and elastic ring of combination brush seal ring 17
The mutual wedging of 10 internal diameters, the pretightning force for adjusting trip bolt 12 adjust the inside diminution degree of combination brush seal ring 17, into
And the contact gap between brush wire bundle end and rotor 16 is controlled, 8 one end of spring rib 9 left with the stator of stator 11 is connected, separately
One end is connected with the left side of front apron 1, promotes the process for combining brush seal ring 17 to play what is uniformly moved tightening trip bolt 12
Dynamic stability acts on.
Rectangular channel 15 is provided with rear baffle 2, is advantageously reduced " hesitation " of traditional brush seal.
The taper angle θ of 10 internal diameter of elastic ring is 10 °.
17 rib 13 right with stator of combination brush seal ring is engaged, and rib left with stator 9 has the axis not less than 6mm
To gap；The rib 9 left with stator of elastic ring 10 is engaged, and rib right with stator 13 has the axial gap not less than 4mm
Spring 8 is in 11 inner periphery spaced at equal angles around of stator 4, and compression or extended length are not less than 5mm, in gap tune
The dynamic stability effect uniformly moved is served as during section.
Trip bolt 12 is played regulatory role in 11 circumference spaced at equal angles around of stator 4.
Spring 8 is spring steel, and elastic ring 10 is 1Cr13.
Embodiment 2：As shown in Figs 1-4, the low sluggish combination brush seal of a kind of adjustable contact gap, including front apron 1,
Rear baffle 2, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I 6, bearing plate II 7, spring 8, elastic ring 10, stator
11st, trip bolt 12；Bearing plate I 6, bearing plate II 7 are separately mounted to brush filament ring I 3 and brush filament ring II 4, brush filament ring II 4 and brush filament
Between ring III 5, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I 6, the top of bearing plate II 7 are fixedly connected to form fixation
Area 14 is installed between front apron 1, rear baffle 2, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I 6, bearing plate II
7th, front apron 1, rear baffle 2 form combination brush seal ring 17, and elastic ring 10 is installed in stator 11, and 10 one end of elastic ring passes through
The rib 13 right with the stator of stator 11 of trip bolt 12 is connected, and 10 other end of elastic ring rib 9 left with the stator of stator 11 is connected,
Combination brush seal 17 outside diameters of ring are tapered, and 10 internal diameter of elastic ring is tapered, the outside diameter and elastic ring of combination brush seal ring 17
The mutual wedging of 10 internal diameters, the pretightning force for adjusting trip bolt 12 adjust the inside diminution degree of combination brush seal ring 17, into
And the contact gap between brush wire bundle end and rotor 16 is controlled, 8 one end of spring rib 9 left with the stator of stator 11 is connected, separately
One end is connected with the left side of front apron 1, promotes the process for combining brush seal ring 17 to play what is uniformly moved tightening trip bolt 12
Dynamic stability acts on.
Rectangular channel 15 is provided with rear baffle 2, is advantageously reduced " hesitation " of traditional brush seal.
The taper angle θ of 10 internal diameter of elastic ring is 20 °.
17 rib 13 right with stator of combination brush seal ring is engaged, and rib left with stator 9 has the axis not less than 6mm
To gap；The rib 9 left with stator of elastic ring 10 is engaged, and rib right with stator 13 has the axial gap not less than 4mm
Spring 8 is in 11 inner periphery spaced at equal angles around of stator 6, and compression or extended length are not less than 5mm, in gap tune
The dynamic stability effect uniformly moved is served as during section.
Trip bolt 12 is played regulatory role in 11 circumference spaced at equal angles around of stator 6.
Spring 8 is spring steel, and elastic ring 10 is 1Cr13.
Embodiment 3：As shown in Figs 1-4, the low sluggish combination brush seal of a kind of adjustable contact gap, including front apron 1,
Rear baffle 2, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I 6, bearing plate II 7, spring 8, elastic ring 10, stator
11st, trip bolt 12；Bearing plate I 6, bearing plate II 7 are separately mounted to brush filament ring I 3 and brush filament ring II 4, brush filament ring II 4 and brush filament
Between ring III 5, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I 6, the top of bearing plate II 7 are fixedly connected to form fixation
Area 14 is installed between front apron 1, rear baffle 2, brush filament ring I 3, brush filament ring II 4, brush filament ring III 5, bearing plate I 6, bearing plate II
7th, front apron 1, rear baffle 2 form combination brush seal ring 17, and elastic ring 10 is installed in stator 11, and 10 one end of elastic ring passes through
The rib 13 right with the stator of stator 11 of trip bolt 12 is connected, and 10 other end of elastic ring rib 9 left with the stator of stator 11 is connected,
Combination brush seal 17 outside diameters of ring are tapered, and 10 internal diameter of elastic ring is tapered, the outside diameter and elastic ring of combination brush seal ring 17
The mutual wedging of 10 internal diameters, the pretightning force for adjusting trip bolt 12 adjust the inside diminution degree of combination brush seal ring 17, into
And the contact gap between brush wire bundle end and rotor 16 is controlled, 8 one end of spring rib 9 left with the stator of stator 11 is connected, separately
One end is connected with the left side of front apron 1, promotes the process for combining brush seal ring 17 to play what is uniformly moved tightening trip bolt 12
Dynamic stability acts on.
Rectangular channel 15 is provided with rear baffle 2, is advantageously reduced " hesitation " of traditional brush seal.
The taper angle θ of 10 internal diameter of elastic ring is 30 °.
17 rib 13 right with stator of combination brush seal ring is engaged, and rib left with stator 9 has the axis not less than 6mm
To gap；The rib 9 left with stator of elastic ring 10 is engaged, and rib right with stator 13 has the axial gap not less than 4mm
Spring 8 is in 11 inner periphery spaced at equal angles around of stator 8, and compression or extended length are not less than 5mm, in gap tune
The dynamic stability effect uniformly moved is served as during section.
Trip bolt 12 is played regulatory role in 11 circumference spaced at equal angles around of stator 8.
Spring 8 is spring steel, and elastic ring 10 is 1Cr13.
Claims (7)
- A kind of 1. low sluggish combination brush seal of adjustable contact gap, it is characterised in that：Including front apron（1）, rear baffle （2）, brush filament ring I（3）, brush filament ring II（4）, brush filament ring III（5）, bearing plate I（6）, bearing plate II（7）, spring（8）, elastic ring （10）, stator（11）, trip bolt（12）；Bearing plate I（6）, bearing plate II（7）It is separately mounted to brush filament ring I（3）With brush filament ring Ⅱ（4）, brush filament ring II（4）With brush filament ring III（5）Between, brush filament ring I（3）, brush filament ring II（4）, brush filament ring III（5）, bearing plate I （6）, bearing plate II（7）Top is fixedly connected to form fixed area（14）Installed in front apron（1）, rear baffle（2）Between, brush filament ring Ⅰ（3）, brush filament ring II（4）, brush filament ring III（5）, bearing plate I（6）, bearing plate II（7）, front apron（1）, rear baffle（2）Composition group Close brush seal ring（17）, elastic ring（10）Installed in stator（11）It is interior, elastic ring（10）One end passes through trip bolt（12）With The right rib of stator（13）Connection, elastic ring（10）The other end and the left rib of stator（9）Connection, combines brush seal ring（17）Outside diameter It is tapered, elastic ring（10）Internal diameter is tapered, combines brush seal ring（17）Outside diameter and elastic ring（10）The mutual wedging of internal diameter, Spring（8）One end and the left rib of stator（9）Connection, the other end and front apron（1）Left side connects.
- 2. the low sluggish combination brush seal of adjustable contact gap according to claim 1, it is characterised in that：Gear after described Plate（2）On be provided with rectangular channel（15）, advantageously reduce " hesitation " of traditional brush seal.
- 3. the low sluggish combination brush seal of adjustable contact gap according to claim 1, it is characterised in that：The elasticity Ring（10）The taper angle θ of internal diameter is 10 °~30 ° scopes.
- 4. the low sluggish combination brush seal of adjustable contact gap according to claim 1, it is characterised in that：The combination Brush seal ring（17）With the right rib of stator（13）Be engaged, and with the left rib of stator（9）Have and be not less than between the axial direction of 6mm Gap；Elastic ring（10）With the left rib of stator（9）Be engaged, and with the right rib of stator（13）There is the axial gap not less than 4mm.
- 5. the low sluggish combination brush seal of adjustable contact gap according to claim 1, it is characterised in that：The spring （8）In stator（11）Inner periphery spaced at equal angles around 4~8, compression or extended length are not less than 5mm, in gap adjustment Serve as the dynamic stability effect uniformly moved.
- 6. the low sluggish combination brush seal of adjustable contact gap according to claim 1, it is characterised in that：The fastening Screw（12）In stator（11）Circumference spaced at equal angles around 4~8, plays regulatory role.
- 7. the low sluggish combination brush seal of adjustable contact gap according to claim 1, it is characterised in that：The spring （8）For spring steel, elastic ring（10）For 1Cr13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720976637.3U CN207245762U (en) | 2017-08-07 | 2017-08-07 | A kind of low sluggish combination brush seal of adjustable contact gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720976637.3U CN207245762U (en) | 2017-08-07 | 2017-08-07 | A kind of low sluggish combination brush seal of adjustable contact gap |
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| CN207245762U true CN207245762U (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720976637.3U Active CN207245762U (en) | 2017-08-07 | 2017-08-07 | A kind of low sluggish combination brush seal of adjustable contact gap |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401427A (en) * | 2017-08-07 | 2017-11-28 | 昆明理工大学 | A kind of low sluggish combination brush seal of adjustable contact gap |
| CN113508252A (en) * | 2019-03-28 | 2021-10-15 | 美国圣戈班性能塑料公司 | Sealing element |
-
2017
- 2017-08-07 CN CN201720976637.3U patent/CN207245762U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401427A (en) * | 2017-08-07 | 2017-11-28 | 昆明理工大学 | A kind of low sluggish combination brush seal of adjustable contact gap |
| CN113508252A (en) * | 2019-03-28 | 2021-10-15 | 美国圣戈班性能塑料公司 | Sealing element |
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