CN203571042U - Abradable coating honeycomb seal - Google Patents
Abradable coating honeycomb seal Download PDFInfo
- Publication number
- CN203571042U CN203571042U CN201320696870.8U CN201320696870U CN203571042U CN 203571042 U CN203571042 U CN 203571042U CN 201320696870 U CN201320696870 U CN 201320696870U CN 203571042 U CN203571042 U CN 203571042U
- Authority
- CN
- China
- Prior art keywords
- coating
- seal
- abradable
- honeycomb
- honeycomb seal
- 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 - Lifetime
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 63
- 238000000576 coating method Methods 0.000 title claims abstract description 63
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims abstract description 7
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 9
- 238000007790 scraping Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 241000264877 Hippospongia communis Species 0.000 abstract 10
- 238000007791 dehumidification Methods 0.000 abstract 1
- 238000009991 scouring Methods 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 4
- 210000004907 gland Anatomy 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000033999 Device damage Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The utility model provides an abradable coating honeycomb seal. The abradable coating honeycomb seal is technically characterized in that an abradable seal coating of a binding phase metallic matrix is sprayed in an aluminum honeycomb seal inner hole, the honeycomb seal comprises a body made of aluminum materials, according to different working conditions, APS is adopted on the inner surface of a honeycomb seal body, after the abradable seal coating of the binding phase metallic matrix is technologically sprayed, regular hexagonal honeycombs are processed to form the honeycomb seal, wherein the thickness of the abradable seal coating ranges from 0.5 mm to 1.5 mm, and the abradable seal coating is made of different components. The abradable seal coating is composed of a certain proportion of a metallic phase, a non-metallic phase with the lubrication function and holes, wherein the most common thickness of the coating is 0.5 mm or 1mm or 1.5 mm. The abradable coating honeycomb seal has the advantages that according to the combined-type seal, the honeycomb seal is integrated, sub-asynchronous vibration can be reduced, dehumidification is achieved, and an interval between the abradable seal coating and a shaft is approximately eliminated. Overall length tight sealing of the inner hole is achieved, the sealing effect is better, the abradable seal coating has self lubrication, the anti-scouring performance, the scraping performance and corrosion resistance, and the obtained honeycomb seal is wider in application range.
Description
Technical field
The utility model relates to a kind of novel
can grind coating honeycomb seal, the New honeycomb sealing that particularly a kind of aluminum honeycomb seal and abradable seal coating combine.
Background technique
Steam turbine, gas turbine in modern industry. the application area of compressor, blower is more and more wider, and the quality of equipment sealability not only has influence on manufacturing efficiency, is still related to the important step of production safety.Honeycomb seal because of its have wear-resistant, not hindering axle, high pressure resistant, sealing effect, to be better than common labyrinth seal, life-span long.Reduce sub-asynchronous vibration and tool and become the outstanding person in various gas seal forms except the advantage such as moist.But because its material is aluminium, for preventing aluminium and the axle generation seize phenomenon running up, cause device damage, so all leave 20 above gaps, road.Along with industrial expansion, the more and more large-scale change of equipment, more gross leak amount is larger for same gap device.To main equipment, reduce the economic benefit of the gap generation in several roads and all cannot estimate.Existing brush steam seal, contact type cellular steam seal, DAS sealing gland etc., be all in a whole set of sealing gland, to increase several little gap sealing gland teeth, and the sealing effect of increase is limited.Along with developing rapidly of aviation industry and being showing improvement or progress day by day of aeronautical technology, new material new process emerges in an endless stream, and wherein the application of abradable seal coating has improved thrust and the efficiency of aeroengine greatly.Abradable seal coating is by a certain proportion of Metal Phase and have the nonmetallic phase of lubrication and more space forms.The erosion of existing enough intensity opposing external particle and gas, again can be by scraping, when blade and coating generation rubbing contact, coating is by scraping and vane tip is not is not worn and torn, and coating does not come off, and can dwindle gas circuit, the gap of obturaging, reduces gas leakage, effectively improves the working efficiency of airplane engine.
summary of the invention
The purpose of this utility model is the deficiency existing in above-mentioned technology, provides
one can be ground coating honeycomb seal,abradable seal coating and honeycomb seal are combined, make full use of
honeycomb sealcan reduce sub-asynchronous vibration and tool except the advantage such as moist and
abradable seal coatingduring with axle rubbing contact, coating is by scraping and the characteristic that axle does not does not wear and tear, by realizing at honeycomb seal endoporus spraying abradable seal coating the gap that further dwindles honeycomb seal and axle, the object of reduction leakage rate.
The purpose of this utility model is achieved in that and comprises aluminum honeycomb seal, abradable seal coating, it is characterized in that, at the abradable seal coating of aluminum honeycomb seal endoporus spraying Binder Phase metallic matrix.
Adopt the abradable seal coating of the thick Binder Phase metallic matrix of plasma spray technology spraying 0.5-1.5mm, honeycomb seal can coordinate making by zero clearance with axle, honeycomb seal endoporus and the moulding of axle self-friction after installation and operation a period of time, can be under the prerequisite of not damaging axle the minimum clearance under equipment actual working state.
At present both at home and abroad existing tens kinds of abradable seal coating powders for different operating modes, can be divided into according to the main component of Binder Phase metallic matrix wherein: aluminium and acieral coating, nickel and ni base alloy coating.Abradable seal coating has corrosion resistance, scour resistance and self lubricity, and scraping performance is good, and operating temperature reaches 325 ℃ with first-class advantage.The conventional working lining that has is Ni-graphite, and bottom is Ni
5aL's
conventional abradable seal coatingwith working lining be aluminium silicon polybenzoate, bottom is Ni
5aL's
aluminium silicon polybenzoate class abradable seal coating.
The beneficial effects of the utility model: 1, this combined labyrinth and carbon gland combines honeycomb seal and can reduce sub-asynchronous vibration, be approximately zero advantage except moist and abradable seal coating and shaft clearance.2, honeycomb seal endoporus all sprays abradable seal coating, has realized endoporus total length and has obturaged, and sealing effect is better.3, abradable seal coating tool self lubricity, scour resistance, scraping and corrosion resistance, the honeycomb seal Applicable scope of making is wider.
accompanying drawing explanation:
Fig. 1 is honeycomb seal schematic diagram
Fig. 2 is regular hexagon honeycomb.
embodiment:
Below in conjunction with accompanying drawing, concrete enforcement of the present invention is described further:
From Fig. 1-Fig. 2, honeycomb seal is body by aluminium, according to different operating modes, in honeycomb seal body internal surface, adopts plasma spraying APS, after the abradable seal coating of the Binder Phase metallic matrix of the thick heterogeneity of technique spraying 0.5-1.5mm, processing regular hexagon honeycomb forms honeycomb seal.Abradable seal coating is comprised of a certain proportion of Metal Phase and nonmetallic phase and the hole with lubrication.Wherein coating thickness is the most conventional with 0.5mm, 1mm, 1.5mm.Honeycomb seal install before in hole dimension and sealed shaft clearance be approximately zero, axle can just pass honeycomb seal endoporus, honeycomb seal is installed on equipment operational outfit afterwards, in servicely carries out self-friction moulding.Equipment abradable seal coating in service and the tactile friction that produces that is coupling, because of the scraping of abradable seal coating tool, prior to axle, be worn, being scraped the abradable seal coating part chipping away enters in coating porosity, make coating finer and close, anti-medium erosion is better, and another part forms ash and cuts sealed medium and take away.Can be under the prerequisite of not damaging axle the minimum clearance under equipment actual working state.It is Ni-graphite that conventional abradable seal coating has working lining, and bottom is Ni
5the conventional abradable seal coating of AL, working lining are aluminium silicon polybenzoate, and bottom is Ni
5the aluminium silicon polybenzoate class abradable seal coating of AL.
Claims (6)
1. can grind a coating honeycomb seal, comprise aluminum honeycomb seal, abradable seal coating, it is characterized in that, at the abradable seal coating of aluminum honeycomb seal endoporus spraying Binder Phase metallic matrix.
2. the coating honeycomb seal that grinds according to claim 1, is characterized in that, coating thickness is 0.5mm-1.5mm.
3. according to claim 1
can grind coating honeycomb seal, it is characterized in that, coating thickness is 0.5mm.
4. according to claim 1
can grind coating honeycomb seal, it is characterized in that, coating thickness is 1mm.
5. according to claim 1
can grind coating honeycomb seal, it is characterized in that, coating thickness is 1.5mm.
6. according to claim 1
can grind coating honeycomb seal, it is characterized in that, in the abradable seal coating of the different Binder Phase metallic matrixes of internal surface spraying, selection work layer is Ni-graphite, bottom is Ni
5the conventional abradable seal coating of AL or working lining are aluminium silicon polybenzoate, and bottom is Ni
5the aluminium silicon polybenzoate class abradable seal coating of AL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320696870.8U CN203571042U (en) | 2013-11-07 | 2013-11-07 | Abradable coating honeycomb seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320696870.8U CN203571042U (en) | 2013-11-07 | 2013-11-07 | Abradable coating honeycomb seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203571042U true CN203571042U (en) | 2014-04-30 |
Family
ID=50538774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320696870.8U Expired - Lifetime CN203571042U (en) | 2013-11-07 | 2013-11-07 | Abradable coating honeycomb seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203571042U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179696A (en) * | 2015-09-14 | 2015-12-23 | 沈阳航空航天大学 | Novel rotor structure for hole-pattern seal |
| CN105333148A (en) * | 2015-11-26 | 2016-02-17 | 哈尔滨工程大学 | Flexible seal-rotor system shallow-groove-face sleeve capable of increasing lift force |
| CN105568200A (en) * | 2015-11-25 | 2016-05-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Technical method for preparing seal coating by plasma spraying of aggregated powder |
| CN106756741A (en) * | 2016-12-02 | 2017-05-31 | 哈尔滨东安发动机（集团）有限公司 | The painting method of the anti-deflation seal coating of polybenzoate aluminium silicon |
| CN110592517A (en) * | 2019-10-24 | 2019-12-20 | 中国科学院工程热物理研究所 | Manufacturing method of high-temperature sealing coating structure |
| US10774670B2 (en) | 2017-06-07 | 2020-09-15 | General Electric Company | Filled abradable seal component and associated methods thereof |
| CN111765248A (en) * | 2020-05-12 | 2020-10-13 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Movable sealing oil baffle with abradable coating |
-
2013
- 2013-11-07 CN CN201320696870.8U patent/CN203571042U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179696A (en) * | 2015-09-14 | 2015-12-23 | 沈阳航空航天大学 | Novel rotor structure for hole-pattern seal |
| CN105568200A (en) * | 2015-11-25 | 2016-05-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Technical method for preparing seal coating by plasma spraying of aggregated powder |
| CN105333148A (en) * | 2015-11-26 | 2016-02-17 | 哈尔滨工程大学 | Flexible seal-rotor system shallow-groove-face sleeve capable of increasing lift force |
| CN106756741A (en) * | 2016-12-02 | 2017-05-31 | 哈尔滨东安发动机（集团）有限公司 | The painting method of the anti-deflation seal coating of polybenzoate aluminium silicon |
| US10774670B2 (en) | 2017-06-07 | 2020-09-15 | General Electric Company | Filled abradable seal component and associated methods thereof |
| CN110592517A (en) * | 2019-10-24 | 2019-12-20 | 中国科学院工程热物理研究所 | Manufacturing method of high-temperature sealing coating structure |
| CN111765248A (en) * | 2020-05-12 | 2020-10-13 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Movable sealing oil baffle with abradable coating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
|
| CX01 | Expiry of patent term |