CN108412632A - Tangential dynamic sealing device outside a kind of high temperature and high pressure gas - Google Patents
Tangential dynamic sealing device outside a kind of high temperature and high pressure gas Download PDFInfo
- Publication number
- CN108412632A CN108412632A CN201810391066.6A CN201810391066A CN108412632A CN 108412632 A CN108412632 A CN 108412632A CN 201810391066 A CN201810391066 A CN 201810391066A CN 108412632 A CN108412632 A CN 108412632A
- Authority
- CN
- China
- Prior art keywords
- rotating body
- flexible
- layer
- pressure gas
- high temperature
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 38
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 229910000906 Bronze Inorganic materials 0.000 claims description 2
- 239000010974 bronze Substances 0.000 claims description 2
- 239000008188 pellet Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005461 lubrication Methods 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/007—Arrangements of sealings in combustion engines involving rotary applications
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Devices (AREA)
Abstract
The invention belongs to technical field of mechanical, and in particular to tangential dynamic sealing device outside a kind of high temperature and high pressure gas.Tangential dynamic sealing device outside a kind of high temperature and high pressure gas, including roll connected rigid rotating body and flexible rotating body, the flexible rotating body include main shaft core and are arranged flexible seal layer in main shaft core outer layer；High-temperature alloy layer that the flexible seal layer is set gradually from inside to outside by main shaft core, flexible resilient layer, heat resistant and wear resistant damage alloy-layer form；The rigid rotating body and the contact of flexible rotating dignity, and the distance at two center of rigid rotating body and flexible rotating body is less than the sum of its radius, the present invention is not necessarily to oil lubrication, sealing system lubrication oil consumption can be effectively reduced, reduce environmental pollution, flexible seal layer structure can effectively absorb noise, vibrations and the other negative energies generated when high temperature and high pressure gas flowing on the basis of meeting seal request, and can ensure good sealing effect under open fire operating mode.
Description
Technical field
The invention belongs to technical field of mechanical, and in particular to tangential dynamic sealing dress outside a kind of high temperature and high pressure gas
It sets.
Background technology
Circularly moving piston formula rotor combustion chamber is total to by center rotor, sealing gland rotor, cylinder barrel, piston and both ends body
With constituting, an outer tangential contact is wherein produced between sealing gland rotor and center rotor, it is desirable that the contact position is to high temperature and pressure
Gas has good sealing effect, and in the prior art, center rotor and sealing gland rotor are rigid, works in engine
When, circular runout, play are easy to happen between vibrating body, and friction is generated between vibrating body, though lubricating oil is added, rigidity
Friction is easy to cause sealing performance reduction in the case where growing the time between material.
Invention content
The present invention provides a kind of sealing of good two rolling element contact positions, which is conducive to eliminate two rollings
Vibration, circular runout, play and the abrasion generated when son rotation, and can realize automatic compensation, specific technical solution is：
Tangential dynamic sealing device outside a kind of high temperature and high pressure gas, including roll connected rigid rotating body and flexible rotating body, institute
State the flexible seal layer that flexible rotating body includes main shaft core and main shaft core outer layer；The flexible seal layer from along main shaft core diameter to
High-temperature alloy layer that direction is equipped with successively from inside to outside, flexible resilient layer, heat resistant and wear resistant damage alloy-layer composition；The rigidity
Rotary body and the contact of flexible rotating dignity, and the distance at two center of rigid rotating body and flexible rotating body is less than the sum of its radius.
Preferably, the flexible seal layer is carbon fiber preform or high silica fiber braided fabric.
Preferably, heat resistant and wear resistant damage alloy-layer is cobalt-base alloys or beryllium-bronze.
Preferably, a kind of rotary engine using tangential dynamic sealing device outside above-mentioned high temperature and high pressure gas, center
Rotor design is flexible rotating body, and sealing gland rotor design is rigid rotating body.
Effective sealing can be realized when the device is stationary, and can will leak into sealing in two rotary body rotation processes
Minimum gas in faying face sends sealant back to, further increases sealing effect, and under equal conditions, rotor rotary speed is got over
Soon, sealing effect is better, can make outer tangential dynamic sealing effect is close to be absolutely sealed when rotating speed reaches certain value, meanwhile, rolling
In dynamic rotary course, the flexible seal layer of flexible rotating volume surrounding is generated recess by the extruding of rigid rotating body, two rotary bodies it
Between generate interference fit, make the tangent become proper width face contact.
Flexible seal layer is carbon fiber preform or high silica fiber braided fabric is glue laminated molding, be can effectively avoid bright
Fire, impact, vibrations and micro abrasion.
Carbon fiber preform or high silica fiber braided fabric have good incorgruous flexibility, high temperature resistant, resistance to open fire performance
It is more excellent.
In rotary engine, sealing gland rotor and the rotary body that center rotor is two relative rollings, in the prior art,
Sealing gland rotor and center rotor are rigid rotating body, under prolonged work, rub between rigid body, leakproofness is caused to drop
It is low, and it is also easy to produce bounce, play, lead to engine operation irregularity, by the technology of the present invention in rotary engine, center to be turned
Son is designed as flexible rotating body, is rigid rotating body by sealing gland rotor design, its leakproofness can be effectively increased, in the course of work
In, the case where avoiding engine bounce, play, and it is not necessarily to lubricating oil, in the gas of chamber Indoor Combustion, because being compiled using carbon fiber
Fabric or high silica fiber braided fabric, can effectively avoid open fire.
Beneficial effects of the present invention are：Rigid rotating body surface face and flexible rotating body surface face, will during relative rolling
Outer tangential contact becomes face contact, can be achieved excellent sealing when quiet dynamic, sealing effect with rotary body rotary speed increase
And improve, when rotating speed reaches certain value, sealing effect is close to being absolutely sealed.The present invention is not necessarily to oil lubrication, can effectively subtract
Few sealing system lubrication oil consumption, reduces environmental pollution, flexible seal layer structure can be effective on the basis of meeting seal request
Noise, vibrations and the other negative energies generated when high temperature and high pressure gas flowing is absorbed, and can be ensured under open fire operating mode good
Sealing effect.
Description of the drawings
Fig. 1 is the structure chart of the present invention.
Fig. 2 is the enlarged drawing at I.
Wherein：1- flexible rotating bodies, 2- rigid rotating bodies, 3. flexible seal layers, 4- main shaft cores
5- high-temperature alloy layers, 6- flexible resilient layers, 7- heat resistant and wear resistants damage alloy-layer.
Specific implementation mode
Embodiment 1
The device is applied in rotary engine, the engine chamber by center rotor, sealing gland rotor, cylinder barrel, piston and
Both ends body collectively forms, and center rotor is designed as flexible rotating body（1）, sealing gland rotor design is rigid rotating body（2）, center
Rotor is by main shaft core（4）And it is rolled in main shaft core（4）On flexible seal layer（3）Composition, flexible seal layer（3）By along main shaft core
（4）The high-temperature alloy layer that radial direction is equipped with successively from inside to outside（5）, flexible resilient layer（6）, heat resistant and wear resistant damage alloy-layer
（7）Composition, wherein high-temperature alloy layer（5）Alloy-layer is damaged for cobalt-base alloys, heat resistant and wear resistant（7）It is flexible for beraloy
Elastic layer（6）For carbon fiber preform.
When engine stop operates, combustion gas realizes good sealing in chamber, when the engine operates, flexibility rotation
Swivel（1）Surface and rigid rotating body（2）Surface in rolling process, by outer tangential contact become face contact, sealing effect
Fruit is improved with the increase of the rotary speed of two rotary bodies, and realizes automatic compensation.
Claims (4)
1. tangential dynamic sealing device outside a kind of high temperature and high pressure gas, including roll connected rigid rotating body（2）It is revolved with flexibility
Swivel（1）, it is characterised in that：
The flexible rotating body（1）Including main shaft core（4）And it is arranged in main shaft core（4）The flexible seal layer of outer layer（3）；
The flexible seal layer（3）By main shaft core（4）The high-temperature alloy layer set gradually from inside to outside（5）, flexible resilient layer
（6）, heat resistant and wear resistant damage alloy-layer（7）Composition；
The rigid rotating body（2）With flexible rotating body（2）Face contacts, and rigid rotating body（2）With flexible rotating body（1）In two
The distance of the heart is less than the sum of its radius.
2. tangential dynamic sealing device outside high temperature and high pressure gas as described in claim 1, it is characterised in that：The flexible pellet
Property layer（6）For carbon fiber preform or high silica fiber braided fabric.
3. tangential dynamic sealing device outside high temperature and high pressure gas as claimed in claim 2, it is characterised in that：The high temperature resistant
Wear-resistant alloy-layer（7）For cobalt-base alloys or beryllium-bronze.
4. a kind of using the rotor of tangential dynamic sealing device starts outside high temperature and high pressure gas as described in claim 1 or 2 or 3
Machine, it is characterised in that：Center rotor is designed as flexible rotating body, and sealing gland rotor design is rigid rotating body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810391066.6A CN108412632A (en) | 2018-04-27 | 2018-04-27 | Tangential dynamic sealing device outside a kind of high temperature and high pressure gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810391066.6A CN108412632A (en) | 2018-04-27 | 2018-04-27 | Tangential dynamic sealing device outside a kind of high temperature and high pressure gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108412632A true CN108412632A (en) | 2018-08-17 |
Family
ID=63137054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810391066.6A Pending CN108412632A (en) | 2018-04-27 | 2018-04-27 | Tangential dynamic sealing device outside a kind of high temperature and high pressure gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412632A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4028021A (en) * | 1975-12-08 | 1977-06-07 | Curtiss-Wright Corporation | Rotary trochoidal compressor with compressible sealing |
| CN1680697A (en) * | 2004-11-10 | 2005-10-12 | 刘博阳 | Toothed piston rotary engine |
| CN102337930A (en) * | 2010-06-10 | 2012-02-01 | 姚镇 | Star rotary rotation device |
| CN208236513U (en) * | 2018-04-27 | 2018-12-14 | 西安丁杰动力科技有限公司 | Tangential dynamic sealing device outside a kind of high temperature and high pressure gas |
-
2018
- 2018-04-27 CN CN201810391066.6A patent/CN108412632A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4028021A (en) * | 1975-12-08 | 1977-06-07 | Curtiss-Wright Corporation | Rotary trochoidal compressor with compressible sealing |
| CN1680697A (en) * | 2004-11-10 | 2005-10-12 | 刘博阳 | Toothed piston rotary engine |
| CN102337930A (en) * | 2010-06-10 | 2012-02-01 | 姚镇 | Star rotary rotation device |
| CN208236513U (en) * | 2018-04-27 | 2018-12-14 | 西安丁杰动力科技有限公司 | Tangential dynamic sealing device outside a kind of high temperature and high pressure gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190905 Address after: 710199 Room 314, 3rd Floor, Integrated Office Building, No. 58 Industrial Second Road, National Civil Aerospace Industry Base, Xi'an City, Shaanxi Province Applicant after: Xi'an Dingjie Sealing Technology Co.,Ltd. Address before: 710011 No. 41 Beixin Street, Dongwei Village, Xi'an Space Base, Shaanxi Province Applicant before: XI'AN DINGJIE POWER TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180817 |
|
| RJ01 | Rejection of invention patent application after publication |