CN208236513U - 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
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- CN208236513U CN208236513U CN201820617764.9U CN201820617764U CN208236513U CN 208236513 U CN208236513 U CN 208236513U CN 201820617764 U CN201820617764 U CN 201820617764U CN 208236513 U CN208236513 U CN 208236513U
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Abstract
The utility model 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 rolling connected rigid rotating body and flexible rotating body, the flexible rotating body includes main shaft core and the flexible seal layer that main shaft core outer layer is arranged in；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 utility model 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, vibration and the other negative energies generated when high temperature and high pressure gas flowing on the basis of meeting seal request, and can guarantee good sealing effect under open fire operating condition.
Description
Technical field
The utility model belongs to technical field of mechanical, and in particular to tangential dynamic sealing outside a kind of high temperature and high pressure gas
Device.
Background technique
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, in engine operation
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 to reduce in the case where the time is long between material.
Utility model content
The utility model provides a kind of sealing of good two rolling element contact positions, which is conducive to elimination two
Vibration, circular runout, play and the abrasion that a roller generates when rotating, and can be realized automatic compensation, specific technical side
Case are as follows:
Tangential dynamic sealing device outside a kind of high temperature and high pressure gas, including rolling connected rigid rotating body and flexible rotating
Body, the flexible rotating body include the flexible seal layer of main shaft core and main shaft core outer layer；The flexible seal layer is by along main shaft
High-temperature alloy layer that core radial direction is successively arranged from inside to outside, flexible resilient layer, heat resistant and wear resistant damage alloy-layer composition；Institute
Rigid rotating body and the contact of flexible rotating dignity are stated, and the distance at two center of rigid rotating body and flexible rotating body is less than its radius
The sum of.
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 dynamic sealing device tangential 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 rotation speed is got over
Fastly, sealing effect is better, can make outer tangential dynamic sealing effect is close to be absolutely sealed when revolving 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, so that the tangent is become the face contact of proper width.
Flexible seal layer is carbon fiber preform or high silica fiber braided fabric is glue laminated molding, be can effectively avoid bright
Fire, impact, vibration 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 is the rotary body of two relative rollings with center rotor, 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 be also easy to produce bounce, play, cause engine operation abnormal, the utility model technology be used in rotary engine, will in
Heart rotor design is flexible rotating body, is rigid rotating body by sealing gland rotor design, its leakproofness can be effectively increased, worked
Cheng Zhong, the case where avoiding engine bounce, play, and it is not necessarily to lubricating oil, in the gas of chamber Indoor Combustion, because using carbon fiber
Braided fabric or high silica fiber braided fabric, can effectively avoid open fire.
The utility model has the following beneficial effects: rigid rotating body surface face and flexible rotating body surface face are in relative rolling process
In, outer tangential contact is become into face contact, excellent sealing can be achieved in when quiet dynamic, and sealing effect is with rotary body rotation speed
Increase and improve, when revolving speed reaches certain value, sealing effect is close to being absolutely sealed.The utility model is not necessarily to oil lubrication,
Sealing system lubrication oil consumption can be effectively reduced, reduces environmental pollution, flexible seal layer structure is on the basis for meeting seal request
On the noise, vibration and the other negative energies that generate when can effectively absorb high temperature and high pressure gas flowing, and can be protected under open fire operating condition
Demonstrate,prove good sealing effect.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model.
Fig. 2 is the enlarged drawing at I.
Wherein: 1- flexible rotating body, 2- rigid rotating body, 3. flexible seal layers, 4- main shaft core
5- high-temperature alloy layer, 6- flexible resilient layer, 7- heat resistant and wear resistant damage alloy-layer.
Specific embodiment
Embodiment 1
The device is applied in rotary engine, the engine chamber is by center rotor, sealing gland rotor, cylinder barrel, work
Plug and both ends body collectively form, and center rotor is designed as flexible rotating body (1), and sealing gland rotor design is rigid rotating body (2),
Center rotor is made of main shaft core (4) and the flexible seal layer (3) being rolled on main shaft core (4), and flexible seal layer (3) is by along master
High-temperature alloy layer (5) that central spindle (4) radial direction is successively arranged from inside to outside, flexible resilient layer (6), heat resistant and wear resistant damage are closed
Layer gold (7) composition, wherein high-temperature alloy layer (5) is cobalt-base alloys, heat resistant and wear resistant damage alloy-layer (7) is beraloy,
Flexible resilient layer (6) is carbon fiber preform.
When engine stop operating, combustion gas realizes good sealing in chamber, when the engine operates, flexibility rotation
The surface on the surface and rigid rotating body (2) that turn (1) becomes face contact, sealing effect during scrolling, by outer tangential contact
Fruit is improved with the increase of the rotation 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 rolling connected rigid rotating body (2) and flexible rotation
It turns (1), it is characterised in that:
The flexible rotating body (1) includes the flexible seal layer (3) of main shaft core (4) and setting in main shaft core (4) outer layer；
High-temperature alloy layer (5), the flexible resilient layer that the flexible seal layer (3) is set gradually from inside to outside by main shaft core (4)
(6), heat resistant and wear resistant damage alloy-layer (7) composition；
The rigid rotating body (2) and flexible rotating body (1) face contact, and in rigid rotating body (2) and flexible rotating body (1) 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) be 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) is cobalt-base alloys or beryllium-bronze.
4. a kind of started using the rotor of dynamic sealing device tangential 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 |
|---|---|---|---|
| CN201820617764.9U CN208236513U (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 |
|---|---|---|---|
| CN201820617764.9U CN208236513U (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 |
|---|---|
| CN208236513U true CN208236513U (en) | 2018-12-14 |
Family
ID=64584734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820617764.9U Active CN208236513U (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) | CN208236513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412632A (en) * | 2018-04-27 | 2018-08-17 | 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 CN201820617764.9U patent/CN208236513U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412632A (en) * | 2018-04-27 | 2018-08-17 | 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 |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190910 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 Patentee after: Xi'an Dingjie Sealing Technology Co., Ltd. Address before: 710011 No. 41 Beixin Street, Dongwei Village, Xi'an Space Base, Shaanxi Province Patentee before: Xi'an Ding Jie Power Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |