CN110274102A - A kind of universal joint high temperature and high pressure gas sealing device - Google Patents
A kind of universal joint high temperature and high pressure gas sealing device Download PDFInfo
- Publication number
- CN110274102A CN110274102A CN201910573277.6A CN201910573277A CN110274102A CN 110274102 A CN110274102 A CN 110274102A CN 201910573277 A CN201910573277 A CN 201910573277A CN 110274102 A CN110274102 A CN 110274102A
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- China
- Prior art keywords
- transfer tube
- graphite
- high temperature
- graphite annulus
- universal joint
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- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
- F16L27/06—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/70—Cooling of pipes or pipe systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
A kind of universal joint high temperature and high pressure gas sealing device disclosed by the invention, belongs to universal joint field of sealing technology.The present invention is placed among aero-engine gas transfer pipeline, contact connection is produced as between outer transfer tube and preceding graphite annulus and rear graphite annulus, when transfer pipeline generates angle change or axial movement, relative movement is generated between outer transfer tube and preceding graphite annulus, rear graphite annulus, make the sealing device that there is bending and turning function, plays the role of that sealed high-temp high-pressure is poisonous and harmful and highly corrosive gas.The present invention is mainly combined by preceding graphite grazing, transfer tube, rear graphite grazing group are combined into.Preceding graphite grazing combination is mainly composed of preceding adapter, preceding graphite ring assemblies, preceding retainer ring.Graphite grazing combination afterwards is mainly composed of rear adapter, rear graphite ring assemblies, rear retainer ring.Preceding graphite ring assemblies are mainly made of preceding graphite annulus and preceding becket, and rear graphite ring assemblies are mainly made of rear graphite annulus and rear becket.
Description
Technical field
The invention belongs to universal joint field of sealing technology, are related to a kind of universal joint high temperature and high pressure gas sealing device, especially
It is related to the sealing device for aero-engine high temperature and high pressure gas transmitting device.
Background technique
Currently, universal joint sealing device is widely used in automobile driving system, it is combined, constitutes universal with transmission shaft
Save transmission device.But in terms of the high temperature and high pressure gas transmission of the rotation shaft mechanical such as aero-engine and centrifugal compressor not yet
To reference.
A kind of oil lubrication universal joint of high sealing of application number CN201610149565.5, Authorization Notice No. CN105673719A
Assembly solves the problems of the prior art, proposes a kind of oil lubrication universal joint assembly of high sealing, can effectively prevent from lubricating
Oil spill goes out, and extends the service life of axle sleeve, but the device is the technical field applied in automobile parts, and sealing medium is lubrication
Oil.
Summary of the invention
A kind of universal joint high temperature and high pressure gas sealing device technical problems to be solved disclosed by the invention are: for aviation
The conveying of engine high-temperature high pressure gas provides a kind of universal joint sealing device of high efficient and reliable, and it is defeated to be placed in aero-engine gas
It send among pipeline, while playing the role of sealing high-temperature gas, additionally it is possible to realize bending turning function, facilitate switching pipeline
Installation exercise, the gas suitable for rotating machinery conveys, is particularly suitable for so that high temperature and pressure is poisonous and harmful and corrosive gas
For the aero-engine of working media and the gas conveying of gas turbine, guarantee that gas conveys sealing performance.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of universal joint high temperature and high pressure gas sealing device disclosed by the invention, is placed in aero-engine air shooter
Among road, it is produced as contact connection between outer transfer tube and preceding graphite annulus and rear graphite annulus, becomes when transfer pipeline generates angle
When changing or moving axially, relative movement is generated between outer transfer tube and preceding graphite annulus, rear graphite annulus, has the sealing device
There are bending and turning function, plays the role of that sealed high-temp high-pressure is poisonous and harmful and highly corrosive gas.A kind of universal joint
Formula high temperature and high pressure gas sealing device is mainly combined by preceding graphite grazing, transfer tube, rear graphite grazing group are combined into.Preceding graphite is close
Envelope combination is mainly composed of preceding adapter, preceding graphite ring assemblies, preceding retainer ring.Graphite grazing combination is mainly by rear switching afterwards
Seat, rear graphite ring assemblies, rear retainer ring are composed.Preceding graphite ring assemblies are mainly made of preceding graphite annulus and preceding becket, rear stone
Black ring assemblies are mainly made of rear graphite annulus and rear becket.Preceding graphite annulus and preceding becket and preceding adapter are interference fitted, resistance
Only gas leaks.Graphite annulus and rear becket and rear adapter, interference fit prevent gas from leaking afterwards.Transfer tube is by outer switching
Pipe and interior transfer tube are composed.Interior transfer tube is composed of preceding transfer tube and rear transfer tube.Transfer tube China and foreign countries transfer tube point
It is not interference fitted with graphite annulus internal diameter in preceding graphite ring assemblies, rear graphite ring assemblies, plays the role of sealing gas.
The preceding graphite annulus, rear graphite annulus are referred to as graphite annulus.Preceding becket, rear becket are referred to as becket.The forward
Adapter tube, rear transfer tube are referred to as transfer tube.The preceding adapter, rear adapter are referred to as adapter.The preceding graphite ring assemblies, rear stone
Black ring assemblies are referred to as graphite ring assemblies.Preceding retainer ring, rear retainer ring are referred to as retainer ring.The preceding graphite grazing combination, rear graphite grazing group
It closes and is referred to as graphite grazing combination.Outer transfer tube, interior transfer tube are referred to as transfer tube.
Transfer tube is used and is made into a thickness of the high temperature alloy pipe sleeve of 0.2mm using the double-deck type of attachment, outer transfer tube, rigidity
Smaller, generation flexible deformation is larger when by external force, using circular arc spherical structure, can keep being bonded with graphite annulus inner wall same
When, movement freely, so that transfer tube both ends connecting tube generates bending, and still has sealing effect.Interior transfer tube use with a thickness of
0.4mm high temperature alloy pipes guarantee the strength and stiffness of interlude, when engine is by impact vibration, enhance the tired of sealed product
Labor intensity increases the service life.
The interior transfer tube uses thicker high temperature alloy pipes, thicker thickness according to the strength and stiffness of working condition requirement and
It is fixed.
The transfer tube is greater than graphite annulus by high-temperature alloy material linear expansion coefficient.
Depending on the smaller Deformation Demands according to outer transfer tube elastic properties of materials and when using of the rigidity.
The adapter outer diameter circumferential direction aperture, tapping are located above becket, and open amount is~a, opening connection
Ambient atmosphere plays the purpose of heat dissipation.Becket is interference fitted by rim of the mouth and adapter, magnitude of interference 0.02~
0.05mm.Retainer ring is opened there are two retainer ring hole, and retainer ring hole is cut away a notch by a domain, is easily installed.Retainer ring, which is installed on, to be turned
In joint chair slot, play the role of axially position.Transfer tube is composed of interior transfer tube and outer transfer tube.Transfer tube China and foreign countries transfer
Graphite annulus internal diameter interference fit in combining with graphite grazing is managed, sealing gas is played the role of.Interior transfer tube and outer transfer tube are logical
Welding is crossed, the two is fixed together.Outer transfer tube is with a thickness of 0.2mm, and interior transfer tube is with a thickness of 0.4mm.
The working method of a kind of universal joint high temperature and high pressure gas sealing device disclosed by the invention are as follows: high in transmission high temperature
Calm the anger body when, universal joint high temperature and high pressure gas sealing device heating expansion, transfer tube is processed by high-temperature alloy material
Type, linear expansion coefficient are greater than graphite annulus, and therefore, at high temperature, both outer transfer tube and graphite annulus magnitude of interference become larger, and play prevention
The purpose of gas leakage.When generating angle change or axial movement between outer transfer tube and graphite annulus, that is, realize that turning turns
To function, proper motion while capable of guaranteeing to keep being bonded with graphite annulus inner wall using the outer transfer tube of circular arc spherical structure,
Fitting is kept to realize sealing effect by graphite annulus inner wall, and transfer tube can be to poisonous and harmful and high using high-temperature alloy material
Corrosive gas has good protective action, and excessive stress is being caused to be concentrated lower than magnitude of interference under maximum temperature is unlikely
Lead to the problem of intensity decline.
The utility model has the advantages that
1, a kind of universal joint high temperature and high pressure gas sealing device disclosed by the invention, transfer tube is using the double-deck connection shape
Formula, outer transfer tube are made into using relatively thin high temperature alloy pipe sleeve, and rigidity is smaller, and generation flexible deformation is larger when by external force, interior
Transfer tube uses circular arc spherical structure, proper motion while guaranteeing to be bonded with the holding of graphite annulus inner wall, so that transfer tube both ends
Connecting tube generates bending, and still has sealing effect.Interior transfer tube uses thicker high temperature alloy pipes, guarantees the intensity and just of transfer tube
Degree, when engine is by impact vibration, interior transfer tube can enhance the fatigue strength of sealed product, increase the service life.
2, a kind of universal joint high temperature and high pressure gas sealing device disclosed by the invention, transfer tube is by high-temperature alloy material line
The coefficient of expansion is greater than graphite annulus, and the linear expansion coefficient difference of two kinds of materials is larger, has both guaranteed graphite annulus at the maximum temperature and metal
Ring cannot come off, and excessive to cause stress to be concentrated to generate asking for intensity decline lower than magnitude of interference under maximum temperature is unlikely
Topic.
3, a kind of universal joint high temperature and high pressure gas sealing device disclosed by the invention shares at interference fit 3: adapter
Interference fit, becket and graphite annulus interference fit and graphite annulus and outer transfer tube are interference fitted between becket, play resistance
The only purpose of gas leakage, and high-temperature alloy material has good protective action to poisonous and harmful and highly corrosive gas.
4, a kind of universal joint high temperature and high pressure gas sealing device disclosed by the invention uses graphite with transfer tube junction
Connection, graphite energy high temperature resistant, heat transfer are fast.Intermetallic metal ring is interference fitted with graphite annulus, is played and is strengthened graphite annulus intensity
Effect.Four uniformly distributed circular holes are opened respectively in the periphery of high temperature alloy adapter and becket, are conducive to high inside transfer tube
The heat dissipation of wet body.
5, a kind of universal joint high temperature and high pressure gas sealing device disclosed by the invention, when between outer transfer tube and graphite annulus
When generating angle change or axial movement, that is, realize turning turning function, it can using the outer transfer tube of circular arc spherical structure
Proper motion while guaranteeing to be bonded with the holding of graphite annulus inner wall keeps fitting to realize sealing effect by graphite annulus inner wall.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of universal joint high temperature and high pressure gas sealing device disclosed by the invention；
Fig. 2 is the preceding adapter structural schematic diagram of the invention patent；
Fig. 3 is the Spring Clip figure of the invention patent, and Fig. 3 a is main view, and Fig. 3 b is left view.
Fig. 4 is the universal joint sealing device force analysis figure of the invention patent；
Fig. 5 is transfer tube welding structure schematic diagram in the invention patent, and Fig. 5 a is transfer tube welding structure schematic diagram, Fig. 5 b
For partial enlarged view at spot welding.
Wherein: 1-preceding graphite grazing combination, 2-transfer tubes, 3-rear graphite grazing combinations, 11-preceding adapters, 112-
Preceding adapter hole, 12-preceding graphite ring assemblies, 121-preceding beckets, 122-preceding graphite annulus, 13-preceding retainer rings, 21-outer switchings
Pipe, 22-interior transfer tubes, 221-preceding interior transfer tubes, 222-rear interior transfer tube, 31-rear adapters, 32-rear graphite annulus groups
Part, 321-rear beckets, 322-rear graphite annulus, 33-rear retainer rings.
Specific embodiment
Objects and advantages in order to better illustrate the present invention with reference to the accompanying drawing do further summary of the invention with example
Explanation.
Embodiment 1:
As shown in Figure 1, it includes preceding graphite grazing that the present embodiment, which discloses a kind of universal joint high temperature and high pressure gas sealing device,
Combination 1, transfer tube 2,3 composition of rear graphite grazing combination.The sealing device has bending and turning function, and it is high to play sealing high temperature
Press poisonous and harmful and highly corrosive gas effect.Preceding graphite grazing combination is by preceding adapter 11, preceding graphite ring assemblies 12, preceding card
Circle 13 is composed.Graphite grazing combination afterwards is composed of rear adapter 31, rear graphite ring assemblies 32, rear retainer ring 33.Preceding stone
Black ring assemblies are made of preceding graphite annulus 122 and preceding becket 121, and rear graphite ring assemblies are by rear graphite annulus 322 and rear becket 321
Composition.Graphite annulus, becket and adapter three interference fit, prevent gas from leaking.Transfer tube 2 is by outer transfer tube 21 and interior turn
Adapter tube 22 is composed.Interior transfer tube is composed of preceding transfer tube 221 and rear transfer tube 222.2 China and foreign countries' transfer tube of transfer tube with
Graphite annulus internal diameter interference fit, plays the role of sealing gas in graphite grazing combination.Transfer tube China and foreign countries transfer tube and graphite are close
Graphite annulus internal diameter interference fit, plays the role of sealing gas in envelope combination.The sealing medium of product is air, temperature range:
(0~500) DEG C, pressure limit: (0.1~1.8) MPa.
As shown in Fig. 2, being provided with stomata on preceding becket 121 and rear becket 321, heat spreading function is played.
As shown in figure 3, preceding retainer ring 13 is provided with retainer ring hole 10, easy disassembly.
As shown in Figure 4 and Figure 5, the adapter in universal joint sealing device and transfer tube are welded to connect, graphite annulus combination
In graphite annulus and transfer tube in outer transfer tube formed contact circumference static seal；Interior switching in universal joint sealing device
Pipe and outer transfer tube are by internal high pressure compressed air (Pw) and external air pressure effect (P0).Due to inside and outside transfer tube it
Between there are gaps, there are gaps between part between outer transfer tube leading portion and graphite annulus contact position.
Therefore through force analysis, outer transfer tube leading portion stress is compressed air air pressure Pw and external air pressure P0 at bc sections
The resultant force F1 of generation, outer transfer tube middle section stress are compressed air air pressure Pw and resultant force F2 of the external air pressure P0 at cd sections,
System keeps balancing in both horizontally and vertically stress.
Transfer tube 2 is used and is made into a thickness of the high temperature alloy pipe sleeve of 0.2mm using the double-deck type of attachment, outer transfer tube 21,
Rigidity is smaller, and generation flexible deformation is larger when by external force, using circular arc spherical structure, can be bonded with the holding of graphite annulus inner wall
Meanwhile movement is freely, so that 2 both ends connecting tube of transfer tube generates bending, and still has sealing effect.Interior transfer tube 22 uses thickness
For 0.4mm high temperature alloy pipes, guarantee that the strength and stiffness of interlude enhance sealed product when engine is by impact vibration
Fatigue strength increases the service life.
Joining of graphite is used with transfer tube junction, graphite energy high temperature resistant, heat transfer is fastly.Intermetallic metal ring and graphite annulus carry out
Interference fit plays the role of strengthening graphite annulus intensity.Four are opened respectively in the periphery of high temperature alloy adapter and becket
Uniformly distributed circular hole is conducive to the heat dissipation of transfer tube internal high temperature gas.
In universal joint sealing device share interference fit 3 at: between adapter and becket interference fit, becket with
Graphite annulus interference fit and graphite annulus and outer transfer tube are interference fitted.
The material of adapter and becket is high temperature alloy, is 11.8 in 500 DEG C of maximum operating temperature of linear expansion coefficients
×10-6；Graphite annulus is 5.3 × 10 in 500 DEG C of linear expansion coefficient-6；Both the linear expansion coefficient difference of two kinds of materials is larger, guarantee
It is not disengaged in both maximum operating temperatures, both ensure that at the maximum temperature, graphite annulus cannot come off with becket, and make
Lower than under maximum temperature, magnitude of interference is unlikely excessive, and stress concentration leads to the problem of intensity decline.
Transfer tube is linked together by welding inside and outside transfer tube, can guarantee the sealing performance of high-temperature gas conveying.
A kind of working method of universal joint high temperature and high pressure gas sealing device disclosed in the present embodiment are as follows: in transmission high temperature
When high pressure gas, the universal joint high temperature and high pressure gas sealing device heating expansion, transfer tube 2 is processed by high-temperature alloy material
Molding, linear expansion coefficient are greater than graphite annulus, and therefore, at high temperature, outer transfer tube 21 becomes larger with both graphite annulus magnitude of interference, plays
The purpose for preventing gas from leaking.When generating angle change or axial movement between outer transfer tube 21 and graphite annulus, that is, realize
Turning turning function, while capable of guaranteeing to keep being bonded with graphite annulus inner wall using the outer transfer tube 21 of circular arc spherical structure just
Often movement keeps fitting to realize sealing effect by graphite annulus inner wall, and transfer tube 2 can be to toxic using high-temperature alloy material
Harmful and highly corrosive gas has good protective action, and excessive to cause lower than magnitude of interference under maximum temperature is unlikely
Stress concentration leads to the problem of intensity decline.
Above-described specific descriptions have carried out further specifically the purpose of invention, technical scheme and beneficial effects
It is bright, it should be understood that the above is only a specific embodiment of the present invention, the protection model being not intended to limit the present invention
It encloses, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (10)
1. a kind of universal joint high temperature and high pressure gas sealing device, is placed among aero-engine gas transfer pipeline, feature
Be: mainly by preceding graphite grazing combine (1), transfer tube (2), rear graphite grazing combination (3) form；Outer transfer tube (21) is with before
Contact connection is produced as between graphite annulus (122) and rear graphite annulus (322), when transfer pipeline generates angle change or axial direction
When mobile, relative movement is generated between outer transfer tube (21) and preceding graphite annulus (122), rear graphite annulus (322), fills the sealing
It sets with bending and turning function, plays the role of that sealed high-temp high-pressure is poisonous and harmful and highly corrosive gas；Preceding graphite grazing
Combination (1) is mainly composed of preceding adapter (11), preceding graphite ring assemblies (12), preceding retainer ring (13)；Graphite grazing combines afterwards
(3) it is mainly composed of rear adapter (31), rear graphite ring assemblies (32), rear retainer ring (33)；Preceding graphite ring assemblies (12) are main
To be made of preceding graphite annulus (122) and preceding becket (121), rear graphite ring assemblies (32) mainly by rear graphite annulus (322) and after
Becket (321) composition；Preceding graphite annulus (122) and preceding becket (121) and preceding adapter (11) are interference fitted, and gas is prevented to let out
Leakage；Graphite annulus (322) and rear becket (321) and rear adapter (31) afterwards, interference fit prevent gas from leaking；Transfer tube (2)
It is composed of outer transfer tube (21) and interior transfer tube (22)；Interior transfer tube (22) is by preceding transfer tube (221) and rear transfer tube
(222) it is composed；Transfer tube (2) China and foreign countries' transfer tube (21) respectively with preceding graphite ring assemblies (12), rear graphite ring assemblies (32)
Middle graphite annulus internal diameter interference fit, plays the role of sealing gas.
2. a kind of universal joint high temperature and high pressure gas sealing device as described in claim 1, it is characterised in that: the preceding graphite
Ring (122), rear graphite annulus (322) are referred to as graphite annulus；Preceding becket (121), rear becket (321) are referred to as becket；Before described
Transfer tube (221), rear transfer tube (222) are referred to as transfer tube；The preceding adapter (11), rear adapter (31) are referred to as adapter；
The preceding graphite ring assemblies (12), rear graphite ring assemblies (32) are referred to as graphite ring assemblies；Preceding retainer ring (13), rear retainer ring (33) are referred to as
Retainer ring；Graphite grazing combination is referred to as in the preceding graphite grazing combination (1), rear graphite grazing combination (3)；It is outer transfer tube (21), interior
Transfer tube (22) is referred to as transfer tube (2)；
Transfer tube (2) is used and is made into a thickness of the high temperature alloy pipe sleeve of 0.2mm using the double-deck type of attachment, outer transfer tube (21),
Rigidity is smaller, and generation flexible deformation is larger when by external force, using circular arc spherical structure, can be bonded with the holding of graphite annulus inner wall
Meanwhile movement is freely, so that transfer tube (2) both ends connecting tube generates bending, and still has sealing effect；Interior transfer tube (22) uses
With a thickness of 0.4mm high temperature alloy pipes, guarantee the strength and stiffness of interlude, when engine is by impact vibration, enhancing sealing is produced
The fatigue strength of product increases the service life.
3. a kind of universal joint high temperature and high pressure gas sealing device as claimed in claim 1 or 2, it is characterised in that: in described
Transfer tube (22) uses thicker high temperature alloy pipes, and thicker thickness is depending on the strength and stiffness of working condition requirement.
4. a kind of universal joint high temperature and high pressure gas sealing device as claimed in claim 3, it is characterised in that: the transfer tube
(2) graphite annulus is greater than by high-temperature alloy material linear expansion coefficient.
5. a kind of universal joint high temperature and high pressure gas sealing device as claimed in claim 4, it is characterised in that: the adapter
Outer diameter circumferential direction aperture (112), tapping are located above becket, and open amount is 4~6, and opening connects ambient atmosphere, rise
To the purpose of heat dissipation.
6. a kind of universal joint high temperature and high pressure gas sealing device as claimed in claim 5, it is characterised in that: becket passes through
Rim of the mouth is interference fitted with adapter, and magnitude of interference is in 0.02~0.05mm.
7. a kind of universal joint high temperature and high pressure gas sealing device as claimed in claim 6, it is characterised in that: retainer ring is provided with two
A retainer ring hole, retainer ring hole are cut away a notch by a domain, are easily installed；Retainer ring is installed in switching seat slot, plays axial direction
The effect of positioning.
8. a kind of universal joint high temperature and high pressure gas sealing device as claimed in claim 7, it is characterised in that: transfer tube is by interior
Transfer tube (22) and outer transfer tube (21) are composed；Transfer tube China and foreign countries transfer tube (21) combined with graphite grazing in graphite annulus
Diameter interference fit, plays the role of sealing gas.
9. a kind of universal joint high temperature and high pressure gas sealing device as claimed in claim 8, it is characterised in that: interior transfer tube
(22) and outer transfer tube (21) is by welding, and the two is fixed together；Outer transfer tube (21) is with a thickness of 0.2mm, interior transfer tube
(22) with a thickness of 0.4mm.
10. a kind of universal joint high temperature and high pressure gas sealing device as claimed in claim 9, it is characterised in that: working method
For, when transmitting high temperature and high pressure gas, universal joint high temperature and high pressure gas sealing device heating expansion, transfer tube (2) by
High-temperature alloy material machine-shaping, linear expansion coefficient are greater than graphite annulus, therefore, at high temperature, outer transfer tube (21) and graphite annulus
The two magnitude of interference becomes larger, and plays the purpose for preventing gas from leaking；When generating angle change between outer transfer tube (21) and graphite annulus
Or when axial movement, that is, realizes turning turning function, can be guaranteed using the outer transfer tube (21) of circular arc spherical structure and stone
Proper motion while black ring inner wall keeps being bonded keeps fitting to realize sealing effect, and transfer tube (2) by graphite annulus inner wall
Can there be good protective action to poisonous and harmful and highly corrosive gas using high-temperature alloy material, and make lower than most
Under high-temperature magnitude of interference it is unlikely it is excessive cause stress concentration leads to the problem of intensity decline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910573277.6A CN110274102A (en) | 2019-06-28 | 2019-06-28 | A kind of universal joint high temperature and high pressure gas sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910573277.6A CN110274102A (en) | 2019-06-28 | 2019-06-28 | A kind of universal joint high temperature and high pressure gas sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110274102A true CN110274102A (en) | 2019-09-24 |
Family
ID=67963640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910573277.6A Pending CN110274102A (en) | 2019-06-28 | 2019-06-28 | A kind of universal joint high temperature and high pressure gas sealing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110274102A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4863200A (en) * | 1987-07-02 | 1989-09-05 | Societe Jacques Dubois | Flexible exhaust coupling |
| US5505498A (en) * | 1994-05-16 | 1996-04-09 | Eg&G Pressure Science, Inc. | Flexible pressure-energized joint |
| CN207555032U (en) * | 2017-11-09 | 2018-06-29 | 宇航航天装备有限公司 | A kind of multiple spot offset-type high temperature ball sealing structure |
| CN207750634U (en) * | 2018-01-02 | 2018-08-21 | 日照华泰纸业有限公司 | A kind of non-maintaining simple rotary spherical digester rotation vapour head |
| CN109237171A (en) * | 2018-11-15 | 2019-01-18 | 中国航发湖南动力机械研究所 | Deflectable pipeline seal switching device |
-
2019
- 2019-06-28 CN CN201910573277.6A patent/CN110274102A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4863200A (en) * | 1987-07-02 | 1989-09-05 | Societe Jacques Dubois | Flexible exhaust coupling |
| US5505498A (en) * | 1994-05-16 | 1996-04-09 | Eg&G Pressure Science, Inc. | Flexible pressure-energized joint |
| CN207555032U (en) * | 2017-11-09 | 2018-06-29 | 宇航航天装备有限公司 | A kind of multiple spot offset-type high temperature ball sealing structure |
| CN207750634U (en) * | 2018-01-02 | 2018-08-21 | 日照华泰纸业有限公司 | A kind of non-maintaining simple rotary spherical digester rotation vapour head |
| CN109237171A (en) * | 2018-11-15 | 2019-01-18 | 中国航发湖南动力机械研究所 | Deflectable pipeline seal switching device |
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Application publication date: 20190924 |