CN108131519B - A kind of rotation seal joint for the connection of high temperature and pressure motion tubes - Google Patents
A kind of rotation seal joint for the connection of high temperature and pressure motion tubes Download PDFInfo
- Publication number
- CN108131519B CN108131519B CN201711303825.0A CN201711303825A CN108131519B CN 108131519 B CN108131519 B CN 108131519B CN 201711303825 A CN201711303825 A CN 201711303825A CN 108131519 B CN108131519 B CN 108131519B
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- CN
- China
- Prior art keywords
- bulb
- ball seat
- high temperature
- keeping body
- sealing ring
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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
- 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
- F16L27/023—Universal and rotating joints
Abstract
The present invention proposes a kind of rotation seal joint for the connection of high temperature and pressure motion tubes, including ball seat and and bulb, sealing ring, extrusion ring, keeping body, housing screw and circlip with axially extending bore with axially extending bore；Sealing ring uses compressibility and the very high high-temperature flexible graphite material of resilience, the phenomenon that guaranteeing the reliable sealing in temperature alternating, and impregnating the processing of high temperature resistant synthetic lubricant fluid, improve bulb surface adhering and sealing material, coefficient of friction is reduced simultaneously, reduces turning moment；Keeping body inlays leaching antimony graphite ring structure using metallic matrix, increases the bearing capacity of high temperature heavy load surface of friction pair between bulb and keeping body, reduces coefficient of friction, prolongs the service life；Using the method for opening up longitudinal oil-way, increase contact surface oil storage capacity, so that retaining ring and the mating surface of bulb are lubricated well, reduce moment of friction, improve bearing capacity, and sealing surface and stress support friction pair are lubricated using high temperature non-ignitable protective grease, reduce contact surface abrasion.
Description
Technical field
The present invention relates to a kind of rotation seal joint, can be used for connection between the high-temperature and pressure pipeline of two relative motions and
Bit shift compensation under high temperature between two pipelines, while can guarantee the stringent sealing of fluids within pipes.
Background technique
The high-temperature and pressure pipeline of relative motion is widely applied to groove type solar photo-thermal power generation factory, chemical industry, tobacco, petroleum etc.
Industry.Pipeline need in the case of a relative movement realize manage in high-temperature, high pressure fluid reliable sealing, while each high-temperature pipe it
Between due to the temperature difference it is big caused by be displaced and also to eliminate.Connection between current each pipeline is all made of the rotation only to rotate in a circumferential direction and connects
Head is mended as the element for realizing relative motion, using metal hose or bellows as the displacement due to caused by high temperature between pipeline
Repay element.
Since working life demands of the industries such as groove type solar photo-thermal power generation factory, chemical industry, tobacco, petroleum to pipeline are high,
When being connected using metal hose or bellows as pipeline, fatigue life is lower, it is difficult to guarantee that the long-time between pipeline can
By work.
By taking groove type solar photo-thermal power generation factory as an example.Groove type solar photo-thermal power generation be it is a kind of using thermal-collecting tube solar energy
It gathers together, heat exchange working medium is heated to hundreds of degrees Celsius of high temperature, steamed by the overheat that heat exchanger generates high temperature and pressure
Vapour, driving steam turbine and the technology for driving electrical power generators.In trough type solar power generation factory Jing Chang arrangement, solar thermal collector
Combination (Solar Collector Assemblies, abbreviation SCA) includes reflecting mirror, bracket, evacuated collector tube and tracker,
Axis routinely uses North and South direction to arrange, every 4 SCA constitute 1 circuit.SCA from morning to night, from east orientation west tracks the sun, i.e.,
Under normal operation, condenser is in regular motion state always, and other equipment and pipeline (such as conduction oil main pipe
Deng) it is all relatively fixed arrangement, this just needs the positions such as SCA and conduction oil main pipe junction must installation connecting element.In addition, true
Empty set heat pipe is from environment temperature to operating temperature or in opposite temperature changing process, linearly expanding with heat and contract with cold between each thermal-collecting tube
It is also required to connector and realizes bit shift compensation.
Currently, conduit operating temperature in groove type solar solar-thermal generating system is daily in 30 DEG C to 400 DEG C ranges,
Operating pressure belongs to the working environment of high/low temperature alternation, high-low pressure alternation in 0.2MPa to 2MPa range.And in pipeline
Heat exchange working medium belongs to harmful substance, to eyes, the irritating effect of mucous membrane, meets flammable when open fire and high fever body, is entirely working
It is not allow for any leakage in the process, thus air-proof condition is harsh.In addition to this, the service life of general solar light-heat power-generation factory is super
Spend 20 years, it is desirable that pipeline and connector can guarantee entire life cycle, therefore long-life, high/low temperature alternation, high-low pressure alternation work
Piping connection problem under condition becomes one of the chief technology for restricting groove type solar photo-thermal power generation technology.
Summary of the invention
To solve the connectivity problem under high temperature and high pressure environment between two opposite motion tubes, the phase of high-temperature and pressure pipeline is realized
Piping displacement caused by moving and eliminating because of high temperature, while guaranteeing when high temperature fluid works long hours under high pressure in pipeline
Stringent leakproofness, the present invention propose a kind of rotation seal joint for the connection of high temperature and pressure motion tubes.
The technical solution of the present invention is as follows:
A kind of rotation seal joint for the connection of high temperature and pressure motion tubes, the ball seat including having axially extending bore
With the bulb for having axially extending bore；
It is characterized by:
It further include sealing ring, extrusion ring, keeping body, housing screw and circlip；
If arterial highway sealing ring is packed into ball seat, and is initially dismountable clearance fit between ball seat；Bulb is packed into ball
In seat, clearance fit is initially between bulb and sealing ring；Extrusion ring is packed into ball seat, and is clearance fit between ball seat, is squeezed
Pressure ring can act axially on sealing ring to compress sealing ring；Keeping body is packed into ball seat, and is between keeping body and ball seat
It is threadedly coupled；Housing screw is packed into keeping body, and axial compression extrusion ring, so that elastic-plastic deformation occurs for sealing ring, is close to close
Cover realizes that bulb and ball seat seal；Circlip is packed into ball seat, limits the axial movement of keeping body；
The sealing ring uses high-temperature flexible graphite material, and impregnates the processing of high temperature resistant synthetic lubricant fluid；
The keeping body inlays leaching antimony graphite ring structure using metallic matrix；Between the metallic matrix and bulb of keeping body
It is inlaid with leaching antimony graphite annulus, leaching antimony graphite annulus is contacted and carried with bulb surface.
Further preferred embodiment, a kind of rotation seal joint for the connection of high temperature and pressure motion tubes are special
Sign is: being provided with several oil-ways on leaching antimony graphite annulus, is filled with the non-ignitable protective grease of high temperature in oil groove.
Further preferred embodiment, a kind of rotation seal joint for the connection of high temperature and pressure motion tubes are special
Sign is: the angle of oil-way and keeping body end face is 30 °.
Beneficial effect
Rotation seal joint structure proposed by the present invention can satisfy stringent close under high/low temperature, high-low pressure alternation operating condition
Feng Xing, while it being able to achieve the relative motion of high-temperature and pressure pipeline, solve the movement connectivity problem between high-temperature and pressure pipeline.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1: rotation seal joint functional schematic；
Fig. 2: rotation seal joint general structure schematic diagram；
Fig. 3: keeping body component diagram；
Fig. 4: Fig. 3 A-A cross-sectional view；
Fig. 5: keeping body component oil storage tank schematic diagram
Wherein: 1. pipelines；2. rotation seal joint；3. ball seat；4. bulb；5. sealing ring；6. extrusion ring；7. keeping body；
8. housing screw；9. circlip；10. keeping body；11. inlaying graphite.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
As shown in Fig. 2, part 3 is ball seat, plays fixing seals, limitation bulb axial displacement and sealing material is prevented to be lost
Effect.Part 4 is bulb, is formed relatively with 3 ball seat of part, and can realize that the displacement of pipeline caused by high temperature is mended by relative motion
It repays.Part 5 is sealing ring, selects packing seal that it is close to generate to compress sealing surface by flexible deformation as main seal form
Seal effect.Part 6 is extrusion ring, and effect is uniformly to be transmitted to the power of screw on sealing ring, promotes sealing ring deformation and realizes
Sealing.Part 7 is keeping body, acts the screw for limiting bulb axial movement, support compression sealing material, while also to sphere
Rotation angle rise position-limiting action.Part 8 is housing screw, and main function is to provide certain pretightning force for sealing material to make to seal
Elastic-plastic deformation occurs for material.Part 9 is circlip, and effect is to limit keeping body axially movable.
Two seals ring 5 is packed into ball seat 3, dismountable clearance fit is initially between sealing ring 5 and ball seat 3；Bulb 4
It is packed into ball seat 3, is initially clearance fit between bulb 4 and sealing ring 5；Extrusion ring 6 is packed into ball seat 3, extrusion ring 6 and ball seat 3 it
Between be clearance fit, extrusion ring 6 acts on sealing ring 5 to compress sealing ring 5；Keeping body 8 is packed into ball seat 3, keeping body 8 and ball
To be threadedly coupled between seat 3, threaded connection plays coarse positioning and prevents keeping body 8 from rotating in a circumferential direction；Housing screw 7, which is packed into, to be protected
Body 8 is held, extrusion ring 6 is compressed, makes sealing ring 5 that elastic-plastic deformation occur by pressing force, is close to sealing surface and realizes sealing；Elasticity
Retaining ring 9 is packed into ball seat 3, limits the axial movement of keeping body 8, and guarantees the gap between keeping body 8 and bulb 4.
Key of the invention are as follows:
1) relative motion is realized using spherical structure, using packing seal as seal form, using compressibility and rebound
Main material of the very high high-temperature flexible graphite material of property as 5 sealing element of part, guarantees reliable close in temperature alternating
Envelope, and dipping high temperature resistant synthetic lubricant fluid processing is carried out to soft graphite, improve showing for 4 bulb surface adhering and sealing material of part
As, while coefficient of friction is reduced, reduce turning moment.
2) method that leaching antimony graphite annulus is inlayed using metallic matrix, increases high temperature heavy load between 4 bulb of part and 7 keeping body of part
The bearing capacity of surface of friction pair reduces coefficient of friction, prolongs the service life；Using the method for opening up longitudinal oil-way, increase
Adjunction contacting surface oil storage capacity reduces moment of friction, improves so that retaining ring and the mating surface of bulb are lubricated well
Bearing capacity, and sealing surface and stress support friction pair are lubricated using high temperature non-ignitable protective grease, reduce contact
Surface wear.As shown in Figure 3, Figure 4.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (3)
1. a kind of rotation seal joint for the connection of high temperature and pressure motion tubes, ball seat and band including having axially extending bore
There is the bulb of axially extending bore；
It is characterized by:
It further include sealing ring, extrusion ring, keeping body, housing screw and circlip；
If arterial highway sealing ring is packed into ball seat, and is initially dismountable clearance fit between ball seat；Bulb is packed into ball seat,
Clearance fit is initially between bulb and sealing ring；Extrusion ring is packed into ball seat, and is clearance fit, extrusion ring energy between ball seat
It enough acts axially on sealing ring to compress sealing ring；Keeping body is packed into ball seat, and is connected between keeping body and ball seat for screw thread
It connects；Housing screw is packed into keeping body, and axial compression extrusion ring, so that elastic-plastic deformation occurs for sealing ring, it is real to be close to sealing surface
Existing bulb and ball seat seal；Circlip is packed into ball seat, limits the axial movement of keeping body；
The sealing ring uses high-temperature flexible graphite material, and impregnates the processing of high temperature resistant synthetic lubricant fluid；
The keeping body inlays leaching antimony graphite ring structure using metallic matrix；It is inlayed between the metallic matrix and bulb of keeping body
There is leaching antimony graphite annulus, leaching antimony graphite annulus is contacted and carried with bulb surface.
2. a kind of rotation seal joint for the connection of high temperature and pressure motion tubes according to claim 1, it is characterised in that:
It is provided with several oil-ways on leaching antimony graphite annulus, is filled with the non-ignitable protective grease of high temperature in oil-way.
3. a kind of rotation seal joint for the connection of high temperature and pressure motion tubes according to claim 2, it is characterised in that:
Oil-way and the angle of keeping body end face are 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711303825.0A CN108131519B (en) | 2017-12-11 | 2017-12-11 | A kind of rotation seal joint for the connection of high temperature and pressure motion tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711303825.0A CN108131519B (en) | 2017-12-11 | 2017-12-11 | A kind of rotation seal joint for the connection of high temperature and pressure motion tubes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108131519A CN108131519A (en) | 2018-06-08 |
| CN108131519B true CN108131519B (en) | 2019-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711303825.0A Active CN108131519B (en) | 2017-12-11 | 2017-12-11 | A kind of rotation seal joint for the connection of high temperature and pressure motion tubes |
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| Country | Link |
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| CN (1) | CN108131519B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028615A (en) * | 2018-06-26 | 2018-12-18 | 华电电力科学研究院有限公司 | A kind of disc type solar energy collecting system and heat collecting method |
| CN112594463B (en) * | 2020-12-31 | 2023-04-14 | 中国建筑标准设计研究院有限公司 | Universal ball head connecting structure |
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|---|---|---|---|---|
| JP2773103B2 (en) * | 1994-12-19 | 1998-07-09 | 重雄 川崎 | Pipe fittings |
| CN2921525Y (en) * | 2006-06-22 | 2007-07-11 | 宁波万里管道有限公司 | Non-resistance rotary joint compensator |
| CN101021293A (en) * | 2007-03-19 | 2007-08-22 | 卢秉威 | Sealed ball shape compensating device |
| CN201973391U (en) * | 2011-03-14 | 2011-09-14 | 江苏宏鑫旋转补偿器科技有限公司 | High-pressure-resistant rotary compensator capable of rotating flexibly |
| CN102818082A (en) * | 2012-09-05 | 2012-12-12 | 江苏腾旋科技股份有限公司 | High-pressure joint connector |
| CN203010058U (en) * | 2012-12-18 | 2013-06-19 | 江苏福吉特管业有限公司 | Universal straight-through pipe joint |
| CN103672244A (en) * | 2012-08-30 | 2014-03-26 | 益科博能源科技（上海）有限公司 | Multi-directional spherical surface sealing and rotating connector |
| CN106145948A (en) * | 2015-04-27 | 2016-11-23 | 九格能源科技（天津）有限公司 | A kind of oxidation-resistant graphite sealing ring |
| CN205956603U (en) * | 2016-07-01 | 2017-02-15 | 北京市京球节能新技术有限公司 | Dual spring self -interacting spheroid rotary joint |
-
2017
- 2017-12-11 CN CN201711303825.0A patent/CN108131519B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2773103B2 (en) * | 1994-12-19 | 1998-07-09 | 重雄 川崎 | Pipe fittings |
| CN2921525Y (en) * | 2006-06-22 | 2007-07-11 | 宁波万里管道有限公司 | Non-resistance rotary joint compensator |
| CN101021293A (en) * | 2007-03-19 | 2007-08-22 | 卢秉威 | Sealed ball shape compensating device |
| CN201973391U (en) * | 2011-03-14 | 2011-09-14 | 江苏宏鑫旋转补偿器科技有限公司 | High-pressure-resistant rotary compensator capable of rotating flexibly |
| CN103672244A (en) * | 2012-08-30 | 2014-03-26 | 益科博能源科技（上海）有限公司 | Multi-directional spherical surface sealing and rotating connector |
| CN102818082A (en) * | 2012-09-05 | 2012-12-12 | 江苏腾旋科技股份有限公司 | High-pressure joint connector |
| CN203010058U (en) * | 2012-12-18 | 2013-06-19 | 江苏福吉特管业有限公司 | Universal straight-through pipe joint |
| CN106145948A (en) * | 2015-04-27 | 2016-11-23 | 九格能源科技（天津）有限公司 | A kind of oxidation-resistant graphite sealing ring |
| CN205956603U (en) * | 2016-07-01 | 2017-02-15 | 北京市京球节能新技术有限公司 | Dual spring self -interacting spheroid rotary joint |
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| Publication number | Publication date |
|---|---|
| CN108131519A (en) | 2018-06-08 |
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