CN108131519A - 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
- CN108131519A CN108131519A CN201711303825.0A CN201711303825A CN108131519A CN 108131519 A CN108131519 A CN 108131519A CN 201711303825 A CN201711303825 A CN 201711303825A CN 108131519 A CN108131519 A CN 108131519A
- Authority
- CN
- China
- Prior art keywords
- bulb
- ball seat
- high temperature
- keeping body
- sealing ring
- 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.)
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Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The present invention proposes a kind of rotation seal joint for the connection of high temperature and pressure motion tubes, ball seat and and bulb, sealing ring, extrusion ring, keeping body, housing screw and circlip with axially extending bore including carrying axially extending bore；Sealing ring is using the very high high-temperature flexible graphite material of compressibility and resilience, the phenomenon that ensureing the reliable sealing in temperature alternating, and impregnating the processing of high temperature resistant synthetic lubricant fluid, improve bulb surface adhering and sealing material, friction coefficient 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 friction coefficient, 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, available for the connection between the high-temperature and pressure pipeline of two relative motions and
Bit shift compensation under high temperature between two pipelines, while can ensure the stringent sealing of fluids within pipes.
Background technology
The high-temperature and pressure pipeline of relative motion is widely applied to groove type solar photo-thermal power generation factory, chemical industry, tobacco, oil etc.
Industry.Pipeline need in the case of a relative movement realize pipe in high-temperature, high pressure fluid reliable sealing, while each high-temperature pipe it
Between due to the temperature difference greatly caused by displacement also to eliminate.Connection between current each pipeline is connect using the rotation only to rotate in a circumferential direction
Head is mended as the element for realizing relative motion using metal hose or bellows as the displacement caused by high temperature between pipeline
Repay element.
Since the industries such as groove type solar photo-thermal power generation factory, chemical industry, tobacco, oil are high to the working life demands of pipeline,
When being connected using metal hose or bellows as pipeline, fatigue life is relatively low, it is difficult to ensure 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 is a kind of utilization thermal-collecting tube solar energy
It gathers together, heat exchange working medium is heated to hundreds of degrees Celsius of high temperature, the overheat that high temperature and pressure is generated by heat exchanger is steamed
Vapour, driving steam turbine and the technology for driving electrical power generators.In trough type solar power generation factory Jing Chang arrangements, solar thermal collector
Combination (Solar Collector Assemblies, abbreviation SCA) includes speculum, stent, evacuated collector tube and tracker,
Axis routinely arranges that every 4 SCA form 1 circuit using North and South direction.SCA from morning to night, from east orientation west tracks the sun, i.e.,
Under normal operation, concentrator is always in regular motion state, and miscellaneous equipment and pipeline (such as conduction oil main pipe
Deng) all it is to be relatively fixed arrangement, this just needs the positions such as SCA and conduction oil main pipe junction must installation connecting element.It is 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.
At present, the 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 ranges.And in pipeline
Heat exchange working medium belongs to harmful substance, there is stimulation to eyes, 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 surpasses
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
Pipeline connectivity problem under condition becomes one of chief technology for restricting groove type solar photo-thermal power generation technology.
Invention content
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
To moving and eliminating the piping displacement caused by high temperature, while ensure 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 scheme is that：
A kind of rotation seal joint for the connection of high temperature and pressure motion tubes, the ball seat including carrying axially extending bore
With the bulb with axially extending bore；
It is characterized in that：
Further include sealing ring, extrusion ring, keeping body, housing screw and circlip；
If arterial highway sealing ring is packed into ball seat, and dismountable clearance fit is initially 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 is sealed with ball seat；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
Leaching antimony graphite annulus is inlaid with, 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：Several oil-ways are provided on leaching antimony graphite annulus, the non-ignitable protective grease of high temperature is filled 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：Oil-way and the angle of keeping body end face are 30 °.
Advantageous effect
Rotation seal joint structure proposed by the present invention disclosure satisfy that stringent close under high/low temperature, high-low pressure alternation operating mode
Feng Xing, while can realize the relative motion of high-temperature and pressure pipeline, solve the movement connectivity problem between high-temperature and pressure pipeline.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
It obtains significantly or is recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Significantly and it is readily appreciated that, wherein：
Fig. 1：Rotation seal joint functional schematic；
Fig. 2：Rotation seal joint general structure schematic diagram；
Fig. 3：Keeping body component diagram；
Fig. 4：The A-A sectional views of Fig. 3；
Fig. 5：Keeping body component oil storage tank schematic diagram
Wherein：1. pipeline；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. inlay graphite.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining 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 ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instructions such as needle ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
The description present invention and simplified description rather than instruction imply that signified device or element must be with specific orientation, Yi Te
Fixed azimuth configuration 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 prevent what sealing material was lost in
Effect.Part 4 is bulb, is formed relatively with 3 ball seat of part, and can be mended by the displacement of pipeline caused by relative motion realization high temperature
It repays.Part 5 is sealing ring, and packing seal is selected, by flexible deformation, it is close so as to generate to compress sealing surface 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, play a part of to limit bulb axial movement, support compression sealing material screw, 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 sealing
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
Ball seat 3 is packed into, clearance fit is initially 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 for 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, compresses extrusion ring 6, by pressing force so that elastic-plastic deformation occurs for sealing ring 5, is close to sealing surface and realizes sealing；Elasticity
Baffle ring 9 is packed into ball seat 3, limits the axial movement of keeping body 8, and ensures the gap between keeping body 8 and bulb 4.
The present invention key be：
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, ensures in the reliable close of temperature alternating
Envelope, and the synthetic lubricant fluid processing of dipping high temperature resistant is carried out to soft graphite, improve showing for 4 bulb surface adhering and sealing material of part
As, while friction coefficient is reduced, reduce turning moment.
2) method of leaching antimony graphite annulus is inlayed using metallic matrix, increases high temperature heavy load between 7 keeping body of 4 bulb of part and part
The bearing capacity of surface of friction pair reduces friction coefficient, prolongs the service life；Using the method for opening up longitudinal oil-way, increase
Adjunction contacting surface oil storage capacity so that retaining ring and the mating surface of bulb are lubricated well, are reduced moment of friction, are improved
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 impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art are not departing from the principle of the present invention and objective
In the case of can make changes, modifications, substitutions 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 carrying axially extending bore
There is the bulb of axially extending bore；
It is characterized in that：
Further include sealing ring, extrusion ring, keeping body, housing screw and circlip；
If arterial highway sealing ring is packed into ball seat, and dismountable clearance fit is initially 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 between ball seat, extrusion ring energy
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, is close to sealing surface reality
Existing bulb is sealed with ball seat；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：
Several oil-ways are provided on leaching antimony graphite annulus, the non-ignitable protective grease of high temperature is filled in oil groove.
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 true CN108131519A (en) | 2018-06-08 |
| CN108131519B CN108131519B (en) | 2019-05-31 |
Family
ID=62389383
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108131519B (en) |
Cited By (3)
| 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 |
| CN111442146A (en) * | 2020-04-28 | 2020-07-24 | 德安福(天津)汽车技术有限公司 | Can realize mechanical type sealed mouth of pipe structure repeatedly |
| CN112594463A (en) * | 2020-12-31 | 2021-04-02 | 中国建筑标准设计研究院有限公司 | Universal ball head connecting structure |
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 |
| 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 |
Cited By (3)
| 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 |
| CN111442146A (en) * | 2020-04-28 | 2020-07-24 | 德安福(天津)汽车技术有限公司 | Can realize mechanical type sealed mouth of pipe structure repeatedly |
| CN112594463A (en) * | 2020-12-31 | 2021-04-02 | 中国建筑标准设计研究院有限公司 | Universal ball head connecting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108131519B (en) | 2019-05-31 |
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