CN107143707A - Butt sealing formula high temperature pipe and dock swivel joint - Google Patents
Butt sealing formula high temperature pipe and dock swivel joint Download PDFInfo
- Publication number
- CN107143707A CN107143707A CN201710527864.2A CN201710527864A CN107143707A CN 107143707 A CN107143707 A CN 107143707A CN 201710527864 A CN201710527864 A CN 201710527864A CN 107143707 A CN107143707 A CN 107143707A
- Authority
- CN
- China
- Prior art keywords
- high temperature
- sealing
- temperature pipe
- formula high
- connecting tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
-
- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
-
- 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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
Abstract
The invention discloses a kind of Butt sealing formula high temperature pipe, including connecting tube and the metal bellows that is fixedly connected with described connecting tube, and it is fixedly installed on the sealing ring of wavy metal tube end.The dock sealing high temperature pipe of the present invention, using metal bellows as connecting and storing power part, attachment structure is simple, can effectively bear high temperature, realize the purpose of rotatory sealing.
Description
Technical field
The present invention relates to photo-thermal electro-technical field, more particularly to a kind of Butt sealing formula high temperature pipe and dock rotation connect
Head.
Background technology
It is to be gathered solar radiation by tracking the linear parabolic mirror of solar motion that solar energy paraboloid trough type, which generates electricity,
Collect the technology that heat-transfer fluid is generated electricity that heated in the endothermic tube at parabola focal line.The key of slot type power station heat collecting field
Equipment mainly includes heat collector, endothermic tube and thermal storage device etc..It is the core of heat collector day by day to drive tracking system, is photo-thermal collection
Device makes full use of the guarantee of solar energy.By driving tracking system, photo-thermal collector can track the sun from sunrise to sunset.Rotation
Adapter is then that thermal-collecting tube is connected an essential part with fixed system pipeline, by using swivel joint, Ke Yiyan
The service life of long connection flexible pipe, the risk that reduction fused salt pipeline is leaked.
At present, traditional swivel joint is made up of parts such as inner and outer pipes, bearing, sealing ring and elastomers.Swivel joint makes
Used time, first fixed termination is connected with connecting line using screw thread or flange, then rotary joint rotating part is relied on into housing, axle
Hold, the component such as sealing ring is docked with anchor tip.When swivel joint works, the bearing being fixed between joint body inner and outer pipes can
Rotating against for anchor tip and swivel joint is realized, the sealing ring of bearing both sides keeps apart bearing with inner tube working media,
Sealed effect is reached simultaneously, and under the occasion that sealing property requires higher, elastomer is installed in sealing ring side more
Sealing ring axial force is supplied to, to improve sealing ring frictional force, and then improves sealing property.But, in high temperature, acid and alkali corrosion etc.
In complicated and severe working environment, the heat resistance of each assembly material is different with expansion and contraction so that poor sealing, soda acid sex work
Medium, which enters in bearing, causes clamping stagnation, corrosion and secondary leakage.
The content of the invention
In view of the technical drawbacks of the prior art, it is an object of the present invention to provide a kind of Butt sealing formula high temperature pipe
And dock swivel joint.
To realize that the technical scheme that the purpose of the present invention is used is：
A kind of Butt sealing formula high temperature pipe, including connecting tube and the metal bellows that is fixedly connected with described connecting tube,
And it is fixedly installed on the sealing ring of wavy metal tube end.
Described sealing ring is corresponding plane, domatic or cambered surface sealing pair.
Connecting tube is welded with metal bellows, and sealing ring is welded with described metal bellows.
The material of described sealing ring is hard alloy.
The length of metal bellows is in 30-80mm.
The rigidity of metal bellows is more than 100N/mm.
Adpting flange is provided with described connecting tube.
A kind of dock swivel joint, including the Butt sealing formula high temperature pipe described in two, and adapter sleeve, described company
Female connector is connected with described connecting tube and docks the seal ring seal described in two respectively.
Compared with prior art, the beneficial effects of the invention are as follows：
The dock sealing high temperature pipe of the present invention, using metal bellows as connecting and storing power part, attachment structure is simple
It is single, high temperature can be effectively born, the purpose of rotatory sealing is realized.
Certain length and the gold of rigidity is respectively welded in the fixation termination of swivel joint and rotating end joint in the present invention
Belong to bellows, and high-abrasive material sealing ring is welded again in the other end of metal bellows, after the completion of swivel joint assembling, sealing ring
Dock and bellows is had certain decrement, and then by stroke after thermal expansion effectively using there is provided in sealing contact required
Axial pre tightening force, while the working space of the rotary components such as working media and bearing is independent.That is, it is directly close using pipeline
The structure type of docking is sealed, dependence of the components such as bearing to sealing property is eliminated；Under high-temperature work environment, wavy metal
Pipe not only can absorb the stroke of pipeline in swivel joint, and then increases the decrement of bellows, and hot environment is positively utilized
Under the stroke of each assembly material improve sealing property, more to improve assembling structure, to eliminate the components such as bearing in soda acid work
Make the dependence to sealing property in medium.
Brief description of the drawings
Fig. 1 show the structural representation of Butt sealing formula high temperature pipe；
Fig. 2 show the structural representation of the dock swivel joint of the present invention；
Fig. 3 show the reserved notch schematic diagram of the first adapter sleeve.
Fig. 4 show sealing ring and docks the first schematic diagram.
Fig. 5 show sealing ring and docks the second schematic diagram.
Fig. 6 show sealing ring and docks the 3rd schematic diagram.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
As illustrated, the Butt sealing formula high temperature pipe of the present invention includes connecting tube 11 and fixed with described connecting tube 11 to connect
The metal bellows 12 connect, and it is fixedly installed on the sealing ring 13 of wavy metal tube end.
The metal bellows material is made up of high temperature resistant stainless steel, such as 304H, and the wall thickness thickness of metal bellows is in 0.6-
1mm, such as 0.8mm, pitch is in 8-12mm, such as 10mm, and bulk metal Bellows Length is in 30-80mm, and wavy metal pipe stiffness is big
Belong to elastic deformation in being stretched in 100N/mm, range in stiffness, no fatigue influence can meet and use for a long time, wavy metal pipe range
Degree is relevant with calculating required decrement, and sealing ring material is hard alloy, e.g., Si Taili stainless steels, and metal bellows is with being connected
Being fixedly connected for pipe is realized using specialty welding.
The dock sealing high temperature pipe of the present invention, using metal bellows as connecting and storing power part, attachment structure is simple
It is single, high temperature can be effectively born, the purpose of rotatory sealing is realized.
Specifically, for ease of integrated connection, be provided with the middle part of described connecting tube 11 adpting flange 14 with clamping
Set, the first adapter sleeve is fixedly connected as described below, and the outer end of connecting tube is additionally provided with end adpting flange to be connected to
Whole pipeline.The end of connecting tube is provided with flange 15 simultaneously, while being provided with flange in the end of connecting tube
15, connected by flange, can guarantee that preferable axiality.
Wherein, there be part connection pipeline section the inner side of described adpting flange 14, the end of the connection pipeline section on the inside of this and the
One metal bellows is welded, for enhancing bonding area, and the internal diameter at the end is identical with overall connecting tube, and preferably the section is selected
The larger design of wall thickness, so also improves assembling, can load centering during adapter sleeve now, the design of the second connecting tube with it is such
Seemingly, description is not deployed herein.
Meanwhile, the invention also discloses a kind of dock swivel joint, including the Butt sealing formula high temperature pipe described in two,
And adapter sleeve, described adapter sleeve be connected respectively with described connecting tube and by described in two seal ring seal dock.
Certain length and the metal wave of rigidity is respectively welded in the fixation termination of swivel joint and rotating end joint
Line pipe, and high-abrasive material sealing ring is welded again in the other end of metal bellows, after the completion of swivel joint assembling, sealing ring docking
And bellows is had certain decrement, and then by stroke after thermal expansion effectively using there is provided to required axial direction in sealing contact
Pretightning force, while the working space of the rotary components such as working media and bearing is independent.That is, directly sealed using pipeline pair
The structure type connect, eliminates dependence of the components such as bearing to sealing property；Under high-temperature work environment, metal bellows is not
The stroke of pipeline in swivel joint is only can absorb, and then increases the decrement of bellows, is positively utilized under hot environment each
The stroke of assembly material improves sealing property, more to improve assembling structure, is situated between with eliminating the components such as bearing and being worked in soda acid
To the dependence of sealing property in matter.
The present invention is expanded on further in the description by specific embodiment below, specific embodiment of the invention includes docking
Formula swivel joint includes,
First joint, it includes the first connecting tube 11 and the first metal wave being fixedly connected with the first described connecting tube 11
Line pipe 12, and it is fixedly installed on the first sealing ring 13 of the first wavy metal tube end,
Second joint, it includes the second connecting tube 21 and the second wavy metal being fixedly connected with the second described connecting tube
Pipe 22, and it is fixedly installed on the second sealing ring 23 of the second wavy metal tube end,
The connection sleeve of stainless steel, it includes being fixedly connected with the first described connecting tube and allows described the
The first adapter sleeve 31 that one metal bellows is inserted, is fixedly connected and can with the first adapter sleeve with the second described connecting tube
Second adapter sleeve 32 of rotatable connection, described the second metal bellows through the second described adapter sleeve and makes first close between two parties
Seal ring and the docking of the second seal ring seal.Described the first connecting tube and the second connecting tube is that the Butt sealing formula of the present invention is high
Wen Guan.
Wherein, be to ensure overall sealing effectiveness, after mounting under normal temperature the first sealing ring and the second sealing interannular pressure
Press it is strong larger, typically in 2Mpa or more, when high-temperature molten salt is flowed through in inside, during such as 580 DEG C of high-temperature molten salts, two sealing interannulars
More than pressure can reach 4Mpa even.
The present invention is connected by connecting tube with exterior line, is such as connected with heat storage can loop or thermal-collecting tube, while two
The opposite end of individual connecting tube is fixedly installed, such as welded joints seal circle, then using connecting sleeve by the first joint and second
Joint axially position but it is rotatably connected and two sealing rings is constituted with inside extruding, is tightly connected using sealing ring extruding composition
The rotary type for forming this pipeline is tightly connected.
Further, described sealing ring is corresponding plane, domatic or cambered surface sealing pair.I.e. described sealing ring has three
Plant structure：The first is plane sealing structure, that is, it is that plane docks form to contact sealing surface；Second is conical surface sealing structure,
I.e. contact sealing surface is cone match form；The third is ball face sealing structure, that is, contacts sealing surface and match somebody with somebody for convex annular, concave spherical surface
Conjunction form, the obverse design of sealing ring, along with sealing ring after flexible bellow welding with, from centering, even more improving
Seal the frictional force and sealing property of loop interface.
Further, to prevent from gathering in adapter sleeve after leakage at sealing, described connection sleeve, such as the first connection
It is enclosed on described sealing joint and is formed with atria 33, described atria is formed with discharge port.Specifically, described first
Adapter sleeve includes the reduced diameter section and enlarged diameter section being coaxially disposed, and described enlarged diameter section end is formed with inner stopper, described
Second adapter sleeve can be rotatably set at the opening of larger diameter end by swivel bearing.
First adapter sleeve is designed using reducing type, and the rotatable axis for realizing two adapter sleeves using inner stopper is located by connecting,
Specifically, the attachment structure includes being arranged on the rolling bearing 41 of two connection inner rooms, and bearing neck bush 42 is arranged on rolling bearing
The bearing external bushing 43 in outside, is connected to position described bearing external bushing outer surface outer ring with the first described adapter sleeve
Hole back-up ring 44, and be connected with the second described adapter sleeve to position the axle of described axial outer bearing sleeve outer surface inner ring
With back-up ring 45, using two back-up rings, the stability and resistance to pressure of adapter sleeve connection is effectively ensured.
Further, bearing is constituted for the fused salt that avoids leakage influences, described atria by the first adapter sleeve platform
Shoulder and the spacer ring 34 being fixedly connected with described enlarged diameter section are constituted, and the second described adapter sleeve is formed with bulge loop inwardly projectingly
24, described spacer ring is held in bulge loop outer surface.
The independent design of atria is realized using spacer ring using variable diameter design, fused salt is further reduced directly to bearing
Corrode, moreover, forming bulge loop corresponding with described spacer ring on the second adapter sleeve, the bulge loop and spacer ring composition are sealedly same
When, centering is also provided, the operational effect of rotary sleeve is improved.
Further, the second described adapter sleeve keeps spacing to reduce CONTACT WITH FRICTION area with described spacer ring, described
The second adapter sleeve medial surface on be formed with ring groove 25, the ring groove reduces the transmission of internal heat outwards, meanwhile, also
Heater can be set in described ring groove to reduce the temperature drop of junction.
Described above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of Butt sealing formula high temperature pipe, it is characterised in that the gold being fixedly connected including connecting tube and with described connecting tube
Belong to bellows, and be fixedly installed on the sealing ring of wavy metal tube end.
2. Butt sealing formula high temperature pipe as claimed in claim 1, it is characterised in that described sealing ring be corresponding plane,
Domatic or cambered surface sealing pair.
3. Butt sealing formula high temperature pipe as claimed in claim 1, it is characterised in that connecting tube is welded with metal bellows, close
Seal ring is welded with described metal bellows.
4. Butt sealing formula high temperature pipe as claimed in claim 1, it is characterised in that the material of described sealing ring is closed for hard
Gold.
5. Butt sealing formula high temperature pipe as claimed in claim 1, it is characterised in that the length of metal bellows is in 30-80mm.
6. Butt sealing formula high temperature pipe as claimed in claim 1, it is characterised in that the rigidity of metal bellows is more than 100N/
mm。
7. Butt sealing formula high temperature pipe as claimed in claim 1, it is characterised in that be provided with connection method in described connecting tube
It is blue.
8. a kind of dock swivel joint, including two the Butt sealing formula high temperature pipe as described in claim any one of 1-7, with
And adapter sleeve, described adapter sleeve be connected respectively with described connecting tube and by described in two seal ring seal dock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527864.2A CN107143707A (en) | 2017-06-30 | 2017-06-30 | Butt sealing formula high temperature pipe and dock swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527864.2A CN107143707A (en) | 2017-06-30 | 2017-06-30 | Butt sealing formula high temperature pipe and dock swivel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107143707A true CN107143707A (en) | 2017-09-08 |
Family
ID=59784962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710527864.2A Pending CN107143707A (en) | 2017-06-30 | 2017-06-30 | Butt sealing formula high temperature pipe and dock swivel joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107143707A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488824A (en) * | 2017-09-10 | 2019-03-19 | 甘肃光热发电有限公司 | Rotary joint and heat collecting field with the rotary joint |
| WO2019106450A1 (en) * | 2017-12-01 | 2019-06-06 | Meccanotecnica Umbra S.P.A. | Joint for high temperature fluid |
| ES2715513R1 (en) * | 2017-12-01 | 2019-07-19 | Umbra Meccanotecnica | High temperature fluid seal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20113861U1 (en) * | 2001-08-22 | 2002-01-24 | Brugg Rohrsysteme Gmbh | Connection between the end of a helically corrugated metal tube with a connector |
| CN202901627U (en) * | 2012-09-27 | 2013-04-24 | 山东飞越机械有限公司 | High temperature and high speed type rotary joint |
| CN203784521U (en) * | 2014-04-22 | 2014-08-20 | 山东飞越机械有限公司 | Rotating joint adopting elastic rubber-coated metal bellows compensator structure |
| CN105020509A (en) * | 2014-04-22 | 2015-11-04 | 山东飞越机械有限公司 | Rotary connector with elastic colloid coated metal bellows compensator structure |
| CN105135111A (en) * | 2015-10-13 | 2015-12-09 | 福建省闽旋科技股份有限公司 | Rotary joint applicable to cold and hot media |
| CN204942831U (en) * | 2015-08-20 | 2016-01-06 | 宇航航天装备有限公司 | A kind of D type swivel joint of end face ceramic seal |
| CN206918468U (en) * | 2017-06-30 | 2018-01-23 | 天津滨海设备配套技术有限公司 | Butt sealing formula high temperature pipe and dock swivel joint |
-
2017
- 2017-06-30 CN CN201710527864.2A patent/CN107143707A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20113861U1 (en) * | 2001-08-22 | 2002-01-24 | Brugg Rohrsysteme Gmbh | Connection between the end of a helically corrugated metal tube with a connector |
| CN202901627U (en) * | 2012-09-27 | 2013-04-24 | 山东飞越机械有限公司 | High temperature and high speed type rotary joint |
| CN203784521U (en) * | 2014-04-22 | 2014-08-20 | 山东飞越机械有限公司 | Rotating joint adopting elastic rubber-coated metal bellows compensator structure |
| CN105020509A (en) * | 2014-04-22 | 2015-11-04 | 山东飞越机械有限公司 | Rotary connector with elastic colloid coated metal bellows compensator structure |
| CN204942831U (en) * | 2015-08-20 | 2016-01-06 | 宇航航天装备有限公司 | A kind of D type swivel joint of end face ceramic seal |
| CN105135111A (en) * | 2015-10-13 | 2015-12-09 | 福建省闽旋科技股份有限公司 | Rotary joint applicable to cold and hot media |
| CN206918468U (en) * | 2017-06-30 | 2018-01-23 | 天津滨海设备配套技术有限公司 | Butt sealing formula high temperature pipe and dock swivel joint |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488824A (en) * | 2017-09-10 | 2019-03-19 | 甘肃光热发电有限公司 | Rotary joint and heat collecting field with the rotary joint |
| WO2019106450A1 (en) * | 2017-12-01 | 2019-06-06 | Meccanotecnica Umbra S.P.A. | Joint for high temperature fluid |
| ES2715513R1 (en) * | 2017-12-01 | 2019-07-19 | Umbra Meccanotecnica | High temperature fluid seal |
| US11384959B2 (en) | 2017-12-01 | 2022-07-12 | Meccanotecnica Umbra S.P.A. | Joint for high temperature fluid |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170908 |
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| RJ01 | Rejection of invention patent application after publication |