CN207349642U - High temperature rotary joint - Google Patents
High temperature rotary joint Download PDFInfo
- Publication number
- CN207349642U CN207349642U CN201720783736.XU CN201720783736U CN207349642U CN 207349642 U CN207349642 U CN 207349642U CN 201720783736 U CN201720783736 U CN 201720783736U CN 207349642 U CN207349642 U CN 207349642U
- Authority
- CN
- China
- Prior art keywords
- connector sleeve
- high temperature
- connecting tube
- rotary joint
- fixedly connected
- 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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- 238000007789 sealing Methods 0.000 claims abstract description 66
- 239000002184 metal Substances 0.000 claims abstract description 45
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 210000002837 heart atrium Anatomy 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000003032 molecular docking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- -1 304H Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a kind of high temperature rotary joint, including, first connector, it includes the first connecting tube and the first metal bellows being fixedly connected with first connecting tube, and it is arranged on the first sealing ring of the first wavy metal tube end, second connector, it includes the second connecting tube and the second metal bellows being fixedly connected with second connecting tube, and is arranged on the second sealing ring of the second wavy metal tube end.Certain length and the metal bellows of rigidity is respectively welded in the anchor tip and swivel joint joint of the swivel joint of the utility model, and wear-resistant material sealing ring is welded again in the other end of metal bellows, after the completion of swivel joint assembling, sealing ring docks and bellows is had certain decrement, and then stroke after thermal expansion is efficiently used, required axial pre tightening force in sealing contact is supplied to, at the same the working space of the rotary components such as working media and bearing is independent.
Description
Technical field
Photo-thermal electro-technical field is the utility model is related to, more particularly to a kind of high temperature rotary joint.
Background technology
The power generation of solar energy paraboloid trough type is to be gathered solar radiation by tracking the linear parabolic mirror of solar motion
Collect and the technology that heat-transfer fluid generates electricity is 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, reduces the risk that fused salt pipeline leaks.
At present, traditional swivel joint is made of parts such as inner and outer pipes, bearing, sealing ring and elastomers.Swivel joint makes
Used time, first uses screw thread or flanged joint by fixed end and connecting line, then by rotary joint rotating part by housing, axis
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
Realize rotating against for anchor tip and swivel joint, the sealing ring of bearing both sides keeps apart bearing and inner tube working media,
Reach the effect of sealing at the same time, and under the more demanding occasion of sealing performance, 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 performance.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.
Utility model content
The purpose of this utility model is to be directed to technological deficiency existing in the prior art, and provides a kind of High Temperature Rotating and connect
Head.
Technical solution is used by realize the purpose of this utility model：
A kind of high temperature rotary joint, including,
First connector, it includes the first connecting tube and the first wavy metal being fixedly connected with first connecting tube
Pipe, and the first sealing ring of the first wavy metal tube end is arranged on,
Second connector, it includes the second connecting tube and the second wavy metal being fixedly connected with second connecting tube
Pipe, and the second sealing ring of the second wavy metal tube end is arranged on,
Sleeve is connected, it includes being fixedly connected with first connecting tube and allows first metal bellows
The first connector sleeve being inserted, second for being fixedly connected and being rotatably connected with the first connector sleeve with second connecting tube
Connector sleeve, second metal bellows is through second connector sleeve and makes the first sealing ring and the second seal ring seal
Docking.
Connecting flange is provided with first connecting tube to be fixedly connected with first connector sleeve, described
Connecting flange is provided with two connecting tubes to be fixedly connected with second connector sleeve.
The connection sleeve is in the sealing joint formed with atria, and the atria is formed with excretion
Mouthful.
First connector sleeve includes the reduced diameter section and enlarged diameter section being coaxially disposed, and the atria is connected by first
The shoulder of female connector and the spacer ring being fixedly connected with the enlarged diameter section are formed.
The enlarged diameter section end is rotatably set formed with inner stopper, second connector sleeve by swivel bearing
Put the opening in larger diameter end.
Second connector sleeve is held in bulge loop outer surface with protruding inwardly from formed with bulge loop, the spacer ring.
Second connector sleeve and the spacer ring keep spacing, on the medial surface of second connector sleeve formed with
Ring groove.
The length of first metal bellows or the second metal bellows is in 30-80mm.
The sealing ring is corresponding plane, slope surface or cambered surface sealing pair.
The rigidity of first metal bellows or the second metal bellows is more than 100N/mm.
Compared with prior art, the beneficial effects of the utility model are：
Certain length and rigidity is respectively welded in the anchor tip and swivel joint joint of the swivel joint of the utility model
Metal bellows, and weld wear-resistant material sealing ring again in the other end of metal bellows, it is close after the completion of swivel joint assembling
Seal ring docks and bellows is had certain decrement, and then stroke after thermal expansion is efficiently used, there is provided in sealing contact
Required axial pre tightening force, at the same the working space of the rotary components such as working media and bearing is independent.That is, it is straight using pipeline
The structure type of sealing docking is connect, eliminates dependence of the components such as bearing to sealing performance；Under high-temperature work environment, metal
Bellows not only can absorb the stroke of pipeline in swivel joint, and then increases the decrement of bellows, and high temperature is positively utilized
The stroke of each assembly material improves sealing performance under environment, more to improve assembling structure, to eliminate the components such as bearing in acid
To the dependence of sealing performance in alkali working media.
Brief description of the drawings
Fig. 1 show the structure diagram of the high temperature rotary joint of the utility model；
Fig. 2 show the structure diagram of the first connector；
Fig. 3 show the reserved notch schematic diagram of the first connector 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 utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description only to explain the utility model, is not used to limit the utility model.
As shown in the figure, the high temperature rotary joint of the utility model includes,
First connector, it includes the first connecting tube 11 and the first metal wave being fixedly connected with first connecting tube 11
Line pipe 12, and the first sealing ring 13 of the first wavy metal tube end is fixed at,
Second connector, it includes the second connecting tube 21 and the second wavy metal being fixedly connected with second connecting tube
Pipe 22, and the second sealing ring 23 of the second wavy metal tube end is fixed at,
The connection sleeve of stainless steel, it includes being fixedly connected with first connecting tube and allows described the
The first connector sleeve 31 that one metal bellows is inserted, is fixedly connected and can with the first connector sleeve with second connecting tube
Second connector sleeve 32 of rotatable connection, second metal bellows through second connector sleeve and make first close between two parties
Seal ring and the docking of the second seal ring seal.
Wherein, it is to ensure overall sealing effect, the pressure of the first sealing ring and the second sealing interannular under room temperature after mounting
Press it is strong larger, generally in 2Mpa or more, when inside stream crosses high-temperature molten salt, during such as 580 DEG C of high-temperature molten salts, two sealing interannulars
Pressure can reach 4Mpa even more than.The metal bellows material is made of high temperature resistant stainless steel, such as 304H, metal bellows
Wall thickness thickness is in 0.6-1mm, such as 0.8mm, and for pitch in 8-12mm, such as 10mm, bulk metal Bellows Length is excellent in 30-80mm
40-70cm, such as 50cm, 60cm are selected, wavy metal pipe stiffness is more than 100N/mm, stretches in range in stiffness and belong to elastic deformation, nothing
Fatigue influences, and can meet to use for a long time, wavy metal length of tube is related with decrement needed for calculating, and sealing ring material is hard
Alloy, e.g., Si Taili stainless steels, metal bellows are realized with being fixedly connected for connecting tube using specialty welding.
The utility model is connected by connecting tube with exterior line, is such as connected with heat storage can circuit or thermal-collecting tube, at the same time
In the fixed setting of the opposite end of two connecting tubes, such as welded joints seal circle, then using connect sleeve by the first connector and
Second connector axially position but it is rotatably connected and two sealing rings is formed and inwardly squeeze
Pressure, is extruded using sealing ring and forms the rotary type sealed connection that sealed connection forms this pipeline, that is, rotated
Certain length and the metal bellows of rigidity is respectively welded in the fixed end and rotating end joint of connector, and in wavy metal
The other end of pipe welds wear-resistant material sealing ring again, and after the completion of swivel joint assembling, sealing ring docks and bellows is had necessarily
Decrement, and then stroke after thermal expansion is efficiently used, there is provided to required axial pre tightening force in sealing contact, while by work
The working space of the rotary components such as medium and bearing is independent.That is, the structure type of docking is directly sealed using pipeline, is eliminated
Dependence of the components such as bearing to sealing performance；Under high-temperature work environment, metal bellows not only can absorb swivel joint
The stroke of interior pipeline, and then increase the decrement of bellows, the stroke of each assembly material under hot environment is positively utilized
To improve sealing performance, more to improve assembling structure, to eliminate the components such as bearing in soda acid working media to sealing performance
Rely on.
Specifically, for ease of integrated connection, be provided with the middle part of first connecting tube 11 connecting flange 14 with
First connector sleeve is fixedly connected, be provided with second connecting tube connecting flange with second connector sleeve
It is fixedly connected.Meanwhile end connecting flange is additionally provided with the outer end of the first connecting tube to be connected to whole pipeline.Exist at the same time
The end set of connecting tube has flange 15, by flanged joint, can guarantee that preferable concentricity.
Wherein, the inner side of connecting flange 14 also has part first to connect pipeline section, the first connection pipeline section on the inside of this
End is welded with the first metal bellows, and to strengthen bonding area, the internal diameter at the end is identical with the first overall connecting tube,
It is preferred that the larger design of this section selection wall thickness, so also improves assembling, centering during the first connector sleeve can be loaded now, second
Connecting tube design is similar, is not unfolded to describe herein.
Further, the sealing ring is corresponding plane, slope surface or cambered surface sealing pair.The i.e. described sealing ring has three
Kind structure：The first is plane sealing structure, that is, contacts sealing surface and dock form for plane；Second is conical surface sealing structure,
It is cone match form to contact sealing surface；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, to neutrality, even more improving
Seal the frictional force and sealing performance of loop interface.
Further, to prevent from gathering in connector sleeve after revealing at sealing, the connection sleeve, such as the first connection
The sealing joint is sleeved on formed with atria 33, the atria is formed with discharge port.Specifically, described first
Connector sleeve includes the reduced diameter section and enlarged diameter section being coaxially disposed, and the enlarged diameter section end is described formed with inner stopper
Second connector sleeve can be rotatably set in the opening of larger diameter end by swivel bearing.
First connector sleeve is designed using reducing type, and the rotatable axis for realizing two connector sleeves using inner stopper is located by connecting,
Specifically, which 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 the bearing external bushing outer surface outer ring with first connector sleeve
Hole baffle ring 44, and be connected with second connector sleeve to position the axis of the axial outer bearing sleeve outer surface inner ring
With baffle ring 45, using two baffle rings, stability and resistance to pressure that connector sleeve connects is effectively ensured.
Further, for avoid leakage fused salt on bearing form influence, the atria by the first connector sleeve platform
Shoulder and the spacer ring 34 being fixedly connected with the enlarged diameter section are formed, second connector sleeve protrude inwardly from formed with bulge loop
24, the spacer ring is held in bulge loop outer surface.
The independent design of atria is realized using spacer ring using variable diameter design, further reduces fused salt directly to bearing
Corrode, moreover, forming bulge loop corresponding with the spacer ring on the second connector sleeve, the bulge loop and spacer ring form the same of sealing
When, centering is also provided, improves the operational effect of rotary sleeve.
Further, second connector sleeve keeps spacing to reduce CONTACT WITH FRICTION area with the spacer ring, described
The second connector sleeve medial surface on formed with ring groove 25, which reduces the outside transmission of internal heat, meanwhile, also
Can heater be set in the ring groove to reduce the temperature drop of junction.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (10)
- A kind of 1. high temperature rotary joint, it is characterised in that including,First connector, it includes the first connecting tube and the first metal bellows being fixedly connected with first connecting tube, with And the first sealing ring of the first wavy metal tube end is arranged on,Second connector, it includes the second connecting tube and the second metal bellows being fixedly connected with second connecting tube, with And the second sealing ring of the second wavy metal tube end is arranged on,Sleeve is connected, it includes being fixedly connected with first connecting tube and allows the first metal bellows insertion First connector sleeve therein, be fixedly connected with second connecting tube and with the first connector sleeve is rotatably connected second is connected Set, second metal bellows is through second connector sleeve and makes the first sealing ring and the second seal ring seal pair Connect.
- 2. high temperature rotary joint as claimed in claim 1, it is characterised in that be provided with connection method in first connecting tube The first connector sleeve described in Lan Yiyu is fixedly connected, and connecting flange is provided with second connecting tube with described second Connector sleeve is fixedly connected.
- 3. high temperature rotary joint as claimed in claim 1, it is characterised in that the connection sleeve is in the sealing pair Place is met formed with atria, the atria is formed with discharge port.
- 4. high temperature rotary joint as claimed in claim 3, it is characterised in that first connector sleeve includes what is be coaxially disposed Reduced diameter section and enlarged diameter section, what the atria was fixedly connected by the shoulder of the first connector sleeve and with the enlarged diameter section Spacer ring is formed.
- 5. high temperature rotary joint as claimed in claim 4, it is characterised in that stop formed with interior the enlarged diameter section end Mouthful, second connector sleeve can be rotatably set in the opening of larger diameter end by swivel bearing.
- 6. high temperature rotary joint as claimed in claim 4, it is characterised in that second connector sleeve is formed with protruding inwardly from There is bulge loop, the spacer ring is held in bulge loop outer surface.
- 7. high temperature rotary joint as claimed in claim 4, it is characterised in that second connector sleeve is protected with the spacer ring Spacing is held, formed with ring groove on the medial surface of second connector sleeve.
- 8. high temperature rotary joint as claimed in claim 1, it is characterised in that the first metal bellows or the second metal bellows Length in 30-80mm.
- 9. high temperature rotary joint as claimed in claim 1, it is characterised in that the sealing ring is corresponding plane, slope surface Or cambered surface sealing pair.
- 10. high temperature rotary joint as claimed in claim 1, it is characterised in that the first metal bellows or the second wavy metal The rigidity of pipe is more than 100N/mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720783736.XU CN207349642U (en) | 2017-06-30 | 2017-06-30 | High temperature rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720783736.XU CN207349642U (en) | 2017-06-30 | 2017-06-30 | High temperature rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207349642U true CN207349642U (en) | 2018-05-11 |
Family
ID=62358988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720783736.XU Active CN207349642U (en) | 2017-06-30 | 2017-06-30 | High temperature rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207349642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191715A (en) * | 2017-06-30 | 2017-09-22 | 天津滨海设备配套技术有限公司 | High temperature rotary joint |
-
2017
- 2017-06-30 CN CN201720783736.XU patent/CN207349642U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191715A (en) * | 2017-06-30 | 2017-09-22 | 天津滨海设备配套技术有限公司 | High temperature rotary joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240722 Address after: Shop No. 247 Zhongshan Road, Ducheng Town, Yunan County, Yunfu City, Guangdong Province, China 527199 Patentee after: Guangdong Jinfangyuan Energy Storage Technology Co.,Ltd. Country or region after: China Address before: No. 301, Building 5, No. 188 Rixin Road, Binhai Science and Technology Park, Binhai New Area, Tianjin, 300301 Patentee before: TIANJIN BINHAI EQUIPMENT SUPPORTING TECHNOLOGY Co.,Ltd. Country or region before: China |