CN206918468U - Butt sealing formula high temperature pipe and dock swivel joint - Google Patents
Butt sealing formula high temperature pipe and dock swivel joint Download PDFInfo
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- CN206918468U CN206918468U CN201720784442.9U CN201720784442U CN206918468U CN 206918468 U CN206918468 U CN 206918468U CN 201720784442 U CN201720784442 U CN 201720784442U CN 206918468 U CN206918468 U CN 206918468U
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- high temperature
- sealing
- temperature pipe
- formula high
- connecting tube
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Abstract
The utility model 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.Dock of the present utility model seals high temperature pipe, and using metal bellows as connecting and storing power part, attachment structure is simple, can effectively bear high temperature, realizes the purpose of rotatory sealing.
Description
Technical field
Photo-thermal electro-technical field is the utility model is related to, is revolved more particularly to a kind of Butt sealing formula high temperature pipe and dock
Adapter.
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 and the technology that heat-transfer fluid is generated 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, reduce the risk that fused salt pipeline leaks.
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 end is connected with connecting line using screw thread or flange, then by rotary joint rotating part by housing, axle
Hold, the component such as sealing ring docks 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 and inner tube working media,
Reach the effect of sealing 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.
Utility model content
The purpose of this utility model is to be directed to technological deficiency present in prior art, and it is high to provide a kind of Butt sealing formula
Temperature pipe and dock swivel joint.
Technical scheme is used by realize the purpose of this utility model：
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 welds 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 utility model are：
Dock of the present utility model seals high temperature pipe, using metal bellows as connecting and storing power part, connects knot
Structure is simple, can effectively bear high temperature, realizes the purpose of rotatory sealing.
Certain length and rigidity is respectively welded in the fixed end and rotating end joint of swivel joint in the utility model
Metal bellows, and weld high-abrasive material sealing ring again in the other end of metal bellows, it is close after the completion of swivel joint assembling
Seal ring is docked and bellows is had certain decrement, and then stroke after thermal expansion is effectively utilized, 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 property；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 property under environment, more to improve assembling structure, to eliminate the components such as bearing in acid
To the dependence of sealing property in alkali working media.
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 dock swivel joint of the present utility model；
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 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 illustrated, Butt sealing formula high temperature pipe of the present utility model includes connecting tube 11 and consolidated with described connecting tube 11
Surely the metal bellows 12 connected, 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 are big in 30-80mm, wavy metal pipe stiffness in 8-12mm, such as 10mm, bulk metal Bellows Length
Belong to elastic deformation in being stretched in 100N/mm, range in stiffness, no fatigue influences, and can meet to use for a long time, wavy metal pipe range
Degree is relevant with decrement needed for calculating, and sealing ring material is hard alloy, and e.g., Si Taili stainless steels, metal bellows is with being connected
Being fixedly connected for pipe is realized using specialty welding.
Dock of the present utility model seals high temperature pipe, using metal bellows as connecting and storing power part, connects knot
Structure is simple, can effectively bear high temperature, realizes the purpose of rotatory sealing.
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.There is flange 15 in the end set of connecting tube simultaneously, while have flange in the end set 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, and to strengthen bonding area, the internal diameter at the end is identical with the connecting tube of entirety, and preferably the section selects
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, do not deploy to describe herein.
Meanwhile the invention also discloses a kind of dock swivel joint, including the Butt sealing formula described in two is high
Wen Guan, and adapter sleeve, described adapter sleeve is connected respectively with described connecting tube and the seal ring seal pair described in by two
Connect.
Certain length and the metal wave of rigidity is respectively welded in the fixed end and rotating end joint of swivel 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 stroke after thermal expansion is effectively utilized, there is provided to required axial direction in sealing contact
Pretightning force, at the same 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, eliminate dependence of the components such as bearing to sealing property；Under high-temperature work environment, metal bellows is not
The stroke of pipeline in only absorbable swivel joint, and then increase the decrement of bellows, it 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 utility model, specific embodiment of the utility model is expanded on further in the description by specific embodiment below
Include including dock swivel joint,
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 the first sealing ring 13 of the first wavy metal tube end is fixedly installed on,
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 the second sealing ring 23 of the second wavy metal tube end is fixedly installed on,
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, the second described metal bellows through described the second adapter sleeve and make 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 Butt sealing of the present utility model
Formula high temperature pipe.
Wherein, it is to ensure overall sealing effectiveness, the pressure of the first sealing ring and the second sealing interannular under normal temperature after mounting
Press it is strong larger, typically 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 utility model is connected by connecting tube with exterior line, is such as connected with heat storage can loop or thermal-collecting tube, simultaneously
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 joint and
Second joint axially position but it is rotatably connected and two sealing rings is formed with inwardly extruding, utilizes sealing ring extruding to form sealing
The rotary type that connection forms 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
Kind 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,
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, from centering, even more improving
Seal the frictional force and sealing property of loop interface.
Further, to prevent from gathering in adapter sleeve after revealing at sealing, described connection sleeve, such as the first connection
Described sealing joint is enclosed on 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 described formed with inner stopper
Second adapter sleeve can be rotatably set in 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, bearing neck bush 42, is arranged on rolling bearing
The bearing external bushing 43 in outside, it 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, stability and resistance to pressure that adapter sleeve connects is effectively ensured.
Further, for avoid leakage fused salt on bearing form influence, described atria by the first adapter sleeve platform
Shoulder and the spacer ring 34 being fixedly connected with described enlarged diameter section are formed, and the inwardly projecting ground of the second described adapter sleeve is formed with bulge loop
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, further reduces fused salt directly to bearing
Corrode, moreover, forming bulge loop corresponding with described spacer ring on the second adapter 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, 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 formed with ring groove 25, the ring groove reduces the outside transmission of internal heat, meanwhile, also
Can heater be set in described ring groove to reduce the temperature drop of junction.
Described above is only preferred embodiment of the present 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
Enter and retouch and also should be regarded as the scope of protection of the utility model.
Claims (8)
- A kind of 1. 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 are connected with described connecting tube and dock the seal ring seal described in two respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784442.9U CN206918468U (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 |
|---|---|---|---|
| CN201720784442.9U CN206918468U (en) | 2017-06-30 | 2017-06-30 | Butt sealing formula high temperature pipe and dock swivel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206918468U true CN206918468U (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720784442.9U Active CN206918468U (en) | 2017-06-30 | 2017-06-30 | Butt sealing formula high temperature pipe and dock swivel joint |
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| CN (1) | CN206918468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143707A (en) * | 2017-06-30 | 2017-09-08 | 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 CN201720784442.9U patent/CN206918468U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143707A (en) * | 2017-06-30 | 2017-09-08 | 天津滨海设备配套技术有限公司 | Butt sealing formula high temperature pipe and dock swivel joint |
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