CN202280993U - Novel three-dimensional straight pipe pressure balance type corrugated expansion joint - Google Patents
Novel three-dimensional straight pipe pressure balance type corrugated expansion joint Download PDFInfo
- Publication number
- CN202280993U CN202280993U CN2011203273568U CN201120327356U CN202280993U CN 202280993 U CN202280993 U CN 202280993U CN 2011203273568 U CN2011203273568 U CN 2011203273568U CN 201120327356 U CN201120327356 U CN 201120327356U CN 202280993 U CN202280993 U CN 202280993U
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- fixedly connected
- bellows
- connecting tube
- pipe
- expansion joint
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Abstract
The utility model provides a novel three-dimensional straight pipe pressure balance type corrugated expansion joint. The expansion joint is characterized in that a first operation corrugated pipe and a balance corrugated pipe are arranged between a first flange and an end plate, a second operation corrugated pipe is arranged in the balance corrugated pipe, an end of the inner side of the first flange is fixedly connected with a first end pipe, and the outer side of the first end pipe is provided with an outer pipe; one end of the first operation corrugated pipe is fixedly connected to the outer pipe, and the other end of the first operation corrugated pipe is fixedly connected with the first end pipe; the outer pipe is fixedly connected with a second end pipe through a concentric reducing pipe, the other end of the second end pipe is fixedly connected with a second flange, one end of the balance corrugated pipe is fixedly connected with the middle part of the outer side of the concentric reducing pipe, and the other end of the balance corrugated pipe is fixedly connected to the end plate; and one end of the second operation corrugated pipe which is arranged in the balance corrugated pipe is connected to the middle part of the outer side of the concentric reducing pipe, and the other end of the second operation corrugated pipe is fixedly connected to the end plate. According to the utility model, through adoption of the operation corrugated pipes of full external pressure structures, safety factor is higher, the structure is more compact, and the sweeping effect is more thoroughgoing.
Description
Technical field
The utility model relates to a kind of pipeline spare part of carrying granule solid dielectric or liquid, gas, is specifically related to a kind of novel three dimension straight pipe pressure balance type corrugated expansion joint.
Background technique
Bellows and a bellows that bears external pressure, two end plates, several pull bars that traditional three-dimensional straight pipe pressure equilibrium swelling joint is pressed in bearing by two are formed, and wherein parallel connection between two bellowss is born pressure thrust by pull bar, its deficiency as follows:
(1) one group of work bellows is interior laminated structure, and wave number restricted products rigidity is relatively large;
(2) the unreasonable purging of purge position is not thorough;
(3) the product structure size is compact inadequately.
Summary of the invention
The purpose of the utility model is to provide the novel three dimension straight pipe pressure balance type corrugated expansion joint of a kind of compact structure, the complete outer laminated structure of work bellows.
Realize the technological scheme of the utility model purpose: a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint; It comprises first flange and the end plate that is connected with big pull bar two ends respectively; Between first flange and end plate, be provided with first work bellows and the balance bellows, the second work bellows is arranged on the balance bellows interior; Wherein, be fixedly connected the first end pipe at the inner end of first flange, the first end pipe outside is provided with outer tube; One end of the described first work bellows is fixedly connected on the outer tube, and the other end is fixedly connected on the first end pipe; Outer tube is fixedly connected with the second end pipe through Concentric Reducers, and the other end of the second end pipe is fixedly connected second flange; Described balance bellows one end is fixedly connected on the outer middle side part of Concentric Reducers, and the other end is fixedly connected on the end plate; The described second work bellows that is arranged on a balance bellows interior also end is fixedly connected on the outer middle side part of Concentric Reducers, and the other end is fixedly connected on the end plate.
Aforesaid a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint, an end of its described first work bellows is fixedly connected with outer tube through first end ring, and the other end of the first work bellows is fixedly connected with the first end pipe through second end ring; Promptly an end of the first work bellows is fixed on first end ring, and first end ring is fixed on the end of outer tube; The other end of the first work bellows is fixed on second end ring, and second end ring is fixed on an end of the first end pipe.
Aforesaid a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint, its described first work bellows comprises first connecting tube, first intervalve and second connecting tube that connects successively; On first connecting tube and second connecting tube, have bellows segment respectively, first connecting tube is fixedly connected with outer tube, and second connecting tube is fixedly connected with the first end pipe.
Aforesaid a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint, its described second work bellows comprises the 3rd connecting tube, second intervalve and the 4th connecting tube that connects successively; On the 3rd connecting tube and the 4th connecting tube, have bellows segment respectively, the 3rd connecting tube is fixedly connected with the outer middle side part of Concentric Reducers, and the 4th connecting tube is fixedly connected with end plate.
Aforesaid a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint; One end of its described balance bellows is fixedly connected through the outer middle side part of the 5th connecting tube and Concentric Reducers, and the other end of balance bellows is fixedly connected with end plate through the 6th connecting tube; An end that is the balance bellows is fixed on the 5th connecting tube, and the 5th connecting tube is fixed on the outer middle side part of Concentric Reducers; The other end of balance bellows is fixed on the 6th connecting tube, and the 6th connecting tube is fixed on the end plate.
Aforesaid a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint, it is provided with the end stiffening ring at described the 5th connecting tube and balance bellows joint, the 6th connecting tube and balance bellows joint; Between each ripple of the bellows segment of balance bellows, be provided with stiffening ring.
Aforesaid a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint, it has the first purging flange that is connected with blowing cleaner in described outer tube arranged outside; The 5th connecting tube that is connected with the outer middle side part of Concentric Reducers is provided with the second purging flange that is connected with blowing cleaner; End plate is provided with several purge holes of band plug.
Aforesaid a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint, its described balance bellows outside is provided with exterior cover pipeline, and exterior cover pipeline one end is fixed on the end plate.
Aforesaid a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint, its described first flange is fixedly connected with big pull bar by big nut respectively with end plate, is provided with taper faced washer and spherical washer therebetween.
The effect of the utility model is: the described novel three-dimensional straight pipe pressure-equalizing of the utility model formula corrugated expansion joint is made up of two bellows and bellows, two end plates, several pull bars of pressing in bearing that bear external pressure; Wherein parallel connection between two bellowss; Bellows is stressed to change with pressure balance principle, bears pressure thrust by pull bar.Have the following advantages:
(1) the complete outer laminated structure of work bellows suitably increases wave number and reduces rigidity;
(2) end plate one end adopts plug, opens plug during purging, and the purging effect is more thorough;
(3) more compact structure, and adopt external pressure structure corrugated pipe safety coefficient higher.
Description of drawings
Fig. 1 is the structural representation of the described a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint of the utility model.
Among the figure: 1. big pull bar; 2. big nut; 3. first flange; 4. spherical washer; 5. taper faced washer; 6. the first end pipe; 7. first end ring; 8. first connecting tube; 9. first purge flange; First work bellows; 11. first intervalve; 12. outer tube; 13. Concentric Reducers; 14. second connecting tube; 15. second end ring; 16. the 5th connecting tube; 17. second purges flange; 18. the 3rd connecting tube; 19. the second work bellows; 20. second intervalve; 21. balance bellows; 22. exterior cover pipeline; 23. the 4th connecting tube; 24. the 6th connecting tube; 25. end plate; 26. plug; 27. the second end pipe; 28. positioning rod; 29. second flange; 30. stiffening ring; 31. end stiffening ring.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint of the present invention is further described.
As shown in Figure 1, the described novel three-dimensional straight pipe pressure-equalizing of the utility model formula corrugated expansion joint comprises first flange 3 and end plate 25 that is connected with big pull bar 1 two ends respectively.Between first flange 3 and end plate 25, be provided with the first work bellows 10 and be arranged on balance bellows 21 inside with balance bellows 21, the second work bellowss 19.Above-mentioned first flange 3 is fixedly connected with big pull bar 1 through big nut 2 respectively with end plate 25, is provided with taper faced washer 5 and spherical washer 4 therebetween.
Weld the first end pipe, 6, the first end pipes, 6 outsides at the inner end of first flange 3 and be provided with outer tube 12.The first work bellows 10 comprises successively first connecting tube 8, first intervalve 11 and second connecting tube 14 that connects; On first connecting tube 8 and second connecting tube 14, have bellows segment respectively.First connecting tube, 8 one ends of the first work bellows 10 are welded on first end ring 7, and first end ring 7 is welded on the end of outer tube 12; Second connecting tube, 14 1 ends of the first work bellows 10 are welded on second end ring 15, and second end ring 15 is fixed on an end of the first end pipe 6.
Outer tube 12 is fixedly connected with the second end pipe 27 through Concentric Reducers 13; The larger diameter end of Concentric Reducers 13 is welded on outer tube 12 1 ends; The smaller diameter end of Concentric Reducers 13 is welded on the end of the second end pipe 27, and the other end of the second end pipe 27 is welded on the inner end of second flange 29.
One end of balance bellows 21 is fixed on the 5th connecting tube 16, and the 5th connecting tube 16 is fixed on the Concentric Reducers 13 outer middle side parts; The other end of balance bellows 21 is fixed on the 6th connecting tube 24, and the 6th connecting tube 24 is fixed on the end plate 25.For gaining in strength, be provided with end stiffening ring 31 with balance bellows 21 joints at the 5th connecting tube 16 and balance bellows 21 joints, the 6th connecting tube 24; Between each ripple of the bellows segment of balance bellows 21, be provided with stiffening ring 30.
The second work bellows 19 is arranged on balance bellows 21 inside, and it comprises successively the 3rd connecting tube 18, second intervalve 20 and the 4th connecting tube 23 that connects.On the 3rd connecting tube 18 and the 4th connecting tube 23, have bellows segment respectively, the 3rd connecting tube 18 is fixedly connected with Concentric Reducers 13 outer middle side parts, and the 4th connecting tube 23 is fixedly connected with end plate 25.
For preventing in the medium entering bellows bellows to be produced wearing and tearing and wash away, be provided with the first purging flange 9 and second that is connected with blowing cleaner and purge flange 17.Have first to purge flange 9 in outer tube 12 arranged outside; The 5th connecting tube 16 is provided with second and purges flange 17.On the end plate 25, purge 17 one-tenths 90 degree of flange direction and be provided with 2 purge holes being with plug 26 with second.This purge hole with plug 26 sealings, takes off plug 26 when purging when product moves.
By connecting to form an inner chamber between the 5th connecting tube 16, Concentric Reducers 13, balance bellows 21, the 6th connecting tube 24, the 3rd connecting tube 18, the second work bellows 19, the 4th connecting tube 23, the end plate 25; On the Concentric Reducers 13 of corresponding position, open 12 holes; Make the medium circulation, propagation of pressure is to end plate 25.
Be provided with exterior cover pipeline 22 in balance bellows 21 outsides by bellows outer surface dust stratification at work for prevent that the balance bellows from colliding with and preventing in transportation and installation process, exterior cover pipeline 22 1 ends are fixed on the end plate 25.
The pipe diameter of the above-mentioned first end pipe 6 is consistent with the pipe diameter of the pipeline of required installation; Play link and pressure part; And can serve as guide shell well; Because this first end pipe can prevent effectively that the medium that flows from directly contacting with bellows, so very suitable to the medium pipeline of those solid granules or dust-like.
Above-mentioned first flange 3 is connected with conveyance conduit, generally requires design according to pipeline, stamps bolt hole at an upper portion thereof, makes the intensity of its intensity and end plate consistent, can bear the interior pressure thrust that bellows produces, and also can reduce the physical dimension of product so simultaneously.
Above-mentioned Concentric Reducers 13 can make the second end pipe 27 be applicable to the different pipeline of connection diameter, and can bear the various stress that pressure medium produces.
Above-mentioned big pull bar 1 bears the pressure thrust that bellows produces, and through the conduction of this rigid pipe to power, can guarantee that product self can absorb the pressure thrust that bellows produces; Taper faced washer 5 main effects are and spherical washer 4 supporting uses the pull bar displacement when being used for product absorption lateral displacement; The main effect of spherical washer 4 these parts is and taper faced washer 5 supporting uses the pull bar displacement when being used for product absorption lateral displacement; Big nut 2 is used for the outer end of taper faced washer and spherical washer, can cooperate with big pull bar to absorb the pressure thrust that bellows produces.
On request the said expansion joint of the utility model is kept at a certain distance away and be installed in the pipeline; Pipeline itself receives thermal stretching when circulating high temperature media in the pipeline; The first work bellows 10 is stretched, and the second work bellows 19 and the elongation of balance bellows 21 equivalent absorb the axial displacement in the pipeline; The first work bellows 10 can absorb the lateral displacement of pipeline simultaneously, and the pressure thrust that bellows produces is absorbed by big pull bar.In the utility model, the first work bellows and the second work bellows are designed to outer laminated structure, and the balance bellows is interior laminated structure, so the first work bellows and the second work bellows can not expose outside.The described expansion joint of the utility model also has positioning rod 28, in the transportation of product and installation process, can play interim location usefulness to product, prevents that bellows from distorting in transportation and installation process, will be with this positioning rod dismounting during work.
The expansion joint product of the utility model can absorb the axial and transverse set resultant displacement in the pipeline simultaneously, and can limit its displacement size; The complete outer laminated structure of work bellows suitably increases wave number and has reduced product rigidity; In the internal diameter of the guide shell that is provided with on the structure and the pipeline that links to each other through consistent; Medium does not directly contact with bellows; Be particularly useful for pipeline is had the conveying of the media such as solid particle that wash away, be provided with blowing cleaner simultaneously, end plate one end adopts plug; Open plug during purging, purge effect and more thoroughly can prolong its working life greatly.
Claims (10)
1. novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint; It comprises first flange (3) and the end plate (25) that is connected with big pull bar (1) two ends respectively; It is characterized in that: between first flange (3) and end plate (25), be provided with first work bellows (10) and the balance bellows (21), the second work bellows (19) is arranged on balance bellows (21) inside;
Wherein, be fixedly connected the first end pipe (6) at the inner end of first flange (3), the first end pipe (6) outside is provided with outer tube (12); One end of the described first work bellows (10) is fixedly connected on the outer tube (12), and the other end is fixedly connected on the first end pipe (6);
Outer tube (12) is fixedly connected with the second end pipe (27) through Concentric Reducers (13), and the other end of the second end pipe (27) is fixedly connected second flange (29); Described balance bellows (21) one ends are fixedly connected on the outer middle side part of Concentric Reducers (13), and the other end is fixedly connected on the end plate (25); Described be arranged on the second inner work bellows (19) of balance bellows (21) also an end be fixedly connected on the outer middle side part of Concentric Reducers (13), the other end is fixedly connected on the end plate (25).
2. a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint according to claim 1; It is characterized in that: an end of the described first work bellows (10) is fixedly connected with outer tube (12) through first end ring (7), and the other end of the first work bellows (10) is fixedly connected with the first end pipe (6) through second end ring (15); Promptly an end of the first work bellows (10) is fixed on first end ring (7), and first end ring (7) is fixed on the end of outer tube (12); The other end of the first work bellows (10) is fixed on second end ring (15), and second end ring (15) is fixed on an end of the first end pipe (6).
3. a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint according to claim 1 and 2 is characterized in that: the described first work bellows (10) comprises first connecting tube (8), first intervalve (11) and second connecting tube (14) that connects successively; On first connecting tube (8) and second connecting tube (14), have bellows segment respectively, first connecting tube (8) is fixedly connected with outer tube (12), and second connecting tube (14) is fixedly connected with the first end pipe (6).
4. a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint according to claim 1 is characterized in that: the described second work bellows (19) comprises the 3rd connecting tube (18), second intervalve (20) and the 4th connecting tube (23) that connects successively; On the 3rd connecting tube (18) and the 4th connecting tube (23), have bellows segment respectively, the 3rd connecting tube (18) is fixedly connected with the outer middle side part of Concentric Reducers (13), and the 4th connecting tube (23) is fixedly connected with end plate (25).
5. a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint according to claim 1; It is characterized in that: an end of described balance bellows (21) is fixedly connected with the outer middle side part of Concentric Reducers (13) through the 5th connecting tube (16), and the other end of balance bellows (21) is fixedly connected with end plate (25) through the 6th connecting tube (24); An end that is balance bellows (21) is fixed on the 5th connecting tube (16), and the 5th connecting tube (16) is fixed on the outer middle side part of Concentric Reducers (13); The other end of balance bellows (21) is fixed on the 6th connecting tube (24), and the 6th connecting tube (24) is fixed on the end plate (25).
6. a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint according to claim 5 is characterized in that: be provided with end stiffening ring (31) at described the 5th connecting tube (16) and balance bellows (21) joint, the 6th connecting tube (24) with balance bellows (21) joint; Between each ripple of the bellows segment of balance bellows (21), be provided with stiffening ring (30).
7. a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint according to claim 5 is characterized in that: the first purging flange (9) that is connected with blowing cleaner is arranged in described outer tube (12) arranged outside; The 5th connecting tube (16) that is connected with the outer middle side part of Concentric Reducers (13) is provided with the second purging flange (17) that is connected with blowing cleaner; End plate (25) is provided with several purge holes of band plug (26).
8. a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint according to claim 1, it is characterized in that: described balance bellows (21) outside is provided with exterior cover pipeline (22), and exterior cover pipeline (22) one ends are fixed on the end plate (25).
9. a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint according to claim 1; It is characterized in that: described first flange (3) is fixedly connected with big pull bar (1) by big nut (2) respectively with end plate (25), is provided with taper faced washer (5) and spherical washer (4) therebetween.
10. a kind of novel three-dimensional straight pipe pressure-equalizing formula corrugated expansion joint according to claim 1; It is characterized in that: described outer tube (12) is fixedly connected with the second end pipe (27) through Concentric Reducers (13); The larger diameter end that is Concentric Reducers (13) is fixedly connected on outer tube (12) one ends; The smaller diameter end of Concentric Reducers (13) is fixedly connected on the end of the second end pipe (27), and the other end of the second end pipe (27) is fixedly connected on the inner end of second flange (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203273568U CN202280993U (en) | 2011-09-02 | 2011-09-02 | Novel three-dimensional straight pipe pressure balance type corrugated expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203273568U CN202280993U (en) | 2011-09-02 | 2011-09-02 | Novel three-dimensional straight pipe pressure balance type corrugated expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280993U true CN202280993U (en) | 2012-06-20 |
Family
ID=46227161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203273568U Expired - Fee Related CN202280993U (en) | 2011-09-02 | 2011-09-02 | Novel three-dimensional straight pipe pressure balance type corrugated expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224677A (en) * | 2016-08-05 | 2016-12-14 | 洛阳双瑞特种装备有限公司 | A kind of anti-intrinsic pressure straight pipe pressure-balancing type expansion joint of post unstability |
| CN106969228A (en) * | 2017-05-25 | 2017-07-21 | 江苏省埃迪机电设备实业有限公司 | A kind of nested external pressure FlexbleJoint |
-
2011
- 2011-09-02 CN CN2011203273568U patent/CN202280993U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224677A (en) * | 2016-08-05 | 2016-12-14 | 洛阳双瑞特种装备有限公司 | A kind of anti-intrinsic pressure straight pipe pressure-balancing type expansion joint of post unstability |
| CN106969228A (en) * | 2017-05-25 | 2017-07-21 | 江苏省埃迪机电设备实业有限公司 | A kind of nested external pressure FlexbleJoint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20150902 |
|
| EXPY | Termination of patent right or utility model |