CN206112375U - Non -maintaining self -steering of external pressure straight tube pressure balance seals expansion joint - Google Patents
Non -maintaining self -steering of external pressure straight tube pressure balance seals expansion joint Download PDFInfo
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- CN206112375U CN206112375U CN201621027700.0U CN201621027700U CN206112375U CN 206112375 U CN206112375 U CN 206112375U CN 201621027700 U CN201621027700 U CN 201621027700U CN 206112375 U CN206112375 U CN 206112375U
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- outer tube
- iii
- bellows
- expansion joint
- plate
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- 239000000945 filler Substances 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000008676 import Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 206010000372 Accident at work Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a non -maintaining self -steering of external pressure straight tube pressure balance seals expansion joint, including import takeover, honeycomb duct, export takeover, outer tube and bellows, being equipped with outer tube III in the outer tube I, being equipped with bellows III in the outer tube III, III outsides of outer tube are equipped with bellows I, are equipped with bellows II in the outer tube II, bellows I is connected with crown plate I and outer tube III, and bellows II is connected with outer tube III and crown plate III, and bellows III is taken over with outer tube III and import and is connected, the filler flange outside is equipped with the clamping ring through spring application, is equipped with guide ball between clamping ring and export are taken over. The utility model discloses be provided with self sealing and guider, can also pour into sealing filler into through the filler filler, strengthen the sealing performance of expansion joint, keep the reliable sealed of expansion joint and nimble moving for a long time, realize self sealing, self guidance and non -maintaining. The utility model discloses be difficult for leakage, long service life, low, the work safe and reliable of maintenance cost.
Description
Technical field
The utility model is related to pipeline compensator technical field, and especially one kind is provided with automatic-sealed and guider,
Using the maintenance-free corrugated tube expansion joint of external pressure straight pipe pressure balance type.
Background technology
Heat supply pipeline needs segmentation to install some expansion joints for compensating pipeline extension, particularly for convey high temperature,
The long range heat supply pipeline of high-pressure medium, the wall thickness of expansion joint is larger, intensity is higher, and the axial displacement of extraction duct is more.Cause
This is higher for the reliability requirement of expansion joint for pipeline.
At present, it is common to use bellows expansion joint be mostly inner pressed working method.It is passed through in pipeline after medium, medium
During the inner chamber of bellows can be entered into, i.e., the inwall of bellows is subject to the pressure of medium.Pipeline extends or receives because expanding with heat and contract with cold
During contracting, the active force that bellows is stretched or compresses adds the pressure that ripple inside pipe wall bears, and easily causes the torsion of expansion joint
It is dynamic.During Long-Time Service, because the stroke that heat supply pipeline is produced is larger, the wave number of bellows is more, the ripple of expansion joint
Easily there is leakage because of fatigue in tube capacity, and inner pressed bellows can make whole expansion joint fail once leaking.Therefore periodically dimension is needed
Shield changes expansion joint for pipeline, causes the service life of expansion joint shorter, and the workload safeguarded and change is big, relatively costly.Have
When can also cause industrial accident because of the expansion joint for failing to find in time and change failure.
Utility model content
The purpose of this utility model is to provide one kind and is provided with automatic-sealed and guider, and reliability is higher, is difficult to let out
Leakage, long service life, realize non-maintaining external pressure straight-pipe pressure balanced expansion joint during use.
The purpose of this utility model is achieved by the following technical solution：
The non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing, including entrance sleeve, mozzle, discharge connection with
And two or more outer tube and bellows；The inner surface of the entrance sleeve is connected with mozzle, and mozzle extend into outlet and connects
In pipe, the outer surface of entrance sleeve is connected by ring flat-plate I with the left end of outer tube I, the right-hand member of outer tube I pass through ring flat-plate II with it is outer
The left end connection of sleeve pipe II, the right-hand member of outer tube II is connected with ring flat-plate III, and ring flat-plate III is set in the outer surface of discharge connection, described
Outer tube III is provided with the inner chamber of outer tube I, the inner side of outer tube III is provided with bellows III, and the outside of outer tube III is provided with ripple
Pipe I, is provided with bellows II in the inner chamber of the outer tube II；The left end of the bellows I is connected with ring flat-plate I, the right side of bellows I
End is connected by end ring I with outer tube III, and the left end of the bellows II is connected with outer tube III, the right-hand member of bellows II and institute
The connection of ring flat-plate III is stated, the left end of the bellows III is connected with the left end of outer tube III, the right-hand member of bellows III and the import
The outer surface connection of adapter；The right side of the ring flat-plate III is provided with filler chamber, and filler is provided with airtight and watertight padding in room；Described filler room by
Loading pipe and filler flange are constituted, and filler flange is connected by screw rod with ring flat-plate III, and filler flange outside is provided with pressure ring, and pressure ring leads to
Cross the spring being set on screw rod to be connected with filler flange, the screw rod end on the outside of pressure ring is provided with nut, the pressure ring connects with outlet
The contact surface of pipe is provided with groove, and SDeflector is provided with groove.
Used as optimal technical scheme of the present utility model, the right-hand member of the outer tube III is by end ring II and discharge connection
Outer surface is welded and fixed, and the left end of the bellows II is connected by end ring II with outer tube III.
Used as optimal technical scheme of the present utility model, the left end of the bellows III is by end ring III and outer tube III
Left end is welded and fixed.
Used as optimal technical scheme of the present utility model, the filler tube wall of described filler room is provided with filling mouth.
As optimal technical scheme of the present utility model, collar aperture is provided with the tube wall of the outer tube III so that overcoat
Pipe I and the inner chamber of the composition of bellows I and the intracavity inter-connection of the discharge connection.
As optimal technical scheme of the present utility model, ball valve is installed on the tube wall of the outer tube I.
As optimal technical scheme of the present utility model, ring flat-plate hole is provided with the ring flat-plate I so that bellows I and ripple
The inner chamber that pipe III is constituted is connected with the open space in the outside of ring flat-plate I.
As optimal technical scheme of the present utility model, gusset, gusset are provided between the ring flat-plate II and outer tube II
It is welded and fixed with ring flat-plate II and outer tube II simultaneously.
Used as optimal technical scheme of the present utility model, the discharge connection outer wall on the right side of the ring flat-plate III is provided with otic placode,
Otic placode is connected by pull bar with the outer wall of outer tube II.
The beneficial effects of the utility model are：Relative to prior art, the utility model expansion joint is passed through Jie in pipeline
After matter, medium can be entered in the exterior chamber of bellows, i.e. external-compression type working method.What expansion joint was subject in pipeline extension
Pulling force and pressure are mutually balanced, and axially stable preferable, pipeline is not susceptible to twisting.Even if bellows occurs letting out because of fatigue failure
Leakage, the filler of expansion joint filler chamber can play preferable sealing function.
The utility model is provided with automatic-sealed and guider, can also inject airtight and watertight padding by filling mouth,
Strengthen the sealing property of expansion joint, the positive sealing and flexible motion of long-term holding expansion joint realize automatic-sealed, automatic guide
With it is non-maintaining.It is low, safe and reliable that the utility model is difficult leakage, long service life, maintenance cost.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the mplifying structure schematic diagram in Fig. 1 at A.
In figure：1st, entrance sleeve, 2, ring flat-plate I, 3, bellows I, 4, outer tube III, 5, outer tube I, 6, ball valve, 7, ring flat-plate
II, 8, gusset, 9, outer tube II, 10, ring flat-plate III, 11, pull bar, 12, otic placode, 13, filler chamber, 14, discharge connection, 15, water conservancy diversion
Pipe, 16, filling mouth, 17, airtight and watertight padding, 18, bellows III, 19, collar aperture, 20, bellows II, 21, end ring I, 22, end
Ring II, 23, end ring III, 24, ring flat-plate hole, 25, filler flange, 26, screw rod, 27, pressure ring, 28, SDeflector, 29, spring.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail with specific embodiment：
As depicted in figs. 1 and 2, the non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing, including entrance sleeve 1,
Mozzle 15, discharge connection 14 and two or more outer tube and bellows；The inner surface of the entrance sleeve 1 and mozzle 15
Connection, mozzle 15 is extend in discharge connection 14, and the outer surface of entrance sleeve 1 is connected by ring flat-plate I 2 with the left end of outer tube I 5
Connect, the right-hand member of outer tube I 5 is connected by ring flat-plate II 7 with the left end of outer tube II 9, right-hand member and the ring flat-plate III 10 of outer tube II 9 connect
Connect, ring flat-plate III 10 is set in the outer surface of discharge connection 14, outer tube III 4 is provided with the inner chamber of outer tube I 5, outer tube III 4
Inner side is provided with bellows III 18, and the outside of outer tube III 4 is provided with bellows I 3, bellows II is provided with the inner chamber of outer tube II 9
20；The left end of bellows I 3 is connected with ring flat-plate I 2, and the right-hand member of bellows I 3 is connected by end ring I 21 with outer tube III 4, bellows
II 20 left end is connected with outer tube III 4, and the right-hand member of bellows II 20 is connected with ring flat-plate III 10, the left end of bellows III 18 with it is outer
The left end connection of sleeve pipe III 4, the right-hand member of bellows III 18 is connected with the outer surface of entrance sleeve 1.
The right side of ring flat-plate III 10 is provided with filler chamber 13, filler chamber 13 and is provided with airtight and watertight padding 17；Filler chamber 13 is by loading pipe
Constitute with filler flange 25, filler flange 25 is connected by screw rod 26 with ring flat-plate III 10, the outside of filler flange 25 is provided with pressure ring 27,
Pressure ring 27 is connected by the spring 29 being set on screw rod 26 with filler flange 25, and the screw rod end in the outside of pressure ring 27 is provided with nut,
The pressure ring 27 is provided with groove with the contact surface of discharge connection 14, and SDeflector 28 is provided with groove.
In the present embodiment, the right-hand member of outer tube III 4 is welded and fixed by end ring II 22 with the outer surface of discharge connection 14, ripple
The left end of line pipe II 20 is connected by end ring II 22 with outer tube III 4.The left end of bellows III 18 is by end ring III 23 and outer tube
III 4 left end is welded and fixed.The filler tube wall of filler chamber 13 is provided with filling mouth 16.
Collar aperture 19 is provided with the tube wall of the present embodiment outer tube III 4 so that outer tube I 5 is interior with what bellows I 3 was constituted
Chamber and the intracavity inter-connection of discharge connection 14.Ball valve 6 is installed on the tube wall of outer tube I 5；Ring flat-plate hole 24 is provided with ring flat-plate I 2,
So that the inner chamber that bellows I 3 and bellows III 18 are constituted is connected with the open space in the outside of ring flat-plate I 2.Ring flat-plate II 7 and overcoat
Gusset 8 is provided between pipe II 9, gusset 8 is welded and fixed with ring flat-plate II 7 and outer tube II 9 simultaneously.The outlet on the right side of ring flat-plate III 10
The outer wall of adapter 14 is provided with otic placode 12, and otic placode 12 is connected by pull bar 11 with the outer wall of outer tube II 9.Pull bar 11 and otic placode 12 are led
It is used to fixing and protecting expansion joint, it is to avoid product is damaged in packaging and transportation, is installed in pipeline in expansion joint
Need to remove pull bar 11 during operating position.
Claims (9)
1. the non-maintaining self- steering sealed expansion joint of a kind of external pressure straight pipe pressure-equalizing, including entrance sleeve, mozzle, discharge connection
And two or more outer tube and bellows；The inner surface of the entrance sleeve is connected with mozzle, and mozzle extend into outlet
In adapter, the outer surface of entrance sleeve is connected by ring flat-plate I with the left end of outer tube I, the right-hand member of outer tube I pass through ring flat-plate II and
The left end connection of outer tube II, the right-hand member of outer tube II is connected with ring flat-plate III, and ring flat-plate III is set in the outer surface of discharge connection, its
It is characterized in that：Outer tube III is provided with the inner chamber of the outer tube I, the inner side of outer tube III is provided with bellows III, outer tube III
Outside is provided with bellows I, and bellows II is provided with the inner chamber of the outer tube II；
The left end of the bellows I is connected with ring flat-plate I, and the right-hand member of bellows I is connected by end ring I with outer tube III, the ripple
The left end of line pipe II is connected with outer tube III, and the right-hand member of bellows II is connected with the ring flat-plate III, the left end of the bellows III
It is connected with the left end of outer tube III, the right-hand member of bellows III is connected with the outer surface of the entrance sleeve；The right side of the ring flat-plate III
Side is provided with filler chamber, and filler is provided with airtight and watertight padding in room；Described filler room is made up of loading pipe and filler flange, and filler flange leads to
Cross screw rod to be connected with ring flat-plate III；Filler flange outside is provided with pressure ring, and pressure ring is by the spring that is set on screw rod and filler flange
Connection, the screw rod end on the outside of pressure ring is provided with nut, and the pressure ring is provided with groove, is provided with groove and leads with the contact surface of discharge connection
To ball.
2. the non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing according to claim 1, is characterized in that：It is described
The right-hand member of outer tube III is welded and fixed by end ring II with the outer surface of discharge connection, and the left end of the bellows II passes through end ring II
It is connected with outer tube III.
3. the non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing according to claim 1, is characterized in that：It is described
The left end of bellows III is welded and fixed by end ring III with the left end of outer tube III.
4. the non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing according to claim 1, is characterized in that：It is described
The filler tube wall of filler chamber is provided with filling mouth.
5. the non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing according to any one of Claims 1-4, it is special
Levying is：Collar aperture is provided with the tube wall of the outer tube III so that inner chamber and the outlet that outer tube I is constituted with bellows I
The intracavity inter-connection of adapter.
6. the non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing according to claim 5, is characterized in that：It is described
Ball valve is installed on the tube wall of outer tube I.
7. the non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing according to claim 5, is characterized in that：It is described
Ring flat-plate hole is provided with ring flat-plate I so that the inner chamber that bellows I and bellows III are constituted is connected with the open space in the outside of ring flat-plate I.
8. the non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing according to claim 1, is characterized in that：It is described
Gusset is provided between ring flat-plate II and outer tube II, gusset is welded and fixed with ring flat-plate II and outer tube II simultaneously.
9. the non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing according to claim 1, is characterized in that：It is described
The discharge connection outer wall on the right side of ring flat-plate III is provided with otic placode, and otic placode is connected by pull bar with the outer wall of outer tube II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027700.0U CN206112375U (en) | 2016-08-31 | 2016-08-31 | Non -maintaining self -steering of external pressure straight tube pressure balance seals expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027700.0U CN206112375U (en) | 2016-08-31 | 2016-08-31 | Non -maintaining self -steering of external pressure straight tube pressure balance seals expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206112375U true CN206112375U (en) | 2017-04-19 |
Family
ID=58518808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621027700.0U Expired - Fee Related CN206112375U (en) | 2016-08-31 | 2016-08-31 | Non -maintaining self -steering of external pressure straight tube pressure balance seals expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206112375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781563A (en) * | 2016-08-31 | 2018-03-09 | 吉慧萍 | The non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing |
-
2016
- 2016-08-31 CN CN201621027700.0U patent/CN206112375U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781563A (en) * | 2016-08-31 | 2018-03-09 | 吉慧萍 | The non-maintaining self- steering sealed expansion joint of external pressure straight pipe pressure-equalizing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20190831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |