CN107795786A - The non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing - Google Patents
The non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing Download PDFInfo
- Publication number
- CN107795786A CN107795786A CN201610793938.2A CN201610793938A CN107795786A CN 107795786 A CN107795786 A CN 107795786A CN 201610793938 A CN201610793938 A CN 201610793938A CN 107795786 A CN107795786 A CN 107795786A
- Authority
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- China
- Prior art keywords
- outer tube
- iii
- bellows
- expansion joint
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 33
- 230000007774 longterm 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
- 238000009434 installation Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/03—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube comprising two or more bellows
- F16L51/035—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube comprising two or more bellows for cancelling the axial loading resulting from fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
Abstract
The present invention relates to the non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing, including entrance sleeve, mozzle, discharge connection, outer tube and bellows；Outer tube III is provided with outer tube I, bellows III is provided with outer tube III, the outside of outer tube III is provided with bellows I, bellows II is provided with outer tube II；Bellows I is connected with ring flat-plate I and outer tube III, and bellows II is connected with outer tube III and ring flat-plate III, and bellows III is connected with outer tube III and entrance sleeve；Expansion joint is provided with leakage alarm, automatic-sealed and guider.The axial direction of expansion joint of the present invention is stablized preferable, and pipeline is not easy to twist, if bellows leaks, can and alarm.The present invention injects airtight and watertight padding by filling mouth, strengthens the sealing property of expansion joint, the long-term reliable sealing for keeping expansion joint, realizes on-line monitoring, automatic-sealed, automatic guide and non-maintaining.The present invention is not easy to leak, service life is long, maintenance cost is low, safe and reliable.
Description
Technical field
The present invention relates to pipeline compensator technical field, especially one kind be provided with on-line monitoring alarm, 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 to be segmented that installation is some to be used to compensate the expansion joints of pipeline extension, be particularly used to conveying 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 inner pressed working method mostly.After medium being passed through in pipeline, medium
It can enter in the inner chamber of bellows, i.e. pressure of the inwall of bellows by medium.Pipeline extends or received because expanding with heat and contract with cold
During contracting, active force that bellows is stretched or compressed, easily causes the torsion of expansion joint at the pressure born plus ripple inside pipe wall
It is dynamic.During long-term use, because stroke is larger caused by heat supply pipeline, the wave number of bellows is more, the ripple of expansion joint
Tube capacity easily leaks because of fatigue, and inner pressed bellows, which once leaks, can make whole expansion joint fail.Therefore periodically dimension is needed
Shield changes expansion joint for pipeline, causes the service life of expansion joint shorter, the workload safeguarded and changed is big, and cost is higher.Have
When can because fail in time find leakage and failure expansion joint, so as to cause generation industrial accident.
The content of the invention
It is an object of the invention to provide one kind to be provided with on-line monitoring warning device, automatic-sealed and guider, reliability
It is higher, it is not easy to leak, service life length, non-maintaining external pressure straight-pipe pressure balanced expansion joint is realized during use.
The purpose of the present invention is achieved by the following technical solution：
The non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing, including entrance sleeve, mozzle, go out
Mouth adapter and two or more outer tube and bellows；The inner surface of the entrance sleeve is connected with mozzle, and mozzle stretches into
Into discharge connection, the outer surface of entrance sleeve is connected by ring flat-plate I with the left end of outer tube I, and the right-hand member of outer tube I passes through ring
Plate II is connected with the left end of outer tube II, and 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 of discharge connection
Surface, is provided with outer tube III in the inner chamber of the outer tube I, and the inner side of outer tube III is provided with bellows III, outer tube III it is outer
Side 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,
The right-hand member of bellows I is connected by end ring I with outer tube III, and the left end of the bellows II is connected with outer tube III, bellows
II right-hand member is connected with the ring flat-plate III, and the left end of the bellows III is connected with the left end of outer tube III, the right side of bellows III
End is connected with the outer surface of the entrance sleeve；The right side of the ring flat-plate III is provided with filler chamber, and airtight and watertight padding is provided with filler chamber；
The filler chamber is made up of loading pipe and filler flange, and filler flange is connected by screw rod with ring flat-plate III；On the outer wall of filler chamber
Provided with filling mouth, filler is provided with dielectric leakage alarm sensor, and the sensor passes through signal wire and long-distance monitorng device
Circuit connects；Pressure ring is provided with the outside of filler flange, pressure ring is connected by the spring being set on screw rod with filler flange, outside pressure ring
The screw rod end of side is provided with nut, and the contact surface of the pressure ring and discharge connection is provided with groove, SDeflector is provided with groove.
As the preferred technical solution of the present invention, the right-hand member of the outer tube III passes through the appearance of end ring II and discharge connection
Face is welded and fixed, and the left end of bellows II is connected by end ring II with outer tube III.
As the preferred technical solution of the present invention, the left end of the bellows III passes through end ring III and the left end of outer tube III
It is welded and fixed.
As the preferred technical solution of the present invention, collar aperture is provided with the tube wall of the outer tube III so that outer tube I with
The inner chamber that bellows I is formed and the intracavity inter-connection of the discharge connection.
As the preferred technical solution of the present invention, ball valve is installed on the tube wall of the outer tube I.
As the preferred technical solution of the present invention, ring flat-plate hole is provided with the ring flat-plate I, ball valve, ball are installed on ring flat-plate hole
Dielectric leakage alarm sensor is installed, the sensor is connected by signal wire with long-distance monitorng device circuit on valve.
As the preferred technical solution of the present invention, gusset is provided between the ring flat-plate II and outer tube II, gusset is simultaneously
It is welded and fixed with ring flat-plate II and outer tube II.
As the preferred technical solution of the present invention, the discharge connection outer wall on the right side of ring flat-plate III is provided with otic placode, otic placode
It is connected by pull bar with the outer wall of outer tube II.
The beneficial effects of the invention are as follows：Relative to prior art, after expansion joint of the present invention is passed through medium in pipeline, medium
It can enter in the exterior chamber of bellows, i.e. external-compression type working method.The pulling force and pressure that expansion joint is subject in pipeline extension
Power mutually balances, and axially stablizes preferable, and pipeline is not susceptible to twist.Even if bellows is because fatigue failure leaks, expansion joint
The filler of filler chamber can play preferable sealing function.
The present invention is provided with on-line monitoring warning device, spring pressure ring automatic-sealed and guider, can also be by adding
Geat injects airtight and watertight padding, strengthens the sealing property of expansion joint, the long-term reliable sealing for keeping expansion joint, realizes online prison in real time
Control, automatic-sealed, automatic guide and non-maintaining.The present invention is not easy to leak, service life is long, maintenance cost is low, work safety can
Lean on.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the mplifying structure schematic diagram at A in Fig. 1.
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, leakage alarm sensor, 17, airtight and watertight padding, 18, bellows III, 19, collar aperture, 20, bellows II, 21, end ring I,
22nd, 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.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings：
As depicted in figs. 1 and 2, the non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing, including enter
Mouth adapter 1, mozzle 15, discharge connection 14 and two or more outer tube and bellows；The inner surface of the entrance sleeve 1 with
Mozzle 15 is connected, and mozzle 15 is extend into discharge connection 14, and the outer surface of entrance sleeve 1 passes through ring flat-plate I 2 and outer tube I 5
Left end connection, 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, the right-hand member and ring of outer tube II 9
Plate III 10 connects, and ring flat-plate III 10 is set in the outer surface of discharge connection 14, is provided with outer tube III 4 in the inner chamber of outer tube I 5, outside
The inner side of sleeve pipe III 4 is provided with bellows III 18, and the outside of outer tube III 4 is provided with bellows I 3, is provided with the inner chamber of outer tube II 9
Bellows II 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 and outer tube III 4
Connect, the left end of bellows II 20 is connected with outer tube III 4, and the right-hand member of bellows II 20 is connected with ring flat-plate III 10, bellows III 18
Left end be connected with the left end of outer tube 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, is provided with airtight and watertight padding 17 in filler chamber 13, filler chamber 13 is by loading pipe
Formed with filler flange 25, filler flange 25 is connected by screw rod 26 with ring flat-plate III 10, and the outer wall of filler chamber 13 is provided with filler
Filler, filler are provided with dielectric leakage alarm sensor 16, and sensor 16 is connected by signal wire and long-distance monitorng device circuit
Connect.The outside of filler flange 25 is provided with pressure ring 27, and pressure ring 27 is connected by the spring 29 being set on screw rod 26 with filler flange 25,
The screw rod end in the outside of pressure ring 27 is provided with nut, and the contact surface of the pressure ring 27 and discharge connection 14 is provided with groove, is provided with groove
SDeflector 28.
In the present embodiment, the right-hand member of outer tube III 4 is welded and fixed by the outer surface of end ring II 22 and 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 passes through end ring III 23 and outer tube
III 4 left end is welded and fixed.
Collar aperture 19 is provided with the tube wall of the present embodiment outer tube III 4 so that outer tube I 5 forms interior with bellows I 3
The intracavity inter-connection of chamber and 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,
Ball valve is installed on ring flat-plate hole 24, dielectric leakage alarm sensor 16 is installed, sensor 16 is by signal wire and far on ball valve
Range monitoring device circuit connects.Be provided with gusset 8 between ring flat-plate II 7 and outer tube II 9, gusset 8 simultaneously with ring flat-plate II 7 and overcoat
Pipe II 9 is welded and fixed.The outer wall of discharge connection 14 on the right side of ring flat-plate III 10 is provided with otic placode 12, and otic placode 12 passes through pull bar 11 and overcoat
The outer wall connection of pipe II 9.Pull bar 11 and otic placode 12 are mainly used in fixed and protect expansion joint, avoid product from packing and transporting
It is damaged in journey, needs to remove pull bar 11 when expansion joint is installed to the operating position in pipeline.
Claims (8)
1. a kind of non-maintaining self- steering sealed expansion joint of on-line monitoring 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 is stretched
Enter into discharge connection, the outer surface of entrance sleeve is connected by ring flat-plate I with the left end of outer tube I, and the right-hand member of outer tube I passes through
Ring flat-plate II is connected with the left end of outer tube II, and the right-hand member of outer tube II is connected with ring flat-plate III, and ring flat-plate III is set in discharge connection
Outer surface, 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, outside
The outside of sleeve pipe III 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 airtight and watertight padding is provided with filler chamber；The filler chamber is made up of loading pipe and filler flange, and filler flange leads to
Screw rod to be crossed to be connected with ring flat-plate III, the outer wall of filler chamber is provided with filling mouth, and filler is provided with dielectric leakage alarm sensor,
The sensor is connected by signal wire with long-distance monitorng device circuit；Pressure ring is provided with the outside of filler flange, pressure ring is by being set in
Spring on screw rod is connected with filler flange, and the screw rod end on the outside of pressure ring is provided with nut, contact of the pressure ring with discharge connection
Face is provided with groove, and SDeflector is provided with groove.
2. the non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 1, it is special
Sign is：The right-hand member of the outer tube III is welded and fixed by the outer surface of end ring II and discharge connection, the left end of bellows II
It is connected by end ring II with outer tube III.
3. the non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 1, it is special
Sign is：The left end of the bellows III is welded and fixed by the left end of end ring III and outer tube III.
4. the non-maintaining self- steering sealing of on-line monitoring external pressure straight pipe pressure-equalizing according to any one of claims 1 to 3 is swollen
Swollen section, it is characterized in that：Be provided with collar aperture on the tube wall of the outer tube III so that the inner chamber that outer tube I and bellows I are formed with
The intracavity inter-connection of the discharge connection.
5. the non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 4, it is special
Sign is：Ball valve is installed on the tube wall of the outer tube I.
6. the non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 4, it is special
Sign is：Ring flat-plate hole is provided with the ring flat-plate I, ball valve is installed on ring flat-plate hole, dielectric leakage alarm sensor is installed on ball valve,
The sensor is connected by signal wire with long-distance monitorng device circuit.
7. the non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 1, it is special
Sign is：Gusset is provided between the ring flat-plate II and outer tube II, gusset is welded and fixed with ring flat-plate II and outer tube II simultaneously.
8. the non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 1, it is special
Sign is：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 |
|---|---|---|---|
| CN201610793938.2A CN107795786A (en) | 2016-08-31 | 2016-08-31 | The non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793938.2A CN107795786A (en) | 2016-08-31 | 2016-08-31 | The non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107795786A true CN107795786A (en) | 2018-03-13 |
Family
ID=61529588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610793938.2A Pending CN107795786A (en) | 2016-08-31 | 2016-08-31 | The non-maintaining self- steering sealed expansion joint of on-line monitoring external pressure straight pipe pressure-equalizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107795786A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630906A (en) * | 2019-02-19 | 2019-04-16 | 常州大学 | A kind of detachable pipeline leakage testing device and its detection method |
| CN114935060A (en) * | 2022-06-10 | 2022-08-23 | 丁丰 | Radial-movement-preventing intelligent composite corrugated compensator |
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|---|---|---|---|---|
| GB613350A (en) * | 1945-10-08 | 1948-11-25 | Metallschlauchfabrik Ag | Improvements in or relating to pipe expansion joints |
| CN201129590Y (en) * | 2007-12-21 | 2008-10-08 | 秦皇岛市泰德管业科技有限公司 | Special external pressure type straight pipe pressure equilibrium type corrugated pipe expansion node for coal gasification apparatus |
| CN202708450U (en) * | 2012-07-10 | 2013-01-30 | 南京晨光东螺波纹管有限公司 | Coal chemical special pressure balancing type expansion joint |
| CN103133810A (en) * | 2013-02-25 | 2013-06-05 | 吉慧萍 | Maintenance-free self-regulation compensator |
| CN103836293A (en) * | 2014-03-21 | 2014-06-04 | 江苏鑫晟波纹管有限公司 | Novel direct burial anticorrosion bellow expansion joint |
| CN203847883U (en) * | 2014-04-22 | 2014-09-24 | 江苏苏创管业科技有限公司 | Maintenance-free self-sealing sleeve compensator |
| CN204062304U (en) * | 2014-07-18 | 2014-12-31 | 邵军 | Straight pipe pressure-balancing type expansion joint |
| CN204785282U (en) * | 2015-07-13 | 2015-11-18 | 吉慧萍 | Press non -maintaining sealed three -dimensional compensator in online warning |
| CN105715899A (en) * | 2014-12-02 | 2016-06-29 | 江苏恒丰波纹管有限公司 | Maintenance-free compensator provided with online detecting device |
| CN206112374U (en) * | 2016-08-31 | 2017-04-19 | 吉慧萍 | Non -maintaining self -steering of on -line monitoring external pressure straight tube pressure balance seals expansion joint |
-
2016
- 2016-08-31 CN CN201610793938.2A patent/CN107795786A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB613350A (en) * | 1945-10-08 | 1948-11-25 | Metallschlauchfabrik Ag | Improvements in or relating to pipe expansion joints |
| CN201129590Y (en) * | 2007-12-21 | 2008-10-08 | 秦皇岛市泰德管业科技有限公司 | Special external pressure type straight pipe pressure equilibrium type corrugated pipe expansion node for coal gasification apparatus |
| CN202708450U (en) * | 2012-07-10 | 2013-01-30 | 南京晨光东螺波纹管有限公司 | Coal chemical special pressure balancing type expansion joint |
| CN103133810A (en) * | 2013-02-25 | 2013-06-05 | 吉慧萍 | Maintenance-free self-regulation compensator |
| CN103836293A (en) * | 2014-03-21 | 2014-06-04 | 江苏鑫晟波纹管有限公司 | Novel direct burial anticorrosion bellow expansion joint |
| CN203847883U (en) * | 2014-04-22 | 2014-09-24 | 江苏苏创管业科技有限公司 | Maintenance-free self-sealing sleeve compensator |
| CN204062304U (en) * | 2014-07-18 | 2014-12-31 | 邵军 | Straight pipe pressure-balancing type expansion joint |
| CN105715899A (en) * | 2014-12-02 | 2016-06-29 | 江苏恒丰波纹管有限公司 | Maintenance-free compensator provided with online detecting device |
| CN204785282U (en) * | 2015-07-13 | 2015-11-18 | 吉慧萍 | Press non -maintaining sealed three -dimensional compensator in online warning |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630906A (en) * | 2019-02-19 | 2019-04-16 | 常州大学 | A kind of detachable pipeline leakage testing device and its detection method |
| CN114935060A (en) * | 2022-06-10 | 2022-08-23 | 丁丰 | Radial-movement-preventing intelligent composite corrugated compensator |
| CN114935060B (en) * | 2022-06-10 | 2023-08-15 | 丁丰 | Radial-movement-preventing intelligent composite corrugated compensator |
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Application publication date: 20180313 |