CN107781561A - The non-maintaining self-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing - Google Patents
The non-maintaining self-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing Download PDFInfo
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- CN107781561A CN107781561A CN201610786634.3A CN201610786634A CN107781561A CN 107781561 A CN107781561 A CN 107781561A CN 201610786634 A CN201610786634 A CN 201610786634A CN 107781561 A CN107781561 A CN 107781561A
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- Prior art keywords
- outer tube
- iii
- bellows
- ring flat
- plate
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Classifications
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- 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
Abstract
The present invention relates to the non-maintaining self-sealing expansion section 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；Filler chamber is provided with leakage alarm sensor and automatic sealing device.The axial direction of expansion joint of the present invention is stablized preferable, and pipeline is not susceptible to twist.Bellows is if there is leakage, energy 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 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 to be provided with on-line monitoring alarm and automatic-sealed dress
Put, 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 and automatic sealing device, and reliability 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-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing, including entrance sleeve, mozzle, outlet connect
Pipe and two or more outer tube and bellows；The inner surface of the entrance sleeve is connected with mozzle, and mozzle is extend into out
In mouth adapter, 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
It is connected with the left end 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,
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, and the outside of outer tube III is provided with
Bellows I, 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, bellows I
Right-hand member be connected by end ring I with outer tube III, the left end of the bellows II is connected with outer tube III, the right-hand member of bellows II
Be connected with the ring flat-plate III, the left end of the bellows III is connected with the left end of outer tube III, the right-hand member of bellows III with it is described
The outer surface connection of 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
Room is made up of loading pipe and filler flange, and filler flange is connected by screw rod with ring flat-plate III, and the outer wall of filler chamber is provided with filler
Filler, filler are provided with dielectric leakage alarm sensor, and 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 connected by the spring being set on screw rod with filler flange, the screw rod on the outside of pressure ring
End is provided with nut.
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 alarm and spring pressure ring automatic sealing device, can also be injected by filler close
Packing material, strengthen the sealing property of expansion joint, the long-term reliable sealing for keeping expansion joint, realize on line real-time monitoring, automatic dress
Put with it is non-maintaining.The present invention is not easy to leak, service life is long, maintenance cost is low, safe and reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
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, spring.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, the non-maintaining self-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing, including entrance sleeve 1, lead
Flow tube 15, discharge connection 14 and two or more outer tube and bellows；The inner surface of the entrance sleeve 1 connects with mozzle 15
Connect, mozzle 15 is extend into discharge connection 14, and the outer surface of entrance sleeve 1 is connected by the left end of ring flat-plate I 2 and 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, and 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, and 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 are connected with the outer surface of entrance sleeve 1.
The right side of the 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 filling out
Expects pipe and filler flange 25 are formed, and 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
Filling mouth, filler are provided with dielectric leakage alarm sensor 16, and sensor 16 passes through signal wire and long-distance monitorng device electricity
Road connects；The outside of filler flange 25 is provided with pressure ring, and pressure ring is connected by the spring 27 being set on screw rod 26 with filler flange 25,
The end of screw rod 26 on the outside of pressure ring is provided with nut.
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-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing, including entrance sleeve, mozzle, outlet
Adapter and two or more outer tube and bellows；The inner surface of the entrance sleeve is connected with mozzle, and mozzle is extend into
In 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 the appearance of discharge connection
Face, 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 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.
2. the non-maintaining self-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 1, it is characterized in that：
The right-hand member of the outer tube III is welded and fixed by the outer surface of end ring II and discharge connection, and the left end of bellows II passes through end
Ring II is connected with outer tube III.
3. the non-maintaining self-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 1, it is characterized in that：
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-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing according to any one of claims 1 to 3,
It is characterized in that：Be provided with collar aperture on the tube wall of the outer tube III so that outer tube I and the inner chamber that bellows I is formed with it is described
The intracavity inter-connection of discharge connection.
5. the non-maintaining self-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 4, it is characterized in that：
Ball valve is installed on the tube wall of the outer tube I.
6. the non-maintaining self-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 4, it is characterized in that：
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 biography
Sensor is connected by signal wire with long-distance monitorng device circuit.
7. the non-maintaining self-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 1, it is characterized in that：
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-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing according to claim 1, it is characterized in that：
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 |
|---|---|---|---|
| CN201610786634.3A CN107781561A (en) | 2016-08-31 | 2016-08-31 | The non-maintaining self-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610786634.3A CN107781561A (en) | 2016-08-31 | 2016-08-31 | The non-maintaining self-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107781561A true CN107781561A (en) | 2018-03-09 |
Family
ID=61451260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610786634.3A Withdrawn CN107781561A (en) | 2016-08-31 | 2016-08-31 | The non-maintaining self-sealing expansion section of on-line monitoring external pressure straight pipe pressure-equalizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107781561A (en) |
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2016
- 2016-08-31 CN CN201610786634.3A patent/CN107781561A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180309 |