CN206268697U - 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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- CN206268697U CN206268697U CN201621022716.2U CN201621022716U CN206268697U CN 206268697 U CN206268697 U CN 206268697U CN 201621022716 U CN201621022716 U CN 201621022716U CN 206268697 U CN206268697 U CN 206268697U
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Abstract
The utility model is related 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；It is provided with outer tube I and bellows III is provided with outer tube III, outer tube III, the outside of outer tube III is provided with bellows I, outer tube II and is provided with bellows 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 stabilization of the utility model expansion joint is preferable, and pipeline is not susceptible to twisting.Bellows is if there is leakage, energy and alarm.The utility model strengthens the sealing property of expansion joint by filling mouthful injection airtight and watertight padding, the long-term reliable sealing for keeping expansion joint, realizes on-line monitoring, automatic-sealed and non-maintaining.It is low, safe and reliable that the utility model is difficult leakage, long service life, maintenance cost.
Description
Technical field
The utility model is related to pipeline compensator technical field, and especially one kind is provided with on-line monitoring and alarms and automatic close
Seal apparatus, using the maintenance-free corrugated tube expansion joint of external pressure straight pipe pressure balance type.
Background technology
Heat supply pipeline need segmentation 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.After medium being passed through in pipeline, medium
Can enter into the inner chamber of bellows, 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-term use, because the stroke that heat supply pipeline is produced is larger, the wave number of bellows is more, the ripple of expansion joint
Tube capacity easily can make whole expansion joint fail because leakage, inner pressed bellows occurs in fatigue 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 because fail in time find leakage and failure expansion joint, so as to cause generation industrial accident.
Utility model content
The purpose of this utility model is to provide one kind and is provided with on-line monitoring warning device and automatic sealing device, reliability compared with
Height, is difficult leakage, long service life, and non-maintaining external pressure straight-pipe pressure balanced expansion joint is realized during use.
The purpose of this utility model 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 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
Left end with outer tube II is connected, 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 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, 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, bellows I
Right-hand member be connected with outer tube III by end ring I, 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；Described 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 is provided with dielectric leakage alarm sensor, and the sensor is connected by holding wire with long-distance monitorng device circuit；
Filler flange outside is provided with pressure ring, and 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.
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.
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, ring flat-plate is provided with ball on hole
Valve, is provided with dielectric leakage alarm sensor on ball valve, the sensor is connected by holding wire with long-distance monitorng device circuit.
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 into 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 stabilization is preferable, and 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 on-line monitoring alarm and spring pressure ring automatic sealing device, can also be noted by filler
Enter airtight and watertight padding, strengthen the sealing property of expansion joint, the long-term reliable sealing for keeping expansion joint, realize on line real-time monitoring, from
Dynamic device and non-maintaining.It is low, safe and reliable that the utility model is difficult leakage, long service life, maintenance cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
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.
Specific embodiment
The utility model is described in further detail 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, 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 the ring flat-plate III 10 is provided with filler chamber 13, filler chamber 13 and is provided with airtight and watertight padding 17, and filler chamber 13 is by filling out
Expects pipe and filler flange 25 are constituted, 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 mouthful, filler is provided with dielectric leakage alarm sensor 16, and sensor 16 is by holding 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 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 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 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,
Ball valve is installed on ring flat-plate hole 24, dielectric leakage alarm sensor 16 is installed on ball valve, sensor 16 by holding wire with it is remote
Range monitoring device circuit is connected.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, it is to avoid product is being packed and transported
It is damaged in journey, needs to remove pull bar 11 at the operating position during expansion joint is installed to pipeline.
Claims (6)
1. the non-maintaining self-sealing expansion section of a kind 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 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
Left end with outer tube III is connected, and 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；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, the outer wall of filler chamber is provided with filling mouthful, and filler is provided with dielectric leakage alarm sensor,
The sensor is connected by holding wire with long-distance monitorng device circuit；Filler flange outside is provided with pressure ring, and 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；
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；Institute
The discharge connection outer wall for stating 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.
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 end ring II with the outer surface of discharge connection, and the left end of the bellows II is by 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 end ring III with the left end of 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 the inner chamber that outer tube I and bellows I are constituted 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 holding wire with long-distance monitorng device circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621022716.2U CN206268697U (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 |
|---|---|---|---|
| CN201621022716.2U CN206268697U (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 |
|---|---|
| CN206268697U true CN206268697U (en) | 2017-06-20 |
Family
ID=59036487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621022716.2U Active CN206268697U (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) | CN206268697U (en) |
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2016
- 2016-08-31 CN CN201621022716.2U patent/CN206268697U/en active Active
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