CN106151759B - External pressure lateral type expansion joint - Google Patents
External pressure lateral type expansion joint Download PDFInfo
- Publication number
- CN106151759B CN106151759B CN201610705528.8A CN201610705528A CN106151759B CN 106151759 B CN106151759 B CN 106151759B CN 201610705528 A CN201610705528 A CN 201610705528A CN 106151759 B CN106151759 B CN 106151759B
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- CN
- China
- Prior art keywords
- bellows
- adapter
- adapter tube
- fagging
- outside casing
- 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.)
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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
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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
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations
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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
- F16L51/028—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with the expansion or contraction of each corrugation being limited
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of external pressure lateral type expansion joint, including left adapter tube and right adapter tube, left adapter tube connects left outside casing, is equipped with left bellows in left outside casing, left outside casing is connect in end by left pressure-bearing ring flat-plate with left bellows；Right adapter tube connects right outer tube, is equipped with right bellows in right outer tube, right adapter tube is connect in end by right pressure-bearing ring flat-plate with right bellows；It further include the middle adapter in left bellows and right bellows, middle adapter both ends are connect with left bellows with the other end of right bellows respectively；Left inside lining is equipped in left outside casing, left inside lining free end is set to left bellows interior；Middle adapter, which is located inside one end of right bellows, is equipped with right inside lining sleeve, and right inside lining sleeve free end is set in right adapter tube.Using the Multilayer U-shaped Bellows ' composite structure by two groups of external-compression types, column destabilization problems are avoided, make product under high pressure-temperature operating condition, there is biggish lateral compensation ability, can satisfy the demand of live long distance line compensation ability.
Description
Technical field
The present invention relates to expansion joint field, specifically a kind of external pressure lateral type expansion joint.
Background technique
Central heating project in cities and towns is always the state key people's livelihood engineering personally lived concerning the people, with social resident
Population be continuously increased and the growth requirement of national economy, heat demand amount is in rising year by year trend, high pressure, bigbore large size
Central heating pipe is come into being, and then to the lateral compensation ability of heat supply pipeline expansion joint, more stringent requirements are proposed.With
It is usually internal pressure lateral type type metal expansion joint in the expansion joint for absorbing lateral displacement, the internal pressure lateral type expansion joint of the prior art exists
It under high pressure operating condition, when required lateral compensation rate is larger, is limited due to there are column destabilization problems, along with corrosion and fatigue etc.
Reason is possible to bellows leakage phenomenon occur, once leaking, it is out of service suddenly to will lead to central heating pipe, need to stop
Gas, maintenance of cutting off the water can bring great inconvenience to production and resident living.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of external pressure lateral type expansion joint.
Technical solution: in order to solve the above technical problems, a kind of external pressure lateral type expansion joint of the invention, including left adapter tube with
Right adapter tube, left adapter tube connect left outside casing, are equipped with left bellows in left outside casing, left outside casing passes through with left bellows in end
Left pressure-bearing ring flat-plate connection；Right adapter tube connects right outer tube, is equipped with right bellows in right outer tube, right adapter tube is being held with right bellows
Portion is connected by right pressure-bearing ring flat-plate；It further include the middle adapter in left bellows and right bellows, middle adapter both ends point
It is not connect with left bellows with the other end of right bellows；Left inside lining, left inside lining free end are equipped in left outside casing
Set on left bellows interior；Middle adapter, which is located inside one end of right bellows, is equipped with right inside lining sleeve, and right inside lining sleeve free end is set
In in right adapter tube.
Wherein, the fagging being equipped with outside left adapter tube, left fagging connect left outside casing；Right fagging is equipped with outside right adapter tube, it is right
Fagging connects right outer tube.
Wherein, it is equipped with multiple left floors between left adapter tube and left fagging, multiple right ribs are equipped between right adapter tube and right fagging
Plate.
Wherein, multiple big pull rods are equipped between left fagging and right fagging, each big pull rod both ends pass through nut and left fagging
It is fixed with right fagging.
Wherein, telescopic connection component is equipped between left outside casing and right outer tube, connection component is for balancing left wave
The compensation rate of line pipe and right bellows, and support middle adapter.
Wherein, connection component includes the multiple groups bracket being separately positioned on the outside of left outside casing and right outer tube, each pack support
Between be equipped with four-bar mechanism, four-bar mechanism includes two short connecting rods hinged with each bracket respectively and arranged in a crossed manner
The end of two root long connecting rods, each long connecting rod is hinged respectively at corresponding short connecting rod end, constitutes one group of diamond shape frame, arranged in a crossed manner
Two root long connecting rods it is hinged with middle adapter in intersection.
Wherein, connection component further includes the cardo ring on the outside of middle adapter, and two root long connecting rods arranged in a crossed manner are being handed over
It is hinged with cardo ring at crunode.
The utility model has the advantages that a kind of external pressure lateral type expansion joint of the invention, has the advantages that
1, using the Multilayer U-shaped Bellows ' composite structure by two groups of external-compression types, column destabilization problems is avoided, make product in height
Under super pressure-high temperature operating condition, there is biggish lateral compensation ability, can satisfy the demand of live long distance line compensation ability；
2, four-bar mechanism is added, the lateral displacement of all directions is met, balance the compensation rate of two sides bellows and is had
Limit function prevents product excessive tensile, while bearing the weight of middle adapter, and bellows load-bearing is avoided to deform, and guarantees product
Overall stability.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the left view of Fig. 1, and the upper half is that for A to cross-sectional view, lower half is B direction view in Fig. 1, lower half in Fig. 1 in figure
Portion has concealed bracket and four-bar mechanism.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
A kind of external pressure lateral type expansion joint as shown in Figure 1 and Figure 2, including left adapter tube 1 and right adapter tube 16, left adapter tube 1 connect
Left outside casing 5, coaxial sleeve is equipped with left bellows 6 in left outside casing 5, and left outside casing 5 passes through left pressure-bearing in end with left bellows 6
Ring flat-plate 7 connects；Right adapter tube 16 connects right outer tube 11, and coaxial sleeve is equipped with right bellows 12 in right outer tube 11, right adapter tube 16 and
Right bellows 12 is connected in end by right pressure-bearing ring flat-plate 10；It further include in being arranged in left bellows 6 and right bellows 12
Between adapter tube 8,8 both ends of middle adapter are welded with left bellows 6 and the other end of right bellows 12 respectively；In left outside casing 5
It is also equipped with left inside lining 4, left inside 4 free end of lining is arranged inside left bellows 6；Middle adapter 8 is located at right bellows 12
One end be internally connected with right inside lining sleeve 13, right 13 free end of inside lining sleeve is placed in right adapter tube 16.Left 1 outside weldings of adapter tube have a left side
Fagging 3, left fagging 3 are welded with left outside 5 one end of casing；Right 16 outside weldings of adapter tube have right fagging 14, right fagging 14 and outer tube
The welding of 11 one end.It is welded with multiple left floors 2 between left adapter tube 1 and left fagging 3, is welded between right adapter tube 16 and right fagging 14 more
A right floor 15.Multiple big pull rods 17 are also installed between left fagging 3 and right fagging 14, each big 17 both ends of pull rod by nut with
Left fagging 3 and right fagging 14 are fixed.Telescopic connection component, connection component are set between left outside casing 5 and right outer tube 11
For balancing the compensation rate of left bellows 6 and right bellows 12, and support middle adapter 8.Connection component includes being separately positioned on
The multiple groups bracket of left outside casing 5 and right 11 outside of outer tube installs four-bar mechanism between each pack support, and four-bar mechanism includes
The two piece short connecting rods 18 and arranged in a crossed manner two root long connecting rods 19 hinged with each bracket respectively, the end part of each long connecting rod 19
It is not hinged in corresponding 18 end of short connecting rod, one group of diamond shape frame is constituted, two root long connecting rods 19 arranged in a crossed manner are in intersection
It is hinged with middle adapter 8.Connection component further includes the cardo ring 9 set on 8 outside of middle adapter, two root long connecting rods arranged in a crossed manner
19 is hinged in intersection and cardo ring 9.
Left bellows 6 and right bellows 12 are that strong bellows is not added in Multi-layer U-shape, raise design, it is made to bear external pressure
Effect, closing and flexing resistance are good, and column destabilization problems are not present, in addition the combination of left fagging 3 and right fagging 14 and big pull rod 17,
Make compensator that big lateral displacement can be absorbed under high pressure operating condition；Two groups of compound four-bar mechanisms of Double Diamond, are connected by pin shaft
It connects at the middle part of middle adapter 8, both ends hinge point is connected to the left outside casing 5 and right outer tube of opposite ends also by pin shaft
On bracket on 11, four laterally hinging points retain a fixed spacing with the corresponding side surface of two bellowss respectively, meet all directions
Lateral compensation displacement, balance the compensation rate of two sides bellows, while supporting the weight of middle adapter 8, prevent bellows load-bearing
Deformation guarantees the overall stability of external pressure lateral type expansion joint.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of external pressure lateral type expansion joint, it is characterised in that: including left adapter tube and right adapter tube, left adapter tube connects left outside casing,
Left bellows is equipped in left outside casing, left outside casing is connect in end by left pressure-bearing ring flat-plate with left bellows；Right adapter tube connection
Right outer tube, right outer tube is interior to be equipped with right bellows, and right adapter tube is connect in end by right pressure-bearing ring flat-plate with right bellows；Also wrap
Include the middle adapter being set in left bellows and right bellows, middle adapter both ends are another with left bellows and right bellows respectively
One end connection；Left inside lining is equipped in left outside casing, left inside lining free end is set to left bellows interior；Middle adapter position
Right inside lining sleeve is equipped with inside one end of right bellows, right inside lining sleeve free end is set in right adapter tube.
2. external pressure lateral type expansion joint according to claim 1, it is characterised in that: wherein, the left side being equipped with outside left adapter tube
Fagging, left fagging connect left outside casing；Right fagging is equipped with outside right adapter tube, right fagging connects right outer tube.
3. external pressure lateral type expansion joint according to claim 2, it is characterised in that: wherein, between left adapter tube and left fagging
Equipped with multiple left floors, multiple right floors are equipped between right adapter tube and right fagging.
4. external pressure lateral type expansion joint according to claim 2, it is characterised in that: wherein, between left fagging and right fagging
Equipped with multiple big pull rods, each big pull rod both ends are fixed by nut and left fagging and right fagging.
5. external pressure lateral type expansion joint according to claim 1, it is characterised in that: wherein, left outside casing and right outer tube
Between be equipped with telescopic connection component, connection component is used to balance the compensation rate of left bellows Yu right bellows, and in support
Between take over.
6. external pressure lateral type expansion joint according to claim 5, it is characterised in that: wherein, connection component includes setting respectively
The multiple groups bracket on the outside of left outside casing and right outer tube is set, is equipped with four-bar mechanism, four-bar mechanism packet between each pack support
Include two short connecting rods and two root long connecting rods arranged in a crossed manner hinged with each bracket respectively, the end of each long connecting rod respectively at
Corresponding short connecting rod end is hinged, constitutes one group of diamond shape frame, and two root long connecting rods arranged in a crossed manner are indirect in intersection
Pipe is hinged.
7. external pressure lateral type expansion joint according to claim 6, it is characterised in that: wherein, connection component further includes being set to
Cardo ring on the outside of middle adapter, two root long connecting rods arranged in a crossed manner are hinged with cardo ring in intersection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610705528.8A CN106151759B (en) | 2016-08-22 | 2016-08-22 | External pressure lateral type expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610705528.8A CN106151759B (en) | 2016-08-22 | 2016-08-22 | External pressure lateral type expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106151759A CN106151759A (en) | 2016-11-23 |
| CN106151759B true CN106151759B (en) | 2019-05-10 |
Family
ID=57342476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610705528.8A Active CN106151759B (en) | 2016-08-22 | 2016-08-22 | External pressure lateral type expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106151759B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641549A (en) * | 2017-01-04 | 2017-05-10 | 南京晨光东螺波纹管有限公司 | Double universal four-connecting rod expansion joint capable of absorbing multi-plane transverse displacement |
| CN107143714A (en) * | 2017-04-25 | 2017-09-08 | 柳州市乾阳机电设备有限公司 | Expansion joint |
| CN107701845B (en) * | 2017-09-28 | 2020-06-30 | 哈尔滨锅炉厂有限责任公司 | Boiler expansion joint protection device and method |
| CN110939816A (en) * | 2019-12-30 | 2020-03-31 | 江苏丰禾机械制造股份有限公司 | Corrugated expansion joint special for ground belt |
Citations (8)
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|---|---|---|---|---|
| CN2337386Y (en) * | 1998-01-21 | 1999-09-08 | 南京晨光东螺波纹管有限公司 | Combined four-bar linkage type corrugated compensator |
| DE20319704U1 (en) * | 2003-12-19 | 2004-04-01 | Iwka Balg- Und Kompensatoren-Technologie Gmbh | Flexible pipe element with special bellows shaft geometry to improve its buckling behavior |
| CN202972352U (en) * | 2012-10-30 | 2013-06-05 | 洛阳双瑞特种装备有限公司 | Bent pipe pressure balancing type ball passing expansion joint for high temperature gas cooled reactor |
| CN203963368U (en) * | 2014-07-04 | 2014-11-26 | 北京兴达波纹管有限公司 | The inside and outside straight-tube pressure balanced compensator of pressing |
| CN203963367U (en) * | 2014-07-04 | 2014-11-26 | 北京兴达波纹管有限公司 | Knee pipe pressure balance type compensator with force equalization mechanism |
| CN203979751U (en) * | 2014-06-03 | 2014-12-03 | 江苏晨光波纹管有限公司 | Two-way without thrust direct built-in compensator |
| CN105864554A (en) * | 2016-05-18 | 2016-08-17 | 洛阳双瑞特种装备有限公司 | Pipeline-used expansion joint with second-level pressurization structure |
| CN205956635U (en) * | 2016-08-22 | 2017-02-15 | 南京晨光东螺波纹管有限公司 | Horizontal type expansion joint of external pressure |
-
2016
- 2016-08-22 CN CN201610705528.8A patent/CN106151759B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2337386Y (en) * | 1998-01-21 | 1999-09-08 | 南京晨光东螺波纹管有限公司 | Combined four-bar linkage type corrugated compensator |
| DE20319704U1 (en) * | 2003-12-19 | 2004-04-01 | Iwka Balg- Und Kompensatoren-Technologie Gmbh | Flexible pipe element with special bellows shaft geometry to improve its buckling behavior |
| CN202972352U (en) * | 2012-10-30 | 2013-06-05 | 洛阳双瑞特种装备有限公司 | Bent pipe pressure balancing type ball passing expansion joint for high temperature gas cooled reactor |
| CN203979751U (en) * | 2014-06-03 | 2014-12-03 | 江苏晨光波纹管有限公司 | Two-way without thrust direct built-in compensator |
| CN203963368U (en) * | 2014-07-04 | 2014-11-26 | 北京兴达波纹管有限公司 | The inside and outside straight-tube pressure balanced compensator of pressing |
| CN203963367U (en) * | 2014-07-04 | 2014-11-26 | 北京兴达波纹管有限公司 | Knee pipe pressure balance type compensator with force equalization mechanism |
| CN105864554A (en) * | 2016-05-18 | 2016-08-17 | 洛阳双瑞特种装备有限公司 | Pipeline-used expansion joint with second-level pressurization structure |
| CN205956635U (en) * | 2016-08-22 | 2017-02-15 | 南京晨光东螺波纹管有限公司 | Horizontal type expansion joint of external pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106151759A (en) | 2016-11-23 |
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