CN104864202A - Double-wave three-hinged expansion joint - Google Patents
Double-wave three-hinged expansion joint Download PDFInfo
- Publication number
- CN104864202A CN104864202A CN201510234928.0A CN201510234928A CN104864202A CN 104864202 A CN104864202 A CN 104864202A CN 201510234928 A CN201510234928 A CN 201510234928A CN 104864202 A CN104864202 A CN 104864202A
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- CN
- China
- Prior art keywords
- hinged
- expansion joint
- hinge plate
- double
- articulated slab
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- 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
-
- 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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
- F16L27/125—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement having longitudinal and rotary movement
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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
- F16L51/04—Expansion-compensation arrangements for pipe-lines making use of bends, e.g. lyre-shaped
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to an expansion joint, in particular to a double-wave three-hinged expansion joint pertaining to the technical field of fluid-conveying pipelines. The expansion joint comprises a rounded elbow (5) located in the middle. Two ends of the rounded elbow (5) are communicated with corresponding joining pipes (1, 10) by means of flexible pipe joints (3, 8). The joining pipes (1, 10) are fixedly connected with hinge plates (2, 9) extending towards the direction of the rounded elbow (5). Two ends of the rounded elbow (5) are fixedly connected with hinged plates (4, 6) extending towards the corresponding joining pipes (1, 10). One of the hinged plates is hinged onto a corresponding hinge plate by means of a hinge piece (7) with hinged holes at two ends in order to form a double-hole hinged structure. The other one of the hinged plates is directly hinged onto a corresponding hinge plate in order to form a signal-double hinged structure. The double-wave three-hinged expansion joint has following beneficial effects: only two flexible joints are utilized for properly making three-dimensional displacement compensation; and by means of dynamic integration between double and signal hinges, thrust force produced by pipelines and pipeline weight can be favorably borne in order to keep a pipeline system operating normally for a long time.
Description
Technical field
The present invention relates to a kind of expansion joint, especially a kind of double wave three cuts with scissors expansion joint, belongs to technical field of fluid transportation pipelines.
Background technique
According to the applicant understood, existing free style elastomer connector, under absorption three-dimensional (X, Y, Z) misalignment, can not bear thrust and pipeline weight that in pipeline, pressure produces; Although can bear with pull bar elastomer connector the thrust and pipeline weight, the only displacement of Absorbable rod two Vertical direction that in pipeline, pressure produces; The door assembly with hinge and glass in right hand and left elastomer connector of paired application, although the thrust and pipeline weight, the only displacement of an Absorbable rod Vertical direction that can bear that in pipeline, pressure produces.
In addition, the existing band draw-bar balance-type expansion joint be made up of two elastomer connectors can bear in pipeline the thrust of pressing generation, also can absorb three-dimensional (X, Y, Z) displacement, but can not bear pipeline weight.And two elastomer connectors are necessary for straight line and connect, and need arrange balance end, occupy large installing space, balance end also need arrange suspension bracket.
In order to absorb three-dimensional (X, Y, Z) displacement, can bear again thrust and pipeline weight that in pipeline, pressure produces, the metal corrugated pipe expansion joint of layout is cut with scissors in employing three of having to, and result must cause complex structure, install inconvenience, cost up.
Summary of the invention
The object of the invention is to: for above-mentioned prior art Problems existing, propose a kind ofly to bear pressure produces in pipeline thrust and pipeline weight simultaneously and absorb three-dimensional (X, Y, Z) displacement, and the simple double wave three of structure cuts with scissors expansion joint, thus conveniently install, reduce costs, be conducive to ensureing pipe-line system operation reliably and with long-term.
In order to reach above object, the basic technical scheme that double wave three of the present invention cuts with scissors expansion joint is, comprise and be positioned at middle fillet elbow (5), described fillet elbow (5) two ends are communicated with corresponding adapter (1,10) respectively by flexible pipe joint (3,8); Described adapter (1,10) is fixed with the hinge plate (2,9) extended towards described fillet elbow (5) direction, the two ends of described fillet elbow (5) are connected towards the articulated slab (4,6) extended adapter (1,10) direction respectively, the hinge plate (7) that one of described articulated slab has hinging hole by two ends is hinged with corresponding hinge plate---and form diplopore hinge structure, another is directly hinged with corresponding hinge plate for described articulated slab---form single hole hinge structure.
Like this, the flexible joint of diplopore hinge and correspondence thereof forms a single ripple two-hinged structure; And the flexible joint at another place and the single hole hinge of correspondence thereof form a single ripple list hinge structure, both combinations just constitute a double wave three and cut with scissors structure.In work, the thrust that in pipeline, pressure produces and pipeline weight are delivered on diplopore hinge, single hole hinge and bearing pin set on expansion joint by adapter and elbow, the hinge member be made up of diplopore hinge, single hole hinge and bearing pin bears, ensure that extraordinary distortion can not occur expansion joint, and without the need to separately establishing support to bear these active forces.When there is Z-direction or X to displacement, compensated by single ripple two-hinged structure lateral deformation, it is deformation-compensated that the axial dimension change produced during lateral displacement cuts with scissors structure angle by single ripple two-hinged structure and single ripple list; And when there is Y-direction displacement, then cut with scissors the angular distortion hybrid compensation of structure by single ripple two-hinged structure and single ripple list.
Therefore, compared with prior art, only just properly settled the bit shift compensation of three-dimensional (X, Y, Z) with two flexible joints, and two, the simple hinge that organically combine more are conducive to effectively bearing thrust and the pipeline weight of pressure generation in pipeline, keep pipe-line system normally to run for a long time.
It is that described hinge plate, articulated slab and hinge plate are distributed in pipe bending plane both sides respectively in pairs that the present invention further improves, and the axis of each articulating point is respectively perpendicular to the pipe centerline of corresponding position.Be understood that, effect of the present invention can be made so more stable.
It is that the axis of described each articulating point is crossing with the pipe centerline of corresponding position respectively that the present invention further improves.The load state that can be optimized like this.
Further improve and also have: the extending end of described hinge plate and articulated slab is cantilever structure, and the other end and middle part are then connected with corresponding adapter or pipe elbow by supporting element.One of described articulated slab has the two panels hinge plate clamping of hinging hole by two ends, hinged with corresponding hinge plate.Another corresponding hinge plate directly welding holding sheet with termination of described articulated slab is hinged.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the B-B sectional view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 1.
Fig. 4 is that Fig. 1 embodiment Z, X are to the schematic diagram of mechanism before distortion.
Fig. 5 is that Fig. 1 embodiment absorbs Z, X to the schematic diagram of mechanism after distortion.
Fig. 6 is the partial structurtes schematic diagram before the distortion of Fig. 1 embodiment Y-direction.
Fig. 7 is the partial structurtes schematic diagram after Fig. 1 embodiment absorbs Y-direction distortion.
Embodiment
Embodiment one
The double wave three of the present embodiment cuts with scissors expansion joint as shown in Figure 1, 2, 3, comprises and is positioned at 90 ° of middle fillet elbows 5, and these fillet elbow 5 two ends are respectively by rubber fittings 3,8 and be communicated with corresponding adapter 1,10 with fastening piece by flange port.Adapter 1,10 is fixed with respectively a pair hinge plate 2,9 extended towards fillet elbow 5 direction, paired hinge plate is symmetrically distributed in pipe bending plane both sides respectively.The two ends of fillet elbow 5 are connected respectively towards the articulated slab 4,6 extended adapter 1,10 direction.The extending end of hinge plate 2,9 and articulated slab 4,6 is all in cantilever structure, and the other end and middle part are then connected with corresponding adapter or pipe elbow welding by supporting element.
The two panels hinge plate 7 that articulated slab 9 has hinging hole by two ends clamps, hinged with corresponding hinge plate 6, thus forms single ripple diplopore hinge structure, and articulated slab 2 directly welds holding sheet corresponding hinge plate 4 with termination is hinged, forms single ripple single hole hinge structure.
So single ripple diplopore hinge, elbow and single ripple single hole hinge define a double wave (namely two places flexibly connect) three and cut with scissors structure.In work, the thrust that in pipeline, pressure produces and pipeline weight are delivered on diplopore hinge, single hole hinge and hinged bearing pin thereof by adapter and elbow, the hinge member be made up of diplopore hinge, single hole hinge and bearing pin thereof bears, ensure expansion joint can not deform and installation system without the need to arranging support to bear these active forces.
When there is Z-direction or X to displacement, as shown in Figure 4,5, compensated by single ripple two-hinged structure lateral deformation, it is deformation-compensated that the axial dimension change produced during lateral displacement cuts with scissors structure angle by single ripple two-hinged structure and single ripple list.When there is Y-direction displacement, as shown in Figure 6,7, the angular distortion hybrid compensation of structure hinged place matching gap permission is cut with scissors in displacement by single ripple two-hinged structure and single ripple list.
As can be seen here, owing to only just having properly settled the bit shift compensation of three-dimensional (X, Y, Z) with two rubber flexible joints simultaneously, and two, the simple hinge that organically combine more are conducive to effectively bearing thrust and the pipeline weight of pressure generation in pipeline, therefore after adopting the present embodiment, cost is more economical, install more convenient, and the long-term normal of pipe-line system can be kept to run.
In addition to the implementation, the present invention can also have other mode of executions, such as described in the present invention and elastomer connector also can change metal bellows, plastic film capicitor etc. into.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (6)
1. double wave three cuts with scissors an expansion joint, and comprise and be positioned at middle fillet elbow (5), described fillet elbow (5) two ends are communicated with corresponding adapter (1,10) respectively by flexible pipe joint (3,8); It is characterized in that: described adapter (1,10) is fixed with the hinge plate (2,9) extended towards described fillet elbow (5) direction, the two ends of described fillet elbow (5) are connected towards the articulated slab (4,6) extended adapter (1,10) direction respectively, the hinge plate (7) that one of described articulated slab has hinging hole by two ends is hinged with corresponding hinge plate, and another is directly hinged with corresponding hinge plate for described articulated slab.
2. double wave three according to claim 1 cuts with scissors expansion joint, it is characterized in that: described hinge plate, articulated slab and hinge plate are distributed in pipe bending plane both sides respectively in pairs, and the axis of each articulating point is respectively perpendicular to the pipe centerline of corresponding position.
3. double wave three according to claim 1 and 2 cuts with scissors expansion joint, it is characterized in that: the axis of described each articulating point is crossing with the pipe centerline of corresponding position respectively.
4. double wave three according to claim 3 cuts with scissors expansion joint, it is characterized in that: the extending end of described hinge plate and articulated slab is cantilever structure, and the other end and middle part are then connected with corresponding adapter or pipe elbow by supporting element.
5. double wave three according to claim 4 cuts with scissors expansion joint, it is characterized in that: one of described articulated slab has the two panels hinge plate clamping of hinging hole by two ends, hinged with corresponding hinge plate.
6. double wave three according to claim 5 cuts with scissors expansion joint, it is characterized in that: another corresponding hinge plate directly welding holding sheet with termination of described articulated slab is hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510234928.0A CN104864202A (en) | 2015-05-11 | 2015-05-11 | Double-wave three-hinged expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510234928.0A CN104864202A (en) | 2015-05-11 | 2015-05-11 | Double-wave three-hinged expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104864202A true CN104864202A (en) | 2015-08-26 |
Family
ID=53910238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510234928.0A Pending CN104864202A (en) | 2015-05-11 | 2015-05-11 | Double-wave three-hinged expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104864202A (en) |
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2015
- 2015-05-11 CN CN201510234928.0A patent/CN104864202A/en active Pending
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150826 |