CN109681712A - A kind of pressure self-balancing type expansion joint - Google Patents
A kind of pressure self-balancing type expansion joint Download PDFInfo
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- CN109681712A CN109681712A CN201910080694.7A CN201910080694A CN109681712A CN 109681712 A CN109681712 A CN 109681712A CN 201910080694 A CN201910080694 A CN 201910080694A CN 109681712 A CN109681712 A CN 109681712A
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- Prior art keywords
- component
- plate
- vertical plate
- bellows
- pull rod
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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 invention discloses a kind of pressure self-balancing type expansion joints, comprising: vertical plate component I, vertical plate component II, expansion joint ontology, ratio link assembly, stress pull rod I, stress pull rod II and pressure equalization module；Vertical plate component I and vertical plate component II are separately positioned on the left and right sides of expansion joint ontology；Ratio link assembly is welded and fixed by vertical plate component I and vertical plate component II；Vertical plate component I, stress pull rod I, pressure equalization module, stress pull rod II and vertical plate component II are sequentially connected.The present invention balances the pressure thrust of bellows generation by peripheral hardware pressure equalization module, reduces the outer dimension and length of bellows.
Description
Technical field
The invention belongs to pipe technology field more particularly to a kind of pressure self-balancing type expansion joints.
Background technique
When expansion joint is set in medium delivery pipe road, in order to absorb displacement and balance the internal pressure thrust of bellows, generally
Restricted type expansion joint is selected, generally selects straight pipe pressure-balancing type expansion joint when absorbing axial, a small amount of lateral displacement.
Straight pipe pressure-balancing type expansion joint is usually tied by two groups of operating waves, one group of balance wave, pipe nipple, end plate, pull rod etc.
Component composition.Wherein, the effective sectional area for balancing bellows is 2 times of effective sectional area for balancing bellows, and work bellows
As being with the internal pressure born in balance bellows, expansion joint balances work by the internal pressure thrust that balance bellows generates
Make the internal pressure thrust of bellows generation, counterbalance effect is realized, so that expansion joint does not generate pressure thrust to terminal device or nozzle.
As described above, straight pipe pressure-balancing type expansion joint at least need to be by two groups of work bellowss and one group of balance bellows group
At, and include associated structural member, so that the length of product is very long, cause not answering in the restricted occasion of installation length
With.On the other hand, in order to reach counterbalance effect, the effective sectional area for balancing bellows is the effective sectional area of work bellows
2 times, i.e. the diameter of balance bellows is 1.41 times of work bellows, and balance bellows is bigger than work bellows by 41%, therefore,
It is not available in the occasion of the size-constrained system of radially installed yet.
Summary of the invention
Technology of the invention solves the problems, such as: overcoming the deficiencies of the prior art and provide a kind of pressure self-balancing type expansion joint, leads to
Peripheral hardware pressure equalization module is crossed to balance the pressure thrust of bellows generation, reduces the outer dimension and length of bellows.
In order to solve the above-mentioned technical problem, the invention discloses a kind of pressure self-balancing type expansion joints, comprising: vertical plate component
I, vertical plate component II, expansion joint ontology, ratio link assembly, stress pull rod I, stress pull rod II and pressure equalization module；
Vertical plate component I and vertical plate component II are separately positioned on the left and right sides of expansion joint ontology；
Ratio link assembly is welded and fixed by vertical plate component I and vertical plate component II；
Vertical plate component I, stress pull rod I, pressure equalization module, stress pull rod II and vertical plate component II are sequentially connected.
In above-mentioned pressure self-balancing type expansion joint, further includes: bellows I, bellows II and middle adapter component；
Bellows I is connected with bellows II by middle adapter component；Wherein, bellows I is located at vertical plate component I and centre
Between adapter tube component, bellows II is between vertical plate component II and middle adapter component.
In above-mentioned pressure self-balancing type expansion joint, further includes: pipe nipple I, end plate I, ring flat-plate I, pipe nipple II, end plate II
With ring flat-plate II；
Pipe nipple I, end plate I and ring flat-plate I and pipe nipple II, end plate II and ring flat-plate II are symmetrical arranged；
Pipe nipple I is welded and fixed by vertical plate component I, and end plate I and ring flat-plate I are respectively perpendicular and are weldingly fixed on pipe nipple I；
One end of pipe nipple I is connect with one end of bellows I；
Pipe nipple II is welded and fixed by vertical plate component II, and end plate II and ring flat-plate II are respectively perpendicular and are weldingly fixed on pipe nipple
On II；One end of pipe nipple II is connect with one end of bellows II.
In above-mentioned pressure self-balancing type expansion joint, further includes: universal ring assemblies；
Universal ring assemblies are arranged at the axis line position of expansion joint ontology, universal ring assemblies connection middle adapter component with
Ratio link assembly passes the weight of middle adapter component by ratio link assembly, vertical plate component I and vertical plate component II respectively
It is handed to pipe nipple I and pipe nipple II, to eliminate the self weight of middle adapter component to the influence of crust deformation of bellows I and bellows II.
In above-mentioned pressure self-balancing type expansion joint, further includes: ring flat-plate III and ring flat-plate IV；
Ring flat-plate III and ring flat-plate IV are symmetricly set on the both ends of middle adapter component, solid with middle adapter component vertical welding
It is fixed.
In above-mentioned pressure self-balancing type expansion joint, pressure equalization module, comprising: shell adjusts component, is main spring, auxiliary
Help spring assembly I, secondary spring component II, guide draw bar I, guide draw bar II and limiting plate；
Adjust component, secondary spring component I and the setting of secondary spring component II inside housings；Wherein, component is adjusted to set
It sets at axis line position inside housings, secondary spring component I and secondary spring component II are symmetrical arranged；
One end of main spring is connect with component is adjusted, and the other end is limited by limiting plate；
Guide draw bar I and guide draw bar II are symmetrical arranged；Wherein, one end of guide draw bar I is vertical with limiting plate connect,
The connection of the bottom of the other end and shell；One end of guide draw bar II is vertical with limiting plate to be connect, the bottom of the other end and shell
Connection.
In above-mentioned pressure self-balancing type expansion joint, secondary spring component I, comprising: cam I, power transmission pull rod I and auxiliary bullet
Spring I；Secondary spring component II, comprising: cam II, power transmission pull rod II and secondary spring II；
Secondary spring I and secondary spring II are symmetricly set on the medial surface of shell；
Secondary spring I is connect by power transmission pull rod I with cam I；
Secondary spring II is connect by power transmission pull rod II with cam II；
Cam I and cam II are in contact with the lower surface for adjusting component respectively.
In above-mentioned pressure self-balancing type expansion joint, pressure equalization module, further includes: upper connection structure and lower connection machine
Structure；
Pressure equalization module is connected with stress pull rod I and stress pull rod II respectively by upper connection structure and lower bindiny mechanism
It connects.
The invention has the following advantages that
The invention discloses a kind of pressure self-balancing type expansion joints, and bellows production is balanced by peripheral hardware pressure equalization module
Raw pressure thrust reduces the outer dimension and length of bellows；For pressure equalization module not with media contact, stress can be with
According to practical adjustment, and do not influenced by high temperature and internal pipeline complex dielectrics.The power of peripheral hardware pressure equalization module and position
Moving direction can be arranged and be sized according to actual displacement direction, to achieve the purpose that balance bellows internal pressure thrust.Pressure
Balanced component uses constant force spring structure, adjustable internal load value and displacement and direction.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of pressure self-balancing type expansion joint in the embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of pressure equalization module in the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to disclosed by the invention
Embodiment is described in further detail.
The invention discloses a kind of pressure self-balancing type expansion joints, by vertical plate component, ratio link assembly and pressure balance
The components such as component composition, to absorb axial direction and lateral displacement, balances the pressure thrust of bellows, meanwhile, reduce bellows
Outer dimension and length.
Such as Fig. 1~2, in the present embodiment, the pressure self-balancing type expansion joint, comprising: vertical plate component I 1, vertical plate component II
2, expansion joint ontology 3, ratio link assembly 4, stress pull rod I 5, stress pull rod II 6 and pressure equalization module 7.
Such as Fig. 1, vertical plate component I 1 and vertical plate component II 2 are separately positioned on the left and right sides of expansion joint ontology 3；Ratio connecting rod
Component 4 is welded and fixed by vertical plate component I 1 and vertical plate component II 2；Vertical plate component I 1, stress pull rod I 5, pressure equalization module 7,
Stress pull rod II 6 and vertical plate component II 2 are sequentially connected.
In the preferred embodiment of the present invention, which can also include: bellows I 8, ripple
Pipe II 9 and middle adapter component 10.
Such as Fig. 1, bellows I 8 and bellows II 9 are connected by middle adapter component 10.Wherein, bellows I 8 is located at vertical plate
Between component I 1 and middle adapter component 10, bellows II 9 is between vertical plate component II 2 and middle adapter component 10.
In the preferred embodiment of the present invention, which can also include: pipe nipple I 11, end
Plate I 12, ring flat-plate I 13, pipe nipple II 14, end plate II 15 and ring flat-plate II 16.Wherein, it should be noted that expansion joint ontology 3 be by
Pipe nipple I 11, II 14 bellows I 8 of pipe nipple, bellows II 9 and middle adapter component 10 form.
Such as Fig. 1, pipe nipple I 11, end plate I 12 and ring flat-plate I 13 are symmetrically set with pipe nipple II 14, end plate II 15 and ring flat-plate II 16
It sets；Pipe nipple I 11 is welded and fixed by vertical plate component I 1, and end plate I 12 and ring flat-plate I 13 are respectively perpendicular and are weldingly fixed on pipe nipple I
On 11；One end of pipe nipple I 11 is connect with one end of bellows I 8；Pipe nipple II 14 is welded and fixed by vertical plate component II 2, is held
Plate II 15 and ring flat-plate II 16, which are respectively perpendicular, to be weldingly fixed on pipe nipple II 14；One end of pipe nipple II 14 and bellows II 9
One end connection.
In the preferred embodiment of the present invention, which can also include: universal ring assemblies 17.
Such as Fig. 1, universal ring assemblies 17 are arranged at the axis line position of expansion joint ontology, and universal ring assemblies 17 connect centre
The weight of middle adapter component 10 is passed through ratio link assembly 4, vertical plate component I 1 by adapter tube component 10 and ratio link assembly 4
It is transferred to pipe nipple I 11 and pipe nipple II 14 respectively with vertical plate component II 2, to eliminate the self weight of middle adapter component 10 to bellows
I 8 and bellows II 9 influence of crust deformation.
In the preferred embodiment of the present invention, which can also include: ring flat-plate III 18 and ring
Plate IV 19.
Such as Fig. 1, ring flat-plate III 18 and ring flat-plate IV 19 are symmetricly set on the both ends of middle adapter component 10, with middle adapter component
10 vertical weldings are fixed.
In the preferred embodiment of the present invention, pressure equalization module 7 can specifically include: shell 701 adjusts component
702, main spring 703, secondary spring component I 704, secondary spring component II 705, guide draw bar I 706, II 707 and of guide draw bar
Limiting plate 708.
Such as Fig. 2, adjusts component 702, secondary spring component I 704 and secondary spring component II 705 and be arranged in shell 701
Portion；Wherein, it adjusts component 702 to be arranged at 701 axis line inside position of shell, secondary spring component I 704 and secondary spring group
Part II 705 is symmetrical arranged；One end of main spring 703 is connect with component 702 is adjusted, and the other end is limited by limiting plate 708；It leads
It is symmetrical arranged to pull rod I 706 and guide draw bar II 707；Wherein, one end of guide draw bar I 706 is vertical with limiting plate 708 connects
It connects, the other end is connect with the bottom of shell 701；One end of guide draw bar II 707 is vertical with limiting plate 708 to be connect, the other end
It is connect with the bottom of shell 701.
Preferably, secondary spring component I 704, comprising: cam I 7041, power transmission pull rod I 7042 and secondary spring I 7043；
Secondary spring component II 705, comprising: cam II 7051, power transmission pull rod II 7052 and secondary spring II 7053.Wherein: auxiliary bullet
Spring I 7043 and secondary spring II 7053 are symmetricly set on the medial surface of shell 701；Secondary spring I 7043 passes through power transmission pull rod I
7042 connect with cam I 7041；Secondary spring II 7053 is connect by power transmission pull rod II 7052 with cam II 7051；Cam I
7041 and cam II 7051 respectively with adjust component 702 lower surface be in contact.
Preferably, pressure equalization module 7 can also include: upper connection structure 709 and lower bindiny mechanism 710.Wherein, pressure
Balanced component 7 is connect with stress pull rod I 5 and stress pull rod II 6 respectively by upper connection structure 709 and lower bindiny mechanism 710.
Preferably, the working principle of pressure equalization module 7 is as follows: according to the parallelogram law of power, in the work of cam
Under, the interaction of the composite force of the spring force of two secondary springs of spring force and left and right of main spring is realized, to be displaced
Constant output loads are obtained in the process.
Wherein, it should be noted that the pressure self-balancing type expansion joint can be according to actual displacement using one or more
Bigger axially and transversely displacement can be absorbed in bellows when using multiple bellowss.
By taking DN900 expansion joint as an example, according to traditional straight pipe pressure-balancing type expansion joint, maximum outer dimension is
1580mm, product length 1900mm, and pressure self-balancing type expansion joint described in the embodiment of the present invention is used, maximum shape ruler
Very little can reduce is 1280mm, and product length can be reduced to as 900mm.
Various embodiments are described in a progressive manner in this explanation, the highlights of each of the examples are with its
The difference of his embodiment, the same or similar parts between the embodiments can be referred to each other.
The above, optimal specific embodiment only of the invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
The content that description in the present invention is not described in detail belongs to the well-known technique of professional and technical personnel in the field.
Claims (8)
1. a kind of pressure self-balancing type expansion joint characterized by comprising vertical plate component I (1), vertical plate component II (2), expansion
Abridged edition body (3), ratio link assembly (4), stress pull rod I (5), stress pull rod II (6) and pressure equalization module (7)；
Vertical plate component I (1) and vertical plate component II (2) are separately positioned on the left and right sides of expansion joint ontology (3)；
Ratio link assembly (4) is welded and fixed by vertical plate component I (1) and vertical plate component II (2)；
Vertical plate component I (1), stress pull rod I (5), pressure equalization module (7), stress pull rod II (6) and vertical plate component II (2) according to
Secondary connection.
2. pressure self-balancing type expansion joint according to claim 1, which is characterized in that further include: bellows I (8), ripple
Pipe II (9) and middle adapter component (10)；
Bellows I (8) and bellows II (9) are connected by middle adapter component (10)；Wherein, bellows I (8) is located at vertical plate group
Between part I (1) and middle adapter component (10), bellows II (9) be located at vertical plate component II (2) and middle adapter component (10) it
Between.
3. pressure self-balancing type expansion joint according to claim 2, which is characterized in that further include: pipe nipple I (11), end
Plate I (12), ring flat-plate I (13), pipe nipple II (14), end plate II (15) and ring flat-plate II (16)；
Pipe nipple I (11), end plate I (12) and ring flat-plate I (13) and pipe nipple II (14), end plate II (15) and ring flat-plate II (16) are symmetrical
Setting；
Pipe nipple I (11) is welded and fixed by vertical plate component I (1), and end plate I (12) and ring flat-plate I (13) are respectively perpendicular and are welded and fixed
On pipe nipple I (11)；One end of pipe nipple I (11) is connect with one end of bellows I (8)；
Pipe nipple II (14) is welded and fixed by vertical plate component II (2), and end plate II (15) and ring flat-plate II (16) are respectively perpendicular welding
It is fixed on pipe nipple II (14)；One end of pipe nipple II (14) is connect with one end of bellows II (9).
4. pressure self-balancing type expansion joint according to claim 2, which is characterized in that further include: universal ring assemblies (17)；
Universal ring assemblies (17) are arranged at the axis line position of expansion joint ontology (3), in universal ring assemblies (17) connection indirectly
The weight of middle adapter component (10) is passed through ratio link assembly (4), vertical plate by tube assembly (10) and ratio link assembly (4)
Component I (1) and vertical plate component II (2) are transferred to pipe nipple I (11) and pipe nipple II (14) respectively, to eliminate middle adapter component
(10) influence of crust deformation being self-possessed to bellows I (8) and bellows II (9).
5. pressure self-balancing type expansion joint according to claim 4, which is characterized in that further include: ring flat-plate III (18) and ring
Plate IV (19)；
Ring flat-plate III (18) and ring flat-plate IV (19) are symmetricly set on the both ends of middle adapter component (10), with middle adapter component (10)
Vertical welding is fixed.
6. pressure self-balancing type expansion joint according to claim 1, which is characterized in that pressure equalization module (7), comprising:
Shell (701) adjusts component (702), main spring (703), secondary spring component I (704), secondary spring component II (705), leads
To pull rod I (706), guide draw bar II (707) and limiting plate (708)；
It is internal in shell (701) to adjust component (702), secondary spring component I (704) and secondary spring component II (705) setting；
Wherein, it adjusts component (702) to be arranged at shell (701) axis line inside position, secondary spring component I (704) and auxiliary bullet
Spring component II (705) is symmetrical arranged；
One end of main spring (703) is connect with component (702) are adjusted, and the other end is limited by limiting plate (708)；
Guide draw bar I (706) and guide draw bar II (707) are symmetrical arranged；Wherein, one end of guide draw bar I (706) and limit bottom
Seat (708) vertically connects, and the other end is connect with the bottom of shell (701)；One end of guide draw bar II (707) and limiting plate
(708) vertical connection, the other end are connect with the bottom of shell (701).
7. pressure self-balancing type expansion joint according to claim 6, which is characterized in that secondary spring component I (704), packet
It includes: cam I (7041), power transmission pull rod I (7042) and secondary spring I (7043)；Secondary spring component II (705), comprising: cam
II (7051), power transmission pull rod II (7052) and secondary spring II (7053)；
Secondary spring I (7043) and secondary spring II (7053) are symmetricly set on the medial surface of shell (701)；
Secondary spring I (7043) is connect by power transmission pull rod I (7042) with cam I (7041)；
Secondary spring II (7053) is connect by power transmission pull rod II (7052) with cam II (7051)；
Cam I (7041) and cam II (7051) are in contact with the lower surface for adjusting component (702) respectively.
8. pressure self-balancing type expansion joint according to claim 6, which is characterized in that pressure equalization module (7) also wraps
It includes: upper connection structure (709) and lower bindiny mechanism (710)；
Pressure equalization module (7) by upper connection structure (709) and lower bindiny mechanism (710) respectively with stress pull rod I (5) and by
Power pull rod II (6) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910080694.7A CN109681712A (en) | 2019-01-28 | 2019-01-28 | A kind of pressure self-balancing type expansion joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910080694.7A CN109681712A (en) | 2019-01-28 | 2019-01-28 | A kind of pressure self-balancing type expansion joint |
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| Publication Number | Publication Date |
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| CN109681712A true CN109681712A (en) | 2019-04-26 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910080694.7A Pending CN109681712A (en) | 2019-01-28 | 2019-01-28 | A kind of pressure self-balancing type expansion joint |
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| CN107940154A (en) * | 2017-10-25 | 2018-04-20 | 洛阳双瑞特种装备有限公司 | A kind of straight-pipe balance type expansion joint and balance method balanced by external applied load |
| CN108361464A (en) * | 2018-01-04 | 2018-08-03 | 洛阳双瑞特种装备有限公司 | A kind of pressure balanced expansion joint being slidingly sealed compensation technique based on end face |
| CN208138599U (en) * | 2018-03-20 | 2018-11-23 | 华中科技大学 | A kind of intelligence constant force damping frame |
| CN209705519U (en) * | 2019-01-28 | 2019-11-29 | 秦皇岛市泰德管业科技有限公司 | A kind of pressure self-balancing type expansion joint |
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