CN204879238U - Restricted type expansion joint of low stress load -carrying construction - Google Patents
Restricted type expansion joint of low stress load -carrying construction Download PDFInfo
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- CN204879238U CN204879238U CN201520388669.2U CN201520388669U CN204879238U CN 204879238 U CN204879238 U CN 204879238U CN 201520388669 U CN201520388669 U CN 201520388669U CN 204879238 U CN204879238 U CN 204879238U
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- pipe
- entrance point
- expansion joint
- end pipe
- outlet end
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Abstract
The utility model belongs to the technical field of the expansion joint, a restricted type expansion joint of low stress load -carrying construction is proposed. A restricted type expansion joint of low stress load -carrying construction who provides is including entrance point pipe (1), exit end pipe (12), bellows (5) and draw bar assembly (4), all overlap on entrance point pipe (1), exit end pipe (12) and put two rings board (9) by forming by the polylith arc, it puts unsteady ring (10) on entrance point pipe (1), exit end pipe (12) to be provided with to overlap respectively, the ring (10) that floats is hollow annular structure, floating, the lower part of encircling (10) is located entrance point pipe (1), the clearance between the two rings board is gone up in exit end pipe (12), entrance point pipe, exit end pipe come -up rotating ring are connected as an organic wholely by many draw bar assembly (8). The utility model discloses, reduce the thermal stress of expansion joint, strengthened bulk strength and rigidity, avoided the excessive fracture even that is out of shape of structure, improved the security and the reliability of expansion joint and pipeline.
Description
Technical field
The utility model belongs to expansion joint technical field, is specifically related to a kind of restricted type expansion joint of low stress load-carrying construction.
Background technique
Metal corrugated pipe expansion joint has the feature of bit shift compensation, vibration and noise reducing and sealing, is that be heated in modern times pipe network and equipment carries out one of critical component of thermal compensation.Compound pull rod type expansion joint shown in Fig. 1, Fig. 2 is usually applied to and compensates pipeline lateral displacement, and the pressure thrust that expansion joint produces is delivered on pull bar by expansion joint end pipe and the anistree plate that welds with it, thus realizes the effect retraining expansion joint pressure thrust; Therefore, by the end component strength that forms of pipe-anistree plate and the safe operation of rigidity to pipe-line system most important; If the strength deficiency of end pipe-anistree board component, there is surrender and even rupture, whole pipe-line system will be caused to destroy; If, there is excessive deformation, will support or the apparatus overload at expansion joint two ends be caused in the insufficient rigidity of end pipe-anistree board component.
In engineer applied, in the pull rod type expansion joint design of especially large at diameter and high pressure, high temperature, end pipe-anistree board component adopts anistree plate and stiffening rib plate structure, usually to improve the strength and stiffness of assembly; Because anistree plate directly welds with end pipe, anistree buttress portion is the position of maximum stress in bend and shearing stress superposition, also be the position that in expansion joint stress members, temperature stress is the highest, generation stress is concentrated, anistree plate root run is caused to be surrendered and cracking, cause end pipe local laceration to leak, lead to disastrous consequence.
Model utility content
For solving the problems of the technologies described above, the purpose of this utility model is the restricted type expansion joint proposing a kind of low stress load-carrying construction.
The utility model adopts following technological scheme for completing above-mentioned purpose:
A restricted type expansion joint for low stress load-carrying construction, described restricted type expansion joint includes entrance point pipe, outlet end pipe, bellows and rod assembly; The two ends of described bellows are connected with entrance point pipe, outlet end pipe respectively; Described entrance point pipe, outlet end Guan Shangjun are equipped with ring flat-plate; Described ring flat-plate is made up of the arc plate of polylith along entrance point pipe, outlet end pipe circumference uniform distribution; Described arc plate is welded on described entrance point pipe, outlet end pipe, and has the gap in order to release end pipe circumferential expansion and thermal stress between adjacent two pieces of arc plates; Ring flat-plate described on entrance point pipe, outlet end pipe is and is symmetrical arranged two; Between two described ring flat-plates, there is gap; Described restricted type expansion joint is also provided with floating ring; Described floating ring is two, and the floating ring described in two is nested with respectively on described entrance point pipe, outlet end pipe, and in gap on entrance point pipe, outlet end pipe between two described ring flat-plates, described floating ring is hollow-core construction; Gap between two described ring flat-plates is stretched out on entrance point pipe, outlet end pipe on the top of described floating ring; Described ring flat-plate is welded with the block in order to position floating ring; Described floating ring and outlet end pipe are connected as one by many rod assemblies between described floating ring entrance point pipe, form the floating type restraining structure of expansion joint pressure thrust, the low stress load-carrying construction of the ring flat-plate that described floating type restraining structure and polylith arc plate are formed.
The periphery of described floating ring has multiple outwardly directed trapezoid boss, and multiple described trapezoid boss is uniformly distributed along the circumference, and described trapezoid boss has the through hole passed in order to rod assembly.
The restricted type expansion joint of a kind of low stress load-carrying construction that the utility model proposes, the ring flat-plate welded with end pipe adopts splitted structure, the structure of binding bar adopts floating structure, by splitted structure and the floating ring structure of ring flat-plate, reduce the thermal stress of expansion joint, enhance bulk strength and rigidity, avoid structural member excessive deformation and even ftracture, thus improve the safety and reliability of expansion joint and pipeline.
Accompanying drawing explanation
Fig. 1, Fig. 2 are the structural representation of restricted type expansion joint in prior art.
Fig. 3, Fig. 4 are structural representation of the present utility model.
In figure: 1, entrance point pipe, 2, strengthen gusset, 3, anistree board component, 4, rod assembly, 5, bellows, 6, guide shell, 7, intervalve, 8, shipment assembly, 9, ring flat-plate, 10, floating ring, 11, block, 12, outlet end pipe.
Embodiment
With specific embodiment, the utility model is illustrated by reference to the accompanying drawings:
As shown in Figure 3, Figure 4, a kind of restricted type expansion joint of low stress load-carrying construction, described restricted type expansion joint includes entrance point pipe 1, outlet end pipe 12, bellows 5 and rod assembly 4; In this embodiment, the structure of rod assembly 4 adopts existing structure in prior art, does not do too much explanation at this; The two ends of described bellows 5 are connected with entrance point pipe 1, outlet end pipe 12 respectively; Described entrance point pipe 1, outlet end pipe 12 are all equipped with ring flat-plate 9; Described ring flat-plate 9 is made up of the arc plate of polylith along entrance point pipe, outlet end pipe circumference uniform distribution; Described arc plate is welded on described entrance point pipe 1, outlet end pipe 2, and has gap between adjacent two pieces of arc plates, in order to discharge entrance point pipe 1, the circumferential expansion of outlet end pipe and thermal stress; Ring flat-plate 9 described on entrance point pipe 1, outlet end pipe 12 is and is symmetrical arranged two; Between two described ring flat-plates 9, there is gap; Described restricted type expansion joint is also provided with floating ring 10; Described floating ring 10 is two, and the floating ring 10 described in two is nested with respectively on described entrance point pipe 1, outlet end pipe 12, and in gap on entrance point pipe 1, outlet end pipe 12 between two described ring flat-plates, described floating ring 10 is hollow-core construction; Gap between two described ring flat-plates is stretched out on entrance point pipe 1, outlet end pipe 12 on the top of described floating ring 10; Described ring flat-plate 9 is welded with the block 11 in order to position floating ring; The periphery of described floating ring 10 has four outwardly directed trapezoid boss, and the trapezoid boss described in four is uniformly distributed along the circumference, described trapezoid boss has the through hole passed in order to rod assembly; Described floating ring and outlet end pipe are connected as one by four rod assemblies 8 between described floating ring entrance point pipe, form the floating type restraining structure of expansion joint pressure thrust, the low stress load-carrying construction of the ring flat-plate that described floating type restraining structure and polylith arc plate are formed, makes expansion joint to the support be attached thereto or equipment power thrust with no pressure.
Claims (2)
1. a restricted type expansion joint for low stress load-carrying construction, described restricted type expansion joint includes entrance point pipe (1), outlet end pipe (12), bellows (5) and rod assembly (4); The two ends of described bellows (5) are connected with entrance point pipe (1), outlet end pipe (12) respectively; It is characterized in that: described entrance point pipe (1), outlet end pipe (12) are all equipped with ring flat-plate (9); Described ring flat-plate (9) is made up of the arc plate of polylith along entrance point pipe, outlet end pipe circumference uniform distribution; Described arc plate is welded on described entrance point pipe (1), outlet end pipe (2), and has the gap in order to release end pipe circumferential expansion and thermal stress between adjacent two pieces of arc plates; The upper described ring flat-plate (9) of entrance point pipe (1), outlet end pipe (12) is and is symmetrical arranged two; Between two described ring flat-plates (9), there is gap; Described restricted type expansion joint is also provided with floating ring (10); Described floating ring (10) is two, floating ring (10) described in two is nested with respectively on described entrance point pipe (1), outlet end pipe (12), and the gap be positioned between entrance point pipe (1), upper two the described ring flat-plates of outlet end pipe (12), described floating ring (10) is hollow annular construction; Gap between entrance point pipe (1), upper two the described ring flat-plates of outlet end pipe (12) is stretched out on the top of described floating ring (10); Described ring flat-plate (9) is welded with the block (11) in order to position floating ring; Described floating ring and outlet end pipe are connected as one by four rod assemblies (8) between described floating ring entrance point pipe, form the floating type restraining structure of expansion joint pressure thrust, the low stress load-carrying construction of the ring flat-plate that described floating type restraining structure and polylith arc plate are formed.
2. the restricted type expansion joint of a kind of low stress load-carrying construction according to claim 1, it is characterized in that: the periphery of described floating ring (10) has multiple outwardly directed trapezoid boss, and multiple described trapezoid boss is uniformly distributed along the circumference, and described trapezoid boss has the through hole passed in order to rod assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520388669.2U CN204879238U (en) | 2015-06-09 | 2015-06-09 | Restricted type expansion joint of low stress load -carrying construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520388669.2U CN204879238U (en) | 2015-06-09 | 2015-06-09 | Restricted type expansion joint of low stress load -carrying construction |
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| Publication Number | Publication Date |
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| CN204879238U true CN204879238U (en) | 2015-12-16 |
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| CN201520388669.2U Active CN204879238U (en) | 2015-06-09 | 2015-06-09 | Restricted type expansion joint of low stress load -carrying construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588275A (en) * | 2017-09-30 | 2018-01-16 | 洛阳双瑞特种装备有限公司 | A kind of horizontal self-supporting bend pipe pressure balance type expansion joint |
| CN112555554A (en) * | 2020-12-11 | 2021-03-26 | 洛阳双瑞特种装备有限公司 | Self-bearing expansion joint for pipe orifice of harsh stress equipment |
-
2015
- 2015-06-09 CN CN201520388669.2U patent/CN204879238U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588275A (en) * | 2017-09-30 | 2018-01-16 | 洛阳双瑞特种装备有限公司 | A kind of horizontal self-supporting bend pipe pressure balance type expansion joint |
| CN107588275B (en) * | 2017-09-30 | 2020-06-09 | 洛阳双瑞特种装备有限公司 | Pressure balance type expansion joint of transverse self-bearing elbow |
| CN112555554A (en) * | 2020-12-11 | 2021-03-26 | 洛阳双瑞特种装备有限公司 | Self-bearing expansion joint for pipe orifice of harsh stress equipment |
| CN112555554B (en) * | 2020-12-11 | 2024-04-19 | 中船双瑞(洛阳)特种装备股份有限公司 | Self-bearing expansion joint for pipe orifice of severe stress equipment |
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| CP01 | Change in the name or title of a patent holder |
Address after: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |