CN217482291U

CN217482291U - Composite hinge type expansion joint combination device

Info

Publication number: CN217482291U
Application number: CN202221567729.3U
Authority: CN
Inventors: 付贝贝; 陈杰; 杨玉强; 李�杰; 李世乾; 高翔; 闫廷来
Original assignee: CSSC Shuangrui Luoyang Special Equipment Co Ltd
Current assignee: CSSC Shuangrui Luoyang Special Equipment Co Ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-09-23
Anticipated expiration: 2032-06-22

Abstract

The utility model provides a composite set of double entry hinge type expansion joint, including first bellows and second bellows first bellows with set up the intervalve between the second bellows set up at least one end hinge joint on the first bellows set up at least one end hinge joint on the second bellows, two set up intermediate strut subassembly between the end hinge joint, two are stretched out at the both ends of intermediate strut subassembly the end hinge joint is connected with first loose cargo ring subassembly, second loose cargo ring subassembly respectively, first loose cargo ring subassembly first bellows intermediate strut subassembly the intervalve the second bellows the loose cargo ring subassembly is preassembled as an organic wholely. Composite hinge type expansion joint's composite set, overcome the problem of pipeline installation precision, reduced expansion joint weight and economic cost again, improved the fail safe nature of expansion joint and pipeline simultaneously.

Description

Composite hinge type expansion joint combination device

Technical Field

The utility model relates to a bellows expansion joint technical field, in particular to composite set of double entry hinge type expansion joint that can absorb horizontal and angular displacement.

Background

The expansion joint is used as an important part for ensuring the stable operation of a pressure pipeline and equipment, has the functions of displacement compensation, vibration reduction, noise reduction and sealing, is widely applied to the industrial fields of heat supply networks, oil refining, petrochemical industry, electric power (thermal power, hydroelectric power and nuclear power), ships, buildings, cement, space navigation and the like at present, but due to the structural characteristics of the single expansion joint, a group of (two) single hinge expansion joints can be simultaneously used on a pipeline between two spring hangers to meet the requirement of pipeline thermal compensation.

Fig. 1 is a schematic view of a pipeline in which a set (two) of unitary hinge expansion joints 3A/B is installed between two spring hangers 2a, wherein the set of unitary hinge expansion joints 3A/B includes two unitary hinge expansion joints 1a, a middle pipe is connected between the two unitary hinge expansion joints 1a, and the set (two) of unitary hinge expansion joints is disposed between the two spring hangers 2a to compensate for thermal displacement of the pipeline 4a caused by temperature change.

The combination of one group (two) of single hinge type expansion joints can absorb transverse displacement and angular displacement, but the installation precision of the two expansion joints needs to be controlled simultaneously, the installation precision is lower, the installation efficiency is low, the manufacturing cost is high, the other group (two) of single hinge type expansion joints is provided with four floating ring joints, and the whole weight of the pipeline is large.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a composite set of double entry hinge type expansion joint to solve the technical problem that the expansion joint is all lower with high costs, heavy in weight, efficiency of construction and installation effectiveness among the high temperature major diameter pipeline among the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a composite hinge type expansion joint comprises a first corrugated pipe and a second corrugated pipe, wherein a middle pipe is arranged between the first corrugated pipe and the second corrugated pipe, at least one end hinge plate is arranged on the first corrugated pipe, at least one end hinge plate is arranged on the second corrugated pipe, an intermediate support assembly is arranged between the two end hinge plates, two end hinge plates extending out of two ends of the intermediate support assembly are respectively connected with a first floating ring assembly and a second floating ring assembly, and the first floating ring assembly, the first corrugated pipe, the intermediate support assembly, the middle pipe, the second corrugated pipe and the second floating ring assembly are preassembled into a whole.

Furthermore, a first end pipe is arranged at one end, far away from the middle pipe, of the first corrugated pipe, the first floating ring assembly is fixed on the first end pipe, and correspondingly, a second end pipe is arranged at one end, far away from the middle pipe, of the second corrugated pipe, and the second floating ring assembly is fixed on the second end pipe.

Furthermore, a second guide cylinder is arranged at the joint of the first end pipe and the first corrugated pipe, and a first guide cylinder is arranged at the joint of the first corrugated pipe and the middle pipe.

Furthermore, another second guide cylinder is arranged at the joint of the second end pipe and the second corrugated pipe, and another first guide cylinder is arranged at the joint of the second corrugated pipe and the middle pipe.

Further, a heat insulation layer assembly is arranged at the joint of the first corrugated pipe, the middle pipe and the first end pipe.

Further, the heat insulation layer assembly is arranged between the first guide cylinder, the second guide cylinder and the inner wall of the first corrugated pipe.

Further, a protective cover assembly is arranged on the first corrugated pipe, one end of the protective cover assembly is fixed on the first end pipe, and the other end of the protective cover assembly is fixed on the middle pipe; and another protective cover component is arranged on the second corrugated pipe, one end of the protective cover component is fixed on the second end pipe, and the other end of the protective cover component is fixed on the middle pipe.

Further, a first shipping piece is arranged between the first end pipe and the middle pipe, the first shipping piece is used for mounting the first end pipe, the first corrugated pipe and the middle pipe in a pre-shifting mode, a second shipping piece is arranged between the second end pipe and the middle pipe, and the second shipping piece is used for mounting the second end pipe, the second corrugated pipe and the middle pipe in a pre-shifting mode.

Further, the first shipping member comprises a shipping bridge, at least one shipping support member is respectively arranged at two ends of the shipping bridge, one of the shipping support members is fixedly connected with the first end pipe, and the other shipping support member is fixedly connected with the middle pipe.

Compared with the prior art, the composite set of compound hinge type expansion joint has the following advantages:

(1) the combined device of the compound hinge type expansion joint adopts a compound hinge type expansion joint structure for absorbing compound displacement, reduces two floating rings and lightens the weight; meanwhile, the pre-assembled structure is suitable, factory assembly can be realized, pre-displacement installation is carried out in advance, the construction installation efficiency and the installation precision can be improved, the pipeline can be ensured to be positioned on the same axis when running, the resistance loss of the pipeline is reduced, and the safety and the reliability of the pipeline running are improved.

(2) Composite hinge type expansion joint's composite set, overcome the problem of pipeline installation precision, reduced expansion joint weight and economic cost again, improved the fail safe nature of expansion joint and pipeline simultaneously.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic representation of a prior art pipeline with a single set of hinged expansion joints;

fig. 2 is a schematic structural view of the combined device of the compound hinge type expansion joint according to the embodiment of the present invention before the pre-positioning of the integrated skid-mounted device;

fig. 3 is a schematic structural view of the combined device of the compound hinge type expansion joint according to the embodiment of the present invention after the integrated skid-mounting and pre-positioning;

description of the reference numerals:

1a, a single hinge expansion joint; 2a, a spring hanger; 3A/B, group single type hinge expansion joint; 4a, a pipeline; 1. a first floating ring assembly; 2. an end hinge plate; 3. a first bellows; 4. an insulating layer assembly; 5. a first draft tube; 6. a protective cover assembly; 7. a second draft tube; 8. an intermediate support assembly; 9. an intermediate pipe; 10. a second bellows; 11. a second floating ring assembly; 12. shipping a gap bridge; 13. a shipping support; 14. a first end tube; 15. a second end tube; 16. a first shipment; 17. a second shipment.

Detailed Description

In order to make the technical means, the purpose and the functions of the present invention easy to understand, embodiments of the present invention will be described in detail with reference to the specific drawings.

It should be noted that all terms used in the present invention for directional and positional indication, such as: the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "lower", "transverse", "longitudinal", "center", etc. are used only for explaining the relative positional relationship, connection conditions, etc. between the respective members in a certain specific state (as shown in the drawings), and are only for convenience of description of the present invention, and do not require that the present invention must be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 2-3, the utility model discloses a composite hinge type expansion joint's composite set, including first bellows 3 and second bellows 10 first bellows 3 with set up intermediate pipe 9 between the second bellows 10 set up at least one end hinge joint 2 on the first bellows 3 set up at least one end hinge joint 2 on the second bellows 10, two set up intermediate strut subassembly 8 between the end hinge joint 2, two are stretched out at intermediate strut subassembly 8's both ends end hinge joint 2 is connected with first loose assembly 1, second loose assembly 11 respectively, first loose assembly 1 first bellows 3 intermediate strut subassembly 8 intermediate pipe 9 the second bellows 10 the second loose assembly 11 is pre-assembled as an organic whole.

The application discloses composite set of double entry hinge type expansion joint through the end hinge joint board subassembly that sets up, unsteady ring subassembly, two bellows, middle supporting component and middle tubular construction, can guarantee that the expansion joint can absorb lateral displacement, also can compensate angular displacement, adopts composite set of double entry hinge type expansion joint simultaneously, can alleviate the whole weight of expansion joint, simultaneously, through the pre-assembled structure that sets up, make composite set of double entry hinge type expansion joint, can adopt the batch production prefabrication, through the equipment of mill, advance the installation that shifts in advance, can enough improve construction installation effectiveness and installation accuracy, when can guaranteeing high temperature major diameter pipeline operation simultaneously, the pipeline is in same axis, reduces the pipeline resistance loss, improves pipeline operation fail safe nature.

The composite device of the compound hinge type expansion joint can ensure the composite displacement of the expansion joint compensation pipeline, overcome the problem of pipeline installation precision, reduce the weight and the economic cost of the expansion joint, and improve the safety and the reliability of the expansion joint and the pipeline simultaneously.

As a preferred example of the present invention, a first end pipe 14 is disposed at an end of the first bellows 3 away from the middle pipe 9, the first floating ring assembly 1 is fixed on the first end pipe 14, and correspondingly, a second end pipe 15 is disposed at an end of the second bellows 10 away from the middle pipe 9, and the second floating ring assembly 11 is fixed on the second end pipe 15.

This arrangement further facilitates the reliability of the composite hinge-type expansion joint in advance of pre-displacement mounting during factory assembly.

As a preferred example of the present invention, a second guide cylinder 7 is provided at a joint of the first end pipe 14 and the first bellows 3, and a first guide cylinder 5 is provided at a joint of the first bellows 3 and the intermediate pipe 9. The structure of the guide shell can be any guide shell structure arranged at the joint of the expansion joint corrugated pipe in the prior art, and detailed description is omitted here. Correspondingly, as a preferred example of the present invention, the second bellows 10 is provided with the first draft tube 5 and the second draft tube 7 at the joint of the middle tube 9 and the second end tube 15, so as to ensure that the combined device of the preassembled compound hinge type expansion joint can compensate naturally when being heated, avoid the instability of the bellows, and ensure the sealing performance of the joint.

As a preferred example of the present invention, a heat insulating layer assembly 4 is provided at a junction between the first corrugated tube 3 and the intermediate tube 9 and the first end tube 14. This setting is guaranteed the security and the reliability that composite set of double entry hinge type expansion joint used in high temperature major diameter pipeline, avoid the disaster risk that the high temperature medium outwards transmitted heat and brought through the expansion joint. As an example of the present invention, the heat insulation layer assembly 4 is disposed between the first guide cylinder 5, the second guide cylinder 7 and the inner wall of the first corrugated pipe 3.

Preferably, a boot assembly 6 is provided on the first bellows 3, and one end of the boot assembly 6 is fixed to the first end pipe 14 and the other end is fixed to the intermediate pipe 9.

This arrangement further ensures the stability and reliability of the assembly connection of the first end pipe 14, the first corrugated pipe 3, and the intermediate pipe 9. Similarly, the second bellows 10 is also provided with the thermal insulation layer assembly 4 and the protection cover assembly 6 at the joint between the second bellows 10 and the middle pipe 9 and the second end pipe 15, and the assembling mode and the fixing structure of the second bellows are similar to those of the first bellows 3 at the joint between the middle pipe 9 and the first end pipe 14, and detailed description is omitted here.

As a preferred example of the present invention, a first shipping member 16 is provided between the first end pipe 14 and the intermediate pipe 9, the first shipping member being used to perform pre-displacement mounting of the first end pipe 14, the first corrugated pipe 3, and the intermediate pipe 9, a second shipping member 17 is provided between the second end pipe 15 and the intermediate pipe 9, and the second shipping member 17 being used to perform pre-displacement mounting of the second end pipe 15, the second corrugated pipe 10, and the intermediate pipe 9.

Specifically, the first shipping member 16 includes a shipping bridge 12, at least one shipping support member 13 is disposed at each end of the shipping bridge 12, one of the shipping support members 13 is fixedly connected to the first end pipe 14, and the other shipping support member 13 is fixedly connected to the intermediate pipe 9. As an example of the present invention, the structure of the second shipment part 17 is similar to that of the first shipment part 16, and detailed description thereof is omitted.

As shown in fig. 2 to 3, fig. 2 is a structural schematic diagram of the combined device of the compound hinge type expansion joint before the overall integration and the skid-mounting pre-positioning, and fig. 3 is a structural schematic diagram of the combined device of the compound hinge type expansion joint after the overall integration and the skid-mounting pre-positioning, the working medium is all on the inner side of the corrugated pipe, and the outer sides of the first corrugated pipe 3 and the second corrugated pipe 10 which are used as the working corrugated pipes are both communicated with the atmosphere.

Compound hinge expansion joint, through adopting the equipment of mill, can advance the position of shifting in advance, when the operation, expansion joint operating condition is horizontal and the compound displacement of angle, two expansion joints produce horizontal dislocation, first bellows 3, second bellows 10 receive separately the restraint of hinge subassembly (end hinge board 2, middle support component 8) produce pure angular displacement, two sets of work bellows (first bellows 3, second bellows 10) are the bending and stretching state this moment, the compensation of the horizontal and compound displacement of angle of pipeline has been realized, L in figure 3 ₁ To pre-shift the rear axis, L ₂ The original axis of the compound hinge expansion joint is indicated, and the pipeline is ensured to be in the same axis when the pipeline runs by pre-displacement assembly and fixation of the shipping support piece, so that the resistance loss of the pipeline is reduced, and the safety and reliability of the pipeline running are improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The combined device of the compound hinge type expansion joint is characterized by comprising a first corrugated pipe (3) and a second corrugated pipe (10), wherein a middle pipe (9) is arranged between the first corrugated pipe (3) and the second corrugated pipe (10), at least one end hinge plate (2) is arranged on the first corrugated pipe (3), at least one end hinge plate (2) is arranged on the second corrugated pipe (10), a middle support component (8) is arranged between the two end hinge plates (2), two ends of the middle support component (8) extend out of the two end hinge plates (2) and are respectively connected with a first floating ring component (1) and a second floating ring component (11), and the first floating ring component (1), the first corrugated pipe (3), the middle support component (8), the middle pipe (9) and the second corrugated pipe (10), The second floating ring assembly (11) is preassembled as a whole.

2. A compound hinge-type expansion joint combination according to claim 1, characterized in that a first end pipe (14) is provided at the end of the first bellows (3) remote from the intermediate pipe (9), the first floating ring assembly (1) being fixed to the first end pipe (14), and correspondingly a second end pipe (15) is provided at the end of the second bellows (10) remote from the intermediate pipe (9), the second floating ring assembly (11) being fixed to the second end pipe (15).

3. A compound hinge type expansion joint assembly according to claim 2, wherein a second guide shell (7) is provided at the junction of the first end pipe (14) and the first bellows (3), and a first guide shell (5) is provided at the junction of the first bellows (3) and the intermediate pipe (9).

4. A compound hinge type expansion joint assembly according to claim 3, wherein another second guide shell (7) is provided at the junction of the second end pipe (15) and the second bellows (10), and another first guide shell (5) is provided at the junction of the second bellows (10) and the intermediate pipe (9).

5. A combined unit of a multiple hinge-type expansion joint according to any one of claims 1 to 4, wherein an insulation layer assembly (4) is provided at the junction of the first corrugated pipe (3) and the intermediate pipe (9) and the first end pipe (14).

6. The compound hinge-type expansion joint assembly according to claim 5, wherein the thermal insulation layer assembly (4) is disposed between the first guide shell (5), the second guide shell (7) and the inner wall of the first bellows (3).

7. The compound hinge-type expansion joint assembly according to claim 6, wherein a boot assembly (6) is provided on the first bellows (3), and one end of the boot assembly (6) is fixed to the first end pipe (14) and the other end is fixed to the intermediate pipe (9); and another protective cover component (6) is arranged on the second corrugated pipe (10), one end of the protective cover component (6) is fixed on the second end pipe (15), and the other end of the protective cover component (6) is fixed on the middle pipe (9).

8. A combined set of multiple-hinge expansion joints according to claim 2 or 7, characterised in that a first shipping piece (16) is arranged between the first end pipe (14) and the intermediate pipe (9) for pre-indexed mounting of the first end pipe (14), first bellows (3) and the intermediate pipe (9), and a second shipping piece (17) is arranged between the second end pipe (15) and the intermediate pipe (9), the second shipping piece (17) being arranged for pre-indexed mounting of the second end pipe (15), second bellows (10) and the intermediate pipe (9).

9. A compound hinge-type expansion joint assembly according to claim 8, wherein said first shipping member (16) comprises a shipping bridge (12) and at least one shipping support member (13) is provided at each end of said shipping bridge (12), one of said shipping support members (13) being fixedly connected to said first end pipe (14) and the other of said shipping support members (13) being fixedly connected to said intermediate pipe (9).