Device for quickly correcting out-of-roundness of pipe orifice of large-diameter pipeline

Abstract

The invention relates to the technical field of pipeline welding, in particular to a rapid correcting device for the out-of-roundness of a large-diameter pipeline orifice, and aims to solve the problems that when existing equipment is used for correcting the out-of-roundness of a pipeline, the pipeline is easily damaged, and the efficiency is low. The device comprises an inner supporting assembly and an outer supporting assembly. The inner supporting assembly is clamped in the pipeline; the outer supporting assembly is sleeved outside the pipeline; a first groove is formed in the side, close to the pipeline, of the inner supporting assembly. A first jacking component is arranged in the first groove and can apply pressure to the inner wall of the pipeline; a second groove is formed in the side, close to the pipeline, of the outer supporting assembly. A second jacking component is arranged in the second groove and can apply pressure to the outer wall of the pipeline. During correction, the inner supporting assembly and the outer supporting assembly can mutually support the pipeline, so that correction force can be more intensively and accurately applied to the position needing to be adjusted, the pipeline is prevented from being damaged, and the correction efficiency and precision are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline welding, in particular to a large-diameter pipeline pipe mouth out-of-roundness quick correction device. BACKGROUND

[0003] High-pressure gas pipeline refers to a land natural gas pipeline with a running pressure of 10-15 MPa. According to the research results of experts, when the annual throughput is more than 1 billion cubic meters, high-pressure gas transmission can save transportation costs. When the transportation distance is 5000 km and the annual throughput is between 1.5 billion and 3 billion cubic meters, high-pressure gas transmission can save transportation costs by 20%-35% compared with the traditional transportation mode. High-pressure gas transmission can reduce the pipe diameter, and through the development and application of high-grade pipe materials, the wall thickness of steel pipes can be reduced, thereby reducing the weight of steel pipes and welding time, and thus reducing the construction cost. For example, the use of X100 pipe material can save about 30% of the cost and 10%-12% of the pipeline construction cost compared with the use of X65 and X70. The construction of submarine pipelines has also developed towards large diameter.

[0004] With the improvement of the construction efficiency of marine pipelines and land pipelines and the popularization of full-automatic welding, the requirement for pipe mouth out-of-roundness is more stringent. Large-diameter pipelines are difficult to process in terms of out-of-roundness, and the error required by the specification cannot fully meet the demand of the full-automatic welding for the mouth efficiency. In addition, accidental pipe mouth bumping and deformation may occur during the movement of the pipeline, and more pipe end out-of-roundness exceeding the standard may occur in large-diameter pipeline projects. Therefore, quick correction of the pipe mouth that does not meet the out-of-roundness requirement is needed on site to avoid affecting the overall construction efficiency or a series of influences and losses caused by re-pipe manufacturing.

[0005] At present, local pressurization is often used to correct the pipe mouth of large-diameter pipelines inside or outside, but this method is easy to damage the pipe counterweight layer and cause damage. The diameter expansion and reduction equipment is not suitable for on-site correction due to its large size, complex equipment, poor flexibility and low efficiency. SUMMARY

[0006] The present application provides a large-diameter pipeline pipe mouth out-of-roundness quick correction device to alleviate the problem of easy damage to the pipeline and low efficiency when the existing equipment corrects the out-of-roundness of the pipeline.

[0007] In order to alleviate the above technical problems, the technical scheme provided by the present application is as follows:

[0008] The present application provides a large-diameter pipeline pipe mouth out-of-roundness quick correction device including an inner support assembly and an outer support assembly.

[0009] The inner support assembly is clamped in the pipeline;

[0010] The outer support assembly is sleeved on the outside of the pipeline;

[0011] The inner support assembly is provided with a first groove on the side close to the pipeline;

[0012] The first groove is provided with a first jacking component, which can apply pressure to the inner wall of the pipeline;

[0013] The outer support assembly is provided with a second groove on the side close to the pipeline;

[0014] The second groove is provided with a second jacking component, which can apply pressure to the outer wall of the pipeline.

[0015] Further,

[0016] When repairing the inner wall unevenness of the pipeline, the second jacking component is removed, and the first jacking component works independently.

[0017] Further,

[0018] When repairing the outer wall unevenness of the pipeline, the first jacking component is removed, and the second jacking component works independently.

[0019] Further,

[0020] When repairing the inner wall and outer wall unevenness of the pipeline at the same time, the first jacking component and the second jacking component work together.

[0021] Further,

[0022] The inner support assembly comprises a stand, a first connecting plate, a second connecting plate, a mounting plate and a support plate;

[0023] The first connecting plate and the second connecting plate are respectively arranged on both sides of the mounting plate;

[0024] The mounting plate is arranged on the upper part of the stand;

[0025] The support plate is arranged on the lower part of the stand;

[0026] The side of the support plate away from the stand is slidably connected with the inner wall of the pipeline;

[0027] The ends of the first connecting plate and the second connecting plate away from the stand are respectively slidably connected with the inner wall of the pipeline.

[0028] Further,

[0029] The end of the first connecting plate, the second connecting plate and the support plate at the joint with the inner wall of the pipeline is an arc surface matched with the inner wall of the pipeline.

[0030] Further,

[0031] The inner wall of the outer support assembly is an arc surface matched with the outer wall of the pipeline.

[0032] Further,

[0033] The inner support assembly and the outer support assembly are made of high-hardness metal material.

[0034] Further,

[0035] The inner support assembly, the outer support assembly and the position where the pipeline is in contact are provided with elastic soft pads.

[0036] The beneficial effects of the present application are as follows:

[0037] Through the combination of the inner and outer support assemblies, the device can simultaneously and accurately position and correct the non-circularity from the inner and outer sides of the pipeline. The inner support assembly and the outer support assembly can support the pipeline, so that the correction force can be more concentrated and accurately applied to the position that needs to be adjusted, avoiding damage to the pipeline and effectively improving the correction efficiency and accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the specific embodiments or related art, the drawings needed to be used in the specific embodiments or related art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0039] Fig. 1 It is a schematic diagram for the device to correct the non-circularity of the outer wall of the pipeline.

[0040] Fig. 2 It is a schematic diagram for the device to correct the non-circularity of the inner wall of the pipeline.

[0041] Fig. 3 It is a structural schematic diagram of the inner support assembly.

[0042] Fig. 4 It is a structural schematic diagram of the outer support assembly.

[0043] Icon:

[0044] 100-inner support assembly; 110-first groove; 120-first jacking part; 130-stand; 140-first connecting plate; 150-second connecting plate; 160-mounting plate; 170-supporting plate;

[0045] 200-outer support assembly; 210-second groove; 220-second jacking part;

[0046] 300-pipeline. DETAILED DESCRIPTION

[0047] The prior art often adopts the way of local pressurization to correct the pipe mouth of the large-diameter pipeline inside or outside when correcting the pipe non-circularity at the construction site, but such a way is easy to damage the pipe counterweight layer and cause damage; and the diameter expansion and reduction equipment is not suitable for the correction at the construction site due to the large size, complex equipment, poor flexibility and low efficiency.

[0048] Therefore, as shown in the present scheme, a large-diameter pipeline pipe mouth non-circularity quick correction device is provided, which comprises an inner support assembly 100 and an outer support assembly 200. Figs. 1 to 4

[0049] The inner support assembly 100 is clamped inside the pipeline 300.

[0050] The outer support assembly 200 is sleeved outside the pipeline 300.

[0051] The inner support assembly 100 is provided with a first recess 110 close to one side of the pipeline 300.

[0052] The first recess 110 is provided with a first jacking part 120, and the first jacking part 120 can apply pressure to the inner wall of the pipeline 300.

[0053] The outer support assembly 200 is provided with a second recess 210 close to one side of the pipeline 300.

[0054] The second recess 210 is provided with a second jacking part 220, and the second jacking part 220 can apply pressure to the outer wall of the pipeline 300.

[0055] When the pipeline 300 non-circularity is corrected by using the device, the inner support assembly 100 and the outer support assembly 200 are respectively installed at the pipe mouth of the pipeline 300, and then the first jacking part 120 or the second jacking part 220 is used to apply pressure to the position where the pipe non-circularity needs to be adjusted after the inner support assembly 100 and the outer support assembly 200 support the two sides of the position, so as to correct the non-circularity and protect the deformation of the position where the non-circularity is adjusted by the inner support assembly 100 and the outer support assembly 200, thereby avoiding excessive correction damage to the pipeline 300 caused by excessive pressure.

[0056] In the present scheme, the first jacking part 120 and the second jacking part 220 can be hydraulic jacks or other pressurizing equipment, and are installed by a detachable connection mode.

[0057] When the inner wall non-circularity of the pipeline 300 is repaired, the second jacking part 220 is removed, and the first jacking part 120 works independently;

[0058] When the outer wall non-circularity of the pipeline 300 is repaired, the first jacking part 120 is removed, and the second jacking part 220 works independently.

[0059] ​When the inner wall and the outer wall of the pipeline 300 are simultaneously repaired for the non-circularity, the first lifting component 120 and the second lifting component 220 work together;

[0060] The inner support assembly 100 comprises a column 130, a first connecting plate 140, a second connecting plate 150, a mounting plate 160 and a support plate 170;

[0061] The first connecting plate 140 and the second connecting plate 150 are respectively arranged on both sides of the mounting plate 160;

[0062] The mounting plate 160 is arranged on the upper part of the column 130;

[0063] The support plate 170 is arranged on the lower part of the column 130;

[0064] The side of the support plate 170 away from the column 130 is in sliding connection with the inner wall of the pipeline 300;

[0065] The ends of the first connecting plate 140 and the second connecting plate 150 away from the column 130 are respectively in sliding connection with the inner wall of the pipeline 300.

[0066] Specifically, the inner support assembly 100 is arranged in the pipeline 300 in the shape of Y as a whole, and the column 130, the first connecting plate 140, the second connecting plate 150, the mounting plate 160 and the support plate 170 are connected together by welding.

[0067] It should be noted that the mounting mode in the figure is a schematic diagram, and in actual application, the relative positions of the inner support assembly 100 and the outer support assembly 200 can be adjusted, for example, when the inner wall of the pipeline 300 is repaired for the non-circularity, the outer support assembly 200 can be rotated by a certain angle to make the second groove 210 away from the position to be repaired for the non-circularity; when the outer wall of the pipeline 300 is repaired for the non-circularity, the inner support assembly 100 can be rotated by a certain angle to make the support plate 170 adhere to the inner wall of the position to be repaired for the non-circularity, so when the inner wall and the outer wall of the pipeline 300 have multiple positions to be repaired, the first lifting component 120 and the second lifting component 220 can work simultaneously to improve the working efficiency.

[0068] More preferably, one end of the first connecting plate 140, the second connecting plate 150 and the support plate 170 at the position where they are in contact with the inner wall of the pipeline 300 is an arc surface matched with the inner wall of the pipeline 300, and the inner wall of the outer support assembly 200 is an arc surface matched with the outer wall of the pipeline 300, so that the first lifting component 120 and the second lifting component 220 can avoid damaging the non-circularity of other positions of the pipeline 300 when pressing.

[0069] Since the pipeline 300 is supported by special steel materials with high pressure resistance, it has high tensile and compressive properties, therefore the inner support assembly 100 and the outer support assembly 200 are made of high-hardness metal materials to avoid damage during processing and thus personal safety problems.

[0070] More preferably, in order to avoid secondary damage to the pipeline 300 during correction, the positions where the inner support assembly 100 and the outer support assembly 200 contact the pipeline 300 are provided with elastic soft pads to protect the positions where the pipeline 300 contacts the inner support assembly 100 and the outer support assembly 200 from appearing damage such as pressure injury.

[0071] The present scheme has at least the following beneficial effects:

[0072] 1. Improve correction efficiency and accuracy: By using the inner and outer support assemblies, the device can simultaneously position and correct the out-of-roundness from both the inner and outer sides of the pipeline 300. The design of the inner support assembly 100 and the outer support assembly 200 allows the correction force to be more concentrated and accurately applied to the position that needs adjustment, thereby effectively improving the efficiency and accuracy of correction.

[0073] 2. Avoid damaging the pipeline: The design of the inner and outer support assemblies adopts an arc surface matching the pipeline wall and is provided with elastic soft pads, which can greatly reduce secondary damage to the pipeline during correction, especially protecting the counterweight layer of the pipeline from being damaged. This is very critical for maintaining the integrity and function of the pipeline.

[0074] 3. Strong adaptability and high flexibility: The relative positions of the inner and outer support assemblies can be adjusted arbitrarily, providing high flexibility so that the device can adapt to different working environments and specific requirements. In addition, the inner and outer assemblies can be used independently or jointly to adapt to different correction needs of the inner and outer wall out-of-roundness.

[0075] 4. Reduce cost and improve on-site adaptability: Compared with traditional expanding or reducing equipment, the correction device is more suitable for use on the construction site due to its smaller size and simplified structure. This design not only saves transportation and operation costs, but also reduces interference with other operations on site.

[0076] 5. Enhanced safety: Since each component is made of high-pressure and high-hardness metal materials, and elastic soft pads are added to the key contact surfaces, this increases the safety of the entire operation and reduces the risk of personal safety during construction.

[0077] 6. Wide application potential: The device is particularly suitable for large-diameter marine pipelines and other important facilities, and can complete on-site rapid correction without returning to the factory, which is crucial for maintaining the stability of energy and resource transportation.

[0078] In summary, the scheme provides a reasonable structure, simple operation and can effectively avoid the secondary damage of the pipeline correction device, not only improves the correction efficiency and safety, but also reduces the operation cost, has good market application prospect and practical value.

[0079] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A large-diameter pipeline pipe mouth out-of-roundness quick correction device, characterized in that: it comprises an inner support assembly (100) and an outer support assembly (200); the inner support assembly (100) is clamped inside the pipeline (300); the outer support assembly (200) is sleeved outside the pipeline (300); the inner support assembly (100) is provided with a first groove (110) near one side of the pipeline (300); the first groove (110) is provided with a first jacking component (120), which can apply pressure to the inner wall of the pipeline (300); the outer support assembly (200) is provided with a second groove (210) near one side of the pipeline (300); the second groove (210) is provided with a second jacking component (220), which can apply pressure to the outer wall of the pipeline (300).

2. The large-diameter pipeline pipe mouth out-of-roundness quick correction device according to claim 1, characterized in that: when repairing the inner wall out-of-roundness of the pipeline (300), the second jacking component (220) is removed, and the first jacking component (120) works independently.

3. The large-diameter pipeline pipe mouth out-of-roundness quick correction device according to claim 1, characterized in that: when repairing the outer wall out-of-roundness of the pipeline (300), the first jacking component (120) is removed, and the second jacking component (220) works independently.

4. The large-diameter pipeline pipe mouth out-of-roundness quick correction device according to claim 1, characterized in that: when repairing the inner wall and outer wall out-of-roundness of the pipeline (300) at the same time, the first jacking component (120) and the second jacking component (220) work together.

5. The large-diameter pipeline pipe mouth out-of-roundness quick correction device according to claim 1, characterized in that: the inner support assembly (100) comprises a stand (130), a first connecting plate (140), a second connecting plate (150), a mounting plate (160), and a support plate (170); the first connecting plate (140) and the second connecting plate (150) are respectively arranged on both sides of the mounting plate (160); the mounting plate (160) is arranged on the upper part of the stand (130); the support plate (170) is arranged on the lower part of the stand (130); the side of the support plate (170) away from the stand (130) is slidably connected with the inner wall of the pipeline (300); and the ends of the first connecting plate (140) and the second connecting plate (150) away from the stand (130) are respectively slidably connected with the inner wall of the pipeline (300).

6. The large-diameter pipeline pipe mouth out-of-roundness quick correction device according to claim 5, characterized in that: the ends of the first connecting plate (140), the second connecting plate (150), and the support plate (170) at the junctions with the inner wall of the pipeline (300) are arc surfaces matched with the inner wall of the pipeline (300).

7. The large-diameter pipeline pipe mouth out-of-roundness quick correction device according to claim 6, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The inner wall of the outer support assembly (200) is an arc surface matched with the outer wall of the pipeline (300).

8. The device for quickly correcting the out-of-roundness of the large-diameter pipeline according to claim 7, characterized in that: The inner support assembly (100) and the outer support assembly (200) are made of high-hardness metal materials.

9. The device for quickly correcting the out-of-roundness of the large-diameter pipeline according to claim 8, characterized in that: The positions where the inner support assembly (100), the outer support assembly (200) and the pipeline (300) are in contact are provided with elastic soft pads.

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