A large-diameter pipeline pipe orifice out-of-roundness quick correction device

Abstract

The present application relates to the technical field of pipeline welding, and especially relates to a large-diameter pipeline nozzle out-of-roundness quick correction device to relieve the problem that the existing equipment is easy to damage the pipeline and low in efficiency when correcting the pipeline out-of-roundness. The device comprises an inner support assembly and an outer support assembly; the inner support assembly is clamped in the pipeline; the outer support assembly is sleeved on the outside of the pipeline; the inner support assembly is provided with a first groove close to one side of the pipeline; the first groove is provided with a first jacking component, and the first jacking component can apply pressure to the inner wall of the pipeline; the outer support assembly is provided with a second groove close to one side of the pipeline; the second groove is provided with a second jacking component, and the second jacking component can apply pressure to the outer wall of the pipeline. When correcting, 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.

Description

Technical Field

[0001] This invention relates to the field of pipe welding technology, and in particular to a device for rapid correction of out-of-roundness of large-diameter pipe ends. Background Technology

[0002] High-pressure gas pipelines refer to onshore natural gas pipelines operating at pressures between 10 and 15 MPa. According to expert research, high-pressure gas transmission can save transportation costs when the annual transmission volume exceeds 1 billion cubic meters. When the transmission distance is 5000 km and the annual transmission volume is between 1.5 and 3 billion cubic meters, high-pressure gas transmission can save 20% to 35% of transportation costs compared to traditional methods. High-pressure gas transmission allows for smaller pipe diameters. The development and application of high-grade steel pipes can reduce pipe wall thickness, thereby reducing pipe weight and welding time, thus lowering construction costs. For example, using X100 pipe saves approximately 30% compared to using X65 and X70 pipes, resulting in 10% to 12% savings in pipeline construction costs. Submarine pipeline construction has also fully shifted towards larger diameters.

[0003] With the increasing efficiency of marine and land pipeline construction and the widespread adoption of fully automated welding, the requirements for pipe end roundness have become more stringent. Large-diameter pipes are inherently more difficult to process in terms of roundness, and the tolerances required by specifications cannot fully meet the efficiency demands of fully automated welding. In addition, accidental collisions and deformations of pipe ends can occur during pipeline movement, leading to more instances of excessive roundness at pipe ends in various large-diameter pipeline projects. Therefore, it is necessary to conduct rapid on-site correction of pipe ends that do not meet roundness requirements to avoid impacting overall construction efficiency or causing a series of consequences and losses due to re-manufacturing of pipes.

[0004] Currently, local pressurization is often used on construction sites to correct the pipe openings inside or outside of large-diameter pipes. However, this method can easily damage the pipe's counterweight layer. Meanwhile, expansion and reduction equipment is not suitable for on-site correction due to its large size, complex structure, poor flexibility, and low efficiency. Summary of the Invention

[0005] This invention provides a device for quickly correcting the out-of-roundness of large-diameter pipe ends, thereby alleviating the problems of easy damage to pipes and low efficiency when correcting pipe out-of-roundness using existing equipment.

[0006] To alleviate the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0007] This solution provides a device for rapid correction of out-of-roundness of large-diameter pipe nozzles, comprising an inner support assembly and an outer support assembly;

[0008] The internal support component is snapped into the inside of the pipe;

[0009] The external support component is fitted onto the outside of the pipe;

[0010] The inner support component has a first groove on the side near the pipe;

[0011] A first lifting component is provided in the first groove, and the first lifting component can apply pressure to the inner wall of the pipe.

[0012] A second groove is provided on the side of the external support component near the pipe;

[0013] A second lifting component is provided in the second groove, which can apply pressure to the outer wall of the pipe.

[0014] Furthermore,

[0015] When repairing the non-roundness of the inner wall of the pipe, remove the second lifting component, and the first lifting component can work independently.

[0016] Furthermore,

[0017] When repairing the non-roundness of the outer wall of the pipe, remove the first lifting component, and the second lifting component can work independently.

[0018] Furthermore,

[0019] When simultaneously repairing the non-roundness of the inner and outer walls of the pipe, the first lifting component and the second lifting component work together.

[0020] Furthermore,

[0021] The internal support assembly includes a column, a first connecting plate, a second connecting plate, a mounting plate, and a support plate;

[0022] The first connecting plate and the second connecting plate are respectively disposed on both sides of the mounting plate;

[0023] The mounting plate is installed on the upper part of the column;

[0024] The support plate is installed at the bottom of the column;

[0025] The side of the support plate furthest from the column is slidably connected to the inner wall of the pipe;

[0026] The ends of the first and second connecting plates furthest from the column are slidably connected to the inner wall of the pipe.

[0027] Furthermore,

[0028] The first connecting plate, the second connecting plate, and the support plate have an arc surface at the end where they meet the inner wall of the pipe, which is compatible with the inner wall of the pipe.

[0029] Furthermore,

[0030] The inner wall of the external support component is an arc surface that matches the outer wall of the pipe.

[0031] Furthermore,

[0032] Both the inner and outer support components are made of high-hardness metal.

[0033] Furthermore,

[0034] Elastic pads are installed at the points where the inner and outer support components contact the pipes.

[0035] The beneficial effects of this invention are analyzed as follows:

[0036] By combining internal and external support components, this device can simultaneously and precisely locate and correct out-of-roundness from both the inside and outside of the pipe. Furthermore, the internal and external support components mutually support the pipe, allowing the correction force to be applied more concentratedly and precisely to the location requiring adjustment, avoiding damage to the pipe and effectively improving the efficiency and accuracy of the correction. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram illustrating how this device corrects the out-of-roundness of the pipe's outer wall.

[0039] Figure 2 This is a schematic diagram illustrating how this device corrects the non-roundness of the inner wall of the pipe.

[0040] Figure 3 This is a schematic diagram of the internal support component.

[0041] Figure 4 This is a schematic diagram of the external support component.

[0042] icon:

[0043] 100 - Inner support assembly; 110 - First groove; 120 - First lifting component; 130 - Column; 140 - First connecting plate; 150 - Second connecting plate; 160 - Mounting plate; 170 - Support plate;

[0044] 200 - External support assembly; 210 - Second groove; 220 - Second lifting component;

[0045] 300-pipeline. Detailed Implementation

[0046] Existing technologies often use localized pressurization to correct pipe out-of-roundness at construction sites, but this can easily damage the pipe's counterweight layer. Meanwhile, expansion and reduction equipment is not suitable for on-site correction due to its large size, complexity, poor flexibility, and low efficiency.

[0047] In view of this, such as Figures 1 to 4 As shown, this solution provides a device for rapid correction of the non-roundness of large-diameter pipe ends, including an inner support component 100 and an outer support component 200;

[0048] The inner support component 100 is snapped into the inside of the pipe 300;

[0049] The external support component 200 is sleeved onto the outside of the pipe 300;

[0050] The inner support component 100 has a first groove 110 on the side near the pipe 300;

[0051] A first lifting component 120 is provided in the first groove 110, and the first lifting component 120 can apply pressure to the inner wall of the pipe 300;

[0052] The outer support component 200 is provided with a second groove 210 on the side near the pipe 300;

[0053] A second lifting component 220 is provided in the second groove 210, which can apply pressure to the outer wall of the pipe 300.

[0054] When using this device to correct the non-roundness of pipe 300, the inner support assembly 100 and the outer support assembly 200 are respectively installed at the pipe opening of pipe 300. After the inner support assembly 100 and the outer support assembly 200 support the two sides of the non-roundness position of the pipe opening to be adjusted, the first lifting component 120 or the second lifting component 220 is used to apply pressure to the position to correct the non-roundness. The deformation of the non-roundness position is adjusted by the protection of the inner support assembly 100 and the outer support assembly 200, so as to avoid excessive pressure and overcorrection that could damage pipe 300.

[0055] In this scheme, the first lifting component 120 and the second lifting component 220 can be hydraulic jacks or other pressurizing devices, and both are installed through a detachable connection method.

[0056] When repairing the non-roundness of the inner wall of pipe 300, remove the second lifting component 220 and the first lifting component 120 can work independently.

[0057] When repairing the non-roundness of the outer wall of pipe 300, remove the first lifting component 120 and the second lifting component 220 can work independently.

[0058] When simultaneously repairing the non-roundness of the inner and outer walls of pipe 300, the first lifting component 120 and the second lifting component 220 work together.

[0059] The internal support assembly 100 includes a column 130, a first connecting plate 140, a second connecting plate 150, a mounting plate 160, and a support plate 170;

[0060] The first connecting plate 140 and the second connecting plate 150 are respectively disposed on both sides of the mounting plate 160;

[0061] Mounting plate 160 is installed on the upper part of column 130;

[0062] Support plate 170 is located at the lower part of column 130;

[0063] The side of the support plate 170 away from the column 130 is slidably connected to the inner wall of the pipe 300;

[0064] The ends of the first connecting plate 140 and the second connecting plate 150 furthest from the column 130 are slidably connected to the inner wall of the pipe 300.

[0065] Specifically, the inner support component 100 is Y-shaped and installed inside the pipe 300. The column 130, the first connecting plate 140, the second connecting plate 150, the mounting plate 160 and the support plate 170 are all connected together by welding.

[0066] It should be noted that the installation method shown in the figure is for illustrative purposes only. In actual applications, the relative positions of the inner support component 100 and the outer support component 200 can be adjusted. For example, when repairing the non-roundness of the inner wall of the pipe 300, the outer support component 200 can be rotated by a certain angle to move the second groove 210 away from the position of the non-roundness to be corrected. When repairing the non-roundness of the outer wall of the pipe 300, the inner support component 100 can be rotated by a certain angle to make the support plate 170 fit against the inner wall of the position of the non-roundness to be corrected. Therefore, when there are multiple positions to be corrected on both the inner and outer walls of the pipe 300, the first lifting component 120 and the second lifting component 220 can work simultaneously to improve work efficiency.

[0067] Preferably, the ends of the first connecting plate 140, the second connecting plate 150, and the support plate 170 that meet the inner wall of the pipe 300 are arc surfaces that mate with the inner wall of the pipe 300, and the inner wall of the outer support component 200 is an arc surface that mates with the outer wall of the pipe 300, so that when the first lifting component 120 and the second lifting component 220 apply pressure, they avoid damaging the roundness of other parts of the pipe 300.

[0068] Since the pipe 300 is supported by special high-pressure resistant steel, which has high tensile and compressive strength, both the inner support component 100 and the outer support component 200 are made of high-hardness metal material to avoid damage during processing and thus personal safety issues.

[0069] Preferably, in order to minimize secondary damage to the pipe 300 during correction, elastic pads are provided at the contact points between the inner support component 100, the outer support component 200 and the pipe 300 to protect the pipe 300 from damage such as crushing at the contact points between the inner support component 100 and the outer support component 200.

[0070] This solution has at least the following beneficial effects:

[0071] 1. Improved Correction Efficiency and Accuracy: By combining internal and external support components, this device can simultaneously and accurately locate and correct out-of-roundness from both the inner and outer sides of the pipe 300. The design of the inner support component 100 and the outer support component 200 allows the correction force to be applied more concentratedly and precisely to the position requiring adjustment, thereby effectively improving the efficiency and accuracy of the correction.

[0072] 2. Preventing Pipeline Damage: The internal and external support components are designed with curved surfaces that match the pipe wall and include elastic padding. This significantly reduces secondary damage to the pipe during repairs, especially protecting the pipe's counterweight layer from damage. This is crucial for maintaining the integrity and functionality of the pipeline.

[0073] 3. High adaptability and flexibility: The relative positions of the internal and external support components can be adjusted arbitrarily, providing a high degree of flexibility that allows the device to adapt to different working environments and specific requirements. Furthermore, the internal and external components can be used independently or in combination to accommodate different correction needs for inner and outer wall out-of-roundness.

[0074] 4. Reduced costs and improved on-site adaptability: Compared to traditional expansion or reduction equipment, this correction device is more suitable for on-site use due to its smaller size and simplified structure. This design saves on transportation and operating costs and reduces interference with other on-site operations.

[0075] 5. Enhanced safety: Since all components are made of high-pressure resistant and high-hardness metal materials, and elastic pads are added to key contact surfaces, the safety of the entire operation is increased and the risk to personal safety during construction is reduced.

[0076] 6. Wide range of application potential: This device is particularly suitable for critical facilities such as large-diameter marine pipelines, and can complete rapid on-site corrections without returning to the factory, which is crucial for maintaining the stability of energy and resource transportation.

[0077] In summary, this solution provides a correction device with a reasonable structure, simple operation, and effective prevention of secondary damage to pipelines. It not only improves correction efficiency and safety but also reduces operating costs, and has good market application prospects and practical value.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for rapid correction of out-of-roundness of large-diameter pipe ends, characterized in that: Includes an inner support assembly (100) and an outer support assembly (200); The inner support assembly (100) is snapped into the inside of the pipe (300); The external support assembly (200) is sleeved on the outside of the pipe (300); The inner support assembly (100) has a first groove (110) on the side near the pipe (300). A first lifting component (120) is provided in the first groove (110), and the first lifting component (120) can apply pressure to the inner wall of the pipe (300); The outer support assembly (200) has a second groove (210) on the side near the pipe (300); A second lifting component (220) is provided in the second groove (210), and the second lifting component (220) can apply pressure to the outer wall of the pipe (300); The inner support assembly (100) includes a column (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 disposed on both sides of the mounting plate (160); The mounting plate (160) is disposed on the upper part of the column (130); The support plate (170) is disposed at the lower part of the column (130); The side of the support plate (170) away from the column (130) is slidably connected to the inner wall of the pipe (300); The ends of the first connecting plate (140) and the second connecting plate (150) away from the column (130) are respectively slidably connected to the inner wall of the pipe (300); The first connecting plate (140), the second connecting plate (150) and the support plate (170) are connected to the inner wall of the pipe (300) at one end, which is an arc surface that matches the inner wall of the pipe (300); When repairing the non-roundness of the inner wall of the pipe (300), the second lifting component (220) is removed, and the first lifting component (120) works independently; When repairing the non-roundness of the outer wall of the pipe (300), the first lifting component (120) is removed, and the second lifting component (220) works independently; When simultaneously repairing the non-roundness of the inner and outer walls of the pipe (300), the first lifting component (120) and the second lifting component (220) work together.

2. The device for rapid correction of out-of-roundness of large-diameter pipe ends according to claim 1, characterized in that: The inner wall of the outer support component (200) is an arc surface that matches the outer wall of the pipe (300).

3. The device for rapid correction of out-of-roundness of large-diameter pipe ends according to claim 2, characterized in that: Both the inner support assembly (100) and the outer support assembly (200) are made of high-hardness metal.

4. The device for rapid correction of out-of-roundness of large-diameter pipe ends according to claim 3, characterized in that: Elastic pads are provided at the positions where the inner support assembly (100), the outer support assembly (200), and the pipe (300) come into contact.

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