Narrow space pipeline misalignment adjusting device and use method

Abstract

This invention discloses a device and method for adjusting pipe misalignment in confined spaces, comprising a main frame, an extrusion structure, side baffles, and clamping bolts. The main frame is a hollow frame structure with an opening, enclosing a pipe-accommodating cavity. The extrusion structure is threadedly connected to the main frame and is used to radially press against the outer wall of the pipe to adjust misalignment. The side baffles are detachably disposed at the opening of the main frame. The clamping bolts are threadedly used to connect the main frame and the side baffles, with the end of the clamping bolts abutting against the side baffles to drive the side baffles to clamp the outer wall of the pipe. The advantages of this invention are that the device has a simple structure and low cost, can quickly and accurately adjust pipe misalignment in confined spaces, significantly improves alignment efficiency and weld formation quality, and is reusable.

Description

Technical Field

[0001] This invention belongs to the field of industrial pipeline welding and installation technology, specifically relating to a misalignment adjustment device for pipelines in confined spaces and its usage method. Background Technology

[0002] In industrial engineering construction, the welding and installation of industrial pipelines is a core construction link. The alignment work before pipeline welding directly determines the construction efficiency and the quality of the weld, and is a key process in pipeline construction. With the continuous improvement of the integration level of engineering construction, the on-site pipeline layout is becoming more and more dense and complex. A large number of pipeline alignment operations need to be carried out in narrow spaces such as near walls, between equipment, and in narrow gaps in pipe corridors. The working space is extremely limited, which brings great obstacles to pipeline alignment construction.

[0003] Current traditional pipe alignment tools are generally large and complex in structure, requiring ample operating space. They cannot be properly installed and operated in confined spaces, making them unsuitable for on-site construction needs. Construction workers often resort to manual prying and repeated repositioning to adjust pipe misalignment, which is not only labor-intensive and time-consuming but also fails to guarantee alignment accuracy, easily leading to excessive misalignment and uneven gaps, severely impacting weld quality and increasing rework rates. Furthermore, existing alignment tools often suffer from high manufacturing costs, a narrow range of compatible pipe diameters, and non-reusability, failing to meet the demands for efficient, precise, and low-cost pipe alignment in confined spaces.

[0004] To solve the above-mentioned technical problems, it is urgent to develop a pipe misalignment adjustment device that is simple in structure, adaptable to narrow spaces, easy to operate, and reusable, so as to simplify the construction process, improve the efficiency and accuracy of alignment, and ensure the quality of pipe welding construction. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device and method for adjusting pipe misalignment in confined spaces. This invention addresses the pain points of traditional pipe alignment tools being "difficult to use and cumbersome to operate" when working in confined spaces such as near walls, equipment gaps, and narrow gaps in pipe corridors. It also solves the defects of existing alignment methods, such as low efficiency, difficulty in guaranteeing accuracy, and poor weld formation quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In one aspect, a device for adjusting the misalignment of pipes in confined spaces is provided, comprising a main frame, an extrusion structure, side baffles, and clamping bolts;

[0008] The main frame is a hollow frame structure with an opening, which encloses and forms a cavity for receiving the pipe.

[0009] The extrusion structure is threadedly connected to the main frame and is used to press against the outer wall of the pipe radially to adjust misalignment.

[0010] The side baffle is detachably installed at the opening of the main frame;

[0011] The clamping bolt is threaded to connect the main frame and the side baffle. The end of the clamping bolt abuts against the side baffle to drive the side baffle to clamp the outer wall of the pipe.

[0012] Furthermore, the main frame is an integrally bent C-shaped hollow frame structure, consisting of an upper horizontal plate, a lower horizontal plate, and side plates that vertically connect the two.

[0013] Furthermore, the upper horizontal plate and the lower horizontal plate are provided with axially extending welding operation windows.

[0014] Furthermore, the extrusion structure includes a screw, a pressure plate, and a handle. The screw is threadedly connected to the main frame, the pressure plate is located at the end of the screw facing inward toward the main frame, and the handle is located at the end of the screw facing outward toward the main frame.

[0015] Furthermore, the number of the extrusion structures is at least three sets, respectively disposed on the upper part, lower part and side opposite to the side baffle of the main frame.

[0016] Furthermore, the number of side baffles is at least two, and the side baffles are symmetrically arranged at the openings of the main frame.

[0017] Furthermore, the side baffle is an integrally bent plate structure, including a bottom plate and two vertical connecting plates symmetrically arranged at both ends; each connecting plate is provided with vertically arranged circular bolt holes and horizontal elongated slots, all of which penetrate the thickness of the connecting plate; the side of the bottom plate facing the pipe is the surface that is in contact with the outer wall of the pipe.

[0018] The present invention also provides a method of using the above-mentioned narrow space pipe misalignment adjustment device, comprising the following steps:

[0019] The main frame is fitted onto the outside of the single pipe to be aligned, and the extrusion structure and the clamping bolts are tightened so that the pressure plate presses against the outer wall of the pipe and the side baffle clamps the outer wall of the pipe, thus completing the pre-tightening of the device.

[0020] Loosen the upper extrusion structure and the side extrusion structure to allow the device to move along the pipe axis; hoist the pipe with the device pre-tightened to the joint position using a chain hoist, then move the device to the middle position of the two pipe joints, and tighten the upper extrusion structure and the side extrusion structure to press against the weld gap reserved at the joint of the two pipes to fix the pipe opening.

[0021] Spot welding is performed at the pipe joints through the spot welding operation windows at the top and bottom of the main frame.

[0022] Loosen the upper extrusion structure and the side extrusion structure, and reposition the device;

[0023] After all welding is completed, remove the side baffle and take the device off the pipe through the opening in the main frame.

[0024] The advantages and positive effects of this invention are:

[0025] This invention effectively solves the industry pain points of difficult pipe alignment in confined spaces, poor adjustment accuracy, and low construction efficiency. It significantly simplifies the pipe alignment construction process, reduces manual labor intensity and construction difficulty, and ensures uniform pipe alignment gaps and meets the standards for misalignment through precise radial tightening and clamping positioning. This significantly improves weld formation quality and construction stability. At the same time, it shortens the alignment operation time, improves the overall pipe welding construction efficiency, and meets the high-efficiency and high-quality construction needs of industrial engineering sites. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a misalignment adjustment device according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the extrusion structure according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of a side baffle according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the main frame structure according to an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the usage state of a pipe misalignment adjustment device according to an embodiment of the present invention;

[0031] Figure 6 This is a schematic flowchart illustrating the usage method of a pipe misalignment adjustment device according to an embodiment of the present invention.

[0032] In the diagram: 1. Extrusion structure, 11. Pressure plate, 12. Screw, 13. Handle, 2. Side baffle, 21. Fitting base plate, 22. Connecting upright plate, 23. Bolt hole, 24. Long slot hole, 3. Clamping bolt, 4. Main frame, 41. Upper horizontal plate, 42. Lower horizontal plate, 43. Side upright plate, 44. Nut seat, 45. Spot welding operation window. Detailed Implementation

[0033] The present invention will now be described more fully with reference to the accompanying drawings, which illustrate exemplary embodiments of the invention. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] like Figure 1 and Figure 5 As shown, the present invention provides a pipe misalignment adjustment device for narrow space, which is used to adjust the misalignment of pipe openings in narrow space, including a compression structure 1, a side baffle 2, a clamping bolt 3 and a main frame 4.

[0035] like Figure 4 As shown, in order to form an installation space suitable for the pipeline, the main frame 4 is a hollow frame structure with an opening, which encloses and forms a pipeline receiving cavity; in order to improve the overall structure and strength, the main frame 4 is a C-shaped hollow frame structure formed by integral bending, which consists of an upper horizontal plate 41, a lower horizontal plate 42 and a side plate 43 that vertically connects the two; in order to achieve a stable threaded connection of the components, a nut seat 44 with internal threads is welded and fixed on the outer surface of the main frame 4 frame body, and the nut seat 44 forms a threaded hole; in order to facilitate the construction personnel to directly complete the spot welding operation, axially extending spot welding operation windows 45 are opened on the upper and lower parts of the main frame 4, and the spot welding operation windows 45 penetrate the thickness of the main frame 4 frame body.

[0036] like Figure 2 As shown, in order to achieve radial tightening and misalignment adjustment of the pipe, the extrusion structure 1 is threadedly connected to the threaded hole of the main frame 4; in order to meet the multi-directional misalignment adjustment requirements, multiple sets of extrusion structures 1 include at least an upper extrusion structure, a lower extrusion structure and a side extrusion structure, which are respectively installed on the upper part, the lower part and the side opposite to the side baffle 2 of the main frame 4; in order to complete the screwing drive and pipe tightening operation, the extrusion structure 1 includes a pressure plate 11, a screw 12 and a handle 13. The screw 12 is threadedly connected to the threaded hole of the main frame 4, the pressure plate 11 is located at the end of the screw 12 facing the inside of the main frame 4, and the handle 13 is located at the end of the screw 12 away from the pressure plate 11.

[0037] like Figure 3As shown, in order to achieve lateral clamping of the pipe and quick assembly and disassembly of the device, the side baffle 2 is detachably installed at the opening of the main frame 4; in order to improve the stability of pipe clamping, there are at least two side baffles 2, which are symmetrically arranged at the opening of the main frame 4; in order to adapt to the outer wall of the pipe and realize installation adjustment, the side baffle 2 is a plate structure formed by bending in one piece, including a base plate 21 and two vertical connecting plates 22 symmetrically arranged at both ends; in order to meet the installation and adjustment requirements, each connecting plate 22 has a circular bolt hole 23 and a horizontal long slot hole 24 arranged vertically, and the circular bolt hole 23 and the horizontal long slot hole 24 penetrate the thickness of the connecting plate 22; in order to increase the contact area with the pipe, the side of the base plate 21 facing the pipe is a fitting surface adapted to the outer wall of the pipe.

[0038] In order to drive the side baffle 2 to complete the pipe clamping action, the clamping bolt 3 is threadedly connected in the threaded hole of the main frame 4. The end of the clamping bolt 3 abuts against the side of the side baffle 2 away from the pipe. Tightening the clamping bolt 3 can push the side baffle 2 to move radially along the pipe.

[0039] like Figure 6 As shown, the present invention also provides a method for using the misalignment adjustment device for pipes in confined spaces, comprising the following steps:

[0040] S10. Place the main frame over the outside of the single pipe to be aligned, tighten the extrusion structure and clamping bolts to make the pressure plate press against the outer wall of the pipe and the side baffle clamp the outer wall of the pipe, thus completing the pre-tightening of the device. In order to ensure the pre-tightening effect, first tighten the upper extrusion structure and the lower extrusion structure, then tighten the clamping bolts to make the upper and lower side baffles press against the outer wall of the pipe, and finally tighten the side extrusion structure.

[0041] S20. Loosen the upper extrusion structure and the side extrusion structure to allow the device to move axially along the pipeline; hoist the pipeline with the pre-tightened device to the alignment position using a chain hoist, and then move the device to the middle position of the two pipeline joints; to prevent the device from slipping off, when loosening the upper extrusion structure and the side extrusion structure, keep the lower extrusion structure and clamping bolts in a pre-tightened state, and tighten the upper extrusion structure and the side extrusion structure to press against the weld gap reserved at the joint of the two pipelines to fix the pipe opening.

[0042] S30. Spot weld the pipe joints through the spot welding operation windows on the upper and lower parts of the main frame; in order to improve the stability of the pipe joint fixing, spot weld the two pipe joints circumferentially through the spot welding operation window.

[0043] S40. After spot welding is completed, loosen the upper extrusion structure and the side extrusion structure, move the device along the pipeline axis to another pipeline docking position, and repeat S20 and S30 to complete the repositioning operation.

[0044] S50. After welding is completed, remove the side baffle and take the device off the pipe through the opening in the main frame.

[0045] To improve the applicability of the device, the main frame 4, extrusion structure 1, and side baffle 2 are all made of steel plates. The overall structure is simple and the manufacturing cost is low. It can be adapted to the matching operation of pipes of different diameters and can be used normally in narrow spaces such as near walls, equipment gaps, and narrow gaps in pipe corridors. It can be reused repeatedly.

[0046] In one specific embodiment, the main frame 4 is integrally bent from a Q235 steel plate with a thickness of 8mm. The upper horizontal plate 41 and the lower horizontal plate 42 are 200mm long and 150mm wide, and the side upright plate 43 is 300mm high. The nut seat 44 is an M16 hexagonal nut, welded to the outer surface of the main frame 4. The screw 12 of the extrusion structure 1 is an M16 fully threaded screw with a length of 150mm. The pressure plate 11 is made of a 10mm thick steel plate with a diameter of 50mm. The pressure plate 11 and the screw 12 are rotatably connected by a thrust bearing. The handle 13 is made of a 10mm diameter round steel with a length of 100mm. The side baffle 2 is integrally bent from a Q235 steel plate with a thickness of 6mm. It is 150mm long and 80mm wide, and the height of the connecting upright plate 22 is 60mm. The clamping bolt 3 is an M16 hexagonal bolt with a length of 80mm. This device is suitable for aligning industrial pipes with diameters of 100mm-500mm.

[0047] The working principle of this device is as follows: multiple sets of extrusion structures 1 apply radial force to the outer wall of the pipe from different directions, and the screw 12 uses thread transmission to achieve precise micron-level displacement adjustment, thereby accurately adjusting the misalignment at the joint of the two pipes; the side baffle 2 cooperates with the clamping bolt 3 to achieve stable clamping of the device on the pipe; the axial spot welding operation window 45 on the main frame 4 allows construction personnel to directly perform circumferential spot welding without disassembling the device, avoiding pipe displacement during spot welding and ensuring the stability of the joint accuracy.

[0048] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A device for adjusting the misalignment of pipes in confined spaces, characterized in that, Includes the main frame, extrusion structure, side panels, and clamping bolts; The main frame is a hollow frame structure with an opening, which encloses and forms a cavity for receiving the pipe. The extrusion structure is threadedly connected to the main frame and is used to press against the outer wall of the pipe radially to adjust misalignment. The side baffle is detachably installed at the opening of the main frame; The clamping bolt is threaded to connect the main frame and the side baffle. The end of the clamping bolt abuts against the side baffle to drive the side baffle to clamp the outer wall of the pipe.

2. The narrow space pipe misalignment adjustment device according to claim 1, characterized in that: The main frame is a C-shaped hollow frame structure formed by integral bending, consisting of an upper horizontal plate, a lower horizontal plate, and side plates that vertically connect the two.

3. The narrow space pipe misalignment adjustment device according to claim 2, characterized in that: The upper horizontal plate and the lower horizontal plate are provided with axially extending welding operation windows.

4. The narrow space pipe misalignment adjustment device according to claim 1, characterized in that: The extrusion structure includes a screw, a pressure plate, and a handle. The screw is threadedly connected to the main frame, the pressure plate is located at the end of the screw facing inward toward the main frame, and the handle is located at the end of the screw facing outward toward the main frame.

5. The narrow space pipe misalignment adjustment device according to claim 3, characterized in that: The number of extrusion structures is at least three sets, which are respectively arranged on the upper part, lower part and side opposite to the side baffle of the main frame.

6. The narrow space pipe misalignment adjustment device according to claim 1, characterized in that: The number of side baffles is at least two, and the side baffles are symmetrically arranged at the openings of the main frame.

7. The narrow space pipe misalignment adjustment device according to claim 1, characterized in that: The side baffle is a plate-shaped structure formed by bending in one piece, including a bottom plate and two vertical connecting plates symmetrically arranged at both ends; each connecting plate is provided with circular bolt holes arranged vertically and horizontal elongated slot holes, all of which penetrate the thickness of the connecting plate; the side of the bottom plate facing the pipe is the surface that is in contact with the outer wall of the pipe.

8. A method of using a pipe misalignment adjustment device in a confined space, characterized in that, Using the narrow space pipe misalignment adjustment device as described in any one of claims 1-7 includes the following steps: The main frame is fitted onto the outside of the single pipe to be aligned, and the extrusion structure and the clamping bolts are tightened so that the pressure plate presses against the outer wall of the pipe and the side baffle clamps the outer wall of the pipe, thus completing the pre-tightening of the device. Loosen the upper extrusion structure and the side extrusion structure, move the device to the middle position of the two pipe joints, and tighten the upper extrusion structure and the side extrusion structure so that they press against the welding gap at the two pipe joints to fix the pipe opening. Spot welding is performed at the pipe joints through the spot welding operation windows at the top and bottom of the main frame. Loosen the upper extrusion structure and the side extrusion structure, and reposition the device; After welding is completed, the side baffle is removed, and the device is taken off the pipe through the opening in the main frame.

Images