Pipeline centering regulation and control device for in-service generator set before welded junction recovery
The pipe alignment system with radial and axial adjustment components addresses poor alignment in large diameter pipes by using adjustable screws to enhance alignment precision and welding quality.
Patent Information
- Application Number
- CN202422319687.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-23
AI Technical Summary
In the prior art, large diameter pipelines have poor quality effect before welding, resulting in poor welding quality and stress status of the pipe system.
The radial and axial adjustment components are adopted to control the pipe centering by adjusting screws and abutment modules, and the locking parts and base fixing are combined to achieve accurate centering of the pipe.
The centering quality and welding quality of large-diameter pipelines are improved, the operation process is simplified, and the installation efficiency is improved.
Smart Images
Figure CN223098449U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pipeline welding, in particular to a pipeline centering and regulating device before the weld of an in-service generating unit is restored. Background Art
[0002] Achieving the centering and fixation of pipelines before welding is an unavoidable problem in the process of restoring the weld after pipe cutting and sampling in power station pipelines. The accurate centering of pipelines before welding is the prerequisite for ensuring the welding quality of pipelines, reducing the structural stress of pipe systems, and extending the service life of equipment. In the process of restoring the weld after pipe cutting and sampling in existing power station pipelines, the centering of pipelines before welding is generally achieved by using a flexible bandage fixation method. Because the diameter and weight of the welded pipelines are relatively large, there are too many uncertain influencing factors in the actual operation process of this method, such as: poor pipe anchoring stiffness, being easily disturbed by external forces during operation, and a high degree of human factor influence. The centering quality effect of large-diameter pipelines is poor, which has an adverse impact on the welding quality of pipelines and the stress state of pipe systems. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a pipeline centering and regulating device before the weld of an in-service generating unit is restored, aiming to solve the problem of poor centering quality effect of large-diameter pipelines in the prior art.
[0004] The technical solution adopted by the utility model to solve its technical problem includes: a radial adjustment component and an axial adjustment component; the axial adjustment component includes a first base respectively fixedly connected to two sections of pipelines, a connecting piece movably connecting the two first bases, and a locking piece for fixing the connecting piece to the first base; the radial adjustment component includes a plurality of second bases fixedly connected to one section of the pipeline, a radial bearing bridge movably connected to the second bases, and an adjustment unit movably connected to the radial bearing bridge. The adjustment unit includes an adjustment screw and an abutting module. The adjustment screw is threadedly connected to the radial bearing bridge, and the adjustment screw controls the abutting module to abut against the other section of the pipeline.
[0005] In an embodiment, the abutting module is provided with an abutting portion, and the abutting portion is in point contact with the pipeline.
[0006] In an embodiment, the abutting module further includes a sleeve threadedly connected to the adjustment screw, the abutting portion is arranged in the sleeve, and the sleeve can axially move relative to the adjustment screw.
[0007] In an embodiment, the abutting portion is a rolling element, and the adjustment screw abuts against the rolling element.
[0008] In an embodiment, a cushion block is further arranged between the adjustment screw and the rolling element.
[0009] In one embodiment, the radial load-bearing bridge is provided with a plurality of threaded through holes that match the adjusting screws.
[0010] In one embodiment, the first base includes a first anchoring nut and an axial load-bearing bridge. The first anchoring nut is fixed on the pipeline, and a threaded connection part is provided below the axial load-bearing bridge. The threaded connection part is connected in the first anchoring nut.
[0011] In one embodiment, the connecting piece is a bolt, and the locking piece includes a locking nut. The bolt passes through the two axial load-bearing bridges and is locked and fixed by the locking nut.
[0012] In one embodiment, the second base includes a second anchoring nut and a mating nut. A support screw is provided at the connection between the radial load-bearing bridge and the second base. The support screw is threadedly connected to the second anchoring nut. The mating nut is arranged on the support screw, and the mating nut is used to lock the support screw and the second anchoring nut.
[0013] In one embodiment, at least three groups of the radial adjustment assemblies are evenly distributed on the pipeline, and at least two groups of the axial adjustment assemblies are evenly distributed on the pipeline.
[0014] Implementing the present utility model has the following beneficial effects: First, fix the first base and the second base on the pipeline, then install the radial adjustment assembly, install the radial load-bearing bridge on the second base, the adjusting screw is threadedly connected to the radial load-bearing bridge, and the abutting module is controlled by the adjusting screw to abut against another section of the pipeline. The centering effect of the two sections of the pipeline is adjusted through the adjusting screw. Finally, install the axial adjustment assembly, and the distance between the two first bases is pulled closer and locked through the connecting piece and the locking piece. After the radial distance and the axial distance of the pipeline are fixed successively, welding can be carried out. The whole centering process is simple and convenient, the installation efficiency is high, it is easy to carry out centering on large-diameter pipelines and control the distance between the pipelines, and the centering quality and welding quality of the pipelines are improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the present utility model, the present utility model will be further described below in conjunction with the drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings. In the drawings:
[0016] Figure 1 is an overall view of a pipeline centering and regulating device before the restoration of a welded joint of an in-service generating set in an embodiment of the present utility model;
[0017] Figure 2 It is the front view of a pipeline centering and regulating device before the restoration of a welded joint of an in-service generator set in an embodiment of the present utility model;
[0018] Figure 3 It is the right view of a pipeline centering and regulating device before the restoration of a welded joint of an in-service generator set in an embodiment of the present utility model;
[0019] Figure 4 It is the front view of a radial adjustment assembly of a pipeline centering and regulating device before the restoration of a welded joint of an in-service generator set in an embodiment of the present utility model;
[0020] Figure 5 It is the sectional view of a radial adjustment assembly of a pipeline centering and regulating device before the restoration of a welded joint of an in-service generator set in an embodiment of the present utility model;
[0021] Figure 6 It is the overall view of an axial adjustment assembly of a pipeline centering and regulating device before the restoration of a welded joint of an in-service generator set in an embodiment of the present utility model.
[0022] Reference Signs of the Drawings
[0023] 100, pipeline; 200, radial adjustment assembly; 210, radial bearing bridge; 211, support screw; 220, second anchoring nut; 221, mating nut; 230, adjustment screw; 240, abutting module; 241, sleeve; 242, cushion block; 243, rolling element; 300, axial adjustment assembly; 310, axial bearing bridge; 311, threaded connection part; 320, first anchoring nut; 330, connecting piece; 340, locking piece; 341, gasket; 342, locking nut. Detailed implementation manners
[0024] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific implementation manners of the present utility model will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientation or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings and are constructed and operated in a specific orientation, and are only for the convenience of describing the present technical solution, rather than indicating that the indicated device or element must have a specific orientation, so it should not be construed as a limitation to the present utility model.
[0025] It should also be noted that, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. When a component is referred to as "above" or "below" another component, the component can be "directly" or "indirectly" located above the other component, or there may also be one or more intermediate components. The terms "first", "second", "third", etc. are only for the convenience of describing the technical solution of the present invention and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", etc. can explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0026] Figures 1 to 6A pipeline centering and regulating device before weld restoration of an in-service generator set in an embodiment of the utility model is shown. The pipeline centering and regulating device before weld restoration of an in-service generator set can be used for rapid centering of a large-diameter pipeline 100, and may include a radial adjustment component 200 and an axial adjustment component 300; the axial adjustment component 300 includes first bases fixedly connected to two sections of the pipeline 100, respectively, a connecting piece 330 movably connecting the two first bases, and a locking piece 340 fixing the connecting piece 330 to the first base; the radial adjustment component 200 includes a plurality of second bases fixedly connected to one section of the pipeline 100, a radial load-bearing bridge 210 movably connected to the second base, and an adjustment unit movably connected to the radial load-bearing bridge 210, the adjustment unit including an adjustment screw 230 and an abutment module 240, the adjustment screw 230 is threadedly connected to the radial load-bearing bridge 210, and the adjustment screw 230 controls the abutment module 240 to abut against another section of the pipeline 100. First, fix the first base and the second base on the pipe 100, then install the radial adjustment component 200, install the radial load-bearing bridge 210 on the second base, and adjust the screw 230 to be connected to the radial load-bearing bridge 210 through threads. The abutment module 240 is controlled by adjusting the screw 230 to abut against another section of the pipe 100, and the centering effect of the two sections of the pipe 100 is adjusted by adjusting the screw 230. Finally, install the axial adjustment component 300, and tighten the distance between the two first bases through the connecting piece 330 and the locking piece 340. After the radial distance and axial distance of the pipe 100 are fixed in turn, welding can be carried out. The whole centering process is simple and convenient, with high installation efficiency, and it is easy to center large-diameter pipes 100 and control the distance between pipes 100, thereby improving the centering quality and welding quality of the pipe 100.
[0027] It should be understood that the first base and the second base will not be removed from the pipeline 100 after being fixed.
[0028] Figure 4 and Figure 5 The abutment module in one embodiment may include the abutment module 240 having an abutment portion, and the abutment portion is in point contact with the pipeline 100. Point contact can reduce the friction force of the contact between the abutment module and the pipeline.
[0029] In a specific embodiment, the shape of the portion of the abutting portion that contacts the pipe 100 may be arc-shaped, spherical, pointed, or other shapes.
[0030] Figure 4 and Figure 5 The abutment module in one embodiment may include that the abutment module 240 also includes a sleeve 241 threadedly connected to the adjustment screw 230 , the abutment portion is arranged in the sleeve 241 , and the sleeve 241 can move axially relative to the adjustment screw 230 .
[0031] Understandably, the sleeve 241 is threadedly connected to the adjustment screw 230, and the distance between the sleeve 241 and the adjustment screw 230 can be adjusted by rotating the sleeve 241 itself.
[0032] Figure 4 and Figure 5 It is shown that in one embodiment, the abutting module 240 may include the abutting portion as a rolling member 243, and the adjustment screw 230 abuts against the rolling member 243.
[0033] In a specific embodiment, in one embodiment, the rolling member 243 may include a rolling member 243 such as a ball or a roller, etc., which are rotatable parts. The ball has a small frictional force, which is convenient for the abutting module 240 to be dragged on the pipeline 100.
[0034] Figure 4 and Figure 5 It is shown that in one embodiment, the abutting module 240 may include a cushion block provided between the adjustment screw and the rolling member. The cushion block is mainly used to reduce the frictional force between the rolling member and the adjustment screw, and facilitate the rotation of the rolling member.
[0035] Figure 4 and Figure 5 It is shown that in one embodiment, the radial load-bearing bridge 210 may include a plurality of threaded through holes matching the adjustment screw 230. The plurality of threaded through holes are used for adjusting the position of the adjustment screw 230 to ensure that the abutting module 240 can abut against the pipeline 100 at a suitable position, and improve the centering effect.
[0036] Figure 6 It is shown that in one embodiment, the first base may include a first anchoring nut 320 and an axial load-bearing bridge 310. The first anchoring nut 320 is fixed on the pipeline 100. A threaded connection portion 311 is provided below the axial load-bearing bridge 310, and the threaded connection portion 311 is connected in the first anchoring nut 320.
[0037] Figure 6 It is shown that in one embodiment, the connecting member 330 and the locking member 340 may include the connecting member 330 as a bolt, and the locking member 340 includes a locking nut 342. The bolt passes through the two axial load-bearing bridges 310 and is locked and fixed by the locking nut 342. By selecting the screw to tighten the two axial load-bearing bridges 310, the two pipelines 100 are brought closer to each other.
[0038] Figure 6It is shown that the locking member 340 may include a gasket 341 in one embodiment. Two gaskets 341 are arranged on the axial load-bearing bridge 310. The bolts pass through the gaskets 341 and are locked and fixed by locking nuts 342. The gaskets 341 are fixed on the axial load-bearing bridge 310 to increase the contact area of the connecting member 330. The locking nuts 342 cooperate with the bolts to bring the axial load-bearing bridge 310 closer.
[0039] Figure 4 and Figure 5 It is shown that the second base may include a second anchor nut 220 and a mating nut 221 in one embodiment, and a support screw 211 is provided at the connection between the radial load-bearing bridge 210 and the second base. The support screw 211 is threadedly connected to the second anchor nut 220, and the mating nut 221 is arranged on the support screw 211. The mating nut 221 is used to lock the screw and the second anchor nut 220. The support screw 211 is threadedly connected in the second anchor nut 220, and the mating nut 221 is sleeved on the support screw 211 and rotated to abut against the second anchor nut 220, thereby locking the support screw 211 in the second anchor nut 220.
[0040] Figures 1 to 3 It is shown that the radial adjustment assembly 200 may include at least three groups of radial adjustment assemblies 200 evenly distributed on the pipe 100 in one embodiment. Because radial thrust is applied to the pipe 100, if there are only two groups of radial adjustment assemblies 200, it is not possible to limit the circular pipe 100. At least three groups are required to completely limit the circular pipe 100, so as to facilitate adjustment of the centering effect.
[0041] In a specific embodiment, the radial adjustment components 200 may be four groups, which are evenly distributed on the pipeline 100, so as to facilitate the centering adjustment of the pipeline 100 in the horizontal and vertical directions.
[0042] Figures 1 to 3 It is shown that in one embodiment, the axial adjustment assembly 300 may include at least two groups of axial adjustment assemblies 300 evenly distributed on the pipe 100. Because the large-diameter pipe 100 needs to be shortened, if only one group of axial adjustment assemblies 300 is used to apply tension on one side, the pipe 100 is prone to uneven force, resulting in offset, which affects the centering effect.
[0043] Figures 1 to 3 It is shown that the scraper tube assembly in one embodiment may include a first base and a second base made of the same material as the pipe 100. The same material facilitates welding of the pipe 100, the first base and the second base together during welding, and improves the welding strength.
[0044] In a specific embodiment, the materials of the first base and the second base can also be Inconel 718. Inconel 718 is a precipitation-hardened nickel-chromium-iron alloy containing niobium and molybdenum, which has high strength at 700 °C, good toughness, and corrosion resistance in both high and low temperature environments.
[0045] It can be understood that the above embodiments only represent the preferred implementation modes of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can also be made, which all fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.
Claims
1. A pipeline centering and regulating device before the restoration of welded joints of an in-service generating set, characterized in that Comprising: A radial adjustment assembly (200) and an axial adjustment assembly (300); The axial adjustment assembly (300) includes a first base respectively fixedly connected to two sections of pipes (100), a connecting member (330) movably connecting the two first bases, and a locking member (340) for fixing the connecting member (330) to the first base; The radial adjustment assembly (200) includes a plurality of second bases fixedly connected to one section of the pipe (100), a radial load-bearing bridge (210) movably connected to the second bases, and an adjustment unit movably connected to the radial load-bearing bridge (210). The adjustment unit includes an adjustment screw (230) and an abutting module (240). The adjustment screw (230) is threadedly connected to the radial load-bearing bridge (210), and the adjustment screw (230) controls the abutting module (240) to abut against the other section of the pipe (100).
2. The pipeline centering and regulation device before the weld joint restoration of an in-service generator set according to claim 1, wherein, The abutting module (240) is provided with an abutting portion, and the abutting portion is in point contact with the pipe (100).
3. The pipeline centering and regulating device before the weld joint restoration of an in-service generating unit according to claim 2, characterized in that The abutting module (240) further includes a sleeve (241) threadedly connected to the adjustment screw (230). The abutting portion is arranged in the sleeve (241), and the sleeve (241) can axially move relative to the adjustment screw (230).
4. The pipeline centering and regulating device before the weld joint restoration of an in-service generator set according to claim 2, characterized in that, The abutting portion is a rolling member (243), and the adjustment screw (230) abuts against the rolling member (243).
5. The pipe alignment control device before the weld restoration of an in-service generator set according to claim 4, wherein A spacer block (242) is further provided between the adjustment screw (230) and the rolling member (243).
6. The pipe alignment control device before the weld restoration of an in-service generator set according to claim 1, wherein The radial load-bearing bridge (210) is provided with a plurality of threaded through holes matching the adjustment screw (230).
7. The pipeline centering and regulation device before the weld joint restoration of an in-service generating unit according to claim 1, characterized in that, The first base includes a first anchoring nut (320) and an axial load-bearing bridge (310). The first anchoring nut (320) is fixed on the pipe (100). A threaded connection portion (311) is provided below the axial load-bearing bridge (310), and the threaded connection portion (311) is connected in the first anchoring nut (320).
8. The pipeline centering and regulating device before the weld joint restoration of an in-service generating unit according to claim 7, characterized in that, The connecting member (330) is a bolt, and the locking member (340) includes a locking nut (342). The bolt passes through the two axial load-bearing bridges (310) and is locked and fixed by the locking nut (342).
9. The pipe alignment control device before the weld joint restoration of an in-service generator set according to claim 1, wherein The second base includes a second anchoring nut (220) and a mating nut (221). A support screw (211) is provided at the connection between the radial load-bearing bridge (210) and the second base. The support screw (211) is threadedly connected to the second anchoring nut (220), and the mating nut (221) is arranged on the support screw (211). The mating nut (221) is used to lock the support screw (211) and the second anchoring nut (220).
10. The pipeline centering and regulating device before the restoration of the welded joint of an in-service generator set according to claim 1, characterized in that, At least three groups of the radial adjustment assemblies (200) are evenly distributed on the pipe (100), and at least two groups of the axial adjustment assemblies (300) are evenly distributed on the pipe (100).