Pipeline opening aligning tool and pipeline opening aligning method

Abstract

The invention provides a pipeline aligning tool and a pipeline aligning method. The pipeline aligning tool comprises an elbow clamping block, two connecting plates and a straight pipe clamping block. One end of each connecting plate is connected with an elbow clamping block, and the other end of each connecting plate is connected with a straight pipe clamping block. And pipe elbows are placed in the elbow clamping blocks. And a straight pipe section is placed in the straight pipe clamping block. When the pipeline opening aligning tool works, accurate opening aligning of a pipe elbow and a straight pipe section is achieved by rotating the straight pipe clamping block and the two connecting plates. By designing the special pipeline opening aligning tool, reliable opening aligning of the small branch pipe elbow and the straight pipe section on site is achieved, the opening aligning quality before welding is guaranteed, and the welding quality is improved.

Description

Technical Field

[0001] The present application belongs to the field of welding technology, and specifically relates to a pipeline butt joint tool and a pipeline butt joint method. Background Art

[0002] In the fields of power, shipbuilding, petrochemicals, etc., various small branch pipes are installed on the main pipe to play the role of drainage, sampling or monitoring. Due to the space on site, the branch pipes are generally curved pipes. During the installation on the project site or in-service maintenance, the welding of elbows and straight pipes will be involved, such as Figure 1 In the welding of elbows and straight pipes, especially in automated welding, high quality requirements are placed on the joints, including misalignment and straightness, which directly affect the welding quality and are important pre-welding procedures.

[0003] The existing small branch pipe elbow and straight pipe section are usually connected by hand, visually inspected, and then fixed by spot welding using a manual welder. However, this hand-held method has many defects, such as 1. It depends entirely on personal experience, and the quality of connection is difficult to guarantee, resulting in multiple welding repairs; 2. The small branch pipe itself has a small diameter and a small space, which makes connection difficult and increases the construction period; 3. There is a high risk of electric shock when doing it by hand. Summary of the invention

[0004] In view of this, the embodiments of the present application are committed to providing a pipe docking tool and a pipe docking method. By designing a special pipe docking tool, reliable docking of small branch pipe elbows and straight pipe sections on site is achieved, ensuring the docking quality before welding and improving the welding quality.

[0005] The first aspect of the present application provides a pipe docking tool, which includes an elbow clamp block, two connecting plates and a straight pipe clamp block. One end of each connecting plate is connected to the elbow clamp block, and the other end of the connecting plate is connected to the straight pipe clamp block. The elbow clamp block is used to place the pipe elbow. The straight pipe clamp block is used to place the straight pipe section. When the pipe docking tool is working, the straight pipe clamp block and the two connecting plates are rotated to achieve accurate docking of the pipe elbow and the straight pipe section.

[0006] In a specific embodiment of the present application, the pipe docking tooling also includes a plurality of elbow top screws, a plurality of connecting bolts, a plurality of positioning plates and a plurality of positioning plate bolts. The elbow clamp block is a serialized inner semicircular structure. Two elbow top screw holes for installing elbow top screws are provided on each side of the elbow clamp block, and the elbow top screws are used to adjust the position of the elbow; a connecting bolt hole for installing connecting bolts is provided on each side of the elbow clamp block, and two positioning plate mounting holes for installing positioning plates are processed on the upper inclined surface of the elbow clamp block. When the pipe docking tooling is working, the positioning plate and the two positioning plate bolts realize the positioning of the lower pipe mouth of the elbow, and then the two elbow top screws are installed on each side of the elbow clamp block to complete the fixation of the elbow clamp block and the elbow. Subsequently, the positioning plate and the positioning plate bolts are removed.

[0007] In a specific embodiment of the present application, the pipe docking tooling also includes a straight pipe top screw, a pressure block bolt and a pressure block. The straight pipe clamp block is a serialized inner semicircular structure. There are 4 pressure block bolt holes on the top of the straight pipe clamp block, and the straight pipe section is fixed by the pressure block; there is a straight pipe top screw hole on each side of the straight pipe clamp block, which is used to adjust the position of the straight pipe section; there are 2 connection holes on each side of the front end of the straight pipe clamp block, which are connected and fixed to the elbow clamp block through the connecting plate.

[0008] In a specific embodiment of the present application, the connecting plate is an L-shaped structure, and two long holes are provided on the connecting plate, one of the two long holes is fixedly connected to the elbow clamp block to a first preset angle by a connecting bolt, and the other of the two long holes is connected to the straight pipe clamp block to a second preset angle by a connecting bolt.

[0009] The second aspect of the present application provides a pipeline docking method, which includes: installing a pipe elbow on an elbow clamp and fixing the elbow clamp on the elbow; installing a straight pipe section on the straight pipe clamp; rotating the straight pipe clamp and two connecting plates to achieve accurate docking of the pipe elbow and the straight pipe section; spot welding the pipe mouth to be welded, and spot welding and fixing the elbow and the straight pipe section at two positions; removing the pipeline docking tooling; spot welding the pipe mouth to be welded, and spot welding and fixing the elbow and the straight pipe section at another position, finally achieving three-point fixation of the pipe mouth to be welded; welding operation.

[0010] In a specific embodiment of the present application, after the straight pipe clamp and the two connecting plates are rotated to achieve accurate alignment of the pipe elbow and the straight pipe section, the pipe alignment method further includes: locking the clamp bolts and the connecting bolts.

[0011] The beneficial effects of the technical solution of the present application are: the connection and fixation of the elbow clamp block and the straight pipe clamp block are achieved through the connecting plate, the elbow is placed by the elbow clamp block, and the straight pipe section is placed by the straight pipe clamp block, and the accurate alignment of the pipe bend and the straight pipe section is achieved by rotating the straight pipe clamp block and the two connecting plates, thereby ensuring the alignment quality before welding, improving the welding quality, and also shortening the construction period and reducing the risk of electric shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Shown is a schematic diagram of on-site installation and welding of small branch pipes.

[0013] Figure 2 Shown is a structural schematic diagram of a pipeline docking tooling provided in one embodiment of the present application.

[0014] Figure 3 Shown is a three-dimensional diagram of a pipeline docking tooling after installation provided by an embodiment of the present application.

[0015] Figure 4 Shown is a schematic structural diagram of an elbow clamp in a pipe docking tooling provided in one embodiment of the present application.

[0016] Figure 5 Shown is a schematic structural diagram of a connecting plate in a pipe docking tooling provided in one embodiment of the present application.

[0017] Figure 6 Shown is a schematic structural diagram of a straight pipe clamp block in a pipe docking tooling provided in one embodiment of the present application.

[0018] Figure 7 The figure is a flow chart of a pipeline connection method provided in one embodiment of the present application.

[0019] Numbers in the figure: 1-mother pipe; 2-on-site straight pipe section; 3-elbow; 4-straight pipe to be welded; 5-pipe mouth to be welded; 6-elbow clamp; 7-elbow top screw; 8-connecting bolt; 9-connecting plate; 10-straight pipe top screw; 11-positioning plate; 12-positioning plate bolt; 13-pressing block bolt; 14-straight pipe clamp; 15-pressing block; 16-pipe elbow; 17-weld to be welded; 18-straight pipe section; 19-elbow top screw hole; 20-connecting bolt hole; 21-positioning plate mounting hole; 22-connecting bolt hole; 23-straight pipe top screw hole; 24-pressing block bolt hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] At least one embodiment of the present application provides a pipe docking tool, which is mainly used for reliable installation of a small branch pipe elbow and a straight pipe section. Figure 2 and Figure 3 The pipe docking tooling includes an elbow clamp block 6, two connecting plates 9 and a straight pipe clamp block 14. One end of each connecting plate 9 is connected to the elbow clamp block 6, and the other end of the connecting plate 9 is connected to the straight pipe clamp block 14. The elbow clamp block 6 is used to place the pipe elbow 16. The straight pipe clamp block 14 is used to place the straight pipe section 18. When the pipe docking tooling is working, the straight pipe clamp block 14 and the two connecting plates 9 are rotated to achieve accurate docking of the pipe elbow 16 and the straight pipe section 18.

[0022] According to the technical solution provided in the embodiment of the present application, the connection and fixation of the elbow clamp block 6 and the straight pipe clamp block 14 are achieved through the connecting plate 9, the elbow clamp block 6 is used to place the pipe elbow 16, and the straight pipe section 18 is placed using the straight pipe clamp block 14. By rotating the straight pipe clamp block 14 and the two connecting plates 9, the pipe elbow 16 and the straight pipe section 18 are accurately aligned, which ensures the alignment quality before welding, improves the welding quality, and also reduces the construction period and reduces the risk of electric shock.

[0023] In the pipeline matching tool provided in at least one embodiment of the present application, reference is made to Figure 2 and Figure 4 , the pipe docking tooling also includes a plurality of elbow top screws 7, a plurality of connecting bolts 8, a plurality of positioning plates 11 and a plurality of positioning plate bolts 12. The elbow clamp block 6 is a serialized inner semicircular structure. Two elbow top screw holes 19 for installing the elbow top screws 7 are respectively provided on both sides of the elbow clamp block 6, and the elbow top screws 7 are used to adjust the position of the elbow 3; a connecting bolt hole 20 for installing the connecting bolts 8 is respectively provided on both sides of the elbow clamp block 6, and two positioning plate mounting holes 21 for installing the positioning plate 11 are processed on the upper inclined surface of the elbow clamp block 6. When the pipe docking tooling is working, the positioning plate 11 and the two positioning plate bolts 12 realize the positioning of the lower pipe mouth of the elbow 3, and then the two elbow top screws 7 are installed on both sides of the elbow clamp block 6 to complete the fixation of the elbow clamp block 6 and the elbow 3. Subsequently, the positioning plate 11 and the positioning plate bolts 12 are removed. Thus, by setting the elbow clamp block 6 as a serialized inner semicircular structure, the elbow clamp block 6 can be processed with different semicircular holes according to different pipe specifications, thereby improving the applicability of the pipe docking tool. In addition, the pipe docking tool has a simple structure, adjustable position and angle, and convenient operation. The elbow and the straight pipe can be accurately docked only by bolts and top screws, which not only shortens the construction period, but also reduces the safety risks of traditional docking.

[0024] In at least one embodiment of the present application, the pipe joint tooling includes a straight pipe top screw 10, a pressing block bolt 13 and a pressing block 15. Figure 6 , the straight pipe clamp block 14 is a serialized inner semicircular structure. There are 4 clamp bolt holes 24 processed on the top of the straight pipe clamp block 14, and the straight pipe section 18 is fixed by the clamp 15; there is a straight pipe top screw hole 23 on each side of the straight pipe clamp block 14, which is used to adjust the position of the straight pipe section 18; there are 2 connecting holes processed on both sides of the front end of the straight pipe clamp block 14, and the connection and fixation with the elbow clamp block 6 are achieved through the connecting plate 9. In this way, by setting the straight pipe clamp block 14 as a serialized inner semicircular structure, different semicircular holes can be processed according to different pipeline specifications. When the pipeline docking tooling is working, the pipe elbow 16 and the straight pipe section 18 are accurately docked by rotating the straight pipe clamp block 14 and the two connecting plates 9 and the two straight pipe top screws 10. Finally, the clamp bolt 13 and the connecting bolt 8 are locked.

[0025] In the pipeline matching tool provided in at least one embodiment of the present application, reference is made to Figure 5 The connecting plate 9 is an L-shaped structure, and two long holes are provided on the connecting plate 9. One of the two long holes is fixedly connected to the elbow clamp block 6 to a first preset angle by a connecting bolt 8. The other of the two long holes is connected to the straight pipe clamp block 14 to a second preset angle by a connecting bolt 8. In this way, through the structural design of the connecting plate, the elbow clamp block 6 and the straight pipe clamp block 14 are mechanically fixed + angle-adjustable locking structure, which realizes the reliable docking of the small branch pipe elbow and the straight pipe section on site, ensures the docking quality before welding, and improves the welding quality.

[0026] At least one embodiment of the present application provides a pipeline docking method, referring to Figure 7 , the pipeline docking method includes the following steps.

[0027] S1: Install the pipe elbow 16 on the elbow clamp 6, and fix the elbow clamp 6 on the elbow 3.

[0028] For example, select appropriate elbow clamps 6 and straight pipe clamps 14, and pre-install and connect the pipeline matching tooling, with all bolts and top screws in a loosened state; use the positioning plate 11, positioning plate bolts 12 and elbow top screws 7 to complete the positioning and fixation of the elbow clamp 6 on the elbow 3, and remove the positioning plate 11.

[0029] S2: Install the straight pipe section 18 on the straight pipe clamp block 14.

[0030] S3: The straight pipe clamp block 14 and the two connecting plates 9 are rotated to achieve accurate alignment of the pipe elbow 16 and the straight pipe section 18 .

[0031] In some embodiments, S31 is further included after S3.

[0032] S31: Tighten the pressure block bolt 13 and the connecting bolt 8.

[0033] S4: Spot welding is performed on the pipe opening 5 to be welded, and the elbow 3 and the straight pipe section 18 are spot welded and fixed at two positions.

[0034] S5: Remove the pipeline matching tooling.

[0035] S6: Spot welding is performed on the pipe opening 5 to be welded, and the elbow 3 and the straight pipe section 18 are spot welded and fixed at another position, so as to finally achieve three-point fixation of the pipe opening 5 to be welded.

[0036] S7: Welding operation.

[0037] It should be noted that the pipe docking method is implemented using the pipe docking tooling in any of the above embodiments of the present application, includes corresponding technical features, and can achieve corresponding technical effects, which will not be repeated here.

[0038] It should also be noted that the combination of the various technical features in the embodiments of the present application is not limited to the combination described in the embodiments of the present application or the combination described in the specific embodiments, and all technical features described in the present application can be freely combined or combined in any way unless there is a contradiction between them.

[0039] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "comprises" and "includes" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0040] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pipe docking tool, characterized in that: Includes elbow clamp, 2 connecting plates and straight pipe clamp, Among them, one end of each connecting plate is connected to the elbow clamp block, and the other end of the connecting plate is connected to the straight pipe clamp block, the elbow clamp block is used to place the pipe elbow, and the straight pipe clamp block is used to place the straight pipe section; When the pipeline docking tooling is working, the straight pipe clamp block and the two connecting plates are rotated to achieve accurate docking of the pipe elbow and the straight pipe section.

2. The pipe docking tooling according to claim 1, characterized in that: It also includes a plurality of elbow screws, a plurality of connecting bolts, a plurality of positioning plates and a plurality of positioning plate bolts. Wherein, the elbow clamp block is a serialized inner semicircular structure, and two elbow top screw holes for installing elbow top screws are respectively provided on both sides of the elbow clamp block, and the elbow top screws are used to adjust the position of the elbow; a connecting bolt hole for installing a connecting bolt is respectively provided on both sides of the elbow clamp block, and two positioning plate mounting holes for installing a positioning plate are processed on the upper inclined surface of the elbow clamp block; When the pipe docking tooling is working, the positioning plate and the two positioning plate bolts realize the positioning of the lower pipe mouth of the elbow, and then the two elbow top screws are installed on both sides of the elbow clamp block to complete the fixation of the elbow clamp block and the elbow. Subsequently, the positioning plate and the positioning plate bolts are removed.

3. The pipe docking tooling according to claim 1, characterized in that: It also includes straight pipe jack screws, clamp bolts and clamps. Among them, the straight pipe clamp block is a serialized inner semicircular structure, and 4 clamp bolt holes are processed on the top of the straight pipe clamp block, and the straight pipe section is fixed by the clamp block; there is a straight pipe top screw hole on each side of the straight pipe clamp block, which is used to adjust the position of the straight pipe section; two connecting holes are processed on both sides of the front end of the straight pipe clamp block, and the connection and fixation with the elbow clamp block are achieved through the connecting plate.

4. The pipe matching tool according to any one of claims 1 to 3, characterized in that: The connecting plate is an L-shaped structure, and two long holes are provided on the connecting plate. One of the two long holes is fixedly connected to the elbow clamp to a first preset angle by a connecting bolt, and the other long hole is connected to the straight pipe clamp to a second preset angle by a connecting bolt.

5. A pipeline docking method, characterized in that: include: Install the pipe elbow on the elbow clamp and fix the elbow clamp on the elbow; Install the straight pipe section on the straight pipe clamp; By rotating the straight pipe clamp and the two connecting plates, the pipe elbow and the straight pipe section can be accurately matched; Spot weld the pipe opening to be welded, and spot weld the elbow and straight pipe section at two locations; Remove the pipeline matching tooling; Spot weld the pipe mouth to be welded, and spot weld the elbow and the straight pipe section at another position to fix them, so as to finally achieve three-point fixation of the pipe mouth to be welded; Welding operation.

6. The pipeline connection method according to claim 5, characterized in that: After the straight pipe clamp block and the two connecting plates are rotated to achieve accurate alignment of the pipe elbow and the straight pipe section, the method further includes: Tighten the clamp bolts and connecting bolts.

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