Pipeline flange assembly auxiliary device

Abstract

The utility model discloses a pipeline flange assembly auxiliary device which is characterized by comprising a main body sleeve and a plurality of fixing components, the main body sleeve is cylindrical, and the main body sleeve is arranged in an up-down through manner; a plurality of through holes are annularly formed in the main body sleeve; two groups of mounting holes are formed in the main body sleeve in the circumferential direction, each fixing assembly is correspondingly mounted in one mounting hole to form two groups, and each group of fixing assemblies form an annular supporting surface. Through the application of the pipeline flange assembly auxiliary device, the pipeline and the flange are welded together through the pipeline flange assembly auxiliary device, so that the pipeline flange assembly efficiency can be effectively improved, the assembly precision is ensured, the welding deformation is reduced, the working intensity of an operator is reduced, and the labor input cost is reduced; the safety risk of pipeline and flange assembly work is reduced, and the device is simple in structure, low in manufacturing cost, convenient to operate and wide in application range.

Description

Technical Field

[0001] The utility model relates to the related technical fields of industrial pipelines, equipment installation, etc., and particularly relates to an auxiliary device for pipe flange alignment. Background Art

[0002] A flange is a component used for connecting pipelines to each other. The pipeline and the flange are connected by welding. According to different welding methods, the flange can be divided into butt welding flange and flat welding flange. Before welding the pipeline and the butt welding flange, the alignment work needs to be completed. And to ensure the welding quality, the requirements for alignment are high, and a stable form needs to be maintained for a long time. The existing measures are basically to rely on manual adjustment for alignment. However, for some large-diameter flanges, due to their large weight, it is more inconvenient to align them with the pipeline, it is difficult to ensure the alignment accuracy, which is likely to cause potential welding quality problems, resulting in rework. Moreover, manual alignment takes a long time, has low efficiency, and also has certain safety hazards. Content of the Utility Model

[0003] In view of this, to solve the above problems, the purpose of the utility model is to provide an auxiliary device for pipe flange alignment, which includes:

[0004] A main body sleeve and a plurality of fixing components;

[0005] The main body sleeve is cylindrical and is provided with a through hole from top to bottom;

[0006] The main body sleeve is circumferentially provided with a plurality of through holes;

[0007] The main body sleeve is circumferentially provided with two groups of mounting holes, and each fixing component is correspondingly installed in one of the mounting holes to form two groups. Each group of fixing components forms an annular supporting surface.

[0008] In the above-mentioned auxiliary device for pipe flange alignment, each fixing component includes: a fixing nut and a stud; one end of the stud extends into the mounting hole and rotatably installs the fixing nut.

[0009] In the above-mentioned auxiliary device for pipe flange alignment, the two groups of mounting holes are arranged in parallel.

[0010] In the above-mentioned auxiliary device for pipe flange alignment, the main body sleeve is annularly provided with two groups of through holes, and the two groups of through holes are respectively close to the two ports of the main body sleeve.

[0011] In the above-mentioned auxiliary device for pipe flange alignment, each through hole and each mounting hole are arranged in a staggered manner.

[0012] In the above-mentioned auxiliary device for pipe flange alignment, the through hole is arranged in a rectangular shape.

[0013] The positive effects of the above technical solution compared with the prior art are as follows:

[0014] By applying the present utility model, an auxiliary device for assembling pipe flanges is provided. By using this device to weld pipes and flanges together, the efficiency of assembling pipe flanges can be effectively improved, the accuracy of assembly can be guaranteed, welding deformation can be reduced, the working intensity of operators can be decreased, the labor input cost can be reduced, the safety risk of the work of assembling pipes and flanges can be lowered, and this device has a simple structure, low manufacturing cost, convenient operation, and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of an auxiliary device for assembling pipe flanges of the present utility model.

[0016] Figure 2 It is a schematic diagram of the use state of an auxiliary device for assembling pipe flanges of the present utility model.

[0017] 1. Main body sleeve; 2. Through hole; 3. Mounting hole; 4. Fixed nut; 5. Stud; 6. Flange; 7. Pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be further described below in conjunction with the drawings and specific embodiments, but it is not limited to the present utility model.

[0019] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limited conditions for the implementation of the present utility model. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present utility model can implement.

[0020] As Figures 1 to 2 shown, there is shown an auxiliary device for assembling pipe flanges of a preferred embodiment, which includes: a main body sleeve 1 and a plurality of fixing components.

[0021] The main body sleeve 1 is cylindrical and is provided with a through hole up and down; a plurality of through holes 2 are circumferentially provided on the main body sleeve 1; two groups of mounting holes 3 are circumferentially provided on the main body sleeve 1, and each fixing component is correspondingly installed in a mounting hole 3 to form two groups, and each group of fixing components forms an annular support surface.

[0022] During actual use, the pipe 7 to be paired and the butt welding flange 6 are pre-ground to form a bevel groove to ensure that the bevel groove meets the requirements and has the conditions for the next pairing work; one end of the main body sleeve 1 is placed inside the pipe 7 by grasping the position of the through hole 2 of the main body sleeve 1, and a set of fixing components is adjusted to make the main body sleeve 1 and the pipe 7 form a rigid connection; the butt welding flange 6 to be paired is placed on the other end of the main body sleeve 1, and another set of fixing components is adjusted to make the other end of the main body sleeve 1 and the flange 6 form a rigid connection. After the adjustment is completed, it is verified that the pairing gap meets the requirements, and the pipe 7 and the flange 6 are welded. Through the fixation of this device, the risk of welding deformation can be reduced. After the welding is completed, this device can be removed through the fixing components, and this device can be removed by grasping the position of the through hole 2 of the main body sleeve 1.

[0023] The present utility model further has the following embodiments on the above basis:

[0024] Furthermore, a pipe flange pairing auxiliary device, wherein each fixing component includes: a fixing nut 4 and a stud 5; one end of the stud 5 extends into the mounting hole 3 and is rotatably installed with the fixing nut. Specifically, the pipe valve 7 and the flange 6 are limited by the length of the stud 5 extending out of the mounting hole 3 and fixed by the fixing nut 4. The disassembly and fixing method is simple and fast.

[0025] The inner diameter of the pipe to be paired is D, the outer diameter of this device is d, and the maximum length of the stud 5 is d / 2. Then this device can be applied to the pairing work of pipes and flanges within the range of d < D < 2d. For convenient taking, a device with a small d value can be selected as much as possible.

[0026] Furthermore, a pipe flange pairing auxiliary device, wherein the two mounting holes 3 are arranged in parallel. Specifically, the two fixing components are arranged in parallel.

[0027] Furthermore, a pipe flange pairing auxiliary device, wherein the main body sleeve 1 is annularly provided with two through holes 2, and the two through holes 2 are respectively close to the two ports of the main body sleeve 1. Specifically, the two ends of the main body sleeve 1 can be grasped through the two through holes 2 respectively.

[0028] Furthermore, a pipe flange pairing auxiliary device, wherein each through hole 2 and each mounting hole 3 are arranged in a staggered manner. Specifically, the staggered through holes 2 and mounting holes 3 do not affect each other in use.

[0029] Furthermore, a pipe flange pairing auxiliary device, wherein the through hole 2 is rectangularly arranged. Specifically, a protective pad can be pasted on the inner wall of the through hole 2 so that when the staff grasps the main body sleeve 1 through the through hole 2, the hand will not be cut.

[0030] The above are only the preferred embodiments of the present utility model, and do not thereby limit the implementation manners and protection scope of the present utility model. For those skilled in the art, it should be realized that all the solutions obtained by equivalent replacements and obvious changes made by using the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for assembling pipe flanges, characterized in that, Including: A main body sleeve and a plurality of fixing components; The main body sleeve is cylindrical and is provided with a through hole vertically; A plurality of through holes are circumferentially arranged on the main body sleeve; Two groups of mounting holes are circumferentially arranged on the main body sleeve, and each fixing component is correspondingly mounted in one mounting hole to form two groups. Each group of fixing components forms an annular supporting surface.

2. The pipe flange alignment auxiliary device according to claim 1, wherein Each fixing component includes a fixing nut and a stud; one end of the stud extends into the mounting hole and rotatably mounts the fixing nut.

3. An auxiliary device for pipe flange alignment according to claim 1, characterized in that The two groups of mounting holes are arranged in parallel.

4. The auxiliary device for butt-welding of pipeline flanges according to claim 1, wherein Two groups of through holes are annularly arranged on the main body sleeve, and the two groups of through holes are respectively close to the two ports of the main body sleeve.

5. The auxiliary device for assembling pipeline flanges according to claim 1, wherein, Each through hole and each mounting hole are arranged staggeredly.

6. The auxiliary device for assembling pipeline flanges according to claim 1, wherein, The through hole is rectangular.

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