Steam pipeline welded junction centering device

Abstract

The utility model discloses a steam pipeline welded junction centering device which comprises two hoops, the two hoops are located on the same axis and connected through a plurality of connecting pieces, each hoop is formed by combining an upper half-ring-shaped clamping strip and a lower half-ring-shaped clamping strip, and the upper half-ring-shaped clamping strip and the lower half-ring-shaped clamping strip are symmetrical. The upper semi-annular clamping strip and the lower semi-annular clamping strip are connected through a pin shaft, a fixing bolt is arranged on the connecting piece, and a fixing end is arranged on the fixing bolt. The fixing bolt can be screwed in or screwed out on the connecting piece, the fixing bolt is screwed in to abut against the pipeline after the steam pipeline is fixedly hoisted in place, it is guaranteed that the axes of the pipelines to be welded are consistent, and the problem that the axes of the pipelines to be welded are not uniform in the installation process of the steam pipeline can be effectively solved; the upper semi-annular clamping strip and the lower semi-annular clamping strip can be connected through the pin shaft, installation and use are easy, stability is good, and the installation quality and later operation safety of the steam pipeline are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline installation, and particularly relates to a steam pipeline weld alignment device. Background Technique

[0002] In modern industrial production, the steam pipeline system is an indispensable part of many factories and equipment, used to transmit steam to provide heat energy or power. The welding quality of the steam pipeline directly affects the safety and efficiency of the entire system. However, in actual operation, due to the complexity of pipeline materials, diameters, wall thicknesses, and construction environments, it is inevitable that the alignment of the steam pipeline is inaccurate and the axes are inconsistent during installation. Inaccurate alignment will not only cause welding defects such as edge mismatch and lack of fusion, but may also lead to stress concentration, reduce the service life of the pipeline, and even cause safety accidents. How to achieve the alignment of the pipeline weld and eliminate welding hidden dangers has become a technical problem. For this reason, we have proposed a steam pipeline weld alignment device. Content of the Utility Model

[0003] The purpose of the utility model is to provide a steam pipeline weld alignment device, which has the advantage of being able to accurately align the pipeline weld, and the clamp is detachable, which is convenient for transportation and storage, and solves the problems in the prior art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A steam pipeline weld alignment device includes a clamp. There are two clamps in total and they are located on the same axis. The two clamps are connected by a plurality of connecting pieces. Each clamp is composed of a symmetric upper semi-circular clamping strip and a lower semi-circular clamping strip. The upper semi-circular clamping strip and the lower semi-circular clamping strip are connected by a pin shaft. A fixing bolt is arranged on the connecting piece, and a fixing end is arranged on the fixing bolt; a plug-in piece is fixed at the end of the lower semi-circular clamping strip, a groove for the end of the upper semi-circular clamping strip to penetrate into is arranged at the top of the plug-in piece, and through holes for the pin shaft to penetrate through are arranged on both sides of the groove and at the end of the upper semi-circular clamping strip.

[0006] Preferably, the upper semi-circular clamping strips and the lower semi-circular clamping strips are each fixedly connected by three connecting pieces, and the connecting pieces are arranged at equal distances.

[0007] Preferably, two fixing bolts are symmetrically arranged on each connecting piece, and the fixing bolts penetrate through the connecting piece and are in threaded cooperation with the connecting piece.

[0008] Preferably, the fixing end is arranged at one end of the fixing bolt facing the inside of the clamp, and the contact surface between the fixing end and the pipeline is a smooth surface.

[0009] Preferably, the intersection point of the axes of the fixing bolts is located on the axis of the clamp.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model is provided with fixing bolts which can be screwed in or out on the connecting piece. After being fixed and hoisted in place, the fixing bolts are screwed in to hold the pipe, so as to ensure that the axis of the pipes to be welded is consistent, which can effectively solve the problem of different axis of the pipes to be welded during the installation of the steam pipe.

[0012] 2. The utility model can connect the upper semi-annular clamping strip and the lower semi-annular clamping strip through a pin shaft, is simple to install and use, and has good stability, thereby ensuring the installation quality of the steam pipeline and the safety of subsequent operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the axonometric drawing of the overall structure of the utility model;

[0014] Figure 2 It is the overall structural plan of the utility model;

[0015] In the figure: 1, clamp; 11, upper semi-annular clamping strip; 12, lower semi-annular clamping strip; 2, connecting piece; 3, fixing bolt; 4, fixing end; 5, pin shaft; 6, plug-in piece; 61, groove; 62, through hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In order to solve the problem of welding defects caused by inaccurate pipe alignment in the prior art, the following technical solution is provided. Figure 1-2 ;

[0018] A steam pipe weld centering device includes a clamp 1, two clamps 1 are provided and located on the same axis, the two clamps 1 are connected by a plurality of connectors 2, each clamp 1 is composed of a symmetrical upper semi-annular clamping strip 11 and a lower semi-annular clamping strip 12, the upper semi-annular clamping strip 11 and the lower semi-annular clamping strip 12 are connected by a pin 5, a fixing bolt 3 is provided on the connector 2, and a fixing end 4 is provided on the fixing bolt 3.

[0019] The upper semi-annular clips 11 and the lower semi-annular clips 12 are fixedly connected by three connecting members 2, and the connecting members 2 are arranged equidistantly to ensure the connection stability between the upper semi-annular clips 11 and the lower semi-annular clips 12, thereby ensuring the stability of the pipeline when it is fixed.

[0020] The end of the lower semi-annular clip strip 12 is fixed with a plug-in connector 6, and the top of the plug-in connector 6 is provided with a groove 61 for the end of the upper semi-annular clip strip 11 to penetrate, and both sides of the groove 61 and the end of the upper semi-annular clip strip 11 are provided with through holes 62 for the pin 5 to penetrate. When in use, the end of the upper semi-annular clip strip 11 is inserted into the groove 61, and several through holes 62 are on the same axis, and then the pin 5 is inserted into the through hole 62 and fixed, so that the upper semi-annular clip strip 11 and the lower semi-annular clip strip 12 are connected; the pin 5 can be freely pulled out during non-use periods, and then the upper semi-annular clip strip 11 and the lower semi-annular clip strip 12 are separated, which is convenient for storage or transportation.

[0021] Two fixing bolts 3 are symmetrically arranged on each connector 2. The fixing bolts 3 penetrate the connector 2 and are threadedly matched with the connector 2. The intersection of the axes of the fixing bolts 3 is located on the axis of the clamp 1. The fixing bolts 3 can be screwed in or out of the connector 2. After the connector 2 is fixed and hoisted in place, the fixing bolts 3 are screwed in to support the pipe, ensuring that the axis of the welded pipe is consistent.

[0022] The fixed end 4 is arranged at one end of the fixing bolt 3 facing the inside of the clamp 1, and the contact surface between the fixed end 4 and the pipeline is a smooth surface, so as to ensure that the pipeline is not damaged when the pipeline is fixed.

[0023] Working principle: When in use, the end of the upper semi-annular clip 11 is inserted into the groove 61, and the several through holes 62 are on the same axis. Then the pin 5 is inserted into the through hole 62 and fixed, so as to connect the upper semi-annular clip 11 and the lower semi-annular clip 12. Then the pipeline is inserted, and the fixing bolt 3 is screwed in so that the end face of the fixed end 4 is against the pipeline, and the fixing bolt 3 is fine-tuned to center the pipeline weld.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model.

Claims

1. A steam pipeline weld alignment device, including a clamp (1), characterized in that, There are two clamps (1) in total and they are located on the same axis. The two clamps (1) are connected by a plurality of connecting pieces (2). Each clamp (1) is composed of a symmetric upper semi-circular clamping strip (11) and a lower semi-circular clamping strip (12). The upper semi-circular clamping strip (11) and the lower semi-circular clamping strip (12) are connected by a pin shaft (5). A fixing bolt (3) is arranged on the connecting piece (2), and a fixing end (4) is arranged on the fixing bolt (3); A plug-in piece (6) is fixed at the end of the lower semi-circular clamping strip (12). A groove (61) for the end of the upper semi-circular clamping strip (11) to penetrate into is arranged at the top of the plug-in piece (6). Through holes (62) for the pin shaft (5) to penetrate through are arranged on both sides of the groove (61) and at the end of the upper semi-circular clamping strip (11).

2. The steam pipeline weld alignment device according to claim 1, wherein, The upper semi-circular clamping strips (11) and the lower semi-circular clamping strips (12) are fixedly connected by three connecting pieces (2) respectively, and the connecting pieces (2) are arranged at equal intervals.

3. The steam pipeline weld alignment device according to claim 2, characterized in that, Two fixing bolts (3) are symmetrically arranged on each connecting piece (2), and the fixing bolts (3) penetrate through the connecting piece (2) and are in threaded cooperation with the connecting piece (2).

4. A steam pipeline weld alignment device according to claim 3, characterized in that, The fixing end (4) is arranged at one end of the fixing bolt (3) facing the inside of the clamp (1), and the contact surface of the fixing end (4) with the pipeline is a smooth surface.

5. The steam pipeline weld alignment device according to claim 4, characterized in that, The intersection point of the axes of the fixing bolts (3) is located on the axis of the clamp (1).

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