Splash interceptor for pipeline cleaning

Abstract

The utility model relates to a splash interceptor for pipeline cleaning, and belongs to the technical field of pipeline welding. In the welding process of a long-distance pipeline, a large amount of welding spatter can be caused by a traditional manual welding method, the spatter is left at the bottom of the pipeline, and the follow-up ray nondestructive testing result is interfered. The prior art only focuses on post-event processing and lacks an active protection mechanism. In order to solve the problem, the utility model provides the splash interceptor for cleaning the pipeline, which comprises an interception disc, a fixed disc, a disc-shaped brush, a bracket and a guide block, the interception discs deviate from the circle center position of the fixed disc, are perpendicular to the radial direction of the fixed disc and are symmetrically arranged in the vertically downward radius direction of the fixed disc; the disc-shaped brush is fixed on the periphery of the fixed disc; the guide block is in the shape of a cylinder, the guide block is fixedly connected with one side of the fixing disc through a support, and the guide block keeps coaxiality all the time by making contact with the pipeline. The device is mainly used for intercepting and removing the splash in the welding process of the long-distance pipeline.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline welding, specifically to a spatter trap for pipeline cleaning. Background Technology

[0002] Traditional long-distance pipeline welding uses cellulose electrodes for manual welding, resulting in a lot of welding spatter. When radiographic nondestructive testing is performed on the weld, the spatter remains at the bottom of the pipeline, and the radiograph will show spatter images, significantly increasing the risk of missed or false positives.

[0003] For cleaning welding spatter in pipelines, the main method currently used is a combination of scrapers and flexible cleaning components. For example, the utility model patent "A device for cleaning welding spatter in pipelines, authorization announcement number: CN216325617U, application date November 25, 2021, authorization publication date April 19, 2022" includes a scraper and a first connecting rod. The center of the scraper is fixed to the end of the first connecting rod, and a first flexible cleaning component is connected to the side of the scraper away from the first connecting rod. The scraper can first scrape the spatter inside the pipeline, and then the flexible cleaning component (such as a cloth strip or sponge) is used to clean the spatter from the inner wall of the pipeline.

[0004] However, existing technologies only consider the situation where welding spatter has already been left at the bottom of the pipe and then cleaned up, without considering the interception of spatter during the spattering process. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the technical problem solved by this utility model is that the existing technology only focuses on post-event processing and lacks an active protection mechanism.

[0006] To solve the above problems, the technical solution adopted by this utility model is: a splash trap for pipe cleaning, comprising a rope loop and a connecting rod, one end of which is fixedly connected to the rope loop, and the other end of which is fixedly connected to the center of a fixed disc. The feature is that it includes a trapping disc, a fixed disc, a disc-shaped brush, a bracket, and a guide block; the trapping disc is offset from the center of the fixed disc, is radially perpendicular to the fixed disc, and is symmetrically arranged along the radial direction perpendicularly downwards from the fixed disc; the disc-shaped brush is fixed to the outer periphery of the fixed disc; the guide block is cylindrical in shape, and is fixedly connected to one side of the fixed disc via the bracket, maintaining coaxiality through contact with the pipe.

[0007] The technical principle behind this solution is as follows: the intercepting disc is offset from the center of the fixed disc, perpendicular to its radial direction, and symmetrically arranged along the radial direction perpendicularly downwards from the fixed disc. This allows welding spatter to fall directly into the intercepting disc during welding operations, thus collecting and treating it centrally and preventing it from scattering. The disc-shaped brush, pulled by a connecting rod, creates friction between the brush and the scattered welding slag spatter, effectively cleaning it. The guide block is connected and fixed to the fixed disc via a fixed bracket, providing stability and support, ensuring that the entire device maintains a stable position and posture during welding.

[0008] Furthermore, the retaining disc is detachably connected to the fixing disc via bolts. This facilitates the replacement of retaining discs of different shapes and sizes according to different pipe diameters.

[0009] Furthermore, the fixing plate is cylindrical in shape with eight bolt holes evenly distributed around its circumference. The cylindrical fixing plate facilitates movement within a circular pipe, and the bolt holes facilitate the replacement of the retaining plate and support.

[0010] Furthermore, a disc-shaped brush is fixedly connected to the side of the fixed disk. During the movement of the device, the disc-shaped brush rubs against the welding slag splashes, thus achieving a cleaning effect.

[0011] Furthermore, the disc-shaped brush is detachably connected to the fixed disc by bolts. This facilitates the replacement of disc-shaped brushes of different sizes according to different pipe diameters.

[0012] Furthermore, the guide block is cylindrical with eight bolt holes evenly distributed around its circumference, and its material is elastic rubber. The guide block provides additional stability and support to the device while also serving as a secondary cleaner for welding slag spatter.

[0013] Furthermore, the bracket is made of steel round tube with fixing bolts welded to both ends. The bolts fixing the steel round tube of the bracket match the bolt connection holes reserved in the fixing plate and guide block. The bracket serves to connect the fixing plate and the guide tube, providing stability to the overall device.

[0014] Furthermore, one end of the connecting rod is fixed to the center of one side of the fixed plate. The connecting rod provides traction and orientation for the entire device.

[0015] Furthermore, the rope loop is fixed to the other end of the connecting rod. The rope loop is used to connect a wire rope or a rigid rod with a hook, facilitating the provision of external force for movement of the device.

[0016] Compared with the prior art, the technical solution of this utility model has the following advantages:

[0017] 1. Retention and removal of welding spatter: The combination design of the retention disc and disc brush can effectively retain and remove spatter generated during the welding process.

[0018] 2. Easy to operate and maintain: The device has a simple structure and is easy to use. The interception disc, disc brush and guide block are all connected by detachable bolts, which makes it easy to install, disassemble and replace parts, reducing maintenance costs.

[0019] 3. More stable device: The guide block installed at the tail provides stability and support, ensuring that the entire device can maintain a stable position and posture during the welding process, avoiding a decrease in interception effect due to vibration or movement. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the splash trap for pipeline cleaning according to this utility model.

[0021] Figure 2 This is a side view of the splash trap for pipe cleaning according to the present invention.

[0022] Figure 3 A schematic diagram of a radiographic film showing a pipe weld that was not intercepted using the splash trap of this invention.

[0023] Figure 4 This is a schematic diagram of a radiographic film taken after the spatter interceptor of this invention intercepts the welded pipe. Detailed Implementation

[0024] The technical solutions of the present invention will now be described with reference to the accompanying drawings in the embodiments of the present invention.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Retention disc; 2. Rope loop; 3. Connecting rod; 4. Fixing disc; 5. Disc brush; 6. Support; 7. Guide block; 8. Pipe; 81. Weld bead.

[0027] Implementation, for example Figures 1-2 As shown: A splash trap for pipe cleaning includes a trapping disc 1, a rope loop 2, a connecting rod 3, a fixed disc 4, a disc-shaped brush 5, a bracket 6, and a guide block 7. The trapping disc 1 is offset from the center of the fixed disc 4, is radially perpendicular to the fixed disc 4, and is symmetrically arranged along the radial direction perpendicularly downward from the fixed disc 4. The trapping disc 1 is detachably connected to the fixed disc 4 by bolts. The disc-shaped brush 5 is detachably connected to the fixed disc 4 by bolts and is fixed to the outer periphery of the fixed disc 4 by bolts. The guide block 7 is made of elastic rubber material and is cylindrical in shape. The guide block 7 maintains coaxiality by contacting the pipe 8. The guide block 7 is fixedly connected to one side of the fixed disc 4 by the bracket 6. The center of the other side of the fixed disc 4 is welded to one end of the connecting rod 3, and the rope loop 2 is welded to the other end of the connecting rod 3.

[0028] In actual operation, the device is placed in the pipe 8 to be welded, with the disc brush 5 pressed tightly against the inner surface of the pipe 8. A guide block 7 matching the diameter of the pipe 8 is selected, and a rope buckle 2 is connected via a wire rope. By pulling the wire rope, the position of the device is adjusted so that the intercepting disc 1 overlaps with the weld bead 81 at the midpoint of the longitudinal direction of the pipe 8, and the intercepting disc 1 is always kept at the lowest position during the welding process to maximize the interception of welding spatter. During welding, the spatter generated is intercepted and collected by the intercepting disc 1. After welding is completed, the device is moved by pulling the wire rope. The friction between the disc brush 5 and the welding spatter removes the welding spatter residue adhering to the bottom of the pipe; the friction between the elastic rubber guide block and the welding spatter further cleans the welding spatter residue.

[0029] This embodiment uses a spatter trap to trap spatter during welding, cleans the spatter after welding, and then performs radiographic inspection on the weld seam at the bottom of the pipe. The radiographic film shows... Figure 3 and Figure 4 As shown, Figure 3 Film taken before using a pipe welding spatter interception and removal device. Figure 4 Film taken after using a pipe welding spatter trapping and removal device. (Comparison) Figure 3 and Figure 4 Radiographs taken before and after using a pipe welding spatter interception and removal device show that spatter around the weld is greatly reduced, and the residual spatter has virtually no impact on radiograph evaluation.

[0030] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A splash trap for pipe cleaning, comprising a rope loop and a connecting rod, wherein one end of the connecting rod is fixedly connected to the rope loop, and the other end of the connecting rod is fixedly connected to the center of a fixed disc, characterized in that: It includes a trapping disc, a fixed disc, a disc-shaped brush, a bracket, and a guide block; the trapping disc is offset from the center of the fixed disc, is radially perpendicular to the fixed disc, and is symmetrically arranged along the radial direction of the fixed disc perpendicularly downward; the disc-shaped brush is fixed to the outer periphery of the fixed disc; the guide block is cylindrical in shape, and is fixedly connected to one side of the fixed disc through the bracket, and the guide block maintains coaxiality by contacting the pipeline.

2. The splash trap for pipe cleaning according to claim 1, characterized in that: The interception plate is detachably connected to the fixing plate by bolts.

3. The splash trap for pipe cleaning according to claim 1, characterized in that: The disc-shaped brush is detachably connected to the fixed disc by bolts.

4. The splash trap for pipe cleaning according to claim 1, characterized in that: The guide block is made of elastic rubber.

5. The splash trap for pipe cleaning according to claim 1, characterized in that: The support frame is made of steel round tube with fixing bolts welded to both ends.

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