Online leaking stoppage device for pipeline

Abstract

The utility model relates to the technical field of pipeline maintenance, in particular to an online leaking stoppage device for a pipeline. The utility model aims to provide a pipeline on-line leaking stoppage device which comprises a hydraulic cylinder and a pipe clamping assembly, the hydraulic cylinder comprises a cylinder body and a piston rod, one end of the piston rod is exposed out of the left end of the cylinder body, the pipe clamping assembly comprises a U-shaped clamping plate and two cylindrical pins, an opening of the U-shaped clamping plate is arranged leftwards, and the U-shaped clamping plate comprises a bottom plate and two side plates. The bottom plate is fixedly connected with the left end of the cylinder body, a through hole is formed in the middle of the bottom plate, one end of the piston rod is connected to the through hole in a left-right sliding mode, the two cylindrical pins are clamped between the two side plates in a left-right sliding mode, and the axial directions of the cylindrical pins are perpendicular to the side plates. A positioning pin is detachably fixed between the left ends of the two side plates, and the axial direction of the positioning pin is perpendicular to the side plates. According to the device disclosed by the utility model, the online leaking stoppage of the pipeline is ingeniously realized, and the maintenance efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline maintenance, in particular to an online leak plugging device for pipelines. Background Art

[0002] There are many tubes or water and gas pipes with medium inside the boiler, which are inevitably worn and leaked due to long-term operation. When a pipeline leaks, the leaking area needs to be repaired. Traditional maintenance requires stopping the machine for maintenance, which takes a long time and is expensive. Therefore, there is an urgent need for a device that can realize online pipeline plugging. Summary of the invention

[0003] The utility model aims to provide an online leak-stopping device for a pipeline.

[0004] The utility model is realized by adopting the following technical solutions:

[0005] A pipeline online leak plugging device comprises a hydraulic cylinder and a pipe clamping assembly. The hydraulic cylinder comprises a cylinder body and a piston rod. One end of the piston rod is exposed at the left end of the cylinder body. The pipe clamping assembly comprises a U-shaped clamping plate with its opening facing left and two cylindrical pins. The U-shaped clamping plate comprises a bottom plate and two side plates. The bottom plate is fixedly connected to the left end of the cylinder body. A through hole is opened in the middle of the bottom plate. One end of the piston rod is slidably connected to the through hole left and right. The two cylindrical pins are slidably clamped between the two side plates left and right and their axial directions are perpendicular to the side plates. The cylindrical pin located on the far left can be removed from the side plate. A positioning pin with its axial direction perpendicular to the side plates is detachably fixed between the left ends of the two side plates.

[0006] When in use, first use an online flow measuring instrument to determine the leaking pipeline, and then use the online leak plugging device in the utility model to plug the leak, that is, clamp the two ports of the leaking pipeline flat. The specific operation is as follows: remove the positioning pin, remove the cylindrical pin on the far left, insert the two side plates of the device outside the leaking pipeline, and then install the cylindrical pin and positioning pin on the far left in turn, and finally start the hydraulic cylinder, the piston rod moves to the left, thereby pushing the two cylindrical pins to move left, and then clamping the pipeline between the two cylindrical pins flat, and finally disconnect the pipeline and weld it closed, so as to stop the medium from passing through the pipeline, thereby realizing online leak plugging of the pipeline.

[0007] Furthermore, an external thread is provided on the outer wall of the left end portion of the cylinder body, and a threaded hole is provided on the outer side surface of the base plate that matches the external thread on the outer wall of the left end portion of the cylinder body. The left end portion of the cylinder body is screwed into the threaded hole of the base plate, thereby realizing a fixed connection between the base plate and the left end portion of the cylinder body. This structure facilitates the installation and disassembly of the hydraulic cylinder and the tube clamping assembly.

[0008] Furthermore, the inner walls of the two side panels are provided with guide rails arranged along the left and right directions of their length directions, and the two end surfaces of the two cylindrical pins are provided with sliding grooves compatible with the strip guide rails, so that the two cylindrical pins can slide left and right and be clamped between the two side panels. The structure is simple and easy to implement.

[0009] The beneficial effects produced by the utility model are as follows: the device described in the utility model ingeniously realizes online leak plugging of pipelines, effectively improves maintenance efficiency, saves maintenance time, reduces maintenance costs, and thus improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings herein are incorporated into and constitute a part of the specification, showing embodiments consistent with the present utility model and, together with the description, serving to explain the principles of the present utility model.

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is the left side view of the cylindrical pin.

[0014] In the figure: 1-cylinder body, 2-piston rod, 3-U-shaped clamp, 4-cylindrical pin, 5-locating pin, 6-guide rail, 7-slide groove, 8-pipeline. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0016] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] The specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 and Figure 2 As shown, an online leak plugging device for a pipeline includes a hydraulic cylinder and a tube clamping assembly. The hydraulic cylinder includes a cylinder body 1 and a piston rod 2. One end of the piston rod 2 is exposed at the left end of the cylinder body 1. The tube clamping assembly includes a U-shaped clamping plate 3 with its opening facing left, and two cylindrical pins 4. The U-shaped clamping plate 3 includes a bottom plate and two side plates. The bottom plate is fixedly connected to the left end of the cylinder body 1. A through hole is opened in the middle of the bottom plate. One end of the piston rod 2 is slidably connected to the through hole left and right. The two cylindrical pins 4 are slidably clamped between the two side plates left and right and their axial directions are perpendicular to the side plates. The cylindrical pin 4 located on the far left can be removed from the side plate. A positioning pin 5 with its axial direction perpendicular to the side plates is detachably fixed between the left ends of the two side plates.

[0020] When in use, first use an online flow measuring instrument to determine the leaking pipe 8, and then use the online plugging device in the utility model to plug the leak, that is, clamp the two ports of the leaking pipe 8, and the specific operation is as follows: remove the positioning pin 5, remove the cylindrical pin 4 located on the far left, insert the two side plates of the device outside the leaking pipe 8, and then install the cylindrical pin 4 and positioning pin 5 located on the far left in turn, and finally start the hydraulic cylinder, the piston rod 2 moves to the left, thereby pushing the two cylindrical pins 4 to move to the left, and then clamp the pipe 8 between the two cylindrical pins 4, and then disconnect the pipe 8 and weld it closed, so as to stop the medium in the pipe 8 from passing through, thereby achieving online plugging of the pipe 8.

[0021] In specific implementation, the outer wall of the left end of the cylinder body 1 is provided with an external thread, and the outer side surface of the base plate is provided with a threaded hole that is compatible with the external thread on the outer wall of the left end of the cylinder body 1. The left end of the cylinder body 1 is screwed into the threaded hole of the base plate, thereby realizing a fixed connection between the base plate and the left end of the cylinder body 1. This structure facilitates the installation and disassembly of the hydraulic cylinder and the pipe clamping assembly.

[0022] In specific implementation, the inner walls of the two side panels are provided with guide rails 6 arranged along the left and right directions along their length directions, and the two end surfaces of the two cylindrical pins 4 are provided with sliding grooves 7 adapted to the strip guide rails 6, so that the two cylindrical pins 4 can slide left and right and be clamped between the two side panels. The structure is simple and easy to implement.

[0023] The use of this device to plug the leak in pipeline 8 can save two days of maintenance time, while one day of system shutdown affects profits by 700,000 yuan. Therefore, the use of this device can increase profits by 1.4 million yuan compared to traditional shutdown maintenance.

[0024] The above is only a specific implementation of the utility model, which enables those skilled in the art to understand or implement the utility model. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. An online leak plugging device for a pipeline, characterized in that: The invention comprises a hydraulic cylinder and a pipe clamping assembly. The hydraulic cylinder comprises a cylinder body (1) and a piston rod (2). One end of the piston rod (2) is exposed at the left end of the cylinder body (1). The pipe clamping assembly comprises a U-shaped clamping plate (3) whose opening is arranged to the left, and two cylindrical pins (4). The U-shaped clamping plate (3) comprises a bottom plate and two side plates. The bottom plate is fixedly connected to the left end of the cylinder body (1). A through hole is opened in the middle of the bottom plate. One end of the piston rod (2) is slidably connected to the through hole. The two cylindrical pins (4) are slidably clamped between the two side plates and their axes are arranged perpendicular to the side plates. The cylindrical pin (4) located at the far left can be removed from the side plate. A positioning pin (5) is detachably fixed between the left ends of the two side plates and its axis is arranged perpendicular to the side plates.

2. The online leak plugging device for pipeline according to claim 1, characterized in that: The outer wall of the left end of the cylinder body (1) is provided with an external thread, and the outer side surface of the bottom plate is provided with a threaded hole matched with the external thread on the outer wall of the left end of the cylinder body (1).

3. The online leak plugging device for pipeline according to claim 2, characterized in that: The inner side walls of the two side plates are provided with guide rails (6) arranged along the left-right direction in their length direction, and both end surfaces of the two cylindrical pins (4) are provided with sliding grooves (7) adapted to the strip-shaped guide rails (6).

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