Large-caliber pipeline local leaking stoppage device and method

A technology for large-diameter pipelines and plugging devices, which is applied in the direction of pipe elements, pipes/pipe joints/fittings, mechanical equipment, etc., and can solve the problems of unstable construction quality, high processing cost, and large material occupation.

Pending Publication Date: 2021-01-26
天津斯林力克密封科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method has problems such as large material occupation, high processing c...

Method used

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  • Large-caliber pipeline local leaking stoppage device and method
  • Large-caliber pipeline local leaking stoppage device and method
  • Large-caliber pipeline local leaking stoppage device and method

Examples

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Effect test

Embodiment 1

[0032] The invention relates to a local leakage plugging device for large-diameter pipelines, comprising: a U-shaped clamp 1, a crossbeam 2 and a plugging device 3. The two sides of the plugging device 3 are provided with crossbeams 2, and the beam 2 cooperates with the U-shaped clamp 1. It is set on the pipeline, and the sealing device 3 is set at the position where the leakage occurs on the pipeline. This setting solves the problems of large material occupation, high processing cost, and poor operability. The structure achieves the effect of saving material and processing costs and simple operation.

[0033] The crossbeam 2 and the plugging device 3 are welded and fixed, and the crossbeam 2 is provided with a bolt hole 21, and the crossbeam 2 is installed on the opening end of the U-shaped card 1 through the bolt hole 21, so that the problem of unstable construction quality is solved by setting the crossbeam. 2. The bolt hole is set on the opening end of the U-shaped card an...

Embodiment 2

[0039] A method for local leakage plugging of large-diameter pipelines, comprising the steps of:

[0040] S1: On-site measurement of the relevant dimensions of the leakage point, and the production of suitable sealing devices and fixtures by measuring the relevant dimensions of the leakage point in advance;

[0041] S2: According to the structure in the figure, the sealing device and fixture are processed and manufactured, and the waste of materials and sealing glue is avoided by processing and manufacturing the device and fixture with appropriate size, and the sealing effect is improved;

[0042] S3: Set the U-shaped clamp 1 at the leaking place of the pipeline. The curved part of the U-shaped clamp 1 completely fits the outer wall of the pipeline, and the open end of the U-shaped clamp 1 is two bolts. This setting achieves a stable clamping effect;

[0043] S4: Place the top pressure thin plate 33 at the leakage point of the pipeline. The top pressure top pressure thin plate...

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PUM

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Abstract

The invention relates to a large-caliber pipeline local leaking stoppage device and method, and belongs to the field of pipeline leaking stoppage of petrochemical engineering, electric power, coal gassupply, heat supply and the like. Cross beams are arranged on the two sides of a plugging device, the cross beams and a U-shaped clamp are arranged on a pipeline in a cooperating and sleeving manner,and the plugging device is arranged at the position where leakage occurs on the pipeline. According to the large-caliber pipeline local leaking stoppage device and method, the simple structure is adopted, material occupation is reduced, the machining cost is reduced, a short-cylinder cavity is adopted, the glue injection consumption is reduced, plugging operation is easy, the plugging strength ishigh, and the construction quality is stable.

Description

technical field [0001] The invention relates to the field of leak plugging of pipelines in petrochemical industry, electric power, gas supply, heat supply, etc., in particular to a local leak plugging device and method for large-diameter pipelines. Background technique [0002] In petrochemical, electric power, gas supply, heating and other continuous production industries, during production and operation, due to corrosion and aging of pipelines (especially medium and low pressure pipelines), there will be perforation and leakage. Leakage, the leak hole will become bigger and bigger, especially when the pressure in the pipeline is high, the pipe may even burst. In some cases where it is inconvenient to shut down or isolate the pipeline, it is necessary to quickly plug the pipeline. In the traditional industry, the plugging of large-diameter pipelines generally adopts integral pipe clamps and local top-pressure injection methods. The traditional method has problems such as l...

Claims

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Application Information

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IPC IPC(8): F16L55/172F16L55/18
CPCF16L55/172F16L55/18
Inventor 刘建民翟寰茹刘平正
Owner 天津斯林力克密封科技有限公司
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