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Airflow preventing device used for oil-gas pipeline welding

A technology for oil and gas pipelines and inflatable devices, applied in auxiliary devices, welding equipment, auxiliary welding equipment, etc., can solve problems such as outflow, and achieve the effect of no need to stop production for maintenance, realize pressure operation, and realize remote control or wireless control.

Inactive Publication Date: 2021-01-15
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the above-mentioned problem that the airflow inside the pipeline flows out from the weld, it is necessary to design an anti-airflow device for pipeline welding

Method used

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  • Airflow preventing device used for oil-gas pipeline welding
  • Airflow preventing device used for oil-gas pipeline welding

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Embodiment Construction

[0013] Such as figure 1 and figure 2 , an anti-airflow device for oil and gas pipeline welding, mainly composed of an inflator 1, a cylinder inflation line 2, a cylinder 3, a sliding support shaft 4, an airbag inflation line 5, a universal joint 6, a fixed hinge seat 7, and a sliding hinge seat 8. Composed of multi-way joint 9, centering wheel 10, box body 11, air bag 12, ventilation hose 13, air bag release valve 14, load-bearing wheels 15, fixed support shaft 16, traction hinge 17 and tractor 18, it is characterized in that : the structure of the anti-airflow device is symmetrical about the universal joint 6; the inflation device 1 is installed on the tractor 18, and the cylinder 3 is inflated through the cylinder inflation pipeline 2, and the airbag 12 is inflated through the airbag inflation pipeline 5; the said Cylinder 3, sliding support shaft 4, fixed hinge seat 7, sliding hinge seat 8, centering wheel 10 and fixed support shaft 16 are all installed on the casing 11; ...

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Abstract

The invention relates to an airflow preventing device used for oil-gas pipeline welding. The airflow preventing device is mainly composed of an inflating device, an air cylinder inflating pipeline, anair cylinder, a sliding supporting shaft, an air bag inflating pipeline, a universal joint, a fixed hinged support, a sliding hinged support, a multi-way joint, a centering wheel, a box body, an airbag, a ventilating hose, an air bag air escape valve, a load-bearing wheel, a fixed supporting shaft, a traction hinge and a tractor, the structure of the airflow preventing device is symmetrical about the universal joint, the inflating device is installed on the tractor and inflates the air cylinder through the air cylinder inflating pipeline and inflates the air bag through the air bag inflatingpipeline, the air cylinder, the sliding supporting shaft, the fixed hinged support, the sliding hinged support, the centering wheel and the fixed supporting shaft are all installed on the box body, the sliding hinged support slides under the action of the air cylinder through the sliding groove in the box body, so that the fixed supporting shaft is driven to be opened, and the centering wheel acts on the pipelines to achieve the centering effect. The airflow preventing device used for oil-gas pipeline welding can be used for realizing under-pressure maintenance of the in-service pipelines with cracks and other problems which occur.

Description

technical field [0001] The invention relates to a pipeline device, in particular to an airflow prevention device used for welding oil and gas pipelines, and belongs to the field of mechanical engineering or petroleum and natural gas engineering. Background technique [0002] In the process of national economic development, the oil and gas industry occupies a pivotal position. For the oil and gas industry, oil and gas pipelines are an important bridge for oil and gas development and an important link for oil and gas transportation. Welding is an important link in the operation of oil and gas pipelines. The quality of the welding process is directly related to the construction quality of the entire oil and gas pipeline project and affects the safe operation of the pipeline. [0003] In the process of oil and gas transportation, there are more and more problems such as rupture and leakage of pipelines under the influence of multiple factors, which requires maintenance and emer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/128B23K37/00B23K101/06
CPCF16L55/128B23K37/00B23K2101/06
Inventor 汤历平姚红祝效华
Owner SOUTHWEST PETROLEUM UNIV
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