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Double-leather-cup plugging head for pressure plugging of pipeline

A technology of plugging heads and cups, applied in the direction of pipes/pipe joints/fittings, pipe components, mechanical equipment, etc., can solve the problems of cumbersome procedures, high potential safety hazards, low efficiency, etc., and achieve obvious test results, avoid pollution, The effect of improving safety

Pending Publication Date: 2020-01-24
BEIJING JINSHIWAN PIPELINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a double leather cup sealing head for pipeline pressure sealing, which has solved the problems of cumbersome procedures, low efficiency and great safety hazards in the prior art

Method used

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  • Double-leather-cup plugging head for pressure plugging of pipeline
  • Double-leather-cup plugging head for pressure plugging of pipeline

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Experimental program
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Embodiment Construction

[0013] Such as figure 1 with figure 2 As shown in the figure, a spherical plugging head with pressurized double leather cups for pipelines includes a support plate 1, a steering shaft 2, a steering arm 3, a leather cup front guard 4, a leather cup control oil cylinder 5, an oil cylinder control oil circuit 6, and a plugging Leather cup 7, leak detection ring 8, leather cup rear guard plate 9 and guide wheel 10 form. The upper end of the support plate 1 is provided with a shaft hole connected to the plugging device 18, the lower part of the support plate 1 is connected to the steering arm 3 through the steering shaft 2, and the outer end of the steering arm 3 is provided with a leather cup control oil circuit interface 11 and a leak detection ring. The interface 12, the steering arm 3 is connected to the front cover 4 of the leather cup through screws, and an O-ring seal is arranged between the steering arm 3 and the front cover 4 of the leather cup. The guard plate 4 is con...

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Abstract

The invention discloses a double-leather-cup spherical plugging head for pressure plugging of a pipeline. An outer end of a steering arm is provided with a leather cup control oil path interface and aleakage measuring ring leakage measuring interface, the steering arm is connected with a leather cup front guard plate through screws, a piston rod of a leather cup control oil cylinder is connectedwith the leather cup front guard plate through a nut, the oil cylinder control oil path is connected to the leather cup control oil path interface at the outer end of the steering arm through a hydraulic pipe joint, the leather cup control oil path interface is connected to an oil cylinder control valve outside a plugging connector through the hydraulic pipe joint and a hydraulic pipe, two plugging leather cups are placed on the leather cup front guard plate and are separated from the middle through a leakage measuring ring, the leakage measuring ring leakage measuring interface is connected to a leakage measuring control valve outside the plugging connector through the hydraulic pipe joint and the hydraulic pipe, and the leather cup rear guard plate is connected with the leather cup frontguard plate through the leather cup control oil cylinder. According to the double-leather-cup spherical plugging head, the two plugging leather cups are adopted for sealing, so that the procedures ofthe build of a grease wall or the install of an isolation bag are avoided after break the pipe without fire, and the plugging head has the advantages of being reasonable in design, simple in process,high in efficiency and high in safety performance.

Description

technical field [0001] The invention relates to the technical field of high-pressure sealing of pipelines, in particular to a double leather bowl sealing head for sealing pipelines under pressure. Background technique [0002] During the use of oil and gas pipelines, due to internal or external factors and other reasons, local corrosion, deformation or damage will occur in the pipeline, resulting in pipeline safety hazards. In the prior art, when repairing or replacing the hidden danger section, it is necessary to weld the pipeline seal. Plugging pipe fittings, DN50 balance holes and vent holes (50 balance holes can also be used as vent holes) pipe fittings, install special splint valves, install hole tapping machines to open holes, and install plugging devices to perform plugging operations through the plugging head. All the plugs need to be sealed in the direction of the hidden danger section. The medium in the hidden danger section is isolated from the plugging connector....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/134
CPCF16L55/134
Inventor 张青先李春江马少飞
Owner BEIJING JINSHIWAN PIPELINE TECH CO LTD
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