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Pipeline plug feeding mechanism

A feeding mechanism and plugging head technology, applied in the direction of pipes/pipe joints/fittings, pipe components, mechanical equipment, etc., can solve the failure of plugging, affect the smooth progress of pipeline maintenance and repair operations, and damage the sealing rubber ring of the plugging head. and other problems, to achieve the effect of accurate plugging operation, improving the success rate of plugging and preventing damage

Pending Publication Date: 2018-09-14
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Description
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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: using the hydraulic cylinder as the feeding mechanism of the pipe plugging head, relying on the guide wheel to passively turn the plugging head, which will cause The sealing rubber ring is damaged, which leads to the failure of sealing, which affects the smooth progress of pipeline maintenance and repair operations

Method used

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Embodiment Construction

[0049] In order to make the technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Unless otherwise defined, all technical terms used in the embodiments of the present invention have the same meanings as commonly understood by those skilled in the art.

[0050] The embodiment of the present invention provides a pipe plugging head feeding mechanism, see Figure 1 to Figure 5 , The feeding mechanism of the pipe plugging head includes: a plugging coupler 1 , a main support cylinder 2 , a blind flange 8 , a feeding hydraulic cylinder 4 and a rotating hydraulic cylinder 3 .

[0051] Wherein, the plugging coupler 1 is a hollow cylinder with both ends open, and a lower flange 11 is arranged at the lower end of the plugging coupler 1, and the inner space of the plugging coupler 1 can accommodate the pipe plugging head; the blind plate method ...

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Abstract

The invention discloses a pipeline plug feeding mechanism which particularly comprises a plug combiner, a main supporting cylinder, a blind flange, a feeding hydraulic cylinder and a rotating hydraulic cylinder. The plug combiner is a hollow cylinder with two open ends, a lower flange is arranged at the lower end of the plug combiner, the blind flange is fixed at the upper end of the plug combiner, the main supporting cylinder is positioned inside the plug combiner, a cylinder barrel of the feeding hydraulic cylinder is fixedly connected with the blind flange, a cylinder rod of the feeding hydraulic cylinder penetrates the blind flange and is fixedly connected with the upper end of the main supporting cylinder, the rotating hydraulic cylinder is positioned inside the main supporting cylinder, a cylinder barrel of the rotating hydraulic cylinder is connected with the main supporting cylinder through a first pin, and a pipeline plug is connected with a cylinder rod of the rotating hydraulic cylinder through a second pin and connected with the lower end of the main supporting cylinder through a third pin. The feeding mechanism can actively lift the pipeline plug up and down and turn the pipeline plug, and a pipeline is accurately, rapidly and safely plugged.

Description

technical field [0001] The invention relates to the technical field of natural gas crude oil pipeline maintenance, rush repair and renovation, in particular to a pipeline plugging head feeding mechanism. Background technique [0002] Pipeline is the safest and most reliable way to transport media such as oil and gas, and is the lifeline of oil and gas transportation. However, in recent years, due to many factors such as geological disasters, external force damage, and material defects, pipeline damage and valve group leakage accidents have increased one by one. In order to ensure the safety of oil and gas transportation, pipeline maintenance and emergency repair operations are required. In order to repair the pipeline without stopping production, it is necessary to lower the sealing head into the pipeline to seal the medium in the pipeline to prevent the medium in the pipeline from leaking. [0003] In the prior art, the hydraulic cylinder is mainly used as the feeding mech...

Claims

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Application Information

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IPC IPC(8): F16L55/105F16L55/11
CPCF16L55/105F16L55/1125
Inventor 王国超杨旭张蕾郝新伟夏国发陈社鹏赵东辉赵明刘博徐海波李奡张秀梅
Owner BC P INC CHINA NAT PETROLEUM CORP
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