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Pipeline plugging device with resonance switch

An occluder and pipeline technology, applied in the direction of pipe elements, pipes/pipe joints/pipe fittings, mechanical equipment, etc., can solve the problems of resistance in the recovery process and the lack of strict blocking of pipeline occluders, so as to reduce resistance and safety. High and reduced risk of jamming

Inactive Publication Date: 2016-08-17
SOUTHWEST PETROLEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Purpose of the present invention: In order to overcome the shortcomings of the existing pipeline occluder, which is not strict in sealing and the resistance in the recovery process is too large, a pipeline occluder with a resonance switch is specially provided

Method used

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  • Pipeline plugging device with resonance switch
  • Pipeline plugging device with resonance switch

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Embodiment Construction

[0022] The present invention is not limited by the following implementation examples, and specific implementation manners can be determined according to the technical solutions of the present invention and actual conditions. Combine below Figure 1~6 The present invention is described below. The positional relationship of up, down, left, right, etc. is based on the attached figure 1 determined by the layout direction.

[0023] The front cup 3 is dish-shaped with a central hole. The front end cover 2 is installed on the front end of the mandrel 8 and connected with threads. The front cup 3 is pressed on the front cover 2 through the front mounting ring 4 and the front cover 2 and the front mounting ring are connected by bolts. 4. The rear end of the mandrel 8 is installed with a rear end cover 14 and fixed by welding. The rear cups 13 are circular, and the two rear cups 13 are pressed on the rear end cover 14 through the rear mounting ring 11 and the rear end cover 14 is con...

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Abstract

The invention relates to a pipeline plugging device with a resonance switch, and the pipeline plugging device is used for plugging a pipeline cut-off part during welding operation of a pipeline in use. According to the technical scheme adopted by the invention, a front end cover and a rear end cover are mounted at the end parts of a mandrel; a front leather cup is fixed to the front end cover; a rear leather cup is fixed to the rear end cover; a sliding sleeve is arranged in the middle of the mandrel in a sleeved manner; the side edge of the front leather cup and the sliding sleeve are connected by a supporting rod; an air cylinder is arranged between the sliding sleeve and the rear end cover; a vibrating rod is fixedly arranged on the sliding sleeve; a controllable one-way valve and a vibrating switch are mounted at the end parts of the vibrating rod. The pipeline plugging device is taken back in a hole shrinkage mode, so that resistance generated in a taking-back process can be reduced; the plugging device only comprises a mechanical system and an air pressure system, and does not have an electric control part, so that the use security on an oil-gas pipeline is higher.

Description

technical field [0001] The invention relates to a pipeline sealing device with a resonance switch, which is used for sealing the cutting part of the pipeline during the welding operation of the pipeline. Background technique [0002] In oil and gas storage and transportation and urban gas projects, long-distance large-diameter pipelines need to be laid for oil and natural gas transportation. For oil and gas pipelines in service, as the service life of the pipeline increases, the pipeline may be damaged and defective due to factors such as corrosion, fatigue and mechanical damage. , or due to urban construction and other reasons that require the rerouting of in-service pipelines, etc., it is necessary to re-weld new pipelines after part of the in-service oil and gas pipelines are cut off. Oil and gas are replaced or blocked. [0003] Existing hot-fire technologies mainly include hot-fire displacement technology and safety-blocking hot-fire technology. Among them, nitrogen re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/132
CPCF16L55/132
Inventor 张梁刘稳邓兰邓严何虹钢
Owner SOUTHWEST PETROLEUM UNIV
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