Pneumatic pipeline plugging mechanism
A pneumatic pipeline and pneumatic muscle technology, applied in the direction of pipe components, mechanical equipment, pipes/pipe joints/pipe fittings, etc., can solve the problems of pipeline environmental pollution, complex overall structure, heavy quality, etc., and achieve deformation shrinkage and return to original position Fast, clean pneumatic system, simple structure effect
Active Publication Date: 2014-04-09
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology
Because the hydraulic thrust cylinder will be stuck after being used for a period of time, the sealing effect is poor, and even the sealing fails; in addition, the hydraulic thrust cylinder also has oil leakage, which causes great environmental pollution in the pipeline
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0030] Such as figure 1 As shown, the present invention provides a pneumatic pipeline sealing mechanism, which includes a sealing cylinder 1 , an expansion block 2 and a pressure flange 3 . Wherein: the sealing cylinder 1 has a housing chamber 11, the housing chamber 11 is provided with a thrust flange 12 and a plurality of pneumatic muscles 13 connected with the thrust flange 12, and the thrust flange 12 is connected to the sealing cylinder On the inner side wall...
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The invention discloses a pneumatic pipeline plugging mechanism. The pneumatic pipeline plugging mechanism comprises a sealing barrel, an expansion block, and a bearing flange, wherein the sealing barrel is provided with a containing chamber; a pushing flange and a plurality of pneumatic clamping devices which are connected with the pushing flange are arranged in the containing chamber; the pushing flange is connected to the internal sidewall of one end of the sealing barrel; a plurality of sealing locking rubber rings are sleeved outside the sealing barrel; the expansion block is connected to the other end of the sealing barrel and connected with the plurality of pneumatic clamping devices; the bearng flange is connected with the external end of the expansion block; and a nitrogen supplying device is arranged between the bearing flange and the expansion block and connected with the plurality of pneumatic clamping devices. According to the pneumatic pipeline plugging mechanism, a pipeline can be sealed through the sealing locking rubber ring on the pneumatic pipeline blocking mechanism under the driving of the pneumatic clamping devices; and the pneumatic pipeline plugging mechanism is simple in structure and relatively light in mass, and cannot cause new deformation and damage on the internal wall of the pipeline; and a pneumatic system is clean and does not cause environmental pollution.
Description
technical field [0001] The invention relates to a pipeline sealing mechanism, in particular to a pneumatic pipeline sealing mechanism applied in the field of pipeline sealing robots. Background technique [0002] In recent years, with the construction of the "West-to-East Gas Pipeline" pipeline, the development speed and technical level of my country's pipeline industry have entered the world's advanced ranks. Statistics show that 62% of my country's pipelines have a "service period" of more than 20 years, and nearly 85% have more than 10 years. These pipelines will be affected by the medium inside and outside the pipeline during long-term use, resulting in problems such as corrosion, scaling, cracks, perforation, etc., which will lead to failure of the pipeline and affect the normal production and transportation of oil and gas. Therefore, planned detection and repair of pipelines is an important part of safe production in the oil and gas industry. [0003] In the process ...
Claims
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IPC IPC(8): F16L55/10
Inventor 赵弘赵毅鑫
Owner CHINA UNIV OF PETROLEUM (BEIJING)