A pipe filling device and method
A technology for filling and piping, which is applied in the field of piping repairing devices, can solve the problems of bubbles generated by heat shrinkable tapes and pipes to be repaired, and reduce the effect of repairing, and achieve the effect of avoiding air bubbles and ensuring the effect of repairing.
Active Publication Date: 2021-01-29
BC P INC CHINA NAT PETROLEUM CORP +2
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Problems solved by technology
[0005] In the prior art, the heat-shrinkable tape is wound on the pipe to be repaired before heating it, and then pressed with a pressure roller tool, which will easily cause air bubbles between the heat-shrinkable tape and the pipe to be repaired, thereby reducing the repairing effect
Method used
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[0069] In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below.
[0070] It should be noted that the pipe to be repaired in the embodiment of the present invention refers to the pipe to be repaired that has undergone derusting treatment and painted a primer on the outer surface, and the primer is still wet. Moreover, an adhesive layer is attached to one side of the heat shrinkable tape.
[0071] In the first aspect, the embodiment of the present invention provides a pipeline repairing device, such as the attached figure 1 As shown, the pipe jointing device includes: a rotating mechanism 1 and a heat-wrapping mechanism 2 . Wherein, the rotating mechanism 1 is rotatably set on the pipeline to be repaired; image 3 As shown, the heat wrapping mechanism 2 includes: a frame 201 fixed on the rotating mechanism 1 , a vacuum roller 202 rotatably arr...
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The invention discloses a pipeline opening repair device and method, and belongs to the technical field of oil and gas pipelines. The pipeline opening repair device comprises a rotary mechanism and athermal winding mechanism, wherein the rotary mechanism rotationally sleeves a pipeline to be subjected to opening repair; and the thermal winding mechanism comprises a rack fixed to the rotary mechanism, a vacuum roll rotationally arranged at one end of the rack, and a heating element arranged at the top of the rack. The heating element is used for heating a thermal shrinkage belt; and the vacuumroll is used for adsorbing and winding the heated thermal shrinkage belt. According to the pipeline opening repair device and method, the heated thermal shrinkage belt is adsorbed and wound on the vacuum roll, and under the rotary action of the rotary mechanism, the thermal shrinkage belt adsorbed and wound on the vacuum roll is compacted onto the pipeline to be subjected to opening repair. The thermal shrinkage belt is wound, heated and compacted synchronously in an opening repair working process, so that the generation of bubbles between the thermal shrinkage belt and the pipeline to be subjected to opening repair is avoided, and then the opening repair effect is ensured.
Description
technical field [0001] The invention relates to the technical field of oil and gas pipelines, in particular to a pipeline repairing device and method. Background technique [0002] Oil and gas pipelines are welded sequentially from multiple steel pipes, and welds are formed between two adjacent steel pipes. Since the weld seam is the part with the worst anti-corrosion effect in the whole pipeline, it is necessary to repair the weld seam of the pipeline in order to ensure the smooth progress of pipeline transportation. It can be seen that it is very necessary to provide a method for pipe filling. [0003] In the prior art, the pipeline repairing operation is carried out by the following method: rust removal treatment is performed on the pipeline to be repaired, and the pipe section is heated after the treatment. Subsequently, the outer surface of the pipe to be repaired is evenly painted with primer (primer generally uses epoxy resin), and when the primer is still wet, the ...
Claims
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IPC IPC(8): B29C53/56B29C53/80B29L23/00
CPCB29C53/56B29C53/8016B29L2023/22
Inventor 郭奇超王长江白树彬
Owner BC P INC CHINA NAT PETROLEUM CORP