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Novel pipeline defect repair method and repair device

A technology for repairing defects and pipelines, applied to mechanical equipment, pipe components, pipes/pipe joints/fittings, etc., can solve problems such as poor construction flexibility, high repair costs, and high technical level, achieving high repair costs and outstanding flexibility , the effect of flexible repair work

Active Publication Date: 2019-04-12
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The deficiencies of the existing repair technology: 1. Poor construction flexibility 2. High repair cost 3. Requires high technical level of personnel 4. Pipeline welding needs to be stopped

Method used

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  • Novel pipeline defect repair method and repair device
  • Novel pipeline defect repair method and repair device
  • Novel pipeline defect repair method and repair device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0047] Material: The repair material is the same as the steel grade of the pipe body or higher. Colloid: The colloid is a high-strength glue with strong bonding force and short gelation time;

[0048] Repair method: Use a 200mm wide thin steel plate of the same steel grade as the conveying pipe body or a higher steel grade and high-strength sealant to tightly wind the surface-treated pipe body in the same direction, and carry out simultaneous Glue brushing and winding in the same direction; the beginning of winding is 100mm beyond the defect to be repaired, and the end is wrapped 3-5 times at the same end, and then the oblique winding is started, with a diagonal distance of 5-8mm. The terminal is 100mm beyond the defect to be repaired. -5 laps.

example 2

[0050] First, the detachable annular support frame 4, the circular slide rail 5 and the internal gear 6 are all set on the pipeline, and installed and fixed, and then powered by the battery 22, and the work sequence is controlled by the controller 23. First, the telescopic motor 16 Push the installation frame 14 down, the electric push rod 15 pushes the push end on the glue gun 17, the glue is extruded and painted on the pipe, and then the winding motor 12 is controlled to work, and the shaft body 11 is driven to make the glue on the material sleeve 13 The repair material is moved out of the installation box 7, and one end of the repair material is manually fixed on the surface of the pipeline, and the inner gear 6 is driven by the feed motor 9 to mesh with the outer gear 8. Since the installation box 7 is fitted on the circular slide rail 5, the installation The box 7 rotates to realize the winding of the repair material. After winding 3-5 times, the linear module translation ...

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Abstract

The invention discloses a novel pipeline defect repair method and a repair device. The novel pipeline defect repair method comprises the steps of: S1, material and colloid selection, S2, pipe body surface treatment, S3, brush coating winding, and S4, inspection. The novel pipeline defect repair method and the repair device have the beneficial effects that compared with traditional plate repairingand surfacing, the repair method has the main advantages that welding operation does not need to be conducted on a pipe body, thus the risk of welding operation on a pipeline can be lowered.

Description

technical field [0001] The invention relates to the field of novel pipeline defect repair, in particular to a novel pipeline defect repair method and repair equipment. Background technique [0002] Pipeline repair technology is generally called "3R technology" abroad, namely Repair, Rehabilitation, Replace (repair, repair and replacement of pipe sections). Repair mostly refers to the daily maintenance and repair of pipelines, as well as rescue and temporary repairs when leakage accidents occur, while repairing and replacing pipelines is a permanent repair of pipelines. Domestically, the pipeline defects found by various detection methods need to be repaired. For high and medium pressure oil and gas pipelines, external repair methods are mostly used. External repair methods can also be subdivided into pipe body defect reinforcement repair and pipeline anticorrosion layer repair. The method of strengthening the pipe body defects generally adopts various methods such as surf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/17F16B11/00
CPCF16B11/006F16L55/17
Inventor 李晓红胡秀
Owner XI'AN PETROLEUM UNIVERSITY
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