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Helical soldering seam manual checking machine

A technology of spiral welds and scanners, which is applied to instruments, scientific instruments, and the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids, etc., to achieve stable walking and reliable detection

Active Publication Date: 2008-09-03
PIPECHINA SOUTH CHINA CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most foreign countries use straight seam pipes, so there is no scanner for on-site spiral weld inspection

Method used

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  • Helical soldering seam manual checking machine
  • Helical soldering seam manual checking machine
  • Helical soldering seam manual checking machine

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0056] Embodiment. The specific embodiment of the present invention is described with this example and the present invention is described further. This example is an experimental prototype, and its composition is shown in the figure. In this example, the Ominiscan 32 / 128 PR ultrasonic phased array system is used to carry out inspection tests on in-service pipeline welds and base metals. In order to improve the detection efficiency and defect detection rate, a targeted scanning device is required as an auxiliary Inspection equipment, so that the weld flaw detection can complete the single-sided and double-sided inspection of the weld at the same time, and the data collection must be complete.

[0057] The scanner is used to detect the Φ720mm pipeline of the Northeast Pipeline Network. It can not only walk on the steel pipeline, but also take into account the detection of other pipe diameters. The minimum applicable pipe diameter is Φ426mm, and the maximum applicable pipe diamet...

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PUM

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Abstract

The invention is a spiral weld manual scanner walking on pipelines, which is used for detecting spiral welds of steel pipelines on service with phased array combined with TOFD ultrasonic. The invention relates to the fields of equipment test and pipeline system technology, which are not included in other categories. The invention is composed of a scan rack [1], a probe rack [6], a rolling wheel mechanism and a code device, the rectangle scan rack [1] is equipped with four rolling wheel mechanisms on the four corners, the probe rack [6] is installed on probe rack mobile railways on double sides of the scan rack [1], the code device mechanism is installed on one side out of the scan rack [1]. The scanner can walk on pipelines steadily and reliably, when the scanner detects spiral welds of steel pipelines on service, the probe is parallel to the surface of the pipeline weld accurately all the time and keeps a certain distance with that, in order to provide reliable and accurate tests for detecting spiral welds of steel pipelines on service with phased array combined with TOFD ultrasonic.

Description

technical field [0001] The invention is a manual scanner for the spiral weld that walks on the pipeline when the phased array combined with TOFD ultrasonic wave detects the spiral weld of the steel pipeline in service. The technical field of testing and piping systems involving equipment not covered by other classes. Background technique [0002] The spiral weld manual scanner is a mechanical device for walking on the pipeline when the phased array combined with TOFD ultrasonic detects the spiral weld of the steel pipeline in service. The phased array probe and the TOFD probe are respectively installed on the probe frame of the scanner In addition, the center distance between the phased array probe and the TOFD probe can be adjusted, and the probe can be pressed tightly on the metal surface, free to install and disassemble. The scanner is free to walk along the direction parallel to the weld for flaw detection and scanning, and an encoder is installed on the scanner to reco...

Claims

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Application Information

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IPC IPC(8): G01N29/265G01N29/04F17D5/02
Inventor 王维斌冯庆善周利剑刘广文陈大庆朱自东黄文盛王禹钦
Owner PIPECHINA SOUTH CHINA CO
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