A pipeline ultrasonic longitudinal guided wave flexible array detection probe device

A flexible array and detection probe technology, which is applied in measurement devices, analysis of solids using sonic/ultrasonic/infrasonic waves, and material analysis using sonic/ultrasonic/infrasonic waves. Select the guided wave mode and other issues to achieve the effect of compact structure, good mechanical coupling effect and fast adjustment

Active Publication Date: 2017-10-27
HANGZHOU DIANZI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On November 22, 2013, a particularly serious explosion accident occurred in Sinopec Qingdao Donghuang Oil Pipeline. Crude oil leaked from the pipeline entered the municipal drainage culvert, and the oil and gas accumulated in the culvert in the closed space of the journey met sparks and exploded, killing 62 people and injuring 136. Direct economic loss of 750 million yuan
However, this kind of probe and fixing device cannot adjust the number and installation position of the probes, and the guided wave mode cannot be selected according to the type of pipeline, and a set of devices can only be used for the detection of pipelines with the same diameter. In the work tasks of various pipeline detection the cost is too high

Method used

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  • A pipeline ultrasonic longitudinal guided wave flexible array detection probe device
  • A pipeline ultrasonic longitudinal guided wave flexible array detection probe device
  • A pipeline ultrasonic longitudinal guided wave flexible array detection probe device

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Experimental program
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Embodiment

[0049] A pipeline ultrasonic longitudinal guided wave flexible array detection probe device, such as figure 1, figure 2 and image 3 As shown, the ultrasonic longitudinal guided wave detection of the pipe 400 to be tested with an outer diameter of Φ128 mm includes six probe units 100, a chain unit 200 for fixing the probe units 100 into a circular array, and affixing the probe ends of the probe units 100 to The fastener 300 combined on the pipeline 400 to be tested;

[0050] Such as figure 2 , image 3 and Figure 4 As shown, the probe unit 100 includes a mounting base 110, a base 120, a probe 130, a pressing plate 140 and a rotating plate 150; as Figure 4 As shown, the mounting base 110 includes a bottom plate 111 and side wings 112 on both sides of the bottom plate 111, the bottom plate 111 is provided with probe holes 113, and the side wings 112 are respectively provided with wing holes 114; The column 141 is covered with a floating spring 142; the main body of the...

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Abstract

The invention relates to the technical field of non-destructive testing, in particular to a pipeline ultrasonic longitudinal guided wave flexible array detection probe device. It includes several probe units, a chain unit for fixing the probe units into an annular array, and a fastener for attaching the probe end of the probe unit to the pipeline to be tested. The probe unit of the present invention has a compact structure and good mechanical coupling effect, and the device of the present invention has the characteristics of quick assembly and disassembly, modularization and flexibility, and can realize the adjustment of the length of the fixture, the specifications of the probe array elements, the number of array elements and the incidence angle of the probe. adjust.

Description

technical field [0001] The invention relates to the technical field of non-destructive testing, in particular to a pipeline ultrasonic longitudinal guided wave flexible array detection probe device. Background technique [0002] Pipeline, as an efficient and reliable fluid working fluid transport component, has been more and more widely used in modern petrochemical, power generation, transportation and other fields. According to the latest "World Documentary Yearbook" statistics, in 2013, the oil and gas transportation pipelines in operation in the world have reached 3.56 million kilometers, and the length of China's oil and gas transportation pipelines has exceeded 134,000 kilometers, bearing 70% of crude oil and 99% of natural gas transport tasks. [0003] At present, many pipelines are plagued by typical damages such as corrosion and wear, which lead to thinning of the pipeline wall and decrease in mechanical strength, causing pipeline leakage and even explosion accident...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/24G01N29/26G01N29/04
Inventor 于保华胡扩胡小平
Owner HANGZHOU DIANZI UNIV
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