阅读说明：本技术 一种用于化工管路在线检测方法 (Online detection method for chemical pipeline ) 是由 刘福君 吴金才 王云峰 于 2019-09-27 设计创作，主要内容包括：本发明涉及检测方法,更具体的说是一种用于化工管路在线检测方法,包括对管道失效模式进行分析,梳理出该化工管道缺陷类型和失效模式情况形成总结报告；分析各检测技术的技术优势及检测与监测环境,确定对应的缺陷类型及失效类型；对管道缺陷类型和失效模式进行针对性测量；将电磁超声传感器、超声导波传感器安装在管路系统上,采用无线传输技术控制激励接收装置和传输检测数据,监测数据存储在云服务器中；针对性测量为采用超声导波检测对直管段进行缺陷扫查和整体评估；针对性测量为采用电磁超声对直管段、弯头、变径进行腐蚀、冲蚀缺陷定量和管壁内分层、气泡检测。(The invention relates to a detection method, in particular to an online detection method for a chemical pipeline, which comprises the steps of analyzing a pipeline failure mode, combing the defect type and failure mode condition of the chemical pipeline to form a summary report; analyzing the technical advantages of each detection technology and the detection and monitoring environment, and determining the corresponding defect type and failure type; performing targeted measurement on the type of the pipeline defect and the failure mode; the method comprises the following steps of installing an electromagnetic ultrasonic sensor and an ultrasonic guided wave sensor on a pipeline system, controlling an excitation receiving device and transmitting detection data by adopting a wireless transmission technology, and storing the monitoring data in a cloud server; the targeted measurement is to adopt ultrasonic guided wave detection to carry out defect scanning and integral evaluation on a straight pipe section; the targeted measurement is to carry out corrosion, erosion defect quantification, tube wall inner layering and bubble detection on straight tube sections, elbows and reducing tubes by adopting electromagnetic ultrasound.)

1. The utility model provides a be used for chemical industry pipeline on-line measuring method which characterized in that: the method comprises the following steps:

the method comprises the following steps: analyzing the failure mode of the pipeline, and combing the defect type and failure mode condition of the chemical pipeline to form a summary report;

step two: analyzing the technical advantages of each detection technology and the detection and monitoring environment, and determining the corresponding defect type and failure type;

step three; performing targeted measurement on the type of the pipeline defect and the failure mode;

step four: the electromagnetic ultrasonic sensor and the ultrasonic guided wave sensor are installed on a pipeline system, the excitation receiving device is controlled and detection data are transmitted by adopting a wireless transmission technology, and monitoring data are stored in a cloud server.

2. The on-line detection method for the chemical pipeline according to claim 1, characterized in that: the defect types and the failure models are divided into: the defect type and failure mode of the straight pipe section; defect types and failure modes of the elbow and the reducing part; weld defect type and failure mode; flange defect type and failure mode.

3. The on-line detection method for the chemical pipeline according to claim 2, characterized in that: the detection technology comprises an ultrasonic guided wave detection technology, an electromagnetic ultrasonic detection technology, a magnetic flux leakage detection technology, an eddy current detection technology and a phased array detection technology.

4. The on-line detection method for the chemical pipeline according to claim 3, wherein the method comprises the following steps: the targeted measurement is to adopt ultrasonic guided wave detection to carry out defect scanning and overall evaluation on a straight pipe section.

5. The on-line detection method for the chemical pipeline according to claim 3, wherein the method comprises the following steps: the targeted measurement is to perform corrosion, erosion defect quantification, tube wall inner layering and bubble detection on straight tube sections, elbows and reducing tubes by adopting electromagnetic ultrasound.

6. The on-line detection method for the chemical pipeline according to claim 3, wherein the method comprises the following steps: the pertinence measurement is to detect the corrosion and partial crack defects of the straight pipe section by adopting magnetic flux leakage detection.

7. The on-line detection method for the chemical pipeline according to claim 3, wherein the method comprises the following steps: the targeted measurement is to detect the surface crack defects of the straight pipe section by adopting eddy current detection.

8. The on-line detection method for the chemical pipeline according to claim 3, wherein the method comprises the following steps: the pertinence measurement is to detect the defects of the joints of the welding seams, the flanges and the bolts by adopting phased array detection.

Technical Field

The invention relates to a detection method, in particular to an online detection method for a chemical pipeline.

Background

The pipeline is widely applied in the industrial field, but because the service environment of the industrial pipeline is complex, defects such as corrosion, cracks and the like are easy to generate in the service process, and potential safety hazards are formed. In order to prevent industrial accidents, the in-service pipelines need to be regularly detected or monitored in real time, so that the health condition of the pipelines can be known in time. The chemical pipeline has numerous and complex defect types and failure modes, and the health condition of the chemical pipeline is difficult to be comprehensively detected and evaluated by adopting a single nondestructive detection technology; how to effectively process and integrate the technical advantages of different detection technologies so as to fuse the laboratory sheets of different detection technologies into a complete physical examination report is a main problem at present, and the research scheme of the invention is to effectively solve the problem.

Disclosure of Invention

The invention aims to provide an on-line detection method for chemical pipelines, which can effectively process and integrate technical advantages of different detection technologies and detect failure shapes of the pipelines.

The purpose of the invention is realized by the following technical scheme:

an on-line detection method for chemical pipelines comprises the following steps:

the method comprises the following steps: analyzing the failure mode of the pipeline, and combing the defect type and failure mode condition of the chemical pipeline to form a summary report;

step two: analyzing the technical advantages of each detection technology and the detection and monitoring environment, and determining the corresponding defect type and failure type;

step three; performing targeted measurement on the type of the pipeline defect and the failure mode;

step four: the electromagnetic ultrasonic sensor and the ultrasonic guided wave sensor are installed on a pipeline system, the excitation receiving device is controlled and detection data are transmitted by adopting a wireless transmission technology, and monitoring data are stored in a cloud server.

As a further optimization of the technical scheme, the invention provides an online detection method for chemical pipelines, wherein the defect types and the failure models are as follows: the defect type and failure mode of the straight pipe section; defect types and failure modes of the elbow and the reducing part; weld defect type and failure mode; flange defect type and failure mode.

As further optimization of the technical scheme, the invention provides the on-line detection method for the chemical pipeline, and the detection technology comprises an ultrasonic guided wave detection technology, an electromagnetic ultrasonic detection technology, a magnetic flux leakage detection technology, an eddy current detection technology and a phased array detection technology.

As further optimization of the technical scheme, the method for the online detection of the chemical pipeline is used, and the targeted measurement is to perform defect scanning and overall evaluation on a straight pipeline section by adopting ultrasonic guided wave detection.

As further optimization of the technical scheme, the method for the online detection of the chemical pipeline is used for carrying out targeted measurement on corrosion, erosion defect quantification, pipe wall inner layering and bubble detection on straight pipe sections, elbows and reducing pipes by adopting electromagnetic ultrasound.

As further optimization of the technical scheme, the method for the online detection of the chemical pipeline is used, and the targeted measurement is to detect the corrosion and partial crack defects of the straight pipeline section by adopting magnetic flux leakage detection.

As further optimization of the technical scheme, the method for the online detection of the chemical pipeline is used, and the targeted measurement is to detect the surface crack defects of the straight pipeline section by adopting eddy current detection.

As further optimization of the technical scheme, the method for the on-line detection of the chemical pipeline is used, and the targeted measurement is to detect the defects of the joints of the welding seams, the flanges and the bolts by adopting phased array detection.

The chemical pipeline online detection method has the beneficial effects that:

the online detection method for the chemical pipeline can perform targeted measurement aiming at the defect type and the failure mode of the pipeline, remote control is realized by using an intelligent monitoring cloud platform in cooperation with an online monitoring system, the corrosion rate of the pipeline can be measured after long-time detection data change, and the service life of the pipeline is estimated.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a flow chart of the chemical pipeline on-line detection method of the present invention;

FIG. 2 is a schematic view of a pipe inner wall oxide layer wear defect simulation processing plate according to the present invention;

FIG. 3 is a schematic view of a weld corrosion and pipe wall pitting defect simulation processing plate near the weld of the present invention;

FIG. 4 is a schematic diagram of the thickness measurement result of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.