CN107643059A - Electromagnetic acoustic on-line positioned thickness gauging method - Google Patents
Electromagnetic acoustic on-line positioned thickness gauging method Download PDFInfo
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- CN107643059A CN107643059A CN201611086088.9A CN201611086088A CN107643059A CN 107643059 A CN107643059 A CN 107643059A CN 201611086088 A CN201611086088 A CN 201611086088A CN 107643059 A CN107643059 A CN 107643059A
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- electromagnetic acoustic
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Abstract
The present invention relates to a kind of electromagnetic acoustic on-line positioned thickness gauging method, mainly solves the problems, such as that the distance in the prior art in probe with workpiece for measurement is more than 4mm and do not destroyed in the case of petrochemical facility surface anticorrosion Rotating fields and is difficult to on-line positioned thickness gauging.The present invention is by using a kind of electromagnetic acoustic on-line positioned thickness gauging method, user carries out electromagnetic acoustic on-line positioned thickness gauging by electromagnetic acoustic on-line positioned thickness gauging system, the electromagnetic acoustic on-line positioned thickness gauging system includes electromagnet ultrasonic changer, electromagnetic ultrasonic thickness gauge, CPU, radio network gateway, host computer, the technical scheme of industrial control system and preferably solves above mentioned problem, available in electromagnetic acoustic on-line positioned thickness gauging.
Description
Technical field
The present invention relates to a kind of electromagnetic acoustic on-line positioned thickness gauging method.
Background technology
Petrochemical facility spot thickness measurement is timely discovery accident potential caused by burn into washes away, and prevents security incident
Important means.By implementing spot thickness measurement to petrochemical facility, corrosion condition is understood, to realizing scientific and reasonable maintenance, improve stone
Change facilities management level and have and important lead meaning.
CN201210440317.8 high-temperature pipe wall thickness on-Line Monitor Devices disclose a kind of high-temperature pipe wall thickness and supervised online
Device is surveyed, is popped one's head in using piezoelectric supersonic, probe is clamped by pipe clamp of the square stud welding on pipeline, realizes pipeline wall thickness
On-line checking.The on-line monitoring system energy consumption popped one's head in using piezoelectric supersonic is low, it is easy to accomplish pipeline on-line positioned thickness gauging, but press
Electric ultrasonic probe needs to pop one's head in and detected surface close-coupled, works long hours, and keeps probe and detected workpiece surface coupling
The connecting bolt of conjunction inevitably relaxes, and so as to cause to detect data wander, reduces monitoring effect, while in pipeline
Surface soldered fixed bolt destroys the anticorrosion structure of pipe surface, and certain damage is will also result in pipeline body material.
Electromagnetic acoustic technology does not need couplant, and without being in close contact with measured object, detection is quick, and detects sensitive
It is high, in that context it may be convenient to realize on-line checking, cause the extensive concern of each side researcher.Electromagnetic acoustic will be in examined workpiece
Surface particle produces Sasser, and exciting power signal is high-frequency, high voltage, high power signals, and moment excitation voltage reaches 500-
1000V, detect high energy consumption.Electromagnetic ultrasonic probe does not contact with measured workpiece surface, echo-signal signal to noise ratio with probe and it is to be measured
The distance of workpiece requires higher moment excitation voltage into negative exponent relation, the raising of signal to noise ratio.Chinese patent wireless telecommunications connect
Receiving device will constantly activate and is communicated in " monitoring " network, and so as not to lose any data, therefore even if without message, receiver is not yet
It can completely close, to reduce system energy consumption., often can in defect to reduce electromagnetic acoustic On-line gauging system energy consumption in design
It is balanced on detection property and plant energy consumption, using relatively low excitation voltage, the lift-off that causes to pop one's head in is apart from less than normal, it is difficult to for table
The detection of the thicker workpiece of face corrosion-inhibiting coating；Using relatively low excitation voltage, detector antijamming capability dies down, it is difficult to for existing
The environment petrochemical industry process units of complicated electromagnetic interference.CN201520424565.2 provides a kind of straight incoming electromagnetic of shear wave and surpassed
Sonic transducer, using the cylinder-shaped magnet being arranged in shell, boss-shaped magnetic field is produced, is being supervised by integral type loop coil
Workpiece surface excitation ultrasound ripple is surveyed, so as to realize the ultrasonic thickness measurement to high temperature metal workpieces, but the electromagnetism of the Patent design surpasses
Sonic probe does not solve the problems, such as big lift-off distance probe detection high energy consumption, and excitation voltage is low, probe coil and workpiece for measurement
Distance is less than 3mm.
The content of the invention
The technical problems to be solved by the invention are to be more than 4mm and not in the distance of probe and workpiece for measurement in the prior art
The problem of on-line positioned thickness gauging being difficult in the case of destruction petrochemical facility surface anticorrosion Rotating fields, there is provided a kind of new electromagnetism surpasses
Sound on-line positioned thickness gauging method.This method tool detection cycle is adjustable, and the distance on probe coil and workpiece for measurement surface is more than 4mm,
The advantages of on-line positioned thickness gauging can be realized in the case of petrochemical facility surface anticorrosion Rotating fields are not destroyed.
To solve the above problems, the technical solution adopted by the present invention is as follows：A kind of electromagnetic acoustic on-line positioned thickness gauging method,
User carries out electromagnetic acoustic on-line positioned thickness gauging by electromagnetic acoustic on-line positioned thickness gauging system, and the electromagnetic acoustic pinpoints online
Thickness measuring system includes electromagnet ultrasonic changer, electromagnetic ultrasonic thickness gauge, CPU, radio network gateway, host computer, industry control system
System, electromagnet ultrasonic changer is used for producing the electromagnetic field of excitation ultrasound ripple and receives measured workpiece echo electromagnetic signal, including hair
Ray circle and receiving coil；Electromagnetic ultrasonic thickness gauge includes electromagnetic acoustic excitation module, data acquisition module, central processing list
Member, wireless communication module, electromagnetic acoustic excitation module are used for producing high pressure, the height of transducer transmitting coil excitation ultrasound ripple needs
Frequency excitation pulse, the electrical signal of reaction of data collecting module collected transducer receiving coil, CPU are used for controlling electricity
Magnetic ultrasonic excitation module, data acquisition module and wireless communication module, are operated according to pre-set programs, while carry out signal
Analyzing and processing, wireless communication module are used for communicating with radio network gateway, realize being wirelessly transferred for data and host computer；Radio network gateway is used
Carry out relay wireless signals, be the bridge of electromagnetic ultrasonic thickness gauge and upper machine communication.Host computer is used for receiving On-line gauging system
Data, the data of industrial control system are read, carry out statistical analysis, it is determined whether adjustment thickness measuring frequency and data warning；Industrial control system
For the technique information of collection petrochemical facility in real time；When carrying out electromagnetic acoustic on-line positioned thickness gauging, CPU is led to first
Cross plug-in to judge whether to reach detection time, if do not reached, continue waiting for, until default detection time interval；
If reached, control signal is sent, opens wireless communication module, after foundation and upper machine communication, CPU hair
Go out excitation signal, by electromagnetic acoustic excitation module and electromagnet ultrasonic changer in measured workpiece excitation ultrasound ripple, excite super
Signal is carried out by electromagnet ultrasonic changer and data acquisition module acquisition testing consequential signal, CPU after sound wave
After processing, by wireless communication module, testing result data are sent to host computer, after host computer receives, with reference to host computer from work
The petrochemical facility technique information that system acquisition is come is controlled, carries out data analysis, judges whether to need to adjust detection time interval, if
Need, then by wireless communication module, assay intervals are changed in CPU, and close wireless communication module；If
Need not, then CPU closes wireless communication module.
In above-mentioned technical proposal, it is preferable that pass through the central processing unit controls wireless telecommunications mould of electromagnetic ultrasonic thickness gauge
Block is interacted with the communication of radio network gateway and the ultrasonic excitation of electromagnetic acoustic excitation module, realizes the regular thickness measuring and thing of measured workpiece
Part excites thickness measuring.
The method and system problem to be solved that this patent is related to is：It is more than 4mm in the distance of probe and workpiece for measurement,
Thickness measuring system is not destroyed in the case of petrochemical facility surface anticorrosion Rotating fields, designs a kind of electromagnetic acoustic on-line positioned thickness gauging system,
Can continuously it be worked 3~5 years using 12V battery powereds so that thickness measuring system meets the requirement of petrochemical facility continuous monitoring.This
For patent compared with existing correlation technique, system is applied widely, and coil spacing measured workpiece table occurs for electromagnet ultrasonic changer signal
Face lift-off distance is more than 4mm, realizes the thickness measurement online not destroyed under the premise of measured workpiece surface anticorrosion layer, achieves preferably
Technique effect.
Brief description of the drawings
Fig. 1 is the system general frame figure of the method for the invention.
Fig. 2 is the schematic flow sheet of the method for the invention.
Fig. 3 is the embodiment that the method for the invention uses GSM communication modes.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Embodiment
【Embodiment 1】
A kind of electromagnetic acoustic on-line positioned thickness gauging method, user carry out electromagnetism by electromagnetic acoustic on-line positioned thickness gauging system
Ultrasonic on-line positioned thickness gauging.As shown in figure 1, the electromagnetic acoustic on-line positioned thickness gauging system includes electromagnet ultrasonic changer, electricity
Magnetic audigage, CPU, radio network gateway, host computer, industrial control system, electromagnet ultrasonic changer are used for producing exciting
The electromagnetic field and reception measured workpiece echo electromagnetic signal of ultrasonic wave, including transmitting coil and receiving coil；Electromagnetic ultrasonic thickness measuring
Instrument includes electromagnetic acoustic excitation module, data acquisition module, CPU, wireless communication module, and electromagnetic acoustic excites mould
Block is used for producing high pressure, the high frequency excitation pulse of transducer transmitting coil excitation ultrasound ripple needs, and data collecting module collected is changed
Can device receiving coil electrical signal of reaction, CPU be used for control electromagnetic acoustic excitation module, data acquisition module and
Wireless communication module, it is operated according to pre-set programs, while carries out the analyzing and processing of signal, wireless communication module is used for and nothing
Gauze closes communication, realizes being wirelessly transferred for data and host computer；Radio network gateway is used for relay wireless signals, is electromagnetic ultrasonic thickness measuring
The bridge of instrument and upper machine communication.Host computer is used for receiving On-line gauging system data, reads the data of industrial control system, is united
Meter analysis, it is determined whether adjustment thickness measuring frequency and data warning；Industrial control system is used for the technique information of collection petrochemical facility in real time.
When carrying out electromagnetic acoustic on-line positioned thickness gauging, as shown in Fig. 2 CPU is judged by plug-in first
Whether detection time is reached, if do not reached, continued waiting for, until default detection time interval；If reached, send
Control signal, wireless communication module is opened, after foundation and upper machine communication, CPU sends excitation signal, passes through
Electromagnetic acoustic excitation module and electromagnet ultrasonic changer the excitation ultrasound ripple in measured workpiece, surpassed by electromagnetism after excitation ultrasound ripple
Sonic transducer and data acquisition module acquisition testing consequential signal, after CPU is handled signal, by wireless
Communication module, testing result data are sent to host computer, after host computer receives, with reference to stone of the host computer from industrial control system collection
Change facility technique information, carry out data analysis, judge whether to need to adjust detection time interval, if it is desired, then by wireless
Communication module, assay intervals are changed in CPU, and close wireless communication module；If it is not required, then centre
Manage unit and close wireless communication module.
【Embodiment 2】
As shown in figure 3, using gsm wireless communication mode, using technical grade gsm module, the milliwatt of system standby power 3.31,
9.1 watts of power is run, with 12V 10AH supplying cells, gsm module remains and upper machine communication, 1 times/day of meter of thickness measuring frequency
Calculate, it is contemplated that 2 months 1 year battery last service life, it is difficult to meet continuous on-line monitoring needs；Using the present invention, thickness measuring frequency 1
Times/day calculate, thickness measuring system only CPU preset time arrival after, just and upper machine communication, it is contemplated that battery last
3 years service lives, meet the needs continuously monitored on-line.
Claims (2)
1. a kind of electromagnetic acoustic on-line positioned thickness gauging method, user carries out electromagnetism by electromagnetic acoustic on-line positioned thickness gauging system and surpassed
Sound on-line positioned thickness gauging, the electromagnetic acoustic on-line positioned thickness gauging system include electromagnet ultrasonic changer, electromagnetic ultrasonic thickness gauge,
CPU, radio network gateway, host computer, industrial control system, electromagnet ultrasonic changer are used for producing the electromagnetism of excitation ultrasound ripple
Field and reception measured workpiece echo electromagnetic signal, including transmitting coil and receiving coil；Electromagnetic ultrasonic thickness gauge surpasses including electromagnetism
Sound excitation module, data acquisition module, CPU, wireless communication module, electromagnetic acoustic excitation module are used for producing changing
The high pressure of energy device transmitting coil excitation ultrasound ripple needs, high frequency excitation pulse, data collecting module collected transducer receiving coil
Electrical signal of reaction, CPU be used for control electromagnetic acoustic excitation module, data acquisition module and wireless communication module,
It is operated according to pre-set programs, while carries out the analyzing and processing of signal, wireless communication module is used for communicating with radio network gateway, real
Existing data and host computer are wirelessly transferred；Radio network gateway is used for relay wireless signals, is that electromagnetic ultrasonic thickness gauge leads to host computer
The bridge of news.Host computer is used for receiving On-line gauging system data, reads the data of industrial control system, carries out statistical analysis, it is determined that
Whether thickness measuring frequency and data warning are adjusted；Industrial control system is used for the technique information of collection petrochemical facility in real time；Electromagnetism is carried out to surpass
During sound on-line positioned thickness gauging, CPU judges whether to reach detection time by plug-in first, if do not reached,
Then continue waiting for, until default detection time interval；If reached, control signal is sent, wireless communication module is opened, treats
After foundation and upper machine communication, CPU sends excitation signal, passes through electromagnetic acoustic excitation module and electromagnetic acoustic transducer
Can device excitation ultrasound ripple in measured workpiece, pass through electromagnet ultrasonic changer after excitation ultrasound ripple and data collecting module collected examined
Consequential signal is surveyed, after CPU is handled signal, by wireless communication module, testing result is sent to host computer
Data, after host computer receives, with reference to petrochemical facility technique information of the host computer from industrial control system collection, data analysis is carried out,
Judge whether to need to adjust detection time interval, if it is desired, then by wireless communication module, change in CPU
Assay intervals, and close wireless communication module；If it is not required, then CPU closes wireless communication module.
2. electromagnetic acoustic on-line positioned thickness gauging method according to claim 1, it is characterised in that pass through electromagnetic ultrasonic thickness gauge
Central processing unit controls wireless communication module interacted with the communication of radio network gateway and the ultrasound of electromagnetic acoustic excitation module swashs
Hair, realize regular thickness measuring and the event activated thickness measuring of measured workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611086088.9A CN107643059A (en) | 2016-12-01 | 2016-12-01 | Electromagnetic acoustic on-line positioned thickness gauging method |
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| CN201611086088.9A CN107643059A (en) | 2016-12-01 | 2016-12-01 | Electromagnetic acoustic on-line positioned thickness gauging method |
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| CN201611086088.9A Pending CN107643059A (en) | 2016-12-01 | 2016-12-01 | Electromagnetic acoustic on-line positioned thickness gauging method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973828A (en) * | 2019-04-09 | 2019-07-05 | 山东省科学院激光研究所 | On-line detecting system and method is thinned in flame-proof type electromagnetic acoustic oil-gas pipeline corrosion |
| CN112284308A (en) * | 2019-07-24 | 2021-01-29 | 中国石油天然气股份有限公司 | Electromagnetic ultrasonic transverse wave thickness measuring probe |
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| US5456113A (en) * | 1992-11-06 | 1995-10-10 | Southwest Research Institute | Nondestructive evaluation of ferromagnetic cables and ropes using magnetostrictively induced acoustic/ultrasonic waves and magnetostrictively detected acoustic emissions |
| CN101458074A (en) * | 2008-12-31 | 2009-06-17 | 北京声华兴业科技有限公司 | Ultrasonic thickness meter with sensor automatic recognition function |
| CN101701809A (en) * | 2009-11-12 | 2010-05-05 | 哈尔滨工业大学 | Electromagnetic ultrasonic thickness gauge and measurement method thereof |
| CN104155366A (en) * | 2014-08-06 | 2014-11-19 | 乌鲁木齐霞明创新电子科技有限公司 | Ultrasonic non-destructive pipeline detection device |
| CN105180853A (en) * | 2015-09-14 | 2015-12-23 | 哈尔滨工业大学 | Electromagnetic ultrasonic metal material thickness measurement method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5456113A (en) * | 1992-11-06 | 1995-10-10 | Southwest Research Institute | Nondestructive evaluation of ferromagnetic cables and ropes using magnetostrictively induced acoustic/ultrasonic waves and magnetostrictively detected acoustic emissions |
| CN101458074A (en) * | 2008-12-31 | 2009-06-17 | 北京声华兴业科技有限公司 | Ultrasonic thickness meter with sensor automatic recognition function |
| CN101701809A (en) * | 2009-11-12 | 2010-05-05 | 哈尔滨工业大学 | Electromagnetic ultrasonic thickness gauge and measurement method thereof |
| CN104155366A (en) * | 2014-08-06 | 2014-11-19 | 乌鲁木齐霞明创新电子科技有限公司 | Ultrasonic non-destructive pipeline detection device |
| CN105180853A (en) * | 2015-09-14 | 2015-12-23 | 哈尔滨工业大学 | Electromagnetic ultrasonic metal material thickness measurement method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973828A (en) * | 2019-04-09 | 2019-07-05 | 山东省科学院激光研究所 | On-line detecting system and method is thinned in flame-proof type electromagnetic acoustic oil-gas pipeline corrosion |
| CN112284308A (en) * | 2019-07-24 | 2021-01-29 | 中国石油天然气股份有限公司 | Electromagnetic ultrasonic transverse wave thickness measuring probe |
| CN112284308B (en) * | 2019-07-24 | 2023-04-07 | 中国石油天然气股份有限公司 | Electromagnetic ultrasonic transverse wave thickness measuring probe |
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Application publication date: 20180130 |