CN207586181U - The passive sound fusion detection system of storage tank bottom plate master - Google Patents
The passive sound fusion detection system of storage tank bottom plate master Download PDFInfo
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- CN207586181U CN207586181U CN201721526984.2U CN201721526984U CN207586181U CN 207586181 U CN207586181 U CN 207586181U CN 201721526984 U CN201721526984 U CN 201721526984U CN 207586181 U CN207586181 U CN 207586181U
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Abstract
The utility model discloses a kind of passive sound fusion detection systems of storage tank bottom plate master, the system passes through a certain number of sonic sensors uniformly distributed at bottom edge board, excite Active Acoustic field wave, acquire active acoustically-driven modulated signal and passive acoustic emission signal simultaneously, frequency domain and the processing of time-domain information convergence analysis can be completed, forms the image of the distribution of storage tank bottom plate defective locations, size and corrosion active degree (activity).The utility model changes the point-by-point detection pattern of sensor of conventional ultrasound guided wave technology, the active acoustically-driven detection method of sensor array is fixed using tank bottom, change acoustical signal incentive mode and defect modulated signal extracting mode, improve detection coverage area, obtain defective locations and size；It merges passive acoustic emission detection method to be detected storage tank bottom plate active corrosion, detection efficiency will be greatly improved, while evaluation result is more comprehensively intuitive and reliable.
Description
Technical field
The utility model belongs to storage tank detection technique field, more particularly to a kind of passive sound fusion detection system of storage tank bottom plate master
System.
Background technology
Supersonic guide-wave and sound emission can be achieved on the technology of storage tank bottom plate on-line checking that not can opening does not stop production.Wherein：
Supersonic guide-wave is active audio technology, and test system shows as sensor being placed on the bottom edge board polished,
Under the control of guided wave transceiver, sensor actively sends out and Lamb wave is excited in pulse signal to tank bottom, when Lamb wave encounters
During defect, echo is formed, the position of defect can be relatively accurately calculated by analyzing echo-signal.So by sensor edge
It bottom edge board to run one week, is detected point by point, obtain the detection data of multiple directions, number is finally completed by computer again
According to Macro or mass analysis, formed tank bottom defect distribution image, the established corrosion damage of bottom plate can be characterized.
Sound emission is passive audio technology, and test system shows as uniformly distributed a certain number of sensings at the nearly bottom plate of storage tank outer wall
Device by interesting to listen to sound, be connected on Acoustic radiating instrument by coaxial cable, data are handled by host computer, sound is received by each sensor
Emit the time difference comprehensive estimate sound source position of signal, understand the corrosion condition in each region of tank bottom, the corrosion of qualitative evaluation bottom plate
Activated state.
As it can be seen that supersonic guide-wave and acoustic emission system can be by being detected storage tank bottom plate in bottom placement sensor.
Ultrasonic guided wave detecting is corrosion default that storage tank bottom plate has been formed, it is therefore intended that detects that bottom plate has formed corrosion default portion
Position；The active degree of corrosion location is occurring for acoustic emission detection storage tank bottom plate, it is therefore intended that finds out corrosion and is occurring
Position qualitative evaluation activity.The emphasis of two kinds of detection techniques is different with obtained result, but final purpose is clearly to store up
The state safety work of tank.The position for having formed corrosion default is not necessarily being corroded, and corrodes active position not
Certain residual thickness is small.
Since supersonic guide-wave system of the prior art can only detect the position that tank bottom has corrosion default, can't obtain
The size of defect, and acoustic emission system is only capable of detection bottom corrosion activity, is utilizing supersonic guide-wave with acoustic emission system to storage tank
Bottom plate carries out being likely to occur the incomplete problem of evaluation result during on-line checking.
Further, since supersonic guide-wave technology needs along bottom edge board to run sensor one week, detected point by point,
Therefore supersonic guide-wave technology have monitoring efficiency it is low, because of the limitations such as acoustic attenuation detection coverage area is smaller.
Utility model content
The purpose of this utility model is that a kind of passive sound fusion detection system of storage tank bottom plate master is proposed, to improve detection system
The detection coverage area and detection efficiency of system, while so that evaluation result is more comprehensively intuitive and reliable.
To achieve these goals, the utility model adopts the following technical solution：
The passive sound fusion detection system of storage tank bottom plate master, including sonic sensor, capture card and host computer；Wherein, sound wave
Sensor is connected with capture card by signal cable, and capture card is connected with host computer by high-speed bus；；
The sonic sensor has multiple, and each sonic sensor is evenly arranged on the bottom edge board outside storage tank；
Active Acoustic excitation module, data acquisition module and central processing unit are integrated on the capture card；Wherein：
Active Acoustic encourages module and data acquisition module to be connect respectively with central processing unit.
Preferably, it is fitted closely between the sonic sensor and bottom edge board by couplant.
Preferably, it is connected between the sonic sensor and capture card by coaxial cable.
Preferably, the Active Acoustic excitation module is configurable for that sonic sensor is excited in tank bottom generation Active Acoustic to swash
Encourage wave.
Preferably, the frequency range of the Active Acoustic field wave is 20kHz-500kHz.
Preferably, the sonic sensor is configurable for receiving active acoustically-driven modulated signal and passive sound emission letter
Number；
Wherein, active acoustically-driven modulated signal is that Active Acoustic field wave trigger sensor after the modulation of tank bottom defect obtains
's；Passive acoustic emission signal is obtained by the passive acoustic emission wave trigger sensor that bottom corrosion active defects are sent out.
The utility model has the following advantages that：
The utility model excites active acoustically-driven by a certain number of sonic sensors uniformly distributed at bottom edge board
Wave, while active acoustically-driven modulated signal and passive acoustic emission signal are acquired, frequency domain and the processing of time-domain information convergence analysis are completed,
Form the position distribution, size and the image for corroding active degree (activity) of storage tank bottom plate defect.The utility model changes
The point-by-point detection pattern of sensor of conventional ultrasound guided wave technology is extracted using acoustical signal incentive mode and defect modulated signal
The active acoustically-driven detection method of mode improves detection coverage area；Merge passive acoustic emission detection method to storage tank bottom plate into
Capable detection, will greatly improve detection efficiency, integrate storage tank technological parameter, and evaluation result is more comprehensively intuitive and reliable.
Description of the drawings
Fig. 1 is the structure diagram of the passive sound fusion detection system of storage tank bottom plate master in the utility model embodiment 1；
Fig. 2 is the arrangement figure of sonic sensor in the utility model embodiment 1；
Fig. 3 is the vertical view of sonic sensor arrangement in Fig. 2；
Fig. 4 is the flow diagram of the passive sound fusion detection method of storage tank bottom plate master in the utility model embodiment 4；
The defects of Fig. 5 is storage tank bottom plate in the utility model is distributed and corrosion active degree distribution map；
Wherein：1- sonic sensors, 2- capture cards, 3- host computers, 4- Active Acoustics excitation module, 5- data acquisition modules,
6- central processing unit, 7- storage tank industrial control systems, 8- storage tanks, 9- bottom edge boards.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail the utility model：
Embodiment 1
With reference to shown in Fig. 1, the passive sound fusion detection system of storage tank bottom plate master, including sonic sensor 1, capture card 2 and on
Position machine 3；Sonic sensor 1 is connected with capture card 2 by signal cable, and capture card 2 is connected with host computer 3 by high-speed bus.
Sonic sensor 1 in the present embodiment 1 has multiple, and each sonic sensor 1 is evenly arranged in the tank outside storage tank 8
In Bottom Edge Board 9, as shown in Figures 2 and 3.
Sonic sensor 1 in the present embodiment 1 has the function of reception and transmitting sound wave simultaneously.
By arranging that the defects of above-mentioned sonic sensor can be to tank bottom situation carries out main passive acoustic wave detection.
Active Acoustic excitation module 4, data acquisition module 5 and central processing unit 6 are integrated on capture card 2.Wherein：
Active Acoustic encourages module 4 and data acquisition module 5 to be connect respectively with central processing unit 6.
Active Acoustic excitation module 4 is configurable for excitation sonic sensor 1 and generates Active Acoustic field wave in tank bottom.It generates
Active Acoustic field wave include low-frequency sound wave and high frequency sound wave, specifically depending on the structure and specification of storage tank.
Sonic sensor 1 is configurable for receiving active acoustically-driven modulated signal and passive acoustic emission signal.Wherein：
Active acoustically-driven modulated signal is that Active Acoustic field wave trigger sensor 1 after the modulation of tank bottom defect obtains；
Passive acoustic emission signal is obtained by the passive acoustic emission wave trigger sensor 1 that bottom corrosion active defects are sent out
's.
Data acquisition module 5 is configurable for acquiring the active acoustically-driven modulated signal received via sonic sensor 1
With passive acoustic emission signal, central processing unit 6 is sent to after collected signal then is digitized processing.
Central processing unit 6 is configurable for control Active Acoustic excitation module 4 and data acquisition module 5, is carried out at the same time
Signal processing analysis obtains defect information data, and corresponding defect information data then are uploaded to host computer.
Herein, central processing unit 6 is mainly worth basic filtering to the processing analysis of signal.
Wherein, defect information data can host computer by processing analyze, obtain position distribution, the size of defect with
And corrosion activity of defect etc..
The defects of host computer 3 is configurable for receiving information data is demodulated, by demodulated signal in each inspection
The Energy distribution surveyed on node determines the position of defect, according to detection wave signal abnormal propagation situation, waveform parameter and frequency spectrum
Form identifies the basic size of defect.
Each detection node is to correspond to the sonic sensor 1 arranged on the bottom edge board of storage tank.
Simultaneously host computer 3 be additionally configured to for the active acoustically-driven modulated signal to acquisition and passive acoustic emission signal into
Line frequency domain and the signal fused of time domain carry out image weight by chromatography imaging technique to the signal that each sonic sensor receives
The defects of building, obtaining storage tank bottom plate corrosion is distributed, and corrosion area is occurring by location algorithm, according to the acquisition of locating events number
Corrode active degree distribution；
Wherein, to master, the process of passive acoustic emission signal fusion exactly carries out these signals at analysis according to time domain sequences
Reason, while to the process that frequency domain is analyzed, by the way that the active acoustically-driven modulated signal of defect and passive sound emission are believed
Number melt as a set, so as to carry out qualitative and quantitative analysis to all aggregate signals of the defect, to obtain the activity of defect
And size.
Host computer 3 reads storage tank technological parameter simultaneously, realizes the comprehensive analysis to storage tank bottom plate etch state and evaluation.
Storage tank technological parameter in the present embodiment 1 is stored in storage tank industrial control system 7, and host computer 3 is by way of reading
Storage tank technological parameter is obtained from storage tank industrial control system, storage tank technological parameter includes the parameters such as liquid level, temperature.
Preferably, it is fitted closely between sonic sensor 1 and bottom edge board by couplant, to improve detection result.
For exemplary tank specification, the present embodiment 1 also separately designs different sizes, the sound wave sensing of different loop constructions
Device carries out different frequency acoustic wave excitation experiment, so as to select the good sonic sensor of detection result and driving frequency.
The passive sound fusion detection system of storage tank bottom plate master in the present embodiment 1 has following advantage compared with the prior art：
1st, sonic sensor 1 is distributed on bottom edge board, carries out the hair and receipts of Active Acoustic pumping signal, while to passive
Acoustic emission signal is received, and is changed the point-by-point detection pattern of sensor of conventional ultrasound guided wave system, is improved detection efficiency.
2nd, preferably sensor parameters and Active Acoustic driving frequency, improve active acoustically-driven detecting system coverage area.
3rd, the main passive sound of fusion forms tank floor inspection system, is merged by frequency domain and the main passive acoustic signal of time domain,
Image reconstruction is carried out to the signal that sonic sensor each on bottom edge board receives by chromatography imaging technique, obtains storage tank
The defects of Corrosion of base plate position distribution, size, can be obtained additionally by location algorithm occurring corrosion area distribution；
The present embodiment 1 can obtain the Reducing thickness and corrosion activity of storage tank bottom plate corrosion default, and evaluation result more intuitively may be used
It leans on.
Embodiment 2
The present embodiment 2 has addressed a kind of passive sound fusion detection system of storage tank bottom plate master, and the embodiment 2 is special except following technology
Except sign and 1 difference of above-described embodiment, remaining technical characteristic can refer to above-described embodiment 1.
It, can be with using multiple narrowband excitation signals as field wave since sound wave modal number increases with the increase of frequency
Inhibit to be energized the multi-modal of wave, reduce the complexity of monitoring.Frequency ranging from 20kHz-500kHz in the present embodiment 2, this model
Excitation wave attenuation in enclosing is slower, and frequency range of the frequency range as Active Acoustic field wave may be selected.
Embodiment 3
The present embodiment 3 has addressed a kind of passive sound fusion detection system of storage tank bottom plate master, and the embodiment 3 is special except following technology
Except sign and 1 difference of above-described embodiment, remaining technical characteristic can refer to above-described embodiment 1.
It is connected between sonic sensor 1 and capture card 2 in the present embodiment 3 by coaxial cable.
Embodiment 4
The present embodiment 4 has addressed a kind of passive sound fusion detection method of storage tank bottom plate master, the storage tank bottom plate that this method uses
Main passive sound fusion detection system can be used such as the passive sound fusion detection system of storage tank bottom plate master in above-described embodiment 1,2 or 3.
As shown in figure 4, the passive sound fusion detection method of storage tank bottom plate master includes the following steps in the present embodiment 4：
First, installation process：
The sensor array being made of multiple sonic sensors 1 is arranged on the bottom edge board polished first, is led to
Overcoupling agent fits closely, and sonic sensor 1 is connected to capture card 2 by coaxial cable；
2nd, detection process：
1. central processing unit 6 sends out firing command to Active Acoustic excitation module 4,4 excitation sound of module is encouraged by Active Acoustic
Wave sensor 1 generates Active Acoustic field wave in tank bottom；
2. above-mentioned Active Acoustic field wave obtains active acoustically-driven modulated signal after the modulation of tank bottom defect, and by bottom corrosion
Active defects can be sent out passive acoustic emission signal, both signals are received by sonic sensor 1；
3. active acoustically-driven modulated signal and passive acoustic emission signal are sent to data acquisition module 5 by sonic sensor 1；
4. collected signal is digitized processing and is then forwarded to central processing unit 6 by data acquisition module 5；
5. central processing unit 6 handles received signal, the tank bottom defect information data of storage tank are obtained, then will
The defect information data are sent to host computer 3；
6. host computer is demodulated defect information data, pass through Energy distribution of the demodulated signal in each detection node
It determines the position of defect, the basic of defect is identified by detecting wave signal abnormal propagation situation, waveform parameter and spectrum morphology
Size；
Host computer 3 also carries out frequency domain and time domain to the active acoustically-driven modulated signal of acquisition and passive acoustic emission signal simultaneously
Signal fused, the signal received by chromatography imaging technique to each sonic sensor carries out image reconstruction, obtains storage tank
The defects of Corrosion of base plate positions and dimensions, by location algorithm, according to locating events number acquisition occurring corrosion area corrode
Active degree is distributed, as shown in Figure 5：Wherein, the grey cloud atlas of plane be exactly formed defect distribution grey histogram be corrosion
The distribution of active degree, " X " direction, " Y " direction are respectively two coordinate directions of horizontal plane residing for storage tank bottom plate, event number table
Show corrosion active degree, " N# " represents the sensor that number is N, and the value of N is natural number.
Host computer 3 reads storage tank technological parameter simultaneously, realizes the comprehensive analysis to storage tank bottom plate etch state and evaluation.
The present embodiment 4 acquires active acoustically-driven modulated signal and passive acoustic emission signal simultaneously, can complete frequency domain and when
Domain information convergence analysis processing, so as to form the distribution of storage tank bottom plate defective locations, size and corrosion active degree (activity)
Image.
The utility model, which efficiently solves supersonic guide-wave technology in the prior art and can only detect tank bottom, has corrosion default position
Put, and acoustic emission system is only capable of detection tank bottom just in the activity of corrosion area, caused by on-line checking is carried out to storage tank bottom plate
The point-by-point detection efficiency for being likely to occur the incomplete problem of evaluation result and supersonic guide-wave technology is low and acoustic attenuation detects model
Enclose the problem of small.
Certainly, the preferred embodiment of only the utility model described above, the utility model is not limited to enumerate above-mentioned
Embodiment, it should be noted that for any those skilled in the art under the introduction of this specification, that is made is all etc.
With replacement, apparent variant, all fall within the essential scope of this specification, ought to be protected by the utility model.
Claims (6)
1. the passive sound fusion detection system of storage tank bottom plate master, which is characterized in that including sonic sensor, capture card and host computer；
Wherein, sonic sensor is connected with capture card by signal cable, and capture card is connected with host computer by high-speed bus；
The sonic sensor has multiple, and each sonic sensor is evenly arranged on the bottom edge board outside storage tank；
Active Acoustic excitation module, data acquisition module and central processing unit are integrated on the capture card；Wherein：
Active Acoustic encourages module and data acquisition module to be connect respectively with central processing unit.
2. the passive sound fusion detection system of storage tank bottom plate master according to claim 1, which is characterized in that the sound wave sensing
It is fitted closely between device and bottom edge board by couplant.
3. the passive sound fusion detection system of storage tank bottom plate master according to claim 1 or 2, which is characterized in that the sound wave
It is connected between sensor and capture card by coaxial cable.
4. the passive sound fusion detection system of storage tank bottom plate master according to claim 1, which is characterized in that the Active Acoustic swashs
It encourages module and is configurable for excitation sonic sensor in tank bottom generation Active Acoustic field wave.
5. the passive sound fusion detection system of storage tank bottom plate master according to claim 4, which is characterized in that the Active Acoustic swashs
The frequency range for encouraging wave is 20kHz-500kHz.
6. the passive sound fusion detection system of storage tank bottom plate master according to claim 4, which is characterized in that the sound wave sensing
Device is configurable for receiving active acoustically-driven modulated signal and passive acoustic emission signal；Wherein：
Active acoustically-driven modulated signal is that Active Acoustic field wave trigger sensor after the modulation of tank bottom defect obtains；
Passive acoustic emission signal is obtained by the passive acoustic emission wave trigger sensor that bottom corrosion active defects are sent out.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307709A (en) * | 2017-11-16 | 2019-02-05 | 中国石油化工股份有限公司 | The passive sound of storage tank bottom plate master merges detection system |
| CN111189765A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Multi-source corrosion acoustic emission experiment testing device for storage tank bottom plate |
| CN111189766A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Petrochemical equipment corrosion source active and passive dynamic acoustic fusion experimental testing device |
| CN111189767A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Storage tank bottom plate corrosion damage experiment testing arrangement |
-
2017
- 2017-11-16 CN CN201721526984.2U patent/CN207586181U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307709A (en) * | 2017-11-16 | 2019-02-05 | 中国石油化工股份有限公司 | The passive sound of storage tank bottom plate master merges detection system |
| CN109307709B (en) * | 2017-11-16 | 2024-06-07 | 中国石油化工股份有限公司 | Active and passive acoustic fusion detection system for storage tank bottom plate |
| CN111189765A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Multi-source corrosion acoustic emission experiment testing device for storage tank bottom plate |
| CN111189766A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Petrochemical equipment corrosion source active and passive dynamic acoustic fusion experimental testing device |
| CN111189767A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Storage tank bottom plate corrosion damage experiment testing arrangement |
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Effective date of registration: 20221221 Address after: No. 22, Chaoyangmen street, Chaoyang District, Beijing 100020 Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec Safety Engineering Research Institute Co.,Ltd. Address before: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: SINOPEC Research Institute OF SAFETY ENGINEERING |