CN105203641A - Built-in type acoustic emission test method for corrosion of bottom plate of storage tank - Google Patents
Built-in type acoustic emission test method for corrosion of bottom plate of storage tank Download PDFInfo
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- CN105203641A CN105203641A CN201510606528.8A CN201510606528A CN105203641A CN 105203641 A CN105203641 A CN 105203641A CN 201510606528 A CN201510606528 A CN 201510606528A CN 105203641 A CN105203641 A CN 105203641A
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- 230000007797 corrosion Effects 0.000 title claims abstract description 24
- 238000005260 corrosion Methods 0.000 title claims abstract description 24
- 238000010998 test method Methods 0.000 title abstract 3
- 239000013527 degreasing agent Substances 0.000 claims abstract description 16
- 239000010779 crude oil Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000035945 sensitivity Effects 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims abstract description 3
- 239000011159 matrix material Substances 0.000 claims abstract description 3
- 239000003921 oil Substances 0.000 claims description 70
- 238000001514 detection method Methods 0.000 claims description 32
- 230000007246 mechanism Effects 0.000 claims description 27
- 238000009499 grossing Methods 0.000 claims description 23
- 238000007790 scraping Methods 0.000 claims description 21
- 210000004907 gland Anatomy 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000011900 installation process Methods 0.000 claims description 3
- 238000012946 outsourcing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- 239000002131 composite material Substances 0.000 abstract 2
- 238000013028 emission testing Methods 0.000 abstract 2
- 238000012360 testing method Methods 0.000 abstract 2
- 239000012814 acoustic material Substances 0.000 abstract 1
- 238000005237 degreasing agent Methods 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 53
- 238000012544 monitoring process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Abstract
The invention relates to a built-in type acoustic emission test method for corrosion of a bottom plate of a storage tank. The method comprises the steps that a built-in type acoustic emission testing instrument is mounted, and a circle of acoustic emission sensors are uniformly distributed at equal altitudes in the positions close to the bottom plate of the outer wall of the storage tank; the built-in type acoustic emission testing instrument is started, a driving roller drives a polyethylene-aluminum composite pip to move downwards, sensor boxes move downward, and the vertical displacement of the acoustic emission sensors is determined according to the reading of a depth gauge; the horizontal positions and the sensitivity of the placed sensors are determined according to acoustic material property matrix test, and the test is started; after data are collected, a self-priming pump is started, a degreasing agent is sprayed, the sensor boxes are lifted by the aid of a coil trolley, and crude oil on the outer wall of the polyethylene-aluminum composite pipe is removed. According to built-in type acoustic emission test method for corrosion of the bottom plate of the storage tank, the acoustic emission sensors stretch into the storage tank and form an array with the sensors distributed on the outer wall of the storage tank and monitor the corrosion damage of the bottom plate of the storage tank jointly, and the corrosion damage of the bottom plate of the storage tank can be effectively evaluated.
Description
Technical field
The present invention relates to the method that storage tank is detected, be specifically related to storage tank bottom plate and corrode built-in acoustic emission detection method.
Background technology
Tradition acoustic emission tank bottom detection technique storage tank shell to be checked carries out passively listen sound being coupling in by calibrate AE sensor, and signal is transferred on external Acoustic radiating instrument by transmission cable and carries out host computer process data.Because the corrosion signal propagation path of storage tank bottom plate arrives storage tank shell through crude oil, then received by calibrate AE sensor, in signal, be mixed with a lot of noise signal.Simultaneously owing to being that in relatively limited environment, multi-path effect also has great impact to the received signal, therefore carries out accurately location to corrosion area in this case and causes great obstacle.Especially health monitoring is carried out to the damage of large-scale storage tank Corrosion of base plate, easily occur the problem that central area acoustic emission signal is faint, easily undetected.
Summary of the invention
The object of this invention is to provide storage tank bottom plate corrosion acoustic emission detection method, may there is for solving traditional acoustic emission tank bottom detection technique the problem that central area acoustic emission signal is faint, easily undetected in this storage tank bottom plate corrosion acoustic emission detection method.
The technical solution adopted for the present invention to solve the technical problems is: this storage tank bottom plate corrosion acoustic emission detection method utilizes built-in acoustic emission detection system to detect storage tank bottom plate corrosion, driven by motor active roll rotates, calibrate AE sensor and depthometer are transferred to tank bottom to detect, after detection, again calibrate AE sensor and depthometer are proposed storage tank, built-in acoustic emission detection system comprises motor, dish line car, straightener, oil removing mechanism, calibrate AE sensor, depthometer, motor is rack-mount, motor via reducer structure connects active roll, under oil removing mechanism is fixed on support, oil removing mechanism is positioned at the below of active roll, active roll is arranged on the bottom of straightener, dish line car is arranged on the side of straightener, the signal cable of outsourcing aluminium-plastic pipe is wrapped on the dish line roller of dish line car, signal cable top connects capture card, after aluminium-plastic pipe walks around the angle sheave of straightener, pass between the smoothing roll of straightener, again successively between active roll, pass in oil removing mechanism, signal cable end is by being connected to the two-way elbow of aluminium-plastic pipe, be connected with the calibrate AE sensor being positioned at sensor box, the opposite side of two-way elbow connects depthometer, oil removing mechanism has shower, and shower connects self-priming pump, concrete detection method is as follows:
One, installation process: first penetrate in aluminium-plastic pipe by data line, reserve connector lug, is then wrapped on dish line car by aluminium-plastic pipe; Aluminium-plastic pipe one is stretched in straightener, through oil removing mechanism, carries out preconditioning, change the position between smoothing roll by control hand wheel, clamping aluminium-plastic pipe tube wall; Finally install calibrate AE sensor and depthometer, be connected with signal cable by calibrate AE sensor, put into sensor box, be fixed, sensor box is connected with two-way elbow, and two-way elbow opposite side connects depthometer; Storage tank outer wall is near the position of base plate, and equal altitudes uniform encloses calibrate AE sensor;
Two, decentralization process: after device debugging, preparation starts to detect, switch on power, open built-in acoustic emission detection system, connect motor, active roll drives aluminium-plastic pipe descending, and sensor box starts to move down, by the reading of depthometer table, determine the perpendicular displacement of thrown in calibrate AE sensor; Tested by acoustical material feature matrix, determine horizontal level and the sensitivity of thrown in sensor, finally arrive precalculated position, start to detect;
Three, regain process: after data acquisition completes, unlatching self-priming pump, spray degreaser, by dish line car, sensor box is risen, and by the frizing of oil removing mechanism and the crude oil of cleaning oil removing removal aluminium-plastic pipe outer wall.
In such scheme, oil removing mechanism comprises urceolus, all there is outward flange at the two ends of urceolus, the lower port stationary annular shower of urceolus, be ejected on the aluminium-plastic pipe that passes from urceolus from the degreaser of shower ejection, hairbrush is distributed on outer tube inner wall, oil stripper is arranged on the bottom of urceolus, and hairbrush is between shower and oil stripper, and self-priming pump connects fuel reserve tank; Oil stripper by scraping oil box, O-ring seal, seal box, oil-scraping ring, locating sleeve, gland form, scraping oil box is the cylindrical body with open end, open end has outward flange, the box top of scraping oil box has center pit, and O-ring seal is buckled in the box top of scraping oil box by seal box, and O-ring seal is positioned at central hole, seal box also has center pit, locating sleeve is between gland and seal box, and there is oil-scraping ring at locating sleeve center, gland, scrape oil box outward flange, urceolus outward flange is bolted.
In such scheme, straightener is made up of cabinet, angle sheave, smoothing roll, governor motion, angle sheave is arranged on the upper end of cabinet, smoothing roll is that one in often pair of smoothing roll is fixed on cabinet, and another smoothing roll is connected with the control hand wheel being arranged on cabinet side to being arranged on below angle sheave.
The present invention has following beneficial effect:
1, calibrate AE sensor is deep in storage tank by the present invention, the sensor arranged with storage tank outer wall forms array, common monitoring storage tank bottom plate corrosion damage, add region overlay area, reduce external interference, improve the reliability of sensitivity and the monitoring detected, more effective evaluation storage tank bottom plate corrosion damage; Apply this storage tank acoustic emission detection sensor array method, health monitoring is carried out to the damage of large-scale storage tank Corrosion of base plate, solves the problem easily occurring that storage tank central area acoustic emission signal is faint, easily undetected.
2, in the present invention, oil removing mechanism is by degreaser oil removing, and two step oil removings of oil-scraping ring oil removing, remove crude oil, protective device; Degreaser oil removing is realized by the common cooperation of degreaser and hairbrush, and thoroughly, cleaning efficiency is high in cleaning.
3, the present invention drives active roll by motor and speed reducer structure, and two-wheeled coordinates, and drives aluminium-plastic pipe, realizes the automatic lifting of aluminium-plastic pipe, reduces manual operation, realizes robotization.
4, aligning, signal cable and calibrate AE sensor are transferred image data by the present invention, recovery, oil removing organically combine, calibrate AE sensor can directly be rendered to arbitrary position of tank bottom, gathers the storage tank bottom plate corrosion acoustic emission signal in this region; The calibrate AE sensor simultaneously can arranged outward with tank forms array, the corrosion damage of common monitoring storage tank bottom plate; By the oil that oil removing mechanism removing aluminium-plastic pipe tube wall is stained with, easy to detect, easy.
Accompanying drawing explanation
Fig. 1 is the front view of built-in acoustic emission detection system in the present invention;
Fig. 2 is the side view of built-in acoustic emission detection system in the present invention;
Fig. 3 is the vertical view of built-in acoustic emission detection system in the present invention;
Fig. 4 is the schematic diagram of governor motion in the present invention;
Fig. 5 is M-M sectional view in Fig. 4;
Fig. 6 is the schematic diagram of oil removing mechanism in the present invention;
Fig. 7 is F-F sectional view in Fig. 6;
Fig. 8 is the structural representation of oil stripper in the present invention;
Fig. 9 is the schematic diagram of active roll in the present invention.
In figure: 1 motor; 2 straighteners; 3 oil removing mechanisms; 4 calibrate AE sensors; 5 depthometers; 6 supports; 7 active rolls; 8 dish line cars; 9 dish line rollers; 10 urceolus; 11 showers; 12 hairbrush; 13 self-priming pumps; 14 fuel reserve tanks; 15 scrape oil box; 16 O-ring seals; 17 seal boxes; 18 oil-scraping rings; 19 locating sleeves; 20 glands; 21 cabinets; 22 angle sheaves; 23 control hand wheels; 24 smoothing rolls; 25 aluminium-plastic pipes; 26 sensor boxes; 27 fixtures; 28 valve seats.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated:
This storage tank bottom plate corrodes built-in acoustic emission detection method and utilizes built-in acoustic emission detection system to detect storage tank bottom plate corrosion, motor 1 drives active roll 7 to rotate, calibrate AE sensor 4 and depthometer 5 are transferred to tank bottom to detect, after detection, again calibrate AE sensor 4 and depthometer 5 are proposed storage tank.Composition graphs 1, Fig. 2, shown in Fig. 3, built-in acoustic emission detection system wherein comprises motor 1, dish line car 8, straightener 2, oil removing mechanism 3, calibrate AE sensor 4, depthometer 5, motor 1 is installed on the frame 6, three-phase cage asynchronous motor selected by motor 1, motor 1 connects active roll 7 by reducing gear, oil removing mechanism 3 is fixed on support 6 times, be positioned at the below of active roll 7, active roll 7 is arranged on the bottom of straightener 2, aluminium-plastic pipe 25 after aligning vertically enters in oil removing mechanism 3 after active roll 7, active roll 7 is consulted shown in Fig. 9, dish line car 8 is arranged on the side of straightener 2, the signal cable of outsourcing aluminium-plastic pipe 25 is wrapped on the dish line roller 9 of dish line car 8, dish line car 8 roller card on the frame 6, by the hand folding and unfolding realizing signal cable (also by motor belt motor Moving plate line car, realize the folding and unfolding of Electronic control signal cable), accelerate experiment progress, after aluminium-plastic pipe 25 walks around the angle sheave 22 of straightener 2, pass between the smoothing roll 24 of straightener 2, again successively between active roll 7, pass in oil removing mechanism 3, signal cable end is by being connected to the two-way elbow of aluminium-plastic pipe 25, be connected with the calibrate AE sensor 4 being positioned at sensor box 26, two-way elbow side connecting sensor box 26, this sensor box 26 is through technological processing for explosion protection feature, the opposite side of two-way elbow connects depthometer 5.The each parts transferred in the present invention in storage tank all need to adopt known technology to do technological processing for explosion protection feature.
The concrete detection method of the present invention is as follows:
One, installation process: first penetrated in aluminium-plastic pipe 25 by signal cable, reserve connector lug, is then wrapped on dish line car 8 by aluminium-plastic pipe 25; Aluminium-plastic pipe 25 1 is stretched in straightener 2, through oil removing mechanism 3, carries out preconditioning, change the position between smoothing roll 24 by control hand wheel 23, clamping aluminium-plastic pipe 25 tube wall; Finally install calibrate AE sensor 4 and depthometer 5, be connected with signal cable by calibrate AE sensor 4, put into sensor box 26, be fixed, sensor box 26 is connected with two-way elbow, and two-way elbow opposite side connects depthometer 5;
Two, decentralization process: after device debugging, preparation starts to detect, switch on power, open built-in acoustic emission detection system, connect motor 1, active roll 7 drives aluminium-plastic pipe 25 descending, sensor box 26 starts to move down, the reading shown by depthometer 5, determines the position of calibrate AE sensor 4, final arrival precalculated position, starts to detect;
Three, regain process: after data acquisition completes, unlatching self-priming pump 13, spray degreaser, by dish line car 8, sensor box 26 is risen, and by the frizing of oil removing mechanism 3 and the crude oil of cleaning brush oil removal aluminium-plastic pipe 25 outer wall.
Consult shown in Fig. 6, Fig. 7, oil removing mechanism 3 comprises urceolus 10, all there is outward flange at the two ends of urceolus 10, the upper port stationary annular shower 11 of urceolus 10, the perforate of shower 11 wall, the degreaser sprayed from shower 11 is ejected on the aluminium-plastic pipe 25 that passes from urceolus 10, to aluminium-plastic pipe 25 edible vegetable oil, hairbrush 12 is distributed on urceolus 10 inwall, and hairbrush 12 matches with shower 11, the aluminium-plastic pipe 25 having sprayed degreaser is brushed immediately, can effectively remove the oil that aluminium-plastic pipe 25 is stained with.Oil stripper is arranged on the bottom of urceolus 10, and hairbrush 12 is between shower 11 and oil stripper, and shower 11 connects self-priming pump 13, and self-priming pump 13 connects fuel reserve tank 14, and drip pump BSP-S series selected by self-priming pump 13; Consult Fig. 8, oil stripper by scraping oil box 15, O-ring seal 16, seal box 17, oil-scraping ring 18, locating sleeve 19, gland 20 form, scrape oil box 15 for having the cylindrical body of open end, open end has outward flange, the box top of scraping oil box 15 has center pit, O-ring seal 16 is buckled in the box top of scraping oil box 15 by seal box 17, O-ring seal 16 is positioned at central hole, seal box 17 also has center pit, locating sleeve 19 is between gland 20 and seal box 17, there is oil-scraping ring 18 at locating sleeve 19 center, gland 20, scrape oil box 15 outward flange, urceolus 10 outward flange is bolted.
After detection completes, aluminium-plastic pipe 25 is extracted out from storage tank, and outside wall surface is stained with crude oil, should recycle.Still be attached to the crude oil not easy cleaning of pipe outer wall after recycling, if do not processed, meeting polluting device, is not easy to transport and secondary uses, and corrosion device.So the present invention designs a set of oil removal plant, remove crude oil, protective device.Be divided into two step oil removings, one, oil-scraping ring 18 oil removing, its two, degreaser oil removing.Oil-scraping ring 18 oil removing belongs to first step oil removing, removes the outer most of crude oil of pipe and also reclaims, and by the cooperation of oil-scraping ring 18 and O-ring seal 16, removes the crude oil of pipe outer wall, prevents in access to plant.Degreaser oil removing realizes this operation mainly through the common cooperation of degreaser and hairbrush 12.Degreaser is by annular nozzle to center spray, and shower nozzle is arranged on inside annulus, is uniformly distributed.Degreaser is circulated by ebullator, uses continuously.
Straightener is made up of cabinet 21, angle sheave 22, smoothing roll 24, governor motion, angle sheave 22 is arranged on the upper end of cabinet 21, smoothing roll 24 is to being arranged on below angle sheave 22, one in often pair of smoothing roll 24 is fixed on cabinet 21, another smoothing roll 24 is connected with the control hand wheel 23 being arranged on cabinet 21 side, relies on the change of the angle of indent in the middle of two rollers to align aluminium-plastic pipe 25.In present embodiment, smoothing roll 24 has three right, and six smoothing rolls, 24 3 one rows, totally two rows, wherein a row is for fixing, and each smoothing roll 24 in another row is all connected with control hand wheel 23.Governor motion is consulted shown in Fig. 4, Fig. 5, governor motion is made up of valve seat 28, adjuster bar, fixture 27, control hand wheel 23, valve seat 28 is fixed on cabinet 21, fixture 27 is fixed on valve seat 28, and adjuster bar is threaded with fixture 27, adjuster bar through after valve seat 28 and control hand wheel 23 be fixed together, by straightener 2, rotary motion is become rectilinear motion, namely operation torque is become operation thrust, control hand wheel 23 rotates and drives adjuster bar motion, and smoothing roll 24 is moved.Can finely tune, change the trend of aluminium-plastic pipe 25, improve right and wrong degree.
Claims (3)
1. a storage tank bottom plate corrosion acoustic emission detection method, it is characterized in that: this storage tank bottom plate corrosion acoustic emission detection method utilizes built-in acoustic emission detection system to detect storage tank bottom plate corrosion, motor (1) drives active roll (7) to rotate, calibrate AE sensor (4) and depthometer (5) are transferred to tank bottom to detect, after detection, again calibrate AE sensor (4) and depthometer (5) are proposed storage tank, built-in acoustic emission detection system comprises motor (1), dish line car (8), straightener (2), oil removing mechanism (3), calibrate AE sensor (4), depthometer (5), motor (1) is arranged on support (6), motor (1) connects active roll (7) by reducing gear, under oil removing mechanism (3) is fixed on support (6), oil removing mechanism (3) is positioned at the below of active roll (7), active roll (7) is arranged on the bottom of straightener (2), dish line car (8) is arranged on the side of straightener (2), the signal cable of outsourcing aluminium-plastic pipe (25) is wrapped on the dish line roller (9) of dish line car (8), signal cable top connects capture card, after aluminium-plastic pipe (25) walks around the angle sheave (22) of straightener (2), pass between the smoothing roll (24) of straightener (2), again successively between active roll (7), oil removing mechanism passes in (3), signal cable end is by being connected to the two-way elbow of aluminium-plastic pipe (25), be connected with the calibrate AE sensor (4) being positioned at sensor box (26), the opposite side of two-way elbow connects depthometer (5), oil removing mechanism (3) has shower (11), and shower (11) connects self-priming pump (13), concrete detection method is as follows:
One, installation process: first penetrated by data line in aluminium-plastic pipe (25), reserve connector lug, is then wrapped on dish line car (8) by aluminium-plastic pipe (25); Aluminium-plastic pipe (25) one is stretched in straightener (2), through oil removing mechanism (3), carries out preconditioning, change the position between smoothing roll (24) by control hand wheel (23), clamping aluminium-plastic pipe (25) tube wall; Calibrate AE sensor (4) and depthometer (5) are finally installed, calibrate AE sensor (4) is connected with signal cable, puts into sensor box (26), be fixed, sensor box (26) is connected with two-way elbow, and two-way elbow opposite side connects depthometer (5); Storage tank outer wall is near the position of base plate, and equal altitudes uniform encloses calibrate AE sensor;
Two, decentralization process: after device debugging, preparation starts to detect, switch on power, open built-in acoustic emission detection system, connect motor (1), active roll (7) drives aluminium-plastic pipe (25) descending, sensor box (26) starts to move down, by the reading that depthometer (5) is shown, determine the perpendicular displacement of thrown in calibrate AE sensor (4), tested by acoustical material feature matrix, determine horizontal level and the sensitivity of thrown in sensor, final arrival precalculated position, starts to detect;
Three, regain process: after data acquisition completes, unlatching self-priming pump (13), spray degreaser, makes sensor box (26) rise by dish line car (8), and by the frizing of oil removing mechanism (3) and the crude oil of cleaning oil removing removal aluminium-plastic pipe (25) outer wall.
2. storage tank bottom plate corrosion acoustic emission detection method according to claim 1, it is characterized in that: described oil removing mechanism (3) comprises urceolus (10), all there is outward flange at the two ends of urceolus (10), the lower port stationary annular shower (11) of urceolus (10), the degreaser sprayed from shower (11) is ejected on the aluminium-plastic pipe (25) that passes from urceolus (10), hairbrush (12) is distributed on urceolus (10) inwall, oil stripper is arranged on the bottom of urceolus (10), hairbrush (12) is positioned between shower (11) and oil stripper, self-priming pump (13) connects fuel reserve tank (14), oil stripper is by scraping oil box (15), O-ring seal (16), seal box (17), oil-scraping ring (18), locating sleeve (19), gland (20) is formed, scrape oil box (15) for having the cylindrical body of open end, open end has outward flange, the box top of scraping oil box (15) has center pit, O-ring seal (16) is buckled in the box top of scraping oil box (17) by seal box (15), O-ring seal (16) is positioned at central hole, seal box (17) also has center pit, locating sleeve (19) is positioned between gland (20) and seal box (17), there is oil-scraping ring (18) at locating sleeve (19) center, gland (20), scrape oil box (15) outward flange, urceolus (10) outward flange is bolted.
3. storage tank bottom plate corrosion acoustic emission detection method according to claim 1, it is characterized in that: described straightener (2) is made up of cabinet (21), angle sheave (22), smoothing roll (24), governor motion, angle sheave (22) is arranged on the upper end of cabinet (21), smoothing roll (24) is to being arranged on angle sheave (22) below, one in often pair of smoothing roll (24) is fixed on cabinet (21), and another smoothing roll (24) is connected with the control hand wheel (23) being arranged on cabinet (21) side.
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| CN201510606528.8A CN105203641B (en) | 2015-09-22 | 2015-09-22 | Storage tank bottom plate corrodes built-in acoustic emission detection method |
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| CN201510606528.8A CN105203641B (en) | 2015-09-22 | 2015-09-22 | Storage tank bottom plate corrodes built-in acoustic emission detection method |
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| CN105203641A true CN105203641A (en) | 2015-12-30 |
| CN105203641B CN105203641B (en) | 2018-06-05 |
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| CN106770676A (en) * | 2016-12-13 | 2017-05-31 | 广东省特种设备检测研究院茂名检测院 | A kind of spherical tank acoustic emission detection method |
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| CN109374749A (en) * | 2018-11-13 | 2019-02-22 | 东北石油大学 | Delivery device is detected in storage tank based on acoustic emission |
| CN109738520A (en) * | 2019-01-04 | 2019-05-10 | 陈英锋 | A kind of new-type pipeline and container damage detection 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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| CN109374749A (en) * | 2018-11-13 | 2019-02-22 | 东北石油大学 | Delivery device is detected in storage tank based on acoustic emission |
| CN109374749B (en) * | 2018-11-13 | 2021-08-06 | 东北石油大学 | Detecting and throwing device in storage tank based on acoustic emission technology |
| 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 |
| CN109738520A (en) * | 2019-01-04 | 2019-05-10 | 陈英锋 | A kind of new-type pipeline and container damage detection device |
| CN109738520B (en) * | 2019-01-04 | 2021-04-06 | 义乌市思淇工业设计有限公司 | Pipeline and container damage detection device |
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| CN105203641B (en) | 2018-06-05 |
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