CN105158344A - Built-in storage tank base plate corrosion acoustic-emission detection device - Google Patents
Built-in storage tank base plate corrosion acoustic-emission detection device Download PDFInfo
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- CN105158344A CN105158344A CN201510606525.4A CN201510606525A CN105158344A CN 105158344 A CN105158344 A CN 105158344A CN 201510606525 A CN201510606525 A CN 201510606525A CN 105158344 A CN105158344 A CN 105158344A
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- oil
- storage tank
- box
- plastic pipe
- urceolus
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Abstract
The invention relates to a built-in storage tank base plate corrosion acoustic-emission detection device. The storage tank base plate corrosion acoustic-emission detection device comprises a motor, a take-up spooler, a straightening machine, an oil removing mechanism, an acoustic-emission sensor and a depth meter, wherein the motor is connected with driving rollers through a speed reducing mechanism, the oil removing mechanism is fixed under a support and is located under the driving rollers, the driving rollers are installed at the lower portion of the straightening machine, the take-up spooler is arranged on the side of the straightening machine, a signal cable sheathed by an aluminum plastic pipe is wound around a take-up roller of the take-up spooler, and the starting end of the signal cable is connected with an acquisition card, the aluminum plastic pipe bypasses a guide wheel of the straightening machine, then penetrates through the position between straightening rollers of the straightening machine and further penetrates through the position between the driving rollers to stretch out of the oil removing mechanism. The tail end of the signal cable is connected with the acoustic-emission sensor located in a sensor box through a two-way elbow connected to the aluminum plastic pipe, and the other side of the two-way elbow is connected with the depth meter. The problems of weak acoustic-emission signals and missed detection easily occurred at the central region of a storage tank are solved by means of the built-in storage tank base plate corrosion acoustic-emission detection device.
Description
Technical field
The present invention relates to the device that storage tank is detected, be specifically related to storage tank bottom plate and corrode built-in acoustic emission detection system.
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 system, 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 system.
The technical solution adopted for the present invention to solve the technical problems is: this storage tank bottom plate corrosion 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.
In such scheme, oil removing mechanism comprises urceolus, all there is outward flange at the two ends of urceolus, the upper 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, and oil stripper is arranged on the bottom of urceolus, and hairbrush is between shower and oil stripper, shower connects self-priming pump, 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; Application storage tank acoustic emission detection sensor array method, carries out health monitoring 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, oil removing organically combines, calibrate AE sensor can render to a certain position of tank inside base plate, storage tank bottom plate etch state is jointly monitored with the sensor array coordinating the present invention to arrange at storage tank outer wall, by the oil that oil removing mechanism removing aluminium-plastic pipe tube wall is stained with, detect sensitive reliable, convenient, easy.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is side view of the present invention;
Fig. 3 is vertical view of 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:
Composition graphs 1, Fig. 2, shown in Fig. 3, this storage tank bottom plate corrosion 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 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, aluminium-plastic pipe 25 after aligning vertically enters in oil removing mechanism 3 after active roll 7, active roll 7 is arranged on the bottom of straightener 2, 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, signal cable top connects capture card, dish line car 8 roller card on the frame 6, by the hand folding and unfolding (also by motor belt motor Moving plate line car) realizing aluminium-plastic pipe 25, 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 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, and 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.Motor 1 drives active roll 7 to rotate, and calibrate AE sensor 4 and depthometer 5 is transferred to tank bottom and detects, again calibrate AE sensor 4 and depthometer 5 are proposed storage tank after detection.
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 lower port stationary annular shower 11 of urceolus 10, the perforate of spray tube 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.
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 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, adjuster bar, fixture, control hand wheel 23, valve seat is fixed on cabinet 21, fixture is fixed on valve seat, and adjuster bar is threaded with fixture, and adjuster bar is fixed together with control hand wheel 23 through after valve seat, 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.
This storage tank bottom plate corrodes built-in acoustic emission detection system and storage tank bottom plate is corroded to the method detected;
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; For coordinating the present invention, need storage tank outer wall near the position of base plate, the uniform circle calibrate AE sensor of equal altitudes.
Two, decentralization process: after device debugging, preparation starts to detect, switch on power, starter motor 1, active roll 7 drives aluminium-plastic pipe 25 descending, sensor box 26 starts to move down, 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 calibrate AE sensor, final arrival precalculated position, starts to detect;
Three, regain process: after data acquisition completes, open self-priming pump 13, spray degreaser, makes sensor by manual setter.
Claims (3)
1. a storage tank bottom plate corrodes built-in acoustic emission detection system, it is characterized in that: this storage tank bottom plate corrosion 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).
2. storage tank bottom plate according to claim 1 corrodes built-in acoustic emission detection system, it is characterized in that: 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 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, shower (11) connects self-priming pump (13), 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 (17), 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 according to claim 1 corrodes built-in acoustic emission detection system, it is characterized in that: described 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 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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| Application Number | Priority Date | Filing Date | Title |
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| CN201510606525.4A CN105158344B (en) | 2015-09-22 | 2015-09-22 | Storage tank bottom plate corrodes built-in acoustic emission detection system |
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| CN201510606525.4A CN105158344B (en) | 2015-09-22 | 2015-09-22 | Storage tank bottom plate corrodes built-in acoustic emission detection system |
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| CN105158344A true CN105158344A (en) | 2015-12-16 |
| CN105158344B CN105158344B (en) | 2018-03-30 |
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Cited By (3)
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| CN109307712A (en) * | 2017-11-16 | 2019-02-05 | 中国石油化工股份有限公司 | The storage tank bottom plate universe detection method of main passive sound fusion |
| CN109307715A (en) * | 2017-11-16 | 2019-02-05 | 中国石油化工股份有限公司 | The passive sound fusion detection method of storage tank bottom plate master |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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| CN105158344B (en) | 2018-03-30 |
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Inventor after: Zhang Ying Inventor after: Qiu Feng Inventor after: Cong Rui Inventor after: Chen Xiaolong Inventor after: Zhang Wei Inventor after: Li Yue Inventor before: Zhang Ying Inventor before: Qiu Feng Inventor before: Dai Guang Inventor before: Huang Yuanhang Inventor before: Liang Kun Inventor before: Zou Shuo |
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Effective date of registration: 20191217 Address after: 314200 rolling wheel Industrial Park, Pinghu, Zhejiang, Jiaxing Patentee after: Pinghu xifengda metal products Co., Ltd Address before: 163319 No. 199, development road, hi tech Development Zone, Heilongjiang, Daqing Patentee before: Northeast Petroleum University |
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