CN2729723Y - Instrument bottom of storage tank driven by DC motor for detecting leakage of magnet - Google Patents
Instrument bottom of storage tank driven by DC motor for detecting leakage of magnet Download PDFInfo
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- CN2729723Y CN2729723Y CN 200420063195 CN200420063195U CN2729723Y CN 2729723 Y CN2729723 Y CN 2729723Y CN 200420063195 CN200420063195 CN 200420063195 CN 200420063195 U CN200420063195 U CN 200420063195U CN 2729723 Y CN2729723 Y CN 2729723Y
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Abstract
The utility model discloses an instrument bottom of the storage tank driven by the DC motor for detecting the leakage of the magnet, which adopts the principle of the magnetic leakage detection to detect the tank bottom, comprising a notebook computer (1), a trolly frame (2), a data-collection module (3), a storage battery (4), a DC motor (5), a speed reducer (6), a driving wheel (7), a magnetic iron (8), wheels (9), a photoelectric pulse encoder (11) and a magnetic leakage sensor (12). Wherein, the magnetic iron (8) is arranged on the bottom of the trolly frame (2), and the magnetic leakage sensor (12) is arranged between the N polarity and the S polarity of the magnetic iron (8). The DC motor (5) drives the driving wheel (7), and the photoelectric pulse encoder (11) is arranged at the point of the driving wheel (7)to extract the signals of the rotary quantity of the driving wheel (7). The utility model enters the tank body integrally during working, the magnetic leakage sensor (12) obtains the magnetic leakage signals of the iron plate of the tank bottom, and the DC motor (5) drives the trolly to walk to collect the situation of the iron plate of the tank bottom dynamically. Because the magnetic leakage detecting method is applied, the areas covered by magnetic lines are big, and the efficiency is higher than the ultrasonic detector, and the utility model which is combined with the maneuver walk vehicle raises detecting efficiency.
Description
Technical field:
The utility model relates to a kind of device that adopts the Magnetic Flux Leakage Inspecting principle to detect storage tank bottom plate.
Background technology:
Whether the general at present ultrasonic method detection oil field storage tank base plate that adopts has potential crack and scar, has advantage of high precision though ultrasonic method detects, and detection efficiency is low, is not suitable for large tracts of land and detects.The leakage method Non-Destructive Testing is to judge by the leakage flux that overflow the metal surface that detection is magnetized whether defective exists, and leakage method detects principle as shown in Figure 1.A smooth surface flawless, after the ferrimagnet magnetization of inner zero defect or assorted folder thing, its magnetic line of force is the magnetic circuit by being made of ferromagnetic material in theory all, as shown in Figure 2: if there is defective, because ferromagnetic material is different with the magnetic permeability of fault location material, the magnetic resistance of fault location is big, in magnetic circuit, can be considered as barrier, then magnetic flux can distort at fault location, and the fractional distortion magnetic flux is a leakage flux, can be detected by probe 16.
The utility model content:
The purpose of this utility model just provides the high storage tank bottom plate pick-up unit of a kind of detection efficiency.The utility model is realized by following proposal: a kind of direct current motor driven storage tank bottom plate Magnetic Flux Leakage Inspecting instrument, it is by notebook 1, vehicle frame 2, data acquisition module 3, accumulator 4, d.c. motor 5, speed reduction unit 6, driving wheel 7, magnet 8, wheel 9, photoimpact scrambler 11 and leakage field sensor 12 are formed, notebook 1, data acquisition module 3, accumulator 4, d.c. motor 5 and speed reduction unit 6 are arranged on the vehicle frame 2, magnet 8 is arranged on the bottom of vehicle frame 2, leakage field sensor 12 is arranged between the N utmost point and the S utmost point of magnet 8, the output terminal of leakage field sensor 12 connects the input end of data acquisition module 3, the output terminal of data acquisition module 3 connects the data input pin of notebook 1, accumulator 4 provides power supply for d.c. motor 5, d.c. motor 5 drives speed reduction unit 6, the output terminal of speed reduction unit 6 connects driving wheel 7, driving wheel 7 is connected the power that motion is provided to it on the vehicle frame 2, four wheel 9 supporting frames 2, photoimpact scrambler 11 is arranged on driving wheel 7 places and extracts the signal that driving wheel 7 rotates the number of turns, and the output terminal of photoimpact scrambler 11 connects the data input pin of notebook 1.Integral body enters in the storage tank body during the utility model work, leakage field sensor 12 is obtained jar magnetic leakage signal of floor iron plate, and be uploaded to notebook 1, d.c. motor 5 drives the carriage walking that vehicle frame 2 grades are formed by driving wheel 7, thereby dynamically gather jar situation of floor iron plate, the distance of photoimpact scrambler 11 record carriage walkings carries out coordinate setting for the figure of the reflection jar firm and hard border of floor iron situation.Because it is big that leakage method detects the single pass area, and do not need coupling, efficient will be higher than ultrasonic method to detect, and combine with the drive unit that can walk automatically and more to have improved detection efficiency.The utlity model has advantages such as modern design, reliable operation.
Description of drawings:
Fig. 1 and Fig. 2 are Magnetic Flux Leakage Inspecting principle analysis synoptic diagram, and Fig. 3 is a structural representation of the present utility model, and Fig. 4 is the side view of Fig. 3, Fig. 5 be the A of Fig. 3 to view, Fig. 6 is the signal flow graph of data acquisition in the embodiment one.
Embodiment:
Embodiment one: specify present embodiment below in conjunction with Fig. 3 to Fig. 6.It is by notebook 1, vehicle frame 2, data acquisition module 3, accumulator 4, d.c. motor 5, speed reduction unit 6, driving wheel 7, magnet 8, wheel 9, photoimpact scrambler 11 and leakage field sensor 12 are formed, notebook 1, data acquisition module 3, accumulator 4, d.c. motor 5 and speed reduction unit 6 are arranged on the vehicle frame 2, magnet 8 is arranged on the bottom of vehicle frame 2, leakage field sensor 12 is arranged between the N utmost point and the S utmost point of magnet 8, the output terminal of leakage field sensor 12 connects the input end of data acquisition module 3, the output terminal of data acquisition module 3 connects the data input pin of notebook 1, accumulator 4 provides power supply for d.c. motor 5, d.c. motor 5 drives speed reduction unit 6, the output terminal of speed reduction unit 6 connects driving wheel 7, driving wheel 7 is connected the power that motion is provided to it on the vehicle frame 2, four wheel 9 supporting frames 2, photoimpact scrambler 11 is arranged on driving wheel 7 places and extracts the signal that driving wheel 7 rotates the number of turns, and the output terminal of photoimpact scrambler 11 connects the data input pin of notebook 1.Described leakage field sensor 12 both can be selected Hall element for use, also can select for use common solenoid to respond to magnetic leakage signal.
Claims (3)
1, a kind of direct current motor driven storage tank bottom plate Magnetic Flux Leakage Inspecting instrument, it is characterized in that it is by notebook (1), vehicle frame (2), data acquisition module (3), accumulator (4), d.c. motor (5), speed reduction unit (6), driving wheel (7), magnet (8), wheel (9), photoimpact scrambler (11) and leakage field sensor (12) are formed, notebook (1), data acquisition module (3), accumulator (4), d.c. motor (5) and speed reduction unit (6) are arranged on the vehicle frame (2), magnet (8) is arranged on the bottom of vehicle frame (2), leakage field sensor (12) is arranged between the N utmost point and the S utmost point of magnet (8), the output terminal of leakage field sensor (12) connects the input end of data acquisition module (3), the output terminal of data acquisition module (3) connects the data input pin of notebook (1), accumulator (4) provides power supply for d.c. motor (5), d.c. motor (5) drives speed reduction unit (6), the output terminal of speed reduction unit (6) connects driving wheel (7), driving wheel (7) is connected vehicle frame (2) and upward provides the power of motion to it, four wheels (9) supporting frames (2), photoimpact scrambler (11) is arranged on driving wheel (7) and locates to extract the signal that driving wheel (7) rotates the number of turns, and the output terminal of photoimpact scrambler (11) connects the data input pin of notebook (1).
2, direct current motor driven storage tank bottom plate Magnetic Flux Leakage Inspecting instrument according to claim 1 is characterized in that leakage field sensor (12) selects Hall element for use.
3, direct current motor driven storage tank bottom plate Magnetic Flux Leakage Inspecting instrument according to claim 1 is characterized in that leakage field sensor (12) selects solenoid for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063195 CN2729723Y (en) | 2004-07-30 | 2004-07-30 | Instrument bottom of storage tank driven by DC motor for detecting leakage of magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063195 CN2729723Y (en) | 2004-07-30 | 2004-07-30 | Instrument bottom of storage tank driven by DC motor for detecting leakage of magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2729723Y true CN2729723Y (en) | 2005-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063195 Expired - Lifetime CN2729723Y (en) | 2004-07-30 | 2004-07-30 | Instrument bottom of storage tank driven by DC motor for detecting leakage of magnet |
Country Status (1)
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| CN (1) | CN2729723Y (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427947C (en) * | 2006-06-16 | 2008-10-22 | 清华大学 | Large-area steel plate defect flux-leakage detection method |
| CN101592629B (en) * | 2009-07-02 | 2011-11-23 | 大庆石油学院 | Novel driving device for storage base plate magnetic leakage scanning detector |
| CN102590328A (en) * | 2012-02-14 | 2012-07-18 | 厦门大学 | Permanent magnetic and alternating current direct current composite magnetic flux leakage detecting method |
| CN102928505A (en) * | 2012-10-22 | 2013-02-13 | 重庆交通大学 | Portable magnetic metal fatigue detection method |
| CN103698390A (en) * | 2013-12-18 | 2014-04-02 | 浙江省特种设备检验研究院 | Defect and magnetic leakage detection device for underground oil storage tank |
| CN103712066A (en) * | 2013-12-20 | 2014-04-09 | 华中科技大学 | Outer magnetic flux leakage detection device for industrial pipeline in use |
| CN105203627A (en) * | 2015-10-26 | 2015-12-30 | 南京博克纳自动化系统有限公司 | Oil-gas storage tank bottom leakage magnetic flaw detector |
| CN105203628A (en) * | 2015-10-29 | 2015-12-30 | 南京化工特种设备检验检测研究所 | High-sensitivity magnetic leakage detector |
| CN105758931A (en) * | 2016-04-05 | 2016-07-13 | 杭州市特种设备检测研究院 | Floating type magnetic flux leakage detector |
| CN105823723A (en) * | 2016-05-18 | 2016-08-03 | 浙江省特种设备检验研究院 | Device and method for detecting corrosion circumferential magnetic flux leakage of inner surface of body of buried storage tank of filling station |
| CN108254433A (en) * | 2017-08-04 | 2018-07-06 | 西红柿科技（武汉）有限公司 | A kind of Novel storage tank bottom plate Magnetic Flux Leakage Testing Instrument |
| CN108982662A (en) * | 2018-06-23 | 2018-12-11 | 东北石油大学 | The automatic acoustics detector of large-scale storage tank Corrosion of base plate immersion |
| CN109580767A (en) * | 2019-01-25 | 2019-04-05 | 中国计量大学 | A kind of bearing device does not shut down Nondestructive detection with magnetic flux leakage system |
| CN111089896A (en) * | 2019-12-13 | 2020-05-01 | 清华大学 | Magnetic excitation isotropic defect contour imaging device and imaging method |
| CN111648342A (en) * | 2020-06-08 | 2020-09-11 | 江苏筑升土木工程科技有限公司 | Vehicle-mounted road base disease detection system |
| CN111678926A (en) * | 2020-06-16 | 2020-09-18 | 南京工业职业技术学院 | Tank wall bottom plate corrosion scanning drawing system |
| CN112478011A (en) * | 2020-11-16 | 2021-03-12 | 中国计量大学 | Wall-climbing robot with magnetic powder inspection function |
-
2004
- 2004-07-30 CN CN 200420063195 patent/CN2729723Y/en not_active Expired - Lifetime
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427947C (en) * | 2006-06-16 | 2008-10-22 | 清华大学 | Large-area steel plate defect flux-leakage detection method |
| CN101592629B (en) * | 2009-07-02 | 2011-11-23 | 大庆石油学院 | Novel driving device for storage base plate magnetic leakage scanning detector |
| CN102590328B (en) * | 2012-02-14 | 2015-01-21 | 厦门大学 | Permanent magnetic and alternating current direct current composite magnetic flux leakage detecting method |
| CN102590328A (en) * | 2012-02-14 | 2012-07-18 | 厦门大学 | Permanent magnetic and alternating current direct current composite magnetic flux leakage detecting method |
| CN102928505A (en) * | 2012-10-22 | 2013-02-13 | 重庆交通大学 | Portable magnetic metal fatigue detection method |
| CN102928505B (en) * | 2012-10-22 | 2015-05-20 | 重庆交通大学 | Portable magnetic metal fatigue detection method |
| CN103698390A (en) * | 2013-12-18 | 2014-04-02 | 浙江省特种设备检验研究院 | Defect and magnetic leakage detection device for underground oil storage tank |
| CN103712066A (en) * | 2013-12-20 | 2014-04-09 | 华中科技大学 | Outer magnetic flux leakage detection device for industrial pipeline in use |
| CN103712066B (en) * | 2013-12-20 | 2016-04-13 | 华中科技大学 | A kind ofly be suitable for the outer leakage magnetic detection device of the pipe of industrial pipeline |
| CN105203627A (en) * | 2015-10-26 | 2015-12-30 | 南京博克纳自动化系统有限公司 | Oil-gas storage tank bottom leakage magnetic flaw detector |
| CN105203627B (en) * | 2015-10-26 | 2018-05-01 | 南京博克纳自动化系统有限公司 | A kind of oil gas storage tank tank bottom leakage magnetic flow detector |
| CN105203628A (en) * | 2015-10-29 | 2015-12-30 | 南京化工特种设备检验检测研究所 | High-sensitivity magnetic leakage detector |
| CN105758931A (en) * | 2016-04-05 | 2016-07-13 | 杭州市特种设备检测研究院 | Floating type magnetic flux leakage detector |
| CN105758931B (en) * | 2016-04-05 | 2018-10-30 | 杭州市特种设备检测研究院 | A kind of floating type flux leakage detector |
| CN105823723A (en) * | 2016-05-18 | 2016-08-03 | 浙江省特种设备检验研究院 | Device and method for detecting corrosion circumferential magnetic flux leakage of inner surface of body of buried storage tank of filling station |
| CN105823723B (en) * | 2016-05-18 | 2020-04-17 | 浙江省特种设备检验研究院 | Circumferential magnetic flux leakage detection method for corrosion of inner surface of tank body of buried storage tank of gas station |
| CN108254433A (en) * | 2017-08-04 | 2018-07-06 | 西红柿科技（武汉）有限公司 | A kind of Novel storage tank bottom plate Magnetic Flux Leakage Testing Instrument |
| CN108254433B (en) * | 2017-08-04 | 2021-10-01 | 西红柿科技（武汉）有限公司 | Magnetic leakage detector for storage tank bottom plate |
| CN108982662A (en) * | 2018-06-23 | 2018-12-11 | 东北石油大学 | The automatic acoustics detector of large-scale storage tank Corrosion of base plate immersion |
| CN109580767A (en) * | 2019-01-25 | 2019-04-05 | 中国计量大学 | A kind of bearing device does not shut down Nondestructive detection with magnetic flux leakage system |
| CN111089896A (en) * | 2019-12-13 | 2020-05-01 | 清华大学 | Magnetic excitation isotropic defect contour imaging device and imaging method |
| CN111089896B (en) * | 2019-12-13 | 2021-12-14 | 清华大学 | Magnetic excitation isotropic defect contour imaging device and imaging method |
| CN111648342A (en) * | 2020-06-08 | 2020-09-11 | 江苏筑升土木工程科技有限公司 | Vehicle-mounted road base disease detection system |
| CN111678926A (en) * | 2020-06-16 | 2020-09-18 | 南京工业职业技术学院 | Tank wall bottom plate corrosion scanning drawing system |
| CN112478011A (en) * | 2020-11-16 | 2021-03-12 | 中国计量大学 | Wall-climbing robot with magnetic powder inspection function |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140730 Granted publication date: 20050928 |