CN105674922B - A kind of tank interior flaw size detection method and device - Google Patents
A kind of tank interior flaw size detection method and device Download PDFInfo
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- CN105674922B CN105674922B CN201610090811.4A CN201610090811A CN105674922B CN 105674922 B CN105674922 B CN 105674922B CN 201610090811 A CN201610090811 A CN 201610090811A CN 105674922 B CN105674922 B CN 105674922B
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- metal
- size
- mariages
- tank body
- size detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
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- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The embodiment of the invention discloses a kind of tank interior flaw size detection method and device, including：X-ray emission machine and digital imaging plate are separately positioned on to the both sides of tank body；Size detection component is fixed on the tank body and is arranged between the tank body and the digital imagery plate；The detection image of metal mariages in internal flaw and size detection component is obtained by the digital imagery plate；The detection image of acquisition is imported in mobile workstation, the distance between the wire being mutually parallel in the metal mariages in detection image is obtained；Distance between the wire being mutually parallel in the metal mariages in distance and the detection image between metal mariages in practice is compared, obtains proportionate relationship；According to the proportionate relationship, the size of internal flaw is obtained.This method and device can obtain the size of equipment internal flaw, by providing the specific data of defect, provide foundation for judging result, it is ensured that accurate to defect dipoles present in equipment.
Description
Technical field
The present invention relates to size measurement technique fields, more particularly to a kind of tank interior flaw size detection method and dress
It sets.
Background technology
As national electricity consumption is increasing；Defeated, field of power transformation popularization；The expansion of electric system installed capacity
In the case of, the operation and resident living that power grid is reliable, stable are closely bound up.Therefore, power grid whether can normal operation to it is defeated, match
The O＆M maintenance of electricity has very high requirement.
In recent years, with the fast development of non-destructive testing technology, X-ray real time imagery and non-destructive testing technology are in electric power row
There is unique advantage in the fields such as industry, national defense and military, aerospace, safety check traffic.Because it can be in not detaching equipment, do not have a power failure
In the case of intuitively find out whether equipment abnormal, whether there is defect, and X-ray is with its exclusive feature in power industry
Non-destructive testing flourishes.
By X-ray detection, detect to need the position for further determining that defect, very with the presence or absence of after defect in equipment
Foundation is provided for judging result, it is ensured that by providing the specific data of defect to the size for being defect to being lacked present in equipment
Accuracy of judgement is fallen into, it is convenient to take appropriate measures to equipment.
Invention content
A kind of tank interior flaw size detection method and device are provided in the embodiment of the present invention, by calculating defect
Size provides foundation and support compared with testing result pair for the specific location of defect.
In order to solve the above-mentioned technical problem, the embodiment of the invention discloses following technical solutions：
An embodiment of the present invention provides a kind of tank interior flaw size detection methods, including：
X-ray emission machine and digital imaging plate are separately positioned on to the both sides of tank body, the internal flaw of the tank body and institute
Digital imagery plate is stated in the radiation range that the radiographic source of the X-ray emission machine emits；
Size detection component is fixed on the tank body and is arranged between the tank body and the digital imagery plate,
The size detection component is in the radiation range that the radiographic source of the X-ray emission machine emits；
The X-ray emission machine is opened, the radiographic source emits X-ray to the tank body of face；
The detection image of metal mariages in internal flaw and size detection component is obtained by the digital imagery plate；
The detection image of acquisition is imported in mobile workstation, is obtained mutually flat in the metal mariages in detection image
Distance between capable wire；
By what is be mutually parallel in the metal mariages in the distance and the detection image between metal mariages in practice
Distance between wire is compared, and obtains proportionate relationship；
According to the proportionate relationship, the size of internal flaw is obtained.
Preferably, according to the proportionate relationship, the size of internal flaw is obtained, including：
Measure the corresponding imaging size L of internal flaw described in detection image3；
Measure the first distance S between the internal flaw one end and radiographic source closer apart from radiographic source1；
Measure second distance S of the internal flaw between radiographic source one end farther out and radiographic source2；
Inquire and obtain the focal length S of the X-ray emission machine3；
According to the imaging size L3, the first distance S1, second distance S2With focal length S3, obtain the ruler of the internal flaw
Very little L：
Preferably, the center of the radiographic source, metal mariages, internal flaw and digital imaging plate is on the same line.
A kind of tank interior flaw size detection device, including：Size detection component and by X-ray emission machine, number at
As the X-ray non-destructive testing component that plate and mobile workstation form, tank body described in the radiographic source face of the X-ray emission machine
Internal flaw, the X-ray emission machine and digital imaging plate are separately positioned on the both sides of tank body, the size detection component setting
Between the tank body and the digital imagery plate；Wherein,
The size detection component include groups of metal filaments by being mutually parallel at metal mariages and fixing sleeve, insulating layer
With one group of fixing piece, the metal mariages is fixed in the fixing sleeve, and the fixing sleeve is uniformly laterally arranged described
On insulating layer, the fixing piece is separately positioned on the both ends of the insulating layer.
Preferably, the distance between wire being mutually parallel in the metal mariages is 20cm.
Preferably, the metal mariages includes copper wire or aluminium wire.
Preferably, the insulating layer includes insulation canvas.
Preferably, the fixing piece includes velcro or fixing buckle.
By above technical scheme as it can be seen that a kind of tank interior flaw size detection method provided in an embodiment of the present invention, packet
It includes：X-ray emission machine and digital imaging plate are separately positioned on to the both sides of tank body, the internal flaw of the tank body and the number
Imaging plate is in the radiation range that the radiographic source of the X-ray emission machine emits；Size detection component is fixed on the tank body
It goes up and is arranged between the tank body and the digital imagery plate, size detection component the penetrating in the X-ray emission machine
In the radiation range of ray emission；The X-ray emission machine is opened, the radiographic source emits X-ray to the tank body of face；
The detection image of metal mariages in internal flaw and size detection component is obtained by the digital imagery plate；By the detection figure of acquisition
As importing in mobile workstation, the distance between the wire being mutually parallel in the metal mariages in detection image is obtained；It will
Between the wire being mutually parallel in the metal mariages in the distance and the detection image between metal mariages in practice
Distance is compared, and obtains proportionate relationship；According to the proportionate relationship, the size of internal flaw is obtained.
A kind of tank interior flaw size detection device, including：Size detection component and by X-ray emission machine, number at
As the X-ray non-destructive testing component that plate and mobile workstation form, tank body described in the radiographic source face of the X-ray emission machine
Internal flaw, the X-ray emission machine and digital imaging plate are separately positioned on the both sides of tank body, the size detection component setting
Between the tank body and the digital imagery plate；Wherein, the size detection component includes the groups of metal filaments by being mutually parallel
At metal mariages and fixing sleeve, insulating layer and one group of fixing piece, the metal mariages is fixed in the fixing sleeve,
The fixing sleeve is uniformly laterally arranged on the insulating layer, and the fixing piece is separately positioned on the both ends of the insulating layer.
Tank interior flaw size detection device and detection method provided in an embodiment of the present invention, can obtain inside equipment
The size of defect provides foundation, it is ensured that sentence to defect present in equipment by providing the specific data of defect for judging result
It is disconnected accurate, it is convenient to take appropriate measures to equipment.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of tank interior flaw size detection method flow diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of tank interior flaw size structure of the detecting device schematic diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of measuring component of size and tank body provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of measuring component of size provided in an embodiment of the present invention；
Fig. 1-Fig. 4, symbolic indication：
1- fixing sleeves, 2- insulating layers, 3- metal mariages, 4- fixing pieces, 5- tank bodies, 6- internal flaws, 7- radiographic sources, 8- numbers
Word imaging plate, 9- size detection components.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution in the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work, should all belong to protection of the present invention
Range.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction with the accompanying drawings with embodiment to this
Invention is described in further detail.
First aspect
Referring to Fig. 1, Fig. 1 is a kind of tank interior flaw size detection method flow signal provided in an embodiment of the present invention
Figure；The tank interior flaw size detection method, specifically includes following steps：
Step S101：X-ray emission machine and digital imaging plate 8 are separately positioned on to the both sides of tank body 5, the tank body 5
Internal flaw 6 and the digital imagery plate 8 are in the radiation range that the radiographic source 7 of the X-ray emission machine emits.
Specifically, the radiographic source 7 of X-ray emission machine emits X-ray, X-ray penetrates the tank body 5, detects the tank body 5
It is internal whether defective, or understand the approximate location of defect, internal flaw 6 is arranged to the range that can be irradiated in institute's emission source
Within, the image formed after irradiation will be presented on the digital imagery plate 8.
Step S102：Size detection component 9 is fixed on the tank body 5 and is arranged in the tank body 5 and the number
Between imaging plate 8, the size detection component 9 is in the radiation range that the radiographic source 7 of the X-ray emission machine emits.
Specifically, the size for calculating the internal flaw 6 is detected using size detection component 9, it can further internally
The concrete condition of portion's defect 6 is understood and is judged that the size detection component 9 is fixed on the tank body 5, is prevented in number
When being imaged on imaging plate 8, since position is not fixed the case where causing fogging image or other influences final result.
Step S103：The X-ray emission machine is opened, the radiographic source 7 emits X-ray to the tank body 5 of face.
Step S104：The inspection of metal mariages 3 in internal flaw 6 and size detection component 9 is obtained by the digital imagery plate 8
Altimetric image.
Specifically, the radiographic source 7 of X-ray emission machine, metal mariages 3, internal flaw 6 and digital imaging plate 8 center exist
On same straight line, it is ensured that complete detection can be presented in the internal flaw 6 and metal mariages 3 on the digital imagery plate 8
Image.
Step S105：The detection image of acquisition is imported in mobile workstation, the metal obtained in detection image is double
Distance between the wire being mutually parallel in silk 3.
Step S106：It will be in the metal mariages 3 in the distance and the detection image between metal mariages 3 in practice
Distance between the wire being mutually parallel is compared, and obtains proportionate relationship.
Specifically, the distance between heretofore described metal mariages 3 can be set in advance, metal described in the present embodiment is double
The distance between the wire being mutually parallel in silk 3 is set as 20cm, acquisition about 3 detection image of metal mariages
In, measure the distance L of the pixel between the wire being mutually parallel4, the two is in the presence of determining proportionate relationship.
Step S107：According to the proportionate relationship, the size of internal flaw 6 is obtained.
Specifically, as shown in Figure 1, radiographic source 7 defines internal to the direction that the direction of digital imagery plate 8 is vertical paper
The actual size of defect 6 is L；The corresponding imaging size L of internal flaw 6 described in detection image3；Internal flaw 6 is apart from ray
The first distance S between the closer one end in source 7 and radiographic source 71；Internal flaw 6 is apart from the one end farther out of radiographic source 7 and radiographic source
Second distance S between 72。
The focal length S of the X-ray emission machine can be inquired and obtained in the specification that X-ray emission machine is equipped with3。
Radiographic source 7 penetrates the tank body 5, two of which ray P1、P2Cross the both ends of the internal flaw 6, wherein P1It crosses and leans on
One end of close-range shot line source 7, P2Cross one end far from radiographic source 7.It crosses close to one end of radiographic source 7 in axial direction, with P2Intersection,
Line segment L can be used1Indicate, similarly, one end excessively far from radiographic source 7 in axial direction, with P1Intersection, can use line segment L2It indicates, it is described
Line segment L2Angle between L, is indicated with θ.
Had according to geometrical relationship：
Equally, had according to geometrical relationship：
Composite type (1) is obtained to (4)
It can be obtained the size of internal flaw 6 by formula (5), judgment basis further provided for the determination of internal flaw 6.
On the other hand
Corresponding with a kind of tank interior flaw size detection method provided in an embodiment of the present invention, the embodiment of the present invention is also
Provide a kind of tank interior flaw size detection device.
Referring to Fig. 2 and Fig. 3, Fig. 2 is a kind of tank interior flaw size structure of the detecting device provided in an embodiment of the present invention
Schematic diagram；Fig. 3 is a kind of structural schematic diagram of measuring component of size and tank body provided in an embodiment of the present invention；The embodiment of the present invention
A kind of tank interior flaw size detection device provided, including：Size detection component 9 and by X-ray emission machine, digital imagery
The X-ray non-destructive testing component of plate 8 and mobile workstation composition, tank body 5 described in 7 face of radiographic source of the X-ray emission machine
Internal flaw 6, the X-ray emission machine and digital imaging plate 8 are separately positioned on the both sides of tank body 5, the size detection group
Part 9 is set between the tank body 5 and the digital imagery plate 8.
It is a kind of structural schematic diagram of measuring component of size provided in an embodiment of the present invention referring to Fig. 4；The size detection
Component 9 include groups of metal filaments by being mutually parallel at metal mariages 3 and fixing sleeve 1, insulating layer 2 and one group of fixing piece 4, institute
It states metal mariages 3 to be fixed in the fixing sleeve 1, the fixing sleeve 1 is uniformly laterally arranged on the insulating layer 2, institute
State the both ends that fixing piece 4 is separately positioned on the insulating layer 2.
The wire being mutually parallel in metal mariages described in the embodiment of the present invention 3 is copper wire or aluminium wire, between wire
Distance be 20cm, copper, aluminium are materials common in power industry, theoretically other metals can also, especially lead, mercury etc. pair
The insensitive metal material of X-ray, but may be inside radical occlusion device structure, therefore selected in the embodiment of the present invention pair
Internal structure is without the copper wire influenced or influence is smaller.
Mariages fixing sleeve 1 uses ambroin, is adhesive on the insulating layer 2 by insulation, in the embodiment of the present invention
The insulating layer 2 is insulation canvas.Hard canvas plays the role of bearing metal mariages 3, is not influencing X-ray non-destructive testing
While, also act good insulation effect.
Fixation kit is housed, the fixation kit is adapted to the tank body 5 of various sizes below hard canvas.The present invention is real
It includes velcro or fixing buckle to apply fixing piece 4 described in example.
Above-mentioned fixed form is one such realization method, but should not be as the scope of the present invention
Limitation, those skilled in the art may be selected other fixed forms according to actual conditions, should all fall into the guarantor of the present invention
Within the scope of shield.
Detection method and device provided in an embodiment of the present invention are not only directed to the tank body 5, are equally applicable to it
The device or equipment of his internal existing defects, keep the application range of the method and device wider.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above is only the specific implementation mode of the present invention, is made skilled artisans appreciate that or realizing this hair
It is bright.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (6)
1. a kind of tank interior flaw size detection method, which is characterized in that including：
X-ray emission machine and digital imaging plate (8) are separately positioned on to the both sides of tank body (5), the internal flaw of the tank body (5)
(6) and the digital imagery plate (8) is in the radiation range that the radiographic source (7) of the X-ray emission machine emits；
Size detection component (9) is fixed on the tank body (5) and is arranged in the tank body (5) and the digital imagery plate
(8) between, the size detection component (9) is in the radiation range that the radiographic source (7) emits；
The X-ray emission machine is opened, the radiographic source (7) emits X-ray to the tank body (5) of face；
The detection figure of metal mariages (3) in internal flaw (6) and size detection component (9) is obtained by the digital imagery plate (8)
Picture；
The detection image of acquisition is imported in mobile workstation, is obtained mutually flat in the metal mariages (3) in detection image
Distance between capable wire；
It will be mutually parallel in the metal mariages (3) in distance and the detection image between metal mariages (3) in practice
Wire between distance compared, obtain proportionate relationship；
According to the proportionate relationship, the size of internal flaw (6) is obtained.
2. tank interior flaw size detection method according to claim 1, which is characterized in that closed according to the ratio
System, obtains the size of internal flaw (6), including：
Measure the corresponding imaging size L of internal flaw (6) described in detection image3；
Measure the first distance S between internal flaw (6) one end and radiographic source (7) closer apart from radiographic source (7)1；
Measure second distance S of the internal flaw (6) between radiographic source (7) one end farther out and radiographic source (7)2；
Inquire and obtain the focal length S of the X-ray emission machine3；
According to the imaging size L3, the first distance S1, second distance S2With focal length S3, obtain the size L of the internal flaw (6)：
3. tank interior flaw size detection method according to claim 1, which is characterized in that by size detection component
(9) it is fixed on the tank body (5) and is arranged between the tank body (5) and the digital imagery plate (8), the size inspection
Component (9) is surveyed in the radiation range that the radiographic source (7) emits, including：
The radiographic source (7), metal mariages (3), internal flaw (6) and digital imaging plate (8) center on the same line.
4. a kind of tank interior flaw size detection device, which is characterized in that including：It size detection component (9) and is sent out by X-ray
Penetrate the X-ray non-destructive testing component of machine, digital imagery plate (8) and mobile workstation composition, the radiographic source of the X-ray emission machine
(7) internal flaw (6) of tank body described in face (5), the X-ray emission machine and digital imaging plate (8) are separately positioned on tank body
(5) both sides, the size detection component (9) are set between the tank body (5) and the digital imagery plate (8)；Wherein,
The size detection component (9) include groups of metal filaments by being mutually parallel at metal mariages (3) and fixing sleeve (1),
Insulating layer (2) and one group of fixing piece (4), the metal mariages (3) are fixed in the fixing sleeve (1), the fixing sleeve
(1) it is uniformly laterally arranged on the insulating layer (2), the fixing piece (4) is separately positioned on the both ends of the insulating layer (2)；
The distance between wire being mutually parallel in the metal mariages (3) is 20cm, and the metal mariages (3) includes copper wire
Or aluminium wire.
5. tank interior flaw size detection device according to claim 4, which is characterized in that insulating layer (2) packet
Include insulation canvas.
6. tank interior flaw size detection device according to claim 4, which is characterized in that fixing piece (4) packet
Include velcro or fixing buckle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610090811.4A CN105674922B (en) | 2016-02-18 | 2016-02-18 | A kind of tank interior flaw size detection method and device |
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| CN201610090811.4A CN105674922B (en) | 2016-02-18 | 2016-02-18 | A kind of tank interior flaw size detection method and device |
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| CN105674922B true CN105674922B (en) | 2018-09-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106706678B (en) * | 2016-11-22 | 2019-08-13 | 云南电网有限责任公司电力科学研究院 | A kind of detection power switch X-ray image quality determination method |
| CN108168475B (en) * | 2017-12-18 | 2020-07-21 | 中国航发贵州黎阳航空动力有限公司 | Method for measuring special-shaped angle of special-shaped air film hole of flame tube of conveyor |
| CN112525930A (en) * | 2020-12-08 | 2021-03-19 | 中国工程物理研究院材料研究所 | Defect measuring device and method based on X-ray real-time imaging |
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| CN205449002U (en) * | 2016-02-18 | 2016-08-10 | 云南电网有限责任公司电力科学研究院 | Jar body internal defect size detection device |
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| JP2001027788A (en) * | 1999-07-14 | 2001-01-30 | Nitto Denko Corp | Tacky adhesive sheet for x-ray radiography |
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| DE19903183A1 (en) * | 1999-01-27 | 2000-08-10 | Mikrowellen Technologie Und Se | High frequency distance measuring device, especially a proximity measuring device or proximity switch, comprises a sensor having a hollow conductor antenna with an open end closed by a damping element |
| CN201508150U (en) * | 2009-10-14 | 2010-06-16 | 国营红阳机械厂 | X-ray internal defect accurate location scale |
| CN102508133A (en) * | 2011-11-22 | 2012-06-20 | 云南电力试验研究院（集团）有限公司电力研究院 | Method and device for detecting power insulating material under irradiation of X rays |
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