CN206420815U - A kind of AC magnetic field probe checked suitable for welded seam area - Google Patents
A kind of AC magnetic field probe checked suitable for welded seam area Download PDFInfo
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- CN206420815U CN206420815U CN201621466523.6U CN201621466523U CN206420815U CN 206420815 U CN206420815 U CN 206420815U CN 201621466523 U CN201621466523 U CN 201621466523U CN 206420815 U CN206420815 U CN 206420815U
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- magnetic field
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- flexible plastic
- shaped silicon
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Abstract
A kind of AC magnetic field probe checked suitable for welded seam area, including sensor, back-shaped silicon steel sheet, flexible plastic-type material, back-shaped silicon steel sheet constitutes a hollow structure with flexible plastic-type material, and sensor is located on flexible plastic-type material, enamel-covered wire is wound on back-shaped silicon steel sheet, and on a sensor around enamel-covered wire, sensor has multiple；Sensor, back-shaped silicon steel sheet, enamel-covered wire, flexible plastic-type material collectively constitute AC magnetic field unit module, one laterally disposed AC magnetic field unit module is arranged within plastics involucrum with some AC magnetic field unit modules placed vertically, the AC magnetic field detection probe of weld metal zone is constituted, wherein the AC magnetic field unit mould placed vertically should be wider than weld metal zone.
Description
Technical field
The technology belongs to magnet field probe field, and in particular to a kind of AC magnetic field probe checked suitable for welded seam area.
Background technology
The various ponds of nuclear power system, especially Spent Fuel Pool, are as storage and cooling fuel assembly and burst slug
Component, and fuel assembly is checked, repair, transport etc. underwater operation place.Pond clad can is generally adopted by 3
What the modes such as the stainless steel plate butt welding and L-type fillet welding of the certain size specification of~5mm thickness were spliced.As pressure-bearing boundary,
Simultaneously in boric acid environment, weld metal zone easily produces local corrosion and the stress corrosion cracking (SCC) therefore produced.
The two methods of the infiltration and ray that check before main this game at this stage using non-automated of clad can weld seam, this two kinds
State under method works for cladding plate pressure-bearing (water filling) is difficult to actual detection, while pond is put under environment in height,
Therefore the inspection method of exploitation automation is very necessary.
Alternative current field measurement (ACFM--Alternating Current Field Measurement) technology is in recent years
A kind of electromagnet non-destructive testing technology risen.When being connected with the excitation gauze of alternating current close to tested test specimen, by alternation
The alternating magnetic field that electric field is produced can induce electric current in surface of test piece, in the presence of not having defect in test specimen, the electric current on its surface
It is equally distributed, electric current line is parallel to each other, with the presence of a uniform magnetic field.If there is defect, magnetic field is at Defect Edge
Produce convergence and deflect, the Distribution of Magnetic Field of surface of test piece can be distorted.By measuring the change of magnetic field amount, carry out analyzing defect
Position, size and shape.
Realize weld seam longitudinal direction (weld seam axial direction) and weld seam laterally (with weld seam axial direction using a kind of collection modules in the project
Parallel magnetic field excitation vertically), so as to realize the inspection of the transverse and longitudinal crackle for weld metal zone and weld edge area.
Utility model content
The purpose of this utility model is：A kind of AC magnetic field probe checked suitable for welded seam area is provided, reached pair
In the detection of the horizontal and vertical crackle of welded seam area.
The technical solution of the utility model is as follows：A kind of AC magnetic field probe checked suitable for welded seam area, including pass
Sensor, back-shaped silicon steel sheet, flexible plastic-type material, back-shaped silicon steel sheet constitute a hollow structure with flexible plastic-type material, and sense
Device is located on flexible plastic-type material；Sensor, back-shaped silicon steel sheet, flexible plastic-type material collectively constitute AC magnetic field unit module,
One laterally disposed AC magnetic field unit module is arranged on plastics involucrum with some AC magnetic field unit modules placed vertically
Within, constitute the AC magnetic field detection probe of weld metal zone.
The sensor has multiple.
The AC magnetic field unit mould placed vertically should be wider than weld metal zone.
Enamel-covered wire is wound on the back-shaped silicon steel sheet.
Around enamel-covered wire on the sensor.
Remarkable result of the present utility model is：
1) the transversely arranged module of silicon steel sheet can produce the horizontally-parallel magnetic field across weld seam, for vertical parallel to weld seam
To crackle can realize good detection；
2) module of silicon steel sheet longitudinal arrangement can produce the parallel magnetic field parallel to weld seam longitudinal direction, for vertical perpendicular to weld seam
To crackle can realize good detection, using multimode splicing can ensure for the good of different zones position defect detection
Good positioning analysis, while can be needed according to actual detection come local magnetic density.
3) the densely covered arrangement of sensor assembly can realize the good covering for detection zone；
4) flexible plastic structure can realize the good fit for sensor and welded seam area；
Two kinds of the integrated of module can realize weld edge detection integrated with the defect of Weld pipe mill.
Brief description of the drawings
Fig. 1 is the AC magnetic field probe schematic diagram described in the utility model checked suitable for welded seam area；
Fig. 2 is Fig. 1 AA views
Fig. 3 is the AC magnetic field probe transverse and longitudinal scanning schematic diagram described in the utility model checked suitable for welded seam area
In figure：1 parallel magnetic field produced, 2 sensors, 3 back-shaped silicon steel sheets, 4 enamel-covered wires, 5 flexible plastic-type materials, 6 weld seams
Area, 7 laterally check that module, 8 longitudinal directions check module, 9 plastics involucrums
Embodiment
A kind of AC magnetic field probe checked suitable for welded seam area, including sensor 2, back-shaped silicon steel sheet 3, flexible plastic
Material 5, as shown in Fig. 2 back-shaped silicon steel sheet 3 constitutes a hollow structure with flexible plastic-type material 5, and sensor 2 is located at flexibility
On plastic material 5, enamel-covered wire 4 is wound on back-shaped silicon steel sheet 3, and around enamel-covered wire 4 on sensor 2, sensor 2 is shared more
It is individual；Sensor 2, back-shaped silicon steel sheet 3, enamel-covered wire 4, flexible plastic-type material 5 collectively constitute AC magnetic field unit module, such as Fig. 3 institutes
Show, a laterally disposed AC magnetic field unit module is arranged on plastics bag with some AC magnetic field unit modules placed vertically
Within shell 9, the AC magnetic field detection probe of weld metal zone 6 is constituted, wherein the AC magnetic field unit mould placed vertically should be wider than weld seam
Area 6.
Claims (5)
1. a kind of AC magnetic field probe checked suitable for welded seam area, it is characterised in that：Including sensor (2), back-shaped silicon steel
Piece (3), flexible plastic-type material (5), back-shaped silicon steel sheet (3) and flexible plastic-type material (5) one hollow structure of composition, and sensor
(2) it is located on flexible plastic-type material (5)；Sensor (2), back-shaped silicon steel sheet (3), flexible plastic-type material (5) collectively constitute exchange
Magnetic field units module, a laterally disposed AC magnetic field unit module is pacified with some AC magnetic field unit modules placed vertically
Within plastics involucrum (9), the AC magnetic field detection probe of weld metal zone (6) is constituted.
2. a kind of AC magnetic field probe checked suitable for welded seam area according to claim 1, it is characterised in that：It is described
Sensor (2) is shared multiple.
3. a kind of AC magnetic field probe checked suitable for welded seam area according to claim 1, it is characterised in that：It is described
The AC magnetic field unit mould placed vertically should be wider than weld metal zone (6).
4. a kind of AC magnetic field probe checked suitable for welded seam area according to claim 1, it is characterised in that：It is described
Enamel-covered wire (4) is wound on back-shaped silicon steel sheet (3).
5. a kind of AC magnetic field probe checked suitable for welded seam area according to claim 1, it is characterised in that：It is described
Around enamel-covered wire (4) on sensor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466523.6U CN206420815U (en) | 2016-12-29 | 2016-12-29 | A kind of AC magnetic field probe checked suitable for welded seam area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466523.6U CN206420815U (en) | 2016-12-29 | 2016-12-29 | A kind of AC magnetic field probe checked suitable for welded seam area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206420815U true CN206420815U (en) | 2017-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621466523.6U Active CN206420815U (en) | 2016-12-29 | 2016-12-29 | A kind of AC magnetic field probe checked suitable for welded seam area |
Country Status (1)
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| CN (1) | CN206420815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770624A (en) * | 2016-12-29 | 2017-05-31 | 核动力运行研究所 | A kind of AC magnetic field probe checked suitable for welded seam area |
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2016
- 2016-12-29 CN CN201621466523.6U patent/CN206420815U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770624A (en) * | 2016-12-29 | 2017-05-31 | 核动力运行研究所 | A kind of AC magnetic field probe checked suitable for welded seam area |
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