CN202661447U - Pressure container weld transverse cracking TOFD (time of flight diffraction) detection scanner - Google Patents
Pressure container weld transverse cracking TOFD (time of flight diffraction) detection scanner Download PDFInfo
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- CN202661447U CN202661447U CN 201220252326 CN201220252326U CN202661447U CN 202661447 U CN202661447 U CN 202661447U CN 201220252326 CN201220252326 CN 201220252326 CN 201220252326 U CN201220252326 U CN 201220252326U CN 202661447 U CN202661447 U CN 202661447U
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Abstract
The utility model relates to a pressure container weld transverse cracking TOFD (time of flight diffraction) detection scanner. The scanner comprises a main frame, wherein magnetic wheel mechanisms are respectively arranged on four corners of the main frame, and each magnetic wheel mechanism comprises a magnetic wheel and a magnetic wheel bracket which is used for arranging the magnetic wheel on a corresponding position of the main frame; the main frame is provided with one or more probe loading arms, and part or all of the probe loading arms is provided with a probe; and the beam transmission direction of the probe and the horizontal direction form an included angle of between 30 and 60 degrees, and the probe comprises a TOFD probe. When the pressure container weld transverse cracking TOFD detection scanner is used for detecting a workpiece to be detected, the beam transmitted by the probe forms a certain included angle with the transverse cracking inside the workpiece to be detected; and after the beam transmitted by the probe is beat to the transverse cracking, the probe can receive more beam energy, and the transverse cracking inside the workpiece to be detected can be detected effectively.
Description
Technical field
The utility model relates to a kind of pressure tight seam transversal crack TOFD and detects scanner, and the weld metal crack that is mainly used in the end socket of boiler or pressure vessel detects, and is particularly useful for the detection of weld seam transversal crack.
Background technology
TOFD(Time Of Flight Diffraction) also called endpoint diffraction approach or diffracted wave time difference method, the diffraction energy that to be a kind of dependence obtain from " the end angle " and " end points " of tested inside workpiece structure (mainly referring to defective) detects the method for defective, is a kind of more new-type UT (Ultrasonic Testing) technology.Higher recall rate, defect quantitative precision and outstanding detection efficiency are the advantages of this technology maximum accurately.But this technology also exists deficiency, is exactly unsatisfactory to the transversal crack detection effect of inside workpiece.
At present, when adopting the TOFD technology that boiler or pressure tight seam are detected, because the beam direction single (mostly being perpendicular to surface of the work to be detected) that probe sends, be difficult to detect the transversal crack of weld seam, recall rate for the transversal crack that improves weld seam, generally can select the auxiliary TOFD of pulse reflection method to detect, for the transversal crack defective that can detect exactly inside workpiece.But such detection scheme can increase user's equipment cost unavoidably.
The utility model content
For overcoming the defects of prior art, the utility model provides a kind of pressure tight seam transversal crack TOFD to detect scanner, and the weld seam transversal crack that is applicable to boiler or pressure vessel detects.
The technical solution adopted in the utility model: a kind of pressure tight seam transversal crack TOFD detects scanner, comprise body frame, four jiaos of described body frame are respectively equipped with magnet-wheel mechanism, described magnet-wheel mechanism comprises magnet-wheel and is used for described magnet-wheel is installed in magnet-wheel support on the relevant position of described body frame, one or more probe loading arms are installed on the described body frame, on the part or all of described probe loading arm probe is installed, the beam transmission direction of described probe is from the horizontal by 30 °～60 ° angles, and described probe comprises the TOFD probe.
Described probe loading arm can comprise fixed mount, travelling carriage and be used for the crotch of fixing described probe, described travelling carriage preferably slides up and down with described fixed mount and cooperates, and connect by extension spring, the closing end of described crotch can be connected with the bottom of described travelling carriage by bolt, preferably from the horizontal by 30 °～60 ° angles, the probe loading arm of installing on the described left and right beam can be symmetrical arranged two arms of the openend of described crotch.
Described body frame can be made of front-axle beam, the back rest, Zuo Liang and right beam, described probe loading arm is preferably mounted on described left beam and/or the right beam, can be respectively equipped with on described Zuo Liang and the right beam for the dove-tail form chute that is slidingly matched with slide block, can be provided with the holding screw for its position on corresponding beam of locking on the described slide block, described fixed mount is fixedly connected with described slide block.
Preferably be provided with demagnetization device on the described magnet-wheel support, but described demagnetization device can be provided with down sliding and make its low side extend to the support column of the surface level of living in below, bottom surface of described magnet-wheel, and described support column can be provided with the handle of controlling its down sliding and resetting.
Can be provided with the water channel that is used to described probe that the scanning water is provided on the described body frame, described water channel can comprise the water supply main road that connects water inlet and several water supply branch roads that supply water to the detection position of described probe respectively, described water supply main road can connect several described water supply branch roads by water trap, and described water trap is preferably mounted at the below, middle part of described left beam or right beam.
Can be provided with laser designator on described left beam and/or the right beam, described laser designator can be installed on the corresponding beam by link, and described link preferably adopts can adjusting angle and/or movable connection structure highly.
Can be equipped with on the described body frame be used to the registering instrument that records described scanner walking displacement, described scanner can be provided be used to the drive motor that drives described magnet-wheel walking.
The middle part of described front-axle beam and/or the back rest preferably is provided with the outward extending extending beam that described probe loading arm is installed, and can be respectively equipped with the handle for mobile described scanner on described front-axle beam and the back rest.
Described body frame can also comprise central sill, a described left side, the front end of right beam can be hinged with the two ends of described front-axle beam respectively, the front portion of described central sill can be fixedly connected with the middle part of described front-axle beam, the described back rest can comprise symmetrical double threaded screw, the screw thread of its left side is opposite with the thread rotary orientation of right-hand part, the middle part of described double threaded screw does not preferably allow the mode of being rotatably connected of its move left and right to be connected to allow described double threaded screw to rotate take its axis as axle with the rear portion of described central sill, the left side of described double threaded screw, can be connected with respectively a left side on the screw thread of right-hand part, right nut, a described left side, right nut can with a described left side, the rear end of right beam connects, and the two ends of described double threaded screw can be respectively equipped be used to the rotating handles that rotates described double threaded screw.
The described back rest preferably is longer than described front-axle beam, the length of described left and right beam preferably equates, described left and right nut is preferably respectively with the connected mode of the rear end of described left and right beam and is connected by left and right connecting rod, one end of described left and right connecting rod is preferably hinged with the connecting portion of corresponding described nut, and the other end is preferably hinged with the connecting portion of the rear end of corresponding beam.
The beneficial effects of the utility model: because the beam transmission direction of probe of the present utility model is from the horizontal by certain angle, so that the utility model is when detecting workpiece to be checked, the wave beam of described probe emission and the transversal crack of inside workpiece to be checked are at a certain angle, after the wave beam of described probe emission is got to transversal crack, described probe can receive more beam energy, effectively realizes the detection to the transversal crack of inside workpiece to be checked.
The setting of demagnetization device can be taken off scanner the wear prevention workpiece easily from the ferromagnetic workpiece surface; Owing to be provided with the registering instrument of walking displacement, made things convenient for the monitoring to scanning process and scanning path.
Be provided with water channel on the body frame, and can be provided for controlling water trap with the balance output, can directly provide scanning required water, and the operation of need not supplying water separately, not only make things convenient for thus use, but also improved the reliability and the accuracy that supply water.
The back rest of the present utility model adopts the thread rotary orientation of double threaded screw and left right-hand part opposite, and left, the design of the syndeton of the uniqueness of right beam and the back rest, so that scanner can detect circular weld, during the scanner walking, a described left side, right, in the extended line of three beams meet at all the time a bit, this point is set as the center of circle or infinite distance (vertical masonry joint can be regarded as the center of circle at the circumferential weld of infinite distance) of tested circumferential weld, just can make the track route of scanner be circle or the linear identical with tested circumferential weld, guarantee that probe can detect along circular weld, the circumferential weld that is applicable under the various occasions such as end socket of boiler and pressure vessel detects and the vertical masonry joint detection, simultaneously, this structure is when the rotation back rest, left, right beam can synchronous change and central sill between angle, by regulating a left side, angle between right beam and the central sill, just can change the radius of the circuit of scanner walking, making it be applicable to the different circumferential weld of radius size detects, and for the circumferential weld of the identical a plurality of different radiis within limits in the center of circle, then can the position of mobile probe loading arm on respective beam just can realize the detection to different circumferential welds.
Because the extended line of left and right beam and central sill and the extended line that is installed in respectively the line of several probes on the left and right beam point to the center of circle of circular weld all the time, effectively help the staff exactly scanner to be positioned on the workpiece; Adjustable and the quantity of probe loading arm position can arrange and be several, makes scanner can detect or the same weld seam is carried out simultaneously the detection of various ways to many weld seams.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of another kind of embodiment of the present utility model.
Embodiment
Referring to Fig. 1, the utility model provides a kind of pressure tight seam transversal crack TOFD to detect scanner, comprise body frame, four jiaos of described body frame are respectively equipped with magnet-wheel mechanism, described magnet-wheel mechanism comprises magnet-wheel 5 and is used for described magnet-wheel is installed in magnet-wheel support 6 on the relevant position of described body frame, one or more probe loading arms 7 are installed on the described body frame, on the part or all of described probe loading arm probe is installed, the beam transmission direction of described probe is from the horizontal by 30 °～60 ° angles, such as 30 °, 40 °, 45 °, 50 ° or 60 °, be preferably 45 °, described probe comprises the TOFD probe, can also comprise the PE probe, climbing probe and/or phased array probe, described body frame is preferably by front-axle beam 1, the back rest 2, left beam 3 and right beam 4 consist of, and described probe loading arm is preferably mounted on described left beam and/or the right beam.
Beam transmission direction and the surface level of described probe are angled, so that scanner is when detecting workpiece to be checked, the wave beam of described probe emission and the transversal crack of inside workpiece to be checked are at a certain angle, after the wave beam of described probe emission is got to transversal crack, described probe can receive more beam energy, effectively realizes the detection to the transversal crack of inside workpiece to be checked.
Described probe loading arm can comprise fixed mount, travelling carriage and be used for the crotch of fixing described probe, described travelling carriage preferably slides up and down with described fixed mount and cooperates, and connect by extension spring, can make a side of described fixed mount be provided with the chute that matches with described travelling carriage, described travelling carriage is arranged in the chute of described fixed mount, realize being slidingly matched between described fixed mount and the travelling carriage with this, the closing end of described crotch can be connected with the bottom of described travelling carriage by bolt, two arms of the openend of described crotch are preferably from the horizontal by 30 °～60 ° angles, the size of two arms of the openend of described crotch and the angle of horizontal direction is decided according to the transmit direction of the wave beam of the described probe of workpiece needs to be detected and the corner dimension of horizontal direction, a preferred described left side, the probe loading arm of installing on the right beam is symmetrical arranged.Preferred scanner is under duty not, and the test side of the probe that described crotch carries is lower than the residing surface level in bottom surface of each described magnet-wheel.Thereby improve the detection quality for making described probe can have greater flexibility, described probe is rotatably connected on the described crotch by rotating shaft, and can fix the securing member of described rotating shaft rotational angle the setting of described crotch, also can adopt other suitable movable connection method to connect described probe and crotch.
Described probe loading arm adopts said structure, when workpiece to be checked is detected, described probe is adjacent to surface of the work, described travelling carriage is slided with respect to described fixed mount, described probe is pressed on the surface of described workpiece and detects, according to the shape of surface of the work, described travelling carriage does not wait with respect to the distance that described fixed mount slides, to guarantee that described probe is attached to surface of the work all the time, after detection finished, described travelling carriage resetted by the elastic reaction of described extension spring.
Can be respectively equipped with on described Zuo Liang and the right beam for the dove-tail form chute that is slidingly matched with slide block, described slide block can be provided with the holding screw for its position on corresponding beam of locking on the described slide block, so that can slide and the fixed position at corresponding beam.The left and right sides of preferred described Zuo Liang and right beam is equipped with the dove-tail form chute, be provided with in the described dove-tail form chute be connected to corresponding beam on the corresponding described slide block of the quantity of described probe loading arm, described fixed mount is fixedly connected with described slide block.
In order to adjust more easily the distance between each described probe loading arm on described left beam or the right beam, can be carved with rule on the upper surface of described Zuo Liang and right beam, to do reference.
Adjustable and the quantity of described probe loading arm position can be arranged to several, and scanner can be detected many weld seams simultaneously, also can carry out simultaneously the detection of various ways to the same circumferential weld.
Preferably be provided with demagnetization device on the described magnet-wheel support, but described demagnetization device can be provided with down sliding and make its low side extend to the support column of the surface level of living in below, bottom surface of described magnet-wheel, and described support column can be provided with the handle of controlling its down sliding and resetting.When needs take off scanner from workpiece to be checked, operate described handle and control described support column down sliding, when the bottom of described support column touches surface of the work to be checked, continue to make its down sliding, the described magnet-wheel corresponding with it and ferromagnetic workpiece surface is broken away from.Thereby scanner is taken off from workpiece to be checked, avoid taking off scanner from workpiece to be checked by force surface of the work is caused wearing and tearing.
The outside surface of described magnet-wheel can adopt metal material to make, the magnetic material section that sets within it, can be provided with the rubber ring of the slightly outstanding described magnet-wheel outside surface of a circle at the middle part of described magnet-wheel outside surface, when described magnet-wheel is adsorbed on the workpiece to be checked, described rubber ring extrusion, can increase the friction force of described magnet-wheel and surface of the work, be conducive to the walking of scanner on workpiece.
Can be provided with the water channel that is used to described probe that the scanning water is provided on the described body frame, described water channel can comprise the water supply main road that connects water inlet and several water supply branch roads that supply water to the detection position of described probe respectively, described water supply main road can connect several described water supply branch roads by water trap, and described water trap is preferably mounted at the below, middle part of described left beam or right beam.
Can be provided with laser designator on described left beam and/or the right beam, be used for shining the weld seam on the workpiece to be checked, can also play the effect of illumination in the time of indication scanner track route, described laser designator can be installed on the corresponding beam by link, and described link preferably adopts can adjusting angle and/or movable connection structure highly.
Can be equipped with on the described body frame be used to the registering instrument that records described scanner walking displacement, described registering instrument can adopt rotary angular displacement photoelectric encoder, also can adopt detection or the sensing devices such as other electromechanical, electromagnetic type, the side of described registering instrument can be provided with data line interface, can be connected with terminal control unit by data line.Described scanner can also be provided be used to the drive motor that drives described magnet-wheel walking.
The middle part of described front-axle beam and/or the back rest preferably is provided with the outward extending extending beam 8 that described probe loading arm is installed, when needing, can described probe loading arm be installed at described extending beam, to enlarge the sensing range of scanner, also rule can be carved with on the upper surface of described extending beam, the handle 9 for mobile described scanner can be respectively equipped with on described front-axle beam and the back rest.
Can also be provided with on the described scanner for the information exchange of described probe collection is crossed the data line interface that data line sends terminal control unit to, the circuit that described probe is connected with described data line interface can be arranged in the described body frame, can connect scanner and described terminal control unit by the data line corresponding with described data line interface, make testing result in time send described terminal control unit to; Storer be used to the information of storing described probe collection perhaps can be installed on the described body frame, be used for the storage testing result, will detect data by suitable data transfer mode again after work is finished and send described interruptable controller to.Can be provided with the data line holder on the described body frame, be used for the position of fixing described data line, prevent walking and detection that it affects scanner.
Referring to Fig. 2, described body frame can also comprise central sill 10, a described left side, the front end of right beam can be hinged with the two ends of described front-axle beam respectively, be convenient to relatively rotate, the front portion of described central sill can be fixedly connected with the middle part of described front-axle beam, the described back rest can comprise symmetrical double threaded screw, the screw thread of its left side is opposite with the thread rotary orientation of right-hand part, the middle part of described double threaded screw does not preferably allow the mode of being rotatably connected of its move left and right to be connected to allow described double threaded screw to rotate take its axis as axle with the rear portion of described central sill, make when the described double threaded screw of rotation, can not change the position relationship between itself and the described central sill, the left side of described double threaded screw, can be connected with respectively a left side on the screw thread of right-hand part, right nut 11, a described left side, right nut take described central sill as axis of symmetry the is symmetricly set on described back rest on, a described left side, right nut can with a described left side, the rear end of right beam connects, a preferred described left side, right nut and a described left side, the connected mode of the rear end of right beam is left for passing through respectively, right connecting rod 12 connects, a described left side, one end of right connecting rod is preferably hinged with the connecting portion of corresponding described nut, and the other end is preferably hinged with the connecting portion of the rear end of corresponding beam.The preferred described back rest is longer than described front-axle beam, a described left side, the equal in length of right beam, so that scanner when walking, a described left side, right, in the extended line of three beams meet at all the time a bit, be installed in respectively a described left side, the extended line of the line of the described probe loading arm of several on the right beam also meets at this point all the time, this point is set as the center of circle of circumferential weld to be checked, just can make the track route of scanner be circle or the arc identical with tested circumferential weld, effectively help the staff exactly scanner to be positioned on the workpiece to be checked, the probe that guarantees to be installed on the scanner can detect along annular circumferential weld.This structure is when the described double threaded screw of rotation, described left and right beam can synchronous change and described central sill between angle, by regulating the angle between described left and right beam and the central sill, just can change the radius of the circuit of scanner walking, make it be applicable to the different circumferential weld of radius size and detect.Operation during for ease of use, the two ends of described double threaded screw can be respectively equipped be used to the rotating handles that rotates described double threaded screw.
The length of preferred described central sill equals the length sum of described left beam or right beam and described left connecting rod or right connecting rod, so that during the suitable described double threaded screw of rotation, can make described body frame rectangular, this moment, scanner can straight line moving.
Can be respectively equipped with laser alignment instrument on the described left and right beam, can effectively help the staff exactly scanner to be positioned on the workpiece.
Preferably, the rotor shaft direction of setting described magnet-wheel is identical with the bearing of trend of corresponding left and right beam, can guarantee thus when the angle of suitably regulating between described left and right beam and the described central sill, the angle of described magnet-wheel (traffic direction) is also along with corresponding described left beam or the one logical change of right beam, scanner can be walked along circle or arching trajectory, and need not described magnet-wheel is regulated separately.
The utility model compact conformation, dirigibility are good, accuracy in detection and fiduciary level are high, are particularly useful for the detection of the transversal crack of workpiece weld seam to be checked.
Claims (10)
1. a pressure tight seam transversal crack TOFD detects scanner, comprise body frame, four jiaos of described body frame are respectively equipped with magnet-wheel mechanism, described magnet-wheel mechanism comprises magnet-wheel and is used for described magnet-wheel is installed in magnet-wheel support on the relevant position of described body frame, it is characterized in that being equipped with on the described body frame one or more probe loading arms, on the part or all of described probe loading arm probe is installed, the beam transmission direction of described probe is from the horizontal by 30 °～60 ° angles, and described probe comprises the TOFD probe.
2. pressure tight seam transversal crack TOFD as claimed in claim 1 detects scanner, it is characterized in that described probe loading arm comprises fixed mount, travelling carriage and is used for the crotch of fixing described probe, described travelling carriage slides up and down with described fixed mount and cooperates, and connect by extension spring, the closing end of described crotch is connected with the bottom of described travelling carriage by bolt, two arms of the openend of described crotch are from the horizontal by 30 °～60 ° angles, and the probe loading arm of installing on the described left and right beam is symmetrical arranged.
3. pressure tight seam transversal crack TOFD as claimed in claim 2 detects scanner, it is characterized in that described body frame is made of front-axle beam, the back rest, Zuo Liang and right beam, described probe loading arm is installed on described left beam and/or the right beam, be respectively equipped with on described Zuo Liang and the right beam for the dove-tail form chute that is slidingly matched with slide block, described slide block is provided with the holding screw for its position on corresponding beam of locking, and described fixed mount is fixedly connected with described slide block.
4. pressure tight seam transversal crack TOFD as claimed in claim 3 detects scanner, it is characterized in that described magnet-wheel support is provided with demagnetization device, but described demagnetization device is provided with down sliding and make its low side extend to the support column of the surface level of living in below, bottom surface of described magnet-wheel, and described support column is provided with the handle of controlling its down sliding and resetting.
5. pressure tight seam transversal crack TOFD as claimed in claim 4 detects scanner, it is characterized in that described body frame is provided with the water channel that is used to described probe that the scanning water is provided, described water channel comprises the water supply main road that connects water inlet and several water supply branch roads that supply water to the detection position of described probe respectively, described water supply main road connects several described water supply branch roads by water trap, and described water trap is installed in the below, middle part of described left beam or right beam.
6. pressure tight seam transversal crack TOFD as claimed in claim 5 detects scanner, it is characterized in that described left beam and/or right beam are provided with laser designator, described laser designator is installed on the corresponding beam by link, and described link adopts can adjusting angle and/or movable connection structure highly.
7. pressure tight seam transversal crack TOFD as claimed in claim 6 detects scanner, it is characterized in that being equipped with on the described body frame registering instrument be used to recording described scanner walking displacement, described scanner is provided be used to the drive motor that drives described magnet-wheel walking.
8. pressure tight seam transversal crack TOFD as claimed in claim 7 detects scanner, the middle part that it is characterized in that described front-axle beam and/or the back rest is provided with the outward extending extending beam that described probe loading arm is installed, and is respectively equipped with the handle for mobile described scanner on described front-axle beam and the back rest.
9. such as claim 1,2,3,4,5,6,7 or 8 described pressure tight seam transversal crack TOFD detect scanner, it is characterized in that described body frame also comprises central sill, a described left side, the front end of right beam is hinged with the two ends of described front-axle beam respectively, the front portion of described central sill is fixedly connected with the middle part of described front-axle beam, the described back rest comprises symmetrical double threaded screw, the screw thread of its left side is opposite with the thread rotary orientation of right-hand part, the middle part of described double threaded screw does not allow the mode of being rotatably connected of its move left and right to be connected with the rear portion of described central sill to allow described double threaded screw to rotate take its axis as axle, the left side of described double threaded screw, be connected with respectively a left side on the screw thread of right-hand part, right nut, a described left side, right nut and a described left side, the rear end of right beam connects, and the two ends of described double threaded screw are respectively equipped be used to the rotating handles that rotates described double threaded screw.
10. pressure tight seam transversal crack TOFD as claimed in claim 9 detects scanner, it is characterized in that the described back rest is longer than described front-axle beam, the equal in length of described left and right beam, the connected mode of described left and right nut and the rear end of described left and right beam is for being connected by left and right connecting rod respectively, one end of described left and right connecting rod and the connecting portion of corresponding described nut are hinged, and the other end is hinged with the connecting portion of the rear end of corresponding beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252326 CN202661447U (en) | 2012-05-31 | 2012-05-31 | Pressure container weld transverse cracking TOFD (time of flight diffraction) detection scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252326 CN202661447U (en) | 2012-05-31 | 2012-05-31 | Pressure container weld transverse cracking TOFD (time of flight diffraction) detection scanner |
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| Publication Number | Publication Date |
|---|---|
| CN202661447U true CN202661447U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220252326 Expired - Lifetime CN202661447U (en) | 2012-05-31 | 2012-05-31 | Pressure container weld transverse cracking TOFD (time of flight diffraction) detection scanner |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063749A (en) * | 2013-01-11 | 2013-04-24 | 上海电机学院 | Carrying vehicle used for automatic flaw detection of nuclear power barrel |
| CN103235043A (en) * | 2013-03-29 | 2013-08-07 | 国家电网公司 | Remote-controlled rotatable pillar insulator creeping wave probe support |
| CN106932491A (en) * | 2017-04-11 | 2017-07-07 | 中国特种设备检测研究院 | Channel ultrasonic detects scanning frame |
| CN110018242A (en) * | 2019-03-25 | 2019-07-16 | 二重集团（镇江）重型装备厂有限责任公司 | A kind of automatic scanning device for transversal crack |
| CN110018243A (en) * | 2019-03-25 | 2019-07-16 | 二重集团（镇江）重型装备厂有限责任公司 | A kind of automatic scanning device for transversal crack |
| CN110749652A (en) * | 2019-11-18 | 2020-02-04 | 中国第一重型机械集团大连加氢反应器制造有限公司 | TOFD flaw detection auxiliary device and using method thereof |
-
2012
- 2012-05-31 CN CN 201220252326 patent/CN202661447U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063749A (en) * | 2013-01-11 | 2013-04-24 | 上海电机学院 | Carrying vehicle used for automatic flaw detection of nuclear power barrel |
| CN103235043A (en) * | 2013-03-29 | 2013-08-07 | 国家电网公司 | Remote-controlled rotatable pillar insulator creeping wave probe support |
| CN106932491A (en) * | 2017-04-11 | 2017-07-07 | 中国特种设备检测研究院 | Channel ultrasonic detects scanning frame |
| CN110018242A (en) * | 2019-03-25 | 2019-07-16 | 二重集团（镇江）重型装备厂有限责任公司 | A kind of automatic scanning device for transversal crack |
| CN110018243A (en) * | 2019-03-25 | 2019-07-16 | 二重集团（镇江）重型装备厂有限责任公司 | A kind of automatic scanning device for transversal crack |
| CN110749652A (en) * | 2019-11-18 | 2020-02-04 | 中国第一重型机械集团大连加氢反应器制造有限公司 | TOFD flaw detection auxiliary device and using method thereof |
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