CN203849208U - Circumferential ultrasonic inspection device applied to thick-wall pipe - Google Patents
Circumferential ultrasonic inspection device applied to thick-wall pipe Download PDFInfo
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- CN203849208U CN203849208U CN201420159653.XU CN201420159653U CN203849208U CN 203849208 U CN203849208 U CN 203849208U CN 201420159653 U CN201420159653 U CN 201420159653U CN 203849208 U CN203849208 U CN 203849208U
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Abstract
The utility model provides a circumferential ultrasonic inspection device applied to a thick-wall pipe. The circumferential ultrasonic inspection device comprises a standard sample I (91), a standard sample II (92), an ultrasonic reflectoscope (93) and a processor (94), wherein the standard sample I (91) and the standard sample II (92) are in contact connection with a probe of the ultrasonic reflectoscope (93) and are configured to calibrate parameter values of the ultrasonic reflectoscope (93), the processor (94) is connected with the output end of the ultrasonic reflectoscope (93), and incidence angles between the longitudinal wave of the ultrasonic reflectoscope (93) and the standard sample I (91), the standard sample II (92) and the thick-wall pipe are set to be 42-48 degrees, so that sonic waves are focused in the inner wall and income defects of the inner wall in a certain angle; through reflection of terminal angles, the inspection sensitivity is further improved, so that the inspection precision on the thick-wall pipe is improved.
Description
One, technical field
The utility model relates to a kind of circumferential ultrasonic inspection method and device, especially a kind of circumferential apparatus for ultrasonic examination for heavier walled fitting.
Two, background technology
In order to guarantee the quality of heavier walled fitting, prevent defect, just need to carry out ultrasonic inspection method to heavier walled fitting, therefore the circumferential apparatus for ultrasonic examination for heavier walled fitting is a kind of important inspection method, at the existing circumferential apparatus for ultrasonic examination for heavier walled fitting, all to use the modification shear wave that adopts water seaoning to produce to detect on production line, owing to adopting water seaoning, its range of application has been subject to great limitation, heavier walled fitting as larger in radius and adopting water seaoning more difficult with thick-walled pipe, and use its sensitivity of low-angle refracted shear to be restricted, thereby affected right inspection precision.
Three, summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model is to provide a kind of circumferential apparatus for ultrasonic examination for heavier walled fitting, has therefore improved the inspection precision to heavier walled fitting.
For achieving the above object, the technical scheme that the utility model is taked is:
A kind of circumferential apparatus for ultrasonic examination for heavier walled fitting, include standard sample I, standard sample II, supersonic reflectoscope and processor, standard sample I and standard sample II are set to respectively connect and demarcate with the probe contact of somascope the parameter value of somascope, processor is set to connect with the output terminal of supersonic reflectoscope, and the incident angle of the compressional wave of supersonic reflectoscope and standard sample I, standard sample II and heavier walled fitting is set to 42-48 °.
Owing to having designed the incident angle of selecting compressional wave, acoustic beam is focused at inwall, incide at a certain angle inner wall defect, by end corner reflection, further improve detection sensitivity, therefore improved the inspection precision to heavier walled fitting.
The utility model has designed, and the incident angle of the compressional wave of supersonic reflectoscope and standard sample I, standard sample II and heavier walled fitting is set to 45 °.
The utility model has designed, and standard sample I is set to CSK-1A test block when the external diameter when heavier walled fitting is greater than 500mm, when being less than 500mm, the external diameter when heavier walled fitting is set to include arc sections I and arc sections II with standard sample I, the mode that arc sections I is set to overlap according to the periphery in a side with arc sections II superposes and connects, on the periphery of arc sections I, being provided with through hole that V-arrangement open slot and diameter are 1.8-2.2mm the center line of V-arrangement open slot and through hole is separately positioned in the same radius of arc sections I, distance between the periphery of the center of circle of through hole and arc sections I is set to 18-22mm, the center of circle that is provided with open slot Bing Ban garden, the identical Ban of the radius R 2 garden open slot of radius and arc sections II at arc sections I and arc sections II stack position is arranged on the periphery of arc sections I and with the center of circle of through hole on the same diameter line in arc sections I, angle between the notch of V-arrangement open slot 11 is set to 58-62 °, when the external diameter of heavier walled fitting is set to 44-56mm, arc sections I radius R 1 is set to 25mm, the radius R 2 of arc sections II is set to 20mm, when the external diameter of heavier walled fitting is set to 54-66mm, the radius R 2 that arc sections I radius R 1 is set to 30mm, arc sections II is set to 25mm, when the external diameter of heavier walled fitting is set to 66-80mm, the radius R 2 that arc sections I radius R 1 is set to 37mm, arc sections II is set to 30mm, when the external diameter of heavier walled fitting is set to 80-100mm, the radius R 2 that arc sections I (1) radius R 1 is set to 44mm, arc sections II is set to 35mm, when the external diameter of heavier walled fitting is set to 100-120mm, the radius R 2 that arc sections I radius R 1 is set to 55mm, arc sections II is set to 45mm, when the external diameter of heavier walled fitting is set to 120-150mm, the radius R 2 that arc sections I radius R 1 is set to 68mm, arc sections II is set to 55mm, when the external diameter of heavier walled fitting is set to 150-190mm, the radius R 2 that arc sections I radius R 1 is set to 85mm, arc sections II is set to 70mm, when the external diameter of heavier walled fitting is set to 190-230mm, the radius R 2 that arc sections I radius R 1 is set to 105mm, arc sections II is set to 85mm, when the external diameter of heavier walled fitting is set to 230-290mm, the radius R 2 that arc sections I radius R 1 is set to 130mm, arc sections II is set to 105mm, when the external diameter of heavier walled fitting is set to 290-370mm, the radius R 2 that arc sections I radius R 1 is set to 165mm, arc sections II is set to 135mm, when the external diameter of heavier walled fitting is set to 370-450mm, the radius R 2 that arc sections I radius R 1 is set to 205mm, arc sections II is set to 170mm, when the external diameter of heavier walled fitting is set to 400-500mm, the radius R 2 that arc sections I radius R 1 is set to 230mm, arc sections II is set to 190mm,
It is corresponding and be provided with through hole in standard sample II that the parameter value of standard sample II is set to size with heavier walled fitting.
The utility model has designed, and the frequency of operation that supersonic reflectoscope is set to pulse reflection hyperchannel or single channel ultrasonic wave defectoscope piezoelectric supersonic probe is that the wafer length of 1MHz-15MHz, single probe or diameter should be less than or equal to when 25mm and artificial defect length are less than 20mm and should be less than or equal to 12mm.
In the technical program, heavier walled fitting refers to that the internal diameter of steel pipe and the ratio of external diameter are less than 80% steel pipe that to be wall thickness be greater than 0.2 with the ratio of tube wall external diameter.
In the technical program, every when the technical characterictic of drawing be all use or relation, every numerical range occurring in the technical characterictic of drawing is because the technical characterictic of a whole restriction.
In the technical program, the incident angle of compressional wave is important technical characterictic, in the technical field of the circumferential apparatus for ultrasonic examination for heavier walled fitting, has novelty, creativeness and practicality.
Four, accompanying drawing explanation
Fig. 1 is the schematic diagram of standard sample I 91:
Fig. 2 is the left view of Fig. 1:
Fig. 3 is the schematic diagram that the standard value at compressional wave refraction angle is measured:
Fig. 4 is the standard value measure and calculation schematic diagram at compressional wave refraction angle:
Fig. 5 thick-walled pipe modification shear wave detects defect location figure:
Fig. 6 is schematic diagram of the present utility model.
Five, embodiment
First embodiment of a kind of circumferential apparatus for ultrasonic examination for heavier walled fitting, Fig. 6 is first embodiment of the present utility model, illustrate by reference to the accompanying drawings the present embodiment, include standard sample I 91, standard sample II 92, supersonic reflectoscope 93 and processor 94, standard sample I 91 and standard sample II 92 are set to connect and demarcate with the probe contact of somascope 93 parameter value of somascope 93, and processor 94 is set to connect with the output terminal of supersonic reflectoscope 93.
In the present embodiment, the incident angle of the compressional wave of supersonic reflectoscope and standard sample I 91, standard sample II 92 and heavier walled fitting is set to 42 °.
In the present embodiment, when the external diameter of heavier walled fitting is greater than 500mm, standard sample I 91 is set to CSK-1A test block;
When the external diameter of heavier walled fitting is less than 500mm, standard sample I 91 is set to arc sections I 1 and arc sections II 2, the mode that arc sections I 1 is set to overlap according to the periphery in a side with arc sections II 2 superposes and connects, on the periphery of arc sections I 1, being provided with V-arrangement open slot 11 and diameter is that the through hole 12 of 1.8mm the center line of V-arrangement open slot 11 and through hole 12 are separately positioned in the same radius of arc sections I 1, distance between the periphery of the center of circle of through hole 12 and arc sections I 1 is set to 18mm, the center of circle that is provided with open slot 13Bing Ban garden, the identical Ban of the radius R 2 garden open slot 13 of radius and arc sections II 2 at arc sections I 1 and arc sections II 2 stack positions is arranged on the periphery of arc sections I 1 and with the center of circle of through hole 12 on the same diameter line in arc sections I 1, angle between the notch of V-arrangement open slot 11 is set to 58 °,
When the external diameter of heavier walled fitting is set to 44-56mm, the radius R 2 that arc sections I 1 radius R 1 is set to 25mm, arc sections II 2 is set to 20mm;
When the external diameter of heavier walled fitting is set to 54-66mm, the radius R 2 that arc sections I 1 radius R 1 is set to 30mm, arc sections II 2 is set to 25mm;
When the external diameter of heavier walled fitting is set to 66-80mm, the radius R 2 that arc sections I 1 radius R 1 is set to 37mm, arc sections II 2 is set to 30mm;
When the external diameter of heavier walled fitting is set to 80-100mm, the radius R 2 that arc sections I 1 radius R 1 is set to 44mm, arc sections II 2 is set to 35mm;
When the external diameter of heavier walled fitting is set to 100-120mm, the radius R 2 that arc sections I 1 radius R 1 is set to 55mm, arc sections II 2 is set to 45mm;
When the external diameter of heavier walled fitting is set to 120-150mm, the radius R 2 that arc sections I 1 radius R 1 is set to 68mm, arc sections II 2 is set to 55mm;
When the external diameter of heavier walled fitting is set to 150-190mm, the radius R 2 that arc sections I 1 radius R 1 is set to 85mm, arc sections II 2 is set to 70mm;
When the external diameter of heavier walled fitting is set to 190-230mm, the radius R 2 that arc sections I 1 radius R 1 is set to 105mm, arc sections II 2 is set to 85mm;
When the external diameter of heavier walled fitting is set to 230-290mm, the radius R 2 that arc sections I 1 radius R 1 is set to 130mm, arc sections II 2 is set to 105mm;
When the external diameter of heavier walled fitting is set to 290-370mm, the radius R 2 that arc sections I 1 radius R 1 is set to 165mm, arc sections II 2 is set to 135mm;
When the external diameter of heavier walled fitting is set to 370-450mm, the radius R 2 that arc sections I 1 radius R 1 is set to 205mm, arc sections II 2 is set to 170mm;
When the external diameter of heavier walled fitting is set to 400-500mm, the radius R 2 that arc sections I 1 radius R 1 is set to 230mm, arc sections II 2 is set to 190mm;
It is corresponding and be provided with through hole 12 that the parameter value of standard sample II 92 is set to size with heavier walled fitting.
In the present embodiment, supersonic reflectoscope 93 is set to wafer length that the frequency of operation of pulse reflection hyperchannel or single channel ultrasonic wave defectoscope piezoelectric supersonic probe is 1MHz-15MHz, single probe or diameter and should be less than or equal to when 25mm and artificial defect length are less than 20mm and should be less than or equal to 12mm.
In processor 94, implant the handling procedure to the range parameter standard value of the Gao Bo of the standard value at Front distance length, compressional wave refraction angle and shear refraction angle and compressional wave and shear wave, by supersonic reflectoscope 93, existed
Standard sample I 91, standard sample II 92 and heavier walled fitting scanning obtain reflection wave, are sent to and in processor 94, carry out data processing.
A kind of second embodiment of the circumferential apparatus for ultrasonic examination for heavier walled fitting, when the external diameter of heavier walled fitting is less than 500mm, standard sample I 91 is set to arc sections I 1 and arc sections II 2, the mode that arc sections I 1 is set to overlap according to the periphery in a side with arc sections II 2 superposes and connects, on the periphery of arc sections I 1, being provided with V-arrangement open slot 11 and diameter is that the through hole 12 of 2.2mm the center line of V-arrangement open slot 11 and through hole 12 are separately positioned in the same radius of arc sections I 1, distance between the periphery of the center of circle of through hole 12 and arc sections I 1 is set to 22mm, the center of circle that is provided with open slot 13Bing Ban garden, the identical Ban of the radius R 2 garden open slot 13 of radius and arc sections II 2 at arc sections I 1 and arc sections II 2 stack positions is arranged on the periphery of arc sections I 1 and with the center of circle of through hole 12 on the same diameter line in arc sections I 1, angle between the notch of V-arrangement open slot 11 is set to 62 °.
In the present embodiment, the incident angle of the compressional wave of supersonic reflectoscope and standard sample I 91, standard sample II 92 and heavier walled fitting is set to 48 °.
A kind of the 3rd embodiment of the circumferential apparatus for ultrasonic examination for heavier walled fitting, when the external diameter of heavier walled fitting is less than 500mm, standard sample I 91 is set to arc sections I 1 and arc sections II 2, the mode that arc sections I 1 is set to overlap according to the periphery in a side with arc sections II 2 superposes and connects, on the periphery of arc sections I 1, being provided with V-arrangement open slot 11 and diameter is that the through hole 12 of 2.0mm the center line of V-arrangement open slot 11 and through hole 12 are separately positioned in the same radius of arc sections I 1, distance between the periphery of the center of circle of through hole 12 and arc sections I 1 is set to 20mm, the center of circle that is provided with open slot 13Bing Ban garden, the identical Ban of the radius R 2 garden open slot 13 of radius and arc sections II 2 at arc sections I 1 and arc sections II 2 stack positions is arranged on the periphery of arc sections I 1 and with the center of circle of through hole 12 on the same diameter line in arc sections I 1, angle between the notch of V-arrangement open slot 11 is set to 60 °.
In the present embodiment, the incident angle of the compressional wave of supersonic reflectoscope and standard sample I 91, standard sample II 92 and heavier walled fitting is set to 45 °.
A kind of circumferential ultrasonic inspection method for heavier walled fitting:
One, the standard value at Front distance length, compressional wave refraction angle and shear refraction angle is measured:
The demarcation of a, standard sample I 91:
When the external diameter of heavier walled fitting is greater than 500mm, standard sample I 91 is set to CSK-1A test block;
When the external diameter of heavier walled fitting is less than 500mm, standard sample I 91 is set to include arc sections I 1 and arc sections II 2, the mode that arc sections I 1 is set to overlap according to the periphery in a side with arc sections II 2 superposes and connects, on the periphery of arc sections I 1, being provided with V-arrangement open slot 11 and diameter is that the through hole 12 of 1.8-2.2mm the center line of V-arrangement open slot 11 and through hole 12 are separately positioned in the same radius of arc sections I 1, distance between the periphery of the center of circle of through hole 12 and arc sections I 1 is set to 18-22mm, the center of circle that is provided with open slot 13Bing Ban garden, the identical Ban of the radius R 2 garden open slot 13 of radius and arc sections II 2 at arc sections I 1 and arc sections II 2 stack positions is arranged on the periphery of arc sections I 1 and with the center of circle of through hole 12 on the same diameter line in arc sections I 1,
When the external diameter of heavier walled fitting is set to 44-56mm, the radius R 2 that arc sections I 1 radius R 1 is set to 25mm, arc sections II 2 is set to 20mm;
When the external diameter of heavier walled fitting is set to 54-66mm, the radius R 2 that arc sections I 1 radius R 1 is set to 30mm, arc sections II 2 is set to 25mm;
When the external diameter of heavier walled fitting is set to 66-80mm, the radius R 2 that arc sections I 1 radius R 1 is set to 37mm, arc sections II 2 is set to 30mm;
When the external diameter of heavier walled fitting is set to 80-100mm, the radius R 2 that arc sections I 1 radius R 1 is set to 44mm, arc sections II 2 is set to 35mm;
When the external diameter of heavier walled fitting is set to 100-120mm, the radius R 2 that arc sections I 1 radius R 1 is set to 55mm, arc sections II 2 is set to 45mm;
When the external diameter of heavier walled fitting is set to 120-150mm, the radius R 2 that arc sections I 1 radius R 1 is set to 68mm, arc sections II 2 is set to 55mm;
When the external diameter of heavier walled fitting is set to 150-190mm, the radius R 2 that arc sections I 1 radius R 1 is set to 85mm, arc sections II 2 is set to 70mm;
When the external diameter of heavier walled fitting is set to 190-230mm, the radius R 2 that arc sections I 1 radius R 1 is set to 105mm, arc sections II 2 is set to 85mm;
When the external diameter of heavier walled fitting is set to 230-290mm, the radius R 2 that arc sections I 1 radius R 1 is set to 130mm, arc sections II 2 is set to 105mm;
When the external diameter of heavier walled fitting is set to 290-370mm, the radius R 2 that arc sections I 1 radius R 1 is set to 165mm, arc sections II 2 is set to 135mm;
When the external diameter of heavier walled fitting is set to 370-450mm, the radius R 2 that arc sections I 1 radius R 1 is set to 205mm, arc sections II 2 is set to 170mm;
When the external diameter of heavier walled fitting is set to 400-500mm, the radius R 2 that arc sections I 1 radius R 1 is set to 230mm, arc sections II 2 is set to 190mm;
The standard value of b, Front distance length is measured: in standard sample I 91, longitudinal wave oblique probe is put on half garden open slot 13, the home position of Yan Ban garden open slot 13 moves forward and backward, find Gao Bo, point on probe corresponding to Ze Ban garden open slot 13 home positions is Probe index, measures this point and to the distance in forward position, is the standard value of Front distance length;
The standard value at c, compressional wave refraction angle is measured: by longitudinal wave oblique probe scanning V-arrangement open slot 11, when reaching the highest reflection wave amplitude wave width, the length of AC section is Probe index to the distance of V-arrangement open slot 11, ∠ ACB is that radius is the central angle of the circle of R1 as seen from Figure 3, be ∠ ACB=90 °, compressional wave refraction angle is:
S is set to ultrasound wave sound path.
The standard value at d, shear refraction angle is measured: according to wave mode, change law:
In formula:
,
be respectively shear wave, compressional wave refraction angle;
,
be respectively shear wave, longitudinal wave velocity.
Shear refraction angle
;
E, the range parameter standard value of demarcating the Gao Bo of compressional wave and shear wave from supersonic reflectoscope;
The demarcation of d, standard sample II 92: the size production standard sample II 92 according to heavier walled fitting is provided with through hole 12 in standard sample II 92.
Two, the demarcation of the scanning ratio of supersonic reflectoscope
Standard value according to the Front distance length in first step, compressional wave refraction angle and shear refraction angle scans standard sample II 92, by the center of circle of the through hole 12 of standard sample II 92 and the distance between standard sample Ⅱ92 center, determined the scanning ratio of supersonic reflectoscope by the parameter and standard value of the Gao Bo of compressional wave and shear wave;
Three, the inspection to heavier walled fitting
Use the supersonic reflectoscope of demarcating to scan heavier walled fitting, at supersonic reflectoscope, obtain the position proportional value of reflection wave, take first or secondary reflection wave, when first or the range parameter value of secondary reflection wave be greater than the compressional wave of demarcation and the Gao Bo of shear wave range parameter standard value 80% time, according to the defective locations that obtains the position proportional value of reflection wave and the scanning ratio of supersonic reflectoscope and determine heavier walled fitting.
In the present embodiment, the incident angle of the compressional wave of supersonic reflectoscope and standard sample and heavier walled fitting is set to 42 °.
In the present embodiment, when the Front distance length according in first step, the standard value at compressional wave refraction angle and shear refraction angle scans standard sample II 92, while obtaining the parameter and standard value of Gao Bo of compressional wave and shear wave, when the scanning ratio of adjustment supersonic reflectoscope is definite value, the scale value of supersonic reflectoscope is set to the center of circle of through hole 12 of standard sample II 92 and the value that multiplies each other and obtain of the scanning ratio of the distance between standard sample Ⅱ92 center and supersonic reflectoscope, the defective locations numerical value of heavier walled fitting be exactly supersonic reflectoscope when scanning range parameter value be the position numerical value of 80% the reflection wave of range parameter standard value of Gao Bo of compressional wave and the shear wave expression in supersonic reflectoscope.
In the present embodiment,
the judgement of defective locations location:
In Fig. 4, A point is Probe index, the thick-walled pipe inherent vice that C point is found for modification shear wave, and the span of this defect on pipe fitting is
, in triangle AOB:
，
。
Longitudinal wave velocity in the thick-walled pipe that input is measured in supersonic reflectoscope (93), supposes that while finding C point defect, defectoscope sound path is shown as S, can utilize demonstration sound path to try to achieve BC segment length to be:
; In triangle BOC, utilize the cosine law to try to achieve
, C point defect depth of burial is
; In addition, in triangle BOC, utilize sine to try to achieve
:
The span L of C point defect is:
R is set to the external diameter of heavier walled fitting,
In Fig. 5, in modification shear wave testing process, the main modification shear wave that uses detects, the echo producing for refracted shear, refracted longitudinal wave can be got rid of by the travel-time, the velocity of sound parameter of digital defectoscope can be set by longitudinal wave velocity, when occurring that echoed signal shows that sound path is greater than L2 and can gets rid of, and does not consider.L2 can calculate by following formula:
Because refracted shear S2 velocity of propagation is slower than velocity of longitudinal wave, the sound path showing in defectoscope is
, this numerical value is relevant with specification of workpieces, and generally in thick-walled pipe, this numerical value is all greater than compressional wave sound path L2, and the echo demonstration sound path that refracted shear is found is less than the echo of L2 and also can automatically gets rid of.
F1 place defective locations is refracted shear sound path and is greater than the part that L2 is less than primary reflection sound path, this defect flaw echoes easy and that F2 place modification shear wave, F3 place reflected P-wave produce is obscured, while finding this demonstration sound path echo, can move forward and backward probe, if this defect is positioned at F1 place, while moving forward, refracted longitudinal wave, the scanning of modification shear wave are less than this defect; While moving backward, only have modification shear wave scanning to arrive this defect, and show that with refracted shear sound path differs L2.If the echo of this sound path comes from F2, F3 place, move forward pop one's head in refracted shear or refracted longitudinal wave all can scanning to this defect, but be all less than L2 because echo-ranging shows, can automatically get rid of, the initial echo of the finding echo that modification shear wave produces of ascending the throne.
The utlity model has lower feature:
1, owing to having designed the incident angle of selecting compressional wave, acoustic beam is focused at inwall, incide at a certain angle inner wall defect, by end corner reflection, further improve detection sensitivity, therefore improved the inspection precision to heavier walled fitting.
2, owing to having designed standard sample I 91 and standard sample II 92, improve checking efficiency, guaranteed accuracy of detection.
, owing to designing and making small curve thick-walled pipe, circumferentially detect reference block, can regulate scanning range, measure Probe index and probe compressional wave refraction angle and shear refraction angle;
2, because development and design exploitation thick-walled pipe distortion shear wave circumferential defect is surveyed positioning system, can automatically to the velocity of sound of different wave modes, change, realize precise defect location;
3, due to design ultra-sonic defect detector interface, can realize data automatic transmission between defectoscope and software;
4, this project has confirmed that from theoretical research and verification experimental verification distortion shear wave has the superiority that other wave test do not possess certain specification thick-walled pipe detects, and designed and produced reference block, calculating and positioning software have been developed, worked out the ultrasound examination technique of thick-walled pipe, successfully for the detection of thick-walled pipe.
Above-described embodiment is a kind of way of realization of the two circular arc test blocks of the circumferential ultrasonic detection method for heavier walled fitting provided by the utility model and device or reference block; according to other distortion of scheme provided by the utility model; increase or reduce composition or step wherein; or the technical field approaching with the utility model by the utility model for other, all belongs to protection domain of the present utility model.
Claims (4)
1. the circumferential apparatus for ultrasonic examination for heavier walled fitting, it is characterized in that: include standard sample I (91), standard sample II (92), supersonic reflectoscope (93) and processor (94), standard sample I (91) and standard sample II (92) are set to connect and demarcate with the probe contact of somascope (93) parameter value of somascope (93), processor (94) is set to connect with the output terminal of supersonic reflectoscope (93), the compressional wave of supersonic reflectoscope (93) and standard sample I (91), the incident angle of standard sample II (92) and heavier walled fitting is set to 42-48 °.
2. the circumferential apparatus for ultrasonic examination for heavier walled fitting according to claim 1, is characterized in that: the incident angle of the compressional wave of supersonic reflectoscope (93) and standard sample I (91), standard sample II (92) and heavier walled fitting is set to 45 °.
3. the circumferential apparatus for ultrasonic examination for heavier walled fitting according to claim 1, is characterized in that: standard sample I (91) is set to CSK-1A test block when the external diameter when heavier walled fitting is greater than 500mm; when being less than 500mm, the external diameter when heavier walled fitting is set to include arc sections I (1) and arc sections II (2) with standard sample I (91), the mode that arc sections I (1) is set to overlap according to the periphery in a side with arc sections II (2) superposes and connects, on the periphery of arc sections I (1), being provided with through hole (12) that V-arrangement open slot (11) and diameter are 1.8-2.2mm the center line of V-arrangement open slot (11) and through hole (12) is separately positioned in the same radius of arc sections I (1), distance between the periphery of the center of circle of through hole (12) and arc sections I (1) is set to 18-22mm, the center of circle that is provided with the identical Ban of radius R 2 garden open slot (13) the Bing Ban garden open slot (13) of radius and arc sections II (2) at arc sections I (1) and arc sections II (2) stack position is arranged on the periphery of arc sections I (1) and with the center of circle of through hole (12) on the same diameter line of arc sections I (1), angle between the notch of V-arrangement open slot 11 is set to 58-62 °, when the external diameter of heavier walled fitting is set to 44-56mm, arc sections I (1) radius R 1 is set to 25mm, the radius R 2 of arc sections II (2) is set to 20mm, when the external diameter of heavier walled fitting is set to 54-66mm, the radius R 2 that arc sections I (1) radius R 1 is set to 30mm, arc sections II (2) is set to 25mm, when the external diameter of heavier walled fitting is set to 66-80mm, the radius R 2 that arc sections I (1) radius R 1 is set to 37mm, arc sections II (2) is set to 30mm, when the external diameter of heavier walled fitting is set to 80-100mm, the radius R 2 that arc sections I (1) radius R 1 is set to 44mm, arc sections II (2) is set to 35mm, when the external diameter of heavier walled fitting is set to 100-120mm, the radius R 2 that arc sections I (1) radius R 1 is set to 55mm, arc sections II (2) is set to 45mm,
When the external diameter of heavier walled fitting is set to 120-150mm, the radius R 2 that arc sections I (1) radius R 1 is set to 68mm, arc sections II (2) is set to 55mm; When the external diameter of heavier walled fitting is set to 150-190mm, the radius R 2 that arc sections I (1) radius R 1 is set to 85mm, arc sections II (2) is set to 70mm;
When the external diameter of heavier walled fitting is set to 190-230mm, the radius R 2 that arc sections I (1) radius R 1 is set to 105mm, arc sections II 2 is set to 85mm; When the external diameter of heavier walled fitting is set to 230-290mm, the radius R 2 that arc sections I 1 radius R 1 is set to 130mm, arc sections II (2) is set to 105mm;
When the external diameter of heavier walled fitting is set to 290-370mm, the radius R 2 that arc sections I (1) radius R 1 is set to 165mm, arc sections II (2) is set to 135mm; When the external diameter of heavier walled fitting is set to 370-450mm, the radius R 2 that arc sections I (1) radius R 1 is set to 205mm, arc sections II (2) is set to 170mm; When the external diameter of heavier walled fitting is set to 400-500mm, the radius R 2 that arc sections I (1) radius R 1 is set to 230mm, arc sections II (2) is set to 190mm;
It is corresponding and be provided with through hole (12) in standard sample II (92) that the parameter value of standard sample II (92) is set to size with heavier walled fitting.
4. the circumferential apparatus for ultrasonic examination for heavier walled fitting according to claim 1, is characterized in that: the frequency of operation that supersonic reflectoscope (93) is set to pulse reflection hyperchannel or single channel ultrasonic wave defectoscope piezoelectric supersonic probe is that the wafer length of 1MHz-15MHz, single probe or diameter should be less than or equal to when 25mm and artificial defect length are less than 20mm and should be less than or equal to 12mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420159653.XU CN203849208U (en) | 2014-04-03 | 2014-04-03 | Circumferential ultrasonic inspection device applied to thick-wall pipe |
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| CN201420159653.XU CN203849208U (en) | 2014-04-03 | 2014-04-03 | Circumferential ultrasonic inspection device applied to thick-wall pipe |
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| CN201420159653.XU Expired - Fee Related CN203849208U (en) | 2014-04-03 | 2014-04-03 | Circumferential ultrasonic inspection device applied to thick-wall pipe |
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| CN (1) | CN203849208U (en) |
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Granted publication date: 20140924 Termination date: 20170403 |