CN202676673U - Steel pipe ultrasonic flaw detection composite probe device - Google Patents
Steel pipe ultrasonic flaw detection composite probe device Download PDFInfo
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- CN202676673U CN202676673U CN 201220385141 CN201220385141U CN202676673U CN 202676673 U CN202676673 U CN 202676673U CN 201220385141 CN201220385141 CN 201220385141 CN 201220385141 U CN201220385141 U CN 201220385141U CN 202676673 U CN202676673 U CN 202676673U
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Abstract
The utility model discloses a steel pipe ultrasonic flaw detection composite probe device and belongs to the field of ultrasonic detection technology. A plurality of probe groups are arranged in a probe frame side by side. A width detecting probe group is located in the middle; the ultrasonic emission direction of the width detection probe group is vertically upward; and the width detection probe group is used for detection of the width of a pipe fitting. Longitudinal flaw detecting probe groups are located on two sides of the width detecting probe group and are used for detection of longitudinal flaws of the pipe fitting. Lateral flaw detecting probe groups are arranged on outer sides of the longitudinal flaw detecting probe groups and are used for detection of lateral flaws of the pipe fitting. The longitudinal flaw detecting probe groups and the lateral flaw detecting probe groups can interchange locations. All the probe groups are arrayed in arc shape, and angles of all the probe groups can be adjusted. Due to the fact that the plurality of probe groups are arrayed side by side, the steel pipe ultrasonic flaw detection composite probe device, from the installation perspective, is compact in structure and saves installation space; from the function perspective, has the functions of width detection, lateral detection and longitudinal detection, and can finish all work of the width detection and flaw detection by scanning only for one time so that efficiency is improved; and from the perspective of scan covering, is small in dead covering zone due to the fact that probes scan the pipe fitting from head to tail at detection time, and improves detection quality. The steel pipe ultrasonic flaw detection composite probe device is generally applicable to detection of seamless steel tubes or natural gas bottles.
Description
Technical field
The utility model belongs to the ultrasonic detecting technology field, particularly a kind of steel tube supersonic flaw detecting coupling probe device.
Background technology
In recent years, the demand of weldless steel tube is increasing, and its output is also more and more higher.Use also more and more for the ultrasound examination of steel pipe.
Ultrasonic detection method has a lot, and pulse reflection method is exactly wherein a kind of.So-called pulse reflection method, just refer in certain sequential by once or multiple pulses excite transducer to transmit and receive ultrasonic signal, under the effect of synchronizing signal, pulse position and pulse power that detecting instrument returns by reception are judged defective or detect thickness.What transmit and receive ultrasonic signal is exactly transducer, i.e. probe.
In ultrasound examination, Ultrasonic generation and receiving course are a kind of processes of energy conversion, this conversion is by popping one's head in to realize that the effect of probe is exactly to convert electric energy to ultrasonic energy (generation ultrasound wave) and ultrasonic energy is converted to electric energy (reception ultrasound wave).Be that the device of another kind of form is called transducer with energy from a kind of formal transformation, probe is exactly a kind of energy transducer of electroacoustic energy conversion.
Ultrasonic Detection the earliest is the single channel handheld instrument, only has a probe, does blanket type scanning detection by the mode that the people hands at workpiece, and speed is slow, and efficient is low, and can only by the ultrasonic echo analysis, can not preserve in real time the detection data.Present digital multi-channel automatic detection instrument is equipped with the Multichannel combination probe, realizes that automatically scanning detects, and preserves the workpiece sensing data fully, and speed is fast, and efficient is high.In this process, the arrangement mode of probe is just very important, and reasonably arrangement mode is more efficient.
Ultrasound examination mainly comprises thickness measuring and flaw detection, and thickness measuring refers to automatically calculate pipe fitting thickness by the ultrasonic echo signal that returns.Flaw detection refers to by ultrasonic echo automatic signal detection inside pipe fitting defectiveness whether, in order to judge whether this pipe fitting is available.In ultrasound examination, regulation pipe fitting defective as shown in Figure 3, the pipe fitting defective is divided into transverse defect (12,14) and longitudinal defect (11,13) by orientation, opsition dependent is divided into inherent vice (11,12) and External Defect (13,14), in the testing process, this type of all on pipe fitting defectives all must be detected to omit, otherwise will bring hidden danger.
In ultrasound wave detected automatically, thickness measuring and flaw detection all were absolutely necessary, and especially for the gas cylinder pipe fitting, its thickness and defective have strict demand, do not meet the demands and can not use, otherwise will cause the gas cylinder explosion, cause life and property loss.So development seems particularly important once the complete ultrasound wave automatic measuring thickness fault detection system of cover.
In ultrasound examination, transducer cans be compared to people's eyes, does not have transducer can't finish detection.The function of transducer and arrangement mode directly determine the measuring ability that this detection system is achieved.In existing technology, the arrangement mode of transducer has a variety of, but certain defect is arranged.Modally exactly the probe group is kept at a certain distance away in one linely, when pipe fitting moved to the detection position, the probe group manually or automatically fell successively, and then spiral scan is to detect whole pipe fitting.The deficiency that this arrangement mode brings is, can only adopt the water film type coupling scheme, coupling instabilty, and the interference that brings when probe falls will affect testing result.
Existing checkout equipment, function are all more single, and what have can only thickness measuring, can not detect the pipe fitting defective; What have can only detect longitudinal defect or can only detect transverse defect, does not have thickness measuring function.Under these circumstances, if same pipe fitting thickness measuring, transverse defect and longitudinal defect all need to detect, and that will need to detect three times at least, and detection efficiency is low.
Summary of the invention
For overcoming the above problems, the utility model provides a kind of steel tube supersonic flaw detecting coupling probe device, detects in the time of with realization thickness measuring, transverse defect and longitudinal defect.
The technical solution adopted in the utility model is:
Be arranged side by side a plurality of probe groups in probe holder, in the middle of being positioned at is the Thicknesser probe group, and the ultrasound emission perpendicular direction makes progress, in order to measure pipe fitting thickness; Hinder the probe group in Thicknesser probe group both sides for survey is vertical, be divided into vertical left probe group and the right probe group of the vertical wound of survey of hindering of survey, in order to detect the pipe fitting longitudinal defect; The outside is divided into and surveys the front probe group of horizontal wound and survey the rear probe group of horizontal wound, in order to detect the pipe fitting transverse defect for surveying horizontal wound probe group again; All probe groups are arranged in arc, and the angle of each probe group is adjustable.Surveying the probe group installation site of indulging the probe group of hindering and surveying horizontal wound can exchange.
Described probe group is 5 groups, and middle is one group of Thicknesser probe group; For surveying the vertical left probe group of hindering, the ultrasound emission direction is the left side of Thicknesser probe group in Thicknesser probe group left side; Thicknesser probe group right side is for surveying the vertical right probe group of hindering, and the ultrasound emission direction is the right side of Thicknesser probe group; Surveying vertical left side of hindering left probe group is probe group before the horizontal wound of survey, and the ultrasound emission direction is the working direction of probe apparatus; Survey vertical right side of hindering right probe group for surveying the rear probe group of horizontal wound, the ultrasound emission direction is the probe apparatus direction of retreat.
Described Thicknesser probe group is normal probe, and the setting angle of wafer is zero, the ultrasound wave Vertical Launch.
Described survey is vertical, and to hinder the probe group be angle probe, and wafer is centroclinal to probe arc that group consists of, and the angle of inclination is 35 to spend to 45 degree; The horizontal wound probe of described survey group is angle probe, wherein surveys the wafer of the front probe group of horizontal wound to the working direction inclination of probe apparatus, surveys the wafer orientation of the rear probe group of horizontal wound to the direction of retreat inclination of probe apparatus, and the angle of inclination is that 35 degree are to 45 degree.
The upper surface of described probe holder is arc, and the two ends of probe holder arrange the probe holder supporting roller.
The beneficial effects of the utility model are:
Whole system is used for the Ultrasonic Nondestructive of steel pipe or gas cylinder, and probe connects upper ultra-sonic defect detector and is installed on the gearing, transmits and receives ultrasonic signal aftertreatment imaging by the software control probe according to certain sequential.
Probe adopts many group probes mode arranged side by side to arrange, and on installing, compact conformation has been saved installing space; On function, thickness measuring, horizontal and vertical all be included in, single pass can be finished all working to thickness measuring and carrying out flaw detection, has improved efficient.Cover from scanning, probe is scanned up to the pipe tail from tube head during detection, and it is little to cover complete blind area, has improved the detection quality.Generally be applicable to the detection of weldless steel tube or natural gas bottle.
Description of drawings
Fig. 1 is probe group arrangement mode synoptic diagram;
Fig. 2 is the radially synoptic diagram of probe group arrangement mode);
Fig. 3 is the definition of pipe fitting defective;
Fig. 4 is measure thickness principle figure;
Fig. 5 is the schematic diagram of vertically detecting a flaw;
Fig. 6 is the schematic diagram of laterally detecting a flaw;
Fig. 7 is the whole structure figure of this device;
Fig. 8 is the probe holder synoptic diagram;
Fig. 9 is the synoptic diagram of probe holder above pipe fitting.
Number in the figure:
1-Thicknesser probe group; 2-surveys the vertical left probe group of hindering; 3-surveys the vertical right probe group of hindering; 4-surveys the front probe group of horizontal wound; 5-surveys the rear probe group of horizontal wound; 6-head angle regulating tank; The 7-stiff end of popping one's head in; The 8-probe holder; The 9-pipe fitting; 10-pipe fitting center; The vertical internal injury of 11-; The horizontal internal injury of 12-; The vertical wound of 13-; The horizontal wound of 14-; 15-water steel boundary wave; 16-vertical sonde inwall echo; 17-is outer defect waves vertically; The vertically interior defect waves of 18-; The laterally interior defective of 19-; 20-is outer defective laterally; The 21-ultrasonic detector; 22-ultrasonic signal line; The 23-electric rotating machine; The 24-tank; 25-probe holder supporting roller.
Embodiment
The utility model provides a kind of steel tube supersonic flaw detecting coupling probe device, below in conjunction with the drawings and specific embodiments the utility model is described further.
By Fig. 1, Fig. 2, Fig. 8 and shown in Figure 9, in probe holder 8, be arranged side by side a plurality of probe groups, in the middle of being positioned at is the Thicknesser probe group, the ultrasound emission perpendicular direction makes progress, in order to measure pipe fitting thickness; Hinder the probe group in Thicknesser probe group both sides for surveying to indulge, in order to detect pipe fitting longitudinal defect 11 and 13; The outside is the horizontal wound probe of side group again, in order to detect pipe fitting transverse defect 12 and 14; All probe groups are arranged in arc, and the angle of each probe group can be regulated by head angle regulating tank 6.
In present embodiment, the probe group is 5 groups altogether, and middle is one group of Thicknesser probe group 1; For surveying the vertical left probe group 2 of hindering, the ultrasound emission direction is the left side of Thicknesser probe group 1 in Thicknesser probe group 1 left side; Thicknesser probe group 1 right side is for surveying the vertical right probe group 3 of hindering, and the ultrasound emission direction is the right side of Thicknesser probe group 1; Surveying vertical left side of hindering left probe group 2 is probe group 4 before the horizontal wound of survey, and the ultrasound emission direction is the working direction of probe apparatus; Survey vertical right side of hindering right probe group 3 for surveying the rear probe group 5 of horizontal wound, the ultrasound emission direction is the probe apparatus direction of retreat.
When detecting the pipe fitting 9 of different-diameter, adjust respectively the angle of each probe group, so that each probe group is relative with pipe fitting center 10, adjust accordingly by the artificial defect on the sample pipe, so that angle reaches optimum detection position and fixing, the pipe fitting of later same diameter just can be finished detection under this angle.
Two servo-actuated bearings are respectively installed at the two ends of probe holder 8, and probe holder supporting roller 25 is installed on the servo-actuated bearing.So-called servo-actuated, refer to that probe holder 8 moves up and down along with the rotation of pipe fitting 9.In testing process, four servo-actuated bearings keep under the pressure-acting of buoyancy of water or spring and the pipe fitting Surface Contact.In the process of pipe fitting 9 rotations, because pipe fitting itself has certain flexibility, so pipe fitting 9 has beating of certain amplitude in the process of rotation, want probe cassette can keep and the pipe fitting Surface Contact, just must there be an effect defeating probe cassette, the general elastic force of selecting buoyancy of water or spring is like this so that detecting head surface and pipe fitting surface remain certain distance and fixing angle, to guarantee accuracy of detection.
In the actual testing process, probe holder 8 is installed within the tank 24, pile water in the tank 24 and do not have probe holder 8, pipe fitting 9 is fixed on tank 24 tops by electric rotating machine 23 driven rotary by clamp device, adjusts respectively the angle of every group of probe group and fixing by the sample pipe during detection.Change actual detection pipe fitting and start automatically and detect, in the testing process, pipe fitting 9 is the original place rotation under the drive of electric rotating machine 23, and probe holder 8 at the uniform velocity moves to the other end from an end of pipe fitting 9 with certain speed, realizes the spiral scan to the pipe fitting surface.In the scanning process, scan pitch can not cover greater than probe, otherwise will cause covering incomplete and undetected.So-called pitch is the pipe fitting distance that probe holder advances that rotates a circle.Ultrasonic detector 21 is installed in tank 24 1 sides near probe holder 8, the data communication device that the probe winding is received is crossed ultrasonic detector 21 and is gathered, send into computing machine by 22 outputs of ultrasonic signal line, be processed into picture and preservation by corresponding software again, can obtain thus thickness and the defect information image of whole pipe fitting.
During installation, probe holder 8 can place pipe fitting 9 tops or below, if probe cassette places the pipe fitting top, pipe fitting will submerge so, so that the pipe fitting surface is to being full of water between the probe group surface to guarantee coupling.
Survey that vertical to hinder the probe group be angle probe, the ultrasound wave emission of tilting is coupled into pipe fitting by water, will form a water steel boundary wave at the contact interface of water and pipe fitting.Because oblique incidence, a part of ultrasonic energy is reflected in the entry, and a part enters pipe fitting, and it is little a lot of that the energy that being reflected back pops one's head in is received is compared thickness measuring, so this water steel interface echo is lower than thickness measuring echo.The part ultrasound wave that enters pipe fitting will be at the inside pipe fitting Multi reflection, when pipe fitting inner wall or outer wall defectiveness, hyperacoustic most of energy will be returned probe by defect reflection, processed the formation reflection echo through instrument after the probe reception, defect waves 18 in the echo that inner wall defect forms is referred to as vertically, the echo that the outer wall defective forms are referred to as vertically outer defect waves 17.Whether instrument judges herein defectiveness by the reflection echo of software collection relevant position, thereby judges whether this pipe fitting is qualified.
The principle that detects transverse defect detects roughly the same with longitudinal defect, different is the orientation of probe wafer, the detected associated disadvantages echo that comes be laterally in defect waves 19 and horizontal outer defect waves 20.
Testing process is minute following several steps specifically:
(1) water filling in the feed trough, the water yield was not there to be probe group overlay area to get final product.Under the buoyancy of water effect, probe holder integral body will rise.
(2) put standard sample pipe, probe holder is with the decline certain distance under the pressure of pipe fitting.So that four probe holder supporting rollers on the probe holder are close to pipe fitting, certain to the distance between the pipe fitting to guarantee probe.
(3) open instrument, operating software.Under the control of software, the probe group transmits and receives ultrasonic signal according to certain sequential, transmits signals to Computer Processing through signal wire and draws.
(4) adjust head angle by standard sample pipe, by the artificial defect of correspondence, respectively each group head angle is adjusted to best angle position and fixing.
(5) unload the sample pipe, put actual pipe fitting to be detected, probe holder is moved to pipe fitting one end, start simultaneously walking and rotation, adjust pitch so that the probe spiral covers whole pipe fitting of scanning, computing machine draws defect map by software Real-time Collection signal.
(6) preserve scan-data image, analysis result.
(7) change next root pipe fitting, continue scanning.
Claims (5)
1. steel tube supersonic flaw detecting coupling probe device is characterized in that, is arranged side by side a plurality of probe groups in probe holder, and in the middle of being positioned at is the Thicknesser probe group, and the ultrasound emission perpendicular direction upwards; Hinder the probe group in Thicknesser probe group both sides for survey is vertical, be divided into vertical left probe group and the right probe group of the vertical wound of survey of hindering of survey; The outside is divided into and surveys the front probe group of horizontal wound and survey the rear probe group of horizontal wound for surveying horizontal wound probe group again; All probe groups are arranged in arc, and the angle of each probe group is adjustable; Surveying the probe group installation site of indulging the probe group of hindering and surveying horizontal wound can exchange.
2. steel tube supersonic flaw detecting coupling probe device according to claim 1 is characterized in that, described probe group is 5 groups, and middle is one group of Thicknesser probe group; For surveying the vertical left probe group of hindering, the ultrasound emission direction is the left side of Thicknesser probe group in Thicknesser probe group left side; Thicknesser probe group right side is for surveying the vertical right probe group of hindering, and the ultrasound emission direction is the right side of Thicknesser probe group; Surveying vertical left side of hindering left probe group is probe group before the horizontal wound of survey, and the ultrasound emission direction is the working direction of probe apparatus; Survey vertical right side of hindering right probe group for surveying the rear probe group of horizontal wound, the ultrasound emission direction is the probe apparatus direction of retreat.
3. steel tube supersonic flaw detecting coupling probe device according to claim 1 is characterized in that, described Thicknesser probe group is normal probe, and the setting angle of wafer is zero, the ultrasound wave Vertical Launch.
4. steel tube supersonic flaw detecting coupling probe device according to claim 1 is characterized in that, described survey is vertical, and to hinder the probe group be angle probe, and wafer is centroclinal to probe arc that group consists of, and the angle of inclination is 35 to spend to 45 degree; The horizontal wound probe of described survey group is angle probe, wherein surveys the wafer of the front probe group of horizontal wound to the working direction inclination of probe apparatus, surveys the wafer orientation of the rear probe group of horizontal wound to the direction of retreat inclination of probe apparatus, and the angle of inclination is that 35 degree are to 45 degree.
5. steel tube supersonic flaw detecting coupling probe device according to claim 1 is characterized in that, the upper surface of described probe holder is arc, and the two ends of probe holder arrange the probe holder supporting roller.
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|---|---|---|---|
| CN 201220385141 CN202676673U (en) | 2012-08-03 | 2012-08-03 | Steel pipe ultrasonic flaw detection composite probe device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385141 CN202676673U (en) | 2012-08-03 | 2012-08-03 | Steel pipe ultrasonic flaw detection composite probe device |
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| CN202676673U true CN202676673U (en) | 2013-01-16 |
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| CN103353480A (en) * | 2013-07-09 | 2013-10-16 | 中国科学院声学研究所 | Automatic ultrasonic flaw detection method and device for locomotive wheel shaft |
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- 2012-08-03 CN CN 201220385141 patent/CN202676673U/en not_active Expired - Fee Related
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