CN211014121U - Ultrasonic phased array detection device - Google Patents
Ultrasonic phased array detection device Download PDFInfo
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- CN211014121U CN211014121U CN201921061883.1U CN201921061883U CN211014121U CN 211014121 U CN211014121 U CN 211014121U CN 201921061883 U CN201921061883 U CN 201921061883U CN 211014121 U CN211014121 U CN 211014121U
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Abstract
The utility model belongs to the technical field of the welding seam detects, concretely relates to ultrasonic phased array detection device suitable for steel-pipe tower welding seam detects includes: the hoop is movably arranged on the steel pipe tower and comprises two semicircular hoop bodies with the same radian, two ends of each hoop body are respectively and fixedly provided with a connector, and the connectors are provided with screw holes for penetrating fastening bolts; the opposite parts of the two clamp bodies are respectively fixedly provided with a fixed plate, and a frame-shaped support frame is fixedly arranged on the fixed plates; the operation platform is fixedly arranged in the middle of the support frame, and a detector and a lifting platform for lifting the phased array probe are arranged on the operation platform; the lifting mechanism is fixedly arranged on the lifting platform; the phased array probe is movably arranged on the lifting mechanism and electrically connected with the detector; the phased array probe comprises a fixed block arranged in parallel with the steel tube tower and an energy converter arranged on the surface of the fixed block adjacent to the steel tube tower.
Description
Technical Field
The utility model belongs to the technical field of the welding seam detects, concretely relates to be applicable to steel-pipe tower welding seam detects
The ultrasonic phased array detection device.
Background
In recent years, with the pace of urban construction, the number of urban power transmission and transformation projects is increased, but the lines are moved
Under the condition that the corridor is increasingly tense, the steel pipe pole occupies small area, does not influence the land utilization, has simple pole and tower design structure,
The advantages of long service life, convenient construction and installation, low operation and maintenance cost and the like are widely applied to the power transmission line
Application is carried out.
Compared with the traditional angle steel tower, the steel pipe tower of the power transmission line has more welding components and mainly has K-shaped steel pipes
Welding of nodes, butt welding of steel pipes and neck flanges, T-shaped welding of steel pipes and plate flange stiffened plates, and steel
Welding of the pipe reinforcing plate, welding of the U-shaped groove and the U-shaped plate of the cross arm of the auxiliary steel pipe, welding of the U-shaped groove and the inserting plate and the like.
Common welding methods in steel tube tower production include manual arc welding, carbon dioxide gas shielded welding and submerged arc automatic welding
And (6) welding. The steel pipe tower of the power transmission line mainly adopts low-alloy high-strength steel, and welding defects generated in the welding process are mainly
The shape and size of the welding line and the reserved size of the gap do not meet the standard requirements, and undercut, welding beading, air holes,
Cracks, lack of fusion, lack of penetration, slag inclusions, etc. The presence of these weld defects destroys the integrity of the weld and
the stress uniformity easily causes the phenomenon of stress concentration on a certain point, reduces the mechanical property of the welding joint, and shrinks
The short steel tube tower has long service life and can cause quality accidents in severe cases.
The steel tube tower is in a wind-blowing and rain-showering state for a long time, so that welding seams are inevitably generated in the long-term operation process
Quality problems, which will occur in severe cases, such as quality problems of welding seams of 2-base steel tube towers of certain power supply companies
The problem of tower collapse accident in severe weather conditions such as ice coating and the like, which causes power failure in peripheral areas for 72 hours, is mainly
The reason is that: the welding seam which causes tower collapse and fracture due to out-of-control welding process is not bottomed, and the welding bead only occupies the thickness of the welding seam
Description
One third, the weld strength of the upper surface welding layer is seriously unqualified; and as ever-occurring steel of a certain power supply company of national grid
The pipe tower cross arm is determined as the tower cross arm in the manufacturing process from the 1CM fracture accident at the right side of the flange connecting welding line
In the middle, because the welding seam has the defect of fusion welding, the power failure accident of the line is caused, and the serious personal injury is not caused after the accident
Loss of life.
In order to solve the problem of welding seams, the publication number CN104764807B discloses an in-service transmission steel pipe tower welding
The automatic ultrasonic seam detecting system includes one longitudinal scanning vehicle and one axial scanning vehicle for longitudinal seam and axial seam
Scanning axial welding seam, loading the circumferential scanning vehicle on the longitudinal scanning vehicle, and scanning the circumferential welding seam longitudinally when reaching the position of the circumferential welding seam
The scanning vehicle is separated to realize the independent scanning of the circumferential welding seam, and the full requirements of the circumferential welding seam and the longitudinal welding seam can be met
The part covering is swept and is wiped and detected the requirement, this welding seam detecting system is based on the ultrasonic detection principle, and ultrasonic probe needs to be followed
Frequent moving scanning is carried out along the circumferential direction and the axial direction of the steel pipe, the detection process is complex, and the consumed time is long. Conventional steel
The defects of the nondestructive testing method for the pipe welding seam can not be visually presented, the testing result is restricted by the testing level of testing personnel,
the detection quality and the detection efficiency are influenced. In addition, ultrasonic testing uses a single-chip probe to emit an acoustic beam at a location
In some cases dual wafer probes or single wafer focus probes are also used to reduce blind spots and improve resolution. But instead of the other end of the tube
In either case, the ultrasound field propagates in the medium according to a single-angle axial direction,
single angle scanning limits the ability of ultrasonic detection to be both qualitative and quantitative for different direction deficits. Therefore, the temperature of the molten metal is controlled,
most "effective" standards require scanning of multiple angle beams to improve the pick rate for
Detection of conditions with complex geometric shapes, large wall thicknesses or limited probe scanning space is difficult to achieve.
In addition, the probes in the prior art are all wedge-shaped, when the ultrasonic probe is arranged on the surface of the steel pipe,
the probe is in line contact with the surface of the steel pipe, the coupling effect is poor, and the ultrasonic waves in the probe are incident to the surface of the steel pipe from the wedge block
When the ultrasonic wave beam is incident on the steel pipe wall, the ultrasonic wave is diffused again, and the directivity of the ultrasonic wave is changed
Poor, the echo sound energy is weakened, and the detection sensitivity is low.
Disclosure of Invention
Description
An object of the utility model is to provide a problem to exist among the prior art provides and is applicable to steel-pipe tower
An ultrasonic phased array detection device for detecting a weld joint, which is based on the phased array detection principle and realizes the aim of alignment
The accurate judgment of the nature, the size and the severity of the weld defects of the steel tube tower in service improves the defect detection quality and
the detection efficiency guarantees the safe and stable operation of the power grid.
The technical scheme of the utility model is that:
the utility model provides an ultrasonic phased array detection device, is applied to the detection of steel pipe tower welding seam in active service, includes: movable facility
The hoop is arranged on the steel pipe tower and comprises two semicircular hoop bodies with the same radian, and each hoop body is clamped
The two ends of the hoop body are respectively fixedly provided with a connector, and the connector is provided with a screw for passing through the fastening bolt
An aperture; the opposite parts of the two clamp bodies are respectively and fixedly provided with a fixed plate, and the fixed plates are provided with
A frame-shaped support frame is fixedly arranged; an operating platform fixedly arranged in the middle of the support frame, and the operating platform
The detector and a lifting platform used for lifting the phased array probe are arranged on the base; lifting fixedly arranged on the lifting platform
A mechanism; the phased array probe is movably arranged on the lifting mechanism and electrically connected with the detector; the phased array
The probe comprises a fixed block arranged in parallel with the steel tube tower and a probe body arranged on the surface of the fixed block adjacent to the steel tube tower
A transducer.
Specifically, the lifting mechanism comprises a base, a scissor type lifting mechanism fixedly arranged on the base, a lifting rod and a lifting rod,
Supporting plate fixedly arranged at top of scissor type lifting mechanism and clamping phase fixedly arranged on supporting plate
A probe clamping frame of the array control probe.
Specifically, the supporting plate is fixedly provided with a camera device.
Specifically, the transducer comprises a connecting surface and a piezoelectric wafer embedded on the connecting surface.
Specifically, the scissors type lifting mechanism comprises a connecting rod and a scissors type lifting mechanism with the lower end hinged with the connecting rod
A telescopic frame, a sliding chute for the connecting rod to slide is arranged on the base, and the connecting rod and the lifting driving source
The output shaft of the motor is fixedly connected.
The utility model has the advantages that: 1. the detection device comprises a clamp which is movably arranged on the steel tube tower,
the whole detection device can be fixed on any position and any angle of the steel tube tower through the hoop, and the angle can be adjusted
Description
The tightness of the whole clamp is suitable for steel pipe towers with different diameters; 2. the opposite parts of the two clamp bodies are respectively fixedly provided with
A fixed plate is arranged, a frame-shaped supporting frame is fixedly arranged on the fixed plate, and the middle part of the supporting frame is fixedly provided with
An operation platform, wherein the operation platform is provided with a detector and a lifting platform used for lifting the phased array probe,
the lifting platform is fixedly provided with a lifting mechanism, and the phased array probe is lifted to be detected and welded through the lifting mechanism
The position of the whole device is adjusted together with the clamp at the welding seam of the steel pipe tower to meet the detection of a short distance
Welding seams; 3. the phased array probe is movably arranged on the lifting mechanism and electrically connected with the detector, and is arranged on the lifting mechanism
The camera device on the mechanism can accurately determine the position of the welding seam through the information intuitively fed back by the camera device,
the piezoelectric wafer in the probe is excited by electronic method with time delay, so that it can make linear scanning time ratio
The mechanical scanning of the conventional probe is much faster, and the phased array probe can control the focusing depth, the deflection angle,
The wave beam width, the longitudinal injury detection, the transverse injury detection and the oblique injury detection can be flexibly changed among different detection modes without
Any mechanical transformation and adjustment are needed, which not only reduces the abrasion of the probe, but also avoids the adjustment of the device mechanism,
fast sequential excitation of multiple wafers in a phased array probe with a radiated acoustic field equivalent to that of a continuous machine for a single wafer probe
Mechanical displacement and steering are adopted, so that missed detection of transverse injury and oblique injury is avoided, and the detection reliability is greatly improved; 4 this true
The novel phased array probe comprises a fixed block arranged in parallel with the steel pipe tower, a fixed block arranged on the fixed block and a probe body arranged on the fixed block
The transducer on the adjacent surface of the steel pipe tower and the transducer fixing block arranged in parallel with the steel pipe tower are beneficial to replacing
The wafer of the energy device emits ultrasonic beams to detect the welding seam of the steel tube tower and detect the defect part of the welding seam according to the return
The wave signal, and then obtaining the position information of the defect part, the echo signal of the defect part and the normal reflected signal
The numbers are different in position and appear independently, interference is small, missing detection is not easy to occur, and the welding seam of the steel pipe tower is realized
Nondestructive testing, and the complex procedure of twice testing in the prior art is avoided. Conventional ultrasonic probe
When the weld joint is detected, the incident direction is as perpendicular as possible to the direction of the weld joint defect, and the ultrasonic wave of the conventional weld joint
During detection, the principle can not be realized, and the detection can only be completed by adopting an oblique incidence mode, and the utility model discloses
The phased array probe provided by the model is arranged on the side of the steel pipe tower in parallel, and can realize the defect of a vertical incidence welding seam
Description
So that the whole welding seam section can be covered, the detection can realize three-dimensional scanning, and incident sound beams and welding
The defects of cracks, unfused, incomplete penetration and the like in the seam are basically vertical, so that the operation method of the detection process can be realized
Convenient and easy to master and has high working efficiency.
The utility model provides a detection device realizes at labour steel pipe tower welding seam based on ultrasonic phased array detects technique
The accurate judgment of the nature, size and severity of the defect improves the detection quality and efficiency of the defect and ensures the quality and efficiency of the defect
The safe and stable operation of the power grid.
Drawings
Fig. 1 is a schematic cross-sectional structure of the present invention;
FIG. 2 is a schematic structural view of the elevating mechanism;
FIG. 3 is a schematic diagram of a phased array probe and scanning principle;
in fig. 4, a is a schematic diagram of the phased array probe for realizing focusing, and b is a schematic diagram for realizing beam deflection.
1 steel pipe tower, 2 clamps, 3 fastening bolts, 4 fixing plates, 5 support frames, 6 operating platforms and 7 detection
Instrument, 8 lifting table, 9 base, 10 scissor type lifting mechanism, 11 supporting plate, 12 probe fixing frame and 13 probe
Head, 14 wedge, 15 transducer, 16 camera.
Detailed Description
Referring to fig. 1-4, the utility model provides an ultrasonic phased array detection device, which is applied to in-service steel
Detection of a pipe tower weld comprising: the clamp 2 is movably arranged on the steel pipe tower 1, and the clamp 2 comprises
Two semicircular clamp bodies with the same radian, two ends of each clamp body are respectively and fixedly provided with a connector,
the connecting head is provided with a screw hole for penetrating the fastening bolt 3; the two clamp bodies are arranged at opposite positions
The fixing plates 4 are respectively and fixedly arranged, and a frame-shaped supporting frame 5 is fixedly arranged on the fixing plates 4; fixed device
An operating platform 6 arranged in the middle of the support frame 5, wherein a detector 7 and a lifting device are arranged on the operating platform 6
A lifting platform 8 for lifting the phased array probe 13; a lifting mechanism fixedly arranged on the lifting platform 8; is movably arranged at
The phased array probe 13 is electrically connected with the detector on the lifting mechanism; the phased array probe 13 comprises steel
A fixed block 14 arranged in parallel with the steel tube tower 1, and an energy conversion device arranged on the surface of the fixed block 14 adjacent to the steel tube tower 1
And (4) a device (15).
Description
The lifting mechanism comprises a base 9, a scissor type lifting mechanism 10 fixedly arranged on the base 9,
A supporting plate 11 fixedly arranged on the top of the scissor type lifting mechanism 10 and a device fixedly arranged on the supporting plate 11
A probe clamping frame 12 for clamping the phased array probe, the base 9 and the supporting plate 11 are fixed
The camera device 16 is arranged, the position of the welding seam can be accurately determined through information intuitively fed back by the camera device 16,
the scissors type lifting mechanism 10 comprises a connecting rod and a scissors type telescopic frame with the lower end hinged with the connecting rod
A sliding groove for the sliding of the connecting rod is arranged on the base (9), and the output of the connecting rod and the lifting driving source
The shaft is fixedly connected.
The transducer 15 comprises a connecting surface and piezoelectric wafers embedded on the connecting surface, wherein each piezoelectric wafer is called
The piezoelectric crystal array is a unit, and each unit is controlled by an electronic system according to a certain excitation rule and a certain time sequence, so that the piezoelectric crystal array
The ultrasound waves emitted by the elements of the array are superimposed into a new wave front, and, likewise, during the reception of the reflected waves,
according to a certain receiving rule and the receiving of time sequence control unit and making signal synthesis, then making the synthesis result be properly
And displaying the form. The phased array probe can realize ultrasonic sector scanning or linear scanning with fixed and adjustable focus
Even realizing dynamic focusing, the control array technology can carry out electronic scanning which is one quantity faster than the common raster scanning
The grade and the detection result can be recorded in an imaging way, and a phased array probe can cover various applications, unlike the prior art
The common ultrasonic probe has single and limited application; the probe is small and exquisite, and can complete the multi-time reciprocating scanning of a plurality of single probes
And (4) completing the detection task.
Use the utility model provides a during phased array detection device at first correspond the card with clamp 2 and wait to detect and weld
Fastening bolts 3 are used for screwing and fixing the slotted steel pipe tower; then starting up and down driving source to drive
The connecting rod makes the connecting rod slide in the sliding groove on the base 9, thereby driving the scissors type extension of the scissors type lifting mechanism
The frame is lifted and stops when the frame is lifted to the required height; at the moment, the welding seam problem is shot through the camera device
In position, the angle of the lower hoop 2 is finely adjusted by rotation, so that the phased array probe on the lifting mechanism can be better adjusted
Close to the problem position of the welding seam, improve the defect detection quality and detection efficiency, and directly sweep through the phased array probe
The scanning result is displayed by the detector 7.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to illustrate the technical solutions of the present invention
Description
A limitation thereof; although the present invention has been described in detail with reference to the preferred embodiments, it is not uncommon in the art to practice the present invention
The skilled person will understand that: can still be modified or right to the specific embodiments of the present invention
Equivalent substitution is carried out on partial technical characteristics; without departing from the spirit of the technical proposal of the utility model, the utility model should be all contained
The utility model discloses cover in the middle of the technical scheme scope of the claim.
Claims (5)
1. The utility model provides an ultrasonic phased array detection device, is applied to the detection of steel pipe tower welding seam in active service, its characterized in that includes:
the clamp (2) is movably arranged on the steel pipe tower (1), and the clamp (2) comprises two same arcs
The semicircular clamp body of degree, the both ends of every clamp body are fixed respectively and are provided with the connector, and the last division of connector
A screw hole for passing through the fastening bolt (3) is arranged; the opposite parts of the two clamp bodies are respectively fixed
The device is provided with a fixed plate (4), and a frame-shaped support frame (5) is fixedly arranged on the fixed plate (4);
an operating platform (6) fixedly arranged in the middle of the support frame (5), wherein the operating platform (6) is provided with
A detector (7) and a lifting platform (8) for lifting the phased array probe (13) are arranged;
a lifting mechanism fixedly arranged on the lifting platform (8); the movable device is arranged on the lifting mechanism and electrically connected with the detector
A phased array probe (13) that is connected; the phased array probe (13) is parallel to the steel pipe tower (1)
A fixed block (14) arranged and an energy conversion device arranged on the surface of the fixed block (14) adjacent to the steel tube tower (1)
And a device (15).
2. The ultrasonic phased array inspection device of claim 1, wherein the lifting mechanism comprises
A base (9), a scissor type lifting mechanism (10) fixedly arranged on the base (9), and a scissor fixedly arranged on the scissor
A supporting plate (11) at the top of the lifting mechanism (10) and a clamp fixedly arranged on the supporting plate (11)
A probe holder (12) holding a phased array probe.
3. The ultrasonic phased array inspection device as claimed in claim 2, wherein said support plate (11)
An image pickup device (16) is fixedly arranged on the upper portion.
4. The ultrasonic phased array inspection device as claimed in claim 1, wherein said transducer (15)
Including connecting the face and inlaying the piezoelectric wafer on connecting the face.
5. The ultrasonic phased array inspection device of claim 2, wherein the scissor lift mechanism
(10) Comprises a connecting rod and a scissor type telescopic frame with the lower end hinged with the connecting rod, wherein a base (9) is provided with
A sliding groove for sliding the connecting rod is arranged, and the connecting rod is fixedly connected with an output shaft of the lifting driving source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921061883.1U CN211014121U (en) | 2019-07-09 | 2019-07-09 | Ultrasonic phased array detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921061883.1U CN211014121U (en) | 2019-07-09 | 2019-07-09 | Ultrasonic phased array detection device |
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| Publication Number | Publication Date |
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| CN211014121U true CN211014121U (en) | 2020-07-14 |
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| CN201921061883.1U Active CN211014121U (en) | 2019-07-09 | 2019-07-09 | Ultrasonic phased array detection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208380A (en) * | 2019-07-09 | 2019-09-06 | 国网河南省电力公司周口供电公司 | A kind of ultrasonic phase array detection device and its method for steel tube tower weld seam detection |
| CN112630300A (en) * | 2020-12-11 | 2021-04-09 | 东莞先知大数据有限公司 | Intelligent Internet of things ultrasonic probe system and ultrasonic probe replacement prompting method |
| CN113325083A (en) * | 2021-06-11 | 2021-08-31 | 广西电网有限责任公司电力科学研究院 | GIS shell phased array detection device |
-
2019
- 2019-07-09 CN CN201921061883.1U patent/CN211014121U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208380A (en) * | 2019-07-09 | 2019-09-06 | 国网河南省电力公司周口供电公司 | A kind of ultrasonic phase array detection device and its method for steel tube tower weld seam detection |
| CN112630300A (en) * | 2020-12-11 | 2021-04-09 | 东莞先知大数据有限公司 | Intelligent Internet of things ultrasonic probe system and ultrasonic probe replacement prompting method |
| CN112630300B (en) * | 2020-12-11 | 2021-10-12 | 东莞先知大数据有限公司 | Intelligent Internet of things ultrasonic probe system and ultrasonic probe replacement prompting method |
| CN113325083A (en) * | 2021-06-11 | 2021-08-31 | 广西电网有限责任公司电力科学研究院 | GIS shell phased array detection device |
| CN113325083B (en) * | 2021-06-11 | 2023-06-13 | 广西电网有限责任公司电力科学研究院 | GIS shell phased array detection device |
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