CN205210023U - Pipe detection device - Google Patents
Pipe detection device Download PDFInfo
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- CN205210023U CN205210023U CN201520907723.XU CN201520907723U CN205210023U CN 205210023 U CN205210023 U CN 205210023U CN 201520907723 U CN201520907723 U CN 201520907723U CN 205210023 U CN205210023 U CN 205210023U
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- eddy current
- sector structure
- central shaft
- shaft block
- fan
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Abstract
The utility model provides a pipe detection device, including eddy current inspection head, eddy current inspection appearance, video detector and industrial computer, the eddy current inspection head has twined sectorial exciting coil and sectorial detecting coil including center pin piece and a plurality of fan -shaped structure respectively along the circumference of every fan -shaped structure, and a plurality of fan -shaped structures are around be connected center pin piece and the cylindrical structure of a plurality of fan -shaped structural formations with the center pin piece through the spring outside the center pin piece and respectively, the video detector with the one end of center pin piece is connected, the eddy current inspection appearance is connected with eddy current inspection head and industrial computer through the data line respectively, the video detector is connected with industrial computer through the data line. The utility model discloses a fan -shaped eddy current inspection coil array mode of arranging, can accomplish eddy current inspection and video visual inspection simultaneously, effectively detect corruption, the crackle on pipeline internal surface and nearly surface, defects such as deformation, its detection effect is good, detect the precision height.
Description
Technical field
The utility model relates to a kind of checkout equipment, particularly relates to a kind of checkout equipment for detecting various pipes in petrochemical industry and power industry.
Background technology
Various pipes in petrochemical industry and power industry all needs to check it, to guarantee the safe operation of pipeline and relevant device after use some cycles.EDDY CURRENT and visual examination are the lossless detection methods that current pipe inspection is conventional.EDDY CURRENT can detect the burn into crackle on inner surface of pipeline and nearly surface, and the defects such as deformation, visual examination can detect gross imperfection and the inside surface situation of inner surface of pipeline.
Current, the scanner for pipe inspection adopts the eddy current sensor of coaxial test coil of eddy current pattern, and this eddy current sensor has certain restriction for internal diameter inspection, is unsuitable for detecting the larger pipeline of internal diameter.EDDY CURRENT for large diameter pipeline generally adopts the eddy current sensor of point-like test coil of eddy current arranged in arrays or the rotating vortex sensor of point-like test coil of eddy current High Rotation Speed.There is check frequency in above two kinds of eddy current sensors, i.e. gap in use between points.Therefore all can not reach the detection completely to inner surface of pipeline and nearly surface, therefore, how to detect completely inner surface of pipeline and nearly surface is those skilled in the art's technical issues that need to address.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of can effectively to the pipe detection device that inner surface of pipeline and nearly surface detect, to overcome the defect in prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of pipe detection device, comprises EDDY CURRENT head, eddy current testing instrument, video detector and industrial computer; Described EDDY CURRENT head comprises central shaft block and multiple sector structure, circumference along each sector structure is wound with fan-shaped drive coil and fan-shaped magnetic test coil respectively, multiple sector structure to be centered around outside central shaft block and to be connected with central shaft block respectively by spring, and central shaft block and multiple sector structure form cylindrical structural; Described video detector is connected with one end of described central shaft block, and described eddy current testing instrument is connected with industrial computer with EDDY CURRENT head respectively by data line, and described video detector is connected with industrial computer by data line.
Preferably, each sector structure is connected with central shaft block by three springs.
Preferably, described EDDY CURRENT head is provided with abutment ring.
Preferably, described sector structure is provided with even number, and the end face centre position of described sector structure extends to form protuberance vertically, and adjacent sector structure turns upside down placement.
Preferably, described video detector comprises main part, described main part is provided with illuminating lamp and camera, and described main part is connected with described central shaft block.
Further, the anti-collision side be arranged on main part is provided with outside described illuminating lamp and camera.
As mentioned above, a kind of pipe detection device of the utility model, has following beneficial effect:
The utility model have employed the mode of fan-shaped test coil of eddy current arranged in arrays, the placement and sector structure turns upside down, adjacent two sector structures make drive coil and magnetic test coil overlap, and then ensure can effectively to be detected when moving integrally in all positions of pipeline in EDDY CURRENT head circumference.When reality uses, the cylindrical outer diameter size that sector structure and central shaft block can be regulated to be formed by the quantity adjusting sector structure, and then the pipeline of different inner diameters size can be detected.The utility model can complete EDDY CURRENT and video visual examination simultaneously, can the burn into crackle on effectively testing pipes inside surface and nearly surface, and the defects such as deformation, its Detection results is good, for technician brings great convenience.
Drive coil in the utility model and magnetic test coil are fan-shaped, its sensing range on the face of cylinder is more much larger than selecting (cake) coil, therefore the coil quantity covered required for inner surface of pipeline is far smaller than prior art, reduces the requirement of array technique to eddy current detecting equipment.On the other hand, (cake) coil of selecting of prior art is only made up of single coil, and in the utility model, single sector structure is made up of two coils (drive coil and magnetic test coil), differential signal can also be realized to export while formation array, extraneous factor can be reduced in testing process on the impact of eddy current signal.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model.
Fig. 2 is the schematic diagram of EDDY CURRENT head and video detector in the utility model.
Fig. 3 is the face upwarding stereogram of EDDY CURRENT head and video detector in the utility model.
Fig. 4 is the matching chart of central shaft block and sector structure in the utility model.
In figure: 1, EDDY CURRENT 2, eddy current testing instrument
3, video detector 4, industrial computer
5, drive coil 6, magnetic test coil
7, abutment ring 11, central shaft block
12, sector structure 13, spring
14, signaling interface 15, end cap
121, protuberance 31, main part
32, illuminating lamp 33, camera
34, anti-collision side
Embodiment
The structure that Figure of description illustrates, ratio, size etc., content all only in order to coordinate instructions to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop in scope that technology contents that the utility model discloses can contain.Simultaneously, quote in this instructions as " on ", D score, "front", "rear", the term such as " centre ", also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
As Figure 1-Figure 4, the utility model is a kind of pipe detection device, and it comprises EDDY CURRENT 1, eddy current testing instrument 2, video detector 3 and industrial computer 4.As shown in figs 2-4, described EDDY CURRENT 1 comprises central shaft block 11 and multiple sector structure 12, circumference along each sector structure 12 is wound with fan-shaped drive coil 5 and fan-shaped magnetic test coil 6 respectively, multiple sector structure 12 to be centered around outside central shaft block 11 and to be connected with central shaft block 11 respectively by spring 13, central shaft block 11 and multiple sector structure 12 form cylindrical structural, to adapt to the shape of pipeline.Multiple sector structures 12 in the utility model define fan-shaped test coil of eddy current array.When EDDY CURRENT 1 is moved in the duct, multiple sector structure 12 can be close to inner surface of pipeline due to the effect of spring 13, not only reduces the Lift-off effect of drive coil 5 and magnetic test coil 6, also ensure that the stability of EDDY CURRENT 1 in motion process.Described video detector 3 is connected with one end of described central shaft block 11, with reference to figure 1, described eddy current testing instrument 2 is connected with industrial computer 4 respectively by data line and EDDY CURRENT 1, and described video detector 3 is connected with industrial computer 4 by data line.During work, an EDDY CURRENT 1 collection data, and then signal is passed in industrial computer 4 for technician's reference by eddy current testing instrument 2 analyzing and processing; Video detector 3 pairs of pipelines are directly recorded a video sampling, are then passed to by video in industrial computer 4 and watch analysis for technician.Above-mentioned Lift-off effect is Eddy Current Nondestructive Testing term, when specifically referring to that test coil of eddy current (being equivalent to the drive coil 5 in the utility model and magnetic test coil 6) changes with the spacing of tested pipeline, and the effect that its impedance vector changes.
Drive coil 5 described in the utility model and magnetic test coil 6 have identical coil parameter, are formed with same spread pattern and number of turns coiling by the copper cash of identical wire diameter.When reality uses, drive coil 5 can not directly contact with the inside surface of pipeline with magnetic test coil 6, therefore described sector structure 12 to have corresponding groove, described drive coil 5 and magnetic test coil 6 are all wound around in a groove, and the drive coil 5 after twining and the distance between the extrados of magnetic test coil 6 and inner surface of pipeline will control at 2 ~ 10mm, drive coil 5 after twining and the skin of magnetic test coil 6, by epoxy encapsulation, play the effect of wear-resisting, waterproof, insulation.
In the present embodiment, each sector structure 12 is connected with central shaft block 11 by three springs 13, ensures the stability that sector structure 12 is connected with central shaft block 11.
Sector structure 12 described in the present embodiment is provided with even number, and the end face centre position of described sector structure 12 extends to form protuberance 121 vertically, and adjacent sector structure 12 turns upside down placement; The cylindrical axis that described axis and central shaft block 11 and sector structure 12 are formed.With reference to figure 4, adjacent sector structure 12 adopts the object of placing that turns upside down to be: adjacent two sector structures 12 can be made to produce overlapped part, protuberance 121 can meet the requirement of the overlap of adjacent sector structure 12, sector structure 12 overlap also just makes drive coil 5 and magnetic test coil 6 overlapping, and then ensures that all positions in EDDY CURRENT 1 circumference can effectively be detected when EDDY CURRENT 1 moves integrally.Sector structure 12 in the present embodiment preferably adopts 6.Be connected with central shaft block 11 for the ease of sector structure 12, described central shaft block 11 is provided with the side corresponding with sector structure 12 quantity.EDDY CURRENT in the present embodiment 1 also comprises an end cap 15, end cap 15 is connected with one end of central shaft block 11, described central shaft block 11 is hollow structure, end cap 15 is provided with signaling interface 14, the data line be connected with magnetic test coil 6 with drive coil 5 is drawn from the hollow position of central shaft block 11 and is connected with signaling interface 14, signal is passed to eddy current testing instrument 2 by data line by signaling interface 14 again, and finally imports industrial computer 4 into.According to the service condition of reality, increase by increasing the quantity of sector structure 12 the cylindrical outer diameter size that central shaft block 11 and sector structure 12 formed, and then detect the pipeline of more large diameter size.
Because described EDDY CURRENT 1 will enter into pipeline and use, therefore described EDDY CURRENT 1 is provided with abutment ring 7, uses related tool to coordinate with abutment ring 7 and EDDY CURRENT 1 is transported to working position.Abutment ring 7 in the present embodiment is also arranged on described end cap 15.In other embodiments, also directly can clamp EDDY CURRENT 1 and carry out work, only may cause damage to EDDY CURRENT 1 like this.
Video detector 3 described in the utility model comprises main part 31, described main part 31 is provided with illuminating lamp 32 and camera 33, and described main part 31 is connected with described central shaft block 11.Described illuminating lamp 32 preferably adopts LED.Described illuminating lamp 32 is connected with industrial computer 4 by data line with camera 33.On the basis of above-described embodiment, the data line of described illuminating lamp 32 and camera 33 is also drawn by the hollow structure of central shaft block 11, to make full use of space.During concrete use, can also arrange a signaling interface on end cap 15, namely illuminating lamp 32 is first connected with described signaling interface by data line with camera 33, and then draws new data line from signaling interface and import signal into industrial computer 4.
In the present embodiment, as shown in Figure 3, the anti-collision side 34 be arranged on main part 31 is provided with outside described illuminating lamp 32 and camera 33.Anti-collision side 34 and illuminating lamp 32 and camera 33 are no longer on same plane, when video detector 3 soon touches ducted a certain end face, first anti-collision side 34 touches described end face, avoids illuminating lamp 32 and contacts pipeline end face with camera 33 and cause damage.
Using method of the present utility model is: first EDDY CURRENT 1, eddy current testing instrument 2 are connected successively with industrial computer 4, video detector 3 is connected with industrial computer 4, uses the abutment ring 7 in relevant means of delivery and EDDY CURRENT 1 to be connected; Then check that whether the state of each parts is normal, check good after, use means of delivery to put in pipeline to be detected, because the elastic force effect of spring 13 by EDDY CURRENT 1, sector structure 12 all abuts in the inside surface of pipeline, keeps the position stability of EDDY CURRENT 1; Along with EDDY CURRENT 1 movement in the duct can detect the inside surface of pipeline and nearly surface, scanning, record take the photograph video, the data obtained are passed into industrial computer 4; Last technician draws the actual conditions of pipeline according to the display result on industrial computer 4.
In sum, a kind of pipe detection device of the utility model, detects accurately, simple to operate.So the utility model effectively overcomes practical problemss more of the prior art thus has very high value and use meaning.
Above-mentioned embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.The utility model also has many aspects can improve under the prerequisite of overall thought, all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or change for person skilled in the art scholar.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (6)
1. a pipe detection device, is characterized in that, comprises EDDY CURRENT head (1), eddy current testing instrument (2), video detector (3) and industrial computer (4); Described EDDY CURRENT head (1) comprises central shaft block (11) and multiple sector structure (12), circumference along each sector structure (12) is wound with fan-shaped drive coil (5) and fan-shaped magnetic test coil (6) respectively, multiple sector structure (12) is centered around central shaft block (11) outside and is connected with central shaft block (11) respectively by spring (13), and central shaft block (11) and multiple sector structure (12) form cylindrical structural; Described video detector (3) is connected with one end of described central shaft block (11), described eddy current testing instrument (2) is connected with industrial computer (4) with EDDY CURRENT head (1) respectively by data line, and described video detector (3) is connected with industrial computer (4) by data line.
2. a kind of pipe detection device according to claim 1, is characterized in that: each sector structure (12) is connected with central shaft block (11) by three springs (13).
3. a kind of pipe detection device according to claim 1, is characterized in that: described EDDY CURRENT head (1) is provided with abutment ring (7).
4. a kind of pipe detection device according to claim 1, it is characterized in that: described sector structure (12) is provided with even number, the end face centre position of described sector structure (12) extends to form protuberance (121) vertically, and adjacent sector structure (12) turns upside down placement.
5. a kind of pipe detection device according to claim 1, it is characterized in that: described video detector (3) comprises main part (31), described main part (31) is provided with illuminating lamp (32) and camera (33), described main part (31) is connected with described central shaft block (11).
6. a kind of pipe detection device according to claim 5, is characterized in that: described illuminating lamp (32) and camera (33) outside are provided with the anti-collision side (34) be arranged on main part (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907723.XU CN205210023U (en) | 2015-11-13 | 2015-11-13 | Pipe detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907723.XU CN205210023U (en) | 2015-11-13 | 2015-11-13 | Pipe detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205210023U true CN205210023U (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520907723.XU Active CN205210023U (en) | 2015-11-13 | 2015-11-13 | Pipe detection device |
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| CN (1) | CN205210023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535353A (en) * | 2018-03-14 | 2018-09-14 | 西南石油大学 | A kind of pipeline crack detection device |
| CN108709091A (en) * | 2018-05-28 | 2018-10-26 | 芜湖撼江智能科技有限公司 | A kind of industrial tubes detection device |
-
2015
- 2015-11-13 CN CN201520907723.XU patent/CN205210023U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535353A (en) * | 2018-03-14 | 2018-09-14 | 西南石油大学 | A kind of pipeline crack detection device |
| CN108709091A (en) * | 2018-05-28 | 2018-10-26 | 芜湖撼江智能科技有限公司 | A kind of industrial tubes detection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |