CN217717611U - Far-field eddy current probe protection device - Google Patents
Far-field eddy current probe protection device Download PDFInfo
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- CN217717611U CN217717611U CN202221266004.0U CN202221266004U CN217717611U CN 217717611 U CN217717611 U CN 217717611U CN 202221266004 U CN202221266004 U CN 202221266004U CN 217717611 U CN217717611 U CN 217717611U
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- rod
- eddy current
- current probe
- moving block
- rod body
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Abstract
The utility model discloses a far field eddy current probe protection device relates to check out test set technical field, including well core rod and strutting arrangement, strutting arrangement sets up on well core rod, and well core rod can fix the rear end that sets up at far field eddy current probe, and the heat exchange tube inner wall that can laminate of strutting arrangement outward flange makes far field eddy current probe rear end lateral wall and heat exchange tube inner wall keep the interval. Make far field eddy current probe rear end lateral wall and heat exchange tube inner wall keep the interval through setting up strutting arrangement, prevent contact wear and tear wearing and tearing, guarantee the accuracy of detected data.
Description
Technical Field
The utility model relates to a check out test set technical field especially relates to a far field eddy current probe protection device.
Background
During regular inspection or emergency stop of a heat exchanger in the petrochemical device, far-field eddy current detection needs to be carried out on the ferromagnetic heat exchange tube so as to judge the corrosion degree and the leakage condition of the heat exchange tube. At present, when a ferromagnetic heat exchange tube is detected by using an inner-penetrating far-field eddy current detection probe in far-field eddy current detection, the front end of the probe is connected with a data connecting line in the process that the far-field eddy current probe enters and exits the heat exchange tube, the front end of the probe is relatively slightly worn due to the long length of the probe and certain deflection of the data connecting line, and the rear end of the probe is directly contacted and worn with the inner wall of the heat exchange tube, so that the rear end of the probe is worn and deflected after long-time use, and the probe is damaged; and because a certain clearance fit exists between the far-field vortex probe and the inner wall of the heat exchange pipe, two ends of the vortex probe contact the inner wall of the heat exchange pipe, so that the filling rate of each part of the probe is inconsistent (the filling rate refers to the ratio of the outer diameter of the probe to the inner diameter of the heat exchange pipe, the detection requirement is generally not less than 70%, the larger the filling rate is, the higher the reliability of general data is), the detection data has certain deviation, and the result of vortex detection is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a far field eddy current probe protection device to solve the problem that above-mentioned prior art exists, avoid far field eddy current probe rear end wearing and tearing, guarantee the accuracy of testing data.
In order to achieve the above purpose, the utility model provides a following scheme:
the utility model provides a far field eddy current probe protection device, including well core rod and strutting arrangement, strutting arrangement sets up well core rod is last, well core rod can fix the rear end that sets up at far field eddy current probe, just the heat exchange tube inner wall that can laminate of strutting arrangement outward flange makes far field eddy current probe rear end lateral wall and heat exchange tube inner wall keep the interval.
Preferably, the device further comprises a fixed seat and a moving block, one end of the central rod is fixedly arranged on the fixed seat, the fixed seat can be fixedly arranged at the rear end of the far-field eddy current probe, one end of the supporting device is arranged on the fixed seat, the other end of the supporting device is arranged on the moving block, the moving block is sleeved on the central rod, and the moving block can move on the central rod to enable the moving block to be close to or far away from the fixed seat and change the outer diameter of the outer edge of the supporting device.
Preferably, the locking device is arranged on the central rod, and the locking device can lock the relative position of the moving block on the central rod.
Preferably, the supporting device includes at least two supporting rod assemblies, each supporting rod assembly is arranged around the axis of the central rod, each supporting rod assembly includes a first rod body and a second rod body, one end of the first rod body is rotatably connected with one end of the second rod body, one end of each first rod body, which is far away from the second rod body, is rotatably connected with the fixed seat, one end of each second rod body, which is far away from the first rod body, is rotatably connected with the moving block, and the moving block moves on the central rod to drive the angle change between the first rod body and the second rod body connected with the first rod body and to change the distance between one end of the first rod body, which is far away from the fixed seat, and the central rod.
Preferably, a rolling device is arranged at the joint of each first rod body and one second rod body, one side of each rolling device, which is far away from the central rod, forms the outer edge of the supporting device together, and each rolling device can roll along the inner wall of the heat exchange tube.
Preferably, the rolling means is a ball bearing.
Preferably, each of the first rod body and the second rod body is made of an aluminum alloy material.
Preferably, the locking device includes a first nut and a second nut, the central rod is a threaded rod, the first nut and the second nut are both in threaded connection with the central rod, the moving block is provided with a through hole, the central rod is sleeved in the through hole, the moving block can move along the axis of the central rod, and the first nut, the moving block and the second nut are sequentially arranged on the central rod.
The utility model discloses for prior art gain following technological effect:
the utility model provides a far field eddy current probe protection device makes far field eddy current probe rear end and heat exchange tube inner wall keep the interval through setting up strutting arrangement, prevents its wearing and tearing, guarantees the accuracy of testing data.
Furthermore, the movable block is adopted to drive one end of the supporting device to move and change the size of the outer edge of the supporting device, so that the supporting device can be suitable for heat exchange tubes with different inner diameters, and the application range of the supporting device is enlarged.
Furthermore, the locking device can lock the relative position of the moving block, namely the outer edge of the supporting device can be kept at a certain size, the distance between the rear end of the far-field eddy current probe and the inner wall of the heat exchange tube can be stably kept, and contact abrasion of the far-field eddy current probe and the inner wall of the heat exchange tube is prevented.
Furthermore, the supporting device is composed of more than two supporting rod assemblies, each supporting rod assembly is composed of two rods, and the supporting device is simple in structure and convenient to manufacture.
Furthermore, the rolling device arranged on each supporting rod component can improve the smoothness of the far-field vortex probe in the insertion and extraction of the heat exchange tube, so that the working efficiency is improved.
Further, the rolling device adopts a ball bearing, and the components are commonly and easily obtained.
Furthermore, the first rod body and the second rod body are made of aluminum alloy materials, and are corrosion-resistant and long in service life.
Furthermore, the locking device adopts a mode that two nuts are in threaded connection with the central rod to clamp the position of the locking moving block, the structure is simple, and the locking is stable and firm.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is the overall structure schematic diagram of the far field eddy current probe protection device provided by the present invention.
In the figure: 100-far field eddy current probe protection; 1-a central rod; 2-a support device; 3-fixing the base; 4-moving block; 5-a locking device; 51-a first nut; 52-a second nut; 6-a support rod assembly; 61-a first rod; 62-a second rod body; 63-a rolling device; 7-far field eddy current probe; 8-heat exchange tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a far field eddy current probe protection device to solve the problem that prior art exists, avoid far field eddy current probe rear end wearing and tearing, guarantee the accuracy of testing data.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example one
This embodiment provides a far field eddy current probe protection device 100, as shown in fig. 1, including well core rod 1 and strutting arrangement 2, strutting arrangement 2 sets up on well core rod 1, well core rod 1 can fix the rear end that sets up at far field eddy current probe 7, and the 2 outward flange of strutting arrangement can laminate the 8 inner walls of heat exchange tube and make 7 rear end lateral walls of far field eddy current probe and the 8 inner walls of heat exchange tube keep the interval. Make 7 rear end lateral walls of far field eddy current probe and 8 inner walls of heat exchange tube keep a distance through setting up strutting arrangement 2, prevent 7 rear end lateral walls of far field eddy current probe and 8 inner walls contact wear of heat exchange tube, guarantee the accuracy of testing data.
In an alternative scheme of this embodiment, preferably, as shown in fig. 1, the far-field eddy current probe protection device 100 further includes a fixing base 3 and a moving block 4, one end of the central rod 1 is fixedly disposed on the fixing base 3, specifically, the axes of the central rod 1 and the fixing base 3 coincide, the fixing base 3 can be fixedly disposed at the rear end of the far-field eddy current probe 7, one end of the supporting device 2 is disposed on the fixing base 3, and the other end of the supporting device 2 is disposed on the moving block 4, the moving block 4 is sleeved on the central rod 1, and the moving block 4 can move on the central rod 1 to enable the moving block 4 to approach or leave the fixing base 3 and change the outer diameter of the outer edge of the supporting device 2. The movable block 4 is adopted to drive one end of the supporting device 2 to move and change the size of the outer edge of the supporting device, so that the supporting device can be suitable for heat exchange tubes 8 with different inner diameters, and the application range of the supporting device is enlarged.
Specifically, the maximum supporting radius formed by the outer edge of the supporting device 2 can be suitable for the heat exchange tube 8 with the tube diameter of 60 mm.
In an alternative of this embodiment, preferably, as shown in fig. 1, the far-field eddy current probe protection device 100 further includes a locking device 5, the locking device 5 is disposed on the central rod 1, and the locking device 5 can lock the relative position of the moving block 4 on the central rod 1. The locking device 5 can lock the relative position of the moving block 4, namely, the outer edge of the supporting device 2 can be kept in a certain size, the distance between the rear end of the far-field eddy current probe 7 and the inner wall of the heat exchange tube 8 can be stably kept, and the contact abrasion between the rear end of the far-field eddy current probe 7 and the inner wall of the heat exchange tube 8 is prevented.
In an alternative of this embodiment, preferably, as shown in fig. 1, the supporting device 2 includes at least two supporting rod assemblies 6, each supporting rod assembly 6 is disposed around an axis of the central rod 1, each supporting rod assembly 6 includes a first rod 61 and a second rod 62, one end of the first rod 61 is rotatably connected to one end of the second rod 62, one end of each first rod 61, which is away from the second rod 62, is rotatably connected to the fixing base 3, one end of each second rod 62, which is away from the first rod 61, is rotatably connected to the moving block 4, specifically, the rotational axes of the first rod 61 and the second rod 62 are first axes, the rotational axes of the first rod 61 and the fixing base 3 are second axes, the rotational axes of the second rod 62 and the moving block 4 are third axes, the first axis, the second axis and the third axis are respectively parallel to and perpendicular to the axis of the central rod 1, and the moving block 4 can drive an angle between the first rod 61 and the second rod 62 connected to the moving block to change, and a distance between one end of the first rod 61 and the fixing base 1 is changed. The supporting device 2 is composed of more than two supporting rod assemblies 6, each supporting rod assembly 6 is composed of two rods, and the supporting device is simple in structure and convenient to manufacture.
Specifically, the length of the first rod 61 is 60mm, and the length of the second rod 62 is 30mm.
In another optional scheme of this embodiment, the supporting device 2 may also be a cylindrical rubber sleeve, and the outer diameter of the middle of the rubber sleeve is large, and the outer diameters of both ends are small, and along with the movement and stretching of both ends of the cylindrical rubber sleeve, the outer diameter of the middle of the rubber sleeve generates elastic deformation and the outer diameter becomes small, in this embodiment, one end of the rubber sleeve is fixedly connected to the fixed seat 3, and the other end of the rubber sleeve is fixedly connected to the moving block 4, and at this time, the movement of the moving block 4 realizes the change of the outer diameter of the middle of the rubber sleeve.
In an alternative of this embodiment, it is preferable that, as shown in fig. 1, a rolling device 63 is disposed at a junction of each first rod 61 and one second rod 62, a side of each rolling device 63 away from the central rod 1 jointly forms an outer edge of the supporting device 2, and each rolling device 63 can roll along an inner wall of the heat exchange tube 8. The rolling device 63 arranged on each supporting rod assembly 6 can improve the smoothness of the far-field eddy current probe 7 in the insertion and extraction of the heat exchange tube 8, so that the working efficiency is improved.
In the alternative of this embodiment, it is preferable that the rolling device 63 is a ball bearing, specifically, the axis of the ball bearing is perpendicular to the axis of the heat exchange tube 8, and the outer ring of the ball bearing can roll along the inner wall of the heat exchange tube 8, the inner ring of the ball bearing is fixedly connected to a rotating shaft, and the rotating shaft is respectively rotatably connected to the first rod body 61 and the second rod body 62. The rolling means 63 is a ball bearing, the components of which are commonly available.
In an alternative of this embodiment, it is preferable that each of the first rod 61 and each of the second rod 62 are made of an aluminum alloy. The first rod body 61 and the second rod body 62 are made of aluminum alloy materials, and are corrosion-resistant and long in service life.
In the alternative of this embodiment, preferably, as shown in fig. 1, the locking device 5 includes a first nut 51 and a second nut 52, the central rod 1 is a threaded rod, the first nut 51 and the second nut 52 are both in threaded connection with the central rod 1, the moving block 4 is provided with a through hole, the central rod 1 is sleeved in the through hole, the moving block 4 can move along the axis of the central rod 1, and the first nut 51, the moving block 4 and the second nut 52 are sequentially disposed on the central rod 1. The locking device 5 is used for clamping the position of the locking moving block 4 in a mode that two nuts are in threaded connection with the central rod 1, and is simple in structure, stable and firm in locking.
The principle and the implementation mode of the utility model are explained by applying a specific embodiment, and the explanation of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. A far-field eddy current probe protection device is characterized in that: including well core rod and strutting arrangement, strutting arrangement sets up well core rod is last, well core rod can fix the rear end that sets up at far field vortex probe, just the heat exchange tube inner wall can be laminated to the strutting arrangement outward flange makes far field vortex probe rear end lateral wall and heat exchange tube inner wall keep the interval.
2. The far field eddy current probe protection device of claim 1, wherein: the device comprises a fixed seat and a moving block, wherein one end of a central rod is fixedly arranged on the fixed seat, the fixed seat can be fixedly arranged at the rear end of a far-field eddy current probe, one end of a supporting device is arranged on the fixed seat, the other end of the supporting device is arranged on the moving block, the moving block is sleeved on the central rod, and the moving block can move on the central rod to enable the moving block to be close to or far away from the fixed seat and change the outer diameter of the outer edge of the supporting device.
3. The far field eddy current probe protection device of claim 2, wherein: the locking device is arranged on the central rod and can lock the relative position of the moving block on the central rod.
4. The far field eddy current probe protection device of claim 2, wherein: the supporting device comprises at least two supporting rod assemblies, each supporting rod assembly is arranged around the axis of the central rod, each supporting rod assembly comprises a first rod body and a second rod body, one end of each first rod body is rotatably connected with one end of each second rod body, one end, far away from the second rod body, of each first rod body is rotatably connected with the fixing base, one end, far away from the first rod body, of each second rod body is rotatably connected with the moving block, and the moving block moves on the central rod to drive the angle change between the first rod body and the second rod body connected with the first rod body and enable the distance between one end, far away from the fixing base, of the first rod body and the central rod to be changed.
5. The far field eddy current probe protection device of claim 4, wherein: and a rolling device is arranged at the joint of each first rod body and one second rod body, one side of each rolling device, which is far away from the central rod, jointly forms the outer edge of the supporting device, and each rolling device can roll along the inner wall of the heat exchange tube.
6. The far field eddy current probe protection device of claim 5, wherein: the rolling device is a ball bearing.
7. The far field eddy current probe protection device of claim 4, wherein: each first rod body and each second rod body are made of aluminum alloy materials.
8. The far field eddy current probe protection device of claim 3, wherein: the locking device comprises a first nut and a second nut, the central rod is a threaded rod, the first nut and the second nut are both in threaded connection with the central rod, a through hole is formed in the moving block, the central rod is sleeved in the through hole, the moving block can move along the axis of the central rod, and the first nut, the moving block and the second nut are sequentially arranged on the central rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221266004.0U CN217717611U (en) | 2022-05-20 | 2022-05-20 | Far-field eddy current probe protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221266004.0U CN217717611U (en) | 2022-05-20 | 2022-05-20 | Far-field eddy current probe protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217717611U true CN217717611U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221266004.0U Active CN217717611U (en) | 2022-05-20 | 2022-05-20 | Far-field eddy current probe protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217717611U (en) |
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2022
- 2022-05-20 CN CN202221266004.0U patent/CN217717611U/en active Active
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