CN217819144U - Stress detection device of high-temperature pressure pipeline - Google Patents
Stress detection device of high-temperature pressure pipeline Download PDFInfo
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- CN217819144U CN217819144U CN202222188180.3U CN202222188180U CN217819144U CN 217819144 U CN217819144 U CN 217819144U CN 202222188180 U CN202222188180 U CN 202222188180U CN 217819144 U CN217819144 U CN 217819144U
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Abstract
The utility model discloses a stress detection device of a high-temperature pressure pipeline, which comprises a stress detector and a stress posture adjusting mechanism, wherein the stress posture adjusting mechanism is used for adjusting the detection position of the stress detector so as to realize the axial and radial stress detection of the high-temperature pressure pipeline; the stress attitude adjusting mechanism comprises a detection seat, a guide rail arranged on the detection seat and a rotation driving mechanism for driving the guide rail to rotate; the stress detector is mounted on the guide rail and can move along the guide rail. The utility model discloses a stress parameter detection device can the automated inspection high temperature pipeline under pressure stress parameter on each position to for follow-up carry out safe assessment to high temperature pipeline under pressure and provide data support, and have the advantage that detects with low costs, detection efficiency is high.
Description
Technical Field
The utility model belongs to the pipeline detection field specifically is a stress detection device of high temperature pipeline under pressure.
Background
The main process temperature range of a typical oil refining process in a petrochemical enterprise is 200-550 ℃, the process temperature of a part of catalytic cracking and coking reaches 700-800 ℃, a pressure pipeline is in service in a high-temperature environment for a long time, the creep damage phenomenon is easy to occur, and if the pipeline has certain standard exceeding defects, along with creep crack expansion, leakage and explosion accidents are easy to occur. Therefore, the safety evaluation of the in-service high-temperature pressure pipeline is particularly important.
Based on JB/T12746-2015 'method for evaluating safety of high-temperature pressure pipelines and valves with defects' and GB/T19624-2019 'safety evaluation of pressure vessels with defects in service', safety evaluation work can be carried out on the high-temperature pressure pipelines with defects in service, but most inspectors conservatively adopt a repair or replacement strategy for the defects exceeding the standards, and rarely carry out safety evaluation on the pipelines. The safety evaluation of the high-temperature pressure pipeline with the defects in the JB/T12746 method is mainly characterized by strong theoretical performance, complex evaluation process, high requirement on comprehensive capability of an evaluator and the like, and cannot be widely carried out in a special inspection mechanism. With the advance of time, the creep phenomenon of the high-temperature pressure pipeline is more and more obvious, and the probability of creep rupture of the high-temperature pressure pipeline containing defects is increased. Judging whether the manufacturing defects, the defects or the damages generated in the service process of the high-temperature pressure pipeline containing the defects threaten the operation safety of the high-temperature pressure pipeline, and how to effectively evaluate the safety condition of the high-temperature pressure pipeline is the key and difficult point of the future inspection work.
However, in the safety evaluation process of the high-temperature pressure pipeline, stress parameters of each position of the high-temperature pressure pipeline need to be acquired, but most of the currently adopted detection modes are manual detection, so that the detection cost is high, and the detection efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the not enough of prior art existence, provide a stress detection device of high temperature pipeline under pressure, stress parameter detection device can the stress parameter on each position of this high temperature pipeline under pressure of automated inspection to for follow-up carry out safe assessment to high temperature pipeline under pressure and provide data support, and have the advantage that detection cost is low, detection efficiency is high.
The utility model provides a technical scheme of above-mentioned technical problem is:
a stress detection device of a high-temperature pressure pipeline comprises a stress detector and a stress posture adjusting mechanism, wherein the stress posture adjusting mechanism is used for adjusting the detection position of the stress detector so as to realize the axial and radial stress detection of the high-temperature pressure pipeline; the stress attitude adjusting mechanism comprises a detection seat, a guide rail arranged on the detection seat and a rotation driving mechanism used for driving the guide rail to rotate, wherein the stress detector is arranged on the guide rail and can move along the extending direction of the guide rail.
Preferably, the guide rail is an arc-shaped guide rail, a rack is arranged on the upper side of the arc-shaped guide rail, and the rack extends along the extension direction of the arc-shaped guide rail; the stress detector is installed on the arc-shaped sliding block, the arc-shaped sliding block is installed in the arc-shaped guide rail, and a traveling mechanism used for driving the arc-shaped sliding block to move in the arc-shaped guide rail is arranged on the arc-shaped sliding block.
Preferably, the arc-shaped guide rail and the arc-shaped sliding block are concentric.
Preferably, the traveling mechanism comprises a traveling motor arranged on the arc-shaped sliding block and a traveling gear arranged on a main shaft of the traveling motor, wherein the traveling gear is meshed with the rack.
Preferably, the device further comprises a walking device for driving the stress detection device to crawl on the high-temperature pressure pipeline, wherein the walking device comprises a bracket, a first clamping mechanism, a second clamping mechanism and a linear driving mechanism, the first clamping mechanism and the second clamping mechanism are arranged on the bracket, the linear driving mechanism is used for driving the first clamping mechanism to move along the axis direction of the high-temperature pressure pipeline, and the first clamping mechanism and the second clamping mechanism are used for clamping and loosening the high-temperature pressure pipeline; the stress detection device and the first clamping mechanism are fixedly connected through a connecting seat.
Preferably, the first clamping mechanism and the second clamping mechanism have the same structure and respectively comprise a clamping jaw and a clamping cylinder for driving the clamping jaw to tightly hold or loosen the high-temperature pressure pipeline.
Preferably, the linear driving mechanism adopts a mode of combining a motor and a screw rod transmission mechanism.
Preferably, one side or two sides of the screw rod in the screw rod transmission mechanism are provided with linear guide mechanisms for guiding the linear motion of the connecting seat; the linear guide mechanism adopts a mode of combining a sliding rod with a sliding sleeve/a sliding hole.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
1. the utility model discloses a high temperature pipeline under pressure's stress detection device passes through rotation actuating mechanism and drives the guide rail rotation, and passes through the drive the stress detection appearance is in remove on the guide rail, not only can detect to be located in the high temperature pipeline under pressure the stress parameter of each position (side on the pipeline) in the rotation range of guide rail, but also can detect the axial stress and radial (or circumference) stress of high temperature pipeline under pressure to carry out safety assessment to high temperature pipeline under pressure for the follow-up and provide data support.
2. The utility model discloses a stress detection device of high temperature pipeline under pressure can realize carrying out automated inspection to the stress parameter of each position of high temperature pipeline under pressure, has not only reduced the stress detection cost, but also can improve stress detection precision and stress detection efficiency.
Drawings
Fig. 1 is a front view of the stress detection device for a high-temperature pressure pipe according to the present invention.
Fig. 2 and fig. 3 are schematic diagrams of three-dimensional structures at two different viewing angles of the stress detection apparatus for high-temperature pressure pipelines according to the present invention.
Fig. 4 is a schematic perspective view of a stress detection device.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Referring to fig. 1-4, the stress detection device of high temperature pressure pipeline of the present invention includes a stress detection device 1 and a traveling device for driving the stress detection device 1 to crawl on the high temperature pressure pipeline.
Referring to fig. 1 to 4, the stress detection apparatus 1 includes a stress detector 106 and a stress posture adjustment mechanism for adjusting a detection position of the stress detector 106 to achieve stress detection in the axial direction and the radial direction of the high-temperature pressure pipeline; wherein the content of the first and second substances,
the stress attitude adjusting mechanism comprises a detection base 101, an arc-shaped guide rail 103 arranged on the detection base 101 and a rotation driving mechanism 102 for driving the arc-shaped guide rail 103 to rotate, wherein the rotation driving mechanism 102 comprises a rotation motor which is arranged on the detection base 101, and a main shaft of the rotation motor is connected with the arc-shaped guide rail 103; a rack is arranged on the upper side of the arc-shaped guide rail 103 and extends along the extending direction of the arc-shaped guide rail 103; the stress detector 106 is installed on an arc-shaped sliding block, the arc-shaped sliding block is installed in the arc-shaped guide rail 103, and a traveling mechanism used for driving the arc-shaped sliding block to move in the arc-shaped guide rail 103 is arranged on the arc-shaped sliding block, wherein the traveling mechanism comprises a traveling motor 105 arranged on the arc-shaped sliding block and a traveling gear 104 arranged on a main shaft of the traveling motor 105, and the traveling gear 104 is meshed with the rack. Through the matching of the rotation driving mechanism 102 and the traveling mechanism, the stress detector is driven to perform stress detection at each position within the rotation range of the arc-shaped guide rail 103. In addition, the centers of the arc-shaped guide rail 103 and the arc-shaped sliding block are located on the axis of the high-temperature pressure pipeline and are concentric with each other.
Referring to fig. 1 to 4, the traveling device includes a support 2, a first clamping mechanism 6, a second clamping mechanism 7, and a linear driving mechanism, wherein the first clamping mechanism 6 and the second clamping mechanism 7 are disposed on the support 2, and the linear driving mechanism is used for driving the first clamping mechanism 6 to move along the axial direction of the high-temperature pressure pipe, and both the first clamping mechanism 6 and the second clamping mechanism 7 are used for clamping and releasing the high-temperature pressure pipe; the stress detection device 1 and the first clamping mechanism 6 are fixedly connected through a connecting seat 5.
Referring to fig. 1-4, the first clamping mechanism 6 and the second clamping mechanism 7 have the same structure, and both include a clamping jaw 8 and a clamping cylinder 9 for driving the clamping jaw 8 to clamp or loosen the high-temperature pressure pipeline, and the clamping cylinder 9 drives the clamping jaw 8 to open or close, so as to loosen or clamp the high-temperature pressure pipeline.
Referring to fig. 1 to 4, the linear driving mechanism adopts a mode of combining a motor 3 and a screw rod transmission mechanism 4, and a linear guide mechanism is arranged on one side or two sides of a screw rod in the screw rod transmission mechanism 4, and the linear guide mechanism adopts a mode of combining a slide rod and a slide sleeve/slide hole, and is used for guiding the linear motion of the connecting seat 5 and ensuring the motion precision thereof.
Referring to fig. 1-4, the working principle of the stress detection device for high-temperature pressure pipelines of the present invention is:
when the device works, the walking device drives the stress detection device 1 to crawl on a high-temperature pressure pipeline. When the high-temperature pressure pipeline needs to be detected, the rotation driving mechanism 102 drives the guide rail to rotate, and the pressure detector 106 moves along the extending direction of the guide rail, so that stress detection is performed on all positions in the high-temperature pressure pipeline, which are located within the rotating range of the guide rail.
In the process, the crawling mode of the walking device is as follows: firstly, the second clamping mechanism 7 tightly holds the high-temperature pressure pipeline, then the first clamping mechanism 6 loosens the high-temperature pressure pipeline, and then the linear driving mechanism drives the first clamping mechanism 6 and the stress detection device 1 (which are connected through the connecting seat 5) to move forwards; afterwards high temperature pipeline under pressure is held tightly to first fixture 6, linear drive mechanism resets, makes support 2 and setting are in second fixture 7 forward motion on the support 2 realizes with this the utility model discloses a high temperature pipeline under pressure's stress detection device crawls on high temperature pipeline under pressure.
The above is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (8)
1. The stress detection device of the high-temperature pressure pipeline is characterized by comprising a stress detector and a stress posture adjusting mechanism, wherein the stress posture adjusting mechanism is used for adjusting the detection position of the stress detector so as to realize the axial and radial stress detection of the high-temperature pressure pipeline; the stress attitude adjusting mechanism comprises a detection seat, a guide rail arranged on the detection seat and a rotation driving mechanism used for driving the guide rail to rotate, wherein the stress detector is arranged on the guide rail and can move along the extending direction of the guide rail.
2. The stress detection device of the high-temperature pressure pipeline according to claim 1, wherein the guide rail is an arc-shaped guide rail, a rack is arranged on the upper side of the arc-shaped guide rail, and the rack extends along the extension direction of the arc-shaped guide rail; the stress detector is installed on the arc-shaped sliding block, the arc-shaped sliding block is installed in the arc-shaped guide rail, and a traveling mechanism used for driving the arc-shaped sliding block to move in the arc-shaped guide rail is arranged on the arc-shaped sliding block.
3. The apparatus of claim 2, wherein the arcuate rail and the arcuate slider are concentric.
4. The stress detection device of a high-temperature pressure pipeline according to claim 3, wherein the walking mechanism comprises a walking motor arranged on the arc-shaped sliding block and a walking gear arranged on a main shaft of the walking motor, wherein the walking gear is meshed with the rack.
5. The stress detection device of the high-temperature pressure pipeline according to claim 1, further comprising a walking device for driving the stress detection device to crawl on the high-temperature pressure pipeline, wherein the walking device comprises a bracket, a first clamping mechanism and a second clamping mechanism arranged on the bracket, and a linear driving mechanism for driving the first clamping mechanism to move along the axial direction of the high-temperature pressure pipeline, wherein the first clamping mechanism and the second clamping mechanism are both used for clamping and unclamping the high-temperature pressure pipeline; the stress detection device and the first clamping mechanism are fixedly connected through a connecting seat.
6. The device for detecting the stress of the high-temperature pressure pipeline according to claim 5, wherein the first clamping mechanism and the second clamping mechanism are identical in structure and each comprise a clamping jaw and a clamping cylinder for driving the clamping jaw to clamp or unclamp the high-temperature pressure pipeline.
7. The apparatus for testing stress of a high temperature pressure pipe according to claim 5, wherein the linear driving mechanism is a combination of a motor and a lead screw transmission mechanism.
8. The stress detection device of a high-temperature pressure pipeline according to claim 7, wherein one side or two sides of the screw rod in the screw rod transmission mechanism are provided with linear guide mechanisms for guiding the linear motion of the connecting seat; the linear guide mechanism adopts a mode of combining a sliding rod with a sliding sleeve/a sliding hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222188180.3U CN217819144U (en) | 2022-08-19 | 2022-08-19 | Stress detection device of high-temperature pressure pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222188180.3U CN217819144U (en) | 2022-08-19 | 2022-08-19 | Stress detection device of high-temperature pressure pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN217819144U true CN217819144U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222188180.3U Active CN217819144U (en) | 2022-08-19 | 2022-08-19 | Stress detection device of high-temperature pressure pipeline |
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| Country | Link |
|---|---|
| CN (1) | CN217819144U (en) |
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2022
- 2022-08-19 CN CN202222188180.3U patent/CN217819144U/en active Active
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