CN210219052U - Circulating traction test device for pipeline internal detector - Google Patents
Circulating traction test device for pipeline internal detector Download PDFInfo
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- CN210219052U CN210219052U CN201920864150.5U CN201920864150U CN210219052U CN 210219052 U CN210219052 U CN 210219052U CN 201920864150 U CN201920864150 U CN 201920864150U CN 210219052 U CN210219052 U CN 210219052U
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Abstract
The utility model provides a pipeline internal detector circulation tractive test device, include including drive arrangement, circulation pipeline, internal detector sending device, internal detector receiving arrangement and pipeline internal detector, can be in required pipeline damage of simulation in the circulation pipeline, the pipeline internal detector is under drive arrangement's effect, is sent into the circulation pipeline by internal detector sending device, through the power that drive arrangement provided moves in the circulation pipeline, after satisfying the test condition, via the internal detector receiving arrangement; various types of defects are preset in the circulating pipeline and are used for being detected by the detector in the pipeline to obtain test data.
Description
Technical Field
The utility model relates to a pipeline internal detector tests technical field, in particular to pipeline internal detector circulation tractive test device.
Background
The pipeline is an important mode for long-distance transportation of petroleum and natural gas, the pipeline works under high pressure, long distance and severe external environment, various defects are generated on the pipe wall due to various reasons such as transmission medium corrosion, stress, construction damage, natural disasters and the like, the defects have great harmfulness to the safe operation of the pipeline, and early detection of the defects is an important means for maintaining the maintenance work of the pipeline and the integrity of the pipeline. At present, the in-service detection method for pipeline defects is a pipeline internal detection technology. After the in-pipeline detector is developed, the performance of the in-pipeline detector needs to be comprehensively tested and tested through a traction test, and the identification and calibration of the artificial defects are completed.
At present, dry linear traction test devices are mostly adopted in the traction test of the existing pipeline internal detector, and the influence of the traction test in a liquid environment is not simulated. On the other hand, the number of defects of the pull test pipeline is small, more types of defects cannot be effectively covered, and effective test coverage of a defect quantification algorithm is influenced.
The embodiment of the utility model provides a pipeline internal detector circulation tractive test device and tractive test method has solved the tractive test influence under the liquid environment of not simulating among the prior art to and the defect quantity of tractive test pipeline is less, can not adopt the problem of artificial intelligence method to confirm the quantization relation of defect signal and defect position, classification, length, width, degree of depth information effectively.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pipeline internal detector circulation tractive test device, concrete scheme is as follows:
the circulating traction test device for the in-pipeline detector comprises a driving device, a circulating pipeline, an inner detector sending device and an inner detector receiving device, and is characterized by further comprising the in-pipeline detector, wherein the in-pipeline detector can enter the in-pipeline detector circulating traction test device through the inner detector sending device, can move along the circulating pipeline under the driving of the driving device, and can leave the in-pipeline detector circulating traction test device through the inner detector receiving device.
Further, the circulating pipeline comprises a defective pipe simulating various pipeline defects.
Furthermore, the defect pipe is composed of a plurality of sections of pipelines simulating different pipeline defects, and the plurality of sections of the pipeline with the defects are connected through flanges.
Furthermore, the multi-section defective pipeline can be a bent pipe, and the bending radius of the bent pipe is an integral multiple of the radius of the bent pipe.
Further, the plurality of sections of defective pipe may constitute a vertical riser section and/or a ramp section.
Further, the bending radius of the defective pipe is 3, 3.5, 4 or 4.5 times of the pipe diameter of the bent pipe.
Furthermore, the bending radius of the upper part of the vertical lifting pipe formed by the plurality of sections of defective pipelines is 3 times of the pipe diameter of the bent pipe, and the bending radius of the lower part of the vertical lifting pipe is 4 times of the radius of the bent pipe.
Further, interior detector sender is including sending the driver, sends valve one, sends a section of thick bamboo, sends valve two, sends valve three, sends the tee bend, sends the indicator, sends the valve, sends the return bend, the one end of sending valve one is connected and is sent the driver, and the other end is connected send a section of thick bamboo, send valve two, send valve three, send the tee bend, send the indicator, send valve four, send the return bend and establish ties in proper order, the third end of sending tee bend 14 is connected to through sending valve three and is sent the driver, the bend radius of sending the return bend is 5 times of its pipe diameter.
Further, interior detector receiving arrangement includes that liquid receives jar, receiving valve one, receives a section of thick bamboo, receives the indicator, receives valve two, receives the tee bend, receives valve three, receives valve four, receives the return bend, the one end of receiving valve one is connected to liquid and receives the jar, the other end of receiving valve one is connected to receive a section of thick bamboo, receive indicator, receiving valve two, receive tee bend, receiving valve three, receiving valve four, receive the return bend and establish ties in proper order, the third end of receiving the tee bend is connected to liquid through receiving valve three and receives the jar, the bend radius of receiving the return bend is 5 times of its pipe diameter.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a test apparatus according to the present invention;
fig. 2 is a schematic structural view of a circulation pipeline of an embodiment of the testing device of the present invention;
fig. 3 is a schematic structural view of a vertical lifting pipe section of an embodiment of the testing device of the present invention;
FIG. 4 is a schematic diagram of a ramp pipe section according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an internal detector sending device according to an embodiment of the testing device of the present invention;
fig. 6 is a schematic structural diagram of an internal detector receiving device according to an embodiment of the present invention;
fig. 7 is a step diagram of the testing method of the present invention.
Wherein: 1-a drive device; 2-a circulation pipeline; 3-inner detector sending means; 4-internal detector receiving means; 5-a connecting flange; 6-defective tube; 7-inner detector sending end valve; 8-internal detector receiving end valve; 9-a transmit driver; 10-a first sending valve; 11-a delivery cartridge; 12-send valve two; 13-sending valve three; 14-sending the tee; 15-a transmission indicator; 16-send valve four; 17-a delivery elbow; 18-a liquid receiving tank; 19-receiving a first valve; 20-a receiving cylinder; 21-receiving an indicator; 22-receiving valve two; 23-receiving a tee; 24-receiving valve three; 25-receiving valve four; 26-receiving an elbow; d-the diameter of the defective pipe; h 1-vertical pipe section lifting height; w-vertical pipe section span.
Detailed Description
The test device in the present invention is further described in detail with reference to the accompanying drawings:
in an embodiment of the present invention, a pipeline with a diameter of 325mm × 15mm is selected to form the circulation pipeline:
as shown in fig. 1, a linear pull test device for an in-pipe detector includes: a driving device 1, a circulation pipeline 2, an internal detector transmitting device 3 and an internal detector receiving device 4. The driving device 1 is a water pump, the inner detector sending device 3 and the inner detector receiving device 4 are connected to the circulating pipeline 2 through bent pipes, the circulating pipeline 2 is filled with tap water, and the pipeline inner detector performs a circulating test in the circulating pipeline 2 by utilizing the pressure difference of the front end and the rear end.
As shown in fig. 2, the circulation pipeline 2 specifically includes: flange 5, defective pipe 6, internal detector send end valve 7, internal detector receiving end valve 8, defective pipe 6 is a plurality of by the multistage pipeline flange 5 is constituteed, defective pipe has straight tube, return bend multiple type. Assuming that the outer diameter of the circulating pipeline is D, the bent pipes in the defective pipe are respectively provided with 3D, 3.5D, 4D and 4.5D bending radiuses so as to verify the over-bending capability of the detector in the pipeline. The defect pipe 6 is respectively processed with a circumferential groove defect, an axial groove defect, a pit defect and a general defect, and the total number of various defects is 1000.
As shown in fig. 3, a vertical lifting pipe section is arranged in the circulation pipeline 2 to simulate the working condition of an actual oil-gas vertical conveying pipeline, the bending radius of the upper part of the vertical lifting pipeline is set to be 3D, and the bending radius of the lower part of the vertical lifting pipeline is set to be 4D. The length of h1 and W is selected according to the power of the driving device 1, preferably h1 is 5m, and W is preferably 8 m.
As shown in FIG. 4, the slope of the ramp pipe section is 30 degrees and 45 degrees, and the working condition of the actual oil and gas maximum ramp conveying pipeline is simulated.
As shown in fig. 5, the internal detector transmitting apparatus 3 specifically includes: the device comprises a sending driver 9, a sending valve I10, a sending cylinder 11, a sending valve II 12, a sending valve III 13, a sending tee joint 14, a sending indicator 15, a sending valve IV 16 and a sending elbow 17. One end of the first sending valve 10 is connected to the sending driver 9, the other end of the first sending valve 10 is connected to the sending cylinder 11, and the second sending valve 12, the third sending valve 13, the third sending valve 14, the sending indicator 15, the fourth sending valve 16 and the sending elbow 17 are sequentially connected in series. The third end of the sending tee 14 is connected to the sending driver 9 through a sending valve III 13, and the bending radius of the sending elbow 17 is set to be 5D.
As shown in fig. 6, the inner detector receiving apparatus 4 specifically includes: the device comprises a liquid receiving tank 18, a first receiving valve 19, a receiving cylinder 20, a receiving indicator 21, a second receiving valve 22, a third receiving valve 23, a third receiving valve 24, a fourth receiving valve 25 and a receiving elbow 26. One end of the first receiving valve 19 is connected to the liquid receiving tank 18, the other end of the first receiving valve 19 is connected to the receiving cylinder 20, and the receiving indicator 21, the second receiving valve 22, the third receiving valve 23, the third receiving valve 24, the fourth receiving valve 25 and the receiving elbow 26 are sequentially connected in series. The third end of the receiving tee 23 is connected to the liquid receiving tank 18 through a receiving valve three 24, and the bending radius of the receiving elbow 26 is set to 5D.
The test method of the present invention is further described in detail below with reference to the accompanying drawings:
in an embodiment of the present invention, a pipeline with a diameter of 325mm × 15mm is selected to form the circulation pipeline:
as shown in fig. 2, various straight pipes or bent pipes having circumferential groove defects, axial groove defects, crater defects, general defects, a diameter of 325mm, and a wall thickness of 15mm are connected by a plurality of the connecting flanges 5, the internal detector transmitting end valves 7, and the internal detector receiving end valves 8 to form the circulation pipeline 2, and the total number of the various defects is 1000.
The vertical pipe section elevation h1 is preferably set to 5 metres, the span w is preferably set to 8 metres; the slope of the ramp tube sections is preferably 30 ° and 45 °.
The drive device 1 selects a water pump.
As shown in fig. 5, the step of sending the in-pipe detector into the testing device is as follows:
a) adjusting the pressure of the pipeline conveying medium to a required pressure;
b) opening a sending cylinder 11 quick-opening blind plate of the inner detector sending device 3, sending the inner detector of the pipeline into the bottom of the sending cylinder 11, and then closing the quick-opening blind plate;
c) slowly opening a first sending valve 10 to enable a sending cylinder 11 to be filled with a liquid medium;
d) slowly closing the third sending valve 13;
e) opening a fourth sending valve 16 and a second sending valve 12 slowly in sequence to enable the detector in the pipeline to enter the circulating pipeline 2;
f) and closing the second sending valve 12 after the sending indicator 15 is confirmed to act.
The experimental process steps of the circular drawing are as follows:
a) the valve 7 at the sending end of the inner detector and the valve 8 at the receiving end of the inner detector are opened slowly in sequence;
b) starting the driving device 1;
c) the in-pipeline detector performs a circulation test in the circulation pipeline 2 by using the power provided by the driving device 1;
d) the driving device 1 records the number of cycles of the detector in the pipeline in the circulating pipeline 2;
e) the cyclic pull distance of 100 km was confirmed.
As shown in fig. 6, the step of taking the in-pipe detector out of the test device includes:
a) confirming that the receiving cylinder 20 of the inner detector receiving device 4 is in a closed state;
b) closing the internal detector receiving end valve 8 and the internal detector sending end valve 7 in sequence;
c) the first receiving valve 19, the second receiving valve 22 and the fourth receiving valve 25 are opened slowly in sequence;
d) closing the receiving valve III 24;
e) closing the second sending valve 22 after the action of the receiving indicator is confirmed;
f) opening a receiving valve III 24;
g) closing the first receiving valve 19;
h) turning off the drive device 1;
i) and taking out the in-pipeline detector.
Claims (6)
1. The circulating traction test device for the in-pipeline detector comprises a driving device, a circulating pipeline, an inner detector sending device and an inner detector receiving device, and is characterized by further comprising the in-pipeline detector, wherein the in-pipeline detector can enter the in-pipeline detector circulating traction test device through the inner detector sending device, can move along the circulating pipeline under the driving of the driving device, and can leave the in-pipeline detector circulating traction test device through the inner detector receiving device.
2. The in-pipe detector circulation pull test device according to claim 1, wherein the circulation pipeline comprises a plurality of sections of defect pipelines simulating pipeline defects, the plurality of sections of defect pipelines are connected by flanges, the plurality of sections of defect pipelines can be bent pipes, and the bending radius of the bent pipes is an integral multiple of the radius of the bent pipes.
3. The in-pipeline detector cyclic pull test device according to claim 2, wherein the plurality of sections of defective pipelines can constitute a vertical lift pipe section and/or a ramp pipe section, and the bending radius of the defective pipeline is 3, 3.5, 4 or 4.5 times of the pipe diameter of the bent pipe.
4. The in-pipe detector cyclic pull test device of claim 3, wherein the vertical riser comprises a plurality of sections of defective pipes, an upper bending radius of the vertical riser is 3 times a pipe diameter of the bent pipe, and a lower bending radius of the vertical riser is 4 times a radius of the bent pipe.
5. The in-pipe detector cyclic pull test device according to any one of claims 1 to 4, wherein the in-pipe detector sending device comprises a sending driver, a sending valve I, a sending cylinder, a sending valve II, a sending valve III, a sending tee joint, a sending indicator, a sending valve and a sending elbow, one end of the sending valve I is connected with the sending driver, the other end of the sending valve I is connected with the sending cylinder, the sending valve II, the sending valve III, the sending tee joint, the sending indicator, the sending valve IV and the sending elbow are sequentially connected in series, the third end of the sending tee joint (14) is connected to the sending driver through the sending valve III, and the bending radius of the sending elbow is 5 times of the pipe diameter of the sending tee joint.
6. The in-pipeline detector cyclic pull test device according to any one of claims 1 to 4, wherein the in-pipeline detector receiving device comprises a liquid receiving tank, a first receiving valve, a first receiving cylinder, a receiving indicator, a second receiving valve, a third receiving valve, a fourth receiving valve and a receiving elbow, one end of the first receiving valve is connected to the liquid receiving tank, the other end of the first receiving valve is connected to the receiving cylinder, the second receiving valve, the third receiving valve, the fourth receiving valve and the receiving elbow are connected in series in sequence, the third end of the third receiving valve is connected to the liquid receiving tank through the third receiving valve, and the bending radius of the receiving elbow is 5 times of the pipe diameter of the receiving elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920864150.5U CN210219052U (en) | 2019-06-11 | 2019-06-11 | Circulating traction test device for pipeline internal detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920864150.5U CN210219052U (en) | 2019-06-11 | 2019-06-11 | Circulating traction test device for pipeline internal detector |
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| CN210219052U true CN210219052U (en) | 2020-03-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131524A (en) * | 2019-06-11 | 2019-08-16 | 智云安科技(北京)有限公司 | A kind of in-pipeline detector circulating draw experimental rig and distraction test method |
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2019
- 2019-06-11 CN CN201920864150.5U patent/CN210219052U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131524A (en) * | 2019-06-11 | 2019-08-16 | 智云安科技(北京)有限公司 | A kind of in-pipeline detector circulating draw experimental rig and distraction test method |
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