CN212391427U - Real-time pressing device of pipeline magnetic flux leakage detector - Google Patents
Real-time pressing device of pipeline magnetic flux leakage detector Download PDFInfo
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- CN212391427U CN212391427U CN202020378784.2U CN202020378784U CN212391427U CN 212391427 U CN212391427 U CN 212391427U CN 202020378784 U CN202020378784 U CN 202020378784U CN 212391427 U CN212391427 U CN 212391427U
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Abstract
The utility model relates to a device is suppressed in real time to pipeline magnetic leakage detector, device is suppressed in real time to pipeline magnetic leakage detector is including suppressing the device body and with the magnetic leakage MFL sensor package, IDOD sensor package that suppress the device body and link to each other, suppress the pump station. When the pressure is increased, an overflow valve on the pressure pump station is opened and the pressure pump station is started, after the air in the pressure cylinder is completely discharged, the overflow valve is closed, and the pressure is gradually increased to 11 MPa; if the pressure is continuously applied for 3 hours under the working condition of 11MPa, the signals of the magnetic flux leakage MFL sensor and the IDOD sensor are normal, no water seepage exists in the sealing position, and other parts do not deform obviously, the pipeline magnetic flux leakage detector is proved to pass the pressure application test. The utility model discloses can gather magnetic leakage MFL sensor and IDOD sensor data in real time, utilize ready-made sealed barrel and the end cover of pipeline magnetic leakage detector to constitute and suppress the container, equipment is simple reliable, is the direct test to pipeline magnetic leakage detector, and the test scheme is with low costs.
Description
Technical Field
The utility model relates to a technical field of pipeline defect check out test set especially relates to a device is suppressed in real time to pipeline magnetic leakage detector.
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.
The leakage magnetic detector is a common in-service detection method for pipeline defects. The leakage magnetic detector needs to operate in an oil and gas pipeline with the pressure as high as 10MPa for a long time, the pressure resistance performance of the leakage magnetic detector is a precondition for pipeline detection, and besides the sealing performance test of a sealing cylinder body loaded with electronic components, the leakage magnetic detector (MFL) used for detecting defects and the pressure resistance performance of a sensor (IDOD) used for distinguishing the defects on the inner wall or the outer wall of the pipeline need to be verified. The existing large-scale special pressure testing device is expensive and cannot realize real-time monitoring.
Disclosure of Invention
The utility model discloses aim at solving prior art's not enough, and provide a device is suppressed in real time to pipeline magnetic leakage detector.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a real-time pressing device of a pipeline magnetic flux leakage detector comprises a pressing device body, and a magnetic flux leakage MFL sensor assembly, an IDOD sensor assembly and a pressing pump station which are connected with the pressing device body;
the pressing device body comprises a pressing cylinder body, an upper end cover fixedly arranged at the upper end of the pressing cylinder body and a lower end cover fixedly arranged at the lower end of the pressing cylinder body, and two-stage seals are arranged among the upper end cover, the lower end cover and the pressing cylinder body;
the magnetic leakage MFL sensor assembly comprises a magnetic leakage MFL sensor positioned inside the pressurizing barrel, a magnetic leakage joint positioned outside the pressurizing barrel and a first threading sealing bolt arranged on the upper end cover, wherein a magnetic leakage signal wire penetrates through the first threading sealing bolt, one end of the magnetic leakage signal wire is connected with the magnetic leakage MFL sensor, the other end of the magnetic leakage signal wire is connected with the magnetic leakage joint, and the magnetic leakage joint is connected with an external magnetic leakage sensor test board;
the IDOD sensor assembly comprises an IDOD sensor positioned in the pressing cylinder, an IDOD joint positioned outside the pressing cylinder and a second threading sealing bolt arranged on the upper end cover, an IDOD signal wire penetrates through the second threading sealing bolt, one end of the IDOD signal wire is connected with the IDOD sensor, the other end of the IDOD signal wire is connected with the IDOD joint, and the IDOD joint is connected with an IDOD test board outside the IDOD sensor;
the pump station of suppressing includes the screwed joint of installation on the upper end cover, screwed joint the inner links to each other and the outer end is connected with the hose with suppressing the barrel inner chamber, the other one end of hose is connected with the pump of suppressing, be equipped with the manometer on the hose.
The upper end cover comprises an upper connecting plate fixed on the upper surface of the pressing barrel through a bolt, an upper sleeve plate is arranged at the bottom of the upper connecting plate, the upper sleeve plate is inserted into the pressing barrel and attached to the inner wall of the pressing barrel, and the upper connecting plate and the upper sleeve plate form a T-shaped structure.
A first axial O-shaped ring is arranged between the upper connecting plate and the upper surface of the pressing cylinder, and a first radial O-shaped ring is arranged between the upper sleeve plate and the inner wall of the pressing cylinder.
The lower end cover comprises a lower connecting plate fixed on the lower surface of the pressing barrel through a bolt, a lower sleeve plate is arranged at the top of the lower connecting plate, the lower sleeve plate is inserted into the pressing barrel and attached to the inner wall of the pressing barrel, and the lower connecting plate and the lower sleeve plate form an inverted T-shaped structure.
And a second axial O-shaped ring is arranged between the lower connecting plate and the lower surface of the pressurizing cylinder, and a second radial O-shaped ring is arranged between the lower sleeve plate and the inner wall of the pressurizing cylinder.
And epoxy resin is adopted for sealing between the magnetic leakage signal wire and the first threading sealing bolt and between the IDOD signal wire and the second threading sealing bolt.
And a thread joint is wound with a thread seal tape.
The method for pressing the pipeline magnetic flux leakage detector by the real-time pressing device comprises the following specific steps:
s1, mounting the second axial O-ring and the second radial O-ring to corresponding positions of the lower end cover;
s2, mounting the lower end cover at the bottom of the pressing cylinder by using a fastening bolt, and vertically placing;
s3, injecting water into the pressurizing cylinder, and enabling the water surface to rise to be close to the upper end face of the pressurizing cylinder;
s4, mounting the first axial O-shaped ring and the first radial O-shaped ring to corresponding positions of the upper end cover;
s5, finishing the installation of the magnetic leakage MFL sensor assembly, the IDOD sensor assembly and the upper end cover;
s6, placing the magnetic flux leakage MFL sensor and the IDOD sensor into the pressing cylinder, and installing the upper end cover on the top of the pressing cylinder by using a fastening bolt;
s7, winding a thread joint of the pressing pump station with a raw material belt and then installing the thread joint at a pressing port of the upper end cover;
s8, firstly, opening an overflow valve on the pressurizing pump station and starting the pressurizing pump station, and after air in the pressurizing cylinder is completely discharged, closing the overflow valve and gradually pressurizing to 11 MPa;
s9, connecting the magnetic flux leakage MFL sensor assembly with an external magnetic flux leakage sensor test board, connecting the IDOD sensor assembly with an external IDOD test board, and measuring data of the two sensors in real time;
s10, observing whether water seepage occurs at the sealing positions of the pressing cylinder, the magnetic leakage MFL sensor assembly and the IDOD sensor assembly, if yes, stopping maintaining, and if not, continuing to perform pressing test;
s11, if the pressure is continuously applied for 3 hours under the working condition of 11MPa, the signals of the magnetic flux leakage MFL sensor and the IDOD sensor are normal, no water seepage exists in the sealing position, and other parts do not deform obviously, so that the pipeline magnetic flux leakage detector is proved to pass the pressure application test.
The utility model has the advantages that: the utility model provides a device is suppressed to pipeline magnetic leakage detector can gather magnetic leakage MFL sensor and IDOD sensor data in real time to utilize the ready-made sealed barrel and the end cover of pipeline magnetic leakage detector to constitute and suppress the container, equipment is simple reliable, is the direct test to pipeline magnetic leakage detector, and the test scheme cost is lower.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1-pressing the cylinder; 2-upper end cover; 3-lower end cover; 4-leakage MFL sensor; 5-magnetic leakage joint; 6-first threading sealing bolt; 7-magnetic leakage signal line; an 8-IDOD sensor; a 9-IDOD linker; 10-a second threading sealing bolt; 11-IDOD signal lines; 12-a threaded joint; 13-a hose; 14-a pressurizing pump; 15-an upper connecting plate; 16-upper sheathing board; 17-a first axial O-ring; 18-a first radial O-ring; 19-a lower connecting plate; 20-lower sheathing board; 21-second axial O-ring; 22-a second radial O-ring;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in fig. 1, a real-time pressing device of a pipeline magnetic flux leakage detector comprises a pressing device body, and a magnetic flux leakage MFL sensor assembly, an IDOD sensor assembly and a pressing pump station which are connected with the pressing device body;
the pressing device body comprises a pressing cylinder body 1, an upper end cover 2 fixedly arranged at the upper end of the pressing cylinder body 1 and a lower end cover 3 fixedly arranged at the lower end of the pressing cylinder body 1, wherein two-stage sealing is arranged between the upper end cover 2, the lower end cover 3 and the pressing cylinder body 1;
the magnetic leakage MFL sensor assembly comprises a magnetic leakage MFL sensor 4 positioned inside the pressurizing barrel body 1, a magnetic leakage joint 5 positioned outside the pressurizing barrel body 1 and a first threading sealing bolt 6 installed on the upper end cover 2, a magnetic leakage signal line 7 penetrates through the first threading sealing bolt 6, one end of the magnetic leakage signal line 7 is connected with the magnetic leakage MFL sensor 4, the other end of the magnetic leakage signal line is connected with the magnetic leakage joint 5, and the magnetic leakage joint 5 is connected with an external magnetic leakage sensor testing board;
the IDOD sensor component comprises an IDOD sensor 8 positioned inside the pressing cylinder body 1, an IDOD joint 9 positioned outside the pressing cylinder body 1 and a second threading sealing bolt 10 installed on the upper end cover 2, an IDOD signal line 11 penetrates through the second threading sealing bolt 10, one end of the IDOD signal line 11 is connected with the IDOD sensor 8, the other end of the IDOD signal line is connected with the IDOD joint 9, and the IDOD joint 9 is connected with an IDOD test board outside;
the booster pump station comprises a threaded connector 12 installed on the upper end cover 2, the inner end of the threaded connector 12 is connected with an inner cavity of the booster cylinder body 1, the outer end of the inner cavity is connected with a hose 13, the other end of the hose 13 is connected with a booster pump 14, and a pressure gauge is arranged on the hose 13.
The upper end cover 2 comprises an upper connecting plate 15 fixed on the upper surface of the pressing cylinder body 1 through bolts, an upper sleeve plate 16 is arranged at the bottom of the upper connecting plate 15, the upper sleeve plate 16 is inserted into the pressing cylinder body 1 and is attached to the inner wall of the pressing cylinder body 1, and the upper connecting plate 15 and the upper sleeve plate 16 form a T-shaped structure.
A first axial O-shaped ring 17 is arranged between the upper connecting plate 15 and the upper surface of the pressing cylinder body 1, and a first radial O-shaped ring 18 is arranged between the upper sleeve plate 16 and the inner wall of the pressing cylinder body 1.
The lower end cover 3 comprises a lower connecting plate 19 fixed on the lower surface of the pressing barrel body 1 through a bolt, a lower sleeve plate 20 is arranged at the top of the lower connecting plate 19, the lower sleeve plate 20 is inserted into the pressing barrel body 1 and is attached to the inner wall of the pressing barrel body 1, and the lower connecting plate 19 and the lower sleeve plate 20 form an inverted T-shaped structure.
And a second axial O-shaped ring 21 is arranged between the lower connecting plate 19 and the lower surface of the pressurizing cylinder 1, and a second radial O-shaped ring 22 is arranged between the lower sleeve plate 20 and the inner wall of the pressurizing cylinder 1.
And epoxy resin is adopted for sealing between the leakage magnetic signal wire 7 and the first threading sealing bolt 6 and between the IDOD signal wire 11 and the second threading sealing bolt 10.
The thread joint 12 is wound with raw material belts.
The method for pressing the pipeline magnetic flux leakage detector by the real-time pressing device comprises the following specific steps:
s1, mounting the second axial O-ring 21 and the second radial O-ring 22 to corresponding positions of the lower end cover 3;
s2, mounting the lower end cover 3 at the bottom of the pressing cylinder 1 by using a fastening bolt, and vertically placing;
s3, injecting water into the pressurizing cylinder 1, and enabling the water surface to rise to be close to the upper end face of the pressurizing cylinder 1;
s4, mounting the first axial O-ring 17 and the first radial O-ring 18 to corresponding positions of the upper end cover 2;
s5, finishing the installation of the magnetic leakage MFL sensor assembly, the IDOD sensor assembly and the upper end cover 2;
s6, placing the magnetic flux leakage MFL sensor 4 and the IDOD sensor 8 into the pressing cylinder 1, and installing the upper end cover 2 on the top of the pressing cylinder 1 by using fastening bolts;
s7, winding the thread joint 12 of the pressurizing pump station with the raw material belt and then installing the thread joint at the pressurizing port of the upper end cover 2;
s8, firstly, opening an overflow valve on the pressurizing pump station and starting the pressurizing pump station, and after air in the pressurizing cylinder body 1 is completely discharged, closing the overflow valve and gradually pressurizing to 11 MPa;
s9, connecting the magnetic flux leakage MFL sensor assembly with an external magnetic flux leakage sensor test board, connecting the IDOD sensor assembly with an external IDOD test board, and measuring data of the two sensors in real time;
s10, observing whether water seepage occurs at the sealing positions of the pressing cylinder 1, the magnetic leakage MFL sensor assembly and the IDOD sensor assembly, if yes, stopping maintaining, and if not, continuing to perform pressing test;
s11, if the pressure is continuously applied for 3 hours under the working condition of 11MPa, the signals of the magnetic flux leakage MFL sensor 4 and the IDOD sensor 8 are normal, no water seepage exists at the sealing position, and other parts do not deform obviously, so that the pipeline magnetic flux leakage detector is proved to pass the pressure application test.
The utility model discloses a device is suppressed in real time to low-cost pipeline magnetic leakage detector, utilize pipeline magnetic leakage detector's sealed barrel and end cover to constitute and suppress the device body, directly put into with magnetic leakage MFL sensor 4 and IDOD sensor 8 simultaneously and suppress in the barrel 1, utilize and suppress the pump station and carry out the pressurization test, but real-time measurement magnetic leakage MFL sensor 4 and IDOD sensor 8's data, and observe and suppress the leakage condition of barrel 1, thereby reach the purpose of verifying pipeline magnetic leakage detector resistance to pressure, equipment is simple and reliable, and be the direct test to pipeline magnetic leakage detector, the test scheme cost is lower.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (5)
1. A real-time pressing device of a pipeline magnetic flux leakage detector is characterized by comprising a pressing device body, a magnetic flux leakage MFL sensor assembly, an IDOD sensor assembly and a pressing pump station, wherein the magnetic flux leakage MFL sensor assembly, the IDOD sensor assembly and the pressing pump station are connected with the pressing device body;
the device comprises a pressing device body and a pressing device body, wherein the pressing device body comprises a pressing cylinder body (1), an upper end cover (2) fixedly arranged at the upper end of the pressing cylinder body (1), and a lower end cover (3) fixedly arranged at the lower end of the pressing cylinder body (1), and two-stage sealing is arranged among the upper end cover (2), the lower end cover (3) and the pressing cylinder body (1);
the magnetic leakage MFL sensor component comprises a magnetic leakage MFL sensor (4) positioned inside the pressing barrel body (1), a magnetic leakage joint (5) positioned outside the pressing barrel body (1), and a first threading sealing bolt (6) installed on the upper end cover (2), wherein a magnetic leakage signal wire (7) is penetrated on the first threading sealing bolt (6), one end of the magnetic leakage signal wire (7) is connected with the magnetic leakage MFL sensor (4) and the other end of the magnetic leakage signal wire is connected with the magnetic leakage joint (5), and the magnetic leakage joint (5) is connected with an external magnetic leakage sensor test board;
the IDOD sensor component comprises an IDOD sensor (8) positioned in the pressing cylinder body (1), an IDOD joint (9) positioned outside the pressing cylinder body (1) and a second threading sealing bolt (10) installed on the upper end cover (2), an IDOD signal line (11) penetrates through the second threading sealing bolt (10), one end of the IDOD signal line (11) is connected with the IDOD sensor (8), the other end of the IDOD signal line is connected with the IDOD joint (9), and the IDOD joint (9) is connected with an IDOD test board outside;
the booster pump station comprises a threaded connector (12) installed on an upper end cover (2), the inner end of the threaded connector (12) is connected with an inner cavity of the booster cylinder body (1), the outer end of the inner cavity of the booster cylinder body is connected with a hose (13), the other end of the hose (13) is connected with a booster pump (14), and a pressure gauge is arranged on the hose (13).
2. The real-time device of suppressing of pipeline magnetic leakage detector of claim 1, characterized in that, upper end cover (2) include through the bolt fastening at the upper junction plate (15) of suppressing barrel (1) upper surface, upper junction plate (15) bottom is equipped with upper sheathing board (16), upper sheathing board (16) insert suppress in barrel (1) and laminate mutually with suppressing barrel (1) inner wall, upper junction plate (15), upper sheathing board (16) constitute T shape structure.
3. The real-time pipe leakage detector pressing device according to claim 2, wherein a first axial O-shaped ring (17) is arranged between the upper connecting plate (15) and the upper surface of the pressing cylinder (1), and a first radial O-shaped ring (18) is arranged between the upper sleeve plate (16) and the inner wall of the pressing cylinder (1).
4. The real-time device of suppressing of pipeline magnetic leakage detector of claim 1, characterized in that, lower end cover (3) include through bolt fastening at the lower connecting plate (19) of suppressing barrel (1) lower surface, lower connecting plate (19) top is equipped with lower lagging (20), lower lagging (20) insert suppress in barrel (1) and laminate mutually with suppress barrel (1) inner wall, lower connecting plate (19), lower lagging (20) constitute the structure of falling T-shaped.
5. The real-time pipe leakage detector pressing device according to claim 4, wherein a second axial O-ring (21) is arranged between the lower connecting plate (19) and the lower surface of the pressing cylinder (1), and a second radial O-ring (22) is arranged between the lower sleeve plate (20) and the inner wall of the pressing cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020378784.2U CN212391427U (en) | 2020-03-24 | 2020-03-24 | Real-time pressing device of pipeline magnetic flux leakage detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020378784.2U CN212391427U (en) | 2020-03-24 | 2020-03-24 | Real-time pressing device of pipeline magnetic flux leakage detector |
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| CN202020378784.2U Active CN212391427U (en) | 2020-03-24 | 2020-03-24 | Real-time pressing device of pipeline magnetic flux leakage detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426745A (en) * | 2020-03-24 | 2020-07-17 | 智云安科技(北京)有限公司 | Real-time pressing device and method for pipeline magnetic flux leakage detector |
| CN113252458A (en) * | 2021-04-22 | 2021-08-13 | 上海市质量监督检验技术研究院 | Pump station barrel strength is suppressed test device |
-
2020
- 2020-03-24 CN CN202020378784.2U patent/CN212391427U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426745A (en) * | 2020-03-24 | 2020-07-17 | 智云安科技(北京)有限公司 | Real-time pressing device and method for pipeline magnetic flux leakage detector |
| CN113252458A (en) * | 2021-04-22 | 2021-08-13 | 上海市质量监督检验技术研究院 | Pump station barrel strength is suppressed test device |
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