CN210481525U - Potential testing device for buried pipeline - Google Patents
Potential testing device for buried pipeline Download PDFInfo
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- CN210481525U CN210481525U CN201921588605.1U CN201921588605U CN210481525U CN 210481525 U CN210481525 U CN 210481525U CN 201921588605 U CN201921588605 U CN 201921588605U CN 210481525 U CN210481525 U CN 210481525U
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Abstract
The utility model relates to a buried pipeline current potential testing arrangement, fixed plate including the bottom, be fixed with non-metallic box on the fixed plate, be equipped with the universal meter in the non-metallic box, reference electrode coil, test block coil and switch, the universal meter, reference electrode coil, test block coil and switch are fixed in non-metallic box or are passed non-metallic box and fix on the fixed plate, the end of reference electrode coil even has reference electrode, test block coil's end even has the test block, reference electrode coil connection reference electrode is passed through to the one end of universal meter, the other end passes through the switch and the wire is connected with the test stake outside the device, the test stake still links to each other with test block coil and test block through wire. The device not only improves the accuracy of potential measurement data, but also improves the rapidness of potential data measurement, and saves the time of potential test.
Description
Technical Field
The utility model relates to a current potential testing arrangement belongs to pipeline safety technical field.
Background
The corrosion integrity management work is mainly to identify and evaluate corrosion risk factors in daily operation of oil and gas pipelines, then to formulate a corresponding risk control strategy, and to continuously improve the identified adverse factors, so as to control the risk level of the pipeline operation within a reasonable and acceptable range. The corrosion risk of buried metals is mainly the risk caused by corrosion caused by the interaction of metal pipelines and conductive media such as soil, water and the like. Factors affecting the risk of corrosion of buried metals have three main aspects: corrosion protection layer integrity, cathodic protection system integrity, and effectiveness of the cathodic protection system. The cathodic protection effectiveness detection is mainly used for detecting cathodic protection potential, stray interference current and corrosion environment of the pipeline along the line and then carrying out evaluation analysis according to relevant standards.
When the current natural gas pipeline potential is tested, the main problems are inaccurate test, long test time and easy damage of a test tool. As shown in fig. 1, when measuring the power-off potential, the test piece is required to be fully polarized, then the test piece is disconnected from the pipeline, the potential value at the moment of disconnection is measured, and the potential value at the moment of disconnection is read under manual control during field measurement, so that the influence of human factors is large; in normal test, the wires are easy to be placed in a mess, the contact is poor, and the test effect is influenced; practice proves that the accuracy of the test is also influenced by the irradiation of sunlight on the copper sulfate reference electrode; the effect of the on-site reference electrode contacting the ground, the buried depth of the test piece and the effect of contacting the ground are greatly influenced on the measurement result, so the measured power-off potential is not accurate enough. There is no fixed tool box to collect and store the testing tools, so that the tools and the testing wires are very easy to be damaged in the frequent use and collection process. When each test pile is subjected to potential test, the whole process from taking the tool, embedding the test piece and the reference electrode, testing the potential data to collecting the test tool generally takes about 45 minutes (the polarization time is 30 minutes), and the time is long. Therefore, a special tool or device is developed, the accuracy and the efficiency of the potential test can be improved, the safety of the pipeline body is guaranteed, the potential test time is saved, and sufficient golden time is reserved for pipeline patrol, so that the safe and stable operation of the pipeline is better guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the aforesaid not enough and providing a buried pipeline current potential testing arrangement, the device has not only improved the accuracy of current potential measurement data, has still improved the rapidity of current potential data measurement, has practiced thrift the time of current potential test.
The utility model discloses the technical scheme who takes does:
the utility model provides a buried pipeline current potential testing arrangement, fixed plate including the bottom, be fixed with non-metallic box on the fixed plate, be equipped with the universal meter in the non-metallic box, the reference electrode coil, test strip coil and switch, the universal meter, the reference electrode coil, test strip coil and switch are fixed in non-metallic box or are passed non-metallic box and fix on the fixed plate, the end of reference electrode coil even has the reference electrode, the end of test strip coil even has the test block, the reference electrode coil connection reference electrode is passed through to the one end of universal meter, the other end passes through the switch and the wire is connected with the test stake outside the device, the test stake still links to each other with test.
The side of the non-metal box is provided with a reference electrode and a test piece placing groove.
The non-metal box is internally provided with a foam adhesive solidification reinforcing group.
The switch is a shared switch.
A sealing cover is arranged on the non-metal box, and preferably an acrylic plate is fixedly sealed.
The non-metal box is preferably a plastic box, and the fixing plate is preferably a steel plate.
And a black adhesive tape winding layer is arranged outside the reference electrode.
The reference electrode coil and the test piece coil are both hand coils.
Foretell buried pipeline potential testing arrangement still includes a pair of excavation instrument, is used for the quick excavation of reference electrode and test block respectively, the excavation instrument is T shape tubulose, digs the end and is sharp-edged frustum shape of a face.
Use the utility model discloses the potential value that records coincide basically with the value that high frequency data record appearance surveyed, the rate of accuracy has reached 98%, does not appear the condition that testing tool damaged after using half a year, and the test time of every test stake is on average 33 minutes (test block polarization time is 30 minutes).
The utility model improves the accuracy of the potential measurement data, improves the effectiveness of the yin protection system, and prevents the corrosion of the pipeline, thereby ensuring the safety of the pipeline from the pipeline body; on the other hand, the potential data measuring rapidity is improved, the potential testing time is saved, more pipeline patrol and protection and propaganda time is reserved, the action of damaging the pipeline is actively prevented and controlled better, the safety of the pipeline is guaranteed from the outside of the pipeline, the pipeline body and the outside are used for guaranteeing the safe and stable operation of the pipeline, and the management of the integrity of the pipeline is assisted.
Drawings
FIG. 1 is a schematic diagram of a conventional power-down potential connection;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the excavation tool of the present invention;
FIG. 4 is a schematic diagram of the wiring of the present invention;
the device comprises a fixing plate 1, a nonmetal box 2, a universal meter 3, a reference electrode coil 4, a test piece coil 5, a switch 6, a reference electrode 7, a test piece 8, a test pile 9, a reference electrode and test piece placing groove 10, a foam adhesive solidification reinforcing group 11, a sealing cover 12 and a lead 13.
Detailed Description
The following further description is made in conjunction with the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 2, a buried pipeline current potential testing arrangement, fixed plate 1 including the bottom, be fixed with nonmetal box 2 on the fixed plate 1, be equipped with universal meter 3 in the nonmetal box 2, reference electrode coil 4, test block coil 5 and switch 6, universal meter, reference electrode coil, test block coil and switch are fixed in nonmetal box 2 or pass nonmetal box and fix on fixed plate 1, reference electrode coil 4's end even has reference electrode 7, test block coil 5's end even has test block 8, universal meter 3's one end is passed through reference electrode coil 4 and is connected reference electrode 7, the other end passes through switch 6 and wire 13 and is connected with the test stake 9 outside the device, test stake 9 still links to each other with test block coil 5 and test block 8 through wire and switch 6. The side of the nonmetal box is provided with a reference electrode and a test piece placing groove 10, and the nonmetal box is filled with a foam adhesive solidification reinforcing group 11. The non-metal box is provided with a sealing cover 12, and the reference electrode coil and the test piece coil are hand coils.
Buried pipeline potential testing arrangement still includes a pair of excavation instrument, is used for the quick excavation of reference electrode and test block respectively, the excavation instrument is T shape tubulose, digs the end and is sharp-edged frustum shape of a section. According to the diameter of the test piece of 15mm and the reference diameter of 30mm, the diameter of the manufactured excavation tool is 17mm and 33mm respectively, and the length of the manufactured excavation tool is 10cm and 19cm respectively.
The during operation opens buried pipeline current potential testing arrangement closing cap, draws out reference electrode and test block from reference electrode and test block standing groove earlier, utilizes the excavation instrument to excavate rapidly reference electrode and test block underground, buries the back underground, is connected wire and test pile, treats test block fully polarize the back, controls being connected of test block and pipeline through the switch, measures the outage electric potential with the universal meter. After the measurement is finished, the coil is retracted by hand, and the testing device is finished.
The present invention has been described in detail with reference to the specific embodiments, and the scope of the present invention is not limited thereto.
Claims (8)
1. The utility model provides a buried pipeline current potential testing arrangement, which is characterized by, the fixed plate including the bottom, be fixed with non-metallic box on the fixed plate, be equipped with the universal meter in the non-metallic box, reference electrode coil, test strip coil and switch, the universal meter, reference electrode coil, test strip coil and switch are fixed in non-metallic box or pass non-metallic box and fix on the fixed plate, the end of reference electrode coil even has reference electrode, the end of test strip coil even has the test block, reference electrode coil connection reference electrode is passed through to the one end of universal meter, the other end passes through the switch and the wire is connected with the test stake outside the device, the test stake still links to each other with test strip.
2. A buried pipeline electric potential testing device as claimed in claim 1, wherein the side of said non-metal box is provided with a reference electrode and a test piece placing groove.
3. A buried pipeline potential testing device as claimed in claim 1, wherein a foam gel solidification strengthening group is arranged in the non-metallic box.
4. A buried pipeline potential testing device as claimed in claim 1 wherein the switch is a common switch.
5. A buried pipeline potential testing device as claimed in claim 1, wherein a sealing cover is provided on the non-metal box.
6. A buried pipeline potential testing device as claimed in claim 1, wherein the non-metal box is selected from a plastic box, and the fixing plate is selected from a steel plate.
7. A buried pipeline potential testing device as claimed in claim 1, wherein the reference electrode is externally provided with a black tape winding layer.
8. A buried pipeline potential testing device as claimed in claim 1, further comprising a pair of excavation tools for rapid excavation of the reference electrode and test block, respectively, the excavation tools being T-shaped tubular with an earth end of sharp inclined cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921588605.1U CN210481525U (en) | 2019-09-24 | 2019-09-24 | Potential testing device for buried pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921588605.1U CN210481525U (en) | 2019-09-24 | 2019-09-24 | Potential testing device for buried pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210481525U true CN210481525U (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921588605.1U Active CN210481525U (en) | 2019-09-24 | 2019-09-24 | Potential testing device for buried pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210481525U (en) |
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2019
- 2019-09-24 CN CN201921588605.1U patent/CN210481525U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200923 Address after: 100020 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: China Petroleum & Chemical Corp. Patentee after: YUJI PIPELINE COMPANY OF SINOPEC GAS Co. Address before: 250014 No. 15002, Shiji Avenue, Lixia District, Jinan City, Shandong Province Patentee before: YUJI PIPELINE COMPANY OF SINOPEC GAS Co. |
|
| TR01 | Transfer of patent right |