CN220820135U - Pile-free stray current interference detection evaluation device - Google Patents
Pile-free stray current interference detection evaluation device Download PDFInfo
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- CN220820135U CN220820135U CN202322359054.4U CN202322359054U CN220820135U CN 220820135 U CN220820135 U CN 220820135U CN 202322359054 U CN202322359054 U CN 202322359054U CN 220820135 U CN220820135 U CN 220820135U
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- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 238000011156 evaluation Methods 0.000 title claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims abstract description 32
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000005260 corrosion Methods 0.000 claims abstract description 9
- 230000010287 polarization Effects 0.000 claims description 45
- 239000000523 sample Substances 0.000 claims description 42
- 238000004891 communication Methods 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000005057 refrigeration Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical class [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- 239000005078 molybdenum compound Substances 0.000 claims description 3
- 150000002752 molybdenum compounds Chemical class 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000007405 data analysis Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a pile-free stray current interference detection and evaluation device, which relates to the technical field of corrosion monitoring, in particular to a pile-free stray current interference detection and evaluation device which is used for being pre-buried near an underground pipeline and monitoring stray current near a pipeline interference source and comprises a protective shell for protecting internal parts and circuit elements; this no stake stray current interference detection evaluation device is connected and seals with the pipeline, buries in the monitoring point that has the interference source, can acquire the circular telegram potential of this point, outage potential, self-corrosion potential and alternating current interference voltage's data, continuously monitor the pipeline and receive stray current interference condition and wireless transmission to terminal system, except can avoid the waste that the test pile body damage or the wiring error caused, can also real-time, accurate monitoring buried pipeline receive stray current to do the condition, the accurate location is disturbed regional, carries out the drainage device setting through data analysis. Compared with the traditional detection method, the device saves a great deal of manpower and material resources.
Description
Technical Field
The utility model relates to the technical field of corrosion monitoring, in particular to a pile-free stray current interference detection and evaluation device.
Background
Along with the rapid development of national economy, the application of long-distance transmission pipelines and urban pipe networks is more and more widespread, the parallel or crossing conditions of high-voltage transmission lines and electrified railways and the long-distance transmission pipelines are gradually increased, and the pipeline is subjected to serious stray current interference. The stray current interference can accelerate pipeline corrosion, the pipe wall is gradually thinned due to corrosion, even corrosion perforation and leakage events occur, and the pipeline surrounding environment can be damaged, and even life safety of residents is threatened. Stray current has high strength and high harmfulness, has wide application range and high randomness, is not easy to find in time at a leakage position, and needs to carry out a large amount of earthwork during maintenance, so that the investment is large. Therefore, how to timely detect the interference of the stray current and accurately evaluate the corrosion degree of the pipeline under the interference of the stray current is an urgent problem to be solved in the current production management.
The traditional field test method comprises the following steps: the staff uses the digital multimeter to connect the pipeline and carry out data acquisition (power-on potential and alternating-current interference voltage) along the test pile, and for detecting the position where the alternating-current interference voltage is greater than 4V (judgment basis: standard GB/T50698), the staff uses the stray current data recorder capable of high precision to install into the test pile for continuous test. The test method has the limitation of collecting data, is difficult to test the power-off potential, and is easy to occur in the actual test that the position of the test pile is not easy to reach and the test pile is damaged artificially. The data are collected manually and continuously detected by using a high-precision stray current data recorder and the like, and besides the loss risk of the valuable instrument, a measurer needs to return to the test point to pick up the instrument and then export the instrument to a computer for data analysis.
At present, the influence degree of the stray current interference on a long-distance pipeline is accurately detected, after a pipeline cathode protection system is put into operation, the stray current interference detection along the site is carried out, the alternating current interference voltage data at the position of a test pile is collected through a data recorder, the stray current interference condition evaluation is carried out according to the detection result, but the method has long detection period and can not find problems in time.
In published chinese patent application, publication No.: CN217180689U, patent name: the reference electrode device can timely give out early warning information when the reference electrode needs to be replaced through detecting the contact state of the reference electrode and soil and the self-polarization potential stability, further ensures long-term safe and effective operation of experiments or production, and prevents the influence on a test result caused by continuous test under a failure state. However, the prior art still has the above-mentioned problems.
Disclosure of utility model
(One) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a pile-free stray current interference detection and evaluation device, which solves the problems in the background art.
(II) technical scheme
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the pile-free stray current interference detection and evaluation device is used for being pre-buried near an underground pipeline and monitoring stray current near a pipeline interference source and comprises a protective shell for protecting internal parts and circuit elements, wherein a plurality of chambers are respectively arranged in the protective shell, a detection assembly, a battery pack and a circuit board are respectively arranged in the chambers in the protective shell, a microprocessor is integrated on the circuit board, and the microprocessor comprises an interface conversion unit, an electrode test circuit and a driving unit; the detection assembly comprises a polarization probe A, a polarization probe B and a reference electrode respectively, wherein the polarization probe A, the polarization probe B and the reference electrode penetrate through the shell wall of the protective shell, and one ends of the polarization probe A, the polarization probe B and the reference electrode, which are positioned in the protective shell, are electrically connected with the interface conversion unit; the circuit board is provided with a communication element which is in communication connection with the microprocessor and is used for transmitting detected information data to an external equipment terminal.
Optionally, the inside of protecting crust is provided with refrigeration chamber, first cavity, second cavity, third cavity respectively, be provided with a plurality of conducting strips in the refrigeration chamber, each the one end of conducting strip runs through the protecting crust wall and is located the outside of protecting crust, each the other end of conducting strip runs through the refrigeration chamber of protecting crust and lays in each inner chamber of protecting crust, each the junction of conducting strip and protecting crust is provided with the sealing member.
Optionally, the polarization probe a, the polarization probe B and the reference electrode penetrate through the first cavity of the protective shell, and the end parts are electrically connected with the interface conversion unit; molybdenum compound filler is piled in the first cavity of the protective shell.
Optionally, the circuit board is disposed in the second cavity of the protective housing, the battery pack is disposed in the third cavity of the protective housing, and the circuit board is electrically connected with the battery pack.
Optionally, the polarization probe a, the polarization probe B and the reference electrode are electrically connected with the electrode test circuit respectively; the interface conversion unit is electrically connected with the electrode test circuit and the driving unit respectively.
Alternatively, the polarization probe a may be a self-etching test piece, the polarization probe B may be a polarization test piece, and the reference electrode may be a saturated copper sulfate reference electrode.
Optionally, the detection assembly further includes a cable, where the cable may be a zero cable, and the cable is used to weld with the tested pipeline.
Optionally, the circuit board is electrically connected with the microprocessor and the communication element respectively.
(III) beneficial effects
The utility model provides a pile-free stray current interference detection and evaluation device, which has the following beneficial effects:
This no stake stray current interference detection evaluation device is connected and seals with the pipeline, buries in the monitoring point that has the interference source, can acquire the circular telegram potential of this point, outage potential, self-corrosion potential and alternating current interference voltage's data, continuously monitor the pipeline and receive stray current interference condition and wireless transmission to terminal system, except can avoid the waste that the test pile body damage or the wiring error caused, can also real-time, accurate monitoring buried pipeline receive stray current to do the condition, the accurate location is disturbed regional, carries out the drainage device setting through data analysis. Compared with the traditional detection method, the device saves a great deal of manpower and material resources.
Drawings
FIG. 1 is a schematic diagram of a structure (including wiring) of a pile-free stray current interference detection and evaluation device of the utility model;
FIG. 2 is a schematic diagram of a stray current disturbance evaluation system (including wiring);
Fig. 3 is a schematic diagram of a cross-sectional structure of the pile-free stray current interference detection and evaluation device of the present utility model.
In the figure: 1. a detection assembly; 101. a polarization probe A; 102. a polarization probe B; 103. a reference electrode; 2. a pipe; 3. welding spots; 4. a cable; 5. a protective shell; 501. a refrigerating chamber; 502. a first chamber; 503. a second chamber; 504. a third chamber; 6. a circuit board; 7. a battery pack.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 2, the pile-free stray current interference detection and evaluation device is used in cooperation with a stray current interference evaluation system. The pile-free stray current interference detection and evaluation device can be in communication connection with a stray current interference evaluation system through an Ethernet channel or a SCADA system 485 signal, so that data information transmission is realized, and the condition that the monitoring pipeline 2 is interfered by stray current can be continuously transmitted to a system terminal.
Referring to fig. 1 to 3, the present utility model provides the following technical solutions: the pile-free stray current interference detection and evaluation device is used for being pre-buried near an underground pipeline and monitoring stray current near a pipeline interference source and comprises a protective shell 5 for protecting internal parts and circuit elements. The inside of the protecting shell 5 is respectively provided with a plurality of chambers, the inside of the protecting shell 5 is respectively provided with a detecting component 1, a battery pack 7 and a circuit board 6, the circuit board 6 is integrated with a microprocessor, and the microprocessor comprises an interface conversion unit, an electrode testing circuit and a driving unit.
The detection assembly 1 comprises a polarization probe A101, a polarization probe B102 and a reference electrode 103, wherein the polarization probe A101, the polarization probe B102 and the reference electrode 103 penetrate through the shell wall of the protective shell, and one ends of the polarization probe A101, the polarization probe B102 and the reference electrode 103, which are positioned in the protective shell, are electrically connected with the interface conversion unit. The circuit board 6 is provided with a communication element which is in communication connection with the microprocessor and is used for transmitting detected information data to an external equipment terminal. The circuit board 6 is electrically connected with the microprocessor and the communication element respectively.
The battery pack 7 is used for supplying power to the pile-free stray current interference detection and evaluation device. The detection assembly 1 is used to monitor the pipe 2 for stray currents in the vicinity of the source of interference. The communication element is in communication connection with an external device (stray current interference evaluation system). The microprocessor is provided with a control program (software part) for classifying the monitored data. The communication element includes a data telemetry interface.
The inside of the protecting shell 5 is provided with a refrigerating cavity 501, a first cavity 502, a second cavity 503 and a third cavity 504 respectively, a plurality of heat conducting fins are arranged in the refrigerating cavity 501, one end of each heat conducting fin penetrates through the wall of the protecting shell 5 and is located outside the protecting shell 5, the other end of each heat conducting fin penetrates through the refrigerating cavity 501 of the protecting shell 5 and is arranged in each inner cavity of the protecting shell 5, and a sealing element is arranged at the joint of each heat conducting fin and the protecting shell 5.
The device disclosed by the application needs to be pre-buried in the ground and close to the pipeline 2, a heat source is formed in the running process of the battery pack 7 and other element gas pieces positioned in the protective shell 5, and in order to avoid the problem of unsmooth running of the device caused by higher heat, a plurality of heat conducting fins penetrating through the wall of the protective shell 5 are arranged on the protective shell 5 to conduct heat dissipation, so that the heat in the protective shell 5 is transferred to the external soil. Mica sheets are laid on the surfaces of the inner cavities of the protective shell 5.
More specifically, the polarization probe a101, the polarization probe B102 and the reference electrode 103 penetrate through the first cavity 502 of the protective shell 5, and the end parts are electrically connected with the interface conversion unit; the first chamber 502 of the protective housing 5 is filled with a molybdenum compound filler.
One end (the end located outside the protective housing 5) of the polarization probe a101, the polarization probe B102, the reference electrode 103 is located in the soil, and good contact is ensured with the soil.
The circuit board 6 is disposed in the second chamber 503 of the protection housing 5, the battery pack 7 is disposed in the third chamber 504 of the protection housing 5, and the circuit board 6 is electrically connected to the battery pack 7. Wherein the battery pack 7 is prevented from being in direct contact with the circuit board 6.
The polarization probe A101, the polarization probe B102 and the reference electrode 103 are respectively and electrically connected with the electrode test circuit; the interface conversion unit is electrically connected with the electrode test circuit and the driving unit respectively.
Further specifically, polarization probe a101 may be a self-etching test piece, polarization probe B102 may be a polarization test piece, and reference electrode 103 may be a saturated copper sulfate reference electrode.
Specifically, the detection assembly 1 further includes a cable 4, where the cable 4 may be a zero cable, and the cable 4 is used to weld with the tested pipeline 2. One end of the cable 4 is electrically connected with the pipeline, and the other end is electrically connected with the circuit board.
When in use, the utility model is characterized in that: when the condition that the pipeline 2 is interfered by stray current is required to be detected and evaluated, the device disclosed by the utility model is buried in the region with the interference sources at a plurality of positions along the pipeline 2, real-time detection and long-time continuous detection are carried out, and the actual interfered condition of the interference sources at the plurality of positions is comprehensively analyzed according to detection data. As shown in fig. 2, the device of the utility model can reserve a data remote transmission interface, and can transmit the pipeline interference data acquired by the data acquisition device to the terminal server based on 485 signals of an ethernet channel or an SCADA system. The device disclosed by the utility model needs to be preserved, sealed and buried in soil, the buried depth is the same as that of the monitored buried pipeline 2, and the buried pipeline is connected with the pipeline 2 through a cable 4 (the tail end of the cable 4 is welded with the pipeline 2, as shown by a welding spot 3).
The battery adopts a long-acting battery and is used for supplying power to the pile-free detection device, and the pile-free detection device are required to be subjected to corrosion-prevention sealing treatment together. The pile-free detection device and the battery are made of waterproof materials, and the connecting device and the interface should be subjected to waterproof treatment.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. Pile-free stray current interference detection evaluation device is used for being pre-buried near an underground pipeline and monitoring stray current near a pipeline interference source, and comprises a protective shell (5) for protecting internal parts and circuit elements, and is characterized in that: the device comprises a protective shell (5), a detection assembly (1), a battery pack (7) and a circuit board (6), wherein a plurality of chambers are respectively arranged in the protective shell (5), the chambers in the protective shell (5) are respectively provided with the detection assembly, the battery pack and the circuit board (6), and a microprocessor is integrated on the circuit board (6) and comprises an interface conversion unit, an electrode test circuit and a driving unit; the detection assembly (1) comprises a polarization probe A (101), a polarization probe B (102) and a reference electrode (103) respectively, wherein the polarization probe A (101), the polarization probe B (102) and the reference electrode (103) penetrate through the shell wall of the protective shell, and one ends of the polarization probe A (101), the polarization probe B (102) and the reference electrode (103) positioned in the protective shell are electrically connected with the interface conversion unit; the circuit board (6) is provided with a communication element which is in communication connection with the microprocessor and is used for transmitting detected information data to an external equipment terminal.
2. The pile-free stray current interference detection and evaluation device according to claim 1, wherein: the inside of protecting crust (5) is provided with refrigeration chamber (501), first cavity (502), second cavity (503), third cavity (504) respectively, be provided with a plurality of conducting strips in refrigeration chamber (501), each the one end of conducting strip runs through protecting crust (5) wall and is located the outside of protecting crust (5), each the other end of conducting strip runs through refrigeration chamber (501) of protecting crust (5) and lays in each inner chamber of protecting crust (5), each the junction of conducting strip and protecting crust (5) is provided with the sealing member.
3. The pile-free stray current interference detection and evaluation device according to claim 2, wherein: the polarization probe A (101), the polarization probe B (102) and the reference electrode (103) penetrate through a first cavity (502) of the protective shell (5), and the end parts of the polarization probe A, the polarization probe B and the reference electrode are electrically connected with the interface conversion unit; the first chamber (502) of the protective shell (5) is internally piled with molybdenum compound filling.
4. The pile-free stray current interference detection and evaluation device according to claim 1, wherein: the circuit board (6) is arranged in a second cavity (503) of the protective shell (5), the battery pack (7) is arranged in a third cavity (504) of the protective shell (5), and the circuit board (6) is electrically connected with the battery pack (7).
5. The pile-free stray current interference detection and evaluation device according to claim 1, wherein: the polarization probe A (101), the polarization probe B (102) and the reference electrode (103) are respectively and electrically connected with the electrode test circuit; the interface conversion unit is electrically connected with the electrode test circuit and the driving unit respectively.
6. The pile-free stray current interference detection and evaluation device according to claim 5, wherein: the polarization probe A (101) can be a self-corrosion test piece, the polarization probe B (102) can be a polarization test piece, and the reference electrode (103) can be a saturated copper sulfate reference electrode.
7. The pile-free stray current interference detection and evaluation device according to claim 1, wherein: the detection assembly (1) further comprises a cable (4), the cable (4) can be a zero-position cable, and the cable (4) is used for being welded with the tested pipeline (2).
8. The pile-free stray current interference detection and evaluation device according to claim 1, wherein: the circuit board (6) is electrically connected with the microprocessor and the communication element respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322359054.4U CN220820135U (en) | 2023-08-31 | 2023-08-31 | Pile-free stray current interference detection evaluation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322359054.4U CN220820135U (en) | 2023-08-31 | 2023-08-31 | Pile-free stray current interference detection evaluation device |
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| Publication Number | Publication Date |
|---|---|
| CN220820135U true CN220820135U (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322359054.4U Active CN220820135U (en) | 2023-08-31 | 2023-08-31 | Pile-free stray current interference detection evaluation device |
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| Country | Link |
|---|---|
| CN (1) | CN220820135U (en) |
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2023
- 2023-08-31 CN CN202322359054.4U patent/CN220820135U/en active Active
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