CN209816288U - Cathodic protection monitoring system - Google Patents

Cathodic protection monitoring system Download PDF

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Publication number
CN209816288U
CN209816288U CN201920561164.XU CN201920561164U CN209816288U CN 209816288 U CN209816288 U CN 209816288U CN 201920561164 U CN201920561164 U CN 201920561164U CN 209816288 U CN209816288 U CN 209816288U
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China
Prior art keywords
test piece
reference electrode
monitoring
corrosion
module
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CN201920561164.XU
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赵常英
贾光猛
朱加祥
卜明哲
郭亮
秦海燕
陈珏伶
李晔
藤彧
杨全毅
晁玲
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China Petroleum Engineering and Construction Corp North China Co
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China Petroleum Engineering and Construction Corp North China Co
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Abstract

The utility model discloses a cathodic protection monitoring system belongs to cathodic protection technical field. The cathodic protection monitoring system comprises a data acquisition instrument, a monitoring test piece, a corrosion test piece, a reference electrode, an insulating tube and a lifting mechanism. The monitoring test piece binding post, the corrosion test piece binding post and the reference electrode binding post of the data acquisition instrument are respectively and correspondingly and electrically connected with the monitoring test piece, the corrosion test piece and the reference electrode. The utility model discloses can gather the potential signal through the data acquisition appearance, carry out wireless transmission with the potential signal who gathers to avoid the operation personnel to face the test that the on-the-spot potential data of the target body goes on, reduced operation personnel's work load. In addition, because the buried monitoring test piece, the corrosion test piece and the reference electrode can be pulled out of the earth surface or buried along the insulating tube through the connected lifting mechanisms respectively, the excavation operation performed when the monitoring test piece, the corrosion test piece and the reference electrode are replaced is avoided, the replacement operation difficulty is reduced, and the replacement efficiency is improved.

Description

Cathodic protection monitoring system
Technical Field
The utility model relates to a cathodic protection technical field, in particular to cathodic protection monitoring system.
Background
The buried laying of the metal pipeline is widely applied to the transportation of petroleum, natural gas, drinking water and the like. The metal pipeline is buried underground for a long time, so that inevitable corrosion is caused, and perforation, breakage and the like of the metal pipeline are easily caused. After the metal pipeline leaks due to perforation or rupture, not only economic loss is caused, but also a plurality of safety problems are caused. Therefore, in the laying process of the metal pipeline, a cathodic protection monitoring system is arranged so as to test the corrosion condition of the metal pipeline through the cathodic protection monitoring system.
In the related art, the cathodic protection monitoring system includes a cathodic protection pile, a reference electrode, a monitoring test piece and a corrosion test piece, which are buried underground and connected with the cathodic protection pile. The operating personnel can be connected universal meter and the binding post of negative pole protection stake, the natural potential between test reference electrode and the corrosion test piece, the circular telegram electric potential between test reference electrode and the monitoring test piece under the metal pipeline circular telegram circumstances, the outage electric potential between test reference electrode and the monitoring test piece under the metal pipeline outage circumstances, and then confirm the corrosion conditions of metal pipeline through natural potential, circular telegram electric potential and outage electric potential.
However, when an operator tests the corrosion condition of the metal pipeline through the cathodic protection monitoring system, the junction box on the cathodic protection pile needs to be detached, and after the testing is completed, the junction box needs to be installed. This not only increases the workload, but also reduces the working efficiency. In addition, because reference electrode, monitoring test block need regularly carry out calibration or change, the operating personnel need regularly excavate cathodic protection monitoring system like this to take out buried reference electrode or monitoring test block, further increased operation intensity.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cathodic protection monitoring system can solve the current potential data efficiency of software testing low to and change the big problem of monitoring test block or reference electrode working strength. The technical scheme is as follows:
the utility model provides a cathodic protection monitoring system, which comprises a data acquisition instrument, a monitoring test piece, a corrosion test piece, a reference electrode, an insulating tube and a lifting mechanism;
the monitoring test piece binding post, the corrosion test piece binding post and the reference electrode binding post of the data acquisition instrument are respectively and correspondingly electrically connected with the monitoring test piece, the corrosion test piece and the reference electrode, the testing binding post of the data acquisition instrument is also used for being electrically connected with a target body, and the target body is a buried metal pipeline or a buried metal tank bottom of potential data to be tested;
the first ends of the monitoring test piece, the corrosion test piece, the reference electrode and the insulating tube are all buried, and the monitoring test piece, the corrosion test piece and the reference electrode are respectively and correspondingly and mechanically connected with one lifting mechanism;
the data acquisition instrument is used for acquiring a potential signal of the target body and wirelessly transmitting the acquired potential signal.
Optionally, the data acquisition instrument includes an acquisition module, a communication module, a control module and a power module;
the monitoring test piece wiring terminal, the corrosion test piece wiring terminal and the reference electrode wiring terminal of the acquisition module are respectively and correspondingly electrically connected with the monitoring test piece, the corrosion test piece and the reference electrode, the testing wiring terminal of the acquisition module is also used for being electrically connected with the target body, the output end of the acquisition module is electrically connected with the input end of the communication module, the control end of the control module is electrically connected with the control end of the acquisition module, and the power module is respectively and electrically connected with the power end of the acquisition module, the power end of the communication module and the power end of the control module;
the acquisition module is used for acquiring the potential data and transmitting the acquired potential data to the communication module, the communication module is used for wirelessly transmitting the potential data, and the control module is used for controlling the acquisition module to acquire the potential data.
Optionally, the data acquisition instrument further comprises a storage module, and the storage module is connected in series between the output end of the acquisition module and the input end of the communication module.
Optionally, the communication module is a router.
Optionally, the cathodic protection monitoring system comprises a junction box, wherein the junction box comprises an insulating plate and a first conducting strip, a second conducting strip, a third conducting strip and a fourth conducting strip which are fixed on the insulating plate;
the first conducting strip is electrically connected with a monitoring test piece binding post of the data acquisition instrument and between monitoring test pieces, the second conducting strip is electrically connected with a corrosion test piece binding post of the data acquisition instrument and between corrosion test pieces, the third conducting strip is electrically connected with a reference electrode binding post of the data acquisition instrument and between reference electrodes, one end of the fourth conducting strip is electrically connected with a testing binding post of the data acquisition instrument, and the other end of the fourth conducting strip is used for being electrically connected with a target body.
Optionally, the first conductive sheet, the second conductive sheet, the third conductive sheet and the fourth conductive sheet are all copper sheets.
Optionally, the lifting mechanism is a lifting rod.
Optionally, the lifting mechanism comprises a lifting rope and a thrust rod;
the monitoring test block the corrosion test block with correspond mechanical connection one respectively on the reference electrode the lifting rope, with the lifting rope that the monitoring test block is connected, with the lifting rope that the corrosion test block is connected and with the lifting rope that the reference electrode is connected is used for corresponding respectively the monitoring test block the corrosion test block with the reference electrode is followed the insulating tube pulls out the earth's surface, the distance rod is used for promoting respectively under the exogenic action the monitoring test block the corrosion test block with the reference electrode is followed the insulating tube buries ground.
Optionally, the monitoring test piece, the corrosion test piece and the reference electrode are located on the same straight line, and the reference electrode is located between the monitoring test piece and the corrosion test piece.
Optionally, the cathodic protection monitoring system further comprises a bracket, and the data collector is fixed on the bracket.
The utility model provides a technical scheme's beneficial effect includes at least:
the utility model discloses can gather the potential signal through the data acquisition appearance, carry out wireless transmission with the potential signal who gathers to can avoid the operation personnel to face the current potential data of scene to the target body and test, reduce operation personnel's work load, improve the efficiency of software testing of potential data. In addition, because the buried monitoring test piece, the corrosion test piece and the reference electrode can be pulled out of the earth surface or buried along the insulating tube through the connected lifting mechanisms respectively, the excavation operation performed when the monitoring test piece, the corrosion test piece and the reference electrode are replaced is avoided, the replacement operation difficulty is reduced, and the replacement efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cathodic protection monitoring system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another cathodic protection monitoring system provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another cathodic protection monitoring system according to an embodiment of the present invention.
Reference numerals:
1: a data acquisition instrument; 11: an acquisition module; 12: a communication module; 13: a control module; 14: a power supply module; 15: a storage module; 2: monitoring the test piece; 3: a corrosion test piece; 4: a reference electrode; 5: an insulating tube; 6: a lifting mechanism; 61: lifting a pull rod; 62: lifting a rope; 63: a thrust rod; 7: a junction box; 8: a support; 9: a target body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 illustrates a schematic structural diagram of a cathodic protection monitoring system according to an embodiment of the present invention. As shown in fig. 1, the cathodic protection monitoring system includes a data acquisition instrument 1, a monitoring test piece 2, a corrosion test piece 3, a reference electrode 4, an insulating tube 5 and a pulling mechanism 6. Monitoring test block terminal, corrosion test block terminal and reference electrode terminal of data acquisition instrument 1 correspond the electricity with monitoring test block 2, corrosion test block 3 and reference electrode 4 respectively and are connected, and data acquisition instrument 1's test terminal still is used for being connected with target body 9 electricity, and target body 9 is buried metal pipeline or buried metal tank bottom of the awaiting measuring current potential data. The first ends of the monitoring test piece 2, the corrosion test piece 3, the reference electrode 4 and the insulating tube 5 are all buried, and the monitoring test piece 2, the corrosion test piece 3 and the reference electrode 4 are respectively and mechanically connected with a lifting mechanism 6.
The lifting mechanism 6 connected with the monitoring test piece 2, the lifting mechanism 6 connected with the corrosion test piece 3 and the lifting mechanism 6 connected with the reference electrode 4 are respectively used for pulling the corresponding monitoring test piece 2, the corresponding corrosion test piece 3 and the corresponding reference electrode 4 out of the ground surface or burying the monitoring test piece, the corresponding corrosion test piece and the corresponding reference electrode 4 along the insulating tube 5. The data acquisition instrument 1 is used for acquiring potential signals of the target body 9 and wirelessly transmitting the acquired potential signals.
The embodiment of the utility model provides an in, because data acquisition instrument 1 can be used for gathering the current potential signal, carry out wireless transmission with the current potential signal who gathers, consequently, after being connected data acquisition instrument 1's test terminal and target body 9 electricity, data acquisition instrument 1 is through monitoring test block 2, the current potential data that corrosion test block 3 and reference electrode 4 test obtained, carry out wireless transmission to the current potential data who gathers, thereby avoid the operation personnel to face the current potential data of on-the-spot target body 9 and test, the work load of operation personnel has been reduced, the efficiency of testing of current potential data has been improved. In addition, because the buried monitoring test piece 2, the corrosion test piece 3 and the reference electrode 4 can be pulled out of the earth surface or buried underground along the insulating tube 5 through the respectively connected pulling mechanism 6, the excavation operation performed when the monitoring test piece 2, the corrosion test piece 3 or the reference electrode 4 is replaced is avoided, the replacement operation difficulty is reduced, and the replacement efficiency is improved.
Wherein, reference electrode 4 can be for the long-term effect of single pottery type bury ground copper/copper sulfate reference electrode, two super long-term effects of pottery type bury ground copper/copper sulfate reference electrode or the long-term effect of resistance to compression type bury ground copper/copper sulfate reference electrode etc. certainly, can also be other reference electrodes, the embodiment of the utility model provides a do not limit to this.
The potential data may include, among others, the power-on potential, the power-off potential, and the natural potential of the target body 9. The specific mode of the test to obtain the potential data can be, obtain natural potential through the test of corrosion test block 3 and reference electrode 4, when target body 9 circular telegram, 1 control monitoring test block terminal of data acquisition instrument switches on with test terminal, 2 circular telegrams of monitoring test block of being connected with monitoring test block terminal electricity this moment, can obtain circular telegram potential through the test of monitoring test block 2 and reference electrode 4 like this, or 1 control monitoring test block terminal of data acquisition instrument and test terminal disconnection, 2 circular telegrams of monitoring test block of being connected with monitoring test block terminal electricity this moment, can obtain outage potential through the test of monitoring test block 2 and reference electrode 4 like this.
Because the effective time point of test outage potential can be for 0.2 second ~ 0.4 second after the outage, consequently, length can be located between 0.2 second ~ 0.5 second when the outage of the target body 9, of course, length also can be greater than 0.5 second when the outage of the target body 9, as long as can test obtain the outage potential can, the embodiment of the utility model provides a do not restrict this. In the embodiment of the utility model provides an in, the equipment of 9 circular telegrams for the target body can be potentiostat.
Wherein, the monitoring test piece 2, the corrosion test piece 3 and the reference electrode 4 can be located on the same straight line, and the reference electrode 4 is located between the monitoring test piece 2 and the corrosion test piece 3. Of course, monitoring test block 2, corrosion test block 3 and reference electrode 4 also can set up according to the ring, as long as the distance between monitoring test block 2, corrosion test block 3 and the reference electrode 4 is enough little can, the embodiment of the utility model provides a do not limit to this.
As shown in fig. 1, the cathodic protection monitoring system may further include a bracket 8, so that the data acquisition instrument 1 may be fixed on the bracket 8, thereby preventing rainwater from entering the data acquisition instrument 1 and damaging the data acquisition instrument 1. The data acquisition instrument 1 can be an explosion-proof intelligent potential acquisition device, and can also be other acquisition devices.
It should be noted that, the connecting line for realizing electrical connection in the embodiment of the present invention may be a cable, and certainly may be other wires.
The embodiment of the utility model provides an in, monitor coupon 2, it has one to carry pulling mechanism 6 to correspond mechanical connection on corrosion coupon 3 and the reference electrode 4 respectively, that is, cathodic protection monitoring system can include first pulling mechanism 6, second pulling mechanism 6 and third pulling mechanism, first pulling mechanism 6 and monitor coupon 2 mechanical connection, second pulling mechanism 6 and 3 mechanical connections of corrosion coupon, third pulling mechanism 6 and reference electrode 4 mechanical connection, so that can realize carrying of monitor coupon 2 through first pulling mechanism 6 and carry or bury ground, carry through the second pulling mechanism 6 and realize carrying of corrosion coupon 3 or bury ground, carry through the third pulling mechanism 6 and realize carrying of reference electrode 4 and carry or bury ground.
The first pulling mechanism 6 and the monitoring test piece 2, the second pulling mechanism 6 and the corrosion test piece 3, and the third pulling mechanism 6 and the reference electrode 4 can be connected in an insulating manner, so that the potential data obtained by testing can be prevented from being influenced when the potential data are tested. For example, the first pulling mechanism 6, the second pulling mechanism 6, and the third pulling mechanism 6 may be insulators. Of course, between first mechanism 6 and the monitoring test block 2 of carrying, between second mechanism 6 and the corrosion test block 3 of carrying, and also can be connected through the insulator between third mechanism 6 of carrying and the reference electrode 4, the embodiment of the utility model provides a do not limit this.
It should be noted that, in the embodiment of the present invention, the cathodic protection monitoring system may only include one lifting mechanism 6, and thus, the monitoring test block 2, the corrosion test block 3 and the reference electrode 4 can be pulled out of the earth's surface or buried underground through this one lifting mechanism 6, and the embodiment of the present invention is not limited to this.
In the embodiment of the present invention, in a possible implementation manner, as shown in fig. 1, the insulating tube 5 is sleeved on the pulling mechanism 6 connected to the monitoring test piece 2, the pulling mechanism 6 connected to the corrosion test piece 3, and the pulling mechanism 6 connected to the reference electrode 4, that is, the insulating tube 5 is sleeved on the first pulling mechanism 6, the second pulling mechanism 6, and the third pulling mechanism 6 at the same time. Therefore, in the embodiment of the utility model provides an in, cathodic protection monitoring system includes an insulating tube 5, the regional monitoring test piece 2 that covers at the orthographic projection place of this insulating tube 5, the region at corrosion test piece 3 and reference electrode 4 place, the hollow setting of this insulating tube 5 to can realize carrying of monitoring test piece 2 or burying ground through first mechanism 6 of carrying along this insulating tube 5, carry and carry or bury ground of mechanism 6 realization corrosion test piece 3 through the second, carry and carry or bury ground of mechanism 6 realization reference electrode 4 through the third.
In the embodiment of the present invention, as shown in fig. 2, in a possible implementation manner, the lifting mechanism 6 is a lifting rod 61. In combination with the above description, the cathodic protection monitoring system may include a first lifting rod 61, a second lifting rod 61 and a third lifting rod 61, where the first lifting rod 61 is mechanically connected to the monitoring test block 2, the second lifting rod 61 is mechanically connected to the corrosion test block 3, and the third lifting rod 61 is mechanically connected to the reference electrode 4, and may respectively apply a pulling force to the first lifting rod 61, the second lifting rod 61 or the third lifting rod 61, so as to pull the monitoring test block 2, the corrosion test block 3 or the reference electrode 4 correspondingly connected out of the ground along the insulating tube 5, or may respectively apply a pushing force to the first lifting rod 61, the second lifting rod 61 or the third lifting rod 61 based on the rigidity of the first lifting rod 61, the second lifting rod 61 or the third lifting rod 61, so as to bury the monitoring test block 2, the corrosion test block 3 or the reference electrode 4 correspondingly connected along the insulating tube 5.
Wherein, first lifting rod 61, second lifting rod 61 and third lifting rod 61 all can be plastic rod or wooden pole etc. or first lifting rod 61, second lifting rod 61 and third lifting rod 61 all can be the metal pole that one end is fixed with the insulator, as long as can realize between first lifting rod 61 and the monitoring test block 2, between second lifting rod 61 and the corrosion test block 3 to and be insulating connection between third lifting rod 61 and the reference electrode 4 can, the embodiment of the utility model provides a do not limit to this.
Of course, in another possible implementation manner, as shown in fig. 3, the pulling mechanism 6 includes a pulling rope 62 and a thrust rod 63, the monitoring test piece 2, the corrosion test piece 3 and the reference electrode 4 are respectively and correspondingly connected with one pulling rope 62, the pulling rope 62 connected to the monitoring test piece 2, the pulling rope 62 connected to the corrosion test piece 3 and the pulling rope 62 connected to the reference electrode 4 are respectively used for pulling out the corresponding monitoring test piece 2, the corrosion test piece 3 and the reference electrode 4 from the ground surface along the insulating tube 5, and the thrust rod 63 is used for respectively pushing the monitoring test piece 2, the corrosion test piece 3 and the reference electrode 4 to be buried along the insulating tube 5 under the external force.
In combination with the above description, the cathodic protection monitoring system may include a first lifting rope 62, a second lifting rope 62 and a third lifting rope 62, where the first lifting rope 62 is mechanically connected to the monitoring strip 2, the second lifting rope 62 is mechanically connected to the corrosion test strip 3, and the third lifting rope 62 is mechanically connected to the reference electrode 4, and may respectively apply a pulling force to the first lifting rope 62, the second lifting rope 62 or the third lifting rope 62, so as to pull the monitoring strip 2, the corrosion test strip 3 or the reference electrode 4, which are correspondingly connected, out of the ground surface along the insulating tube 5. Or the monitoring test piece 2, the corrosion test piece 3 or the reference electrode 4 is driven by the thrust rod 63 under the action of external force to realize the burying along the insulating rod.
Wherein, first lifting rope 62, second lifting rope 62 and third lifting rope 62 all can be for plastics rope or nylon rope, as long as can realize between first lifting rope 62 and the monitoring test block 2, between second lifting rope 62 and the corrosion test block 3 to and be insulating between third lifting rope 62 and the reference electrode 4 be connected can, thrust rod 63 can be for metal pole or wooden pole etc. as long as thrust rod 63 has certain rigidity can, the embodiment of the utility model provides a do not injectd this.
The embodiment of the utility model provides an in, as shown in fig. 3, data acquisition instrument 1 can include collection module 11, communication module 12, control module 13 and power module 14, collection module 11's monitoring test block wiring end, corrosion test block wiring end and reference electrode wiring end respectively with monitoring test block 2, corrosion test block 3 and reference electrode 4 correspond the electricity and are connected, collection module 11's test wiring end still is used for being connected with target body 9 electricity, collection module 11's output is connected with communication module 12's input electricity, control module 13's control end is connected with collection module 11's control end electricity, power module 14 respectively with collection module 11's power end, communication module 12's power end, control module 13's power end electricity is connected.
The acquisition module 11 is used for acquiring potential data and transmitting the acquired potential data to the communication module 12, the communication module 12 is used for wirelessly transmitting the potential data, and the control module 13 is used for controlling the acquisition module 11 to acquire the potential data.
Based on the above arrangement, the testing terminal of the collection module 11 is electrically connected to the target 9, the power module 14 provides power for the collection module 11, the communication module 12 and the control module 13, when the target 9 is powered on, the control module 13 controls the monitoring strip terminal and the testing terminal of the collection module 11 to be conducted, at this time, the monitoring strip 2 electrically connected to the monitoring strip terminal is powered on, so that the collection module 11 can test the power-on potential through the monitoring strip 2 connected to the monitoring strip terminal and the reference electrode 4 connected to the reference electrode terminal, or the control module 13 controls the monitoring strip terminal and the testing terminal of the collection module 11 to be disconnected, at this time, the monitoring strip 2 electrically connected to the monitoring strip terminal is not powered on, so that the collection module 11 can test the power-off potential through the monitoring strip 2 connected to the monitoring strip terminal and the reference electrode 4 connected to the reference electrode terminal, the control module 13 controls the acquisition module 11 to test the natural potential through the corrosion test piece 3 connected with the terminal of the corrosion test piece and the reference electrode 4 connected with the terminal of the reference electrode, so as to obtain potential data including an energization potential, a power-off potential and the natural potential. The acquisition module 11 transmits the acquired potential data to the communication module 12, and after the communication module 12 receives the potential data transmitted by the acquisition module 11, the potential data is wirelessly transmitted, so that the potential data is prevented from being tested by an operator.
The acquisition module 11 may be a test structure similar to a multimeter, so as to test potential data. The communication module 12 may be a router, and the communication module 12 may implement transmission of the potential data through the zigbee protocol, and of course, may implement wireless transmission of the potential data through other protocols. The potentiostat supplying power to the target 9 may be electrically connected to the control terminal of the control module 13 to control the potentiostat to periodically supply power to the target 9 via the control module 13.
After acquiring the potential data, the acquisition module 11 may transmit the potential data through the communication module 12 in real time. Of course, after acquiring the potential data, the acquisition module 11 may also send the potential data through the communication module 12 at intervals of a preset duration, and at this time, as shown in fig. 3, the data acquisition instrument 1 may further include a storage module 15, where the storage module 15 is connected in series between the output end of the acquisition module 11 and the input end of the communication module 12. In this way, the potential data acquired by the acquisition module 11 can be temporarily stored in the storage module 15, and then when the time interval with the previous time of transmitting the potential data is preset, the recently acquired potential data stored in the storage module 15 is transmitted through the communication module 12, so that the energy consumption of the communication module 12 can be reduced.
In the embodiment of the present invention, as shown in fig. 2, the cathode protection monitoring system may further include a connection box 7, wherein the connection box 7 includes an insulating plate and a first conductive strip, a second conductive strip, a third conductive strip and a fourth conductive strip fixed on the insulating plate. The first conducting strip electricity is connected between data acquisition instrument 1's monitoring test block terminal and monitoring test block 2, and second conducting strip electricity is connected between data acquisition instrument 1's corrosion test block terminal and corrosion test block 3, and third conducting strip electricity is connected between data acquisition instrument 1's reference electrode terminal and reference electrode 4, and fourth conducting strip one end is connected with data acquisition instrument 1's test terminal electricity, and the other end of fourth conducting strip is used for being connected with target body 9 electricity.
Based on above-mentioned setting, connect the junction box 7 at the electricity between data acquisition instrument 1 and monitoring test block 2, corrosion test block 3 and reference electrode 4, can be convenient for the operation personnel to predict the electric potential test data through junction box 7 to confirm the area size of monitoring test block 2, the area size of corrosion test block 3 and the volume size of reference electrode 4 through the electric potential test data, avoid the operation personnel to the dismantlement of data acquisition instrument 1.
Wherein, first conducting strip, second conducting strip, third conducting strip and fourth conducting strip all can be the copper sheet, certainly, first conducting strip, second conducting strip, third conducting strip and fourth conducting strip also can be graphite rod etc. the embodiment of the utility model provides a do not restrict to this.
It should be noted that, the connecting line for realizing electrical connection in the embodiment of the present invention may be a cable, and certainly may be other wires.
The embodiment of the utility model provides an in, because the collection module that the data acquisition instrument includes can be used for gathering the potential signal, communication module including can be used for carrying out wireless transmission with the potential signal of gathering, consequently, after the test wiring end with collection module is connected with the target body electricity, gather the potential data through collection module under control module's control action, carry out real-time transmission with the potential data of gathering through communication module, perhaps transmit after long when predetermineeing, thereby avoid the operation personnel to face the on-the-spot potential data to the target body and test, the work load of operation personnel has been reduced, the efficiency of software testing of potential data has been improved. In addition, because the buried monitoring test piece, the corrosion test piece and the reference electrode can be pulled out of the earth surface or buried along the insulating tube through the connected lifting mechanisms respectively, the excavation operation performed when the monitoring test piece, the corrosion test piece and the reference electrode are replaced is avoided, the replacement operation difficulty is reduced, and the replacement efficiency is improved.
The above description is only illustrative of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The cathodic protection monitoring system is characterized by comprising a data acquisition instrument (1), a monitoring test piece (2), a corrosion test piece (3), a reference electrode (4), an insulating tube (5) and a lifting mechanism (6);
the monitoring test piece binding post, the corrosion test piece binding post and the reference electrode binding post of the data acquisition instrument (1) are respectively and correspondingly electrically connected with the monitoring test piece (2), the corrosion test piece (3) and the reference electrode (4), the testing binding post of the data acquisition instrument (1) is also used for being electrically connected with a target body, and the target body is a buried metal pipeline or a buried metal tank bottom of potential data to be tested;
the first ends of the monitoring test piece (2), the corrosion test piece (3), the reference electrode (4) and the insulating tube (5) are buried, and the monitoring test piece (2), the corrosion test piece (3) and the reference electrode (4) are respectively and mechanically connected with the lifting mechanism (6) correspondingly;
wherein, with the mechanism of pulling (6) is carried that monitoring test block (2) are connected, with the mechanism of pulling (6) is carried that corrosion test block (3) are connected and with the mechanism of pulling (6) is carried that reference electrode (4) are connected is used for corresponding respectively monitoring test block (2), corrosion test block (3) with reference electrode (4) are followed insulating tube (5) pull out the earth's surface or bury ground, data acquisition appearance (1) is used for gathering the potentiometric signal of target body, will gather potentiometric signal carries out wireless transmission.
2. The cathodic protection monitoring system according to claim 1, characterized in that the data acquisition instrument (1) comprises an acquisition module (11), a communication module (12), a control module (13) and a power module (14);
the monitoring test piece wiring terminal, the corrosion test piece wiring terminal and the reference electrode wiring terminal of the acquisition module (11) are correspondingly and electrically connected with the monitoring test piece (2), the corrosion test piece (3) and the reference electrode (4) respectively, the testing wiring terminal of the acquisition module (11) is also used for being electrically connected with the target body, the output end of the acquisition module (11) is electrically connected with the input end of the communication module (12), the control end of the control module (13) is electrically connected with the control end of the acquisition module (11), and the power module (14) is electrically connected with the power end of the acquisition module (11), the power end of the communication module (12) and the power end of the control module (13) respectively;
the acquisition module (11) is used for acquiring the potential data and transmitting the acquired potential data to the communication module (12), the communication module (12) is used for wirelessly transmitting the potential data, and the control module (13) is used for controlling the acquisition module (11) to acquire the potential data.
3. The cathodic protection monitoring system according to claim 2, characterized in that the data acquisition instrument (1) further comprises a memory module (15), the memory module (15) being connected in series between the output of the acquisition module (11) and the input of the communication module (12).
4. The cathodic protection monitoring system of claim 2, wherein the communication module (12) is a router.
5. The cathodic protection monitoring system of claim 1, comprising a junction box (7), the junction box (7) comprising an insulating plate and a first, second, third, and fourth conductive sheets affixed to the insulating plate;
the first conducting strip is electrically connected with a monitoring test piece binding post of the data acquisition instrument (1) and between monitoring test pieces (2), the second conducting strip is electrically connected with a corrosion test piece binding post of the data acquisition instrument (1) and between corrosion test pieces (3), the third conducting strip is electrically connected with a reference electrode binding post of the data acquisition instrument (1) and between reference electrodes (4), one end of the fourth conducting strip is electrically connected with a testing binding post of the data acquisition instrument (1), and the other end of the fourth conducting strip is used for being electrically connected with a target body.
6. The cathodic protection monitoring system of claim 5, wherein the first conductive sheet, the second conductive sheet, the third conductive sheet, and the fourth conductive sheet are copper sheets.
7. The cathodic protection monitoring system according to claim 1, wherein the lifting mechanism (6) is a lifting bar (61).
8. The cathodic protection monitoring system of claim 1, wherein the lifting mechanism (6) comprises a lifting rope (62) and a thrust rod (63);
monitoring test block (2), corrosion coupon (3) with correspond mechanical connection one on reference electrode (4) respectively lifting rope (62), with lifting rope (62) that monitoring test block (2) are connected, with lifting rope (62) that corrosion coupon (3) are connected and with lifting rope (62) that reference electrode (4) are connected are used for corresponding respectively monitoring test block (2), corrosion coupon (3) with reference electrode (4) are followed the earth's surface is pulled out in insulating tube (5), thrust rod (63) are used for promoting respectively under the exogenic action monitoring test block (2), corrosion coupon (3) with reference electrode (4) are followed insulating tube (5) bury ground.
9. The cathodic protection monitoring system according to claim 1, wherein the monitoring strip (2), the corrosion strip (3) and the reference electrode (4) are located on the same line, and the reference electrode (4) is located between the monitoring strip (2) and the corrosion strip (3).
10. The cathodic protection monitoring system according to claim 1, further comprising a bracket (8), wherein the data collector (1) is fixed to the bracket (8).
CN201920561164.XU 2019-04-23 2019-04-23 Cathodic protection monitoring system Active CN209816288U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111575716A (en) * 2020-05-09 2020-08-25 中核武汉核电运行技术股份有限公司 Nuclear power plant buried pipeline cathodic protection effectiveness monitoring system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111575716A (en) * 2020-05-09 2020-08-25 中核武汉核电运行技术股份有限公司 Nuclear power plant buried pipeline cathodic protection effectiveness monitoring system

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