CN105758787A - Corrosion rate measuring device and measuring method - Google Patents

Corrosion rate measuring device and measuring method Download PDF

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Publication number
CN105758787A
CN105758787A CN201610270025.2A CN201610270025A CN105758787A CN 105758787 A CN105758787 A CN 105758787A CN 201610270025 A CN201610270025 A CN 201610270025A CN 105758787 A CN105758787 A CN 105758787A
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China
Prior art keywords
corrosion rate
data
matrix
test period
metal level
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Pending
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CN201610270025.2A
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Chinese (zh)
Inventor
孟晓波
廖永力
邹林
李锐海
陈晓
张巍
吴新桥
张贵峰
龚博
张曦
朱烨
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CSG Electric Power Research Institute
Power Grid Technology Research Center of China Southern Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
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Power Grid Technology Research Center of China Southern Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
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Application filed by Power Grid Technology Research Center of China Southern Power Grid Co Ltd, Research Institute of Southern Power Grid Co Ltd filed Critical Power Grid Technology Research Center of China Southern Power Grid Co Ltd
Priority to CN201610270025.2A priority Critical patent/CN105758787A/en
Publication of CN105758787A publication Critical patent/CN105758787A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/02Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/04Corrosion probes

Abstract

The invention discloses a corrosion rate measuring device and measuring method, and relates to the technical field of electrical equipment corrosion, and the technical problem that in the prior art, the corrosion rate of a metal component cannot be measured in real time is solved.The corrosion rate measuring device comprises at least one measuring probe and at least one ampere meter, and each measuring probe comprises a base body, an insulating layer and a metal layer, wherein the insulating layer is located on the base body, the metal layer is located on the insulating layer, the area of the insulating layer and the area of the metal layer are both smaller than that of the base body, a negative terminal of each ampere meter is connected with the corresponding base body, and a positive terminal of each ampere meter is connected with the corresponding metal layer; each base body is made of active metal or active metal alloy, and the metal layers are inert metal layers.The corrosion rate measuring device and measuring method are used for measuring the corrosion rate of the metal component in real time.

Description

A kind of corrosion rate measurement apparatus and measuring method
Technical field
The present invention relates to power equipment corrosion technology field, particularly relate to a kind of corrosion rate measurement apparatus and measuring method.
Background technology
Along with the high speed development of society, people are increasing to the demand of electric power, it is ensured that the promptness of power transmission and safety become more and more important.But for weather relatively humid region, the power equipments such as transformer station are in wet environment for a long time, and then make the hardware in power equipment can be subject in wet environment the corrosion of steam, thus causing that the performance of power equipment significantly declines, have a strong impact on promptness and the safety of power transmission.Accordingly, it would be desirable to monitor the corrosion rate of hardware in time, understand the extent of corrosion of hardware according to the corrosion rate of hardware, thus in time the hardware corroded being safeguarded or changing.
At present, mainly through using the metal lacing film of material identical with the hardware of required monitoring to carry out exposure test, carry out the corrosion rate to hardware to measure, it is exposed in the wet environment residing for hardware by metal lacing film, after 1~2 year, obtaining, by weight method, the quality that metal lacing film is corroded within the test period, thus obtaining the corrosion rate of metal lacing film, and then obtaining the corrosion rate of hardware.Although the corrosion rate of hardware can be recorded by said method, but the corrosion rate needs time of 1~2 year of hardware is measured by metal lacing film exposure test, and then the corrosion rate of hardware cannot be measured in real time, the extent of corrosion of hardware cannot be understood in time, it is impossible in time the hardware corroded safeguarded or change.
Summary of the invention
It is an object of the invention to provide a kind of corrosion rate measurement apparatus and measuring method, for measuring hardware corrosion rate within the test period in real time, contribute to understanding in time the extent of corrosion of hardware, in time the hardware corroded safeguarded or change.
For reaching above-mentioned purpose, the present invention provides a kind of corrosion rate measurement apparatus, adopts the following technical scheme that
This corrosion rate measurement apparatus includes at least one measuring probe and at least one ammeter, and described measuring probe includes matrix, insulating barrier and metal level;Wherein, described insulating barrier is positioned on described matrix, described metal level is positioned on described insulating barrier, described insulating barrier and the projection on the matrix of described metal level all fall within described matrix, the negative terminal of described ammeter is connected with described matrix, and the positive terminal of described ammeter is connected with described metal level;Described matrix is active metal or active metal alloy;Described metal level is inert metal layer.
nullThe invention provides a kind of corrosion rate measurement apparatus as above,The insulating barrier included due to measuring probe is positioned on matrix,Metal level is positioned on insulating barrier,And the projection that insulating barrier and metal level are on matrix all falls within matrix,Therefore,When using this corrosion rate measurement apparatus to carry out corrosion rate measurement,Attachment steam on the measurement probe can have contact with each other with matrix and metal level,Make matrix、Metal level and steam one electrochemical corrosion system of composition,And owing to matrix is active metal or active metal alloy,Metal level is inert metal layer,Therefore,Matrix can occur the anode reaction that oxygen uptake is corroded,Matrix loses a number of electronics,Metal level can occur cathode reaction,Metal level obtains a number of electronics,This allows for there is a number of electron transfer between matrix and metal level,Thus creating electric current,And then make by ammeter record between matrix and metal level produce all electric currents size after,Size according to all electric currents and the persistent period of each electric current,Calculate the quantity of electron transfer between test period endobasal-body and metal level,And the material in conjunction with matrix can extrapolate the quality being corroded at test period endobasal-body,Thus obtaining matrix corrosion rate within the test period,And then obtain the hardware needing monitoring corrosion rate within the test period according to matrix corrosion rate within the test period.Therefore, use above-mentioned corrosion rate measurement apparatus can measure hardware corrosion rate within the test period in real time, contribute to understanding in time the extent of corrosion of hardware, in time the hardware corroded safeguarded or change.
Present invention also offers a kind of corrosion rate measuring method, adopt the following technical scheme that
This corrosion rate measuring method uses above-mentioned corrosion rate measurement apparatus to carry out corrosion rate measurement, and this corrosion rate measuring method includes:
By described ammeter to the size measurement of all electric currents of generation between described matrix and described metal level;
Material according to current data and described matrix, obtains described matrix corrosion rate within the test period, and described current data includes the size of all electric currents of described ammeter measurement gained and the persistent period of each electric current;
The hardware needing monitoring corrosion rate within the test period is obtained according to described matrix corrosion rate within the test period.
The invention provides a kind of corrosion rate measuring method as above, owing to this corrosion rate measuring method employs above-mentioned corrosion rate measurement apparatus, therefore, with when above-mentioned corrosion rate measurement apparatus being applied in corrosion rate measurement process, there is identical beneficial effect when this corrosion rate measuring method being applied in corrosion rate measurement process, so place no longer repeats.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the first corrosion rate measurement apparatus in the embodiment of the present invention;
Fig. 2 be in the embodiment of the present invention Fig. 1 along the generalized section in AA ' direction;
Fig. 3 is the floor map of measuring probe in the embodiment of the present invention;
Fig. 4 is the structural representation of the second corrosion rate measurement apparatus in the embodiment of the present invention.
Description of reference numerals:
1 measuring probe, 11 matrixes, 12 insulating barriers, 13 metal levels, 2 ammeters,
3 data loggers, 4 Wireless Transmitters, 5 Data Analysis Platforms, 6 anemometers,
7 Hygrothermographs, 8 supply modules.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment one
The embodiment of the present invention provides a kind of corrosion rate measurement apparatus, as it is shown in figure 1, this corrosion rate measurement apparatus includes at least one measuring probe 1 and at least one ammeter 2, specifically, as in figure 2 it is shown, measuring probe 1 includes matrix 11, insulating barrier 12 and metal level 13;Wherein, insulating barrier 12 is positioned on matrix 11, and metal level 13 is positioned on insulating barrier 12, and insulating barrier 12 and the metal level 13 projection on matrix 11 all fall within matrix 11, the negative terminal of ammeter 2 is connected with matrix 11, and the positive terminal of ammeter 2 is connected with metal level 13;Matrix 11 is active metal or active metal alloy;Metal level 13 is inert metal layer.
Use the process that the corrosion rate of hardware is measured by above-mentioned corrosion rate measurement apparatus as follows:
First, by ammeter 2 to the size measurement of all electric currents of generation between matrix 11 and metal level 13;Then, material according to current data and matrix 11, obtain the matrix 11 corrosion rate within the test period, current data includes ammeter 2 and measures the size of all electric currents of gained and the persistent period of each electric current, specific as follows, the size of all electric currents recorded according to ammeter 2 and the persistent period of each electric current, it is thus achieved that in test period T, the quantity Q of the electronics of transfer between matrix 11 and metal level 13Wherein, IiFor the size of i-th electric current, tiFor the persistent period of i-th electric current, n is total number of electric current, further according to the material of the quantity Q of the electronics of transfer between matrix 11 and metal level 13 and matrix 11, it is thus achieved that the quality m being corroded of matrix 11, wherein,Q is the quantity of the electronics that every mole of matrix 11 loses in the process of being corroded, and M is the molal weight of matrix 11, according to the quality m being corroded of matrix 11 and test period T, it is thus achieved that the matrix 11 corrosion rate v in test period T, wherein,Finally, the hardware needing monitoring corrosion rate within the test period is obtained according to the matrix 11 corrosion rate within the test period, specific as follows, in conjunction with matrix 11, the concrete material of hardware needing monitoring and chemical property thereof, and according to the matrix 11 corrosion rate v in test period T, conversion obtains the hardware needing monitoring corrosion rate within the test period.
nullFrom the above,In the technical scheme of the present embodiment,Owing to insulating barrier 12 is positioned on matrix 11,Metal level 13 is positioned on insulating barrier 12,And insulating barrier 12 and the metal level 13 projection on matrix 11 all fall within matrix 11,Therefore,When using this corrosion rate measurement apparatus to carry out corrosion rate measurement,It is attached to the steam on measuring probe 1 to have contact with each other with matrix 11 and metal level 13,Make matrix 11、Metal level 13 and steam one electrochemical corrosion system of composition,And owing to matrix 11 is active metal or active metal alloy,Metal level 13 is inert metal layer,Therefore,Matrix 11 can occur the anode reaction that oxygen uptake is corroded,Matrix 11 loses a number of electronics,Metal level 13 can occur cathode reaction,Metal level 13 obtains a number of electronics,This allows for having between matrix 11 and metal level 13 a number of electron transfer,Thus creating electric current,And then make by ammeter 2 record between matrix 11 and metal level 13 produce all electric currents size after,Size according to all electric currents and the persistent period of each electric current,The quantity of the electron transfer between calculating test period endobasal-body 11 and metal level 13,And the material in conjunction with matrix 11 can extrapolate the quality being corroded at test period endobasal-body 11,Thus obtaining the matrix 11 corrosion rate within the test period,And then obtain the hardware needing monitoring corrosion rate within the test period according to the matrix 11 corrosion rate within the test period.Therefore, use above-mentioned corrosion rate measurement apparatus can measure hardware corrosion rate within the test period in real time, contribute to understanding in time the extent of corrosion of hardware, in time the hardware corroded safeguarded or change.
For the ease of skilled artisan understands that and implementing, below the embodiment of the present invention in conjunction with accompanying drawing, the concrete structure of measuring probe 1 is described in detail:
Exemplarily, in the embodiment of the present invention, preferred substrate 11 is the plain steel (such as Q235 plain steel, Q345 plain steel etc.) being readily available, and the material of metal level 13 is that be readily available and lower-cost inert metal silver, so that measuring probe 1 is less costly.
Exemplarily, insulating barrier 12 can adopt painting method to be formed on matrix 11, and similarly, metal level 13 can also adopt painting method to arrange on the insulating layer 12, and those skilled in the art can select according to practical situation, and the embodiment of the present invention is not defined.For the thickness of the thickness of insulating barrier 12 and metal level 13, those skilled in the art select also dependent on practical situation, and the embodiment of the present invention is not defined.
Alternatively, in measuring probe 1, the pattern of insulating barrier 12 and the pattern of metal level 13 can have multiple, and those skilled in the art can select according to practical situation, and the embodiment of the present invention is not defined.Exemplarily, the embodiment of the present invention provides the pattern of the following two kinds insulating barrier 12 and the pattern of metal level 13:
The first, as it is shown in figure 1, insulating barrier 12 includes multiple concentric and spaced first annular portion, metal level 13 includes multiple the second concentric and spaced ring part, second ring part and first annular portion one_to_one corresponding, each second ring part is connected with matrix 11 each through an ammeter 2.Now, each second ring part of metal level 13 by with its one to one an ammeter 2 be connected with matrix 11, or, all second ring parts of metal level 13 are connected with matrix 11 each through same ammeter 2.In the embodiment of the present invention preferably, all second ring parts of metal level 13 are connected with matrix 11 each through same ammeter 2, so that the simple in construction of corrosion rate measurement apparatus, cost is low.
Wherein, selection for the spacing size between two first annular portions of arbitrary neighborhood, can account for from following two aspect: on the one hand, in order to ensure that matrix 11 can fully and moisture, and electrochemical corrosion system can be collectively constituted with steam and metal level 13, it is desirable to the spacing between two first annular portions of arbitrary neighborhood can not be too small;On the other hand, in order to avoid matrix 11 and moisture area are excessive, cause that steam cannot contact with metal level 13 simultaneously, thus electrochemical corrosion system cannot be formed, and then causing the corrosion rate that cannot measure matrix, it is desirable to the spacing between two first annular portions of arbitrary neighborhood can not be excessive.Exemplarily, selecting the spacing between two first annular portions of arbitrary neighborhood in the embodiment of the present invention is 2nm~5nm.
The second, as it is shown on figure 3, insulating barrier 12 includes multiple the first spaced bar shaped portion, metal level 13 includes multiple the second spaced bar shaped portion, second bar shaped portion and the first bar shaped portion one_to_one corresponding, each second bar shaped portion is connected with matrix 11 each through an ammeter 2.Now, each second bar shaped portion of metal level 13 by with its one to one an ammeter 2 be connected with matrix 11, or, all second bar shaped portions of metal level 13 are connected with matrix 11 each through same ammeter 2.In the embodiment of the present invention preferably, all second bar shaped portions of metal level 13 are connected with matrix 11 each through same ammeter 2, so that the simple in construction of corrosion rate measurement apparatus, cost is low.
Wherein, selection for the spacing size between two the first bar shaped portions of arbitrary neighborhood, similar with the above-mentioned selection for the spacing size between two first annular portions of arbitrary neighborhood, exemplarily, selecting the spacing between two first annular portions of arbitrary neighborhood in the embodiment of the present invention is 2nm~5nm.
Additionally, compared with the pattern of the pattern of insulating barrier 12 as shown in Figure 3 and metal level 13, the pattern of insulating barrier 12 and the pattern of metal level 13 as shown in Figure 1 time, the connection line required when being connected with ammeter 2 of metal level 13 is relatively simple, therefore, the pattern of the preferably pattern of insulating barrier 12 as shown in Figure 1 and metal level 13 in the embodiment of the present invention.
You need to add is that, in the embodiment of the present invention, preferred ammeter 2 is microampere meter, captures Weak current to facilitate, and then improves the certainty of measurement of corrosion rate measurement apparatus.
In addition, as shown in Figure 4, above-mentioned corrosion rate measurement apparatus also includes data logger 3, Wireless Transmitter 4 and Data Analysis Platform 5, exemplarily, data logger 3 is real-time data record instrument, Wireless Transmitter 4 is 4G Wireless Transmitter, and ammeter 2, data logger 3 and Wireless Transmitter 4 are sequentially connected with;Wherein, data logger 3 is for record current data, this current data includes ammeter 2 in certain time and measures the size of all electric currents of gained and the persistent period of each electric current, Wireless Transmitter 5 is for by current data transmission to Data Analysis Platform 5, Data Analysis Platform 5 is for the material according to matrix 11 and current data, obtain the matrix 11 corrosion rate within the test period, and obtain the hardware needing monitoring corrosion rate within the test period according to the matrix 11 corrosion rate within the test period.Exemplarily, the method carrying out corrosion rate measurement by above-mentioned corrosion rate measurement apparatus specifically includes: by data logger 3 record current data;By Wireless Transmitter 4 by current data transmission to Data Analysis Platform 5;Data Analysis Platform 5 obtains the matrix 11 corrosion rate within the test period according to the material of current data and matrix 11, and obtains the hardware needing monitoring corrosion rate within the test period according to the matrix 11 corrosion rate within the test period.When carrying out corrosion rate measurement by above-mentioned corrosion rate measurement apparatus, it is achieved that corrosion rate measures the automatization of process, thus measurement error when eliminating manual operation, it is ensured that the accuracy of the corrosion rate recorded.
Alternatively, as shown in Figure 4, above-mentioned corrosion rate measurement apparatus also includes anemometer 6, and exemplarily, anemometer 6 is electronic wind meter, and anemometer 6 is connected with data logger 3;Wherein, data logger 3 is additionally operable to recording anemometer 6 and measures the air speed data of gained, Wireless Transmitter 4 is additionally operable to transmit to Data Analysis Platform 5 air speed data, and Data Analysis Platform 5 is additionally operable to air speed data and needs the relation between the hardware monitored corrosion rate within the test period to be analyzed.Exemplarily, the method carrying out corrosion rate measurement by above-mentioned corrosion rate measurement apparatus specifically also includes: measure wind speed by anemometer 6;The air speed data obtained is measured by data logger 5 recording anemometer 6;By Wireless Transmitter 4 by air speed data transmission to Data Analysis Platform 5;To air speed data and the relation between the hardware monitored corrosion rate within the test period is needed to be analyzed by Data Analysis Platform 5.When carrying out corrosion rate measurement by above-mentioned corrosion rate measurement apparatus, it is possible not only to measure the hardware obtaining needing monitoring corrosion rate within the test period in real time, the hardware needing monitoring corrosion rate within the test period and the time dependent relation of wind speed can also be drawn, thus facilitating the corrosion rate of those skilled in the art's hardware to needing monitoring to study further.
Alternatively, as shown in Figure 4, above-mentioned corrosion rate measurement apparatus also includes Hygrothermograph 7, and exemplarily, Hygrothermograph 7 is electronics Hygrothermograph, and Hygrothermograph 7 is connected with data logger 3;Wherein, data logger 3 is additionally operable to record Hygrothermograph 7 and measures temperature data and the humidity data of gained, Wireless Transmitter 4 is additionally operable to transmit to Data Analysis Platform 5 temperature data and humidity data, and the relation that Data Analysis Platform 5 is additionally operable between the corrosion rate within the test period of the hardware to the monitoring of temperature data, humidity data and needs is analyzed.Exemplarily, the method carrying out corrosion rate measurement by above-mentioned corrosion rate measurement apparatus specifically also includes: measure temperature and humidity by Hygrothermograph 7;Record Hygrothermograph 7 by data logger 3 and measure the temperature data and humidity data that obtain;By Wireless Transmitter 4, temperature data and humidity data are transmitted to Data Analysis Platform 5;Relation between hardware temperature data, humidity data and needs monitored by Data Analysis Platform 5 corrosion rate within the test period is analyzed.When carrying out corrosion rate measurement by above-mentioned corrosion rate measurement apparatus, it is possible not only to measure the hardware obtaining needing monitoring corrosion rate within the test period in real time, draw the hardware needing monitoring corrosion rate within the test period and the time dependent relation of wind speed, the hardware needing monitoring corrosion rate within the test period and temperature, the time dependent relation of humidity can also be drawn, thus facilitating the corrosion rate of those skilled in the art's hardware to needing monitoring to study further.
Alternatively, as shown in Figure 4, above-mentioned corrosion rate measurement apparatus also includes supply module 8, supply module 8 is connected with data logger 3 and Wireless Transmitter 4, for providing electric energy for data logger 3 and Wireless Transmitter 4, when above-mentioned corrosion rate measurement apparatus also includes anemometer 6, Hygrothermograph 7, supply module 8 is also connected with anemometer 6, Hygrothermograph 7 respectively, thus providing electric energy for anemometer 6 and Hygrothermograph 7.This supply module 8 can ensure that the continual measurement corrosion rate of this corrosion rate measurement apparatus.You need to add is that, supply module 8 can include solaode, wind-driven generator and lithium battery etc., and those skilled in the art can select according to practical situation, and the embodiment of the present invention is not defined.
Embodiment two
The embodiment of the present invention provides a kind of corrosion rate measuring method, uses the corrosion rate measurement apparatus in the embodiment of the present invention one to carry out corrosion rate measurement, and this corrosion rate measuring method includes:
Step S1, by ammeter between matrix and metal level produce all electric currents size measurement.
Step S2, material according to current data and matrix, obtain matrix corrosion rate within the test period, and current data includes ammeter and measures the size of all electric currents of gained and the persistent period of each electric current.
Exemplarily, the material according to current data and matrix, the concrete steps obtaining matrix corrosion rate within the test period include:
Size according to all electric currents and the persistent period of each electric current, it is thus achieved that in test period T, the quantity Q of the electronics of transfer between matrix and metal level,Wherein, IiFor the size of i-th electric current, tiFor the persistent period of i-th electric current, n is total number of electric current;
Material according to the quantity Q of electronics of transfer between matrix and metal level and matrix, it is thus achieved that the quality m being corroded of matrix, wherein,Q is the quantity of the electronics that every mole of matrix loses in the process of being corroded, and M is the molal weight of matrix;
The quality m being corroded according to matrix and test period T, it is thus achieved that matrix corrosion rate v in test period T, wherein,
Step S3, obtain the hardware needing monitoring corrosion rate within the test period according to matrix corrosion rate in test period T.Exemplarily, in conjunction with matrix, the concrete material of hardware needing monitoring and chemical property thereof, the matrix obtained corrosion rate within the test period is converted, the hardware needing monitoring corrosion rate within the test period can be obtained.
In the technical scheme of the present embodiment, when using above-mentioned corrosion rate measuring method to carry out corrosion rate measurement, owing to can be recorded the size of all electric currents produced between matrix and metal level by ammeter, and the persistent period according to the size of all electric currents and each electric current, the quantity of electron transfer between test period endobasal-body and metal level can be calculated, and the material in conjunction with matrix can extrapolate the quality being corroded at test period endobasal-body, thus obtaining the corrosion rate of the matrix corrosion rate within the test period, and then obtain the hardware needing monitoring corrosion rate within the test period according to matrix corrosion rate within the test period.Therefore, use above-mentioned corrosion rate measuring method can measure hardware corrosion rate within the test period in real time, contribute to understanding in time the extent of corrosion of hardware, in time the hardware corroded safeguarded or change.
Alternatively, above-mentioned corrosion rate measuring method also includes: by data logger record current data;By Wireless Transmitter by current data transmission to Data Analysis Platform;Data Analysis Platform obtains matrix corrosion rate within the test period according to the material of current data and matrix, and obtains the hardware needing monitoring corrosion rate within the test period according to matrix corrosion rate within the test period.When carrying out corrosion rate measurement by above-mentioned corrosion rate measuring method, it is achieved that corrosion rate measures the automatization of process, it is possible to eliminate measurement error during manual operation, it is ensured that the accuracy of the corrosion rate recorded.
Alternatively, above-mentioned corrosion rate measuring method also includes: measure wind speed by anemometer;By the air speed data that data logger recording anemometer measurement obtains;By Wireless Transmitter by air speed data transmission to Data Analysis Platform;To air speed data and the relation between the hardware monitored corrosion rate within the test period is needed to be analyzed by Data Analysis Platform.When carrying out corrosion rate measurement by above-mentioned corrosion rate measurement apparatus, be possible not only to measure in real time the hardware obtaining needing monitoring within the test period corrosion rate, the hardware needing monitoring corrosion rate within the test period and the time dependent relation of wind speed can also be drawn, thus facilitating the corrosion rate of those skilled in the art's hardware to needing monitoring to study further.
Alternatively, above-mentioned corrosion rate measuring method also includes: measure temperature and humidity by Hygrothermograph;The temperature data obtained by data logger record Hygrothermograph measurement and humidity data;By Wireless Transmitter, temperature data and humidity data are transmitted to Data Analysis Platform;Relation between hardware temperature data, humidity data and needs monitored by Data Analysis Platform corrosion rate within the test period is analyzed.When carrying out corrosion rate measurement by above-mentioned corrosion rate measurement apparatus, it is possible not only to measure the hardware obtaining needing monitoring corrosion rate within the test period in real time, draw the hardware needing monitoring corrosion rate within the test period and the time dependent relation of wind speed, the hardware needing monitoring corrosion rate within the test period and temperature, the time dependent relation of humidity can also be drawn, thus facilitating the corrosion rate of those skilled in the art's hardware to needing monitoring to study further.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.

Claims (13)

1. a corrosion rate measurement apparatus, it is characterised in that including at least one measuring probe and at least one ammeter, described measuring probe includes matrix, insulating barrier and metal level;Wherein, described insulating barrier is positioned on described matrix, described metal level is positioned on described insulating barrier, described insulating barrier and the projection on the matrix of described metal level all fall within described matrix, the negative terminal of described ammeter is connected with described matrix, and the positive terminal of described ammeter is connected with described metal level;Described matrix is active metal or active metal alloy;Described metal level is inert metal layer.
2. corrosion rate measurement apparatus according to claim 1, it is characterized in that, described insulating barrier includes multiple concentric and spaced first annular portion, described metal level includes multiple the second concentric and spaced ring part, described second ring part and described first annular portion one_to_one corresponding, each described second ring part is connected with described matrix each through a described ammeter.
3. corrosion rate measurement apparatus according to claim 2, it is characterised in that the spacing between two described first annular portions of arbitrary neighborhood is 2nm~5nm.
4. corrosion rate measurement apparatus according to claim 1, it is characterised in that described matrix is plain steel, described metal level is silver layer.
5. corrosion rate measurement apparatus according to claim 1, it is characterized in that, described corrosion rate measurement apparatus also includes data logger, Wireless Transmitter and Data Analysis Platform, and described ammeter, described data logger and described Wireless Transmitter are sequentially connected with;Wherein, described data logger is used for record current data, described current data includes the size of all electric currents of described ammeter measurement gained and the persistent period of each electric current, described Wireless Transmitter is for by described current data transmission to described Data Analysis Platform, described Data Analysis Platform is for the material according to described matrix and described current data, obtain described matrix corrosion rate within the test period, and obtain the hardware needing monitoring corrosion rate within the test period according to described matrix corrosion rate within the test period.
6. corrosion rate measurement apparatus according to claim 5, it is characterised in that described corrosion rate measurement apparatus also includes anemometer, and described anemometer is connected with described data logger;Wherein, described data logger is additionally operable to record described anemometer and measures the air speed data of gained, described Wireless Transmitter is additionally operable to the transmission of described air speed data to described Data Analysis Platform, and the relation that described Data Analysis Platform is additionally operable between the corrosion rate within the test period of the hardware to described air speed data and the monitoring of described needs is analyzed.
7. the corrosion rate measurement apparatus according to claim 5 or 6, it is characterised in that described corrosion rate measurement apparatus also includes Hygrothermograph, and described Hygrothermograph is connected with described data logger;Wherein, described data logger is additionally operable to record described Hygrothermograph and measures temperature data and the humidity data of gained, described Wireless Transmitter is additionally operable to transmit to described Data Analysis Platform described temperature data and described humidity data, and the relation that described Data Analysis Platform is additionally operable between the corrosion rate within the test period of the hardware to the monitoring of described temperature data, described humidity data and described needs is analyzed.
8. corrosion rate measurement apparatus according to claim 5, it is characterized in that, described corrosion rate measurement apparatus also includes supply module, and described supply module is connected with described data logger and described Wireless Transmitter, for providing electric energy for described data logger and described Wireless Transmitter.
9. a corrosion rate measuring method, it is characterised in that using the corrosion rate measurement apparatus as described in any one of claim 1~8 to carry out corrosion rate measurement, described corrosion rate measuring method includes:
By described ammeter to the size measurement of all electric currents of generation between described matrix and described metal level;
Material according to current data and described matrix, obtains described matrix corrosion rate within the test period, and described current data includes the size of all electric currents of described ammeter measurement gained and the persistent period of each electric current;
The hardware needing monitoring corrosion rate within the test period is obtained according to described matrix corrosion rate within the test period.
10. corrosion rate measuring method according to claim 9, it is characterised in that the described material according to current data and described matrix, the concrete steps obtaining described matrix corrosion rate within the test period include:
Size according to described all electric currents and the persistent period of each electric current, it is thus achieved that in test period T, the quantity Q of the electronics of transfer between described matrix and described metal level,Wherein, IiFor the size of i-th electric current, tiFor the persistent period of i-th electric current, n is total number of electric current;
Material according to the quantity Q of electronics of transfer between described matrix and described metal level and described matrix, it is thus achieved that the quality m being corroded of described matrix, wherein,Q is the quantity of the electronics that every mole of described matrix loses in the process of being corroded, and M is the molal weight of described matrix;
The quality m being corroded according to described matrix and test period T, it is thus achieved that described matrix corrosion rate v within experimental period, wherein,
11. corrosion rate measuring method according to claim 9, it is characterised in that described corrosion rate measuring method also includes:
By current data described in data logger record;
By Wireless Transmitter by described current data transmission to Data Analysis Platform;
Described Data Analysis Platform obtains described matrix corrosion rate within the test period according to the material of described current data and described matrix, and obtains the hardware needing monitoring corrosion rate within the test period according to described matrix corrosion rate within the test period.
12. corrosion rate measuring method according to claim 11, it is characterised in that described corrosion rate measuring method also includes:
Wind speed is measured by anemometer;
By the air speed data that Anemometer described in described data logger record measures;
By described Wireless Transmitter by described air speed data transmission to described Data Analysis Platform;
Relation between the hardware described air speed data and described needs monitored by described Data Analysis Platform corrosion rate within the test period is analyzed.
13. the corrosion rate measuring method according to claim 11 or 12, it is characterised in that described corrosion rate measuring method also includes:
Temperature and humidity is measured by Hygrothermograph;
The temperature data obtained by Hygrothermograph measurement described in described data logger record and humidity data;
By described Wireless Transmitter, described temperature data and humidity data are transmitted to described Data Analysis Platform;
Relation between the hardware described temperature data, described humidity data and described needs monitored by described Data Analysis Platform corrosion rate within the test period is analyzed.
CN201610270025.2A 2016-04-26 2016-04-26 Corrosion rate measuring device and measuring method Pending CN105758787A (en)

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Application publication date: 20160713