CN108061704A - A kind of single electrode crossed array wire beam electrode system corroded under Test coverage object - Google Patents
A kind of single electrode crossed array wire beam electrode system corroded under Test coverage object Download PDFInfo
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- CN108061704A CN108061704A CN201711273280.3A CN201711273280A CN108061704A CN 108061704 A CN108061704 A CN 108061704A CN 201711273280 A CN201711273280 A CN 201711273280A CN 108061704 A CN108061704 A CN 108061704A
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000005260 corrosion Methods 0.000 claims abstract description 49
- 230000007797 corrosion Effects 0.000 claims abstract description 49
- 230000005518 electrochemistry Effects 0.000 claims abstract description 33
- 238000005259 measurement Methods 0.000 claims abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000007769 metal material Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 230000008021 deposition Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention relates to the single electrode crossed array wire beam electrode systems corroded under a kind of Test coverage object.Its technical solution is：The preformed hole of matched electrodes size is provided under dirt pond, single electrode crossed array wire beam electrode is installed in preformed hole, preconfigured fouling products is added in dirt pond, electrode is covered to certain depth, form surface covering, and pH meters, temperature sensor and dissolved oxygen sensor are installed in dirt pond, measures the acid-base value, temperature and dissolved oxygen amount of dirt, single electrode crossed array wire beam electrode is connected to corrosion tester by conducting wire and switch.Advantageous effect is：Auxiliary electrode, working electrode and reference electrode are divided into small test cell by the present invention, the corrosion electrochemistry information of each working electrode is measured in small test cell, significantly reduce has covering on surface, due to the corrosion electrochemistry information measurement error that electrode surface covering causes electrode working environment different and brings.
Description
Technical field
The present invention relates to a kind of field of electrochemical test, the single electrode corroded under more particularly to a kind of Test coverage object intersects
Array wire beam electrode system.
Background technology
The dirt deposition of metal material surface has vital influence, the object of dirt for metallic material corrosion behavior
Physicochemical property affects the electrochemical properties of metal material surface, mass transport process and surface shear forces, directly affects
The anode and cathode reaction process of metal material surface corrosion.Existing surface wire beam electrode is used to study the metal material under surface covering
When expecting corrosion behavior, reference electrode, working electrode, auxiliary electrode are individually placed in electrolyte, and standoff distance is larger, residing
Solution environmental and flow fields environment it is different, and when having covering on working electrode surface, cause each electrode in experimentation
Surface smut deposition difference, influences the accurate measurement of corrosion electrochemistry information.Wire beam electrode（Wire Beam
Electrode, WBE）As a kind of emerging electrochemical research technology, the local corrosion information of electrode surface can be obtained.Silk
Beam electrode surface can form many microelectrodes, when these minute metallic silks are coupled, it becomes possible to obtain monoblock electrode
On electrochemical parameter, when wire it is separated when, each wire represents a working electrode, at corresponding different position
Electrochemical parameter respectively measures each wire, it becomes possible to obtain the local corrosion information at different position.Ag/
AgCl reference electrodes have a wide range of applications, with good stability and longer service life, and auxiliary electrode material Ag has
Good chemical stability.Chinese document《Influence of the deposit to corrosion behavior in 20# carbon steel pipings》It describes and uses tow
Electrode testing device measure has uncoated lower metal surface local corrosion distribution characteristics, but its reference electrode divides with wire beam electrode
It does not place in the solution, the corrosion electrochemistry parameter of measure is influenced by corrosion product covering or deposit, is led
Cause the electrochemical parameter error that it is measured larger.
The content of the invention
The purpose of the present invention provides what is corroded under a kind of Test coverage object aiming at drawbacks described above existing in the prior art
Single electrode crossed array wire beam electrode system by single electrode crossed array wire beam electrode technology, more accurately obtains metal material
Expect that surface has the corrosion electrochemistry information in the case of covering.
The single electrode crossed array wire beam electrode system corroded under a kind of Test coverage object that the present invention mentions, technical side
Case is：Including corrosion electrochemistry parameter test device, single electrode crossed array wire beam electrode（4）, corrosion tester（8）, table
Face covering（7）, corrosion electrochemistry parameter test device is in dirt pond（1）Under be provided with matching single electrode crossed array tow electricity
Pole（4）The preformed hole of size（5）, in preformed hole（5）Middle installation single electrode crossed array wire beam electrode（4）, add in dirt pond
Enter preconfigured fouling products, covering electrode is to certain depth, in single electrode crossed array wire beam electrode（4）Upper surface forms table
Face covering（7）, and in dirt pond（1）Inside install pH meters（2）, temperature sensor（3）And dissolved oxygen sensor（6）, lead to
Cross pH meters（2）, temperature sensor（3）, dissolved oxygen sensor（6）Measure acid-base value, temperature and the dissolved oxygen amount of dirt, single electrode
Crossed array wire beam electrode（4）Corrosion tester is connected to by conducting wire and switch（8）.
Above-mentioned single electrode crossed array wire beam electrode（4）Including auxiliary electrode（9）, working electrode（10）And reference electrode
（11）, and wire beam electrode surface is distributed in by cross arrangement mode, it will intersect adjacent auxiliary electrode in the measurements（9）, work
Make electrode（10）And reference electrode（11）It is divided into multiple test rectangle units（12）, in test rectangle unit（12）Middle measurement is every
The corrosion electrochemistry information of a working electrode obtains entire after the Electrochemistry Information of each working electrode measured is integrated
The corrosion electrochemistry information on wire beam electrode surface.
Above-mentioned single electrode crossed array wire beam electrode（4）Including auxiliary electrode（9）, working electrode（10）And reference electrode
（11）, wherein, working electrode（10）, reference electrode（11）And auxiliary electrode（9）Each arrange in column, adjacent each row malposition of electrode
Wire beam electrode surface is arranged in, by the auxiliary electrode in equilateral triangle（9）, working electrode（10）And reference electrode（11）It is divided into
One triangle test cell（13）, in triangle test cell（13）The corrosion electrochemistry letter of the middle each working electrode of measurement
Breath obtains the corrosion electrochemistry on entire wire beam electrode surface after the Electrochemistry Information of each working electrode measured is integrated
Information.
The beneficial effects of the invention are as follows：The present invention is in cyclic corrosion test system, and more accurately test electrode surface has
There is the corrosion condition under covering, by the peculiar arrangement mode of single electrode crossed array wire beam electrode, by auxiliary electrode, work
Electrode and reference electrode cross arrangement are on wire beam electrode surface, by the adjacent auxiliary electrode in left and right, working electrode and reference electrode
Small test cell is divided into, the corrosion electrochemistry information of each working electrode, integral data are measured in small test cell
The corrosion electrochemistry information on entire wire beam electrode surface is obtained afterwards.Since each electrode distance is very in each small test cell
It is small, and be all located under surface covering, significantly reduce has covering on surface, since electrode surface covering is led
The corrosion electrochemistry information measurement error sent a telegraph pole working environment difference and brought.
Description of the drawings
Attached drawing 1 is corrosion electrochemistry parameter test device schematic diagram of the invention；
Attached drawing 2 is single electrode crossed array wire beam electrode rectangular arrangement pattern schematic diagram of the present invention；
Attached drawing 3 is the schematic diagram that covering is carried in Fig. 2；
Attached drawing 4 is single electrode crossed array wire beam electrode rounded projections arranged mode of the present invention and covering schematic diagram；
Attached drawing 5 is the schematic diagram that covering is carried in Fig. 4；
Attached drawing 6 is the side view and measuring system of single electrode crossed array wire beam electrode；
In upper figure：Dirt pond（1）, pH meters（2）, temperature sensor（3）, single electrode crossed array wire beam electrode（4）, it is reserved
Hole（5）, dissolved oxygen sensor（6）, surface covering（7）, corrosion tester（8）, auxiliary electrode（9）, working electrode（10）With
Reference electrode（11）, test rectangle unit（12）, triangle test cell（13）.
Specific embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it should be understood that preferred reality described herein
It applies example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1, referring to attached drawing 1, the single electrode crossed array silk that corrodes under a kind of Test coverage object that the present invention mentions
Beam electrode system, technical solution are：Including corrosion electrochemistry parameter test device, single electrode crossed array wire beam electrode（4）、
Corrosion tester（8）, surface covering（7）, corrosion electrochemistry parameter test device is in dirt pond（1）Under to be provided with matching single
Electrode crossing array wire beam electrode（4）The preformed hole of size（5）, in preformed hole（5）Middle installation single electrode crossed array tow electricity
Pole（4）, preconfigured fouling products is added in dirt pond, covering electrode is to certain depth, in single electrode crossed array tow
Electrode（4）Upper surface forms surface covering（7）, and in dirt pond（1）Inside install pH meters（2）, temperature sensor（3）
And dissolved oxygen sensor（6）, pass through pH meters（2）, temperature sensor（3）, dissolved oxygen sensor（6）The acid-base value of measure dirt,
Temperature and dissolved oxygen amount, single electrode crossed array wire beam electrode（4）Corrosion tester is connected to by conducting wire and switch（8）.
Referring to attached drawing 2-3, single electrode crossed array wire beam electrode（4）Including auxiliary electrode（9）, working electrode（10）And ginseng
Compare electrode（11）, and wire beam electrode surface is distributed in by cross arrangement mode, it will intersect adjacent auxiliary electrode in the measurements
（9）, working electrode（10）And reference electrode（11）It is divided into multiple test rectangle units（12）, in test rectangle unit（12）In
The corrosion electrochemistry information of each working electrode is measured, after the Electrochemistry Information of each working electrode measured is integrated
To the corrosion electrochemistry information on entire wire beam electrode surface.Due to each electrode distance very little in each small test cell, and all
Positioned at surface covering（7）Under, significantly reduce has covering on surface, since electrode surface covering causes electricity
The corrosion electrochemistry information measurement error that pole working environment is different and brings.
Referring to attached drawing 6, a kind of single electrode crossed array wire beam electrode for corrosion condition under test surfaces covering leads to
Injection epoxy is crossed to be sealed overall electrode.Each electrode is picked out by conducting wire, and switch is provided on conducting wire, passes through conducting wire
Switch is connected to corrosion tester（8）.
Embodiment 2, referring to attached drawing 4-5, the single electrode crossed array that corrodes under a kind of Test coverage object that the present invention mentions
Wire beam electrode system, single electrode crossed array wire beam electrode use rounded projections arranged mode and covering schematic diagram, and single electrode is handed over
Pitch array wire beam electrode（4）Including auxiliary electrode（9）, working electrode（10）And reference electrode（11）, wherein, working electrode
（10）, reference electrode（11）And auxiliary electrode（9）It each arranges in column, adjacent each row malposition of electrode is arranged in wire beam electrode table
Face, by the auxiliary electrode in equilateral triangle（9）, working electrode（10）And reference electrode（11）It is single to be divided into a triangle test
Member（13）, in triangle test cell（13）The corrosion electrochemistry information of the middle each working electrode of measurement, each will measured
The Electrochemistry Information of working electrode obtains the corrosion electrochemistry information on entire wire beam electrode surface after integrating.Due to each small
Each electrode distance very little in test cell, and it is all located at surface covering（7）Under, significantly reducing has covering principle on surface
Under condition, due to the corrosion electrochemistry information measurement error that electrode surface covering causes electrode working environment different and brings.
The above, is only the part preferred embodiment of the present invention, and any those skilled in the art may profit
Equivalent technical solution is changed or is revised as with the technical solution of above-mentioned elaboration.Therefore, technology according to the invention
Any simple modification or substitute equivalents that scheme is carried out, belong to the greatest extent the scope of protection of present invention.
Claims (3)
1. the single electrode crossed array wire beam electrode system corroded under a kind of Test coverage object, it is characterized in that：Including corrosion electrification
Learn parameter test device, single electrode crossed array wire beam electrode（4）, corrosion tester（8）, surface covering（7）, corrosion electricity
Chemical parameters test device is in dirt pond（1）Under be provided with matching single electrode crossed array wire beam electrode（4）The preformed hole of size
（5）, in preformed hole（5）Middle installation single electrode crossed array wire beam electrode（4）, preconfigured dirt is added in dirt pond
Object, covering electrode is to certain depth, in single electrode crossed array wire beam electrode（4）Upper surface forms surface covering（7）, and
In dirt pond（1）Inside install pH meters（2）, temperature sensor（3）And dissolved oxygen sensor（6）, pass through pH meters（2）, temperature
Spend sensor（3）, dissolved oxygen sensor（6）Measure acid-base value, temperature and the dissolved oxygen amount of dirt, single electrode crossed array wire beam electrode
（4）Corrosion tester is connected to by conducting wire and switch（8）.
2. the single electrode crossed array wire beam electrode system corroded under Test coverage object according to claim 1, feature
It is：The single electrode crossed array wire beam electrode（4）Including auxiliary electrode（9）, working electrode（10）And reference electrode（11）, and
Wire beam electrode surface is distributed in by cross arrangement mode, will intersect adjacent auxiliary electrode in the measurements（9）, working electrode
（10）And reference electrode（11）It is divided into multiple test rectangle units（12）, in test rectangle unit（12）The middle each work of measurement
The corrosion electrochemistry information of electrode obtains entire tow electricity after the Electrochemistry Information of each working electrode measured is integrated
The corrosion electrochemistry information on pole surface.
3. the single electrode crossed array wire beam electrode system corroded under Test coverage object according to claim 1, feature
It is：The single electrode crossed array wire beam electrode（4）Including auxiliary electrode（9）, working electrode（10）And reference electrode（11）,
In, working electrode（10）, reference electrode（11）And auxiliary electrode（9）It each arranges in column, adjacent each row malposition of electrode is arranged in
Wire beam electrode surface, by the auxiliary electrode in equilateral triangle（9）, working electrode（10）And reference electrode（11）It is divided into one three
Angular test cell（13）, in triangle test cell（13）The corrosion electrochemistry information of the middle each working electrode of measurement, will survey
The Electrochemistry Information of each working electrode obtained obtains the corrosion electrochemistry information on entire wire beam electrode surface after integrating.
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| CN201711273280.3A CN108061704A (en) | 2017-12-06 | 2017-12-06 | A kind of single electrode crossed array wire beam electrode system corroded under Test coverage object |
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| CN201711273280.3A CN108061704A (en) | 2017-12-06 | 2017-12-06 | A kind of single electrode crossed array wire beam electrode system corroded under Test coverage object |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110702599A (en) * | 2019-11-08 | 2020-01-17 | 大连理工大学 | Multi-electrode top corrosion monitoring sensor, top corrosion monitoring experiment system and monitoring method |
| CN112782256A (en) * | 2019-11-06 | 2021-05-11 | 中国石油化工股份有限公司 | Multi-parameter probe for corrosion monitoring and corrosion detection system |
| CN113281250A (en) * | 2021-04-13 | 2021-08-20 | 中国石油大学(华东) | Testing method of unit type array electrode system for testing under-deposit corrosion in flowing state |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112782256A (en) * | 2019-11-06 | 2021-05-11 | 中国石油化工股份有限公司 | Multi-parameter probe for corrosion monitoring and corrosion detection system |
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