CN107727564A - The electrochemical testing device of metal microbiologic(al) corrosion under current system - Google Patents
The electrochemical testing device of metal microbiologic(al) corrosion under current system Download PDFInfo
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- CN107727564A CN107727564A CN201710999636.5A CN201710999636A CN107727564A CN 107727564 A CN107727564 A CN 107727564A CN 201710999636 A CN201710999636 A CN 201710999636A CN 107727564 A CN107727564 A CN 107727564A
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- 238000005260 corrosion Methods 0.000 title claims abstract description 58
- 230000007797 corrosion Effects 0.000 title claims abstract description 58
- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 title claims abstract description 43
- 230000002906 microbiologic effect Effects 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000004809 Teflon Substances 0.000 claims abstract description 24
- 229920006362 Teflon® Polymers 0.000 claims abstract description 24
- 239000003814 drug Substances 0.000 claims abstract description 24
- 239000007769 metal material Substances 0.000 claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 16
- 244000005700 microbiome Species 0.000 claims abstract description 11
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 8
- 229940079593 drug Drugs 0.000 claims abstract 3
- 238000000034 method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 10
- 238000011160 research Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000005343 cylinder glass Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 238000009395 breeding Methods 0.000 claims description 3
- 230000001488 breeding effect Effects 0.000 claims description 3
- 230000005518 electrochemistry Effects 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000000116 mitigating effect Effects 0.000 claims description 2
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 238000006056 electrooxidation reaction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000000645 desinfectant Substances 0.000 description 3
- 238000000840 electrochemical analysis Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002848 electrochemical method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 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
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 244000039328 opportunistic pathogen Species 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
-
- 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
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention belongs to electrochemical metal corrosion test field,To solve not making in the prior art to assemble growth in metal surface in the microorganism short time and the problems such as real-time electrochemical corrosion measures can not be carried out to metal material under current system,The step of making special working electrode and cost are saved simultaneously,Strengthen practicality,The present invention,The electrochemical testing device of metal microbiologic(al) corrosion under current system,Including cylindrical glass cavity,Upper end teflon seal lid,Lower end teflon seal lid,Reference electrode,Salt bridge,Auxiliary electrode,Platinized platinum,Medicine feeding hole,Thief hole,Working electrode,Working electrode contact hole,Working electrode contacts,Copper coin piece,Screw,Water inlet,Delivery port,Cylindrical glass cavity is apparatus main body,Cavity upper and lower ends are teflon seal lid,Upper end is provided with reference electrode,Auxiliary electrode,Medicine feeding hole and thief hole,Lower end is provided with working electrode.Present invention is mainly applied to electrochemical metal corrosion test occasion.
Description
Technical field
It is real available for metal microbiologic(al) corrosion process under current system the invention belongs to electrochemical metal corrosion test field
When electrochemical monitoring.Specifically, it is the electrochemical testing device that is related to metal microbiologic(al) corrosion under a kind of current system.
Background technology
The in-service water supply line in China current more than 90% is metallic conduit, and Metal pipeline corrosion is to cause pipe network model to lose
One of major reason of effect, wherein there are about 20% is as caused by the effect of microorganism.Electrochemical test method is quick due to its
Continuously, Metal pipeline corrosion experimental study can be widely used in the advantages that in-situ monitoring, can using electrochemical analysis techniques
More corrosion data and the growing state of microorganism are obtained exactly comprehensively.Existing electrochemical monitoring device still can not be to flowing
The microbiologic(al) corrosion of metal material carries out real-time electrochemical measurement under system, limits electrochemical test method in metal microorganism
The application of corrosion field.
The content of the invention
For overcome the deficiencies in the prior art, the present invention is directed to propose under a kind of current system metal microbiologic(al) corrosion electrification
Learn test device.Solution can not make to assemble growth in metal surface in the microorganism short time in the prior art and can not be to flowing
Metal material carries out the problems such as real-time electrochemical corrosion measurement under system；In addition, the working electrode of the device can be used directly
The metal material test piece studied, the step of making special working electrode and cost are eliminated, enhance the practicality of the device.
Therefore, the technical solution adopted by the present invention is, the electrochemical testing device of metal microbiologic(al) corrosion under current system, including cylinder
Glass cavity, upper end teflon seal lid, lower end teflon seal lid, reference electrode, salt bridge, auxiliary electrode, platinum
Piece, medicine feeding hole, thief hole, working electrode, working electrode contact hole, working electrode contacts, copper coin piece, screw, water inlet, water outlet
Mouthful, cylindrical glass cavity is apparatus main body, and cavity upper and lower ends are teflon seal lid, upper end be provided with reference electrode,
Auxiliary electrode, medicine feeding hole and thief hole, lower end are provided with working electrode, working electrode contact hole and working electrode contacts, water inlet with
Delivery port is located at cylindrical glass cavity sidewalls.
In reference electrode insertion salt bridge, bottom is relative with working electrode, and working electrode is metal material test piece, auxiliary electrode
Loop is formed with working electrode, reference electrode is used for measuring the electrode potential of working electrode；In addition, by determine working electrode and
Electric current between auxiliary electrode, make the electrochemical profiles of description working electrode property.
Cylindrical glass cavity upper end teflon seal is covered with medicine feeding hole, outwards winding dosing port lid during dosing, utilizes pin
Cylinder squeezes into medicament, reduces the entrance of air, reduces the disturbance of the operation to device system such as uncap.
Cylindrical glass cavity upper end teflon seal is covered with thief hole, and corrosive medium is sampled convenience and water
Quality detection, so as to preferably analyze the process and mechanism of metal microbiologic(al) corrosion in current system.
Cylindrical glass cavity sidewalls are provided with water inlet and delivery port, and water inlet has certain distance away from bottom working electrode, and
And bottom of device is circular arc slope, for mitigating souring of the corrosive medium to working electrode, is advantageous to microorganism and is working
Electrode surface growth and breeding.
Working electrode is directly used as using metal material test piece, metal material test piece is placed in working electrode contact hole and work electricity
Between the contact of pole.Working electrode contacts form by polytetrafluoroethylene (PTFE) lid and with screw copper coin piece, by turning screw by work
The copper coin piece made on electrode contacts jacks up, and is allowed to combine closely with working electrode, is convenient for the corrosion prison of various metals material
Survey.
By side wall water inlet and the delivery port access flowing circulatory system, the corrosion electrochemistry prison under current system is realized
Survey.
The features of the present invention and beneficial effect are：
1st, the souring present invention alleviates corrosive medium to working electrode, is advantageous to microorganism in working electrode surface
Apposition growth, while the real-time electrochemical monitoring of metallic material corrosion under current system can be realized, be advantageous to preferably analysis gold
Belong to microbiologic(al) corrosion mechanism of the material under current system.
2nd, the present invention is to study metal material test piece directly as working electrode, with platinized platinum auxiliary electrode and reference electrode structure
Dynamic circulation system is accessed into three electrode measurement systems, and by importing and exporting, is realized to research metal material under current system
The real-time electrochemical measurement of microbiologic(al) corrosion process.
3rd, research metal material test piece is placed between working electrode contact hole and working electrode contacts by the present invention, by turning
Screw jacks up the copper coin piece on working electrode contacts, is allowed to combine closely with working electrode, effectively prevents corrosive medium from letting out
Leakage.
4th, the present invention is secured between working electrode (test piece of research metal material), platinized platinum auxiliary electrode and reference electrode
Relative position, it is convenient for repeated corrosion monitoring experiment.
5th, apparatus of the present invention upper end is provided with medicine feeding hole, squeezes into medicament by syringe during dosing, alleviates the operation pair such as uncap
The disturbance of device system, it is possible to achieve influence research of the medicament such as disinfectant to corrosion process.
6th, apparatus of the present invention upper end is provided with thief hole, is easy to be sampled corrosive medium detection, so as to preferably analyze
Flow Corrosion process and mechanism.
Brief description of the drawings：
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is top structure schematic diagram of the present invention；
Fig. 3 is polycrystalline substance schematic diagram of the present invention；
Fig. 4 is body cylindrical glass cavity structure schematic diagram of the present invention；
Fig. 5 is teflon seal lid structural representation in upper end of the present invention；
Fig. 6 is teflon seal lid structural representation in upper end of the present invention；
Fig. 7 is working electrode of the present invention and working electrode contact hole structural representation；
Fig. 8 is working electrode contacts structural representation of the present invention；
The mark of each part is as follows in accompanying drawing：1st, cylindrical glass cavity, 2, upper end teflon seal lid, 3, lower end are gathered
Tetrafluoroethene closure, 4, reference electrode, 5, salt bridge, 6, auxiliary electrode, 7, platinized platinum, 8, medicine feeding hole, 9, thief hole, 10, work
Electrode 11, working electrode contact hole, 12, working electrode contacts, 13, copper coin piece, 14, screw, 15, water inlet, 16, delivery port.
Embodiment
It is an object of the invention to provide a kind of electrochemical testing device of metal microbiologic(al) corrosion under current system.Solve
It can not make to assemble growth in metal surface in the microorganism short time in the prior art and can not be to metal material under current system
The problems such as carrying out real-time electrochemical corrosion measurement；In addition, the working electrode of the device can directly use studied metal material
Expect test piece, eliminate the step of making special working electrode and cost, enhance the practicality of the device.
The present invention solves its technical problem and is achieved through the following technical solutions：
The electrochemical testing device of metal microbiologic(al) corrosion under a kind of current system, including cylindrical glass cavity, upper end gather
Tetrafluoroethene closure, lower end teflon seal lid, reference electrode, salt bridge, auxiliary electrode, platinized platinum, medicine feeding hole, sampling
Hole, working electrode, working electrode contact hole, working electrode contacts, copper coin piece, screw, water inlet, delivery port.
The electrochemical testing device of metal microbiologic(al) corrosion under a kind of current system, main body are that a cylindrical glass is empty
Chamber, cavity upper and lower ends are teflon seal lid, and upper end is provided with reference electrode, auxiliary electrode, medicine feeding hole and thief hole,
Lower end is provided with working electrode, working electrode contact hole and working electrode contacts, and water inlet is located at cylindrical glass cavity side with delivery port
Wall.
The electrochemical testing device of metal microbiologic(al) corrosion under the current system, the device cylindrical glass cavity upper end are gathered
Tetrafluoroethene closure is provided with medicine feeding hole, outwards winding dosing port lid during dosing, squeezes into medicament using syringe, it is possible to reduce air enters
Enter, the disturbances of the operation to device system such as reduction is uncapped.
The electrochemical testing device of metal microbiologic(al) corrosion under the current system, the device cylindrical glass cavity upper end are gathered
Tetrafluoroethene closure is provided with thief hole, and corrosive medium is sampled convenience and water quality detection, so as to preferably analysis flowing
The process and mechanism of metal microbiologic(al) corrosion under system.
The electrochemical testing device of metal microbiologic(al) corrosion under the current system, the device cylindrical glass cavity sidewalls are set
There are water inlet and delivery port, water inlet has certain distance away from bottom working electrode, and bottom of device is circular arc slope, can be subtracted
Light corrosive medium is advantageous to microorganism in working electrode surface growth and breeding to the souring of working electrode.
The electrochemical testing device of metal microbiologic(al) corrosion under the current system, the device is directly using research metal material
Material test piece is used as working electrode, and research metal material test piece is placed between working electrode contact hole and working electrode contacts.
The electrochemical testing device of metal microbiologic(al) corrosion under the current system, the device working electrode contacts are by poly- four
PVF lid and with screw copper coin piece form, by turning screw, copper coin piece is combined closely with working electrode, prevent corruption
Lose dielectric leakage.Meanwhile the joint on copper coin piece can connect electrochemical workstation.
The electrochemical testing device of metal microbiologic(al) corrosion under the current system, the device is by side wall water inlet and goes out
The mouth of a river access flowing circulatory system, realizes the corrosion electrochemistry monitoring under current system.
The invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, the electrochemical testing device of metal microbiologic(al) corrosion includes under current system of the present invention：Cylindrical glass
Cavity 1, upper end teflon seal lid 2, lower end teflon seal lid 3, reference electrode 4, salt bridge 5, auxiliary electrode 6,
Platinized platinum 7, medicine feeding hole 8, thief hole 9, working electrode 10, working electrode 11, working electrode contacts 12, copper coin piece 13, screw 14,
Water inlet 15, delivery port 16.Via the guiding of the side wall water inlet 15 of cylindrical glass cavity 1 and delivery port 16, Flow Corrosion medium
By experimental provision, the screw 14 after working electrode contacts 12 is turned, the copper coin piece 13 on working electrode contacts 12 is jacked up,
It is allowed to combine closely with working electrode 10, reference electrode 4 is inserted in salt bridge 5, and bottom is relative with working electrode 10, auxiliary electrode 6
Cylindrical glass cavity 1 is inserted, electrochemical workstation is connected to by joint, the medicine feeding hole 8 of upper end teflon seal lid 2 can
Medicament is squeezed into by syringe, the thief hole 11 of upper end teflon seal lid 2 can be sampled by syringe.
Apparatus of the present invention are directly used as working electrode 10 using research metal material test piece, and research metal material test piece is placed in
Between working electrode contact hole 11 and working electrode contacts 12, by turning screw 14 by the copper coin piece on working electrode contacts 12
13 jack up, and are allowed to combine closely with working electrode 10, are convenient for the corrosion monitoring of various metals material.
Apparatus of the present invention are combined with electrochemical workstation, and three are formed with working electrode 10, reference electrode 4 and auxiliary electrode 6
Electrode system, working electrode 10 are studied metal material test pieces, and auxiliary electrode 6 forms loop, reference with working electrode 10
Electrode 4 is used for measuring the electrode potential of working electrode 10.In addition, by determining the electricity between working electrode 10 and auxiliary electrode 6
Stream, the electrochemical profiles of the description property of working electrode 10 can be made.
During experiment, corrosive medium is via the experimental provision that is directed through of water inlet 15 and delivery port 16, working electrode 10, ginseng
Electrochemical workstation is sent to by wire than the electric signal of electrode 4 and auxiliary electrode 6, and carried out by electro-chemical test software
Record and analysis.
Apparatus of the present invention upper end teflon seal lid 2 is provided with medicine feeding hole 8, squeezes into medicament by syringe during dosing, can
To study influence of the medicaments such as disinfectant to corrosion process.
Apparatus of the present invention upper end teflon seal lid 2 is provided with thief hole 9, is easy to be sampled corrosive medium and water
Quality detection, so as to obtain more data informations, preferably to analyze Flow Corrosion process and mechanism.
Here is an example of the present invention.
Embodiment 1
The present embodiment studies the corrosion mechanism that waterpipe is regenerated under disinfectant and microorganism coupling.Raw water high temperature is gone out
After bacterium, 10mL sulfate reducing bacterias bacterium solution (about 5 × 10 is added9It is individual), 0mg/L, 3mg/L, 6mg/L and 9mg/L times are added respectively
Sodium chlorate carries out corrosion experiment, each 15 days of experimental period.Spheroidal graphite cast-iron metal is inputted in test process in electrochemical workstation
The basic parameter such as material property and experiment condition；After OCP is stable, measuring method is selected to be measured for polarization curve, selection
Reference electrode is saturation Ag/AgCl reference electrodes, and setting interpotential interval is 0.5mV, initial potential with respect to OCP -0.1V,
Current potential is terminated with respect to OCP 0.1V, sweep speed 0.5mV/s.Dynamic potential scanning result is arranged, calculates corruption
Lose speed, the results showed that sulfate reducing bacteria can promote corrosion of metal, be in high corrosion speed early stage, with sulfate also
Opportunistic pathogen is bred in metal surface, and corrosion product accumulation, metal surface and solution contact surface are accumulated and gradually decreased, metal erosion by
Gradually it is suppressed.And after later stage corrosion rate is stable, the corrosion rate for adding sodium hypochlorite experimental group is secondary less than not adding
The corrosion rate of sodium chlorate experimental group.
Claims (7)
1. the electrochemical testing device of metal microbiologic(al) corrosion under a kind of current system, it is characterized in that, including cylindrical glass cavity,
Upper end teflon seal lid, lower end teflon seal lid, reference electrode, salt bridge, auxiliary electrode, platinized platinum, medicine feeding hole,
Thief hole, working electrode, working electrode contact hole, working electrode contacts, copper coin piece, screw, water inlet, delivery port, cylinder glass
Glass cavity is apparatus main body, and cavity upper and lower ends are teflon seal lid, upper end be provided with reference electrode, auxiliary electrode,
Medicine feeding hole and thief hole, lower end are provided with working electrode, working electrode contact hole and working electrode contacts, water inlet and are located at delivery port
Cylindrical glass cavity sidewalls.
2. the electrochemical testing device of metal microbiologic(al) corrosion under current system as claimed in claim 1, it is characterized in that, reference
In electrode insertion salt bridge, bottom is relative with working electrode, and working electrode is metal material test piece, auxiliary electrode and working electrode structure
Into loop, reference electrode is used for measuring the electrode potential of working electrode；In addition, by determining between working electrode and auxiliary electrode
Electric current, make description working electrode property electrochemical profiles.
3. the electrochemical testing device of metal microbiologic(al) corrosion under current system as claimed in claim 1, it is characterized in that, cylinder
Glass cavity upper end teflon seal is covered with medicine feeding hole, outwards winding dosing port lid during dosing, squeezes into medicament using syringe, subtract
The entrance of few air, reduce the disturbance of the operation to device system such as uncap.
4. the electrochemical testing device of metal microbiologic(al) corrosion under current system as claimed in claim 1, it is characterized in that, cylinder
Glass cavity upper end teflon seal is covered with thief hole, and corrosive medium is sampled convenience and water quality detection, so as to
Preferably analyze the process and mechanism of metal microbiologic(al) corrosion in current system.
5. the electrochemical testing device of metal microbiologic(al) corrosion under current system as claimed in claim 1, it is characterized in that, cylinder
Glass cavity sidewalls are provided with water inlet and delivery port, and water inlet has certain distance away from bottom working electrode, and bottom of device is
Circular arc slope, for mitigating souring of the corrosive medium to working electrode, be advantageous to microorganism and grown in working electrode surface
Breeding.
6. the electrochemical testing device of metal microbiologic(al) corrosion under current system as claimed in claim 1, it is characterized in that, directly
Working electrode is used as using research metal material test piece, research metal material test piece is placed in working electrode contact hole and touched with working electrode
Between point.Metal material test piece is used as working electrode, metal material test piece be placed in working electrode contact hole and working electrode contacts it
Between, working electrode contacts form by polytetrafluoroethylene (PTFE) lid and with screw copper coin piece, are touched working electrode by turning screw
Copper coin piece on point jacks up, and is allowed to combine closely with working electrode, is convenient for the corrosion monitoring of various metals material.
7. the electrochemical testing device of metal microbiologic(al) corrosion under current system as claimed in claim 1, it is characterized in that, pass through
Side wall water inlet and the delivery port access flowing circulatory system, realize the corrosion electrochemistry monitoring under current system.
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| CN201710999636.5A CN107727564A (en) | 2017-10-24 | 2017-10-24 | The electrochemical testing device of metal microbiologic(al) corrosion under current system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213256A (en) * | 2020-10-09 | 2021-01-12 | 西南石油大学 | Testing arrangement of bacterium to steel corrosion influence under oil gas pipeline cathodic polarization |
| CN112964628A (en) * | 2021-02-03 | 2021-06-15 | 中山大学 | Research method of microbial corrosion electron transfer mechanism and application thereof |
| CN115060771A (en) * | 2022-06-24 | 2022-09-16 | 武汉大学 | Device and method for monitoring growth state of circulating water metal microbial film and evaluating corrosion prevention effect |
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