CN108169117A - Electrochemical corrosion measurement device and its application method in a kind of four main tubes of boiler deoxygenation condition solution medium - Google Patents
Electrochemical corrosion measurement device and its application method in a kind of four main tubes of boiler deoxygenation condition solution medium Download PDFInfo
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- CN108169117A CN108169117A CN201810146725.XA CN201810146725A CN108169117A CN 108169117 A CN108169117 A CN 108169117A CN 201810146725 A CN201810146725 A CN 201810146725A CN 108169117 A CN108169117 A CN 108169117A
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- 238000005259 measurement Methods 0.000 title claims abstract description 44
- 238000006056 electrooxidation reaction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000006392 deoxygenation reaction Methods 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 claims abstract description 60
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 57
- 238000002848 electrochemical method Methods 0.000 claims abstract description 54
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 229920003023 plastic Polymers 0.000 claims abstract description 14
- 239000000243 solution Substances 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 230000005518 electrochemistry Effects 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000011156 evaluation Methods 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 4
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 210000004209 hair Anatomy 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid 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
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- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
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- 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 present invention relates to the electrochemical corrosion measurement devices and its application method in a kind of four main tubes of boiler deoxygenation condition solution medium.At present, lack miniaturization and be provided simultaneously with phlogistication, and practical pipe sample surface state can carry out the experimental rig of fast erosion evaluation study to boiler.The present invention enters pipe including medium, electrochemical measurement auxiliary electrode, electrochemical measurement reference electrode, medium discharge duct, end cover, treats test tube sample, reinforcing plate, conducting wire and plastic fastener, end cover is with treating that test tube sample is fixed, reinforcing plate is contacted with end cover, and conducting wire is with treating that test tube sample is connect；Medium enter pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference electrode and medium discharge duct by sequentially passed through above upper reinforcing plate upper reinforcing plate and upper end cover and enter pipe sample to be measured in.The technical issues of present invention, which can solve the method used in the prior art, can not be carried out at the same time deoxygenation, and the practical boiler operatiopn pipe sample of use carries out short-term corrosion test research again.
Description
Technical field
The present invention relates to the electrochemical corrosion measurement device in a kind of four main tubes of boiler deoxygenation condition solution medium and its uses
Method is mainly used for laboratory research four main tubes of boiler in different medium except anti-in oxygen environment and after shutdown chemicals addition control water quality
Rotten effect.
Background technology
Power station boiler four-tube, that is, economizer tube, water screen tube, superheater tube and reheater tube, corrosion deposition are hairs
One of power plant's emphasis supervision and check project.Four pipes are chronically at anaerobic or weak oxygen（≤30μg/L）Service condition, to pipe sample transport
The anticorrosion effect evaluation method of row water quality survey, at present mostly using the sheet or ring-shaped sample of the making of four tubing matter and to surface
Surface observation or the experiment of weightless measurement are carried out after sanding and polishing processing, it is impossible to reflection power station boiler four-tube actual surface shape completely
The corrosion resistance of state.In the prior art, the Chinese patent application No. is 201210180539.0 discloses " station boiler chemistry
Clean the device and method of on-line measurement corrosion and cleaning performance ", which carries out electro-chemical test using bipolar electrode method, main
To be applied to the corrosion measurement of this high conductance high corrosion environment of pickle, still, which does not have phlogistication；At present,
Lack miniaturization and be provided simultaneously with phlogistication, and practical pipe sample surface state can carry out fast erosion evaluation study to boiler
Experimental rig.
Invention content
It is an object of the invention to overcome above-mentioned deficiency in the prior art, and provide a kind of reasonable in design
Electrochemical corrosion measurement device and its application method in four main tubes of boiler deoxygenation condition solution medium, can solve in background technology
The method of use can not be carried out at the same time deoxygenation, carry out the technology of short-term corrosion test research using practical boiler operatiopn pipe sample again
Problem.
Technical solution is used by the present invention solves the above problems：In a kind of four main tubes of boiler deoxygenation condition solution medium
Electrochemical corrosion measurement device including end cover, treats test tube sample, reinforcing plate and conducting wire, and the end cover is with treating test tube sample
Fixed, the reinforcing plate is contacted with end cover, and the conducting wire is with treating that test tube sample is connect；It is characterized in that, the end cover
Including upper end cover and lower end cover, the upper end cover and lower end cover are separately positioned on the top for treating test tube sample
And lower section, upper end cover and lower end cover are with treating that the sealing of test tube sample is fixed；The reinforcing plate includes upper reinforcing plate under
Reinforcing plate, the upper reinforcing plate are arranged on the top of end cover and are contacted with upper end cover, the lower reinforcing plate setting
It is contacted in the lower section of lower end cover and with lower end cover, the upper reinforcing plate and lower reinforcing plate are fastened by fastening screw and connected
It connects；The electrochemical corrosion measurement device further includes medium and enters pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference electricity
Pole, medium discharge duct and plastic fastener, the medium enter pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference electricity
Pole and medium discharge duct by sequentially passing through upper reinforcing plate and upper end cover above upper reinforcing plate and enter in pipe sample to be measured,
It is tight by plastics that the medium enters pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference electrode and medium discharge duct
Firmware is fixed with upper reinforcing plate and upper end cover；The conducting wire include No.1 conducting wire, No. two conducting wires and No. three conducting wires, described one
With treating that test tube sample is connect, No. two conducting wires are connect with electrochemical measurement auxiliary electrode for number conducting wire, No. three conducting wires and electrification
It learns and measures reference electrode connection.It is reasonable in design, available for treating test tube sample in the low electricity close to pure water system anaerobic or weak oxygen
Lead the corrosion measurement in low corrosion environment.
Furthermore, the No.1 conducting wire, No. two conducting wires and No. three conducting wires are connect with electro-chemical measuring apparatus.Using
Under the conditions of three-electrode method carries out deoxygenation or weak oxygen, all kinds of media treat the erosion analysis experiment of test tube sample.
Furthermore, the length for treating test tube sample is 10cm ~ 60cm.Its surfaces externally and internally all without working process,
Keep the reset condition on each surface.
Furthermore, the end cover be circular configuration, a diameter of 10 cm, the thickness 1.5 of the end cover
cm.Upper end cover, which is provided with 4 holes and is respectively used to medium, enters pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference
Electrode and medium discharge duct penetrate.
Furthermore, the medium enters length of the length more than medium discharge duct of pipe, the medium discharge duct
Lower end and the lower surface of upper end cover are flush.Convenient for the inlet and outlet of medium.
A kind of user of electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium as described above
Method, which is characterized in that the application method is as follows：
1）The pipe sample of economizer tube, water screen tube, superheater tube or reheater tube obtained using scene manufactures to be measured
The outer surface for treating test tube sample using the inner surface for treating test tube sample as test surfaces, is passed through No.1 conducting wire and electrochemical measurement by pipe sample
Device connects；
2）Upper end cover and lower end cover are fixed respectively with treating that the both ends of test tube sample seal, by upper reinforcing plate and lower reinforcement
Plate is respectively placed in the top of end cover and the lower section of lower end cover, and with fastening screw by upper reinforcing plate and lower reinforcing plate
It is fastenedly connected, fixes electrochemical corrosion measurement device and seals；
3）Medium is entered into pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference electrode and medium discharge duct by upper respectively
Upper reinforcing plate and upper end cover are sequentially passed through above reinforcing plate and enters in pipe sample to be measured and is fastened with plastic fastener close
Envelope；
4）One end of No. two conducting wires is connect with electrochemical measurement auxiliary electrode, by the other end and electrochemical measurement of No. two conducting wires
Device connects；One end of No. three conducting wires is connect with electrochemical measurement reference electrode, by the other end and electrochemistry of No. three conducting wires
Measuring device connects；
5）Medium will be measured pipe injection is entered by medium and treat the inside of test tube sample, medium injection to be measured is finished and can be treated
Electrochemical corrosion measurement of the test tube sample in medium is measured；In measurement process, pipe is entered to treating that test tube sample is passed through by medium
High pure nitrogen carries out deoxygenation, and high pure nitrogen, which enters, treats that the inside of test tube sample takes oxygen out of by medium discharge duct together；It measures
After, treat that the measurement medium inside test tube sample is discharged by medium discharge duct.Available for analogue measurement oxygen free condition or weak oxygen
Under the conditions of electrochemical corrosion measurement of the four main tubes of boiler in each medium, evaluate the corrosivity of medium control condition and protectant
Anti-corrosion effect.
Furthermore, the material of the end cover and plastic fastener is polytetrafluoroethylene (PTFE).Property is stablized, corrosion resistant
Corrosion is strong.
Furthermore, the material of the electrochemical measurement auxiliary electrode and electrochemical measurement reference electrode is platinum；Institute
The material for stating conducting wire is copper.Three electrode measurement corrosion rates, measurement accuracy are higher.
Compared with prior art, the present invention haing the following advantages and effect：
1）The working electrode of electrochemical measurement is fabricated to using practical four main tubes of boiler pipe sample, deoxygenation or weak is carried out using three-electrode method
Various media measure the corrosive evaluation of four pipes under the conditions of oxygen；
2）The four pipe samples that the present apparatus is suitable for various calibers measure, and more comprehensively reflect the practical table of power station boiler four-tube
The corrosion resistance of surface state；
3）It, can using laboratory research four pipe in different medium except in oxygen environment and anti-corrosion effect after chemicals addition control water quality is shut down
For evaluating the anti-corrosion effect of protection of boiler during shutdown period formula and technique to four main tubes of boiler.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention.
In figure：Medium enter pipe 1, electrochemical measurement auxiliary electrode 2, electrochemical measurement reference electrode 3, medium discharge duct 4,
End cover 5 treats test tube sample 6, reinforcing plate 7, conducting wire 8, plastic fastener 9, upper end cover 51, lower end cover 52, above adds
Strong plate 71, lower reinforcing plate 72, the conducting wire 83 of conducting wire 82, three of No.1 conducting wire 81, two.
Specific embodiment
Below in conjunction with the accompanying drawings and pass through embodiment the present invention is described in further detail, following embodiment is to this hair
Bright explanation and the invention is not limited in following embodiments.
Embodiment.
Referring to Fig. 1, the electrochemical corrosion measurement device in a kind of four main tubes of boiler deoxygenation condition solution medium, including sealed end
Lid 5 treats test tube sample 6, reinforcing plate 7 and conducting wire 8, and with treating that test tube sample 6 is fixed, reinforcing plate 7 contacts end cover 5 with end cover 5,
Conducting wire 8 is with treating that test tube sample 6 is connect.
End cover 5 includes upper end cover 51 and lower end cover 52, and upper end cover 51 and lower end cover 52 divide
It is not arranged on and treats above and below test tube sample 6, upper end cover 51 and lower end cover 52 are with treating that the sealing of test tube sample 6 is solid
Fixed, end cover 5 is circular configuration made of insulating materials, and a diameter of 10 cm, the thickness of end cover 5 are 1.5 cm, upper close
Sealing end lid 51 is provided with 4 holes and enters pipe 1, electrochemical measurement auxiliary electrode 2,3 and of electrochemical measurement reference electrode for medium
Medium discharge duct 4 penetrates.
Reinforcing plate 7 includes upper reinforcing plate 71 and lower reinforcing plate 72, and upper reinforcing plate 71 is arranged on the top of end cover 51
And contacted with upper end cover 51, lower reinforcing plate 72 is arranged on the lower section of lower end cover 52 and is contacted with lower end cover 52,
Upper reinforcing plate 71 and lower reinforcing plate 72 are fastenedly connected by fastening screw, and end cover 5 is fastened, sealed with treating test tube sample 6.
Electrochemical corrosion measurement device further includes medium and enters pipe 1, electrochemical measurement auxiliary electrode 2, electrochemical measurement ginseng
Than electrode 3, medium discharge duct 4 and plastic fastener 9, medium enters pipe 1, electrochemical measurement auxiliary electrode 2, electrochemical measurement ginseng
Than electrode 3 and medium discharge duct 4 sequentially passes through upper reinforcing plate 71 by the top of upper reinforcing plate 71 and upper end cover 51 is gone forward side by side
Enter to treat in test tube sample 6, medium enter pipe 1 length be more than medium discharge duct 4 length, the lower end of medium discharge duct 4 with it is upper close
The lower surface of sealing end lid 51 is flush, and medium enters pipe 1, electrochemical measurement auxiliary electrode 2,3 and of electrochemical measurement reference electrode
Medium discharge duct 4 is fixed by plastic fastener 9 and upper reinforcing plate 71 and upper end cover 51；
Conducting wire 8 includes 81, No. two conducting wires 82 of No.1 conducting wire and No. three conducting wires 83, and No.1 conducting wire 81 is with treating that test tube sample 6 is connect, No. two
Conducting wire 82 is connect with electrochemical measurement auxiliary electrode 2, and No. three conducting wires 83 are connect with electrochemical measurement reference electrode 3, meanwhile, No.1
81, No. two conducting wires 82 of conducting wire and No. three conducting wires 83 are connect with electro-chemical measuring apparatus；Electrochemical measurement auxiliary electrode 2 and electrification
The material for learning measurement reference electrode 3 is platinum, and the material of conducting wire 8 is copper.Treat test tube sample 6, electrochemical measurement auxiliary electrode 2 and electricity
Chemical measurement reference electrode 3 forms working electrode, auxiliary electrode and the reference electrode of three electrode measurement systems.
A kind of user of electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium as described above
Method, application method are as follows：
1）The pipe sample of economizer tube, water screen tube, superheater tube or reheater tube obtained using scene manufactures to be measured
Pipe sample 6, the length for treating test tube sample 6 is 10cm ~ 60cm, treats that the surfaces externally and internally of test tube sample 6 all without working process, protects it
Each surface is reset condition；Using the inner surface for treating test tube sample 6 as test surfaces, the outer surface for treating test tube sample 6 is led by No.1
Line 81 is connect with electro-chemical measuring apparatus；
2）Upper end cover 51 and lower end cover 52 are fixed respectively with treating that the both ends of test tube sample 6 seal, by upper reinforcing plate 71
The top of upper end cover 51 and the lower section of lower end cover 52 are respectively placed in lower reinforcing plate 72, and is added with fastening screw by upper
Strong plate 71 and lower reinforcing plate 72 are fastenedly connected, and are fixed electrochemical corrosion measurement device and are sealed；
3）Medium is entered into pipe 1, electrochemical measurement auxiliary electrode 2, electrochemical measurement reference electrode 3 and medium discharge duct 4 respectively
Upper reinforcing plate 71 and upper end cover 51 are sequentially passed through by the top of upper reinforcing plate 71 and is entered in pipe sample 6 to be measured and tight with plastics
9 fit sealing of firmware；The material of end cover 5 and plastic fastener 9 is polytetrafluoroethylene (PTFE), and corrosion resistance is strong；
4）One end of No. two conducting wires 82 is connect with electrochemical measurement auxiliary electrode 2, by the other end of No. two conducting wires 82 and electrification
Learn measuring device connection；One end of No. three conducting wires 83 is connect with electrochemical measurement reference electrode 3, by the another of No. three conducting wires 83
End is connect with electro-chemical measuring apparatus；
5）It medium will be measured pipe 1 is entered by medium injects and treat the inside of test tube sample 6, medium injection to be measured is finished and can be carried out
Treat electrochemical corrosion measurement of the test tube sample 6 in medium is measured；In measurement process, pipe 1 is entered to treating test tube sample 6 by medium
It is passed through high pure nitrogen and carries out deoxygenation, high pure nitrogen enters the inside for treating test tube sample 6 by oxygen together by 4 band of medium discharge duct
Go out；After measurement, treat that the measurement medium inside test tube sample 6 is discharged by medium discharge duct 4.
Although the present invention is disclosed as above with embodiment, it is not limited to protection scope of the present invention, any to be familiar with
The technical staff of this technology changes and retouches what is made without departing from the spirit and scope of the invention, should all belong to this hair
Bright protection domain.
Claims (8)
1. the electrochemical corrosion measurement device in a kind of four main tubes of boiler deoxygenation condition solution medium, including end cover, treats test tube
Sample, reinforcing plate and conducting wire, with treating that test tube sample is fixed, the reinforcing plate contacts the end cover with end cover, the conducting wire
With treating that test tube sample is connect；It is characterized in that, the end cover includes upper end cover and lower end cover, the upper sealed end
Lid and lower end cover are separately positioned on and treat above and below test tube sample, and upper end cover and lower end cover are with treating test tube
Sample sealing is fixed；The reinforcing plate includes upper reinforcing plate and lower reinforcing plate, and the upper reinforcing plate is arranged on the upper of end cover
The upper end cover contacts of Fang Bingyu, the lower reinforcing plate are arranged on the lower section of lower end cover and are contacted with lower end cover, institute
It states upper reinforcing plate and lower reinforcing plate is fastenedly connected by fastening screw；The electrochemical corrosion measurement device further includes medium entrance
Pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference electrode, medium discharge duct and plastic fastener, the medium enter
Pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference electrode and medium discharge duct are worn successively by the top of upper reinforcing plate
It crosses upper reinforcing plate and upper end cover and enters in pipe sample to be measured, the medium enters pipe, electrochemical measurement auxiliary electrode, electrification
It learns measurement reference electrode and medium discharge duct is fixed by plastic fastener and upper reinforcing plate and upper end cover；The conducting wire
Including No.1 conducting wire, No. two conducting wires and No. three conducting wires, the No.1 conducting wire is with treating that test tube sample is connect, No. two conducting wires and electrification
It learns and measures auxiliary electrode connection, No. three conducting wires are connect with electrochemical measurement reference electrode.
2. the electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium according to claim 1, special
Sign is that the No.1 conducting wire, No. two conducting wires and No. three conducting wires are connect with electro-chemical measuring apparatus.
3. the electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium according to claim 1, special
Sign is that the length for treating test tube sample is 10cm ~ 60cm.
4. the electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium according to claim 1, special
Sign is that the end cover is circular configuration, and a diameter of 10 cm, the thickness of the end cover are 1.5 cm.
5. the electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium according to claim 1, special
Sign is that the medium enters length of the length more than medium discharge duct of pipe, the lower end of the medium discharge duct and upper sealing
The lower surface of end cap is flush.
6. a kind of corrosion in four main tubes of boiler deoxygenation condition solution medium as described in any one of claim 1-5 claims
The application method of electro-chemical measuring apparatus, which is characterized in that the application method is as follows：
1）The pipe sample of economizer tube, water screen tube, superheater tube or reheater tube obtained using scene manufactures to be measured
The outer surface for treating test tube sample using the inner surface for treating test tube sample as test surfaces, is passed through No.1 conducting wire and electrochemical measurement by pipe sample
Device connects；
2）Upper end cover and lower end cover are fixed respectively with treating that the both ends of test tube sample seal, by upper reinforcing plate and lower reinforcement
Plate is respectively placed in the top of end cover and the lower section of lower end cover, and with fastening screw by upper reinforcing plate and lower reinforcing plate
It is fastenedly connected, fixes electrochemical corrosion measurement device and seals；
3）Medium is entered into pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference electrode and medium discharge duct by upper respectively
Upper reinforcing plate and upper end cover are sequentially passed through above reinforcing plate and enters in pipe sample to be measured and is fastened with plastic fastener close
Envelope；
4）One end of No. two conducting wires is connect with electrochemical measurement auxiliary electrode, by the other end and electrochemical measurement of No. two conducting wires
Device connects；One end of No. three conducting wires is connect with electrochemical measurement reference electrode, by the other end and electrochemistry of No. three conducting wires
Measuring device connects；
5）Medium will be measured pipe injection is entered by medium and treat the inside of test tube sample, medium injection to be measured is finished and can be treated
Electrochemical corrosion measurement of the test tube sample in medium is measured；In measurement process, pipe is entered to treating that test tube sample is passed through by medium
High pure nitrogen carries out deoxygenation, and high pure nitrogen, which enters, treats that the inside of test tube sample takes oxygen out of by medium discharge duct together；It measures
After, treat that the measurement medium inside test tube sample is discharged by medium discharge duct.
7. the use of the electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium according to claim 6
Method, which is characterized in that the material of the end cover and plastic fastener is polytetrafluoroethylene (PTFE).
8. the use of the electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium according to claim 6
Method, which is characterized in that the material of the electrochemical measurement auxiliary electrode and electrochemical measurement reference electrode is platinum；It is described to lead
The material of line is copper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810146725.XA CN108169117A (en) | 2018-02-12 | 2018-02-12 | Electrochemical corrosion measurement device and its application method in a kind of four main tubes of boiler deoxygenation condition solution medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810146725.XA CN108169117A (en) | 2018-02-12 | 2018-02-12 | Electrochemical corrosion measurement device and its application method in a kind of four main tubes of boiler deoxygenation condition solution medium |
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| CN109269974A (en) * | 2018-11-20 | 2019-01-25 | 重庆市特种设备检测研究院 | A kind of test method of the online Electrochemical corrosion rate of boiler |
| CN110426430A (en) * | 2019-09-02 | 2019-11-08 | 西安热工研究院有限公司 | A kind of big pipeline material field electrochemical test device of power plant and method |
| WO2021011616A1 (en) * | 2019-07-15 | 2021-01-21 | Saudi Arabian Oil Company | Method and system for corrosion simulation and assessment |
| CN113552057A (en) * | 2021-06-22 | 2021-10-26 | 中国原子能科学研究院 | Atmosphere control device for nuclide migration research |
| CN114544475A (en) * | 2021-12-28 | 2022-05-27 | 华电电力科学研究院有限公司 | Water sample corrosivity evaluation device in system during equipment outage maintenance |
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