CN208091882U - A kind of electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium - Google Patents
A kind of electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium Download PDFInfo
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- CN208091882U CN208091882U CN201820252866.5U CN201820252866U CN208091882U CN 208091882 U CN208091882 U CN 208091882U CN 201820252866 U CN201820252866 U CN 201820252866U CN 208091882 U CN208091882 U CN 208091882U
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- end cover
- reinforcing plate
- medium
- test tube
- electrochemical
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Abstract
The utility model is related to the electrochemical corrosion measurement devices in a kind of four main tubes of boiler deoxygenation condition solution medium.Currently, lacking miniaturization and being provided simultaneously with phlogistication, and the experimental rig of fast erosion evaluation study can be carried out to the practical pipe sample surface state of boiler.The utility model includes that medium enters pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference electrode, medium discharge duct, end cover, waits for test tube sample, reinforcing plate, conducting wire and plastic fastener, end cover is fixed with test tube sample is waited for, reinforcing plate is contacted with end cover, and conducting wire is connect with test tube sample is waited for；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 the utility model, 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 utility model is related to the electrochemical corrosion measurement devices in a kind of four main tubes of boiler deoxygenation condition solution medium, mainly
For laboratory research four main tubes of boiler in different medium except the anti-corrosion effect in oxygen environment and after shutting down chemicals addition control water quality.
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 mostly uses the sheet or ring-shaped sample that four tubing matter make and to surface at present
Surface observation or the experiment of weightless measurement are carried out after sanding and polishing processing, cannot reflect power station boiler four-tube actual surface shape completely
The corrosion resistance of state.In the prior art, application No. is 201210180539.0 Chinese patents to disclose " 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；Currently,
Lack miniaturization and be provided simultaneously with phlogistication, and fast erosion evaluation study can be carried out to the practical pipe sample surface state of boiler
Experimental rig.
Utility model content
The purpose of the utility model is to overcome above-mentioned deficiencies existing in the prior art, and provide a kind of structure design conjunction
Electrochemical corrosion measurement device in the four main tubes of boiler deoxygenation condition solution medium of reason, can solve the side used in background technology
The technical issues of method 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.
The technical scheme in the invention for solving the above technical problem is：A kind of four main tubes of boiler deoxygenation condition solution medium
In electrochemical corrosion measurement device, including end cover, wait for test tube sample, reinforcing plate and conducting wire, the end cover with it is to be measured
Pipe sample is fixed, and the reinforcing plate is contacted with end cover, and the conducting wire is connect with test tube sample is waited for；It is characterized in that, the sealing
End cap includes upper end cover and lower end cover, and the upper end cover and lower end cover are separately positioned on and wait for test tube sample
Above and below, upper end cover and lower end cover are fixed with the sealing of test tube sample is waited for；The reinforcing plate includes upper reinforcing plate
And lower reinforcing plate, the upper reinforcing plate are arranged in the top of upper end cover and are contacted with upper end cover, the lower reinforcing plate
It is arranged in the lower section of lower end cover and is contacted with lower end cover, the upper reinforcing plate and lower reinforcing plate is tight by fastening screw
It is solidly connected；The electrochemical corrosion measurement device further includes that medium enters pipe, electrochemical measurement auxiliary electrode, electrochemical measurement ginseng
Than electrode, medium discharge duct and plastic fastener, the medium enters pipe, electrochemical measurement auxiliary electrode, electrochemical measurement ginseng
Than electrode and medium discharge duct by sequentially passing through upper reinforcing plate and upper end cover above upper reinforcing plate and enter pipe to be measured
In sample, the medium enters pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference electrode and medium discharge duct and passes through modeling
Material fastener is fixed with upper reinforcing plate and upper end cover；The conducting wire includes No.1 conducting wire, No. two conducting wires and No. three conducting wires, institute
No.1 conducting wire is stated to connect with test tube sample is waited for, No. two conducting wires are connect with electrochemical measurement auxiliary electrode, No. three conducting wires with
Electrochemical measurement reference electrode connects.It is reasonable in design, it can be used for waiting for test tube sample close to pure water system anaerobic or weak oxygen
Corrosion measurement in low conductance 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 waiting for 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 is 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 the economizer tube, water screen tube, superheater tube or the reheater tube that are obtained using scene is manufactured
It waits for test tube sample, using the inner surface for waiting for test tube sample as test surfaces, will wait for that the outer surface of test tube sample passes through No.1 conducting wire and electrochemistry
Measuring device connects；
2）Upper end cover and lower end cover are sealed into fixation with the both ends of test tube sample are waited for respectively, by upper reinforcing plate under
Reinforcing plate is respectively placed in the lower section of the top and lower end cover of end cover, be used in combination fastening screw by upper reinforcing plate and it is lower plus
Strong plate is fastenedly connected, and so that electrochemical corrosion measurement device is fixed and is sealed；
3）Medium is entered into pipe, electrochemical measurement auxiliary electrode, electrochemical measurement reference electrode and medium discharge duct respectively
By sequentially passed through above upper reinforcing plate upper reinforcing plate and upper end cover and enter pipe sample to be measured in and with plastic fastener it is tight
Gu sealing；
4）One end of No. two conducting wires is connect with electrochemical measurement auxiliary electrode, by the other end and electrochemistry of No. two conducting wires
Measuring device connects；One end of No. three conducting wires is connect with electrochemical measurement reference electrode, by the other end of No. three conducting wires and electricity
Chemical measurement device connects；
5）Medium will be measured pipe injection is entered by medium and wait for the inside of test tube sample, medium injection to be measured finishes can be into
Row waits for electrochemical corrosion measurement of the test tube sample in measuring medium；In measurement process, pipe is entered to waiting for test tube sample by medium
It is passed through high pure nitrogen and carries out deoxygenation, high pure nitrogen, which enters, waits for that the inside of test tube sample takes oxygen out of by medium discharge duct together；
After measurement, wait for that the measurement medium inside test tube sample is discharged by medium discharge duct.Can be used for analogue measurement oxygen free condition or
Electrochemical corrosion measurement of the four main tubes of boiler in each medium under the conditions of weak oxygen evaluates corrosivity and the protection of medium control condition
The anti-corrosion effect of agent.
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.
The utility model compared with prior art, has the following advantages and effect：
1）It is fabricated to the working electrode of electrochemical measurement using practical four main tubes of boiler pipe sample, deoxygenation is carried out using three-electrode method
Or various media pair four manage corrosive evaluation measurement under the conditions of weak oxygen；
2）The four pipe samples that the present apparatus is suitable for various calibers measure, and more comprehensively reflection power station boiler four-tube is real
The corrosion resistance of border surface state；
3）Using four pipe of laboratory research in different medium except anti-corrosion is imitated in oxygen environment and after shutting down chemicals addition control water quality
Fruit can be used 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 structural schematic diagram of the utility model embodiment.
In figure：Medium enter pipe 1, electrochemical measurement auxiliary electrode 2, electrochemical measurement reference electrode 3, medium discharge duct 4,
End cover 5 waits for 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 implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
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 waits for that test tube sample 6, reinforcing plate 7 and conducting wire 8, end cover 5 are fixed with test tube sample 6 is waited for, reinforcing plate 7 is contacted with end cover 5,
Conducting wire 8 is connect with test tube sample 6 is waited for.
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 and is waiting for above and below test tube sample 6, upper end cover 51 and lower end cover 52 seals admittedly with test tube sample 6 is waited for
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 in the top of upper end cover 51
And contacted with upper end cover 51, lower reinforcing plate 72 is arranged in 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, by end cover 5 and wait for the fastening of test tube sample 6, sealing.
Electrochemical corrosion measurement device further includes that medium 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 wait 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 that 81, No. two conducting wires 82 of No.1 conducting wire and No. three conducting wires 83, No.1 conducting wire 81 are connect with test tube sample 6 is waited for,
No. two conducting wires 82 are connect with electrochemical measurement auxiliary electrode 2, and No. three conducting wires 83 are connect with electrochemical measurement reference electrode 3, meanwhile,
81, No. two conducting wires 82 of No.1 conducting wire and No. three conducting wires 83 are connect with electro-chemical measuring apparatus；2 He of electrochemical measurement auxiliary electrode
The material of electrochemical measurement reference electrode 3 is platinum, and the material of conducting wire 8 is copper.Wait for test tube sample 6, electrochemical measurement auxiliary electrode 2
Working electrode, auxiliary electrode and the reference electrode of three electrode measurement systems are formed with electrochemical measurement reference electrode 3.
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 the economizer tube, water screen tube, superheater tube or the reheater tube that are obtained using scene is manufactured
It waits for test tube sample 6, waits for that the length of test tube sample 6 is 10cm ~ 60cm, wait for the surfaces externally and internally of test tube sample 6 all without working process,
It is reset condition to protect its each surface；Using the inner surface for waiting for test tube sample 6 as test surfaces, the outer surface of test tube sample 6 will be waited for by one
Number conducting wire 81 is connect with electro-chemical measuring apparatus；
2）Upper end cover 51 and lower end cover 52 are sealed into fixation with the both ends of test tube sample 6 are waited for respectively, by upper reinforcement
Plate 71 and lower reinforcing plate 72 are respectively placed in the lower section of the top and lower end cover 52 of end cover 51, are used in combination fastening screw will
Upper reinforcing plate 71 and lower reinforcing plate 72 are fastenedly connected, and so that electrochemical corrosion measurement device is fixed and are sealed；
3）Medium is entered pipe 1, electrochemical measurement auxiliary electrode 2, electrochemical measurement reference electrode 3 and medium respectively to be discharged
Pipe 4 is sequentially passed through upper reinforcing plate 71 and upper end cover 51 by the top of upper reinforcing plate 71 and is entered in pipe sample to be measured 6 and with moulding
Expect 9 fit sealing of fastener；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 with
Electro-chemical measuring apparatus connects；One end of No. three conducting wires 83 is connect with electrochemical measurement reference electrode 3, by No. three conducting wires 83
The other end is connect with electro-chemical measuring apparatus；
5）Medium will be measured, the inside that the injection of pipe 1 waits for test tube sample 6 is entered by medium, medium injection to be measured finishes
It carries out waiting for electrochemical corrosion measurement of the test tube sample 6 in measuring medium；In measurement process, pipe 1 is entered to be measured by medium
Pipe sample 6 is passed through high pure nitrogen and carries out deoxygenation, and high pure nitrogen, which enters, waits for that oxygen is passed through medium discharge duct by the inside of test tube sample 6 together
4 take out of；After measurement, wait for that the measurement medium inside test tube sample 6 is discharged by medium discharge duct 4.
Although the utility model is disclosed as above with embodiment, it is not limited to the scope of protection of the utility model,
Any technical staff for being familiar with this technology, in the conception and scope for not departing from the utility model made by change and retouch,
It all should belong to the protection range of the utility model.
Claims (5)
1. the electrochemical corrosion measurement device in a kind of four main tubes of boiler deoxygenation condition solution medium, including end cover, wait for test tube
Sample, reinforcing plate and conducting wire, the end cover are fixed with test tube sample is waited for, the reinforcing plate is contacted with end cover, the conducting wire
It is connect with test tube sample is waited for；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 wait for above and below test tube sample, upper end cover and lower end cover with wait for test tube
Sample sealing is fixed；The reinforcing plate includes upper reinforcing plate and lower reinforcing plate, and the upper reinforcing plate is arranged in the upper of upper end cover
The upper end cover contacts of Fang Bingyu, the lower reinforcing plate are arranged in 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 that medium enters
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 connect with test tube sample is waited for, 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 waiting for 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252866.5U CN208091882U (en) | 2018-02-12 | 2018-02-12 | A kind of electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820252866.5U CN208091882U (en) | 2018-02-12 | 2018-02-12 | A kind of electrochemical corrosion measurement device in four main tubes of boiler deoxygenation condition solution medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169117A (en) * | 2018-02-12 | 2018-06-15 | 华电电力科学研究院有限公司 | 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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2018
- 2018-02-12 CN CN201820252866.5U patent/CN208091882U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169117A (en) * | 2018-02-12 | 2018-06-15 | 华电电力科学研究院有限公司 | 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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