CN209069805U - A kind of corrosion on-line measurement device of boiler tube Process of Chemical Cleaning - Google Patents
A kind of corrosion on-line measurement device of boiler tube Process of Chemical Cleaning Download PDFInfo
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- CN209069805U CN209069805U CN201821900251.5U CN201821900251U CN209069805U CN 209069805 U CN209069805 U CN 209069805U CN 201821900251 U CN201821900251 U CN 201821900251U CN 209069805 U CN209069805 U CN 209069805U
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- boiler tube
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- corrosion
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Abstract
The utility model relates to a kind of corrosion on-line measurement devices of boiler tube Process of Chemical Cleaning, including the first measuring device and the second measuring device, first, second measuring device includes several dead rings, at least one ring electrode and a U-shaped metal tube, dead ring is with the setting of ring electrode interval and fixed seal connection forms the tubulose measuring device being connected to, tubulose measuring device both ends are connect by flange with boiler tube to be cleaned, one insulating ring side wall offers through-hole, metal tube one end is connected to through-hole, the other end is equipped with reference electrode, ring electrode in first measuring device is made of boiler tube to be cleaned, ring electrode in second measuring device with the No scale pot boiler tube of boiler tube same material to be cleaned by being made, the utility model can make electrode identical as boiler tube wash course using boiler tube to be measured as measuring electrode , and the No scale pot boiler tube being arranged in measurement of comparison device i.e. the second ring loading electrode, come when accurate judgement incrustation cleans up.
Description
Technical field
The utility model relates to detection device and method, in particular to a kind of corrosion of station boiler Process of Chemical Cleaning exists
Line measuring device and method.
Background technique
The boiler tube that power station uses can will form oxide layer, i.e. incrustation, shadow outside inner wall after prolonged use on hot face
The thermal efficiency for ringing boiler needs that chemical cleaning method is periodically used to remove incrustation, currently, can pass through electrochemical corrosion potential ECP
Monitoring technology, electrochemical impedance spectroscopy monitoring technology, electrochemistry noise monitoring technology and resistance probe monitoring technology etc. are clear to monitor
Process is washed, but the above method is unable to judge accurately whether incrustation cleans up just, causes cleaning process to terminate partially early or inclined
Evening, the case where cleaning not exclusively there are incrustation or corrode boiler tube.
Utility model content
The utility model in order to solve the problems in the existing technology, provide it is a kind of can accurate measurements cleaning effect pot
The corrosion on-line measurement device of furnace Process of Chemical Cleaning.
In order to achieve the above object, the utility model proposes technical solution are as follows: a kind of boiler tube Process of Chemical Cleaning
Corrode on-line measurement device, including the first measuring device and the second measuring device, if first, second measuring device includes
Dry dead ring, at least one ring electrode and a U-shaped metal tube, the dead ring and the setting of ring electrode interval are simultaneously
Fixed seal connection forms the tubulose measuring device of connection, and tubulose measuring device both ends are connected by flange and boiler tube to be cleaned
It connecing, an insulating ring side wall offers through-hole, and described metal tube one end is connected to through-hole, and the other end is equipped with reference electrode, and described the
Ring electrode in one measuring device is made of boiler tube to be cleaned, the ring electrode in the second measuring device by with pot to be cleaned
The No scale pot boiler tube of boiler tube same material is made.
Be further designed to above-mentioned technical proposal: the metal tube other end tube wall is equipped with mounting hole, the ginseng
Mounting hole is inserted into than electrode one end and is protruded into metal tube, and the other end is located at outside metal tube.
Metal tube other end end is equipped with counterbalance valve.
The metal pipe outer wall is wound with cooling tube.
The reference electrode other end and ring electrode outer wall are respectively connected with conducting wire.
The ring electrode and dead ring internal diameter match each other.
The dead ring is made of polytetrafluoroethylene material.
A kind of measurement method of the corrosion on-line measurement device of boiler tube Process of Chemical Cleaning, it is cyclic annular in the first measuring device
Electrode is made by intercepting boiler tube to be cleaned, and the first measuring device is connect with the boiler tube to be cleaned after truncation, first,
Conducting wire in two measuring devices is connect with identical electrochemical measurement instrument respectively, and the first and second measuring device is placed in identical
It cleans in environment；
The primary data for keeping the electrochemical measurement instrument connecting with the second measuring device in mind, to be connect with the first measuring device
Electrochemical measurement instrument data it is identical as above-mentioned primary data after stop the cleaning of boiler tube to be cleaned.
The utility model has the following beneficial effects:
The first measuring device is by intercepting boiler tube to be measured as measuring electrode, to clear on boiler tube in the utility model
The incrustation washed is identical as on electrode, can determine whether entire boiler tube by the cleaning situation of incrustation on measurement ring electrode
Cleaning situation, and wash course is compared by the second measuring device cleaned under environment on an equal basis, it can be with accurate judgement
When incrustation cleans up just.
Former pot is returned by flanged joint after intercepting boiler tube, through flange in first measuring device both ends by the utility model
Boiler tube pipeline will not influence the circulation for cutting open pipeline, wash course.
The utility model aperture on dead ring, and arrange reference electrode, without to the another aperture of boiler tube；Joined by setting
Than electrode, it can accurately measure and reflect the electrode potential of metal electrode to be measured (i.e. ring electrode), prevent electrode metal to be measured
In Susceptibility To Intergranular Corrosion region, a possibility that reducing " cross and wash ", guarantee is washed metal tube and is in potential safety always
Area.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the measuring device of the utility model.
In above-mentioned attached drawing: 1- ring electrode, 2- dead ring, 21- through-hole, 3- metal tube, 31- mounting hole, 4- reference electrode,
5- counterbalance valve, 6- flange, 7- conducting wire, 8- cooling tube, 9- capillary.
Specific embodiment
With reference to the accompanying drawing and the utility model is described in detail in specific embodiment.
Embodiment
As shown in Figure 1, a kind of corrosion on-line measurement device of boiler tube Process of Chemical Cleaning of the utility model, if including
A dry dead ring 2, at least one ring electrode 1 and a U-shaped metal tube 3, there are three dead ring 2 is set in the present embodiment,
There are two ring electrode 1 is set, dead ring 2 is made up of corrosion resistant polytetrafluoroethylene (PTFE), and ring electrode is by intercepting pot to be measured
Boiler tube is made, and 2 internal diameter of dead ring and outer diameter match with ring electrode 1, dead ring 2 and the setting of the interval of ring electrode 1, connection
Place keeps sealing by anticorrosive glue fixed bonding, forms it into the tubulose measuring device of connection, tubulose measuring device it is interior
Wall and outer wall are smoothly connected, and flange 6 is fixedly installed in tubulose measuring device both ends, and passes through the pot to be cleaned of flange 6 and truncation
Boiler tube connection, does not influence the normal circulation of boiler tube.
Wherein 2 side wall of a dead ring offers through-hole 21, and 3 one end of metal tube is connected to through-hole 21 and junction seals, can
Make metal tube 3 formed salt bridge, the other end end be arranged counterbalance valve 5, because be likely to be in boiler tube cleaning process 100 degree with
On, counterbalance valve 5 can guarantee that measuring system works normally, overvoltage protection, and can be by the pressure of control counterbalance valve 5, to control
Metal pipe pressure makes metal tube 3 and boiler tube internal pressure power keep balancing；The metal tube other end is also provided with mounting hole 31, installation
Reference electrode 4 is set in hole 31, and reference electrode 4 and mounting hole 31 are tightly connected, and one end insertion mounting hole 31 simultaneously protrudes into metal tube 3
Interior, the other end is located at outside metal tube 3, is also arranged with cooling tube 8 on 3 outer wall of metal tube, solution in metal tube 3 can be cooled to ginseng
Than the temperature range that electrode 4 can work, guarantee reference electrode reliably working.
The present embodiment is equipped with a capillary 9 in the middle part of metal tube, can not only guarantee the connection of 9 liang of side systems of capillary, but also
Guarantor can reduce 9 right side pressure-bearing of capillary and reduce pressure-bearing at reference electrode 4, guarantee measurement accuracy；Reduce cleaning solution and reference
Electrode influences each other.
4 other end of reference electrode and 1 outer wall of ring electrode in the present embodiment are respectively connected with conducting wire 7, are used for and electrochemistry
Measuring instrument connection.
The measuring device of the present embodiment includes essentially identical the first measuring device and the second measuring device of structure, and first surveys
Amount device in ring electrode 1 be made of boiler tube to be cleaned, the ring electrode 1 in the second measuring device by with boiler to be cleaned
The No scale pot boiler tube of pipe same material is made.
Using the measurement method of the corrosion on-line measurement device of the Boiler Chemical process of the present embodiment, including walk as follows
It is rapid:
Step 1: the first measuring device is connect with the boiler tube to be cleaned after truncation, leading in the first and second measuring device
Line is connect with identical electrochemical measurement instrument respectively, and the potentiostat of potentiometric detection, galvanic couple detection may be selected in electrochemical apparatus
High resistant instrument or AC impedance detection frequency response generator etc..
Step 2: the first and second measuring device is placed in identical cleaning environment, cleaned；
Step 3: keep the initial measurement data for the electrochemical measurement instrument connecting with the second measuring device in mind, to first
Stop the cleaning of boiler tube to be cleaned after the data of the electrochemical measurement instrument of measuring device connection are identical as above-mentioned primary data.
Show that the incrustation on the ring electrode (i.e. boiler tube) of the first measuring device cleans up, in the second measuring device without dirt
Boiler tube is identical.
The technical solution of the utility model is not limited to the various embodiments described above, all technologies obtained using equivalent replacement mode
Scheme is all fallen in the range of the requires of the utility model protection.
Claims (7)
1. a kind of corrosion on-line measurement device of boiler tube Process of Chemical Cleaning, it is characterised in that: including the first measuring device and
Second measuring device, first, second measuring device include several dead rings, at least one ring electrode and one in U
The metal tube of font, the dead ring is with the setting of ring electrode interval and fixed seal connection forms the tubulose measurement dress being connected to
It sets, tubulose measuring device both ends are connect by flange with boiler tube to be cleaned, and an insulating ring side wall offers through-hole, the metal
Pipe one end is connected to through-hole, and the other end is equipped with reference electrode, and the ring electrode in first measuring device is by boiler to be cleaned
Pipe is made, and the ring electrode in the second measuring device with the No scale pot boiler tube of boiler tube same material to be cleaned by being made.
2. the corrosion on-line measurement device of boiler tube Process of Chemical Cleaning according to claim 1, it is characterised in that: the gold
Belong to pipe other end tube wall and be equipped with mounting hole, described reference electrode one end is inserted into mounting hole and is protruded into metal tube, other end position
In outside metal tube.
3. the corrosion on-line measurement device of boiler tube Process of Chemical Cleaning according to claim 2, it is characterised in that: the gold
Belong to pipe other end end and is equipped with counterbalance valve.
4. the corrosion on-line measurement device of boiler tube Process of Chemical Cleaning according to claim 3, it is characterised in that: the gold
Belong to pipe outer wall and is wound with cooling tube.
5. the corrosion on-line measurement device of boiler tube Process of Chemical Cleaning according to claim 1, it is characterised in that: the ginseng
Conducting wire is respectively connected with than the electrode other end and ring electrode outer wall.
6. the corrosion on-line measurement device of boiler tube Process of Chemical Cleaning according to claim 1, it is characterised in that: the ring
Shape electrode and dead ring internal diameter match each other.
7. the corrosion on-line measurement device of boiler tube Process of Chemical Cleaning according to claim 1, it is characterised in that: described exhausted
Edge ring is made of polytetrafluoroethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821900251.5U CN209069805U (en) | 2018-11-19 | 2018-11-19 | A kind of corrosion on-line measurement device of boiler tube Process of Chemical Cleaning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821900251.5U CN209069805U (en) | 2018-11-19 | 2018-11-19 | A kind of corrosion on-line measurement device of boiler tube Process of Chemical Cleaning |
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| Publication Number | Publication Date |
|---|---|
| CN209069805U true CN209069805U (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821900251.5U Active CN209069805U (en) | 2018-11-19 | 2018-11-19 | A kind of corrosion on-line measurement device of boiler tube Process of Chemical Cleaning |
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| CN (1) | CN209069805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238955A (en) * | 2018-11-19 | 2019-01-18 | 国电南京电力试验研究有限公司 | A kind of corrosion on-line measurement device and method of boiler tube Process of Chemical Cleaning |
-
2018
- 2018-11-19 CN CN201821900251.5U patent/CN209069805U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238955A (en) * | 2018-11-19 | 2019-01-18 | 国电南京电力试验研究有限公司 | A kind of corrosion on-line measurement device and method of boiler tube Process of Chemical Cleaning |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210046 fairyland Road, Qixia District, Nanjing, Jiangsu Province, No. 10 Patentee after: Guoneng Nanjing Electric Power Test Research Co.,Ltd. Address before: 210046 fairyland Road, Qixia District, Nanjing, Jiangsu Province, No. 10 Patentee before: GUODIAN NANJING ELECTRIC POWER TEST RESEARCH Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |