CN109444038A - A method of cooperating the circulation solution electrolytic cell device of wire beam electrode and it is utilized to carry out potential test - Google Patents
A method of cooperating the circulation solution electrolytic cell device of wire beam electrode and it is utilized to carry out potential test Download PDFInfo
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- CN109444038A CN109444038A CN201811301150.0A CN201811301150A CN109444038A CN 109444038 A CN109444038 A CN 109444038A CN 201811301150 A CN201811301150 A CN 201811301150A CN 109444038 A CN109444038 A CN 109444038A
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000498 cooling water Substances 0.000 claims abstract description 42
- 238000005259 measurement Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 230000007797 corrosion Effects 0.000 claims description 11
- 238000005260 corrosion Methods 0.000 claims description 11
- 239000003792 electrolyte Substances 0.000 claims description 11
- 230000005855 radiation Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 239000000110 cooling liquid Substances 0.000 claims description 3
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 238000002848 electrochemical method Methods 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000565 sealant 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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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
本发明提供一种配合丝束电极的循环溶液电解池装置及利用其进行电位测试的方法，电解液恒温水槽通过电解液管路与散热管道的散热管道入口相连通，降温恒温水槽通过降温水管路和降温水槽入水口与降温水槽相连通，在降温水槽的另一侧设置有降温水槽出水口，红外测温仪设置在降温水槽的内壁上，散热管道盘绕在降温水槽内，在散热管道的水平部上开设有测试电极插槽，测试电极插在测试电极插槽内，在散热管道的散热管道入口处开设有参比电极插槽，参比电极插在参比电极插槽内。采用丝束电极进行测量，不同位置处的测试电极的温度存在均匀的变化，对不同的温度下的电极进行同时测量，得到每个温度下电极表面的电流电位的实时变化。
The invention provides a circulating solution electrolytic cell device matched with a tow electrode and a method for using the same for potential test. It is connected with the cooling water inlet and the cooling water tank. The cooling water outlet is provided on the other side of the cooling water tank. The infrared thermometer is arranged on the inner wall of the cooling water tank. There is a test electrode slot on the upper part, the test electrode is inserted in the test electrode slot, and a reference electrode slot is opened at the entrance of the heat dissipation pipe of the heat dissipation pipe, and the reference electrode is inserted in the reference electrode slot. Wire bundle electrodes are used for measurement, and the temperature of the test electrodes at different positions changes uniformly. The electrodes at different temperatures are measured at the same time, and the real-time changes of the current potential on the electrode surface at each temperature are obtained.
Description
Technical field
The present invention relates to corrosion condition measuring device technical fields inside oil gas waterpipe, match more specifically to one kind
The method closed the circulation solution electrolytic cell device of wire beam electrode and carry out potential test using it.
Background technique
Currently, there is some difference for each pipeline section duty status, including temperature since transportation range is longer inside oil gas waterpipe
Degree, humidity, force-bearing situation etc., wherein temperature change it is uneven, and under different temperatures pipeline internal medium and steel material pipe
The reaction condition that road occurs is different, and the method generallyd use is exactly to carry out individually surveying material and analysis to different temperature, finally
It is arranged and is summarized, but such method consumes too many man power and material, and the numerical value measured can not yet
True corrosion condition inside actual reaction oil gas waterpipe.
Summary of the invention
The present invention overcomes deficiencies in the prior art, provide a kind of circulation solution electrolytic cell dress for cooperating wire beam electrode
It sets and using the method that it carries out potential test, is measured using wire beam electrode, the temperature of the test electrode at different location
In the presence of uniform variation, every electrode temperature is different from, and the electrode at a temperature of different is carried out while being measured, is obtained each
The real-time change of the current level of temperature lower electrode surface.
The purpose of the present invention is achieved by following technical proposals.
A kind of circulation solution electrolytic cell device cooperating wire beam electrode, including cooling water tank, electrolyte thermostatic water bath, cooling
Thermostatic water bath, hot channel, test electrode, reference electrode and infrared radiation thermometer, the electrolyte thermostatic water bath pass through electrolyte
Pipeline is connected with the hot channel entrance of the hot channel, and the cooling thermostatic water bath passes through temperature lowering water pipeline and temperature lowering water
Slot water inlet is connected with the cooling water tank, and the other side of the cooling water tank is provided with cooling water tank water outlet, described
Cooling water tank water outlet is oppositely arranged with the cooling water tank water inlet, and the cooling water tank is arranged in the infrared radiation thermometer
On inner wall, the hot channel is coiled in the cooling water tank, and test electricity is offered on the horizontal part of the hot channel
Pole slot, the test electrode are inserted in the test electrode slot, are opened up in the hot channel inlet of the hot channel
There are reference electrode slots, the reference electrode is inserted in the reference electrode slots.
Test electrode slot quantity on the horizontal part of each hot channel is 90-110, preferably 100.
The diameter of the test electrode slot is 2-5mm, preferably 3mm.
The diameter of the reference electrode slots is 3-5mm, preferably 4mm.
The diameter of the test electrode is 2-3mm, preferably 2.5mm, length 25-35mm, preferably 30mm.
The bottom surface of the test electrode uses diameter for 2-3mm, and preferably the disc of 2.5mm is test surfaces, in addition to test surfaces
The test electrode sealed by epoxy resin and coated with heat-shrink tube, prevent from occurring with the medium in hot channel anti-
It answers, influences measurement result.
The internal diameter of the hot channel is 4-6mm, preferably 5mm.
The diameter of the cooling water tank water outlet and the cooling water tank water inlet is 4-6mm, preferably 5mm.
Cooling liquid in the cooling thermostatic water bath is alcohol water blend.
It, will using the method for corrosion potential variation inside the circulation solution electrolytic cell device test pipeline of cooperation wire beam electrode
After above-mentioned apparatus installs, then the signal acquisition contact for testing electrode and reference electrode is connected with electro-chemical measuring apparatus, to
It is passed through high-temperature electrolyte in hot channel, and is passed through alcohol water blend into cooling water tank simultaneously, measures drop to infrared radiation thermometer
When warm water tank internal temperature tends towards stability, electro-chemical measuring apparatus is opened, carries out real-time measurement, wherein when potential measurement,
Single test electrode nx (x=1-110) to be measured and reference electrode are formed into circuit, can scan to obtain entire simulation pipeline
Single test electrode to be measured when current measurement, is shorted to the reverse side of zero resistance galvanometer by the Potential distribution of system, remaining
Electrode ground connection is tested, single test electrode is obtained between remaining test electrode and couples electric current, successively switch tow, scan
Current distribution is obtained, after to be tested, whole test electrodes is mutually shorted and is grounded.
The invention has the benefit that submarine pipeline actually be on active service during, due to local environment complexity, pipeline section temperature
Unevenness, there are certain temperature gradients, but since length of pipe section is too long, and temperature change is slow, it is desirable to while measuring pipeline section
Each position corrosion condition, surface current potential change become unrealistic, and the present apparatus provides one kind in laboratory with double constant temperature
The method that the setting of sink carries out temperature gradient setting, both saves space, decreases workload, and can intuitively measure
Under certain temperature gradient, the variation of each pipeline section corrosion condition of metal pipe material.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of hot channel in the present invention；
Fig. 2 is the structural schematic diagram of cooling water tank in the present invention；
Fig. 3 is overall structure diagram of the invention；
Fig. 4 is the electrode surface current potential variation with temperature that the present apparatus measures after 1h；
Fig. 5 is the electrode surface current potential variation with temperature that the present apparatus measures after 3h；
In figure: 1 is cooling water tank, and 2 be electrolyte thermostatic water bath, and 3 be cooling thermostatic water bath, and 4 be hot channel, and 5 be survey
Electrode slot is tried, 6 be reference electrode slots, and 7 be cooling water tank water outlet, and 8 be cooling water tank water inlet, and 9 be sink control valve,
10 be electrolysis liquid pipeline, and 11 be temperature lowering water pipeline, and 12 be hot channel entrance, and 13 export for hot channel, and 14 be infrared measurement of temperature
Instrument.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific embodiment
Below by specific embodiment, further description of the technical solution of the present invention.
Embodiment one
A kind of circulation solution electrolytic cell device cooperating wire beam electrode, including cooling water tank 1, electrolyte thermostatic water bath 2, drop
Warm thermostatic water bath 3, hot channel 4, test electrode, reference electrode and infrared radiation thermometer 14, electrolyte thermostatic water bath 2 pass through electrolysis
Liquid pipeline 10 is connected with the hot channel entrance 12 of hot channel 4, and cooling thermostatic water bath 3 passes through temperature lowering water pipeline 11 and cooling
Sink water inlet 8 is connected with cooling water tank 1, and the other side of cooling water tank 1 is provided with cooling water tank water outlet 7, temperature lowering water
Slot water outlet 7 is oppositely arranged with cooling water tank water inlet 8, and infrared radiation thermometer 14 is arranged on the inner wall of cooling water tank 1, heat-dissipating pipe
Road 4 is coiled in cooling water tank 1, and test electrode slot 5 is offered on the horizontal part of hot channel 4, and test electrode is inserted in survey
It tries to offer reference electrode slots 6 at the hot channel entrance 12 of hot channel 4, reference electrode is inserted in ginseng in electrode slot 5
Than in electrode slot 6；Testing the quantity on the horizontal part of each hot channel 4 of electrode slot 5 is 90-110, preferably 100；
The diameter for testing electrode slot 5 is 2-5mm, preferably 3mm；The diameter of reference electrode slots 6 is 3-5mm, preferably 4mm, and is used
Sealant is sealed, and prevents leakage；Test the diameter of electrode for 2-3mm, preferably 2.5mm, length 25-35mm, preferably
30mm；The bottom surface of test electrode uses diameter for 2-3mm, and preferably the disc of 2.5mm is test surfaces, the test electricity in addition to test surfaces
Pole is sealed by epoxy resin and is coated with heat-shrink tube, prevents from reacting with the medium in hot channel 1, influences measurement knot
Fruit；The internal diameter of hot channel 1 is 4-6mm, preferably 5mm；The diameter of cooling water tank water outlet 7 and cooling water tank water inlet 8 is 4-
6mm, preferably 5mm；The cooling liquid to cool down in thermostatic water bath 3 is alcohol water blend.
Embodiment two
It, will using the method for corrosion potential variation inside the circulation solution electrolytic cell device test pipeline of cooperation wire beam electrode
After above-mentioned apparatus installs, then the signal acquisition contact for testing electrode and reference electrode is connected with electro-chemical measuring apparatus, to
It is passed through high-temperature electrolyte in hot channel, and is passed through alcohol water blend into cooling water tank simultaneously, measures drop to infrared radiation thermometer
When warm water tank internal temperature tends towards stability, electro-chemical measuring apparatus is opened, carries out real-time measurement, wherein when potential measurement,
Single test electrode nx (x=1-110) to be measured and reference electrode are formed into circuit, can scan to obtain entire simulation pipeline
Single test electrode to be measured when current measurement, is shorted to the reverse side of zero resistance galvanometer by the Potential distribution of system, remaining
Electrode ground connection is tested, single test electrode is obtained between remaining test electrode and couples electric current, successively switch tow, scan
Current distribution is obtained, after to be tested, whole test electrodes is mutually shorted and is grounded.
As shown in Figure 4, Figure 5, as the temperature increases, electrode surface current potential shows downward trend, electrode surface
Current value shows increased trend, i.e. the increase of temperature has facilitation to the corrosion of X65 pipe line steel.And with temperature
Increase, the negative electric current of electrode surface is reduced, and is largely changed into positive value, and increase as temperature increases.Corrosion initial stage is rotten
The inhomogeneities of erosion is very big, and the fluctuation of Current Voltage value is very big, when tested between when increasing to 4-5h, the variation of current level value becomes
In gentle, surface corrosion is stablized, and shows uniform corrosion rate.
The spatially relative terms such as "upper", "lower", "left", "right" have been used in embodiment for ease of explanation, have been used for
Relationship of the elements or features relative to another elements or features shown in explanatory diagram.It should be understood that in addition to figure
Shown in except orientation, spatial terminology is intended to include the different direction of device in use or operation.For example, if in figure
Device be squeezed, the element for being stated as being located at other elements or feature "lower" will be located into other elements or feature "upper".
Therefore, exemplary term "lower" may include both upper and lower orientation.Device, which can be positioned in other ways, (to be rotated by 90 ° or position
In other orientation), it can be interpreted accordingly used herein of the opposite explanation in space.
Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or
Sequentially.
It describes the invention in detail, but content is only the preferred embodiment of the present invention, cannot be recognized above
For for limiting practical range of the invention.Any changes and modifications in accordance with the scope of the present application should all still return
Belong within patent covering scope of the invention.
Claims (10)
1. a kind of circulation solution electrolytic cell device for cooperating wire beam electrode, it is characterised in that: including cooling water tank, electrolyte constant temperature
Sink, cooling thermostatic water bath, hot channel, test electrode, reference electrode and infrared radiation thermometer, the electrolyte thermostatic water bath are logical
It crosses electrolysis liquid pipeline to be connected with the hot channel entrance of the hot channel, the cooling thermostatic water bath passes through temperature lowering water pipeline
It is connected with cooling water tank water inlet with the cooling water tank, the other side of the cooling water tank is provided with cooling water tank water outlet
Mouthful, the cooling water tank water outlet is oppositely arranged with the cooling water tank water inlet, and the infrared radiation thermometer is arranged in the drop
On the inner wall of warm water tank, the hot channel is coiled in the cooling water tank, is opened up on the horizontal part of the hot channel
There is test electrode slot, the test electrode is inserted in the test electrode slot, enters in the hot channel of the hot channel
Reference electrode slots are offered at mouthful, the reference electrode is inserted in the reference electrode slots.
2. a kind of circulation solution electrolytic cell device for cooperating wire beam electrode according to claim 1, it is characterised in that: described
Testing electrode slot quantity on the horizontal part of each hot channel is 90-110, preferably 100.
3. a kind of circulation solution electrolytic cell device for cooperating wire beam electrode according to claim 1, it is characterised in that: described
The diameter for testing electrode slot is 2-5mm, preferably 3mm.
4. a kind of circulation solution electrolytic cell device for cooperating wire beam electrode according to claim 1, it is characterised in that: described
The diameter of reference electrode slots is 3-5mm, preferably 4mm.
5. a kind of circulation solution electrolytic cell device for cooperating wire beam electrode according to claim 1, it is characterised in that: described
The diameter for testing electrode is 2-3mm, preferably 2.5mm, length 25-35mm, preferably 30mm.
6. a kind of circulation solution electrolytic cell device for cooperating wire beam electrode according to claim 1, it is characterised in that: described
The bottom surface of test electrode uses diameter for 2-3mm, and preferably the disc of 2.5mm is test surfaces, the test electricity in addition to test surfaces
Pole is sealed by epoxy resin and is coated with heat-shrink tube.
7. a kind of circulation solution electrolytic cell device for cooperating wire beam electrode according to claim 1, it is characterised in that: described
The internal diameter of hot channel is 4-6mm, preferably 5mm.
8. a kind of circulation solution electrolytic cell device for cooperating wire beam electrode according to claim 1, it is characterised in that: described
The diameter of cooling water tank water outlet and the cooling water tank water inlet is 4-6mm, preferably 5mm.
9. a kind of circulation solution electrolytic cell device for cooperating wire beam electrode according to claim 1, it is characterised in that: described
The cooling liquid to cool down in thermostatic water bath is alcohol water blend.
10. inside the circulation solution electrolytic cell device test pipeline using any cooperation wire beam electrode of claim 1-9
The method of corrosion potential variation, it is characterised in that: after above-mentioned apparatus is installed, then the signal that electrode and reference electrode will be tested
Acquisition contact is connected with electro-chemical measuring apparatus, and high-temperature electrolyte is passed through into hot channel, and leads to simultaneously into cooling water tank
Enter alcohol water blend, when measuring cooling water tank internal temperature to infrared radiation thermometer and tend towards stability, opens electrochemical measurement dress
It sets, carries out real-time measurement, wherein when potential measurement, by single test electrode nx (x=1-110) to be measured and reference electrode
Form circuit, can scan to obtain the Potential distribution of entire simulation pipeline system, when current measurement, will single test to be measured it is electric
The extremely short reverse side for being connected to zero resistance galvanometer, remaining test electrode ground connection obtain single test electrode with remaining test electricity
Electric current is coupled between pole, successively switches tow, scanning obtains current distribution, after to be tested, by whole test electrodes
It is mutually shorted and is grounded.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301150.0A CN109444038A (en) | 2018-11-02 | 2018-11-02 | A method of cooperating the circulation solution electrolytic cell device of wire beam electrode and it is utilized to carry out potential test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301150.0A CN109444038A (en) | 2018-11-02 | 2018-11-02 | A method of cooperating the circulation solution electrolytic cell device of wire beam electrode and it is utilized to carry out potential test |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02302495A (en) * | 1989-04-28 | 1990-12-14 | Nalco Chem Co | Overhead corrosion simulator |
| JPH08271404A (en) * | 1995-03-29 | 1996-10-18 | Kurita Water Ind Ltd | Distillation tower overhead system corrosion monitoring device |
| US6132593A (en) * | 1998-06-08 | 2000-10-17 | Tan; Yong-Jun | Method and apparatus for measuring localized corrosion and other heterogeneous electrochemical processes |
| DE102004027792A1 (en) * | 2004-06-08 | 2006-01-05 | Basf Ag | Coated metallic sheet corrosion test executing device, has temperature controlled cooling plate designed for admission of sample, which is to be tested, where sample is positioned between cooling plate and hearing device |
| CN104359827A (en) * | 2014-11-27 | 2015-02-18 | 上海化工研究院 | Environment testing box for simulating seriously-polluted atmosphere |
| CN107860707A (en) * | 2017-11-15 | 2018-03-30 | 上海大学 | The heteropical method of aluminum alloy surface microcell galvanic corrosion is characterized using wire beam electrode |
| CN209416889U (en) * | 2018-11-02 | 2019-09-20 | 天津大学 | A circulating solution electrolytic cell device with wire bundle electrodes |
-
2018
- 2018-11-02 CN CN201811301150.0A patent/CN109444038A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02302495A (en) * | 1989-04-28 | 1990-12-14 | Nalco Chem Co | Overhead corrosion simulator |
| JPH08271404A (en) * | 1995-03-29 | 1996-10-18 | Kurita Water Ind Ltd | Distillation tower overhead system corrosion monitoring device |
| US6132593A (en) * | 1998-06-08 | 2000-10-17 | Tan; Yong-Jun | Method and apparatus for measuring localized corrosion and other heterogeneous electrochemical processes |
| DE102004027792A1 (en) * | 2004-06-08 | 2006-01-05 | Basf Ag | Coated metallic sheet corrosion test executing device, has temperature controlled cooling plate designed for admission of sample, which is to be tested, where sample is positioned between cooling plate and hearing device |
| CN104359827A (en) * | 2014-11-27 | 2015-02-18 | 上海化工研究院 | Environment testing box for simulating seriously-polluted atmosphere |
| CN107860707A (en) * | 2017-11-15 | 2018-03-30 | 上海大学 | The heteropical method of aluminum alloy surface microcell galvanic corrosion is characterized using wire beam electrode |
| CN209416889U (en) * | 2018-11-02 | 2019-09-20 | 天津大学 | A circulating solution electrolytic cell device with wire bundle electrodes |
Non-Patent Citations (3)
| Title |
|---|
| CHEN CHUAN等: "Correlation of temperature with galvanic corrosion behaviour of copper alloys based on wire beam electrode", 《CORROSION ENGINEERING, SCIENCE AND TECHNOLOGY》, vol. 53, no. 5, pages 331 - 339 * |
| TAN YONGJUN等: "Electrochemical evaluation of under-deposit corrosion and its inhibition using the wire beam electrode method", 《CORROSION SCIENCE》, vol. 53, pages 1254 - 1261, XP028153318, DOI: 10.1016/j.corsci.2010.12.015 * |
| 吴志英等: "温度梯度下高分子涂层的腐蚀行为", 《中国腐蚀与防护学报》, vol. 8, no. 3, pages 253 - 257 * |
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Application publication date: 20190308 |