CN2741038Y - Corrosion tester of fluid media - Google Patents
Corrosion tester of fluid media Download PDFInfo
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- CN2741038Y CN2741038Y CN 200420098812 CN200420098812U CN2741038Y CN 2741038 Y CN2741038 Y CN 2741038Y CN 200420098812 CN200420098812 CN 200420098812 CN 200420098812 U CN200420098812 U CN 200420098812U CN 2741038 Y CN2741038 Y CN 2741038Y
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Abstract
The utility model relates to a corrosion tester of fluid media, which comprises a container made by anticorrosive material with charge and discharge tube openings of fluid media, a gas input tube opening arranged on this container and electrochemical supporting facilities. The media layer in the container is at least provided with two groups of researching electrode assemblies which comprise plate-like electrodes contacted with the fluid media on the testing surface, waterproof washers, columnar copper conductors, plexiglass conducting pipes, copper conductors with springs, water-proof shims and back pressure cap nuts. The columnar copper conductors and the conducting wires are insulatively extended out of the container. The tester not only can be convenient for proceeding electrochemical test, but also can carry out the surface inspection for microorganism and other characterization tests. The users can easily take out the researching electrode assemblies for other tests at any time on the premise of not affecting the test proceeding. The utility model can carry out various electrochemical tests, such as polarization, AC impedance, electrochemical noise, etc.
Description
Technical field:
The utility model relates to the improvement of metal erosion monitoring experiment equipment, specifically is a kind of flow media corrosion experimental device.
Background technology:
As everyone knows, microbiological corrosion is an important component part in the environmental corrosion, and it is an intersection sciemtifec and technical sphere between microbiology and the corrosion science.Because of the scope of its generation is very extensive, and the economic loss of bringing is huge, enjoys corrosion scientific worker's concern.Microbiological corrosion mainly occurs in the various liquid environments, as the various metallic facilities surface in the industrial condensing water conduit, in sewage treatment plant, rivers and lakes and the briny environment.Exist a large amount of microorganisms in these environment, they at first adhere at material surface, if environmental baseline is fit to, these microorganisms just begin continuous metabolism breeding, secrete a large amount of exocytosis things (EPS) simultaneously.Material surface forms with EPS these exocytosis things is skeleton, various microbial profile one deck microbial film wherein with firm the sticking to of microorganism.This layer microbial film can change the physical environment and the chemical environment of microbial film/metal surface in the part, thereby brings out the generation of metal surface local corrosion.The field that microbiological corrosion takes place is very extensive, can there be microbiological corrosion to take place as the condensate system in power plant and other industrial systems, sewage treatment plant, drilling platform, oil pipeline etc., the economic loss of bringing thus is huge, and causes people's attention gradually.In microbiological corrosion research, desk research is the important channel that obtains related microorganism corrosion particulars.In desk research, utilize different investigative techniques can obtain the one-tenth grading information of microbial film forming process, microbiological corrosion generation characteristic of development, corrosion product.What use in desk research is the common research electrode that often uses in the electrochemical research, that is, and and the metal electrode of in plastic tube, sealing with epoxy resin.These technology have a lot of limitation in microbiological corrosion research, integrated following some:
1) do not have unified research electrode: electrode used therein is the same with common electrical chemical experiment electrode used therein in microbiological corrosion research usually, make cylindric required research material or cube, be enclosed in the plastic tube with epoxy resin, only expose a workplace, another side and copper conductor weld together, and are enclosed in the epoxy resin.This research electrode function is single, can only carry out electrochemistry experiment, can not or be not easy to carry out the observation of electrode surface microorganism usually, yet the surface observation of microorganism is a very important research means in the microbiological corrosion research.
2) do not have unified research electrolytic cell: common electrolytic cell is the device that carries out electrochemistry experiment.This electrochemical cell has the standard device, and for example: classical three electrode glass electrolytic cells, it has three mouths to insert respectively: be enclosed in the research electrode that also only exposes a workplace in the plastic tube with epoxy resin, to electrode and contrast electrode.This three electrode position is fixed, and can not adjust, and can not change.This class electrolytic cell generally also has gas and imports and exports mouth etc.Before carrying out microbiological corrosion experiment during the installation electrolytic cell, the selection of material and the randomness of container shapes are very big like this, also are unfavorable for repeated experiments.If when experiment was carried out under anaerobic environment, not only the leakproofness of this electrolytic cell was difficult for reaching installation requirement, and experimental implementation is also inconvenient.
Summary of the invention:
The purpose of this utility model is to provide a kind of novel flow media corrosion experimental device, and it both had been convenient to carry out electrochemistry experiment, can carry out surface observation and other sign experiments of microorganism again.This corrosion experimental device can take out electrode at any time, easily and carry out other experiments (observing as microorganism) and the new electrode of update contruction.
The purpose of this utility model is finished by following technical scheme, developed a kind of flow media corrosion experimental device, it is to be provided with that flow media injects and to discharge the container that the anti-corrosion material of the mouth of pipe is made, be arranged on this container the gas inlet pipe mouth and by contrast electrode and the galvanochemistry auxiliary facility that electrode is formed.Dielectric layer place in this container is provided with the above research electrode assemblies of at least two groups, the pellet electrode test surfaces contact flow dielectric layer of this electrode assemblies, and the column copper conductor and the wire insulation ground thereof of this electrode assemblies stretch out outside this container.
Described container, itself or be cuboid, or be horizontal or the vertical type cylinder body; On this container top wall above all this electrode assemblies, be provided with and the corresponding galvanochemistry auxiliary facility of this electrode assemblies number mounting hole.
Described container, its top wall also are provided with the metallic filter of carrying aseptic gas.
Described container, its flow media inject and discharge the pump power cycling mechanism that forced medium flows also is set on the mouth of pipe.
Described research electrode assemblies, it comprises: the pellet electrode of test surfaces contact flow dielectric layer, this pellet electrode is installed on the wall at this container middle part by waterproof washer, with the column copper conductor that another bottom surface of this pellet electrode closely contacts, this copper conductor fuses by copper conductor, waterproof gasket and back pressure nut and this pellet electrode of organic glass conduit, band spring.
Described research electrode assemblies, its be arranged on this galvanochemistry auxiliary facility near, and with the platinum electrode suitable distance apart to electrode of this galvanochemistry auxiliary facility be 40--50mm, gold capillary tubule tip, the Shandong of contrast electrode is 1--3mm near the test surfaces surface suitable distance apart of pellet electrode.
The utlity model has following advantage:, and be connected as a single entity with the galvanochemistry auxiliary facility because the utility model is that research electrode assemblies and corrosion experimental device are combined.The research electrode assemblies both had been convenient to carry out electrochemistry experiment like this, can carry out surface observation and other sign experiments of microorganism again.Can take out the research electrode assemblies at any time, easily under the experiment prerequisite of carrying out and carry out other experiments not influencing, for example the recent studies on electrode assemblies is observed and installed to microbiology: as long as the dielectric layer liquid level in will install is reduced to below the pellet electrode promptly detachable and installation recent studies on electrode assemblies.The utility model also is fit to the cultivation of microorganism: can under static and flox condition, carry out the cultivation of microorganism respectively, and the activity that the amount that adds by nutrient culture media and the time interval are controlled microorganism in the nutrient culture media, and can form certain microbial film.The utility model can carry out the microbiological corrosion experiment to different materials, a plurality of electrode simultaneously.The utility model can be at dynamic and static condition and multiple liquid environment, as experimentizing in seawater, fresh water and the nutrient culture media.In addition, corrosion experimental device of the present utility model can be airtight, can carry out the anaerobe experiment under nitrogen environment.The utility model can carry out the electrochemical in-situ experiment: electrode used therein can carry out multiple electrochemistry experiment in this corrosion experimental device, as polarization, AC impedance, electrochemistry noise etc.
Accompanying drawing and embodiment:
Fig. 1 is horizontal flow media corrosion experimental device structural front view.
Fig. 2 is horizontal flow media corrosion experimental device structure side view.
Fig. 3 is the structure cut-open view of research electrode assemblies.
Fig. 4 is a galvanochemistry auxiliary facility structural front view.
Referring to Fig. 1--4, the flow media corrosion experimental device of the engineering plastics system of making, it injects and the discharge mouth of pipe 2 for being provided with flow media, the container 1 that 7 anti-corrosion material is made, be arranged on this container 1 gas inlet pipe mouth 6 and by the Shandong of contrast electrode gold capillary tubule 11 and the galvanochemistry auxiliary facility 3 that the platinum electrode 12 of electrode is formed.Dielectric layer place in this container 1 is provided with the above research electrode assemblies 5 of at least two groups, the pellet electrode 18 test surfaces contact flow dielectric layers of this electrode assemblies 5, and the column copper conductor 14 of this electrode assemblies 5 and lead 10 insulation ground thereof stretch out outside this container 1.
Described container 1, itself or be cuboid, or be horizontal or the vertical type cylinder body; On this container 1 top wall above all this electrode assemblies 5, be provided with and the corresponding galvanochemistry auxiliary facility of this electrode assemblies 5 numbers mounting hole 4 (the time spent does not screw with lid).
Described container 1, its top wall also be provided with the metallic filter 6 of carrying aseptic gas '.
Described container 1, its flow media inject and discharge the pump power cycling mechanism 8,9 that forced medium flows also is set on the mouth of pipe 2,7.
Described research electrode assemblies 5, it comprises: the pellet electrode 18 of test surfaces contact flow dielectric layer, this pellet electrode 18 is installed on the wall at this container 1 middle part by waterproof washer 19, with the column copper conductor 20 that another bottom surface of this pellet electrode 18 closely contacts, this copper conductor 20 fuses with this pellet electrode 18 by copper conductor 16, waterproof gasket 17 and the back pressure nut 20 of organic glass conduit 15, band spring.
Described research electrode assemblies 5, its be arranged on this galvanochemistry auxiliary facility 3 near, and with the platinum electrode 12 suitable distance apart to electrode of this galvanochemistry auxiliary facility 3 be 40--50mm, gold capillary tubule 11 tips, the Shandong of contrast electrode are 1--3mm near the test surfaces surface suitable distance apart of pellet electrode 18.
Embodiment 1: the Luggin capillary 11 of this flow media corrosion experimental device is to be used for installing contrast electrode, the tip of this capillary tubule 11 can be near pellet electrode 18 surfaces, like this can be when electrochemistry experiment, solution resistance between contrast electrode and the pellet electrode 18 is reduced, thereby reduce some big electric current experiment, the error during as polarization experiment.Platinum electrode 12 be electrochemistry experiment to electrode, be used for and pellet electrode 18 constitutes loops, normally over against pellet electrode 18, both 4--5CM of being separated by.By pellet electrode 18, contrast electrode and platinum electrode 12 have constituted the three-electrode electro Chemical system, use this individual system can carry out most electrochemistry experiments.When test medium was seawater or fresh water, medium advanced from medium inlet 2, went out from media outlet 7.When test medium was nutrient culture media, it injected flow device from medium inlet 2, introduces the microorganism of required research simultaneously.Nutrient culture media generally recycles, so nutrient culture media is under the effect of ebullator 9, circulate in flow device through circulation pipe 8, treat that microbial reproduction stops circulation when its composition changes after a period of time, outward winding and export 7 lid, make it flow out a part, inject new nutrient culture media from medium inlet 2 then, recirculation flow continues experiment.Before the experiment, experimental needs, select the electrode of different materials and quantity to experimentize: with waterproof gasket 19, sheet research electrode 18, waterproof gasket 17, cylindric copper conductor 14, electrode cap 20 installs successively, and the perspex bar 15 that will include spring-like copper conductor 16 then screws in the electrode cap 20, install the back and put into galvanochemistry auxiliary facility 3 in corresponding position, it is made up of the Luggin capillary 11 and the platinum electrode 12 that insert plug 13.After treating that test medium is full of flow device, allow electrode system stablize a period of time can begin the experiment.If the experiment be in anaerobic environment, to carry out, nitrogen tube can be connected gas metallic filter 6 ' on, nitrogen injection, this moment other all openings all to screw with lid, with anti-gas-leak.
Embodiment 2: further specify for example with microbiological corrosion experiment (flow is that microbial adhesion is to the influence of 316L stainless steel material ac impedance spectroscopy in 2 liters/hour the natural sea-water).The pellet electrode 18, waterproof gasket 17, cylindric copper conductor 14, the electrode cap 20 that before the experiment waterproof gasket 19, polishing are cleaned up and sterilize, the plexi-glass tubular 15 that includes the copper conductor 16 of band spring installs successively puts into flow device matrix case 1, screws.Seawater is imported from import 2, close circulation pipe 8, treat to open media outlet 7 after seawater reach a certain height, regulate seawater flow and make it reach 2 liters/hour.The pellet electrode 18 of this experiment is four, and the polarization scope is 10 millivolts, frequency range 10 millihertzs now-105 hertz, SI 1287 potentiostat (EG﹠amp are used in the measurement of ac impedance spectroscopy; G company makes) and SI1260 frequency response analyzer (EG﹠amp; G company makes), saturated calomel electrode is a contrast electrode, platinum electrode 12 is to electrode.Be one month experimental period, and in first week, every day, each electrode was respectively surveyed once, and each electrode was surveyed once in per three days later on.Experiment finishes the back and takes out electrode 18, with aseptic seawater flushing clean after, four pellet electrodes 18 can carry out the microorganism observation at microscopically after dyeing, and the relation of surface microorganism quantity and state and ac impedance spectroscopy more separately.Microorganism microexamination device adopts BH-2 type Olympus microscope and BH2-RFL filter set, BP490 excitationfilter, and EY455supplementary exciter filter, relevant annexes such as O515barrier filter carry out.After observation finishes pellet electrode 18 taken out and clean that to put into exsiccator standby.
Those of ordinary skill in the art can understand, and in protection domain of the present utility model, makes amendment for the foregoing description, and it all is possible adding and replacing, and it does not all exceed protection domain of the present utility model.
Claims (6)
1, a kind of flow media corrosion experimental device, it is to be provided with the container that flow media injects and the anti-corrosion material of the discharge mouth of pipe is made, be arranged on this container the gas inlet pipe mouth and by contrast electrode and the galvanochemistry auxiliary facility that electrode is formed, it is characterized in that: the dielectric layer place in this container, the above research electrode assemblies of at least two groups is set, the pellet electrode test surfaces contact flow dielectric layer of this electrode assemblies, the column copper conductor and the wire insulation ground thereof of this electrode assemblies stretch out outside this container.
2, according to the described flow media corrosion experimental device of claim 1, it is characterized in that: described container, itself or be cuboid, or be horizontal or the vertical type cylinder body; On this container top wall above all this electrode assemblies, be provided with and the corresponding galvanochemistry auxiliary facility of this electrode assemblies number mounting hole.
3, according to the described flow media corrosion experimental device of claim 1, it is characterized in that: described container, its top wall also are provided with the metallic filter of carrying aseptic gas.
4, according to the described flow media corrosion experimental device of claim 1, it is characterized in that: described container, its flow media inject and discharge the pump power cycling mechanism that forced medium flows also is set on the mouth of pipe.
5, according to the described flow media corrosion experimental device of claim 1, it is characterized in that: described research electrode assemblies, it comprises: the pellet electrode of test surfaces contact flow dielectric layer, this pellet electrode is installed on the wall at this container middle part by waterproof washer, with the column copper conductor that another bottom surface of this pellet electrode closely contacts, this copper conductor fuses by copper conductor, waterproof gasket and back pressure nut and this pellet electrode of organic glass conduit, band spring.
6, according to the described flow media corrosion experimental device of claim 1, it is characterized in that: described research electrode assemblies, its be arranged on this galvanochemistry auxiliary facility near, and with this galvanochemistry auxiliary facility be 40--50mm to electrode suitable distance apart, the tip of Shandong gold capillary tubule is 1--3mm near the test surfaces surface suitable distance apart of pellet electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420098812 CN2741038Y (en) | 2004-11-13 | 2004-11-13 | Corrosion tester of fluid media |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420098812 CN2741038Y (en) | 2004-11-13 | 2004-11-13 | Corrosion tester of fluid media |
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| CN2741038Y true CN2741038Y (en) | 2005-11-16 |
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| CN 200420098812 Expired - Fee Related CN2741038Y (en) | 2004-11-13 | 2004-11-13 | Corrosion tester of fluid media |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590298A (en) * | 2012-01-20 | 2012-07-18 | 中国科学院金属研究所 | Method for testing microbiological corrosion resisting performance of antibacterial stainless steel by electrochemical method |
| CN104568733A (en) * | 2015-01-14 | 2015-04-29 | 天津大学 | Metal-corrosion electrochemical experimental device in flowing-corrosion medium |
| CN104568734A (en) * | 2015-01-14 | 2015-04-29 | 天津大学 | System for monitoring metal corrosion behaviors in flowing corrosive medium |
| CN104266853B (en) * | 2014-08-07 | 2016-09-21 | 哈尔滨电机厂有限责任公司 | A kind of tubular turbine erosion model test method |
| CN106290139A (en) * | 2016-09-27 | 2017-01-04 | 天津大学 | Concrete erosion electrochemical experimental device in Flow Corrosion medium |
| CN106568704A (en) * | 2016-11-16 | 2017-04-19 | 双登集团股份有限公司 | Simulated measuring device for corrosion rate of pole plate of lead-acid storage battery |
| CN107449730A (en) * | 2017-08-28 | 2017-12-08 | 天津大学 | 90 ° of elbow metal erosion electrochemical testing devices in a kind of Flow Corrosion medium |
| CN107727564A (en) * | 2017-10-24 | 2018-02-23 | 天津大学 | The electrochemical testing device of metal microbiologic(al) corrosion under current system |
| CN107764720A (en) * | 2017-11-24 | 2018-03-06 | 安徽枫雅轩科技信息服务有限公司 | A kind of traffic water-proof and anti-corrosive material detection means |
-
2004
- 2004-11-13 CN CN 200420098812 patent/CN2741038Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590298A (en) * | 2012-01-20 | 2012-07-18 | 中国科学院金属研究所 | Method for testing microbiological corrosion resisting performance of antibacterial stainless steel by electrochemical method |
| CN102590298B (en) * | 2012-01-20 | 2014-05-14 | 中国科学院金属研究所 | Method for testing microbiological corrosion resisting performance of antibacterial stainless steel by electrochemical method |
| CN104266853B (en) * | 2014-08-07 | 2016-09-21 | 哈尔滨电机厂有限责任公司 | A kind of tubular turbine erosion model test method |
| CN104568733A (en) * | 2015-01-14 | 2015-04-29 | 天津大学 | Metal-corrosion electrochemical experimental device in flowing-corrosion medium |
| CN104568734A (en) * | 2015-01-14 | 2015-04-29 | 天津大学 | System for monitoring metal corrosion behaviors in flowing corrosive medium |
| CN104568734B (en) * | 2015-01-14 | 2017-06-27 | 天津大学 | Metal erosion behavior monitoring system in Flow Corrosion medium |
| CN106290139A (en) * | 2016-09-27 | 2017-01-04 | 天津大学 | Concrete erosion electrochemical experimental device in Flow Corrosion medium |
| CN106568704A (en) * | 2016-11-16 | 2017-04-19 | 双登集团股份有限公司 | Simulated measuring device for corrosion rate of pole plate of lead-acid storage battery |
| CN107449730A (en) * | 2017-08-28 | 2017-12-08 | 天津大学 | 90 ° of elbow metal erosion electrochemical testing devices in a kind of Flow Corrosion medium |
| CN107449730B (en) * | 2017-08-28 | 2023-08-25 | 天津大学 | Electrochemical testing device for corrosion of 90-degree elbow metal in flowing corrosive medium |
| CN107727564A (en) * | 2017-10-24 | 2018-02-23 | 天津大学 | The electrochemical testing device of metal microbiologic(al) corrosion under current system |
| CN107764720A (en) * | 2017-11-24 | 2018-03-06 | 安徽枫雅轩科技信息服务有限公司 | A kind of traffic water-proof and anti-corrosive material detection means |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |