CN207007674U - A kind of Multifunctional corrosion experimental apparatus for testing - Google Patents
A kind of Multifunctional corrosion experimental apparatus for testing Download PDFInfo
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- CN207007674U CN207007674U CN201720911882.6U CN201720911882U CN207007674U CN 207007674 U CN207007674 U CN 207007674U CN 201720911882 U CN201720911882 U CN 201720911882U CN 207007674 U CN207007674 U CN 207007674U
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Abstract
A kind of Multifunctional corrosion test device, belongs to corrosion measurement field.Mainly it is made up of pipe-line system, fluoroplastics acid and alkali-resistance anticorrosion pump, Multifunctional corrosion testing experiment section one, Multifunctional corrosion testing experiment section two, Flow-rate adjustment bypass, device for storing liquid, temperature control heating device, is also equipped with corresponding acid and alkali-resistance pressure gauge, digital display thermometer, acid and alkali-resistance electromagnetic flowmeter etc. in addition.Maximum stream flow, which is provided, by fluorine plastic corrosion-proof erosion pump is not less than 2m3/ h sodium hydrate aqueous solution, the experimental solutions flow of electrochemical test section are adjusted by flanged ball valve.Can be by the arbitrary temp of the temperature adjustment of the experimental solutions liquid in device to room temperature to 90 DEG C by electric heating cover.The working electrode intermediate plate of test section one and two can be changed, and injection shower nozzle can be changed.Experiment is finished, and experimental solutions can be emptied completely by atmospheric valve.The present apparatus can realize the test of the corrosion electrochemistry characteristic of the acidity and alkaline medium under different temperatures, flow velocity, concentration.
Description
Technical field
The utility model belongs to corrosion measurement field, specially a kind of Multifunctional corrosion experimental apparatus for testing.
Technical background
Metallic material corrosion is that metal material produces loss and destroyed under surrounding medium (acid, alkali etc.) effect.Metal material
Material is widely used in national economy every profession and trade, is inevitably touched the Korrosionsmediums such as acid, alkali in use and is met with
To destruction, especially chemical industry, the corrosion of metallic conduit often causes great economic loss and casualties, therefore,
The corrosion research for carrying out metal material is significant.At this stage, Flow Corrosion experiment is to be tested at normal temperatures, and
A kind of metering system needs a kind of corresponding equipment, it is therefore desirable to more multifunctional equipments, more fully to simulate metal
Working environment during material practical application, obtains parameters of electrochemical corrosion, so as to judge corrosion of metal state, and once comes true
Determine anti-corrosion mode.
Utility model content
The purpose of this utility model is to provide a kind of Multifunctional corrosion experimental apparatus for testing, can simulate heat exchanger and exchange heat
It is rotten to being measured material that working environment of the pipe in practical application, wherein test section one mainly measure different jet velocities and angle
The influence of degree of corrosion, test section two mainly measure the etch state of heat exchange tube material under various heat exchange state；The experimental provision can
To be taken out conveniently any electrode in measured metal material, integrated electrochemical part or integrated electrochemical part, it is convenient more
Experiment Metal material sample is changed, and the temperature, concentration, flow conditions of Flow Corrosion medium can be adjusted, makes metallic material corrosion
Experimental study condition is more perfect.
To achieve the above object, the utility model is achieved through the following technical solutions：
A kind of Multifunctional corrosion experimental apparatus for testing, the device are provided with test section one, experimental section two and storage tank.
Test section one includes tubbiness experimental provision, and tubbiness experimental provision side is provided with the outstanding inlet of test section one
(23), the replaceable shower nozzle (34) of installation in inlet (23), the replaceable Teflon playpipe (35) of the interior installation of shower nozzle (34),
It is fixedly connected between inlet (23), shower nozzle (34), Teflon playpipe (35) by spiral cover with polytetrafluoroethylsealed sealed fixture；Inlet
(23) relative side is provided with the taphole of test section one (32)；It is distributed with the end cap (31) of the upper surface of tubbiness experimental provision
Three electrochemical measurement holes are used for placing electrochemical electrode：First auxiliary electrode (28), the first reference electrode (26) and the first work
Make electrode (27), the upper three electrochemical measurement holes of end cap (31) are provided with cock, each cock center by hole internal thread respectively
It is provided with electrode hole and corresponding electrochemical electrode is installed；End cap (31) upper surface in electrochemical measurement hole protrudes end cap with cock
(31) there is sealing ring between the lower surface of part, after spiral cover screws with end cap, sealing ring can be played with jam-packed electrochemical electrode
Fixation and sealing function；The end cap upper surface in electrochemical measurement hole indicates 0 °~360 ° scales, for showing or according to quarter
Angle between degree adjustment working electrode surface and jet；The working end of whole electrochemical electrode bottoms is in shower nozzle (34)
Near axis and each cock axis joining position；All electrochemical electrode other ends pass through wire and electrochemical workstation
It is connected, wherein, a loop is made up of the first working electrode (27) and reference electrode (26), for test job electrode (27)
Electrochemical reaction process, another loop are made up of the first working electrode (27) and auxiliary electrode (29), are played transmission and are electronically formed
The effect in loop, complete to carry out metal material the electro-chemical tests such as polarization scan, the accurate gold obtained during Dynamic Corrosion
Belong to corrosion condition；The taphole of test section one (32) position is higher than inlet (23) position；
It is experimental solutions device side that test section two, which is divided to for two parts, a part, and another part is water installations side；Test molten
The side of liquid device is provided with experimental solutions device liquid outlet (1), and experimental solutions device liquid outlet (1) place is provided with acid and alkali-resistance digital display
Thermometer；Relative side is provided with prominent connector with experimental solutions device liquid outlet (1)；Experimental solutions device lower end is set
There is experimental solutions device inlet (14)；It is furnished with experimental solutions device spiral cover (3) on the upper end cover (8) of experimental solutions device, revolves
Cover (3) and upper end cover (8) is provided with two connection through holes and is used to configure the second auxiliary electrode (5) and the second reference electrode (7), the
The working end of two auxiliary electrodes (5) and the second reference electrode (7) lower end is located near connector；Water installations upper end is provided with end cap,
Lower end is provided with water installations inlet (10), and side is provided with water installations outlet (9), and relative side is provided with water installations outlet (9)
Prominent connector；Pass through stainless steel fixture between the protrusion connector of experimental solutions device and the protrusion connector of water installations
(13) it is attached, is accompanied in stainless steel fixture (13) by polytetrafluoro working electrode fixture (11) replaceable with screw (12)
Second working electrode (17), the second working electrode (17) connect the protrusion connector of experimental solutions device and the prominent of water installations
Blocked between mouthful；Each electrode is connected with electrochemical workstation, and a loop is by the second working electrode (17) and the second reference electrode
(5) form, for testing the electrochemical reaction process of the second working electrode (17), another loop is by the second working electrode (17)
Formed with the second auxiliary electrode (7), play transmission and electronically form loop, complete to carry out the electricity such as polarization scan to metal material
Test chemical, the accurate metal erosion situation obtained during Dynamic Corrosion；
Further preferred second reference electrode (7) uses reference electrode salt bridge, to roll over shape structure so that the working end of lower end
Bend towards the second working electrode (17).
Working electrode fixture (11) is divided into two parts, and for convenience of describing, a part is designated as upper part, and another part is bottom
Point, the lower surface of upper part is provided with projection, provided with external screw thread, is provided with upper lower through-hole in bossing, lower part is provided with groove, interior
Portion side is provided with screw thread, and bottom portion of groove is provided with upper lower through-hole, and groove side is provided with tapped through hole (18)；Can in the groove of lower part
The second working electrode (17) is placed, upper part projection is clamped with lower part groove by screw thread and passes through polytetrafluoro seal washer
Sealed, be connected in tapped through hole (18) interior brass screw with the second working electrode (17), be connected by screw working electrode,
The connecting wire on screw, the second working electrode (17) is set to be connected by wire with electrochemical workstation；Working electrode during use
Two through holes of fixture are relative with two prominent connectors of water installations and experimental solutions device respectively.
The outlet of the water installations of test section two and inlet are connected with tank respectively by flowmeter, valve, form loop；
The Teflon playpipe (35) of test section one connects first flange ball valve with spiral cover via seal clamp, is set at first flange ball valve
There is thermometer, the inlet (14) of experimental solutions device is connected with second flange ball valve, first flange ball valve and second flange ball
Valve is connected by merging pipeline with pump, and pump is connected with storage tank, and storage tank goes out liquid by glass valve and experimental solutions device respectively
The connection of mouthful (1), the liquid outlet of test section one (32), while storage tank also passes through the auxiliary inlet of storage tank, the 3rd flanged ball valve and the
One flanged ball valve connects with the merging pipeline of second flange ball valve.Above-mentioned test section two, test section one, storage tank connecting line
In, test device, such as thermometer, flowmeter, pressure gauge can be installed as needed.
Inlet, condensate port is distributed with storage tank upper end, and lower end is provided with storage tank liquid outlet；Wherein, storage tank inlet and experiment
Section liquid outlet is tightly connected by O-shaped packing ring, snap ring；Storage tank lower end is provided with electric heating cover.
Pump is that fluorine plastic corrosion-proof loses pump, there is provided maximum stream flow is not less than 2m3/ h sodium hydrate aqueous solution, electrochemical test
The experimental solutions flow of section is adjusted by flanged ball valve.Can be by the temperature of the experimental solutions liquid in device by electric heating cover
Adjust the arbitrary temp of room temperature to 90 DEG C.The working electrode intermediate plate of test section one and two can be changed, and injection shower nozzle can be more
Change.Experiment is finished, and experimental solutions can be emptied completely by atmospheric valve.The present apparatus can be realized under different temperatures, flow velocity, concentration
The test of acid and alkaline medium corrosion electrochemistry characteristic.
The beneficial effects of the utility model are：
Three electrodes are separately designed in experimental provision with prior art difference is installed respectively for three holes, the utility model is more
Three-electrode system is reintegrated according to actual conditions, forms special part, test section by function corrosion test experimental provision
In 2, by changing reference electrode salt bridge shape, self-made clamp fixes working electrode, enables devices to more really simulate and change
Under hot device heat exchange state, the corrosion condition of measured material；Secondly, the present apparatus, which is easy to use, safeguards, device is easy to process and structure
Lightly；Provided with two sections of experimental sections, i.e., by the control of valve on this experimental provision, jet etching electrochemistry can be carried out simultaneously
Experiment and heat exchange Experiment in Erosive Electrochemistry, and do not influenceed each other during experiment, reduce manufacturing equipment expense, improve experiment effect
Rate.
The utility model Multifunctional corrosion experimental apparatus for testing is independently set in order that device more closing to reality working environment
Multiple sub-assemblies and part have been counted, including, in test section one, it in order to ensure playpipe is changed conveniently, and can ensure to seal, spray
System (19,20,21,22,34,35) is penetrated, in test section two, in order to simulate heat exchanger tube actual condition, to common three-electrode system
Transformed, working electrode is changed into diameter 20mm, thickness 5mm electrode wafer, passes through special working electrode fixture
(11) it is fixed and is connected by screwed hole 18 with electrochemical workstation, it is logical that electrode holder is divided into two parts (such as Fig. 5, Fig. 6)
Cross threaded connection, between fixture is fixed on two parts (experimental solutions side and water side) by special flange 13, flange 13 also acts as
Connect two-part effect.In order to meet three-electrode system demand (between reference electrode and working electrode can not hypertelorism) and examine
Consider convenient disassembly, special reference electrode salt bridge 7, ensure the distance between reference electrode and working electrode surface.Home-made contrivance exists
On the basis of ensureing using effect, sealing, convenient dismounting, and service life can reach requirement of experiment.
The utility model is provided with the storage tank of storage Flow Corrosion medium, and its underpart is provided with electric heating cover, and corrosion can be situated between
Matter is heated to required temperature, and acid and alkali-resistance digital display thermometer is equipped with each experimental section, therefore, can accurately control experiment temperature
Degree, simulates a variety of operating modes.Provided with two test sections, test section one is injection experiment section, can realize test medium with
Working electrode surface relative velocity can be adjusted between 4m/s-8m/s,；Test section two is heat transfer experiments section, can exchange heat pipe
Practical working situation (temperature, flow velocity, concentration of medium) of the material in heat exchanger is simulated and to its corrosion electrochemistry parameter
(corrosion electric current density, electrochemical impedance modulus value etc.) measures；The left nozzle arrangements of test section one are removed to change in difference
The injector head in footpath, and good seal.By adjust end cap above test section can change jet blower and working electrode surface it
Between angle of attack；The working electrode of test section two is fixed among experimental solutions side and water side by specially designed fixture, energy
The sealing and disk working electrode for enough realizing chucking appliance system are changed.
Brief description of the drawings
The section B-B figure of Fig. 1 Multifunctional mobile corrosion devices test section two；
The top view of Fig. 2 Multifunctional mobile corrosion devices test section two；
The Section A-A figure of Fig. 3 Multifunctional mobile corrosion devices test section two；
Fig. 4 Multifunctional mobile corrosion devices test section two makes clamping device profile by oneself
Fig. 5 Multifunctional mobile corrosion devices test section two makes clamping device top subsection by oneself
Fig. 6 Multifunctional mobile corrosion devices test section two makes clamping device bottom subsection by oneself
The section B-B figure of Fig. 7 Multifunctional mobile corrosion devices test section one；
The top view of Fig. 8 Multifunctional mobile corrosion devices test section one；
The total schematic diagram of Fig. 9 the utility model Multifunctional corrosion experimental apparatus for testing；
Reference of the present utility model is：The experimental solutions side liquid outlet of 1 test section two；2 acid and alkali-resistance digital display thermometers；3
Spiral cover；4 auxiliary electrode cocks；5 auxiliary electrodes；6 reference electrode cocks；7 reference electrodes；8 end caps；The water side outlet of 9 test section two；
The water side entrance of 10 test section two；11 self-control working electrode fixtures；12 bolts；13 self-control steel flange fixtures；14 test sections two
Experimental solutions survey inlet；15 working electrode fixture upper parts；16 working electrode fixture lower parts；17 second working electrodes；18
Fastener screwed hole；19 polytetrafluoroethylsealed sealed fixtures；20 spiral covers；21 polytetrafluoroethylsealed sealed fixtures；22 spiral covers；The experimental solutions side of 23 test section one is entered
Liquid mouth；24 spiral covers；25 cocks；26 reference electrodes；27 first working electrodes；28 cocks；29 auxiliary electrodes；30 cocks；31 end caps；
The experimental solutions side liquid inlet of 32 test section one；33 drains；34 nozzles；35 teflon pipes；36:The water side inlet of test section two；
37：Acid and alkali-resistance digital display thermometer 1；38：Acid and alkali-resistance digital display thermometer 2；39：Glass valve 1；40：Acid and alkali-resistance electromagnetic flowmeter 1；
41：The water side liquid outlet of test section two；42：Stainless steel lining tetrafluoro flanged ball valve 1；43：Stainless steel ball valve；44：Immersible pump；45：It is resistance to
Soda acid digital display thermometer 2；46：Stainless steel lining tetrafluoro flanged ball valve 2；47：Make spraying system by oneself；48：Glass valve 2；49：It is acidproof
Alkali electromagnetic flowmeter 2；50：Stainless steel lining tetrafluoro flanged ball valve 3；51：Storage tank inlet；52：Storage tank；53：Condenser pipe；54：It is auxiliary
Help inlet；55：Electric heating cover；56：Storage tank liquid outlet；57：Atmospheric valve；58：Acid and alkali-resistance magnetic drive pump；59：Acid and alkali-resistance pressure gauge；
60：Glass valve 3
Embodiment
With reference to embodiment, the utility model is described in further detail, but the utility model is not limited to following implementation
Example.
Embodiment 1
As shown in Fig. 1~Fig. 8, the utility model Multifunctional mobile corrosion device mainly has：Acid and alkali-resistance magnetic drive pump, test section
First, test section two, storage tank, integrated electrochemical part 5,7,17 and 26,27,29, acid and alkali-resistance electromagnetic flowmeter, acid and alkali-resistance pressure
Table, acid and alkali-resistance digital display thermometer, flanged ball valve.
The one end of test section 1 is inlet 23, and the other end is liquid outlet 31；Electrochemical measurement hole use is distributed with above test section
To place electrochemical electrode auxiliary electrode 28, reference electrode 26 and working electrode 27.Jet assembly by polytetrafluoroethylsealed sealed fixture 19,
21, replaceable Teflon playpipe 35, the shower nozzle 34 (6mm, 8mm, 10mm) and spiral cover 20,22 of replaceable different bores
Form, during connection, first teflon pipe 35 is fitted into tetrafluoro fixture 19,21 with interference fit, then according to needed for testing, by one kind
The shower nozzle 34 of bore loads test section inlet 23, then by spiral cover 20,22 by thread seal by whole part 19,21,
35 are connected in pipeline.
For the electrochemistry experiment of test section 1, cock 25,28,30 is connected through a screw thread with end cap 31, and spiral cover center is provided with
Through hole (electrode hole), for laying auxiliary electrode 29, reference electrode 26, the first working electrode 27, in cock 25,28,30 and end
Tetrafluoro O-ring seal is laid among lid 31, after spiral cover screws with end cap, sealing ring can be played with jam-packed electrode 26,27,29
Fixation and sealing function.The upper surface of end cap 31 indicates 0 °~360 ° scales, after electrode assembles, can be adjusted according to scale
Angle between working electrode surface and jet, after determining angle, can by screw spiral cover 24 (be provided with internal thread, and
Glass tank body be threadedly coupled) and O-ring seal (being placed in end cap bottom) reach sealing purpose.Whole electrode working tips are in
Near the axis of nozzle 34 and the axis joining position of cock 25,28,30, all electrode other ends pass through wire and electrochemistry
Work station is connected.Wherein, a loop is made up of working electrode 27 and reference electrode 26, for the electrification of test job electrode 27
Course of reaction is learned, another loop is made up of working electrode 27 and auxiliary electrode 29, is played transmission and is electronically formed loop, complete
Paired metal material carries out the electro-chemical tests such as polarization scan, the accurate metal erosion situation obtained during Dynamic Corrosion.
Test section two is divided to for two parts, and a part is experimental solutions liquid side, and another part is water side, both sides be designed with into
Liquid mouth and liquid outlet, 14 be experimental solutions liquid side inlet, and 1 is experimental solutions side liquid outlet, and 10 be water side inlet, and 9 be water
Side liquid outlet.Both sides are designed with acid and alkali-resistance digital display thermometer 2；Two parts pass through special stainless steel fixture 13 and screw 12 (4)
It is attached, working electrode is accompanied in special polytetrafluoro fixture 11.
Tested for the electrochemical measurement of test section two, above experimental solutions side, cock 4,6 is connected with end cap 8 by screw thread
Connect, spiral cover center is provided with through hole (electrode hole) and is used for placing electrochemical electrode auxiliary electrode 5 and reference electrode 7, water side upper end
Lid is not provided with electrode hole.Cock 4,6 lays the O-shaped seal washer of tetrafluoro with the junction of end cap 8, close after spiral cover screws with end cap
Seal can play fixation and sealing function with jam-packed electrode (5,7).After electrode assembles, tetrafluoro O is installed in end cap bottom
Type sealing ring, it is placed on glass tank body, by screwing spiral cover 3, end cap is fixed and is sealed.Working electrode 17 is by special poly- four
Fluorine clamp, fixture are divided into upper part 15 and lower part 16, and two parts end face is both provided with sealing strip and seal washer groove,
There is projection the lower end of upper part 15, and provided with external screw thread, lower part 16 is fluted, and provided with internal thread, two parts are sandwiched between work electricity
Pole 17, clamped by screw thread and sealed by polytetrafluoro seal washer, be provided with screwed hole in the side of lower part 16, pass through Huang
Brass screw connects working electrode, the connecting wire on screw, electrode is connected by wire with electrochemical workstation.Wherein, one
Individual loop is made up of working electrode 17 and reference electrode 5, for the electrochemical reaction process of test job electrode 17, another time
Route working electrode 17 and auxiliary electrode 7 form, and play transmission and electronically form loop, complete to polarize to metal material
The electro-chemical tests such as scanning, the accurate metal erosion situation obtained during Dynamic Corrosion.
Annexation in experiment is as follows：The inlet of test section one, the experimental solutions side inlet of test section two and acid and alkali-resistance
Electromagnetic flowmeter, flanged ball valve, power circulation system are tightly connected, and the inlet of test section one, the experimental solutions side of test section two go out
Liquid mouth is connected with the sealing of storage tank inlet；The water side of test section two forms alone circulation loop, and power, circulation fluid are provided by immersible pump
Body is normal-temperature water, plays heat exchange effect；Storage tank condensate port and external condenser, storage tank liquid outlet and power circulation system are (acidproof
Alkali magnetic drive pump) sealing be connected；Electrochemical component above test section one and the experimental solutions side of test section two, be placed in spiral cover 4,6,
25th, in 28,30 central through holes, and screw thread cooperation is carried out by spiral cover and end cap 8,31, placed in spiral cover and end cap junction poly-
After tetrafluoro O-ring seal, spiral cover and end cap screw, compress sealing ring and reach sealing function；The both sides tank body of test section two passes through certainly
Flange clamp processed is sealed, and working electrode is sealed by making polytetrafluoro fixture 11 and polytetrafluoroethylsealed sealed packing ring by oneself, test section
One tank body and pipeline are attached by tetrafluoro locking device 19,20,21,22,34,35, both ensure that the dismounting side of nozzle segment
Just, also by the interference fit between polytetrafluoroethylsealed sealed fixture 19 and 21 and teflon pipe 35 and the spiral shell of spiral cover 20,22 and pipeline
Line connection ensures the sealing function of pipeline.
Before experiment, Multifunctional mobile corrosion device is accessed into power circulation system first；Secondly, by integrated electrochemical part
5th, 7,17,26,27,29, the flange clamp 12 of test section two, 13, working electrode fixture 11, the tetrafluoro locking device 19 of test section one,
20th, 21,22,34,35 installed；Wherein specific installation steps are as follows
1st, integrated electrochemical part：First put the electrodes into cock (4,6,25,28,30) center and be in cock by O-shaped sealing
Cock, installed in cock bottom, is then screwed in the screwed hole on end cap through electrode, jam-packed sealing ring, reaches sealing by circle
Effect；O-ring seal finally is placed in end cap bottom, is placed on tank body, is screwed spiral cover (8,24), tank body is sealed.
2nd, working electrode fixture 11：O-ring seal is first placed on working electrode fixture lower part (16) central blind hole bottom
Seal groove and the raised head face of working electrode fixture upper part 15 on seal groove in, then that working electrode 17 is put into 16 centers is blind
Hole, 15 and 16 are screwed by screw thread, compress the O-ring seal of the both sides of working electrode 17, then conductive fastener is screwed in into 11 sides
Through hole 18 in, be connected with working electrode 17.O-shaped sealing is placed in seal groove on the mounted both sides end face of fixture 11
Packing ring, the both sides tank body center of test section two is placed on, both sides tank body, compressing fixture 11 are connected by screwing the bolt 12 on flange 13
The O-ring seal of both sides, reaches sealing function.
3rd, the tetrafluoro locking device 19,20,21,22,34,35 of test section one：During connection, needed for first foundation experiment, by one kind
The shower nozzle 34 of bore loads test section inlet 23, then is assembled in spiral cover 20,22 and tetrafluoro fixture 19,21, finally again by spy
Teflon tube 35 is fitted into 19,21 through spiral cover 20 and 21 with interference, is then screwed spiral cover 20,22 and is compressed 19,21, reaches close
Envelope acts on.
Confirmation good seal is finished, is then determined whether to open electric heating cover according to requirement of experiment, if opening, confirms experiment
Temperature, finally determine whether test section one, two uses simultaneously, if being used alone, another test section both sides valve is closed, if making
With test section two, water side joint is entered into power circulation system.After the completion of above-mentioned steps, power-on, tested.
In experiment, corrosive medium flows through experimental provision via test section, storage tank, flowmeter, power circulating device, integrates electricity
Chemical components reach electrochemical workstation by wire, carry out record analysis.
As a result show, the utility model adds apparatus function, enhance simulation in the design of Flow Corrosion experimental provision
Effect, experiment condition is enriched, meanwhile, by autonomous innovation, in assurance function and on the basis of making the life-span, simplify device behaviour
Make flow, improve device processing safety, to improving Flow Corrosion experiment condition, further analyzing corrosion regularity, detection material
Material corrosion resistance plays an important role.
Claims (4)
1. a kind of Multifunctional corrosion experimental apparatus for testing, it is characterised in that the device is provided with test section one, experimental section two and storage
Tank.
Test section one includes tubbiness experimental provision, and tubbiness experimental provision side is provided with the outstanding inlet of test section one
(23), the replaceable shower nozzle (34) of installation in inlet (23), the replaceable Teflon playpipe (35) of the interior installation of shower nozzle (34),
It is fixedly connected between inlet (23), shower nozzle (34), Teflon playpipe (35) by spiral cover with polytetrafluoroethylsealed sealed fixture；Inlet
(23) relative side is provided with the taphole of test section one (32)；It is distributed with the end cap (31) of the upper surface of tubbiness experimental provision
Three electrochemical measurement holes are used for placing electrochemical electrode：First auxiliary electrode (28), the first reference electrode (26) and the first work
Make electrode (27), the upper three electrochemical measurement holes of end cap (31) are provided with cock, each cock center by hole internal thread respectively
It is provided with electrode hole and corresponding electrochemical electrode is installed；End cap (31) upper surface in electrochemical measurement hole protrudes end cap with cock
(31) there is sealing ring between the lower surface of part, after spiral cover screws with end cap, sealing ring can be played with jam-packed electrochemical electrode
Fixation and sealing function；The end cap upper surface in electrochemical measurement hole indicates 0 °~360 ° scales, for showing or according to quarter
Angle between degree adjustment working electrode surface and jet；The working end of whole electrochemical electrode bottoms is in shower nozzle (34)
Near axis and each cock axis joining position；All electrochemical electrode other ends pass through wire and electrochemical workstation
It is connected, wherein, a loop is made up of the first working electrode (27) and reference electrode (26), for testing the first working electrode
(27) electrochemical reaction process, another loop are made up of the first working electrode (27) and auxiliary electrode (29), play transmission electricity
Son forms the effect in loop, completes to carry out metal material the electro-chemical tests such as polarization scan, accurate to obtain Dynamic Corrosion process
In metal erosion situation；The taphole of test section one (32) position is higher than inlet (23) position；
It is experimental solutions device side that test section two, which is divided to for two parts, a part, and another part is water installations side；
The side of experimental solutions device is provided with experimental solutions device liquid outlet (1), and experimental solutions device liquid outlet (1) place is provided with
Acid and alkali-resistance digital display thermometer；Relative side is provided with prominent connector with experimental solutions device liquid outlet (1)；Experimental solutions
Device lower end is provided with experimental solutions device inlet (14)；It is furnished with experimental solutions device on the upper end cover (8) of experimental solutions device
Spiral cover (3), spiral cover (3) and upper end cover (8) are provided with two connection through holes and are used to configure the second auxiliary electrode (5) and the second reference
The working end of electrode (7), the second auxiliary electrode (5) and the second reference electrode (7) lower end is located near connector；Water installations upper end
Provided with end cap, lower end is provided with water installations inlet (10), and side is provided with water installations outlet (9), relative with water installations outlet (9)
Side is provided with prominent connector；By stainless between the protrusion connector of experimental solutions device and the protrusion connector of water installations
Steel fixture (13) and screw (12) are attached, and being accompanied in stainless steel fixture (13) by polytetrafluoro working electrode fixture (11) can
The second working electrode (17) changed, the second working electrode (17) is by the prominent of the protrusion connector of experimental solutions device and water installations
Go out between connector and block；Each electrode is connected with electrochemical workstation, and a loop is joined by the second working electrode (17) and second
Formed than electrode (5), for testing the electrochemical reaction process of the second working electrode (17), another loop is by the second work electricity
Pole (17) and the second auxiliary electrode (7) composition, act to transmit electronically forming loop, complete to carry out polarization to metal material to sweep
Electro-chemical test, the accurate metal erosion situation obtained during Dynamic Corrosion such as retouch；
The outlet of the water installations of test section two and inlet are connected with tank respectively by flowmeter, valve, form loop；Experiment
The Teflon playpipe (35) of section one connects first flange ball valve with spiral cover via seal clamp, and temperature is provided with first flange ball valve
Degree meter, the inlet (14) of experimental solutions device are connected with second flange ball valve, and first flange ball valve and second flange ball valve lead to
Cross merging pipeline to be connected with pump, pump is connected with storage tank, and storage tank passes through glass valve and the liquid outlet of experimental solutions device respectively
(1), the liquid outlet of test section one (32) connects, while storage tank also passes through the auxiliary inlet of storage tank, the 3rd flanged ball valve and first
Flanged ball valve connects with the merging pipeline of second flange ball valve.
2. according to a kind of Multifunctional corrosion experimental apparatus for testing described in claim 1, it is characterised in that the second reference electrode
(7) reference electrode salt bridge is used, to roll over shape structure so that the working end of lower end bends towards the second working electrode (17).
3. according to a kind of Multifunctional corrosion experimental apparatus for testing described in claim 1, it is characterised in that working electrode fixture
(11) it is divided into two parts, for convenience of describing, a part is designated as upper part, and another part is lower part, and the lower surface of upper part is set
There is projection, provided with external screw thread, be provided with upper lower through-hole in bossing, lower part is provided with groove, and inner side is provided with screw thread, groove
Bottom is provided with upper lower through-hole, and groove side is provided with tapped through hole (18)；The second working electrode can be placed in the groove of lower part
(17), upper part projection is clamped with lower part groove by screw thread and sealed by polytetrafluoro seal washer, in screw thread
Through hole (18) interior brass screw is connected with the second working electrode (17), is connected by screw working electrode, is connected and is led on screw
Line, the second working electrode (17) is set to be connected by wire with electrochemical workstation；Two through holes of working electrode fixture during use
It is relative with two prominent connectors of water installations and experimental solutions device respectively.
4. according to a kind of Multifunctional corrosion experimental apparatus for testing described in claim 1, it is characterised in that pump is fluorine plastic corrosion-proof
Lose pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720911882.6U CN207007674U (en) | 2017-07-26 | 2017-07-26 | A kind of Multifunctional corrosion experimental apparatus for testing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195750A (en) * | 2018-03-28 | 2018-06-22 | 西南石油大学 | Multifactor synergistic effect Dynamic Corrosion test device |
| CN108414588A (en) * | 2018-05-03 | 2018-08-17 | 辽宁石油化工大学 | A kind of novel electrochemical test device for three-electrode system and method |
| CN109238901A (en) * | 2018-10-24 | 2019-01-18 | 中国石油大学(华东) | A kind of multichannel erosion corrosion test macro and method |
| CN109444236A (en) * | 2018-10-29 | 2019-03-08 | 中国船舶重工集团公司第七二五研究所 | A kind of pipeline erosion corrosion and electrochemical testing device |
| CN111189769A (en) * | 2020-01-10 | 2020-05-22 | 重庆大学 | Metal material high-temperature oxidation simulation experiment device and experiment method |
| CN111398153A (en) * | 2020-03-19 | 2020-07-10 | 华电电力科学研究院有限公司 | Corrosion experiment device for simulating complex working conditions and use method thereof |
| CN114384003A (en) * | 2022-01-07 | 2022-04-22 | 鞍钢股份有限公司 | Seawater erosion corrosion test device and using method |
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2017
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195750A (en) * | 2018-03-28 | 2018-06-22 | 西南石油大学 | Multifactor synergistic effect Dynamic Corrosion test device |
| CN108414588A (en) * | 2018-05-03 | 2018-08-17 | 辽宁石油化工大学 | A kind of novel electrochemical test device for three-electrode system and method |
| CN109238901A (en) * | 2018-10-24 | 2019-01-18 | 中国石油大学(华东) | A kind of multichannel erosion corrosion test macro and method |
| CN109238901B (en) * | 2018-10-24 | 2023-09-22 | 中国石油大学(华东) | Multichannel erosion corrosion test system and method |
| CN109444236A (en) * | 2018-10-29 | 2019-03-08 | 中国船舶重工集团公司第七二五研究所 | A kind of pipeline erosion corrosion and electrochemical testing device |
| CN109444236B (en) * | 2018-10-29 | 2020-11-27 | 中国船舶重工集团公司第七二五研究所 | Pipeline erosion corrosion and electrochemistry testing arrangement |
| CN111189769A (en) * | 2020-01-10 | 2020-05-22 | 重庆大学 | Metal material high-temperature oxidation simulation experiment device and experiment method |
| CN111398153A (en) * | 2020-03-19 | 2020-07-10 | 华电电力科学研究院有限公司 | Corrosion experiment device for simulating complex working conditions and use method thereof |
| CN111398153B (en) * | 2020-03-19 | 2024-04-12 | 华电电力科学研究院有限公司 | Corrosion experiment device for simulating complex working conditions and application method thereof |
| CN114384003A (en) * | 2022-01-07 | 2022-04-22 | 鞍钢股份有限公司 | Seawater erosion corrosion test device and using method |
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