CN104568729A - Corrosion electrolytic cell device suitable for considering stress gradient influence - Google Patents
Corrosion electrolytic cell device suitable for considering stress gradient influence Download PDFInfo
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- CN104568729A CN104568729A CN201410829885.6A CN201410829885A CN104568729A CN 104568729 A CN104568729 A CN 104568729A CN 201410829885 A CN201410829885 A CN 201410829885A CN 104568729 A CN104568729 A CN 104568729A
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Abstract
The invention discloses a corrosion electrolytic cell device suitable for considering stress gradient influence. The corrosion electrolytic cell device is characterized by comprising a barrel I, a barrel II, a partition positioned between the two barrels, end boards positioned at the two ends of the serially-connected barrels, and stress loading devices at the two ends, wherein the barrel I and the barrel II are serially connected; counter electrodes are arranged inside the partition; working electrodes can be arranged inside the two end boards; inlets I with reference electrodes are formed in the upper parts of the barrels. By changing the conventional corrosion electrolytic cell structure, properties of electrolyte are monitored in real time, so that requirements of a test on the electrolyte temperature, the dissolved oxygen content, the flow velocity and the PH value are easily met; the corrosion electrolytic cell device can ensure the working area of a test sample, so that the conventional preparative work for ensuring the working area by sealing the test sample is omitted; the corrosion electrolytic cell device can conveniently exert a stress load onto the test sample, so that a requirement on the loading devices is reduced; the two ends of the electrolytic cell structure are allowed to exert the load onto the test sample, so that the corrosion electrolytic cell device is applicable to research of a corrosion electrolytic cell considering the stress gradient influence; the corrosion electrolytic cell device can reasonably ensure requirements on test conditions, so that the accuracy and the efficiency of measured data are easily achieved.
Description
Technical field
The present invention relates to a kind of corrosion electrolytic cell device being applicable to consider stress gradients affect.Relate to Patent classificating number C25 electrolysis or electrophoresis process; Its device therefor C25B production compound or nonmetallic electrolysis process or electrophoresis process; Its equipment C25B9/00 electrolytic tank used or its subassembly; Electrolytic tank component; The subassembly of electrolytic tank component, such as electrode-membrane assembly C25B9/06 comprises the electrolytic tank of the non-moving electrode of dimensionally stable; The subassembly of its component.
Background technology
When utilizing existing electrolytic tank to carry out three-electrode electro Chemical corrosion measurement test at present, the test unit of employing and method are main as shown in Figure 1: the shortcoming of equipment is mainly reflected in: assembling difficulty, and test unit assembling is inconvenient, the junction of test specimen and electrolytic tank is easy to leak, and causes electrochemical measurement to occur error, the non-measured position palpus epoxy sealing of test specimen, not reproducible utilization, material for test excess waste, there is no good aeration condition, the stable of dissolved oxygen content in electrolytic solution when carrying out corrosion test for a long time, can not be ensured, being difficult to when not disturbing electrolyte solution, ensureing the constant of solution temperature, be difficult to the flow velocity adjusting electrolyte solution, be difficult to periodic measurement electrolytic solution characteristic, often can not meet electrolyte PH value, temperature, the constant and periodic detection requirement of dissolved oxygen DO, when studying the corrosion test under stress influence, when needing to load sample, be limited to the design of electrolytic tank, loading direction simplification, in addition, measure for the bimetallic corrosion under stress gradients affect, currently mainly to adopt in two ways, a kind of is sample (working electrode is identical with the material of auxiliary electrode) for two identical materials, working electrode is in stress state and auxiliary electrode for not stress state, as shown in Figure 1, the Galvanic Current measured between the two reaches test objective, and under reality, due to structure stress position and component composition form difference, one-piece construction is often in non-homogeneous stress state, little position can be in unstress state, thus by traditional loading and not load mode, measure Galvanic Current to be between the two difficult to reach the corrosion condition of model engineering structure under stress gradient, another kind is that the two ends by loading variable cross section sample (working electrode) make its diverse location be in different stress levels, be placed in traditional cell container again, as shown in Figure 2, its subject matter is that stress gradient battery makes sample internal electron generation Autonomic Migration Framework, is difficult to by sample outside the measurement realizing Galvanic Current.
Summary of the invention
The present invention is directed to the proposition of above problem, and a kind of corrosion electrolytic cell device considering stress gradients affect that is applicable to of development, it is characterized in that comprising: the cylindrical shell I of series connection and cylindrical shell II, dividing plate between described two cylindrical shells, be positioned at the end plate at residing series connection cylindrical shell two ends and multiple connecting rod, described cylindrical shell I, cylindrical shell II, dividing plate and two end plates form one and are communicated with airtight space under the effect of described connecting rod;
Be provided with above described dividing plate electrode; The middle part of described end plate has through hole, the through hole of working electrode described in the outside seal of two ends end plate of tabular; The top of the cylindrical shell that cylindrical shell I and cylindrical shell II series connection is formed is provided with the port I placing contrast electrode; During work, in the series connection cylindrical shell be communicated with, inject electrolyte solution, the galvanic couple starting three electrode simulated seawater corrosion test is measured.
Have the outside framework of steady job electrode, described outside framework comprises the housing of a rectangle, and two relative edge's frames of housing are respectively equipped with axis leading screw on the same line, and the front end of described leading screw is provided with the clamping plate clamping described working electrode;
During work, the two ends of working electrode are clamped by clamping plate respectively, by regulating described two leading screws imposed load on the working electrode (s, and can the stress gradient of model engineering structure easily when two ends apply different stress.
The sidewall of described end plate II has multiple fixed orifice; One fixture is connected with end plate II by described fixed orifice; During work, the working electrode of holder tabular end plate II outer side compression and seal described through hole.
Described fixture comprises: the fixed mount fixed by described fixed orifice and end plate II, with the leading screw of fixed mount threaded engagement, be positioned at the fixture block of leading screw front end, described working electrode is fixed on end plate II by described fixture block, the through hole described in sealing.
Also be to have the multiple pick-up unit input ports be arranged on above cylindrical shell I and cylindrical shell II.
Also be that described cylindrical shell I and cylindrical shell II is also provided with input and discharges the interface of outer circulation water.
Also be that the interface of described input outer circulation water is positioned at the middle part of described cylindrical shell I and cylindrical shell II.
Also be to have the Inner eycle mouth of pipe being arranged on input and discharge electrolyte solution above cylindrical shell I and cylindrical shell II.
Owing to have employed technique scheme, a kind of corrosion electrolytic cell device being applicable to consideration stress gradients affect provided by the invention, tool has the following advantages: the present invention is reasonable in design, by the change to existing cell construction, meet the Real-Time Monitoring to electrolytic solution characteristic, be convenient to realize test to electrolyte temperature, dissolved oxygen content, flow velocity, the requirement of pH value, the working area of all right warranty test sample of this invention, eliminate tradition by seal sample to ensure the preliminary work of working area, be convenient to apply stress loading to sample simultaneously, reduce the requirement to charger, and cell construction two ends all allow sample imposed load, be applicable to the corrosion cell research considering stress gradients affect.Rational warranty test conditional request, is easy to the Accuracy and high efficiency realizing measurement data.
Accompanying drawing explanation
In order to the technical scheme of clearer explanation embodiments of the invention or prior art, introduce doing one to the accompanying drawing used required in embodiment or description of the prior art simply below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of prior art sea water corrosion test device
Fig. 2 is the sea water corrosion test schematic diagram that prior art considers stress gradients affect
Fig. 3 is the schematic diagram of test unit of the present invention
Fig. 4 is the front view of test unit of the present invention
Fig. 5 is the front view of test unit of the present invention with load frame
Fig. 6 is the vertical view of test unit of the present invention with load frame
Fig. 7 is the side view of experimental provision of the present invention with load frame
Fig. 8 is the schematic diagram of end plate of the present invention
Fig. 9 is the side view of end plate of the present invention
Figure 10 is the schematic diagram of the present invention to electrode
Embodiment
For making the object of embodiments of the invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear complete description is carried out to the technical scheme in the embodiment of the present invention:
As shown in Fig. 3-Figure 10: a kind of corrosion electrolytic cell device being applicable to consideration stress gradients affect, mainly comprise: the cylindrical shell I17 of series connection and cylindrical shell II18, operationally, two described cylindrical shells are horizontal.Dividing plate 19 is provided with between two described cylindrical shells, an end plate 3 and multiple connecting rod 7 is respectively equipped with at the cylindrical shell two ends of described series connection, O-ring seal is provided with at the edge of cylindrical shell I17 and cylindrical shell II18, under assembled state, described cylindrical shell I17, cylindrical shell II18, dividing plate 19 and two end plates 3 form one and are communicated with airtight space under the squeezing action of described connecting rod 7.
The socket inserted electrode 15 is provided with above described dividing plate 19.The surrounding that the middle part of described end plate 3 has the through hole 31 described in through hole 31 is provided with packing ring 311, ensures to keep sealing with working electrode in the assembled state, ensures the measurement area of working electrode simultaneously.The working electrode of tabular is provided with the port I16 placing contrast electrode above the cylindrical shell of the through hole 31. cylindrical shell I17 described in the outside seal of end plate 3 and cylindrical shell II18 series connection formation, forms three-electrode system.During work, in the series connection cylindrical shell be communicated with, inject electrolyte solution, the galvanic couple that can start to carry out three electrode simulated seawater corrosion test under the condition of various setting is measured.
Preferred embodiment, described duty is included in electrode under be positioned at the platinum gauze 152 of series connection inner barrel, the top of platinum gauze 152 is provided with the plastics loop bar 153 with platinum filament guide hole 154, is provided with in the side of described plastics loop bar 153 Metallic rod 151 be connected with platinum filament guide hole 154.
Further, in order to can test sample (working electrode 5) with the corrosive property under the condition of load, as preferred embodiment, be also provided with the outside framework of steady job electrode 5, be respectively equipped with an outside framework at the two ends of Chuan Lian cylindrical shell.Preferably, described outside framework comprises the housing 40 of a rectangle, the middle part of two relative edge's frames (housings of two vertical directions) of housing is respectively equipped with a leading screw 41, and leading screw 41 axis on the same line, and the front end of leading screw 41 is fixedly connected with the fixture block 42 clamping described working electrode 5.
The two ends of working electrode 5 are processed with bolt hole, fixture block 42 is provided with the bolt coordinated with bolt hole, the two ends of the working electrode 5 of such tabular are clamped by fixture block 42 respectively, by regulating two described leading screws 41 to regulate the load applied on working electrode 5, observe working electrode 5 with corrosion condition during load.
As preferred embodiment, the sidewall of end plate 3 has fixed orifice 12, preferably, can be threaded hole, four sidewalls of end plate 3 is all provided with fixed orifice, conveniently arranges the working electrode 5 of different directions.Fixture 1 is connected with end plate 3 by described fixed orifice 12.
Further, in order to ensure that fixture can apply enough pressure to working electrode to ensure that working electrode can the through hole 31 of effective Closed end plate 3.As preferred embodiment, described fixture 1 comprises: by the fixed mount 2 that described fixed orifice 12 is fixing with end plate 3, fixed mount 2 comprises two fixed edges and the plate being connected two fixed edges, the side that fixed mount 2 is relative with end plate II3 two respectively connects, the leading screw 21 with fixed mount 2 threaded engagement is provided with at the middle part of described fixed mount 2 plate, be positioned at the insulation fixture block 22 of leading screw 21 front end, working electrode is pressed on end plate II3 by described insulation fixture block 22 under the effect of leading screw 21.
As preferred embodiment, also there are the multiple pick-up unit input ports be arranged on above cylindrical shell 1, at least comprise: for the input port 8 of aeration, for detecting port 5 and the port one 0 of the characteristics such as electrolyte PH value, temperature, dissolved oxygen content.
In order to ensure the constant of experimental provision temperature, as preferred embodiment, described cylindrical shell 1 is also provided with input and discharges the interface of outer circulation water, comprise the interface 6 as water inlet be arranged in the middle part of cylindrical shell I17 and the interface 13 as water delivering orifice being arranged on cylindrical shell I17 top and the interface 11 as water inlet be arranged in the middle part of cylindrical shell II18 and the interface 13 as water delivering orifice on top is set, water inlet is arranged on the middle part of cylindrical shell 1, the insulating efficiency of recirculated water can be increased.
Accordingly, be also to have the mouth of pipe being arranged on input and discharge electrolyte solution above cylindrical shell 1, comprise the mouth of pipe 9 and the mouth of pipe 14 as shown in Figure 3.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1. one kind is applicable to the corrosion electrolytic cell device considering stress gradients affect, it is characterized in that comprising: the cylindrical shell I (17) of series connection and cylindrical shell II (18), dividing plate (19) between described two cylindrical shells, be positioned at end plate (3) and multiple connecting rod (7) at the cylindrical shell two ends of described series connection, the formation one under the effect of described connecting rod (7) of described cylindrical shell I (17), cylindrical shell II (18), dividing plate (19) and two end plates (3) is communicated with airtight space;
Described dividing plate (19) top is provided with electrode (15); The middle part of described end plate (3) has through hole (31), through hole outside seal described in of working electrode in end plate (3) of tabular; The top of the cylindrical shell that cylindrical shell I and cylindrical shell II series connection is formed is provided with the port I (16) placing contrast electrode; During work, in the series connection cylindrical shell be communicated with, inject electrolyte solution, the galvanic couple starting three electrode simulated seawater corrosion test is measured.
2. the corrosion electrolytic cell device being applicable to consideration stress gradients affect according to claim 1, be further characterized in that electrolytic cell device two ends all have the outside framework of steady job electrode (5), described outside framework comprises the housing (40) of a rectangle, two relative edge's frames of housing are respectively equipped with axis leading screw on the same line (41), and the front end of described leading screw (41) is provided with the fixture block (42) of the described working electrode of clamping (5);
During work, the two ends of two working electrodes (5) are clamped by fixture block (42) respectively, by regulating described two leading screws (41) at the upper imposed load of working electrode (5).
3. the corrosion electrolytic cell device being applicable to consideration stress gradients affect according to claim 1, is further characterized in that:
The sidewall of described end plate II (3) has multiple fixed orifice (12); Fixture (1) is connected with end plate II (3) by described fixed orifice (12); During work, fixture (1) clamping tabular working electrode end plate II (3) outer side compression and seal described through hole.
4. a kind of corrosion electrolytic cell device being applicable to consideration stress gradients affect according to claim 3, be further characterized in that: described fixture (1) comprising: by the fixed mount (2) that described fixed orifice (12) is fixing with end plate II (3), with the leading screw (21) of fixed mount (2) threaded engagement, be positioned at the fixture block (22) of leading screw (21) front end, described working electrode is fixed on end plate II (3) by described fixture block (22), the through hole (31) described in sealing.
5. a kind of corrosion electrolytic cell device being applicable to consideration stress gradients affect according to claim 1, is further characterized in that the multiple pick-up unit input ports having and be arranged on cylindrical shell I (17) and cylindrical shell II (18) top.
6. a kind of corrosion electrolytic cell device being applicable to consideration stress gradients affect according to claim 1, is further characterized in that described cylindrical shell I (17) and cylindrical shell II (18) is also provided with input and discharges the interface of outer circulation water.
7. a kind of corrosion electrolytic cell device being applicable to consideration stress gradients affect according to claim 5, is further characterized in that the interface of described input outer circulation water is positioned at the middle part of described cylindrical shell I (17) and cylindrical shell II (18).
8. a kind of corrosion electrolytic cell device being applicable to consideration stress gradients affect according to claim 1, is further characterized in that the Inner eycle mouth of pipe having and be arranged on the input of cylindrical shell I (17) and cylindrical shell II (18) top and discharge electrolyte solution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410829885.6A CN104568729B (en) | 2014-12-26 | 2014-12-26 | Corrosion electrolytic cell device suitable for considering stress gradients affect |
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| CN201410829885.6A CN104568729B (en) | 2014-12-26 | 2014-12-26 | Corrosion electrolytic cell device suitable for considering stress gradients affect |
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| CN104568729B CN104568729B (en) | 2017-12-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203449A (en) * | 2015-10-13 | 2015-12-30 | 东南大学 | Corrosion tank for reinforcing bar corrosion testing in simulated concrete pore solution |
| CN111398154A (en) * | 2020-03-31 | 2020-07-10 | 大连理工大学 | Multi-channel loading and corrosion electrolytic cell device considering tensile and compressive stress influence |
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| CN203396742U (en) * | 2013-08-06 | 2014-01-15 | 东北大学 | Electrolytic cell device with three-electrode system for electrochemical testing |
| CN204514779U (en) * | 2014-12-26 | 2015-07-29 | 大连理工大学 | Be applicable to the corrosion electrolytic cell device considering stress gradients affect |
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Patent Citations (8)
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| JPH10185858A (en) * | 1996-12-26 | 1998-07-14 | Hokuto Denko Kk | Column-type cell for electrolytic synthesis |
| US6015484A (en) * | 1997-11-26 | 2000-01-18 | Gamry Instruments, Inc. | Detection of pitting corrosion |
| CN2741039Y (en) * | 2004-09-28 | 2005-11-16 | 中国海洋石油总公司 | Electrolytic pool of electrochemical corrosive measurement of sea mud |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203449A (en) * | 2015-10-13 | 2015-12-30 | 东南大学 | Corrosion tank for reinforcing bar corrosion testing in simulated concrete pore solution |
| CN105203449B (en) * | 2015-10-13 | 2018-01-02 | 东南大学 | The corrosion pond that steel bar corrosion is tested in a kind of reinforcing steel |
| CN111398154A (en) * | 2020-03-31 | 2020-07-10 | 大连理工大学 | Multi-channel loading and corrosion electrolytic cell device considering tensile and compressive stress influence |
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| CN104568729B (en) | 2017-12-01 |
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