CN2847283Y - Novel long-acting copper-copper sulfate reference electrode - Google Patents
Novel long-acting copper-copper sulfate reference electrode Download PDFInfo
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- CN2847283Y CN2847283Y CN 200520127302 CN200520127302U CN2847283Y CN 2847283 Y CN2847283 Y CN 2847283Y CN 200520127302 CN200520127302 CN 200520127302 CN 200520127302 U CN200520127302 U CN 200520127302U CN 2847283 Y CN2847283 Y CN 2847283Y
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Abstract
The utility model relates to a novel long-acting copper-copper sulfate reference electrode which is an improvement for the prior art, and the utility model is a tool and an auxiliary facility for electrode potential measurement in fixed spots for research and application domain of electrochemistry. An electrode housing is made of artificial insulating material, and an electrode body is composed of an upper end cover, a lower end cover and the electrode housing; embedded bisque permeable membrane block serves as an electrode interface; a copper electrode is arranged on the inner axial cord of the electrode with total length, which is electrically connected with electrode wire on the upper end cover and is hermetically led out; the inner surface of the electrode body and the surface of the copper electrode are covered with a water accepting layer, a water-storing layer and an isolation layer; after activation, filled copper sulfate crystal reacts with the copper electrode to form standard electrode potential. In order to realize higher index, the manufacture of wall-permeable membrane block is cancelled, and an upper-permeable membrane block serves as insulating material for an activation hole plug; a conduit interface is arranged, a water tank is connected by the conduit, and thus water is replenished to the reference electrode or copper sulfate solution by the conduit. The novel long-acting copper-copper sulfate reference electrode has the advantages of standard electric potential, stable performance, good adaptability, simple use and reliable quality, and the utility model also coincides with electrochemistry theory and requirement of technical specification.
Description
1. technical field
New long-acting copper---the copper sulphate contrast electrode is the long-acting copper to prior art---technological improvement and perfect performance that the copper sulphate contrast electrode is done.
Contrast electrode is the survey instrument of electrochemical research and application, for the electrode potential of measuring object provides the current potential benchmark, obtains quantitative, comparable result.The contrast electrode kind is a lot, and different objects require to use different contrast electrodes, and copper---copper/saturated copper sulphate contrast electrode is to be applicable to the iron and steel structures to be the contrast electrode of main object.
Long-acting copper---the copper sulphate contrast electrode also claims solid copper---copper sulphate contrast electrode, the essence during use is copper---the copper/saturated copper sulphate contrast electrode.Must not safeguard or seldom safeguard after burying underground and can use for a long time and gain the name because install; protecting in (claiming the protection of cathodic protection or electrical method) technology with the electrochemical anti-corrosive erosion of iron and steel structures under water with burying; electrode potential to protected object or research object is measured; carry out and adjust, compare, monitor, control; especially at the fixed-site of needs, be used widely.In oil, Gas Industry; oil gas field gathering line and long distance are buried the ground oil and gas pipeline; oil gas storage and transport station, storehouse, a pipeline, storage tank and equipment are carried out in the cathodic protection station of anti-corrosion protection, and long-acting copper---the copper sulphate contrast electrode has become essential auxiliary device.
2. background technology
The long-acting copper of domestic prior art---copper sulphate contrast electrode is the research before and after the nineties in last century of Qingdao boats and ships research institute, trial-produces successfully and promote, and industry has production marketing under it; Imitated and the sell goods of how tame domestic manufacturers such as back Sanming City radio two factories, Kunming Metallurgical Machinery Factory.
The essential structure of the long-acting copper of prior art---copper sulphate contrast electrode is to fill copper sulfate crystal in ceramic or bique circle tube tank body, inserts clavate or spirality copper electrode, and copper electrode is connected with the measurement lead, the back is installed inserts the measurement loop.Ceramic or bique tank body have little characteristic of oozing, and the passage with environment ion exchange is provided, and constitute with measurand and measure the loop, be the contrast electrode body also be that contrast electrode is realized the interface measured.Long-acting copper---copper sulphate contrast electrode must activation processing can be worked, and the method for activation processing is: long-acting copper---copper sulphate contrast electrode immersion fresh water or depleted copper sulfate solution 24 hours.
The essence of long-acting copper---copper sulphate contrast electrode activation processing is to make water enter the contrast electrode body, make the copper sulfate crystal dissolving that fills, generate copper-bath, because the copper sulfate crystal amount is big in the electrode body, the solution that dissolving obtains is copper/saturated copper sulphate solution, form copper---the electrode environment of copper/saturated copper sulphate with copper electrode, following electrode reaction take place:
In the reaction, the copper electrode positively charged, solution is electronegative, and the interface forms potential difference (PD), is electrode potential.
Electrode potential value is calculated by following formula:
In the formula: E
0---the normal potential of copper
α
Cu 2+---copper ion activities in the solution
R---gas law constant, 8.31J/ ℃
T---absolute temperature, K
F---faraday constant, 96500C
When the course of reaction balance,
E＝0.337+0.03logα
Cu 2+ (25℃)
(" cathodic protection engineering handbook, Chemical Industry Press, Hu Shixin chief editor) use in desirable copper---copper/saturated copper sulphate electrode potential+0.33V (standard hydrogen electrode, 25 ℃).
(Shanghai Light Industry Training School compiles for " galvanochemistry ", Shanghai science tech publishing house)
Copper---copper/saturated copper sulphate electrode is difficult for polarization, good corrosion resistance, and current potential is stable, is suitable as the requirement of current potential benchmark in the measurement, therefore is appointed as the contrast electrode that is used for iron and steel structures cathodic protection field by the correlation technique standard of country and industry.
Because long-acting copper---essence after the activation of copper sulphate contrast electrode is copper---copper/saturated copper sulphate contrast electrode; not resembling copper after burying installation underground---the copper/saturated copper sulphate contrast electrode must often be safeguarded; therefore be widely used; especially in cathodic protection station and some stationary applica-tions; long-acting copper---copper sulphate contrast electrode has generally been adopted in the measurement of electrode potential, sampling and supervision control etc.
But,, give in using that especially cathode protection technology and management aspect bring the problem that can not be ignored because long-acting copper---the construction features and the handling characteristics of copper sulphate contrast electrode of prior art makes it have great shortcoming and defect on character and performance.These shortcomings, deficiency and the problem that exists do not obtain the understanding and the correction of prior art so far as yet, though the problem that has has caused the attention of engineering design department, the measure of taking can not reach the purpose and the Expected Results of effective solution.
These shortcomings, deficiency and problem mainly show following two aspects:
The first, use limitation and life-span
The long-acting copper of prior art---the copper sulphate contrast electrode is with instead of copper---copper/saturated copper sulphate contrast electrode is the purpose development, owing to promote successfully, development person, the producer, the adopter does not propose its scope of application and limitation, though the user runs into many problems and puzzlement in practice, think mostly to break down or mass defect, understanding and query to the basic quality and the performance of product are not proposed, therefore remove and move, copper is also used in measurement at random---beyond the copper/saturated copper sulphate contrast electrode, long-acting copper---the copper sulphate contrast electrode is almost topped all contrast electrode usable range (manufacturer that has also has " portable long effective reference electrode " product, because of poor performance adopts wideless).But facts have proved that the long-acting copper of prior art---the copper sulphate contrast electrode truly has tangible limitation, these limitation make them not be suitable for some environment, reason they construction features and use in environmental relation on.
During being to use, significant advantage of long-acting copper---copper sulphate contrast electrode must not safeguard that (actual is to safeguard) and life-span are long, this production firm is generally all provided index: 10 years, but this also is very inapt, reason also it construction features and use in environmental relation on.
The using method of known long-acting copper---copper sulphate contrast electrode is directly or adds and fill out construction materials contract and be embedded near the measurand the soil, makes pottery or the bique electrode body is become one with soil environment, constitutes the measurement loop with measurand.At the beginning of contrast electrode is buried installation underground, the inner full copper/saturated copper sulphate solution of the activated processing of electrode, because little characteristic of oozing of pottery or bique, contrast electrode is in the reference potential state and carries out the electrolyte exchange with environment, along with increase service time, situation can change, and concrete manifestation is that contrast electrode and soil environment are carried out the consumption of water in the electrolyte exchange process and copper sulphate and replenished.
Electrolyte consumption speed is decided by the osmotic pressure of electrode internal and external environment in the contrast electrode, and infiltration capacity can illustrate with following formula:
V＝k(P
1-P
2)
In the formula: V---infiltration capacity (quality or volume)
P
1---osmotic pressure in the electrode
P
2---the electrode exosmosis is pressed
K---material and construction coefficient
Analyze as can be known, work as P
1＞P
2, osmotic pressure is higher than electrode exosmosis pressure in the electrode, and electrolyte oozes out electrode in the electrode; P
1＜P
2, soil water-containing is abundant, and the electrode exosmosis is pressed and is higher than osmotic pressure in the electrode, and the outer electrolyte of electrode infiltrates electrode; P
1=P
2, balance is kept in infiltration.More than be the situation that contrast electrode and measurement environment are normally carried out the electrolyte exchange, the ion motion passage is good, the normal measurement purpose that realizes.If P
1＞P
2And P
2=0, expression soil is dry, and electrolyte outwards oozes out the speed maximum in the electrode, to P
1=0, electrolyte oozes out totally, and the electrode reaction condition disappears in the electrode, and contrast electrode can be described as dormancy by undesired to losing current potential benchmark ability, measures also to interrupt or be spurious state (saying that exactly electrolyte oozes out into copper electrode disengaging, contrast electrode dormancy); In case soil obtains moisture, P during beginning
1＜P
2And P
1=0, electrolyte in the soil (water that contains various ions) infiltrates in electrode with maximum rate, the copper sulphate dissolving of crystallization, the electrode reaction environment recovers gradually in the contrast electrode, the reference potential ability rebulids, contrast electrode brings back to life, and measures also and reverts to normal condition gradually from interruption or spurious state.
Long-acting copper---copper sulphate contrast electrode is buried the back underground and is being repeated said process in varying degrees, and consumes copper sulfate crystal during the course.Therefore can draw to draw a conclusion: the behaviour in service of long-acting copper---copper sulphate contrast electrode is to be closely connected with the soil property of burying environment underground, the property of water-bearing and retaining are good, the damp soil environment is fit to long-acting copper all the year round---and the copper sulphate contrast electrode uses, the contrast electrode performance is more stable in this soil environment, and material consumption is slow, the life-span is long.If soil water-containing and retaining are bad, moist dry season in rainy season drying, even every rainwater all has tangible retaining---dehydration process, this soil environment is not suitable for long-acting copper---the use of copper sulphate contrast electrode, contrast electrode unstable properties in this soil environment, the electrode potential fluctuation is big, and electrolyte consumption is fast, the life-span short.Only there are 2,3 years in the use even shorter time copper sulphate exhausts the example of contrast electrode thereby inefficacy fully.
The dry soil environment is not suitable for long-acting copper---the copper sulphate contrast electrode uses this situation, and existing institute of engineering design department notes, increase filling pipe and floor drain apparatus in the cathodic protection engineering design in recent years, in the use to the water filling of contrast electrode burial place.But, analyzing this measure as can be known can not deal with problems, soil possibility some effect good to retaining, to drying again the bad soil of retaining not only can not produce effect, also can aggravate the speed that electrolyte runs off and contrast electrode lost efficacy, and frequent water filling also makes long-acting copper---the characteristics and the advantage forfeiture of copper sulphate contrast electrode.
The second, current potential benchmark and precision
The current potential benchmark that contrast electrode is measured as electrode potential, himself precision (or saying error) should be most important index.Because copper---the structure and the theoretical prototype of copper/saturated copper sulphate contrast electrode are in full accord, no matter theoretical research or technology are used its current potential precision is not suspected, may be also just therefore, country and industry do not propose copper so far---the technical indicator of copper/saturated copper sulphate contrast electrode current potential precision, and also without demur in the practice.It is generally acknowledged that as long as material therefor enough pure (copper electrode of electrolysis and the pure above copper sulfate crystal adding distil water of analysis), the electrode potential of copper---copper/saturated copper sulphate contrast electrode is exactly accurately.Contrast electrode manufacturer also utilizes this point, is giving appended " technical information " lining of product, do not forget to write the index of current potential " error ", " precision " or " drift ": ± 5mV or ± 10mV.No matter how these indexs obtain, to copper---the copper/saturated copper sulphate contrast electrode is set up substantially, to the long-acting copper of prior art---the copper sulphate contrast electrode is nonsensical.
Before address, long-acting copper---copper sulphate contrast electrode before use must activation processing, the potential electrode current potential generally met These parameters after activation processing was finished, and activation processing is got over standard and (is used clean utensil and virgin material, such as distilled water and the pure above copper sulfate crystal of analysis), the index that obtains is good more.But, long-acting copper---copper sulphate contrast electrode is buried the back underground and is combined together with measurement environment, constantly exchange by infiltration with the interior electrolyte of electrode in the soil, electrolyte is exuded in the soil in the electrode, electrolyte infiltrates in the electrode in the soil, after a period of time, remove mutual concentration and ratio and have difference, the inside and outside contained ion component of electrolyte of electrode has become identical.According to electrochemical theory as can be known, different metal all is being different with the electrode potential of same metal in different electrolyte solutions in the same electrolyte solution, and polarization characteristic and stability are also inequality, for this importance, when understanding and discussion contrast electrode current potential accuracy, can not ignore.
In metal erosion anticorrosion field, soil is counted as the electrolyte of complicated ingredient, and soil contains saline and alkaline composition and different kinds of ions, as potassium (
K), sodium (Na
+), calcium (Ca
2+), iron (Fe
2+3+), magnesium (Mg
2+), and hydroxyl (OH
-) acid group (CO
3 2-, NO
3 -, SO
4 2-, Cl
-) etc.So, even long-acting copper---copper sulphate contrast electrode material therefor is qualified fully, making does not have defective, activation processing is strictly regulated, also can change through permeation-exchange inside electrolyte ingredient after burying ground, the electrode reaction of electrode reaction and copper---copper/saturated copper sulphate is inequality, electrode potential after the balance is not real copper---the electrode potential of copper/saturated copper sulphate, but the compound superposition of multiple electrode potential, no matter precision, stability all can change, the result who obtains for the reference measurement electrode potential has just lost quantitative and meaning accurately according to this.Use facts have proved, in the same time and place with object with long-acting copper---electrode potential value that the copper sulphate contrast electrode is measured with copper---electrode potential value ubiquity error that the copper/saturated copper sulphate contrast electrode is measured, this error is different because of soil regime, in the stable soil environment of humidity, generally tens of to more than 100 millivolts of scopes, it is inviolent to change, in dry and unsettled soil environment, can reach hundreds of millivolt even higher, and alter a great deal, back one situation analysis thinks it should not exclusively is the factor of electrode reaction, also with aforementioned contrast electrode dormancy---the resurrection situation is relevant.
Cathode protection technology is theoretical property and the very strong specialty of practicality; the metal erosion that it will be controlled is no matter be that microprocess or macroscopical process all are to carry out and develop in lasting, hidden form; though potential measurement is simple; but be that corrosion situation is quantized the only resource of observing and monitoring; also be to realize regulating and controlling by sampling; optimize the key link of index, exist obvious in this respect and uncertain error obviously should not allow.
In sum; the shortcoming and defect that the long-acting copper of prior art---copper sulphate contrast electrode exists is tangible and definite; these shortcoming and defect make this important survey instrument of contrast electrode depart from the requirement of the electrochemical principle of its foundation; do not meet the related specifications of country and industry yet; and cause mistaken ideas in the use; not only influence their quality index and technical indicators as product; the more important thing is that affecting with them is the accuracy that the electrode potential of benchmark is measured, and then influence electrochemical research and application especially to prevent that metal erosion from being the technology status and the management quality in the cathodic protection field of target.
3. summary of the invention
New long-acting copper---copper sulphate contrast electrode at prior art products affected by environment big, potential errors big, unstable properties, the untrue shortcoming of technical indicator, solution is proposed, purpose is that to produce electrode potential accurate, stable performance, applicability is good, the reliable quality product, in the practicality in strict conformity with electrochemical theory and
The requirement of correlation technique standard.
For realizing above purpose, new long-acting copper---the copper sulphate contrast electrode at first designs new one-piece construction, make electrode body with the artificial insulating material of high-quality, inlay special bique permeability module and make electrode interface, alleviate so that the blocking-up contrast electrode is subjected to the influence of environment with this; The second, the standard copper electrode is along contrast electrode axis device, and is isometric with space in the electrode, makes full use of whole electrolytes, reaches maximum life; The 3rd, at electrode body inwall and copper electrode surface coverage water accepting layer, aquifer, separation layer, the space after the isolation fills copper sulfate crystal.The material tool strong absorptive of water accepting layer and aquifer can be drawn to greatest extent and gathers ambient moisture, and sets up complete unified electrode reaction environment in the electrode, guarantees the true and stable of electrode potential to greatest extent.Separation layer protection water accepting layer and aquifer are isolated space segments different in the electrode with good insulation performance, have only the ion-exchange relation mutually and do not have electrical connection.
New long-acting copper---copper sulphate contrast electrode consideration technology is suitable for and actual needs two aspect requirements, takes into account the efficient and the cost of cathodic protection maintenance management, and design direct built-in and two kinds of schemes of perfect form are fit to different request for utilizations and select.
The new long-acting copper of direct built-in---the copper sulphate contrast electrode is connected with prior art, installation is buried underground same as the prior art but easier, it designs three kinds of permeability modules: following permeability module, be loaded on electrode bottom end cover middle part, last permeability module, helicitic texture is loaded on upper end cover activation hole, the wall permeability module is embedded in electrode body top circumference.Three kinds of permeability modules are electrode interface, but have difference to stress: following permeability module is the contrast electrode main interface, guarantees that little blending with soil fully contacts, to realize measurement function; Last permeability module and water accepting layer join and draw soil moisture jointly, and the activation stopple of holding concurrently activates contrast electrode fast, fully for before burying underground; The auxiliary permeability module of going up of wall permeability module realizes drawing the function of gathering soil moisture better.
The new long-acting copper of direct built-in---copper sulphate contrast electrode does not cut off and environmental relation fully, it is applicable to moist stable soil environment, the occasion of the instant accuracy requirement to potential measurement not strict (as observing, monitoring), in the use by irregularly comparing and measuring the grasp potential errors.
The new long-acting copper of perfect form---copper sulphate contrast electrode design is gone up the reaction of earth environmental impact contrast electrode internal electrode from cutting off fully, the wall permeability module is made in cancellation, last permeability module is used the activation stopple that insulating material is made instead, and therein one manufacture catheter interface, connect water storing tank with conduit when burying underground, water storing tank has the catheter interface the same with contrast electrode, replenishes distilled water or copper-bath by conduit to contrast electrode.
The new long-acting copper of perfect form---copper sulphate contrast electrode is buried the back underground and is kept the interior osmotic pressure of electrode to be higher than osmotic pressure in the soil, both electrolyte environments are independent mutually, therefore realize that the contrast electrode electrode potential is stable, true, standard, so be fit to any soil environment, also be fit to any requirement to the potential measurement precision.Bury complexity a little underground though the increase water replanishing device makes,,, and the more important thing is infallible effect no matter difficulty or cost all reduce greatly than the filling pipe and the floor drain scheme of prior art.
The new long-acting copper of perfect form---the copper sulphate contrast electrode is actual to be the copper that buries ground---copper/saturated copper sulphate contrast electrode, electrode potential is accurate, life-span is certain, by filling the decision of copper sulfate crystal quantity and wear rate, if additional distilled water is changed into additional in case of necessity copper/saturated copper sulphate solution, serviceable life can be longer.
4. description of drawings
The Figure of description example is seen in the structure and the use of new long-acting copper---copper sulphate contrast electrode, wherein:
Fig. 1 is the new long-acting copper of direct built-in---copper sulphate contrast electrode axle longitudinal diagram, and copper electrode wherein, slotted line, permeability module are not done to analyse and observe;
Fig. 2 is the new long-acting copper of perfect form---a copper sulphate contrast electrode outside drawing, analyses and observe the activation stopple and the activation pore structure of the catheter interface that draws;
Fig. 3 is the new long-acting copper of perfect form---the copper sulphate contrast electrode is installed connection diagram, analyses and observe conduit and connects and the water storing tank part;
Fig. 4 is that conduit connects cut-open view and amplifies, for the clear structure that shows conduit and catheter interface be connected.
Illustrate each parts and mutual relationship, in an embodiment explanation.
5. embodiment
Figure of description 1 is the new long-acting copper of direct built-in---a copper sulphate contrast electrode embodiment.
Artificial insulating material (the engineering plastics of high-quality, organic glass, PVC etc.) system electrode shell 1 and bottom end cover 2, upper end cover 3 is formed electrode body, bottom end cover 2 is processed with film piece mounting hole, upper end cover 3 is processed with electrode mounting hole and threaded activation hole, the following permeability module 5 that bique is fired is flush-mounted in bottom end cover 2 film piece mounting holes, totally 2 of last permeability modules 6, be shaped on screw thread, be loaded on the activation hole of upper end cover 3, the bottom is joined by absorbent material and water accepting layer 8, totally 4 of wall permeability modules 7, evenly be embedded in electrode shell 1 top along circumference, inner face and water accepting layer 8 join, the copper copper electrode 4 of electrolysis is fixed in upper end cover 3 electrode mounting holes along the electrode body axis, and is isometric with the electrode intracorporeal space, surface and following termination water accepting layer 8, the upper end is electrically connected with electrode wires 13, electrode wires 13 is drawn through 12 sealings of wiring end-blocking, and for convenient the inhibition is subjected to electromagnetic interference (EMI) in the measuring-signal transmission, electrode wires 13 adopts RVP type or RVVP type shielding cord.Electrode body inside surface and copper electrode 4 surfaces cover water accepting layer 8, aquifer 9 and separation layer 10 successively, and the space after the isolation fills analytical pure sulfuric acid copper crystal 11.The senior filter paper of water accepting layer 8 usefulness is made, the artificial sponge of aquifer 9 usefulness is made, draw and gather the soil moisture system with last permeability module 6, wall permeability module 7 common compositions, as long as soil humidity, absorb water to greatest extent in the electrode, form unified electrode reaction environment in the contrast electrode simultaneously, can under worst condition, keep electrode potential farthest stable.Separation layer 10 usefulness detailed catalogue terylene screen makings had both been carried out space isolation and the protection in the electrode with good permeability, compactness and insulativity, had guaranteed the unblocked of ion motion again.
The new long-acting copper of direct built-in---copper sulphate contrast electrode to bury installation underground simpler than prior art, vertical, must not fill out construction materials contract, activation processing must not soaked, open permeability module 6, to full, measuring system can be buried, be inserted to recovery permeability module 6 underground slowly to inject clean fresh water (distilled water for well) to the activation hole.
Figure of description 2 is the new long-acting copper of perfect form---profile and the structure of copper sulphate contrast electrode embodiment.
The new long-acting copper of perfect form---the copper sulphate contrast electrode is based on the new long-acting copper of direct built-in---copper sulphate contrast electrode, wall permeability module 7 is made in cancellation, the activation stopple 14 that last permeability module 6 is made with the insulating material identical with end cap replaces, and catheter interface 15 is installed in a punching therein, catheter interface 15 built-in drainage cores 17, the processing of activation hole is slightly different with direct built-in: step dress O-ring seal 16 is reserved in the bottom.Remove above change, the miscellaneous part 26S Proteasome Structure and Function is with the new long-acting copper of direct built-in---the copper sulphate contrast electrode is identical.
Deployment catheter 18 and water storing tank 19 when the new long-acting copper of perfect form---copper sulphate contrast electrode uses, the built-in drainage core identical of conduit 18 with drainage core 17, water storing tank 19 is equipped with the catheter interface identical with contrast electrode, conduit 18 usefulness minor diameter modified plastics flexible pipes are made, drainage core 17 usefulness absorbent cotton spinning, the function of drainage core is to prevent that the minor diameter pipeline from stopping because of reasons such as surface tension and vapour locks.
Above-mentioned change and setting make the new long-acting copper of perfect form---and the copper sulphate contrast electrode can in use replenish electrolyte voluntarily, keep the osmotic pressure in the contrast electrode to be higher than environment osmotic pressure, electrolyte is not subjected to the influence of ambient impurities in the contrast electrode, guarantees the electrode reaction environment of strict standard in the contrast electrode.
Figure of description 3 is the new long-acting copper of perfect form---copper sulphate contrast electrode example is installed and is buried synoptic diagram underground.
Electrode wires 13 is connected with the measurement cable, causes measurement---adjusting device; New long-acting copper---copper sulphate contrast electrode catheter interface 15 is connected with conduit 18, and conduit 18 joins with water storing tank 19 catheter interfaces, and other requirements that contrast electrode is buried underground are with the new long-acting copper of direct built-in---the copper sulphate contrast electrode is identical.
The container that the also available any chemical property of water storing tank is stable replaces, as long as catheter interface is installed.Water storing tank can be loaded on the ground, also can be loaded on underground.Be installed in should be equipped with on the ground and firmly neatly be convenient to support and the control box managed, this generally is the common facility of oil gas storage and transport station field; Being installed in the underground face of land together or building the geosyncline that adds lid by laying bricks or stones a little more than the face of land, place wherein, is simple and practical scheme.
Figure of description 4 amplification view that conduit connects that draws, the structure that more clearly illustrates conduit and catheter interface be connected.
The new long-acting copper of perfect form---should guarantee during the copper sulphate contrast electrode is buried underground that conduit is connected well with catheter interface, conduit is injury-free.Be located at water storing tank underground, the little good place of (about 1m) soil property of contrast electrode buried depth, conduit can directly be placed into the soil and must do not protected; Be located on the ground or bury underground dark or the relatively poor place of soil property at water storing tank, the reply conduit protects when burying underground, suitable soft and hard plastic pipe, ripple pipe, flexible metal conduit, the conduit of bore, moulds frid etc. and all can select for use, adopts the metal tube can be more reliable certainly.
The new long-acting copper of two kinds of patterns---copper sulphate contrast electrode can be realized compatibility easily, just can realize as long as change the activation stopple.
The perfect form contrast electrode is changed permeability module, completely activate the bottom, hole with the water accepting layer material cushion and can do the use of direct built-in contrast electrode, the direct built-in contrast electrode is changed the activation stopple that catheter interface was made and be equipped with to insulating material, connecting duct and water storing tank promptly are the perfect form contrast electrodes, though at this moment the wall permeability module is the passage that contrast electrode and soil environment are got in touch, but as long as the good normal moisturizing that guarantees is installed, keep the interior osmotic pressure of contrast electrode to be higher than the contrast electrode exosmosis and press, can guarantee that contrast electrode is not subjected to the harmful effect of environment.
New long-acting copper---the design of copper sulphate contrast electrode is simple and clear, rational in infrastructure, meets the requirement of electrochemical principle and country, industry correlation technique standard, and meets existing use habit.Copper sulphate contrast electrode applicability is bad for the correct new long-acting copper---the copper sulphate contrast electrode can effectively overcome the long-acting copper of prior art---of selecting, correctly bury underground installation; the electrode potential instability; error is big; the untrue shortcoming of technical indicator realizes stable performance, the current potential standard; easy to use; the purpose of safety and effectivity, to improving the management level and the technical merit of cathodic protection, the quality and the efficient that improve maintenance and repair work play good action.
Claims (7)
1. new long-acting copper---copper sulphate contrast electrode, with artificial nonconductive material electrode shell of high-quality (1) and bottom end cover (2), upper end cover (3) constitutes electrode body, the following permeability module (5) that bique is fired, last permeability module (6), wall permeability module (7) is flush-mounted in electrode body and constitutes electrode and environmental interface, last permeability module (6) is shaped on screw thread, be loaded on the activation hole of upper end cover (3), copper electrode (4) is fixed in upper end cover (3) electrode mounting hole along the electrode body axis, electrode wires (13) is electrically connected with copper electrode (4), draw through wiring end-blocking (12) sealing, electrode body inside surface and copper electrode (4) surface coverage water accepting layer (8), aquifer (9) and separation layer (10), fill copper sulfate crystal (11), activation back and the reaction of copper electrode (4) generating electrodes, set up standard copper---copper/saturated copper sulphate electrode potential, warp permeability module (5) down are connected measurement environment with electrode wires (13);
Wall permeability module (7) is made in cancellation, last permeability module (6) is changed into the activation stopple (14) that insulating material is made, catheter interface (15) is installed, connect conduit (18) and water storing tank (19), catheter interface (15) and the built-in drainage core of conduit (18) (17) are the perfect form embodiment;
It is characterized in that: electrode body is done with artificial nonconductive material, and the permeability module that the setting-in bique is fired is made contrast electrode and environmental interface.
2. according to the described new long-acting copper of claim 1---the copper sulphate contrast electrode is characterized in that: copper electrode is installed along the contrast electrode axis, and is isometric with contrast electrode intracorporeal space size.
3. according to the described new long-acting copper of claim 1---the copper sulphate contrast electrode is characterized in that: electrode wires adopts the shield type cord.
4. according to the described new long-acting copper of claim 1---the copper sulphate contrast electrode is characterized in that: at electrode body inside surface and copper electrode surface coverage water accepting layer, aquifer, separation layer.
5. according to the described new long-acting copper of claim 1---the copper sulphate contrast electrode is characterized in that: the wall permeability module is made in cancellation, and the activation stopple made from insulating material substitutes upward permeability module, on an activation stopple catheter interface is installed.
6. according to the described new long-acting copper of claim 5---the copper sulphate contrast electrode is characterized in that: contrast electrode connects water storing tank through conduit, and water storing tank is shaped on catheter interface.
7. according to the described new long-acting copper of claim 5---the copper sulphate contrast electrode is characterized in that: the built-in drainage core of catheter interface and conduit.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168550A (en) * | 2011-03-30 | 2011-08-31 | 江苏方建工程质量鉴定检测有限公司 | Borehole ground potential measuring electrode |
| CN101403761B (en) * | 2008-11-13 | 2013-02-06 | 江苏奥迪康医学科技有限公司 | Totally-enclosed ion-selective reference electrode |
| CN106990147A (en) * | 2017-06-06 | 2017-07-28 | 大连华城电子有限公司 | A kind of combination PH electrode reference liquid permeability apparatus |
| CN114002287A (en) * | 2021-09-29 | 2022-02-01 | 天津哈德韦尔自控技术有限公司 | Long-acting reference electrode |
-
2005
- 2005-10-11 CN CN 200520127302 patent/CN2847283Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403761B (en) * | 2008-11-13 | 2013-02-06 | 江苏奥迪康医学科技有限公司 | Totally-enclosed ion-selective reference electrode |
| CN102168550A (en) * | 2011-03-30 | 2011-08-31 | 江苏方建工程质量鉴定检测有限公司 | Borehole ground potential measuring electrode |
| CN102168550B (en) * | 2011-03-30 | 2013-04-24 | 江苏方建工程质量鉴定检测有限公司 | Borehole ground potential measuring electrode |
| CN106990147A (en) * | 2017-06-06 | 2017-07-28 | 大连华城电子有限公司 | A kind of combination PH electrode reference liquid permeability apparatus |
| CN114002287A (en) * | 2021-09-29 | 2022-02-01 | 天津哈德韦尔自控技术有限公司 | Long-acting reference electrode |
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