CN202339333U - Metal can for in-situ electrochemical detection - Google Patents
Metal can for in-situ electrochemical detection Download PDFInfo
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- CN202339333U CN202339333U CN2012200069253U CN201220006925U CN202339333U CN 202339333 U CN202339333 U CN 202339333U CN 2012200069253 U CN2012200069253 U CN 2012200069253U CN 201220006925 U CN201220006925 U CN 201220006925U CN 202339333 U CN202339333 U CN 202339333U
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- auxiliary electrode
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Abstract
The utility model provides a metal can for an in-situ electrochemical detection. The metal can comprises a sealed can body, wherein an insulating electrode pole is fixedly penetrated in the can body; the top end of the insulating electrode pole is positioned outside the can body and is fixedly provided with an auxiliary electrode connecting terminal and a reference electrode connecting terminal respectively; a cylindrical auxiliary electrode is fixedly sleeved on a side face of the insulating electrode pole; a reference electrode is fixedly embedded in the bottom end of the insulating electrode pole; the auxiliary electrode and the reference electrode are positioned in the can body; the auxiliary electrode is connected with the auxiliary electrode connecting terminal through an auxiliary electrode lead; and the reference electrode is connected with the reference electrode connecting terminal through a reference electrode lead. According to the metal can for the in-situ electrochemical detection provided by the utility model, in-situ electrochemical detection is performed without opening or damaging the metal can, so that the interference of an oxidation effect of air on solution to a detection result is eliminated, a development process for corrosion in the metal can is truly reflected, and further the residual life of products produced in the same batch is more accurately presumed.
Description
Technical field
The utility model relates to the electrochemical corrosion test technology, relates in particular to a kind of electrochemical in-situ detection and uses metal can.
Background technology
The metal can regular meeting that is used for ccontaining liquid is by the liquid corrosion in it.With the metallic beverage can is example; Solution in it has corrosivity usually; Thereby make metallic beverage can be easy to its in solution generation electrochemical reaction cause the corrosion of metallic beverage can, and when the corrosion condition of metallic beverage can (for example tinplate process beverage can) surpassed to a certain degree, the ferric ion of separating out because of electrochemical reaction in the solution in it also can surpass limit value; Make this solution (being beverage) supply the people to drink again, promptly corrosion failure has taken place in beverage in the shelf-life.For this reason, need in the shelf-life, utilize electrochemical workstation regularly the corrosion condition in the metallic beverage can be detected and evaluates.
When in the prior art metallic beverage can being carried out its internal corrosion condition detection; Need the top cover of metallic beverage can be opened (when metallic beverage can is the hermetically-sealed construction of top cover and tank body composition); Or with metallic beverage can destruction (when metallic beverage can is the integral type hermetically-sealed construction); Place the solution of metal beverage tank body with contrast electrode that electro-chemical test is required and auxiliary electrode; Again contrast electrode is connected with electrochemical workstation through lead with auxiliary electrode, thereby constructs the three-electrode electro Chemical measuring system.
Because this Electrochemical Detection to metal beverage in-tank corrosion situation of the prior art must be opened the top cover of metallic beverage can or destroy metallic beverage can; Make the solution in it to be exposed at once in the air; And air is to the serious disturbed test result of oxidation meeting of solution; And the metallic beverage can state of living in after the test is also no longer identical with other metallic beverage can of not opening; Can't truly reflect the evolution of metal beverage in-tank corrosion, thereby also can cause the residual life of beverage ccontaining in the same batch of metallic beverage can of producing can't reliably inferring out.
The utility model content
The utility model provides a kind of electrochemical in-situ to detect and uses metal can; Comprise that one is used for the tank body of shell shape of the sealing of ccontaining liquid; Fixedly be equipped with an insulated electro pole on the said tank body; The top of said insulated electro pole is positioned at outside the said tank body, and said insulated electro pole is positioned on the outer top of said tank body and also is set with an auxiliary electrode connection terminal and a contrast electrode connection terminal respectively; The side fixed cover of said insulated electro pole is provided with the auxiliary electrode of the tubular that is complementary with the side view of said insulated electro pole; Fixedly be embedded a contrast electrode in the bottom of said insulated electro pole and in the central axis of said insulated electro pole; Said auxiliary electrode and said contrast electrode all are positioned at the containing cavity that said tank interior is used for ccontaining liquid; Said auxiliary electrode is connected with said auxiliary electrode connection terminal through the auxiliary electrode lead-in wire, and said contrast electrode is connected with said contrast electrode connection terminal through the contrast electrode lead-in wire.
Aforesaid electrochemical in-situ detects and uses metal can, and wherein, said tank body is cylindric, and said insulated electro pole fixedly is located on the end face or bottom surface of said tank body.
Aforesaid electrochemical in-situ detects and uses metal can, wherein, offers the installation through holes that is used to wear said insulated electro pole on the end face of said tank body or the bottom surface, and said installation through holes internal fixation is equipped with an insulation threaded line pipe; Said insulated electro pole is a cylinder; The top of said cylinder extends to form the stopper section of level towards periphery; Side near the said cylinder of said stopper section offers screw thread; Said auxiliary electrode connection terminal and said contrast electrode connection terminal fixedly are embedded respectively on the end face of said stopper section, and said auxiliary electrode is connected with the contrast electrode connection terminal with said auxiliary electrode connection terminal with the contrast electrode lead-in wire through being arranged on the inner said auxiliary electrode lead-in wire of said insulated electro pole respectively with contrast electrode; Said insulated electro pole is screwed onto in the said insulation threaded line pipe, and said insulation threaded line pipe is stretched out in the bottom that said insulated electro pole is provided with said auxiliary electrode and said contrast electrode.
Aforesaid electrochemical in-situ detects and uses metal can, wherein, is provided with sealant layer between said stopper section and the said tank body.
Aforesaid electrochemical in-situ detects and uses metal can, and wherein, said auxiliary electrode is a stainless steel cylinder, and said stainless steel cylinder and said insulated electro pole are fixedly connected into one.
Aforesaid electrochemical in-situ detects and uses metal can, wherein, offers a plurality of through holes on the said auxiliary electrode.
Aforesaid electrochemical in-situ detects and uses metal can, and wherein, said insulated electro pole is a plastic cylinder, and said insulation threaded line pipe is a plastic screwed pipe.
Aforesaid electrochemical in-situ detects and uses metal can, and wherein, said contrast electrode is silver/silver chloride solid reference electrode.
The electrochemical in-situ that the utility model provides detects uses metal can; Can be repeatedly, continuously this metal can is carried out electrochemical in-situ and detects; Owing to just can carry out the electrochemical in-situ detection after must opening or destroy metal can need not in prior art; Thereby guaranteed that each detects appearance and still is in testing process and after detecting and the other products identical ambient condition of batch production together; Eliminated air to the interference of the oxidation of solution, truly reflected the evolution of metal can internal corrosion testing result, thereby; Just can infer more exactly with batch residual life of the product of producing, and the foundation more reliably that also provides for the anti-corrosion treatment technology of further improving metal can.
Description of drawings
Fig. 1 detects the structural representation with metal can for the utility model electrochemical in-situ.
Embodiment
Present embodiment provides a kind of electrochemical in-situ to detect and uses metal can; Please with reference to Fig. 1; Comprise that one is used for the tank body 10 of shell shape of the sealing of ccontaining liquid; Fixedly be equipped with an insulated electro pole 2 on the tank body 10, the top of insulated electro pole 2 is positioned at outside the tank body 10, and insulated electro pole 2 is positioned on the top outside the tank body 10 and also is set with an auxiliary electrode connection terminal 21 and a contrast electrode connection terminal 22 respectively; The side fixed cover of insulated electro pole 2 is provided with the auxiliary electrode 23 of the tubular that is complementary with the side view of insulated electro pole 2; Fixedly be embedded a contrast electrode 24 in the bottom of insulated electro pole 2 and in the central axis of insulated electro pole; Auxiliary electrode 23 all is positioned at the containing cavity that tank body 10 inside are used for ccontaining liquid with contrast electrode 24; Auxiliary electrode 23 is connected with auxiliary electrode connection terminal 21 through auxiliary electrode lead-in wire 231, and contrast electrode 24 goes between through contrast electrode and 242 is connected with contrast electrode connection terminal 22.
Particularly, tank body 10 can be for being designed to difformity as required, and for example cylindrical, cube shaped, perhaps other any irregular shape needs only the seal casinghousing that its inside has the containing cavity of contain fluid; Certainly, the seal that tank body 10 can be formed in one, also can by the tank body matrix of a top end opening be fixedly installed on the seal that the gland bonnet on the top is formed.Insulated electro pole 2 can be right cylinder or prism; Preferably; Can on end face, bottom surface or the side of tank body 10, offer the through hole that matches with the shape of cross section of insulated electro pole 2; Again insulated electro pole 2 fixedly is located in this through hole, and guarantee between insulated electro pole 2 and this through-hole side wall excellent sealing; Auxiliary electrode 23 can be the tubular of both ends open, and the side of its shape and insulated electro pole 2 is complementary, for example; When insulated electro pole 2 was cylinder, auxiliary electrode 23 can be a cylindrical drum, when insulated electro pole 2 is prism; The barrel of auxiliary electrode 23 also can be arranged to corresponding prism-shaped; Optimally, auxiliary electrode 23 can be the stainless steel cylinder of being processed by stainless steel, and this stainless steel cylinder can be fixedly connected with insulated electro pole 2 and is integral.Contrast electrode 24 can fixedly be embedded the bottom center place at insulated electro pole 2; To guarantee that it can not contact with the auxiliary electrode 23 of the side that is arranged on insulated electro pole 2; Wherein, contrast electrode 24 can adopt contrast electrodes such as platinum wire or solid long-term-effective silver/silver chloride to get final product; In addition, auxiliary electrode lead-in wire 231 and contrast electrode lead-in wire 242 can be arranged on the inside of insulated electro pole 2, or offer groove to be embedded auxiliary electrode lead-in wire 231 and contrast electrode lead-in wire 242 in the side of insulated electro pole 2.
The electrochemical in-situ that present embodiment provides detects following with the use of metal can, can in same batch of beverage production process, adopt several this original position Electrochemical Detection to come ccontaining drink soln with metal can, with the detection sample as this batch beverage; Then, in the shelf-life, can regularly these be detected sample and take out, utilize detection this original position Electrochemical Detection that sample adopted to come sample is carried out Electrochemical Detection with metal can; Concrete Electrochemical Detection process is following; The auxiliary electrode connection terminal 21 that will be in the top of the insulated electro pole 2 outside the tank body 10 is connected to electrochemical workstation respectively with contrast electrode connection terminal 22; So that tank body 10, be in the tank body 10 auxiliary electrode 23 in the solution and contrast electrode 24 and form the three-electrode electro Chemical test systems, measure thereby accomplish the corrosion electrochemistry parameters in situ; Just can infer the residual life of this detection sample and this batch products according to the data that record.
The electrochemical in-situ that this enforcement provides detects uses metal can; Can this metal can carried out electrochemical in-situ detect not opening under the situation of also not destroying metal can; Each detection sample still is in the identical ambient condition of other products with same batch production in testing process and after detecting; Eliminated air to the interference of the oxidation of solution, can truly reflect the evolution of metal can internal corrosion, thereby make the residual life of the same batch of product of producing of inferring out more accurate testing result.
In the utility model one embodiment, as shown in Figure 1, offer the installation through holes that is used to wear insulated electro pole 2 on the end face of tank body 10 or the bottom surface, the installation through holes internal fixation is equipped with an insulation threaded line pipe 3; Insulated electro pole 2 is a cylinder; The top of cylinder extends to form the stopper section 201 of level towards periphery; Side near the cylinder of stopper section 201 offers screw thread; Auxiliary electrode connection terminal 21 fixedly is embedded respectively on the end face of stopper section 201 with contrast electrode connection terminal 22, and auxiliary electrode 23 and contrast electrode 24 go between and 231 go between with contrast electrode and 242 to be connected with contrast electrode connection terminal 22 with auxiliary electrode connection terminal 21 through being arranged on insulated electro pole 2 inner auxiliary electrodes respectively; Insulated electro pole 2 is screwed onto in the insulation threaded line pipe 3, and insulation threaded line pipe 3 is stretched out in the bottom that insulated electro pole 2 is provided with auxiliary electrode 23 and contrast electrode 24.Preferably, insulated electro pole 2 can be respectively plastic cylinder and plastic cylinder pipe with insulation threaded line pipe 3, and particularly, plastics can adopt ABS or polytetrafluoroethylplastic plastic, chemical reaction can not take place to obtain the good insulation performance performance and can guarantee with solution.Present embodiment is through the insulation threaded line pipe 3 fixed insulation electrode column 2 that is spirally connected, and makes that this original position Electrochemical Detection is more simple with the process of metal can, makes things convenient for, and also helps practicing thrift manufacturing cost.
In the above-described embodiments; Be provided with sealant layer 12 between stopper section 201 and the tank body 10; Particularly, sealing glue can be epoxide-resin glue, can before insulated electro pole 2 is penetrated into tank body 10, spread upon stopper section 201 and reach on the tank body 10 on every side; Thereby further guarantee the sealing of this original position Electrochemical Detection, prevent the oxidized function influence of its inner solution with metal can.
Further, can offer a plurality of through holes on the auxiliary electrode 23, even 23 one-tenth one reticulate textures of whole auxiliary electrode to increase the contact area of auxiliary electrode 23 and solution, further improve the electric conductivity of auxiliary electrode, thereby further improve the testing result precision.
Further, contrast electrode 24 can be silver/silver chloride solid reference electrode, with the stability of further raising test.
What should explain at last is: above each embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to aforementioned each embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (8)
1. an electrochemical in-situ detects and uses metal can; It is characterized in that; Comprise that one is used for the tank body of shell shape of the sealing of ccontaining liquid; Fixedly be equipped with an insulated electro pole on the said tank body, the top of said insulated electro pole is positioned at outside the said tank body, and said insulated electro pole is positioned on the outer top of said tank body and also is set with an auxiliary electrode connection terminal and a contrast electrode connection terminal respectively; The side fixed cover of said insulated electro pole is provided with the auxiliary electrode of the tubular that is complementary with the side view of said insulated electro pole; Fixedly be embedded a contrast electrode in the bottom of said insulated electro pole and in the central axis of said insulated electro pole; Said auxiliary electrode and said contrast electrode all are positioned at the containing cavity that said tank interior is used for ccontaining liquid; Said auxiliary electrode is connected with said auxiliary electrode connection terminal through the auxiliary electrode lead-in wire, and said contrast electrode is connected with said contrast electrode connection terminal through the contrast electrode lead-in wire.
2. electrochemical in-situ according to claim 1 detects and uses metal can, it is characterized in that said tank body is cylindric, and said insulated electro pole fixedly is located on the end face or bottom surface of said tank body.
3. electrochemical in-situ according to claim 2 detects and uses metal can, it is characterized in that, offers the installation through holes that is used to wear said insulated electro pole on the end face of said tank body or the bottom surface, and said installation through holes internal fixation is equipped with an insulation threaded line pipe; Said insulated electro pole is a cylinder; The top of said cylinder extends to form the stopper section of level towards periphery; Side near the said cylinder of said stopper section offers screw thread; Said auxiliary electrode connection terminal and said contrast electrode connection terminal fixedly are embedded respectively on the end face of said stopper section, and said auxiliary electrode is connected with the contrast electrode connection terminal with said auxiliary electrode connection terminal with the contrast electrode lead-in wire through being arranged on the inner said auxiliary electrode lead-in wire of said insulated electro pole respectively with contrast electrode; Said insulated electro pole is screwed onto in the said insulation threaded line pipe, and said insulation threaded line pipe is stretched out in the bottom that said insulated electro pole is provided with said auxiliary electrode and said contrast electrode.
4. electrochemical in-situ according to claim 3 detects and uses metal can, it is characterized in that, is provided with sealant layer between said stopper section and the said tank body.
5. use metal can according to claim 1 or 2 or 3 or 4 described electrochemical in-situs detections, it is characterized in that said auxiliary electrode is a stainless steel cylinder, said stainless steel cylinder and said insulated electro pole are fixedly connected into one.
6. electrochemical in-situ according to claim 5 detects and uses metal can, it is characterized in that, offers a plurality of through holes on the said auxiliary electrode.
7. electrochemical in-situ according to claim 3 detects and uses metal can, it is characterized in that said insulated electro pole is a plastic cylinder, and said insulation threaded line pipe is a plastic screwed pipe.
8. use metal can according to claim 1 or 2 or 3 or 4 or 7 described electrochemical in-situs detections, it is characterized in that said contrast electrode is silver/silver chloride solid reference electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200069253U CN202339333U (en) | 2012-01-09 | 2012-01-09 | Metal can for in-situ electrochemical detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200069253U CN202339333U (en) | 2012-01-09 | 2012-01-09 | Metal can for in-situ electrochemical detection |
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| Publication Number | Publication Date |
|---|---|
| CN202339333U true CN202339333U (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200069253U Expired - Lifetime CN202339333U (en) | 2012-01-09 | 2012-01-09 | Metal can for in-situ electrochemical detection |
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| Country | Link |
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| CN (1) | CN202339333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830058A (en) * | 2012-09-04 | 2012-12-19 | 奥瑞金包装股份有限公司 | Metal can and electrochemical device for detecting corrosion strength of same |
-
2012
- 2012-01-09 CN CN2012200069253U patent/CN202339333U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830058A (en) * | 2012-09-04 | 2012-12-19 | 奥瑞金包装股份有限公司 | Metal can and electrochemical device for detecting corrosion strength of same |
| CN102830058B (en) * | 2012-09-04 | 2015-06-24 | 奥瑞金包装股份有限公司 | Metal can and electrochemical device for detecting corrosion strength of same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 101407 Beijing Huairou District wild goose Industrial Development Zone Patentee after: Origen Polytron Technologies Inc Address before: 101407 No. 7 Nan Yi Street, Yan Xi economic development zone, Huairou District, Beijing Patentee before: ORG Packaging Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120718 |
|
| CX01 | Expiry of patent term |