CN220542732U - Measuring device for real-time corrosion rate of metal - Google Patents
Measuring device for real-time corrosion rate of metal Download PDFInfo
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- CN220542732U CN220542732U CN202320813772.1U CN202320813772U CN220542732U CN 220542732 U CN220542732 U CN 220542732U CN 202320813772 U CN202320813772 U CN 202320813772U CN 220542732 U CN220542732 U CN 220542732U
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- hydrogen concentration
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- 239000002184 metal Substances 0.000 title claims abstract description 55
- 230000007797 corrosion Effects 0.000 title claims abstract description 50
- 238000005260 corrosion Methods 0.000 title claims abstract description 50
- 239000001257 hydrogen Substances 0.000 claims abstract description 80
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 80
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000000523 sample Substances 0.000 claims abstract description 54
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000002378 acidificating effect Effects 0.000 claims abstract description 35
- 238000012360 testing method Methods 0.000 claims abstract description 32
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 27
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 27
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 23
- 238000002955 isolation Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract description 9
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 239000002253 acid Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The application provides a measuring device of real-time corrosion rate of metal, include: the device comprises a container main body, a polytetrafluoroethylene lining, a sealing cover, a hook and a hydrogen concentration probe; the polytetrafluoroethylene lining is arranged in the container main body, the polytetrafluoroethylene lining is arranged on the inner wall of the container main body and is tightly attached, and the polytetrafluoroethylene lining is used for containing acidic medium solution; the sealing cover is used for sealing the container main body; one end of the hook is arranged on the sealing cover, the hook is used for hanging a metal sheet for testing, and the metal sheet for testing is immersed in the acidic medium solution; the hydrogen concentration probe penetrates through the sealing cover, one end of the hydrogen concentration probe is positioned in the container main body and is arranged at the upper end of the liquid level of the acidic medium solution, and the other end of the hydrogen concentration probe is positioned at the outer side of the container main body. The technical scheme that this application relates to carries out real-time supervision through setting up hydrogen concentration probe to the hydrogen concentration in the container main part, obtains the real-time corrosion rate of test metal sheet, is favorable to in time obtaining metal corrosion rate, improves measurement of efficiency.
Description
Technical Field
The application relates to the technical field of metal corrosion prevention, in particular to a measuring device for real-time corrosion rate of metal.
Background
During the exploitation operation of oil well, the acidification technology is needed to improve the oil yield of the oil, and ensure the stable yield and yield increase of the oil. While this approach increases oil recovery, it also causes irreversible permanent damage to oilfield equipment. During the acidification construction process, the pickling solution is injected into the stratum, so that corrosion phenomena such as hydrogen embrittlement, surface pitting corrosion, pitting corrosion and the like can occur to the metal oil pipe, the casing pipe and underground equipment. The oilfield acidizing technique also causes a series of equipment pipeline corrosion problems while increasing oil and gas production. If the corrosion rate of the pipeline cannot be effectively monitored, serious pollution is caused to the natural environment around the pipeline, and the economic development is hindered.
Therefore, how to realize the real-time monitoring of the metal corrosion rate and improve the monitoring efficiency of the metal corrosion rate becomes a problem to be solved.
The above information disclosed in the background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The application provides a measuring device of real-time corrosion rate of metal for solve the problem that prior art exists.
The application provides a measuring device of real-time corrosion rate of metal, include: the device comprises a container main body, a polytetrafluoroethylene lining, a sealing cover, a hook and a hydrogen concentration probe; the polytetrafluoroethylene lining is arranged in the container main body, the polytetrafluoroethylene lining is arranged on the inner wall of the container main body and is tightly attached, and the polytetrafluoroethylene lining is used for containing acidic medium solution; the sealing cover is used for sealing the container main body so as to ensure that the container main body is sealed; one end of the hook is arranged on the sealing cover, the hook is used for hanging a metal sheet for testing, and the metal sheet for testing is immersed in the acidic medium solution; the hydrogen concentration probe penetrates through the sealing cover, one end of the hydrogen concentration probe is positioned in the container main body and is arranged at the upper end of the liquid level of the acidic medium solution, and the other end of the hydrogen concentration probe is positioned at the outer side of the container main body; the hydrogen concentration probe is for measuring a hydrogen concentration within the container body.
In some embodiments, a protective isolation plate is arranged between the hydrogen concentration probe and the acidic medium solution, the protective isolation plate is arranged at the upper end of the acidic medium solution, and the protective isolation plate is used for isolating the acidic medium solution and the hydrogen concentration probe.
In some embodiments, the protective separator is provided with a through hole, and the through hole is arranged at a position far away from the hydrogen concentration probe.
In some embodiments, the protective isolation plate is arranged on the container main body and is detachably connected with the container main body.
In some embodiments, a sealing strip is provided between the sealing cap and the container body.
In some embodiments, the hydrogen concentration probe is threaded with the seal cap.
In some embodiments, the protective separator is made of polytetrafluoroethylene material.
In some embodiments, the container body is a rigid material.
In some embodiments, the container body is a cylindrical structure.
The application provides a measuring device of real-time corrosion rate of metal, include: the device comprises a container main body, a polytetrafluoroethylene lining, a sealing cover, a hook and a hydrogen concentration probe; the polytetrafluoroethylene lining is arranged in the container main body, the polytetrafluoroethylene lining is arranged on the inner wall of the container main body and is tightly attached, and the polytetrafluoroethylene lining is used for containing acidic medium solution; the sealing cover is used for sealing the container main body so as to ensure that the container main body is sealed; one end of the hook is arranged on the sealing cover, the hook is used for hanging a metal sheet for testing, and the metal sheet for testing is immersed in the acidic medium solution; the hydrogen concentration probe penetrates through the sealing cover, one end of the hydrogen concentration probe is positioned in the container main body and is arranged at the upper end of the liquid level of the acidic medium solution, and the other end of the hydrogen concentration probe is positioned at the outer side of the container main body; the hydrogen concentration probe is for measuring a hydrogen concentration within the container body. The utility model provides a measuring device of real-time corrosion rate of metal utilizes test to use sheetmetal and acid medium solution reaction, generate hydrogen for hydrogen concentration in the container main part increases, and hydrogen concentration is corresponding with the corrosion rate of test sheetmetal in the acid medium solution, through setting up hydrogen concentration probe, carry out real-time supervision to the hydrogen concentration in the measurement container main part, obtain the numerical value size of hydrogen concentration in the container main part, judge the degree that test sheetmetal was corroded according to the numerical value size of hydrogen concentration, obtain the real-time corrosion rate of test sheetmetal, be favorable to in time obtaining the metal corrosion rate of different time points, and improved measurement efficiency.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic structural diagram of a device for measuring real-time corrosion rate of metal.
Reference numerals illustrate:
1. a container body; 2. a polytetrafluoroethylene liner; 3. sealing cover; 4. a hook; 5. a hydrogen concentration probe; 6. an acidic medium solution; 7. a test metal sheet; 8. a protective separator; 9. and a through hole.
Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in the embodiments of the present application, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "first," "second," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" is two or more, unless explicitly defined otherwise.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the scope of the present disclosure, since any structural modifications, proportional changes, or dimensional adjustments made by those skilled in the art should not be made in the present disclosure without affecting the efficacy or achievement of the present disclosure.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.
The following describes the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
The application provides a measuring device of metal real-time corrosion rate, fig. 1 is a schematic structural diagram of the measuring device of metal real-time corrosion rate provided by the application, as shown in fig. 1, including: a container main body 1, a polytetrafluoroethylene lining 2, a sealing cover 3, a hook 4 and a hydrogen concentration probe 5; the polytetrafluoroethylene lining 2 is arranged in the container main body 1, the polytetrafluoroethylene lining 2 is arranged on the inner wall of the container main body 1 and is tightly attached, and the polytetrafluoroethylene lining 2 is used for containing an acidic medium solution 6; the sealing cover 3 is used for sealing the container main body 1 so as to ensure that the container main body 1 is sealed; one end of the hook 4 is arranged on the sealing cover 3, the hook 4 is used for hanging a metal sheet 7 for testing, and the metal sheet 7 for testing is immersed in the acidic medium solution 6; the hydrogen concentration probe 5 penetrates through the sealing cover 3, one end of the hydrogen concentration probe 5 is positioned in the container main body 1 and is arranged at the upper end of the liquid surface of the acidic medium solution 6, and the other end of the hydrogen concentration probe 5 is positioned at the outer side of the container main body 1; the hydrogen concentration probe 5 is used to measure the hydrogen concentration in the container body 1.
The utility model provides a measuring device of real-time corrosion rate of metal utilizes test to use sheetmetal 7 and acid medium solution 6 reaction, generate hydrogen, make the hydrogen concentration in the container main part 1 increase, and hydrogen concentration is corresponding with the corrosion rate of test sheetmetal 7 in the acid medium solution 6, through setting up hydrogen concentration probe 5, carry out real-time supervision to the hydrogen concentration in the measurement container main part 1, obtain the numerical value size of hydrogen concentration in the container main part 1, judge the degree of being corroded by test sheetmetal 7 according to the numerical value size of hydrogen concentration, obtain the real-time corrosion rate of test sheetmetal 7, be favorable to in time obtaining the metal corrosion rate of different time points, and improved measurement efficiency.
In some embodiments, a protective isolation plate 8 is disposed between the hydrogen concentration probe 5 and the acidic medium solution 6, the protective isolation plate 8 is disposed at the upper end of the acidic medium solution 6, and the protective isolation plate 8 is used for isolating the acidic medium solution 6 and the hydrogen concentration probe 5.
Alternatively, in the embodiment of the present application, the hook 4 is a glass hook.
Specifically, in the present embodiment, the glass hooks pass through the protective barrier 8 to submerge the test metal sheet 7 in the acidic medium solution 6.
More specifically, in the embodiment of the present application, the hydrogen concentration probe 5 is a precision probe, and the measurement data can be accurate to 1ppm.
In this embodiment, the hydrogen concentration probe 5 may be further disposed on the container body 1, penetrating through the container body 1 and the polytetrafluoroethylene liner 2, so that one end of the hydrogen concentration probe 5 is disposed on the outer side of the container body 1, and the other end is disposed on the inner side of the polytetrafluoroethylene liner 2 and on the upper end of the liquid surface of the acidic medium solution 6.
It should be further noted that the hydrogen concentration probe 5 in the present application may be implemented based on the prior art, and will not be described herein.
In some embodiments, the protective isolation plate 8 is provided with a through hole 9, and the through hole 9 is disposed at a position away from the hydrogen concentration probe 5.
Specifically, in the embodiment of the present application, the through hole 9 is used to make the hydrogen generated by the reaction between the test metal sheet 7 and the acidic medium solution 6 pass through the protective isolation board 8.
More specifically, in the embodiment of the present application, a plurality of through holes 9 may be provided.
Optionally, in this embodiment, the protective isolation plate 8 is disposed at the lower end of the hydrogen concentration probe 5 and is located at the upper end of the liquid surface of the acidic medium solution 6; the side far away from the hydrogen concentration probe 5 is not provided with the protective isolation plate 8, so that the hydrogen generated in the reaction process is ensured to be rapidly distributed at all positions in the container main body 1, and the measurement efficiency of the hydrogen concentration probe 5 is improved.
In the embodiment of the present application, the protective isolation plate 8 is used to avoid the contact between the acidic medium solution 6 and the hydrogen concentration probe 5, and to prevent the hydrogen concentration probe 5 from being corroded by the acidic medium solution 6.
In some embodiments, the protective isolation plate 8 is disposed on the container body 1, and is detachably connected with the container body 1, so as to facilitate removal.
In some embodiments, a sealing rubber strip is arranged between the sealing cover 3 and the container main body 1, so as to ensure tightness in the container main body 1 and improve accuracy of measurement results.
More specifically, in the embodiment of the present application, a sealing structure is provided between the hydrogen concentration probe 5 and the container body 1.
In some embodiments, the hydrogen concentration probe 5 is in threaded connection with the seal cap 3.
In some embodiments, the protective barrier 8 is made of polytetrafluoroethylene material.
In some embodiments, the container body 1 is a rigid material.
In the embodiment of the present application, the container body 1 has a strong pressure resistance.
In some embodiments, the container body 1 is a cylindrical structure.
Alternatively, in the embodiment of the present application, the container body 1 may also have a cube structure, a cuboid structure, or the like.
The working principle of the measuring device for the real-time corrosion rate of the metal is as follows:
firstly, placing a polytetrafluoroethylene lining 2 in a container body 1 of a rigid cylinder, arranging a test corrosion test piece, namely a test metal sheet 7, on a glass hook of a sealing cover 3, then adding a certain amount of acid medium solution 6 into the container body 1, ensuring that the volume of the added acid medium solution 6 is not more than two thirds of the internal space of the container body 1, completely immersing the test metal sheet 7 in the acid medium solution 6, finally placing a hydrogen concentration probe 5 at the upper end of the liquid surface of the acid medium solution 6, covering the sealing cover 3 on the container body 1, ensuring that the container body 1 is in a sealing state, heating the acid medium solution 6 in the container body 1 to a specified temperature, performing corrosion test, and calculating the real-time corrosion rate of metal by measuring the concentration of hydrogen generated after the reaction of the test metal sheet 7 and the acid medium solution 6 in the container body 1 in real time through a hydrogen concentration probe 5.
In view of the foregoing, the device for measuring the real-time corrosion rate of metal according to the embodiment of the present application uses the test metal sheet 7 to react with the acidic medium solution 6 to generate hydrogen, so that the hydrogen concentration in the container main body 1 is increased, and the hydrogen concentration corresponds to the corrosion rate of the test metal sheet 7 in the acidic medium solution 6, and by setting the hydrogen concentration probe 5, the hydrogen concentration in the container main body 1 is monitored in real time to obtain the value of the hydrogen concentration in the container main body 1, and the degree of corrosion of the test metal sheet 7 is determined according to the value of the hydrogen concentration, so that the real-time corrosion rate of the test metal sheet 7 is obtained, which is favorable for timely obtaining the metal corrosion rates at different time points, and improves the measurement efficiency; the measuring device is simple to operate, low in cost and suitable for monitoring the real-time corrosion rate of the metal in the acidic medium solution 6 in different occasions.
The technical scheme related to the application can also be used as a monitoring device for the metal corrosion rate in the acidic medium solution 6 after the acidizing corrosion inhibitor is added, and is used for evaluating the real-time corrosion inhibition effect of the acidizing corrosion inhibitor.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (9)
1. A device for measuring the real-time corrosion rate of a metal, comprising: the device comprises a container main body, a polytetrafluoroethylene lining, a sealing cover, a hook and a hydrogen concentration probe;
the polytetrafluoroethylene lining is arranged in the container main body, the polytetrafluoroethylene lining is arranged on the inner wall of the container main body and is tightly attached, and the polytetrafluoroethylene lining is used for containing acidic medium solution;
the sealing cover is used for sealing the container main body so as to ensure that the container main body is sealed;
one end of the hook is arranged on the sealing cover, the hook is used for hanging a metal sheet for testing, and the metal sheet for testing is immersed in the acidic medium solution;
the hydrogen concentration probe penetrates through the sealing cover, one end of the hydrogen concentration probe is positioned in the container main body and is arranged at the upper end of the liquid level of the acidic medium solution, and the other end of the hydrogen concentration probe is positioned at the outer side of the container main body; the hydrogen concentration probe is for measuring a hydrogen concentration within the container body.
2. The device for measuring the real-time corrosion rate of metal according to claim 1, wherein a protective isolation plate is arranged between the hydrogen concentration probe and the acidic medium solution, the protective isolation plate is arranged at the upper end of the acidic medium solution, and the protective isolation plate is used for isolating the acidic medium solution and the hydrogen concentration probe.
3. The apparatus for measuring the real-time corrosion rate of a metal according to claim 2, wherein the shielding and isolating plate is provided with a through hole, and the through hole is provided at a position away from the hydrogen concentration probe.
4. The apparatus for measuring the real-time corrosion rate of a metal according to claim 3, wherein the protective isolation plate is provided on the container body and is detachably connected to the container body.
5. The apparatus for measuring the real-time corrosion rate of a metal according to claim 1, wherein a sealing rubber strip is provided between the sealing cover and the container body.
6. The apparatus for measuring the real-time corrosion rate of a metal according to claim 1, wherein the hydrogen concentration probe is in threaded connection with the seal cap.
7. The apparatus for measuring the real-time corrosion rate of a metal according to any one of claims 2 to 4, wherein the protective separator is made of polytetrafluoroethylene material.
8. The apparatus for measuring the real-time corrosion rate of a metal according to claim 1, wherein the container body is made of a rigid material.
9. The apparatus for measuring the real-time corrosion rate of a metal according to claim 1, wherein the container body has a cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320813772.1U CN220542732U (en) | 2023-04-13 | 2023-04-13 | Measuring device for real-time corrosion rate of metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320813772.1U CN220542732U (en) | 2023-04-13 | 2023-04-13 | Measuring device for real-time corrosion rate of metal |
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| Publication Number | Publication Date |
|---|---|
| CN220542732U true CN220542732U (en) | 2024-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320813772.1U Active CN220542732U (en) | 2023-04-13 | 2023-04-13 | Measuring device for real-time corrosion rate of metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220542732U (en) |
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2023
- 2023-04-13 CN CN202320813772.1U patent/CN220542732U/en active Active
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