CN215678036U - Corrosion rate detection probe - Google Patents
Corrosion rate detection probe Download PDFInfo
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- CN215678036U CN215678036U CN202122147618.9U CN202122147618U CN215678036U CN 215678036 U CN215678036 U CN 215678036U CN 202122147618 U CN202122147618 U CN 202122147618U CN 215678036 U CN215678036 U CN 215678036U
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Abstract
The utility model relates to the technical field of detection probes, and provides a corrosion rate detection probe. The utility model is a corrosion rate detection probe, comprising: the corrosion-resistant pipeline comprises a shell, an exposed corrosion metal sheet, a non-exposed corrosion metal sheet and a signal cable, wherein a non-exposed corrosion test piece is arranged in the shell, the exposed corrosion test piece is embedded in the surface of the shell, and the exposed corrosion test piece and the non-exposed corrosion test piece are connected with the signal cable arranged at one end of the shell in series through a lead.
Description
Technical Field
The utility model relates to the technical field of detection probes, in particular to a corrosion rate detection probe.
Background
With the development of economy, the application of urban pipe networks and oil and gas long-distance pipelines of high-efficiency safe energy transmission means is more and more extensive.
Corrosion is an important factor affecting the reliability and service life of pipeline transportation systems, and corrosion damage often causes huge economic loss and serious social consequences. At present, aiming at the corrosion monitoring problem of long-distance pipelines, the external corrosion rate of the pipelines is usually monitored by utilizing the existing external corrosion rate monitoring device through a monitoring hole method, a hanging piece weight loss method, a resistance probe method, an electrochemical method, an electromagnetic induction method and other corrosion monitoring methods.
Buried metal pipelines are buried in wet underground for a long time, rust corrosion is inevitably generated, the service life of the pipelines is seriously influenced, and leakage accidents can occur after the pipelines are corroded to a certain degree, so that pollution and safety threats are caused to the surrounding environment. However, since the portions of the pipeline that are severely corroded are buried in the ground, it is difficult to observe the corroded portions.
SUMMERY OF THE UTILITY MODEL
The buried metal pipeline is buried in a humid underground for a long time, rust corrosion is inevitably generated, the service life of the pipeline is seriously influenced, and when the pipeline is corroded to a certain degree, leakage accidents can occur, so that the pollution and the safety threat to the surrounding environment are caused. However, since the pipeline parts with serious corrosion are buried underground, the problem of corrosion is difficult to observe, and the utility model provides a corrosion rate detection probe to solve the problem.
A corrosion rate detection probe comprising: the corrosion test device comprises a shell, a bare corrosion metal sheet, a non-bare corrosion metal sheet and a signal cable, wherein a non-bare corrosion test piece is arranged inside the shell, a bare corrosion test piece is embedded in the surface of the shell, and the bare corrosion test piece and the non-bare corrosion test piece are connected in series through a wire and connected with the signal cable arranged at one end of the shell.
Preferably, the housing is made of an insulating material.
Preferably, the exposed corrosion metal sheet is the same as the material of the buried metal pipeline to be detected.
Preferably, the exposed corrosion metal sheet and the non-exposed corrosion metal sheet are the same in material and size.
The utility model has the advantages that: the utility model adopts metal material consistent with the pipeline as a detection probe, is buried near the pipeline, is in equipotential connection with the pipeline through a cable, is theoretically consistent with the corrosion degree of the pipeline, and can calculate the sectional area and the corroded degree of the probe by measuring the resistance value of the probe as the sectional area of the probe becomes smaller along with the corrosion degree and the resistance value is increased.
Drawings
FIG. 1 is an isometric view of the structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
1. a housing; 2. exposing the corrosion metal sheet; 3. the corrosion metal sheet is not exposed; 4. a signal cable.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the installation methods and technical terms mentioned in the present invention are technical terms that are already clearly known in the technical field, and thus, the explanation thereof is not repeated. Moreover, the same reference numerals are used for the same components, which do not affect and should not constitute an exact understanding of the technical solutions for a person skilled in the art.
The first embodiment is described with reference to fig. 1 and 2:
a corrosion rate detection probe comprising: the corrosion detection device comprises a shell 1, an exposed corrosion metal sheet 2, a non-exposed corrosion metal sheet 3 and a signal cable 4, wherein the non-exposed corrosion test sheet 3 is arranged in the shell 1, the exposed corrosion test sheet 2 is embedded in the surface of the shell 1, the exposed corrosion test sheet 2 and the non-exposed corrosion test sheet 3 are connected with the signal cable 4 arranged at one end of the shell 1 in series through a lead, and thus, the utility model adopts the exposed corrosion metal sheet 2 consistent with a pipeline as a detection probe and is embedded near the pipeline, equipotential connection is carried out between the signal cable 4 and the pipeline, the exposed corrosion metal sheet 2 is theoretically consistent with the corrosion degree of the pipeline, as the sectional area of the exposed corrosion metal sheet 2 is reduced along with the corrosion degree, the resistance value of the exposed corrosion metal sheet 2 is increased, and the sectional area and the corrosion degree of the exposed corrosion metal sheet 2 can be calculated by measuring the resistance value of the non-exposed corrosion metal sheet 3 in series connection with the exposed corrosion metal sheet 2, thereby determining the corrosion degree of the pipeline.
The second embodiment is explained with reference to fig. 1 and 2 on the basis of the first embodiment:
the shell 1 is made of insulating materials, so that the metal sheet 3 which is not exposed to corrosion can be prevented from being electrified, and the deviation of measured data is avoided.
In the third embodiment, the following description is made with reference to fig. 1 and 2 on the basis of the second embodiment:
the exposed corrosion metal sheet 2 is the same as the buried metal pipeline to be detected in material, so that the corrosion degree of the exposed corrosion metal sheet 2 is consistent with that of the pipeline, and the corrosion degree of the pipeline can be determined by detecting the exposed corrosion metal sheet 2.
In the fourth embodiment, the following description is made with reference to fig. 1 and 2 on the basis of the third embodiment:
the exposed corrosion metal sheet 2 and the non-exposed corrosion metal sheet 3 are the same in material and size, the non-exposed corrosion metal sheet 3 and the exposed corrosion metal sheet 2 are connected in series, when current is applied to the current input loop, the currents of the two metal sheets are the same, the ratio of the voltage drops generated by the two metal sheets is also the resistance ratio of the two test sheets, the voltage ratio of the exposed corrosion metal sheet 2 to the non-exposed corrosion metal sheet 3 multiplied by the thickness of the test sheet before delivery is the remaining thickness of the current exposed corrosion metal sheet 2, and the corrosion degree of the pipeline is measured by calculating the thickness of the exposed corrosion metal sheet 2.
The working principle of the utility model is as follows: the utility model provides a corrosion rate detects probe, shell 1 is inside to be provided with not exposing corrosion test block 3, and the surface of shell 1 is buried and is exposed corrosion test block 2, and exposed corrosion test block 2 is established ties through the wire with not exposing corrosion test block 3 and is connected with the signal cable 4 that sets up in shell 1 one end, and not exposing corrosion metal piece 3 is the series connection with exposing corrosion metal piece 2, when the current input return circuit to equipment applys the electric current, because the electric current of two sheetmetals is the same, the ratio of the voltage drop that two sheetmetals produced is the resistance ratio of two coupons, and the voltage ratio of exposing corrosion metal piece 2 and not exposing corrosion metal piece 3 multiplies the thickness that the test block before dispatching from the factory is the remaining thickness of present exposing corrosion metal piece 2.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.
Claims (4)
1. A corrosion rate detection probe, comprising: the cable comprises a shell (1), exposed corrosion metal sheets (2), non-exposed corrosion metal sheets (3) and a signal cable (4), wherein the non-exposed corrosion metal sheets (3) are arranged inside the shell (1), the exposed corrosion metal sheets (2) are embedded on the surface of the shell (1), and the exposed corrosion metal sheets (2) and the non-exposed corrosion metal sheets (3) are connected with the signal cable (4) arranged at one end of the shell (1) in series through a wire.
2. A corrosion rate detecting probe according to claim 1, wherein the housing (1) is of an insulating material.
3. A corrosion rate detection probe according to claim 1, wherein the bare corrosion metal plate (2) is of the same material as the buried metal pipeline being tested.
4. A corrosion rate detecting probe according to claim 1, wherein the exposed corrosion metal sheet (2) and the non-exposed corrosion metal sheet (3) are of the same material and size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122147618.9U CN215678036U (en) | 2021-09-07 | 2021-09-07 | Corrosion rate detection probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122147618.9U CN215678036U (en) | 2021-09-07 | 2021-09-07 | Corrosion rate detection probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215678036U true CN215678036U (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122147618.9U Active CN215678036U (en) | 2021-09-07 | 2021-09-07 | Corrosion rate detection probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215678036U (en) |
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2021
- 2021-09-07 CN CN202122147618.9U patent/CN215678036U/en active Active
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