CN210863483U - Detection device for evaluating uniform corrosion of metal material - Google Patents
Detection device for evaluating uniform corrosion of metal material Download PDFInfo
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- CN210863483U CN210863483U CN201921184641.1U CN201921184641U CN210863483U CN 210863483 U CN210863483 U CN 210863483U CN 201921184641 U CN201921184641 U CN 201921184641U CN 210863483 U CN210863483 U CN 210863483U
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Abstract
The utility model discloses a detection device for aassessment metal material homogeneous corrosion, including being located the matrix collection system who detects metal surface, the matrix collection system includes at least one acquisition unit, every acquisition unit includes a vortex sensor, detection device still include with the vortex detector and the connection that vortex sensor is connected the database management device of matrix collection system and vortex detector. The utility model discloses a detection device for aassessment metal material evenly corrodes, through setting up the matrix collection system who is used for data acquisition and the database management device that is connected with matrix collection system, can be more intelligent, more timely, time and the degree of corrosion that even corrosion takes place for aassessment metal material accurate and science, effectively avoided metal material's further corrosion to worsen, and can need not artifical entering measurement of observing on the spot, be applicable to in some high temperatures, the adverse circumstances such as high radiation.
Description
Technical Field
The utility model belongs to the technical field of the detection of the even corrosion state in metal material surface, concretely relates to a detection device for aassessment metal material homogeneous corrosion.
Background
Corrosion refers to the physical-chemical interaction between a metal and the environment, with the result that the properties of the metal change and often the function of the metal, the environment or the technical system of which they form part is impaired. In industrial production, the problem of failure of equipment, parts and the like caused by corrosion of metal materials often exists, and serious threat is caused to production safety.
Metal corrosion is generally classified into homogeneous corrosion, which is the most common corrosion form, and localized corrosion, which is characterized by the fact that corrosion occurs at almost the same rate over the entire surface of the metal. In a wet atmosphere, the surface of a metal generally loses the metallic white and bright luster after the metal is corroded, and the color changes, for example, the surface of carbon steel changes from white and bright color to brownish red (Fe) after the carbon steel is corroded in an aqueous environment2O3) Or black (Fe)3O4). The method can know and master the uniform corrosion condition of the metal material in time, and has important significance for preventing the further corrosion deterioration of the metal material. Accordingly, there is a need for a corresponding apparatus and method for assessing corrosion of metallic materials.
At present, methods related to assessment of uniform corrosion of metal materials are mainly carried out by visually inspecting the corrosion condition of the metal surface or measuring the metal thinning condition, and have disadvantages, such as the visual inspection is often influenced by human subjective factors, the assessment result is interfered, and the uniform corrosion condition of the metal materials cannot be found in time due to the limitation of personnel inspection frequency; although the method for measuring the metal thinning is slightly influenced by human subjectivity, the long-term stay or entry of personnel is limited in some areas which are high in heat, high in radiation and the like and not beneficial to human safety, and the uniform corrosion condition of the material cannot be evaluated timely and effectively.
Disclosure of Invention
In view of this, in order to overcome the defect of prior art, the utility model aims at providing a detection device for assessing even corrosion of metal material, its can be more timely, the even corrosion condition of scientific, accurate aassessment metal material, and can be applicable to in some adverse circumstances such as high temperature, high radiation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a detection apparatus for be used for aassessment metal material homogeneous corrosion, waits to detect the matrix collection system of metal surface including being located, the matrix collection system includes a plurality of acquisition units that are the matrix and arrange, every acquisition unit is including being used for the control wait to detect the distance sensor of metal surface thickness, detection apparatus still include with distance sensor links to each other and is used for with it turns into the detector and the connection of the signal of telecommunication to wait to detect the change of metal surface thickness the database management device of matrix collection system and detector. The detector is periodically started and excites the distance sensor to monitor and acquire the eddy current detection signal of the detected metal. Through setting up the matrix collection system who is used for data acquisition and the database management device that is connected with matrix collection system, the time and the degree of corrosion that even corrosion takes place for the aassessment metal material that can be more timely, accurate and scientific, and can need not artifical measurement that gets into observation on the spot, be applicable to in some severe environment such as high temperature, high radiation.
Preferably, the collecting unit further comprises a camera and a lamp source for shooting the metal surface to be detected, the collecting unit is fixed on the metal surface to be detected through a support, and the adjacent collecting units are connected through the support. The camera and the light source in the matrix type acquisition device are directly connected with the database management device; the distance sensor in the matrix type acquisition device is connected with the detector, and the detector is connected with the database management device. Initial photographing is carried out through the camera, and the photographed picture is transmitted to the database management device and stored as a reference picture. And then, the camera shoots regularly at preset intervals, the shot pictures are transmitted to the database management device, the database management device receives the pictures shot in real time so that a person can check the pictures at any time, and the person can compare the pictures shot in real time with prestored reference pictures to judge whether the metal material is uniformly corroded and the corrosion degree.
More preferably, the collecting units are arranged at the position where the brackets intersect with each other, and are arranged in parallel or vertically adjacent to the brackets.
Further preferably, the distance sensor is arranged at a position where the brackets intersect, the light source is arranged on the left side of the distance sensor, and the camera is arranged above the distance sensor.
More preferably, the length of the support is consistent, and the distance between the adjacent acquisition units is consistent. Because the length of the bracket is consistent, the distances between the adjacent acquisition units are equal, and the distances between all the acquisition units and the metal surface to be detected are also equal, namely, the acquisition units are arranged on the metal surface to be detected in a matrix manner.
In some embodiments, the brackets between adjacent collecting units can also be arranged in an arc shape, so that the detection device can be applied to non-planar metal surfaces to be detected, such as pipelines, and the application range of the detection device is further expanded.
Preferably, the detection device further comprises an alarm device connected with the database management device. By arranging the alarm device, when the eddy current sensor in the acquisition unit detects that the thickness of the metal surface to be detected is lower than a set value, the database management device controls the alarm device to give an alarm.
Preferably, the distance sensor is an eddy current sensor, and the detector is an eddy current detector. The eddy current sensor can measure the distance between a measured metal conductor and the surface of the probe in a non-contact, high-linearity and high-resolution mode and is used for detecting the thickness condition of the metal to be detected; the eddy current detector is used for periodically starting and exciting the eddy current sensor to monitor and collect eddy current detection signals of metal to be detected, converting the eddy current detection signals of the metal to be detected into electric signals and transmitting the electric signals to the database management device, the database management device receives the electric signals and makes an amplitude parameter time change curve of the electric signals, and when the amplitude of the electric signals is reduced, namely the amplitude of the eddy current detection signals is reduced, the thinning of the thickness of the metal to be detected is indicated.
In specific implementation application, the distance between the acquisition unit and the metal surface to be detected is determined according to the principle that the metal surface is clearly shot by an actual camera and the current signal caused by the change of the metal thickness can be accurately detected by the eddy current sensor; the installation number of the acquisition units is determined according to the size of the metal surface to be actually detected.
Compared with the prior art, the utility model discloses an useful part lies in: the utility model discloses a detection device for aassessment metal material evenly corrodes, structural design is reasonable, be used for the matrix collection system of data acquisition and the database management device that is connected with the matrix collection system through setting up, can be more intelligent, more timely, accurate and scientific aassessment metal material takes place the time and the degree of corrosion that the even corrosion takes place, for corresponding prevention or treatment provide the reference, metal material's further corrosion deterioration has effectively been avoided, and can need not artifical entering measurement of observing on the spot, personnel's input has been saved, be applicable to some high temperatures, among the adverse circumstances such as high radiation and some non-planar wait to detect under the condition of metal surface.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow chart of a detection device for evaluating uniform corrosion of a metal material according to a preferred embodiment of the present invention;
fig. 2 is a schematic diagram of an acquisition unit in the detection device according to the preferred embodiment of the present invention;
wherein: 1-a collection unit; 2-a camera; 3-a light source; 4-an eddy current sensor; 5-bracket.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Example 1A detection apparatus for evaluating uniform corrosion of a metallic material
Referring to fig. 1-2, the detection device for evaluating uniform corrosion of a metal material according to the present embodiment includes a matrix type collection device located on a surface of a metal to be detected and used for monitoring a thickness of the surface of the metal to be detected, a detector for converting a thickness change of the surface of the metal to be detected into an electrical signal, a database management device for connecting the matrix type collection device and the detector, and an alarm device connected to the database management device.
The matrix type acquisition device comprises a plurality of acquisition units 1 arranged in a matrix type and a bracket 5 which is used for connecting adjacent acquisition units 1 and fixing the acquisition units 1 on the surface of a metal to be detected. Wait to detect metal surface and be provided with a plurality of acquisition unit 1, the regular range of a plurality of acquisition unit 1 matrix is waiting to detect metal surface, makes the testing result more accurate like this.
Each acquisition unit 1 comprises a distance sensor for monitoring the thickness of the metal surface to be detected, a camera 2 for shooting the metal surface to be detected and a light source 3. The acquisition units 1 are fixed on the surface of the metal to be detected through the support 5, and the adjacent acquisition units 1 are connected through the support 5. Initial photographing is performed by the camera 2, and the photographed photograph is transmitted to the database management apparatus and stored as a reference photograph. And then, the camera 2 shoots regularly at preset intervals, the shot pictures are transmitted to the database management device, the database management device receives the pictures shot in real time so that a person can check the pictures at any time, and the person can compare the pictures shot in real time with prestored reference pictures to judge whether the metal material is uniformly corroded and judge the corrosion degree.
In this embodiment, the distance sensor is an eddy current sensor 4, and the detector is an eddy current detector. The eddy current sensor 4 can measure the distance between the measured metal conductor and the surface of the probe in a non-contact, high-linearity and high-resolution mode. By arranging the alarm device, when the eddy current sensor 4 in the acquisition unit 1 detects that the thickness of the metal surface to be detected is lower than a set value, the database management device controls the alarm device to give an alarm. Wherein the eddy current sensor 4 and the eddy current tester are both prior art in the field.
The adjacent supports 5 are arranged in parallel or vertically, the acquisition unit 1 is arranged at the intersection position of the supports 5, specifically, the eddy current sensor 4 is arranged at the intersection position of the supports 5, the light source 3 is arranged on the left side of the distance sensor, and the camera 2 is arranged above the distance sensor. And in the embodiment, the length of the bracket 5 is consistent, and the distance between the adjacent acquisition units 1 is consistent. Because the length of support 5 is unanimous, the interval between adjacent collection unit 1 equals and all collection unit 1 also equals with waiting to detect the distance of waiting to detect metal surface, and the arrangement of a plurality of collection unit 1 matrixes is waiting to detect metal surface promptly, as shown in fig. 2, and the dotted line part represents the collection unit 1 that the extension set up in the picture, and the quantity of collection unit 1 is how much according to actual demand setting promptly.
The matrix type is characterized in that the number of the acquisition units 1 is uniformly arranged according to the actual size of the metal to be detected, for example, if only 9 acquisition units 1 are needed, the acquisition units can be equally divided into three rows and three columns, and each row and each column are 3. Matrix collection system is placed and is waited to detect the metal surface certain distance, and the distance is in order to guarantee that camera 2 shoots clearly, eddy current sensor 4 can gather effective data and be the standard.
In specific implementation application, the distance between the acquisition unit 1 and the metal surface to be detected is determined according to the principle that the metal surface is clear when the actual camera 2 shoots the metal surface, and the current signal caused by the change of the metal thickness can be accurately detected by the eddy current sensor 4; the installation number of the acquisition units 1 is determined according to the size of the metal surface to be actually detected.
Through setting up the matrix collection system who is used for data acquisition and the database management device that is connected with matrix collection system, the time and the degree of corrosion that even corrosion takes place for the aassessment metal material that can be more timely, accurate and scientific, and can need not artifical measurement that gets into observation on the spot, be applicable to in some severe environment such as high temperature, high radiation.
The support 5 in this embodiment is linear, and in some other embodiments, the support 5 between adjacent collection units 1 can also be in arc arrangement, so that the detection device can be applied to non-planar metal surfaces to be detected, such as pipelines, and the application range of the detection device is further expanded.
When the device is used specifically, according to the characteristics of uniform corrosion, if the colors of the newly acquired photos of the cameras 2 in all the acquisition units 1 are changed to the same degree at the same time, and the thickness of the metal measured by the eddy current sensor 4 is reduced similarly, the uniform corrosion of the metal surface is indicated. Therefore, the time and the corrosion degree of the metal uniform corrosion can be determined in time. When the uniform corrosion degree exceeds a set threshold value, namely a minimum value, an alarm system is triggered to give an alarm. The threshold value of the uniform corrosion degree is set through the metal thinning degree, namely when the distance between the probe of the eddy current sensor 4 and the surface of the metal to be detected exceeds a certain value, the eddy current sensor 4 triggers an alarm system to give an alarm.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. A detection apparatus for evaluating uniform corrosion of a metallic material, characterized in that: the matrix type collecting device comprises a matrix type collecting device positioned on the surface of a metal to be detected, wherein the matrix type collecting device comprises a plurality of collecting units arranged in a matrix type, each collecting unit comprises a distance sensor used for monitoring the thickness of the surface of the metal to be detected, the detecting device also comprises a detector connected with the distance sensors and used for converting the thickness change of the surface of the metal to be detected into an electric signal, and a database management device connected with the matrix type collecting device and the detector; the collecting unit further comprises a camera and a lamp source, the camera and the lamp source are used for shooting the metal surface to be detected, the collecting unit is fixed on the metal surface to be detected through a support, and the adjacent collecting units are connected through the support.
2. The inspection apparatus for evaluating uniform corrosion of metallic materials according to claim 1, wherein: the adjacent brackets are arranged in parallel or vertically, and the acquisition units are arranged at the crossed positions of the brackets.
3. The inspection apparatus for evaluating uniform corrosion of metallic materials according to claim 2, wherein: the distance sensor is arranged at the position where the support is crossed, the light source is arranged on the left side of the distance sensor, and the camera is arranged above the distance sensor.
4. The inspection apparatus for evaluating uniform corrosion of metallic materials according to claim 1, wherein: the length of the support is consistent, and the distance between the adjacent acquisition units is consistent.
5. The inspection apparatus for evaluating uniform corrosion of metallic materials according to claim 1, wherein: the detection device also comprises an alarm device connected with the database management device.
6. The inspection apparatus for evaluating uniform corrosion of metallic materials according to any one of claims 1 to 5, wherein: the distance sensor is an eddy current sensor, and the detector is an eddy current detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921184641.1U CN210863483U (en) | 2019-07-25 | 2019-07-25 | Detection device for evaluating uniform corrosion of metal material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921184641.1U CN210863483U (en) | 2019-07-25 | 2019-07-25 | Detection device for evaluating uniform corrosion of metal material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411935A (en) * | 2019-07-25 | 2019-11-05 | 岭澳核电有限公司 | For assessing the detection device and detection method of metal material homogeneous corrosion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411935A (en) * | 2019-07-25 | 2019-11-05 | 岭澳核电有限公司 | For assessing the detection device and detection method of metal material homogeneous corrosion |
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