CN112067536A - Method and system for evaluating atmospheric corrosion safety state of in-service engineering - Google Patents
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- 238000012216 screening Methods 0.000 claims abstract description 11
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- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 12
- 238000004590 computer program Methods 0.000 claims description 11
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
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- 229910052742 iron Inorganic materials 0.000 description 5
- 239000011247 coating layer Substances 0.000 description 3
- 238000005246 galvanizing Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000010962 carbon steel Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 238000005536 corrosion prevention Methods 0.000 description 1
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Abstract
The invention discloses an in-service engineering atmospheric corrosion safety state evaluation method and a system, comprising the following steps: acquiring an image of an in-service engineering component, judging whether the in-service engineering component has an anticorrosion protective layer, and if so, indicating that the current engineering component is a safe component; if the corrosion protection layer is not provided or is incomplete, the current engineering component is a suspected safety component; evaluating the corrosion degree of the suspected safety component, and screening out the safety component according to the corrosion degree evaluation result; and calculating the residual service life of the current engineering component according to the atmospheric corrosion degree of the safety component. The method and the device can realize the atmospheric corrosion safety evaluation of the engineering and realize the residual life evaluation.
Description
Technical Field
The application relates to the technical field of corrosion safety state evaluation, in particular to an in-service engineering atmospheric corrosion safety state evaluation method and system.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
Projects and equipment which are operated outdoors throughout the year inevitably receive corrosion from the atmospheric environment. According to investigation, the loss caused by corrosion accounts for about 3.34% of GDP in China every year, and public safety accidents caused by corrosion failure are also rare.
In the process of implementing the present application, the inventors found that the following technical problems exist in the prior art:
the corrosion safety assessment of the in-service engineering can prevent the engineering safety hidden danger caused by corrosion, and is particularly significant for power transmission lines, important metal structures in public areas and the like. Traditional corrosion safety assessment mainly depends on manual inspection and judgment, and data support is lacked in corrosion judgment and prediction, so that the result is very inaccurate.
Disclosure of Invention
In order to solve the defects of the prior art, the application provides a method and a system for evaluating the atmospheric corrosion safety state of in-service engineering; the atmospheric corrosion safety of the in-service engineering can be effectively evaluated.
In a first aspect, the application provides an in-service engineering atmospheric corrosion safety state evaluation method;
the method for evaluating the atmospheric corrosion safety state of the in-service engineering comprises the following steps:
acquiring an image of an in-service engineering component, judging whether the in-service engineering component has an anticorrosion protective layer, and if so, indicating that the current engineering component is a safe component; if the corrosion protection layer is not provided or is incomplete, the current engineering component is a suspected safety component;
evaluating the corrosion degree of the suspected safety component, and screening out the safety component according to the corrosion degree evaluation result; and calculating the residual service life of the current engineering component according to the atmospheric corrosion degree of the safety component.
In a second aspect, the application provides an in-service engineering atmospheric corrosion safety state evaluation system;
in-service engineering atmospheric corrosion safety state evaluation system includes:
an acquisition module configured to: acquiring an image of an in-service engineering component, judging whether the in-service engineering component has an anticorrosion protective layer, and if so, indicating that the current engineering component is a safe component; if the corrosion protection layer is not provided or is incomplete, the current engineering component is a suspected safety component;
a corrosion level evaluation module configured to: evaluating the corrosion degree of the suspected safety component, and screening out the safety component according to the corrosion degree evaluation result;
a remaining life calculation module configured to: and calculating the residual service life of the current engineering component according to the atmospheric corrosion degree of the safety component.
In a third aspect, the present application further provides an electronic device, including: one or more processors, one or more memories, and one or more computer programs; wherein a processor is connected to the memory, the one or more computer programs are stored in the memory, and when the electronic device is running, the processor executes the one or more computer programs stored in the memory, so as to make the electronic device execute the method according to the first aspect.
In a fourth aspect, the present application also provides a computer-readable storage medium for storing computer instructions which, when executed by a processor, perform the method of the first aspect.
In a fifth aspect, the present application also provides a computer program (product) comprising a computer program for implementing the method of any of the preceding first aspects when run on one or more processors.
Compared with the prior art, the beneficial effects of this application are:
according to the method and the device, the safety component and the suspected safety component are screened out through whether the anti-corrosion protection layer is provided, and the suspected safety component is subjected to corrosion degree evaluation, so that the safety component can be prevented from being regarded as a non-safety component, and misjudgment is avoided.
According to the method and the device, the residual life of the current engineering component is calculated according to the atmospheric corrosion degree of the safety component instead of only calculating the residual life of the current engineering component according to the corrosion degree of the protective layer of the safety component, so that the accurate evaluation of the residual life of the engineering component can be realized.
The method and the device can realize the atmospheric corrosion safety evaluation of the engineering and realize the residual life evaluation.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a flow chart of the method of the first embodiment.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be understood that the terms "comprises" and "comprising", and any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
Example one
The embodiment provides an in-service engineering atmospheric corrosion safety state evaluation method;
as shown in FIG. 1, the method for evaluating the atmospheric corrosion safety state of in-service engineering comprises the following steps:
s101: acquiring an image of an in-service engineering component, judging whether the in-service engineering component has an anticorrosion protective layer, and if so, indicating that the current engineering component is a safe component; if the corrosion protection layer is not provided or is incomplete, the current engineering component is a suspected safety component;
s102: evaluating the corrosion degree of the suspected safety component, and screening out the safety component according to the corrosion degree evaluation result;
s103: and calculating the residual service life of the current engineering component according to the atmospheric corrosion degree of the safety component.
In one or more embodiments, the images of the in-service engineering components are acquired, and the high-definition camera is used for acquiring the images of the surfaces of the in-service engineering components.
Illustratively, the in-service engineering component includes: the aluminum material is decorated to transmission line iron tower or park landscape, etc., and this application does not make any limitation.
Illustratively, the corrosion protection layer includes: an anti-corrosion coating or an anti-corrosion plating layer, etc., which are not limited in this application.
As one or more embodiments, in S102, the suspected safety component is evaluated for corrosion degree, and a safety component is screened out according to a corrosion degree evaluation result; the method comprises the following specific steps:
and evaluating the corrosion degree by adopting a corrosion thinning measurement mode, and screening out the safety component according to the corrosion degree evaluation result.
It should be understood that when the engineering component is severely corroded or the volume of the engineering component is larger than a set threshold value and cannot be brought back to the laboratory for analysis, the corrosion reduction measurement mode is adopted for corrosion degree evaluation. When the local corrosion is significantly heavier than other parts, corrosion thinning measurement is preferably taken.
Further, the corrosion degree is evaluated by adopting a corrosion thinning measurement mode; the method comprises the following specific steps:
and polishing the surface of the engineering component, removing corrosion products, exposing the base layer, measuring the residual thickness of the engineering component by using a thickness gauge, and when the residual thickness is greater than a set thickness threshold value, indicating that the suspected safety component is a safe component, otherwise, indicating that the suspected safety component is an unsafe component.
Further, the set thickness threshold is equal to the ratio of the design thickness value in the design data to the safety factor; or, the set thickness threshold is equal to the product of the design thickness value and the set ratio in the design data. Illustratively, the set ratio is, for example, 80%.
Further, a thickness threshold is set, allowing calculation using simulation software. When the design data is not consulted, the simulation software can be used for calculation.
Illustratively, the residual thickness d1 is measured using a gauged thickness gauge. And (4) calculating according to the design thickness d2, the safety coefficient gamma and the like in the original design data, and judging whether the mechanical property indexes of the design requirements are met. When d1 is larger than d 2/gamma, the composition is safe; otherwise, it is not safe. When the design data is not consulted, simulation software can be used for simulation calculation, and whether the residual thickness meets the use requirement or not can be judged. If the conditions are not met, the design thickness of 80% can be used as a criterion, if the residual thickness is larger than 80%, the safety is ensured, and if the residual thickness is not larger than 80%, the danger is judged.
As one or more embodiments, in S102, the suspected safety component is evaluated for corrosion degree, and a safety component is screened out according to a corrosion degree evaluation result; the method comprises the following specific steps:
and (4) evaluating the corrosion degree by adopting a corrosion weighing detection mode, and screening out the safety component according to the corrosion degree evaluation result.
Further, the corrosion degree evaluation is carried out by adopting a corrosion weighing detection mode, and the method specifically comprises the following steps:
according to the IOS8407 standard, after the suspected safety component is cleaned of corrosion products, the corrosion degree is calculated through weighing and component material density, and the current engineering component is output to be a safety component or an unsafe component according to the corrosion degree.
It will be appreciated that when samples can be taken back for laboratory analysis, the corrosion reduction can be calculated by weighing and component material density after removal of corrosion products in accordance with ISO8407 standard.
As one or more embodiments, in S103, calculating the remaining life of the current engineering component according to the atmospheric corrosion degree of the safety component; the method comprises the following specific steps:
calculating the atmospheric corrosion degree of the safety component;
and selecting a corresponding residual life calculation formula according to the atmospheric corrosion degree, and calculating the residual life of the current engineering component.
Further, calculating the atmospheric corrosion degree of the safety component; the method comprises the following specific steps:
when the environment of the safety component is a cold zone environment or a rural environment or the concentration of sulfur dioxide is less than 5 micrograms per cubic meter, the corrosion grade of the current safety component is a low corrosion grade;
when the environment of the safety component is a temperate zone, a city environment, the concentration of sulfur dioxide is more than 5 micrograms per cubic meter and less than 30 micrograms per cubic meter, or a low-chlorine compound deposition environment, the corrosion grade of the current safety component is a medium corrosion grade;
the current corrosion level of the safety component is a high corrosion level when the environment in which the safety component is located is subtropical, tropical, polluted urban, industrial, coastal, or has a sulfur dioxide concentration greater than 30 micrograms per cubic meter.
Illustratively, the calculating of the degree of atmospheric corrosion of the safety member; the method comprises the following steps:
if the atmospheric corrosion grade data of the region where the engineering component is located is available in the near 1 year, repeated development is not needed. If not, the atmospheric corrosivity evaluation can be quickly judged according to the following table.
TABLE 1 quick evaluation method of atmospheric corrosivity
The 2 nd formula is preferably adopted to calculate under the environment with low corrosivity such as C1, C2 and C3; in the environment with higher corrosiveness, the formula 1 is preferably adopted for calculation. Calculating important equipment components according to a 1 st formula; the less important plant components can be calculated according to the 2 nd formula. The atmospheric corrosion safety assessment of the in-service engineering can be completed according to the flow.
Further, according to the atmospheric corrosion degree, selecting a corresponding residual life calculation formula, and calculating the residual life of the current engineering component; the method specifically comprises the following steps:
if the atmospheric corrosion degree of the current engineering component is in a high corrosion grade, calculating the residual life of the current engineering component by adopting a first calculation formula;
and if the atmospheric corrosion degree of the current engineering component is the medium corrosion grade or the low corrosion grade, calculating the residual life of the current engineering component by adopting a second calculation formula.
Further, the first calculation formula is:
the residual life of the anticorrosion protective layer is equal to the product of the first ratio and the first difference;
the first ratio is equal to a ratio of an age to a second difference; wherein the second difference is equal to the difference between the design thickness of the current engineering component and the remaining thickness of the current engineering component;
the first difference is equal to the difference between the residual thickness of the current engineering component and a second ratio; and the second ratio is equal to the ratio of the design thickness of the current engineering component to the safety factor.
Illustratively, the first calculation formula is:
wherein, a1For the remaining life (year), a2To a used age, d1Residual thickness (. mu.m), d2γ is a safety factor for designing the thickness (μm), and when the safety factor cannot be checked, γ is calculated as 1.25, and plating and the like are also calculated as 1.25.
Further, the second calculation formula is:
wherein, a1For the remaining life (year), a2To a used age, d1Residual thickness (. mu.m), d2γ is a safety factor for designing the thickness (μm), and when the safety factor cannot be checked, γ is calculated as 1.25, and plating and the like are also calculated as 1.25. b is the coefficient of determination of the coating or base material, where b is carbon steel10.575, zinc b20.873, copper b30.726, aluminum b4＝0.807。
The first formula life assessment is more stringent, i.e., the safety requirements for the project are higher, and the second is relatively loose. May be specifically selected for the service environment and equipment importance.
Example 1.1: the evaluation on the corrosion of the Zibo power transmission line iron tower is carried out, the original iron tower is hot galvanizing corrosion-resistant, and the operation is carried out for 5 years.
Through site survey, the galvanized layer is basically complete on the surface of the iron tower, so that the power transmission line structure is safe. And (3) evaluating the corrosion resistance service life of the hot-dip galvanized layer, wherein the thickness of the coating is detected by a coating thickness gauge at multiple points, the residual thickness is about 40 mu m, and the original design is 86 mu m. The on-site atmospheric corrosion grade data is C3 medium atmospheric corrosion, but the main material of the power transmission line iron tower is important and is an important guarantee for the support solution structure and safe operation of the power transmission line, the formula coating layer (1) is adopted for calculation, and the calculated residual life is 2.478 years, namely the main material fails in the 2.93-year anticorrosion coating layer. The other hot galvanizing anti-corrosion coatings except the main material are calculated by adopting a formula coating layer (2), and the hot galvanizing can be calculated according to the corrosion judgment coefficient of zinc of 0.873, and the safety factor is 1.25. The calculated residual life is 2.93 years, namely the anticorrosion coating of other auxiliary materials fails in 2.93 years.
Example 1.2: the corrosion evaluation of the landscape decorative aluminum material of the smoke platform protection park fence is carried out, the aluminum material is originally pure aluminum material without any anticorrosive coating, and the aluminum material has been used for 3 years. The residual thickness of the decorative aluminum material is about 900 mu m through field detection, and the original design is 1 mm. The original design data is not inquired, and 80% of the design data is used as a safety criterion, so that the safety of the decorative aluminum material is judged. The on-site atmospheric corrosion grade data is C4, but the importance of the decorative aluminum material is low, so the on-site atmospheric corrosion grade data can be calculated according to the matrix formula (2). The safety coefficient is 1.25, the corrosion judgment coefficient is 0.807, and the calculated residual life is 4.08 years, namely the decorative aluminum material is safe to use in corrosion prevention threat in 4.08 years.
Example two
The embodiment provides an in-service engineering atmospheric corrosion safety state evaluation system;
in-service engineering atmospheric corrosion safety state evaluation system includes:
an acquisition module configured to: acquiring an image of an in-service engineering component, judging whether the in-service engineering component has an anticorrosion protective layer, and if so, indicating that the current engineering component is a safe component; if the corrosion protection layer is not provided or is incomplete, the current engineering component is a suspected safety component;
a corrosion level evaluation module configured to: evaluating the corrosion degree of the suspected safety component, and screening out the safety component according to the corrosion degree evaluation result;
a remaining life calculation module configured to: and calculating the residual service life of the current engineering component according to the atmospheric corrosion degree of the safety component.
It should be noted here that the above-mentioned obtaining module, corrosion degree evaluating module and remaining life calculating module correspond to steps S101 to S103 in the first embodiment, and the above-mentioned modules are the same as the examples and application scenarios realized by the corresponding steps, but are not limited to the disclosure of the first embodiment. It should be noted that the modules described above as part of a system may be implemented in a computer system such as a set of computer-executable instructions.
In the foregoing embodiments, the descriptions of the embodiments have different emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The proposed system can be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the above-described modules is merely a logical functional division, and in actual implementation, there may be other divisions, for example, multiple modules may be combined or integrated into another system, or some features may be omitted, or not executed.
EXAMPLE III
The present embodiment also provides an electronic device, including: one or more processors, one or more memories, and one or more computer programs; wherein, a processor is connected with the memory, the one or more computer programs are stored in the memory, and when the electronic device runs, the processor executes the one or more computer programs stored in the memory, so as to make the electronic device execute the method according to the first embodiment.
It should be understood that in this embodiment, the processor may be a central processing unit CPU, and the processor may also be other general purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate arrays FPGA or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and so on. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may include both read-only memory and random access memory, and may provide instructions and data to the processor, and a portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information.
In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software.
The method in the first embodiment may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, among other storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.
Those of ordinary skill in the art will appreciate that the various illustrative elements, i.e., algorithm steps, described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
Example four
The present embodiments also provide a computer-readable storage medium for storing computer instructions, which when executed by a processor, perform the method of the first embodiment.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The method for evaluating the atmospheric corrosion safety state of the in-service engineering is characterized by comprising the following steps of:
acquiring an image of an in-service engineering component, judging whether the in-service engineering component has an anticorrosion protective layer, and if so, indicating that the current engineering component is a safe component; if the corrosion protection layer is not provided or is incomplete, the current engineering component is a suspected safety component;
evaluating the corrosion degree of the suspected safety component, and screening out the safety component according to the corrosion degree evaluation result; and calculating the residual service life of the current engineering component according to the atmospheric corrosion degree of the safety component.
2. The method of claim 1, wherein said suspected safety component is evaluated for corrosion and screened based on the corrosion evaluation; the method comprises the following specific steps:
evaluating the corrosion degree by adopting a corrosion thinning measurement mode, and screening out a safety component according to the corrosion degree evaluation result;
alternatively, the first and second electrodes may be,
evaluating the corrosion degree by adopting a corrosion thinning measurement mode; the method comprises the following specific steps:
and polishing the surface of the engineering component, removing corrosion products, exposing the base layer, measuring the residual thickness of the engineering component by using a thickness gauge, and when the residual thickness is greater than a set thickness threshold value, indicating that the suspected safety component is a safe component, otherwise, indicating that the suspected safety component is an unsafe component.
3. The method of claim 1, wherein said suspected safety component is evaluated for corrosion and screened based on the corrosion evaluation; the method comprises the following specific steps:
carrying out corrosion degree evaluation by adopting a corrosion weighing detection mode, and screening out a safety component according to a corrosion degree evaluation result;
alternatively, the first and second electrodes may be,
the method for evaluating the corrosion degree by adopting a corrosion weighing detection mode comprises the following specific steps:
according to the IOS8407 standard, after the suspected safety component is cleaned of corrosion products, the corrosion degree is calculated through weighing and component material density, and the current engineering component is output to be a safety component or an unsafe component according to the corrosion degree.
4. The method as claimed in claim 1, wherein the residual life of the current engineering component is calculated according to the atmospheric corrosion degree of the safety component; the method comprises the following specific steps:
calculating the atmospheric corrosion degree of the safety component;
and selecting a corresponding residual life calculation formula according to the atmospheric corrosion degree, and calculating the residual life of the current engineering component.
5. The method of claim 4, wherein the degree of atmospheric corrosion of the security component is calculated; the method comprises the following specific steps:
when the environment of the safety component is a cold zone environment or a rural environment or the concentration of sulfur dioxide is less than 5 micrograms per cubic meter, the corrosion grade of the current safety component is a low corrosion grade;
when the environment of the safety component is a temperate zone, a city environment, the concentration of sulfur dioxide is more than 5 micrograms per cubic meter and less than 30 micrograms per cubic meter, or a low-chlorine compound deposition environment, the corrosion grade of the current safety component is a medium corrosion grade;
the current corrosion level of the safety component is a high corrosion level when the environment in which the safety component is located is subtropical, tropical, polluted urban, industrial, coastal, or has a sulfur dioxide concentration greater than 30 micrograms per cubic meter.
6. The method as claimed in claim 1, wherein the remaining life of the current engineering component is calculated by selecting a corresponding remaining life calculation formula according to the atmospheric corrosion degree; the method specifically comprises the following steps:
if the atmospheric corrosion degree of the current engineering component is in a high corrosion grade, calculating the residual life of the current engineering component by adopting a first calculation formula;
and if the atmospheric corrosion degree of the current engineering component is the medium corrosion grade or the low corrosion grade, calculating the residual life of the current engineering component by adopting a second calculation formula.
7. The method of claim 6, wherein the first calculation formula is:
the residual life of the anticorrosion protective layer is equal to the product of the first ratio and the first difference;
the first ratio is equal to a ratio of an age to a second difference; wherein the second difference is equal to the difference between the design thickness of the current engineering component and the remaining thickness of the current engineering component;
the first difference is equal to the difference between the residual thickness of the current engineering component and a second ratio; and the second ratio is equal to the ratio of the design thickness of the current engineering component to the safety factor.
8. In-service engineering atmospheric corrosion safety state evaluation system, characterized by includes:
an acquisition module configured to: acquiring an image of an in-service engineering component, judging whether the in-service engineering component has an anticorrosion protective layer, and if so, indicating that the current engineering component is a safe component; if the corrosion protection layer is not provided or is incomplete, the current engineering component is a suspected safety component;
a corrosion level evaluation module configured to: evaluating the corrosion degree of the suspected safety component, and screening out the safety component according to the corrosion degree evaluation result;
a remaining life calculation module configured to: and calculating the residual service life of the current engineering component according to the atmospheric corrosion degree of the safety component.
9. An electronic device, comprising: one or more processors, one or more memories, and one or more computer programs; wherein a processor is connected to the memory, the one or more computer programs being stored in the memory, the processor executing the one or more computer programs stored in the memory when the electronic device is running, to cause the electronic device to perform the method of any of the preceding claims 1-7.
10. A computer-readable storage medium storing computer instructions which, when executed by a processor, perform the method of any one of claims 1 to 7.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002062252A (en) * | 2000-08-22 | 2002-02-28 | Toshiba Corp | System for real time diagnosis of corrosion life in metallic portion using environmental information |
| CN105258737A (en) * | 2015-11-23 | 2016-01-20 | 国家电网公司 | Prediction method for corrosion residual life of transmission line towers at industrial area |
| CN105740546A (en) * | 2016-02-01 | 2016-07-06 | 国家电网公司 | Transmission tower and ground wire security evaluation and service life prediction system based on corrosion state |
| KR20160134096A (en) * | 2015-05-14 | 2016-11-23 | 명지대학교 산학협력단 | Corrosion risk management system and method |
| CN106529019A (en) * | 2016-11-08 | 2017-03-22 | 国家电网公司华中分部 | Power transmission tower remaining life evaluation method based on corrosion model |
| JP2017106785A (en) * | 2015-12-08 | 2017-06-15 | 東北電力株式会社 | Method for simply evaluating corrosion resistant life of galvanized equipment using copper piece |
| CN109520913A (en) * | 2018-11-22 | 2019-03-26 | 广西电网有限责任公司电力科学研究院 | A kind of appraisal procedure of in-service electric power line pole tower and metal frame etch state |
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2020
- 2020-07-21 CN CN202010704000.5A patent/CN112067536B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002062252A (en) * | 2000-08-22 | 2002-02-28 | Toshiba Corp | System for real time diagnosis of corrosion life in metallic portion using environmental information |
| KR20160134096A (en) * | 2015-05-14 | 2016-11-23 | 명지대학교 산학협력단 | Corrosion risk management system and method |
| CN105258737A (en) * | 2015-11-23 | 2016-01-20 | 国家电网公司 | Prediction method for corrosion residual life of transmission line towers at industrial area |
| JP2017106785A (en) * | 2015-12-08 | 2017-06-15 | 東北電力株式会社 | Method for simply evaluating corrosion resistant life of galvanized equipment using copper piece |
| CN105740546A (en) * | 2016-02-01 | 2016-07-06 | 国家电网公司 | Transmission tower and ground wire security evaluation and service life prediction system based on corrosion state |
| CN106529019A (en) * | 2016-11-08 | 2017-03-22 | 国家电网公司华中分部 | Power transmission tower remaining life evaluation method based on corrosion model |
| CN109520913A (en) * | 2018-11-22 | 2019-03-26 | 广西电网有限责任公司电力科学研究院 | A kind of appraisal procedure of in-service electric power line pole tower and metal frame etch state |
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