Atmospheric corrosion grade prediction method and device, storage medium and electronic equipment

Abstract

The invention discloses an atmospheric corrosion grade prediction method and device, a storage medium and electronic equipment, and relates to the technical field of atmospheric corrosion. The method comprises the steps that environmental parameters of a meteorological environment where a component is located are obtained, and the environmental parameters comprise the air temperature, the temperature difference, the humidity, the precipitation amount, the solar radiation amount and the sulfur dioxide concentration; calculating the salt deposition amount of the meteorological environment based on the air temperature, the temperature difference and the precipitation amount; according to the air temperature and the humidity, the water vapor content in unit volume air in the meteorological environment is calculated; calculating a radiation intensity factor of the meteorological environment based on the air temperature and the solar radiation amount; calculating pollutant acceleration factors of the meteorological environment according to the sulfur dioxide concentration; based on the salt deposition amount, the water vapor content, the radiation intensity factor and the pollutant acceleration factor, determining a corrosion intensity factor of the meteorological environment; and determining the atmospheric corrosion level of the meteorological environment according to the corrosion strength factor. The problems of long corrosion level prediction period and high cost in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atmospheric corrosion, and in particular to an atmospheric corrosion grade prediction method and device, a storage medium and an electronic device. BACKGROUND

[0002] Corrosion grade prediction is a key means to ensure industrial safety and avoid accidents. Metal structures such as oil and gas pipelines, ships and bridges are easily corroded when exposed to complex environments for a long time. Through corrosion grade prediction, hidden dangers can be found in advance to avoid sudden leakage and collapse accidents, which is of great significance to the safety of life and property and the extension of the service life of facilities.

[0003] Currently, the corrosion grade is determined by testing the corrosion of a standard specimen. However, for this method, the corrosion coupon test requires 1-3 years of exposure time, the test period is long, and the preparation and monitoring of the standard corrosion coupon specimen is costly. SUMMARY

[0004] Therefore, the present application provides an atmospheric corrosion grade prediction method and device, a storage medium and an electronic device, which can solve the problem of long corrosion grade prediction period and high cost in the prior art.

[0005] According to a first aspect of the present application, an atmospheric corrosion grade prediction method is provided, which comprises: obtaining environmental parameters of a meteorological environment in which a component is located, wherein the environmental parameters include air temperature, temperature difference, humidity, precipitation, solar radiation and sulfur dioxide concentration; calculating a salt deposition amount of the meteorological environment based on the air temperature, the temperature difference and the precipitation; calculating the water vapor content in a unit volume of air in the meteorological environment according to the air temperature and the humidity; calculating a radiation intensity factor of the meteorological environment based on the air temperature and the solar radiation; calculating a pollutant acceleration factor of the meteorological environment according to the sulfur dioxide concentration; determining a corrosion intensity factor of the meteorological environment based on the salt deposition amount, the water vapor content, the radiation intensity factor and the pollutant acceleration factor; determining an atmospheric corrosion grade of the meteorological environment according to the corrosion intensity factor.

[0006] According to a second aspect of the present application, an atmospheric corrosion grade prediction device is provided, which comprises: an obtaining unit configured to obtain environmental parameters of a meteorological environment in which a component is located, wherein the environmental parameters include air temperature, temperature difference, humidity, precipitation, solar radiation and sulfur dioxide concentration; a first calculation unit configured to calculate a salt deposition amount of the meteorological environment based on the air temperature, the temperature difference, and the precipitation amount; a second calculation unit configured to calculate a water vapor content in a unit volume of air in the meteorological environment according to the air temperature and the humidity; a third calculation unit configured to calculate a radiation intensity factor of the meteorological environment based on the air temperature and the solar radiation amount; a fourth calculation unit configured to calculate a pollution acceleration factor of the meteorological environment according to the sulfur dioxide concentration; a determination unit configured to determine a corrosion intensity factor of the meteorological environment based on the salt deposition amount, the water vapor content, the radiation intensity factor, and the pollution acceleration factor; The determination unit is further configured to determine an atmospheric corrosion grade of the meteorological environment according to the corrosion intensity factor.

[0007] According to a third aspect of the present application, a storage medium having a computer program stored thereon is provided, the program being executed by a processor to implement the atmospheric corrosion grade prediction method.

[0008] According to a fourth aspect of the present application, an electronic device is provided, comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, the processor implementing the atmospheric corrosion grade prediction method when executing the program.

[0009] By means of the above technical solution, the atmospheric corrosion grade prediction method, device, storage medium, and electronic device provided by the present application can calculate a salt deposition amount, a water vapor content, a radiation intensity factor, and a pollution acceleration factor according to an air temperature, a temperature difference, a humidity, a precipitation amount, a solar radiation amount, and a sulfur dioxide concentration of a meteorological environment in which a component is located, and calculate a corrosion intensity factor according to the salt deposition amount, the water vapor content, the radiation intensity factor, and the pollution acceleration factor, thereby determining an atmospheric corrosion grade of the meteorological environment. It can be seen that the present application is a mechanism-based method, which does not require long-term field data and a large amount of cost investment, and can achieve corrosion grade prediction based on the above environmental parameters, thereby solving the problems of long prediction period and high cost of corrosion grade prediction in the prior art. At the same time, the present application establishes a corrosion intensity factor model from four dimensions of "salt deposition amount, water vapor content, radiation intensity factor, and pollution acceleration factor" in combination with the above environmental parameters, and corresponds to the corrosion grade division in the national standard, establishes an environmental parameter-based corrosion grade division method, and can thus predict the corrosion grade of a component in an atmospheric environment.

[0010] The above description is only a summary of the technical solutions of the present application, in order to enable the technical means of the present application to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0011] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings: Figure 1 A flowchart of a method for predicting atmospheric corrosion grade is shown; Figure 2 A structural diagram of a device for predicting atmospheric corrosion grade is shown. DETAILED DESCRIPTION

[0012] The present application will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that the embodiments in the present application and the characteristics in the embodiments can be combined with each other without conflict.

[0013] The existing standard sample test method has the problems of long corrosion grade prediction cycle and high cost.

[0014] In order to solve the above problems, the embodiment of the present application designs a method for predicting atmospheric corrosion grade, as shown in the figure, the method comprises the steps of: Figure 1 Step 10, obtaining the environment parameters of the weather environment where the component is located, wherein the environment parameters include air temperature, temperature difference, humidity, precipitation, solar radiation and sulfur dioxide concentration.

[0015] The component includes a metal component, a non-metal component and other material components, the metal component specifically includes carbon steel, low alloy steel, stainless steel and the like, the non-metal component specifically includes concrete, polymer and the like, and the other material component specifically includes plated material, welded joint and the like.

[0016] The embodiment of the present application is mainly applicable to the scene of predicting atmospheric corrosion grade, and the execution subject of the embodiment of the present application is a device or equipment capable of predicting atmospheric corrosion grade.

[0017] For the embodiment of the present application, in order to predict the corrosion grade, the environment parameters of the atmospheric environment where the component is located need to be collected in advance, and the environment parameters specifically include air temperature, temperature difference, humidity, precipitation, solar radiation and sulfur dioxide concentration.

[0018] ​For example, the acquired air temperature is 27.8℃, the temperature difference is 3.5℃, the humidity is 94.3%, the precipitation is 83.0 mm / h, the solar radiation is 18774.9 W / m2, and the sulfur dioxide concentration is 0.22%.

[0019] Step 20, based on the air temperature, the temperature difference and the precipitation, the salt deposition amount of the meteorological environment is calculated.

[0020] For the specific calculation process of the salt deposition amount, step 20 specifically comprises: acquiring the volume and material density of the component, and the time length of the component in the air; based on the air temperature, the latent heat of moist air is calculated; based on the latent heat of moist air, the volume, the material density, the specific heat capacity of moist air, the temperature difference and the time length, the water film condensation rate on the surface of the component is calculated; according to the air temperature, the saturation vapor pressure is calculated by using Antoine equation; based on the saturation vapor pressure, the density of moist air, the molecular weight of water, the gas constant and the air temperature, the water film evaporation rate is calculated by using Dalton gas evaporation law; the rate difference between the water film condensation rate and the water film evaporation rate is calculated, and based on the rate difference, the thickness of the water film in different time periods is determined; based on the thickness of the water film in different time periods and the salt concentration in the air, the deposition amount of salt in different time periods is calculated; for the deposition amount of salt in any one of the different time periods, if the precipitation is greater than the preset precipitation, the deposition amount of salt in the arbitrary one time period is cleared to obtain the real deposition amount of salt in different time periods under the influence of precipitation; the real deposition amount of salt in different time periods is accumulated to obtain the salt deposition amount of the meteorological environment.

[0021] Specifically, first, consider the water vapor in the wet air affected by the temperature difference, condense into water film on the surface of the component, the calculation formula of the water film condensation rate is as follows, (1) Wherein, represents the water film condensation rate; V represents the volume of the component; p 1 represents the material density; C represents the specific heat capacity of moist air, 1000 J / (kg·K); represents the temperature difference; H represents the latent heat of moist air; t represents the time length of the component in the meteorological environment.

[0022] Further, the calculation formula of the latent heat of moist air is as follows: (2) Wherein, T represents the air temperature.

[0023] Further, the water film evaporation rate can be calculated by using the Dalton gas evaporation law, and the specific calculation formula is as follows: (3) wherein, U represents the water film evaporation rate; p 2 represents the water-containing atmospheric density, which is 1.205 kg / m 3 ; represents the saturated vapor pressure; represents the molecular weight of water, which is 18; R represents the gas constant, which is 8.314 J / mol; T represents the air temperature (℃).

[0024] The saturated vapor pressure (kpa) can be calculated by using the Antoine equation: (4) Further, the rate difference between the water film condensation rate and the water film evaporation rate is calculated, and based on the rate difference, the thickness of the water film in different time periods can be obtained, such as the thickness of the water film per day, and the specific formula is as follows, (5) When the salt-containing water film evaporates, salt deposition is formed, and according to the salt concentration in the air, the salt deposition amount in different time periods can be calculated, and the specific formula is as follows, (6) wherein, represents the salt deposition amount in a time period i ; represents the salt concentration in the air.

[0025] When not affected by rainfall, the deposited salt is accumulated day by day, and the salt deposition amount can be calculated according to the following formula: (7) wherein, represents the salt deposition amount in the meteorological environment.

[0026] Further, if the rainfall in a certain time period i is too large, such as greater than 10 mm / h, the corrosion product can be eroded, so that the deposited salt on the surface of the object is washed away.

[0027] Step 30, according to the air temperature and the humidity, the water vapor content in the unit volume of air in the meteorological environment is calculated.

[0028] For the embodiment of the present application, the step 30 specifically comprises: inputting the amount-of-substance definition formula into the gas state equation to obtain the substituted gas state equation; deriving the water vapor pressure definition formula based on the relationship between the saturated vapor pressure and the temperature and the relative humidity definition; substituting the substituted gas state equation into the water vapor pressure definition formula to obtain the water vapor content definition formula; and substituting the temperature and the humidity into the water vapor content definition formula to obtain the water vapor content in the unit volume of air in the meteorological environment.

[0029] Specifically, the relationship between the saturated vapor pressure and the temperature is as follows, (8) wherein, represents the saturated vapor pressure, T represents the air temperature.

[0030] The relative humidity definition formula is specifically as follows, (9) wherein, RH represents the relative humidity, p represents the water vapor pressure.

[0031] The water vapor pressure definition formula can be derived according to the above formula (8) and formula (9), and the specific formula is as follows: (10) Further, the gas state equation is specifically as follows: (11) wherein, represents the gas volume (m 3 ), represents the thermodynamic temperature (K), n represents the amount of substance of the gas (mol), R represents the gas constant.

[0032] The amount-of-substance definition formula is specifically as follows: (12) wherein, m represents the gas mass, M represents the molar mass of the gas.

[0033] Substituting formula (12) into formula (11) to obtain: (13) Substituting formula (13) into formula (10) to obtain: (14) wherein,W representing the water vapor content in a unit volume of air, representing the molar mass of water (18 g / mol), T representing the air temperature, RH representing the relative humidity (%), R representing the gas constant, which is 8.314 J / mol. Thus, the water vapor content in a unit volume of air can be calculated according to the above formula.

[0034] Step 40, calculating the radiation intensity factor of the meteorological environment based on the air temperature and the solar radiation amount.

[0035] For the embodiment of the present application, the calculation process of the radiation intensity factor specifically includes: according to the solar radiation amount, calculating the component surface elevated temperature caused by solar radiation by using the Stefan-Boltzmann law; based on the component surface elevated temperature, calculating the first reaction rate constant by using the Arrhenius formula; based on the air temperature, calculating the second reaction rate constant by using the Arrhenius formula; and according to the first reaction rate constant and the second reaction rate constant, calculating the radiation intensity factor of the meteorological environment.

[0036] Specifically, when the sunlight irradiates the component, the component surface will be elevated in temperature due to the absorption of solar radiation. According to the Stefan-Boltzmann law, the object surface temperature rise caused by solar radiation can be determined by the following formula: (15) wherein, represents the component surface elevated temperature, P represents the solar radiation intensity (W / m 2 ), and σ is the Stefan-Boltzmann constant, which is about 5.67 × 10 -8 W / (m 2 K 4 ).

[0037] The Arrhenius formula is specifically as follows, (16) wherein, represents the activation energy, and the activation energy of concrete and steel is about 30 kJ / mol and 75 kJ / mol, respectively. Thus, the radiation intensity factor γ is defined, and the specific formula is as follows: (17) The radiation intensity factor γ can reflect the influence of solar radiation on the erosion intensity.

[0038] Step 50, calculating the pollutant acceleration factor of the meteorological environment according to the sulfur dioxide concentration.

[0039] For the embodiment of the present application, when calculating the pollutant acceleration factor, the sulfur dioxide concentration is substituted into the natural exponential function for calculation to obtain the pollutant acceleration factor of the meteorological environment.

[0040] Specifically, the pollutant mainly refers to sulfur dioxide (SO2). SO2 is an important accelerator of atmospheric corrosion, and its influence mechanism is complex and harmful. The corrosion rate of carbon steel in air containing 0.1% SO2 can reach 5 times that in clean air, so it is necessary to define the pollutant acceleration factor , and the specific formula is as follows: (18) wherein, is the SO2 concentration in the atmosphere.

[0041] Step 60, based on the salt deposition amount, the water vapor content, the radiation intensity factor and the pollutant acceleration factor, determining the corrosion intensity factor of the meteorological environment.

[0042] The embodiment of the present application establishes a corrosion intensity factor model from the four dimensions of "salt deposition amount, water vapor content, radiation intensity factor, and pollutant acceleration factor", and the calculation formula of the corrosion intensity factor is as follows: (19) From the above formula, the salt deposition amount, the water vapor content, the radiation intensity factor and the pollutant acceleration factor are multiplied to obtain the corrosion intensity factor of the meteorological environment.

[0043] Step 70, according to the corrosion intensity factor, determining the atmospheric corrosion grade of the meteorological environment.

[0044] For the embodiment of the present application, after calculating the corrosion intensity factor, first determine the corrosion rate according to the corrosion intensity factor, and then query the preset corrosion grade table based on the corrosion rate to determine the atmospheric corrosion grade of the meteorological environment.

[0045] Specifically, the corresponding relationship between the corrosion intensity factor and the corrosion rate is established in advance, as shown in Table 1, to establish the corrosion grade division.

[0046] Table 1 Corresponding relationship between corrosion intensity factor K and corrosion rate

[0047] After determining the corrosion rate corresponding to the corrosion intensity factor, the atmospheric corrosion grade is judged according to the corrosion rate-corrosion grade division table in the national standard GB / T19292.1-2018 (corresponding to the international standard ISO 9223:2012).

[0048] In some embodiments, in addition to calculating the corrosion intensity factor by using the corrosion intensity factor model to predict the corrosion rate, a neural network algorithm can also be used to predict the corrosion rate. Specifically, the salt deposition amount, the water vapor content, the radiation intensity factor and the pollutant acceleration factor can be divided into multiple ranges, and different ranges correspond to different encoding vectors. Taking the salt deposition amount as an example, if the salt deposition amount is in range A, the corresponding encoding vector is 001; if the salt deposition amount is in range B, the corresponding encoding vector is 010; and if the salt deposition amount is in range C, the corresponding encoding vector is 001. Thus, the encoding vectors corresponding to the salt deposition amount, the water vapor content, the radiation intensity factor and the pollutant acceleration factor can be determined according to the ranges in which the salt deposition amount, the water vapor content, the radiation intensity factor and the pollutant acceleration factor are located, respectively, the encoding vectors corresponding to the salt deposition amount, the water vapor content, the radiation intensity factor and the pollutant acceleration factor are transversely spliced to obtain a corrosion feature vector, the corrosion feature vector is then input into a preset corrosion rate prediction model for prediction to obtain a corrosion rate range, and finally the atmospheric corrosion grade is determined according to the corrosion rate range. The preset corrosion rate prediction model can be a multilayer perceptron.

[0049] The atmospheric corrosion grade prediction method provided by the embodiments of the present application is essentially a mechanism-based method, which does not require long-term field data and a large amount of cost investment, and can realize corrosion grade prediction based on environmental parameters, thereby solving the problems of long prediction period and high cost of the corrosion grade prediction in the prior art. At the same time, the embodiments of the present application combine environmental parameters to establish a corrosion intensity factor model from four dimensions of “salt deposition amount, water vapor content, radiation intensity factor and pollutant acceleration factor”, and correspond to the corrosion grade division in the national standard, thereby establishing an environmental parameter-based corrosion grade division method, so that the corrosion grade of a component in an atmospheric environment can be predicted.

[0050] Further, as a specific implementation of the method shown in Figure 1 The embodiments provide an atmospheric corrosion grade prediction device, as shown in Figure 2 The device includes an acquisition unit 101, a first calculation unit 102, a second calculation unit 103, a third calculation unit 104, a fourth calculation unit 105 and a determination unit 106.

[0051] The acquisition unit 101 can be used to acquire environmental parameters of a meteorological environment in which a component is located, wherein the environmental parameters include air temperature, temperature difference, humidity, precipitation amount, solar radiation amount and sulfur dioxide concentration.

[0052] The first calculation unit 102 can be used to calculate a salt deposition amount of the meteorological environment based on the air temperature, the temperature difference and the precipitation amount.

[0053] The second calculation unit 103 can be configured to calculate water vapor content in the meteorological environment per unit volume of air according to the air temperature and the humidity.

[0054] The third calculation unit 104 can be configured to calculate a radiation intensity factor of the meteorological environment based on the air temperature and the solar radiation amount.

[0055] The fourth calculation unit 105 can be configured to calculate a pollution acceleration factor of the meteorological environment according to the sulfur dioxide concentration.

[0056] The determination unit 106 can be configured to determine a corrosion intensity factor of the meteorological environment based on the salt deposition amount, the water vapor content, the radiation intensity factor and the pollution acceleration factor.

[0057] The determination unit 106 can also be configured to determine an atmospheric corrosion grade of the meteorological environment according to the corrosion intensity factor.

[0058] In some embodiments, the first calculation unit 102 can be specifically configured to acquire a volume and a material density of the component, and a time length of the component in air; calculate a water-containing atmospheric latent heat based on the air temperature; calculate a water film condensation rate on the surface of the component based on the water-containing atmospheric latent heat, the volume, the material density, a water-containing atmospheric specific heat capacity, the temperature difference and the time length; calculate a saturated vapor pressure by using the Antoine equation according to the air temperature; calculate a water film evaporation rate by using the Dalton gas evaporation law based on the saturated vapor pressure, a water-containing atmospheric density, a molecular weight of water, a gas constant and the air temperature; calculate a rate difference between the water film condensation rate and the water film evaporation rate, and determine a thickness of the water film in different time periods based on the rate difference; calculate a salt deposition amount in different time periods based on the thickness of the water film in different time periods and a salt concentration in air; if the precipitation amount is greater than a preset precipitation amount, clear the salt deposition amount in any one of the time periods, so as to obtain a real salt deposition amount in different time periods under the influence of precipitation; and accumulate the real salt deposition amount in different time periods to obtain the salt deposition amount of the meteorological environment.

[0059] In some embodiments, the second calculation unit 103 can be specifically configured to input a substance amount definition formula into a gas state equation to obtain a substituted gas state equation; derive a water vapor pressure definition formula based on a relationship between saturated vapor pressure and temperature, and a relative humidity definition; substitute the substituted gas state equation into the water vapor pressure definition formula to obtain a water vapor content definition formula; and substitute the temperature and the humidity into the water vapor content definition formula to obtain the water vapor content in the meteorological environment per unit volume of air.

[0060] In some embodiments, the third calculation unit 104 can be specifically configured to calculate a component surface elevated temperature caused by solar radiation according to the solar radiation amount by using the Stefan-Boltzmann law; calculate a first reaction rate constant based on the component surface elevated temperature by using the Arrhenius formula; calculate a second reaction rate constant based on the air temperature by using the Arrhenius formula; and calculate a radiation intensity factor of the meteorological environment according to the first reaction rate constant and the second reaction rate constant.

[0061] In some embodiments, the fourth calculation unit 105 can be specifically configured to calculate a pollutant acceleration factor of the meteorological environment by substituting the sulfur dioxide concentration into a natural exponential function.

[0062] In some embodiments, the determination unit 106 can be specifically configured to multiply the salt deposition amount, the water vapor content, the radiation intensity factor and the pollutant acceleration factor to obtain a corrosion intensity factor of the meteorological environment.

[0063] In some embodiments, the determination unit 106 can be specifically configured to determine a corrosion rate according to the corrosion intensity factor; and determine an atmospheric corrosion grade of the meteorological environment based on the corrosion rate by querying a preset corrosion grade table.

[0064] It should be noted that other corresponding descriptions of the various functional units involved in the atmospheric corrosion grade prediction device provided in the present embodiment can refer to the corresponding descriptions in the Figure 1 , which will not be described here in detail.

[0065] Based on the above method as shown in Figure 1 , correspondingly, the present embodiment also provides a storage medium having a computer program stored thereon, which is executed by a processor to implement the above atmospheric corrosion grade prediction method as shown in Figure 1 .

[0066] Based on such understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a U disk, a mobile hard disk, etc.), and includes a plurality of instructions for causing an electronic device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of various implementation scenarios of the present application.

[0067] Based on the above method as shown in Figure 1 , and Figure 2In order to achieve the above-mentioned purposes, the electronic device provided by the embodiment of the present application can be a personal computer, a tablet computer, a server, or other network devices, etc., which comprises a storage medium and a processor; the storage medium is used for storing a computer program; and the processor is used for executing the computer program to realize the above-mentioned method for predicting atmospheric corrosion grade. Figure 1 The method for predicting atmospheric corrosion grade.

[0068] Optionally, the above-mentioned entity device can further comprise a user interface, a network interface, a camera, a radio frequency (RF) circuit, a sensor, an audio circuit, a WI-FI module, etc. The user interface can comprise a display screen (Display), an input unit such as a keyboard (Keyboard), etc. The optional user interface can further comprise a USB interface, a card reader interface, etc. The network interface can optionally comprise a standard wired interface, a wireless interface (such as a WI-FI interface), etc.

[0069] Those skilled in the art can understand that the above-mentioned structure of the entity device provided by the embodiment does not constitute a limitation on the entity device, and can comprise more or fewer components, or combine certain components, or different component arrangements.

[0070] The storage medium can further comprise an operating system and a network communication module. The operating system is a program for managing hardware and software resources of the above-mentioned entity device, and supports the running of an information processing program and other software and / or programs. The network communication module is used for realizing the communication between the components in the storage medium, and the communication with other hardware and software in the information processing entity device.

[0071] Those skilled in the art can clearly understand from the above description of the embodiments that the present application can be realized by means of software and necessary general hardware platforms, or by hardware.

[0072] The embodiment of the present application is a mechanism method, which does not need long-term field data and a large amount of cost investment, and can realize corrosion grade prediction based on environmental parameters, thereby solving the problems of long prediction period and high cost of corrosion grade prediction in the prior art. At the same time, the embodiment of the present application combines environmental parameters to establish a corrosion intensity factor model from four dimensions of "salt deposition amount, water vapor content, radiation intensity factor, and pollutant acceleration factor", and correspond to the corrosion grade division in the national standard, to establish an environmental parameter-based corrosion grade division method, thereby being capable of predicting the corrosion grade of a component in an atmospheric environment.

[0073] Those skilled in the art can understand that the modules or flows in the drawings are not necessarily required for implementing the present application. Those skilled in the art can understand that the modules in the devices in the implementation scenarios can be distributed in the devices in the implementation scenarios according to the description of the implementation scenarios, or can be changed to be located in one or more devices different from the implementation scenarios. The modules in the above implementation scenarios can be combined into one module, or can be further split into multiple sub-modules.

[0074] The above application numbers are only for description, and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only some specific implementation scenarios of the present application, but the present application is not limited thereto, and any variations that can be thought of by those skilled in the art should fall within the protection scope of the present application.

Claims

1. A method for predicting atmospheric corrosion levels, characterized in that, include: The environmental parameters of the meteorological environment in which the component is located are obtained, including air temperature, temperature difference, humidity, precipitation, solar radiation and sulfur dioxide concentration. Based on the air temperature, the temperature difference, and the precipitation, calculate the amount of salt deposition in the meteorological environment; Calculate the water vapor content per unit volume of air in the meteorological environment based on the temperature and humidity. Based on the air temperature and the solar radiation, calculate the radiation intensity factor of the meteorological environment; Based on the sulfur dioxide concentration, calculate the pollutant acceleration factor of the meteorological environment; The corrosion intensity factor of the meteorological environment is determined based on the salt deposition amount, the water vapor content, the radiation intensity factor, and the pollutant acceleration factor. The atmospheric corrosion level of the meteorological environment is determined based on the corrosion intensity factor.

2. The method according to claim 1, characterized in that, The calculation of salt deposition in the meteorological environment based on the air temperature, the temperature difference, and the precipitation includes: Obtain the volume and material density of the component, as well as the duration of the component in the air; Calculate the latent heat of the water-bearing atmosphere based on the aforementioned air temperature; The condensation rate of the water film on the surface of the component is calculated based on the latent heat of the water-containing atmosphere, the volume, the material density, the specific heat capacity of the water-containing atmosphere, the temperature difference, and the duration. Based on the stated temperature, the saturated vapor pressure is calculated using the Antoine equation. Based on the saturated vapor pressure, atmospheric density containing water, molecular weight of water, gas constant, and air temperature, the water film evaporation rate is calculated using Dalton's gas evaporation law. Calculate the rate difference between the water film condensation rate and the water film evaporation rate, and determine the thickness of the water film in different time periods based on the rate difference; Based on the thickness of the water film and the salt concentration in the air during the different time periods, the amount of salt deposited during the different time periods is calculated. For the amount of salt deposition in any one of the different time periods, if the precipitation is greater than the preset precipitation, the amount of salt deposition in any one time period is reset to zero, so as to obtain the actual amount of salt deposition in different time periods under the influence of precipitation. The actual salt deposition amount in the different time periods is accumulated to obtain the salt deposition amount in the meteorological environment.

3. The method according to claim 1, characterized in that, The step of calculating the water vapor content per unit volume of air in the meteorological environment based on the temperature and humidity includes: Input the definition of the amount of substance into the gas law to obtain the gas law after substitution. Based on the relationship between saturated vapor pressure and temperature, and the definition of relative humidity, the definition of water vapor pressure is derived. Substituting the gas state equation into the vapor pressure definition of water, we obtain the water vapor content definition. The temperature and humidity are substituted into the definition of water vapor content to calculate the water vapor content per unit volume of air in the meteorological environment.

4. The method according to claim 1, characterized in that, The calculation of the radiation intensity factor of the meteorological environment based on the air temperature and the solar radiation includes: Based on the solar radiation amount, the temperature rise on the component surface caused by solar radiation is calculated using the Stefan-Boltzmann law; The first reaction rate constant is calculated using the Arrhenius formula based on the increased surface temperature of the component. Based on the air temperature, the second reaction rate constant is calculated using the Arrhenius formula. The radiation intensity factor of the meteorological environment is calculated based on the first reaction rate constant and the second reaction rate constant.

5. The method according to claim 1, characterized in that, The calculation of the pollutant acceleration factor in the meteorological environment based on the sulfur dioxide concentration includes: The sulfur dioxide concentration is substituted into the natural exponential function for calculation to obtain the pollutant acceleration factor of the meteorological environment.

6. The method according to claim 1, characterized in that, The determination of the corrosion intensity factor of the meteorological environment based on the salt deposition amount, the water vapor content, the radiation intensity factor, and the pollutant acceleration factor includes: The corrosion intensity factor of the meteorological environment is obtained by multiplying the salt deposition amount, the water vapor content, the radiation intensity factor, and the pollutant acceleration factor.

7. The method according to any one of claims 1-6, characterized in that, Determining the atmospheric corrosion level of the meteorological environment based on the corrosion intensity factor includes: The corrosion rate is determined based on the corrosion intensity factor. Based on the corrosion rate, a preset corrosion level table is consulted to determine the atmospheric corrosion level of the meteorological environment.

8. An atmospheric corrosion level prediction device, characterized in that, include: The acquisition unit is used to acquire environmental parameters of the meteorological environment in which the component is located, wherein the environmental parameters include air temperature, temperature difference, humidity, precipitation, solar radiation and sulfur dioxide concentration; The first calculation unit is used to calculate the amount of salt deposition in the meteorological environment based on the air temperature, the temperature difference, and the precipitation. The second calculation unit is used to calculate the water vapor content per unit volume of air in the meteorological environment based on the air temperature and the humidity. The third calculation unit is used to calculate the radiation intensity factor of the meteorological environment based on the air temperature and the solar radiation. The fourth calculation unit is used to calculate the pollutant acceleration factor of the meteorological environment based on the sulfur dioxide concentration. The determining unit is used to determine the corrosion intensity factor of the meteorological environment based on the salt deposition amount, the water vapor content, the radiation intensity factor, and the pollutant acceleration factor. The determining unit is further configured to determine the atmospheric corrosion level of the meteorological environment based on the corrosion intensity factor.

9. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method of any one of claims 1 to 7.

10. An electronic device, comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method of any one of claims 1 to 7.

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