A method and device for predicting zinc strip life under high voltage DC interference

Abstract

The present application discloses a method and device for predicting the life of a zinc strip under high-voltage direct current interference, the method comprising: obtaining the discharge flow of the zinc strip under high-voltage direct current interference through a preset current monitoring device, the discharge flow including current and time, the preset current monitoring device including a monitoring resistor; calculating the annual corrosion weight and annual corrosion rate of the zinc strip according to the discharge flow and the total weight of the zinc strip based on the Faraday formula; respectively calculating the weight life prediction result and the thickness life prediction result according to the current weight of the zinc strip, the current zinc strip thickness, the annual corrosion weight of the zinc strip and the annual corrosion rate of the zinc strip; selecting the optimal life prediction result from the weight life prediction result and the thickness life prediction result according to the preset requirements. The present application solves the technical problem that the prior art lacks research and analysis on the life of zinc strip under high-voltage direct current interference, resulting in the lack of reliability of the actual discharge process.

Description

Technical Field

[0001] The present application relates to the technical field of equipment life prediction, and in particular to a method and device for predicting the life of a zinc strip under high voltage direct current interference. Background Art

[0002] In recent years, with the rapid development of high-voltage direct current transmission technology, high-voltage direct current grounding electrodes, as an important component of the high-voltage direct current transmission system, play an extremely important role during the fault inspection and maintenance of high-voltage direct current lines. The high-voltage direct current transmission system mostly adopts a bipolar operation mode during operation, but in the initial stage of construction and operation, during maintenance within the year, and during fault troubleshooting, a monopolar high return operation mode will be adopted. At this time, both ends of the converter station need to be grounded. The earth is equivalent to a conductor of the DC transmission line. The current entering the ground through the grounding electrode is the operating current of the DC transmission project, which can be as high as thousands of amperes. In this case, the strong operating current enters the ground to form an earth electric field, causing the earth potential to rise. The buried metal structures adjacent to the high-voltage direct current grounding electrode move internal electrons in a directional manner under the action of the electric field, causing corrosion of the buried metal structures and other material degradation problems. In response to this working condition, corresponding protective measures need to be taken to reduce the corrosion behavior of the pipeline. The commonly used method is to drain through buried pipelines, polarity drainage devices and zinc belts. Please refer to Figure 3 .

[0003] Specifically, when a buried pipeline is interfered by high-voltage direct current, a potential shift will occur, and corrosion will occur at the location where the pipeline current flows out. In order to avoid corrosion of the buried pipeline, buried zinc belts are often used for drainage. However, while the zinc belt discharges stray current, it will also affect the life of the zinc belt itself; especially in locations where high-voltage direct current interference is serious, a large amount of current will flow out of the zinc belt, which will also accelerate the corrosion of the zinc belt. When the zinc belt corrodes to a certain extent, it cannot be effectively drained, affecting the actual drainage efficiency. The existing technology has not analyzed the service life of the zinc belt, so it is not clear what the stray current does on the life of the zinc belt. Summary of the invention

[0004] The present application provides a method and device for predicting the life of a zinc strip under high-voltage direct current interference, which is used to solve the technical problem that the prior art lacks research and analysis on the life of a zinc strip under high-voltage direct current interference, resulting in a lack of reliability in the actual discharge process.

[0005] In view of this, the first aspect of the present application provides a method for predicting the life of a zinc strip under high voltage DC interference, comprising:

[0006] The discharge flow of the zinc strip under high voltage direct current interference is obtained by a preset current monitoring device, wherein the discharge flow includes current and time, and the preset current monitoring device includes a monitoring resistor;

[0007] Based on the Faraday formula, the annual corrosion weight of the zinc strip and the annual corrosion rate of the zinc strip are calculated according to the drainage volume and the total weight of the drainage zinc strip;

[0008] Calculating a weight life prediction result and a thickness life prediction result respectively according to the current weight of the drainage zinc strip, the current zinc strip thickness, the annual corrosion weight of the zinc strip and the annual corrosion rate of the zinc strip;

[0009] The optimal life prediction result is selected from the weight life prediction result and the thickness life prediction result according to preset requirements.

[0010] Preferably, the method of calculating the annual corrosion weight and annual corrosion rate of the zinc strip based on the drainage volume and the total weight of the drainage zinc strip based on the Faraday formula includes:

[0011] Based on Faraday's formula, the annual corrosion weight of the zinc strip is calculated according to the drainage volume and the total weight of the drainage zinc strip;

[0012] Calculate the total thickness of the drainage zinc strip by the total weight of the drainage zinc strip;

[0013] Based on Faraday's formula, the annual corrosion rate of the zinc strip is calculated according to the drainage volume and the total thickness of the drainage zinc strip.

[0014] Preferably, the method of calculating the annual corrosion rate of the zinc strip based on the Faraday formula according to the drainage volume and the total thickness of the drainage zinc strip also includes:

[0015] Parameters are searched in the preset zinc strip specification parameter table to obtain the total weight and total thickness of the drainage zinc strip.

[0016] Preferably, the method of calculating the annual corrosion weight and annual corrosion rate of the zinc strip according to the drainage volume and the total weight of the drainage zinc strip based on the Faraday formula also includes:

[0017] By means of experimental simulation, a self-corrosion simulation operation is performed according to the total weight and total thickness of the drainage zinc strip to obtain the annual self-corrosion weight and annual self-corrosion rate of the zinc strip.

[0018] Preferably, the weight life prediction result and the thickness life prediction result are calculated respectively according to the current weight of the drainage zinc strip, the current zinc strip thickness, the annual corrosion weight of the zinc strip and the annual corrosion rate of the zinc strip, including:

[0019] Dividing the current weight of the drainage zinc strip by the annual corrosion weight of the zinc strip to obtain a weight life prediction result;

[0020] The current zinc strip thickness of the drainage zinc strip is divided by the zinc strip corrosion rate to obtain a thickness life prediction result.

[0021] The second aspect of the present application provides a device for predicting the life of a zinc strip under high voltage direct current interference, comprising:

[0022] A data monitoring module, which uses a preset current monitoring device to obtain the discharge flow of the discharge zinc strip under high voltage DC interference, wherein the discharge flow includes current and time, and the preset current monitoring device includes a monitoring resistor;

[0023] A first calculation module is used to calculate the annual corrosion weight and annual corrosion rate of the zinc strip according to the drainage volume and the total weight of the drainage zinc strip based on the Faraday formula;

[0024] A second calculation module is used to calculate a weight life prediction result and a thickness life prediction result according to the current weight of the drainage zinc strip, the current zinc strip thickness, the annual corrosion weight of the zinc strip and the annual corrosion rate of the zinc strip;

[0025] The optimal selection module is used to select the optimal life prediction result from the weight life prediction result and the thickness life prediction result according to preset requirements.

[0026] Preferably, the first calculation module includes:

[0027] A weight calculation submodule, for calculating the annual corrosion weight of the zinc strip according to the drainage volume and the total weight of the drainage zinc strip based on the Faraday formula;

[0028] A thickness calculation submodule, used for calculating the total thickness of the drainage zinc strip according to the total weight of the drainage zinc strip;

[0029] The corrosion rate calculation submodule is used to calculate the annual corrosion rate of the zinc strip according to the drainage volume and the total thickness of the drainage zinc strip based on the Faraday formula.

[0030] Preferably, it also includes:

[0031] The data query module is used to query parameters in a preset zinc strip specification parameter table to obtain the total weight and total thickness of the drainage zinc strip.

[0032] Preferably, it also includes:

[0033] The self-corrosion simulation module is used to perform self-corrosion simulation operations according to the total weight and total thickness of the drainage zinc strip through experimental simulation to obtain the annual self-corrosion weight and annual self-corrosion rate of the zinc strip.

[0034] Preferably, the second calculation module specifically includes:

[0035] A weight prediction submodule, used for dividing the current weight of the drainage zinc strip by the annual corrosion weight of the zinc strip to obtain a weight life prediction result;

[0036] The corrosion rate prediction submodule is used to divide the current zinc strip thickness of the drainage zinc strip by the zinc strip corrosion rate to obtain a thickness life prediction result.

[0037] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0038] In the present application, a method for predicting the life of a zinc strip under high-voltage direct current interference is provided, comprising: obtaining the discharge flow of the discharge zinc strip under high-voltage direct current interference through a preset current monitoring device, the discharge flow including current and time, and the preset current monitoring device including a monitoring resistor; calculating the annual corrosion weight and the annual corrosion rate of the zinc strip according to the discharge flow and the total weight of the discharge zinc strip based on the Faraday formula; calculating the weight life prediction result and the thickness life prediction result respectively according to the current weight of the discharge zinc strip, the current thickness of the zinc strip, the annual corrosion weight of the zinc strip and the annual corrosion rate of the zinc strip; and selecting the optimal life prediction result from the weight life prediction result and the thickness life prediction result according to preset requirements.

[0039] The method for predicting the life of zinc strip under high-voltage DC interference provided by the present application selects two benchmarks, the annual corrosion weight and annual corrosion rate of the zinc strip, for analysis and calculation in order to accurately predict the life of the drainage zinc strip. The annual corrosion weight and corrosion rate are calculated according to the stray current of the drainage zinc strip under high-voltage DC interference collected by the preset current monitoring device and the collection time, and then the remaining service life can be calculated according to the current weight and thickness of the drainage zinc strip. Therefore, the present application can solve the technical problem that the existing technology lacks research and analysis on the life of zinc strip under high-voltage DC interference, resulting in the lack of reliability of the actual drainage process. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic flow chart of a method for predicting the life of a zinc strip under high voltage DC interference provided in an embodiment of the present application;

[0041] Figure 2 A schematic diagram of the structure of a zinc strip life prediction device under high voltage DC interference provided in an embodiment of the present application;

[0042] Figure 3 A schematic diagram of the zinc strip drainage process provided as background technology for this application;

[0043] Figure 4 A schematic diagram of current monitoring during zinc strip discharge provided in an embodiment of the present application;

[0044] Figure 5 This is a schematic cross-sectional view of a zinc strip provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] For easier understanding, see Figure 1 The present application provides an embodiment of a method for predicting the life of a zinc strip under high voltage DC interference, comprising:

[0047] Step 101: obtaining the discharge flow of the zinc strip under high voltage direct current interference through a preset current monitoring device, wherein the discharge flow includes current and time, and the preset current monitoring device includes a monitoring resistor.

[0048] See also Figure 4 In addition to the monitoring resistor, the preset current monitoring device also includes a voltmeter for obtaining the voltage value on the monitoring resistor. Based on Ohm's law, the stray current can be calculated according to the voltage value and the resistance value of the monitoring resistor, that is, the surface current of the zinc strip when the grounding electrode is running in a single pole. At the same time, the monitoring time at this time can be recorded to obtain the discharge flow, that is, the acquisition process of the two parameters of current and time. Since this embodiment is based on the life prediction of annual corrosion, the discharge flow is collected every time the high-voltage DC runs in a single pole, and the data of the monitoring device can be recorded once, which is recorded as n.

[0049] Step 102: Based on the Faraday formula, the annual corrosion weight and annual corrosion rate of the zinc strip are calculated according to the drainage volume and the total weight of the discharged zinc strip.

[0050] Further, step 102 includes:

[0051] Based on Faraday's formula, the annual corrosion weight of the zinc strip is calculated according to the drainage volume and the total weight of the drainage zinc strip;

[0052] Calculate the total thickness of the drainage zinc strip by the total weight of the drainage zinc strip;

[0053] Based on Faraday's formula, the annual corrosion rate of the zinc strip is calculated according to the drainage volume and the total thickness of the drainage zinc strip.

[0054] The total weight of each drainage zinc strip is a parameter that can be determined in the early stage, and the total weight divided by the zinc strip density can get the zinc strip volume, and the zinc strip volume divided by the surface area can get the total thickness of the drainage zinc strip. Based on the total weight and total thickness of the drainage zinc strip, the annual corrosion weight and annual corrosion rate of the zinc strip can be calculated respectively.

[0055] Faraday's law describes the relationship between the amount of electricity passing through the electrode and the weight of the electrode reactant, also known as the electrolysis law; the Faraday formula for calculating the annual corrosion weight of the zinc strip applicable to this embodiment constructed based on this law is:

[0056]

[0057] Among them, W 高压直流 is the annual corrosion weight of the zinc strip, M is the total weight of the zinc strip, n is the number of times the current is obtained, F is the Faraday constant, t, t1…t n are the time when the current is obtained, I corr ,I corr1 ……I corrn are the current values ​​obtained, and e is the number of electrons transferred when the zinc strip flows out of the oxidation reaction.

[0058] After the total thickness of the drainage zinc strip is obtained, the annual corrosion rate of the zinc strip can be calculated according to the above Faraday formula:

[0059]

[0060] Among them, r 高压直流 is the annual corrosion rate of the zinc strip, A is the surface area of ​​the zinc strip, ρ is the density of the zinc strip, T1… T n It is the length of time that the stray current flows out. It can be understood that no matter the weight consumption and the thickness consumption of the zinc strip during the corrosion process, it can reflect the corrosion condition of the zinc strip, and on this basis, the remaining service life of the zinc strip can be predicted.

[0061] Furthermore, step 102, before that, also includes:

[0062] Query the parameters in the preset zinc strip specification parameter table to obtain the total weight and total thickness of the drainage zinc strip.

[0063] It should be noted that there is not a single way to obtain the parameters of the drainage zinc strip. In addition to obtaining them through physical calculations, they can also be read directly from the factory zinc strip specification parameter table. The preset zinc strip specification parameter table can be the parameter table during zinc strip production, or it can be a pre-configured parameter table. The specific parameters can be obtained based on actual conditions and are not limited here.

[0064] Furthermore, step 102 further includes:

[0065] Through experimental simulation, the self-corrosion simulation operation was carried out according to the total weight and total thickness of the drainage zinc strip, and the annual self-corrosion weight and annual self-corrosion rate of the zinc strip were obtained.

[0066] It is understandable that, in addition to the corrosion that affects the life of the zinc strip under the high voltage DC interference mentioned in this embodiment, the zinc strip will also corrode under natural conditions, that is, the natural corrosion of the zinc strip in the soil. Based on the weight and thickness in this embodiment, it is described as the annual self-corrosion weight W of the zinc strip. 自腐蚀 The annual corrosion rate of zinc strip is r 自腐蚀 .

[0067] In order to make the zinc strip life prediction more accurate and reliable, in addition to considering the impact of high-voltage direct current, the natural corrosion of the drainage zinc strip can also be simulated by experimental simulation. According to the total weight and total thickness of the drainage zinc strip, the natural corrosion conditions of the zinc strip in the soil are given, and the weight and thickness change information during the corrosion process is recorded, and the annual self-corrosion weight W of the zinc strip can be obtained. 自腐蚀 The annual corrosion rate of zinc strip is r 自腐蚀 .

[0068] Zinc strip annual self-corrosion weight W 自腐蚀 The annual corrosion rate of zinc strip is r 自腐蚀 Annual corrosion weight of zinc strip W 高压直流 Annual corrosion rate of zinc strip r 高压直流 There is no contradiction and they can be considered at the same time. Simply adding the corrosion parameters corresponding to the weight and the corrosion parameters corresponding to the thickness can give a more accurate annual corrosion condition of the drainage zinc strip.

[0069] Step 103, respectively calculating a weight life prediction result and a thickness life prediction result according to the current weight of the drainage zinc strip, the current zinc strip thickness, the annual corrosion weight of the zinc strip, and the annual corrosion rate of the zinc strip.

[0070] Furthermore, step 103 includes:

[0071] The current weight of the drainage zinc strip is divided by the annual corrosion weight of the zinc strip to obtain the weight life prediction result;

[0072] The thickness life prediction result is obtained by dividing the current zinc strip thickness of the drain zinc strip by the zinc strip corrosion rate.

[0073] The life prediction results are also based on weight and thickness respectively. The above self-corrosion situation can be taken into account, and the annual corrosion weight and annual corrosion rate of the zinc strip under high voltage direct current can be updated without affecting the calculation method of the life prediction results.

[0074] The current weight and the current zinc strip thickness are both the remaining conditions of the drained zinc strip. Dividing the current condition of the zinc strip by the annual loss due to corrosion can give the remaining usable years, i.e., the remaining lifespan.

[0075] Step 104: Select the optimal life prediction result from the weight life prediction results and the thickness life prediction results according to preset requirements.

[0076] There must be a certain degree of deviation between the weight life prediction results and the thickness life prediction results. At this time, parameter selection can be made according to the specific application of the zinc strip life prediction results, that is, preset requirements. If the application scenario has high requirements for the normal service life of the zinc strip, the smaller value in the life prediction results is selected as the theoretical support. If the normal service life of the zinc strip is required to be lower, or even if the zinc strip is corroded and damaged to a certain extent, it will not have a major impact, then the larger value in the life prediction results can be selected as the theoretical support. The specific selection requirements or standards are not limited here.

[0077] For ease of understanding, the present application also provides a specific application example, giving a strip of zinc, such as Figure 5 This is a cross-sectional view of the zinc strip, and also gives an example of important parameters in the preset zinc strip specification parameter table, please refer to Table 1.

[0078] Table 1 List of cross-sectional dimensions of four types of zinc strip anodes

[0079]

[0080]

[0081] Table 1 shows the cross-sectional dimensions of four types of zinc strip anodes, which can be used to directly read the surface area. The specific length of the zinc strip can be measured. This application example uses a 100m long strip with a density of 7.14g / cm 3 Taking the zinc strip of as an example, in the calculation process, e=2, M=96500, based on the read parameters, the annual corrosion weight and annual corrosion rate of each specification of zinc strip can be calculated respectively. Specifically, according to the current and time of zinc strip flowing out in one year during the period when the pipeline is disturbed by high voltage DC, the corrosion loss and corrosion rate of four types of zinc strips are calculated as shown in Table 2 and Table 3.

[0082] Table 2 List of parameters of four types of zinc strips

[0083]

[0084] Table 3 List of corrosion rates of four types of zinc strips

[0085]

[0086]

[0087] The discharge frequency is the number of times a grounding electrode operates in a single pole in a year. The 10 times in Table 2 and Table 3 are the frequencies of zinc strip flowing out when the grounding electrode operates in a single pole. For the four models ZR1, ZR2, ZR3 and ZR4 in Table 2 and Table 3. Taking ZR1 as an example, and the length of the zinc strip is 100m, the surface area calculation formula is: the two bottom areas of the zinc strip plus the side area, the bottom area is D1*D2*2+(D1+D2)*2*100 in Table 1; the side area of ​​the zinc strip is the maximum value of D1 and D2 in Table 1 multiplied by the length of the zinc strip, and the side area is 31.75*100. Others can be calculated based on this example.

[0088] The annual self-corrosion rate of the zinc strip obtained by experimental simulation is between 0.03 and 0.04 mm / y (millimeter / year), which is converted into an annual self-corrosion weight of approximately 2.34 to 3.12 kg. Taking a 100-meter-long zinc strip as an example, the weight loss and corrosion rate life predictions for four types of zinc strips during high-voltage DC interference are shown in Table 4.

[0089] Table 4 List of life prediction results of four specifications of zinc strip

[0090] ZR1 ZR2 ZR3 ZR4 Comprehensive annual corrosion weight (g) 4340 4340 4340 4340 Comprehensive annual corrosion rate (mm / y) 0.094 0.116 0.159 0.205 Total weight (g) 571271.4 251937.5 129488.2 64326.83 Total thickness(mm) 12.7 7.94 6.35 4.365 Weight life prediction results (years) 131.6293548 58.05011 29.83599 14.82185 Thickness life prediction results (years) 135.106383 68.44828 39.93711 21.29268

[0091] Taking ZR1 as an example, the comprehensive annual corrosion weight is the sum of the weight loss caused by high-voltage direct current in Table 2 and the self-corrosion weight loss measured in the laboratory, that is, 1.22kg+3.12kg is 4.34kg, 4340g. The comprehensive annual corrosion rate is the corrosion rate caused by high-voltage direct current in Table 3 plus the self-corrosion rate, that is, 0.05384mm / y+0.04mm / y is 0.094mm / y. The total weight volume is multiplied by the density, that is, D1*D2*100*7.14=571271.4g. The total thickness is half of the minimum value of D1 and D2 in Table 1, that is, 25.4 / 2 is 12.7. It should be noted that according to the corrosion rate calculation, the life is terminated mainly when the thickness is reduced to the minimum, and there is a copper core in the middle of the zinc strip. If the thickness loses to half of the side length, the zinc strip will fail, so the calculation is half.

[0092] The zinc strip life prediction method under high-voltage DC interference provided in the embodiment of the present application, in order to accurately predict the life of the drainage zinc strip, selects the annual corrosion weight and annual corrosion rate of the zinc strip for analysis and calculation, and calculates the corrosion weight and corrosion rate of one year according to the stray current of the drainage zinc strip under high-voltage DC interference collected by the preset current monitoring device and the collection time, and then the remaining service life can be calculated according to the current weight and thickness of the drainage zinc strip. Therefore, the embodiment of the present application can solve the technical problem that the existing technology lacks research and analysis on the life of the zinc strip under high-voltage DC interference, resulting in the lack of reliability of the actual drainage process.

[0093] For easier understanding, see Figure 2 The present application provides an embodiment of a zinc strip life prediction device under high voltage DC interference, comprising:

[0094] The data monitoring module 201 uses a preset current monitoring device to obtain the discharge flow of the zinc strip under high voltage DC interference, the discharge flow includes current and time, and the preset current monitoring device includes a monitoring resistor;

[0095] A first calculation module 202 is used to calculate the annual corrosion weight and annual corrosion rate of the zinc strip according to the drainage volume and the total weight of the drainage zinc strip based on the Faraday formula;

[0096] A second calculation module 203 is used to calculate a weight life prediction result and a thickness life prediction result according to the current weight of the drainage zinc strip, the current zinc strip thickness, the annual corrosion weight of the zinc strip and the annual corrosion rate of the zinc strip;

[0097] The optimal selection module 204 is used to select the optimal life prediction result from the weight life prediction results and the thickness life prediction results according to preset requirements.

[0098] Furthermore, the first calculation module 202 includes:

[0099] The weight calculation submodule 221 is used to calculate the annual corrosion weight of the zinc strip according to the drainage volume and the total weight of the drainage zinc strip based on the Faraday formula;

[0100] A thickness calculation submodule 2022, for calculating the total thickness of the drainage zinc strip according to the total weight of the drainage zinc strip;

[0101] The corrosion rate calculation submodule 2023 is used to calculate the annual corrosion rate of the zinc strip according to the drainage volume and the total thickness of the drainage zinc strip based on the Faraday formula.

[0102] Furthermore, it also includes:

[0103] The data query module 205 is used to query parameters in the preset zinc strip specification parameter table to obtain the total weight and total thickness of the drainage zinc strip.

[0104] Furthermore, it also includes:

[0105] The self-corrosion simulation module 206 is used to perform self-corrosion simulation operations according to the total weight and total thickness of the drained zinc strip by experimental simulation to obtain the annual self-corrosion weight and annual self-corrosion rate of the zinc strip.

[0106] Furthermore, the second calculation module 203 specifically includes:

[0107] The weight prediction submodule 2031 is used to divide the current weight of the drainage zinc strip by the annual corrosion weight of the zinc strip to obtain a weight life prediction result;

[0108] The corrosion rate prediction submodule 2032 is used to divide the current zinc strip thickness of the drainage zinc strip by the zinc strip corrosion rate to obtain a thickness life prediction result.

[0109] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0110] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0111] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0112] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for executing all or part of the steps of the method described in each embodiment of the present application through a computer device (which can be a personal computer, a server, or a network device, etc.). The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (full name in English: Read-Only Memory, English abbreviation: ROM), random access memory (full name in English: Random Access Memory, English abbreviation: RAM), disk or optical disk and other media that can store program codes.

[0113] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for predicting the life of a zinc strip under high voltage direct current interference, characterized in that: include: The discharge flow of the zinc strip under high voltage direct current interference is obtained by a preset current monitoring device, wherein the discharge flow includes current and time, and the preset current monitoring device includes a monitoring resistor; Based on the Faraday formula, the annual corrosion weight of the zinc strip and the annual corrosion rate of the zinc strip are calculated according to the drainage volume and the total weight of the drainage zinc strip. The Faraday formula is: Among them, W 高压直流 is the annual corrosion weight of the zinc strip, M is the total weight of the zinc strip, n is the number of times the current is obtained, F is the Faraday constant, t, t1…t n are the time when the current is obtained, I corr ,I corr1 ……I corrn are the current values ​​obtained, e is the number of electrons transferred when the zinc strip flows out of the current and undergoes oxidation reaction; The annual corrosion rate of the zinc strip is calculated according to the Faraday formula: Among them, r 高压直流 is the annual corrosion rate of the zinc strip, A is the surface area of ​​the zinc strip, ρ is the density of the zinc strip, T1…T n is the duration of stray current flow; The weight life prediction result and the thickness life prediction result are calculated respectively according to the current weight of the drainage zinc strip, the current zinc strip thickness, the annual corrosion weight of the zinc strip and the annual corrosion rate of the zinc strip. The specific process is as follows: Dividing the current weight of the drainage zinc strip by the annual corrosion weight of the zinc strip to obtain a weight life prediction result; Dividing the current zinc strip thickness of the drainage zinc strip by the annual corrosion rate of the zinc strip to obtain a thickness life prediction result; The optimal life prediction result is selected from the weight life prediction result and the thickness life prediction result according to preset requirements.

2. The method for predicting the life of a zinc strip under high voltage direct current interference according to claim 1, characterized in that: The method of calculating the annual corrosion weight and annual corrosion rate of the zinc strip based on the Faraday formula according to the drainage volume and the total weight of the drainage zinc strip comprises: Based on Faraday's formula, the annual corrosion weight of the zinc strip is calculated according to the drainage volume and the total weight of the drainage zinc strip; Calculate the total thickness of the drainage zinc strip by the total weight of the drainage zinc strip; Based on Faraday's formula, the annual corrosion rate of the zinc strip is calculated according to the drainage volume and the total thickness of the drainage zinc strip.

3. The method for predicting the life of a zinc strip under high voltage direct current interference according to claim 2, characterized in that: The method further comprises: calculating the annual corrosion rate of the zinc strip according to the drainage volume and the total thickness of the drainage zinc strip based on the Faraday formula; Parameters are searched in the preset zinc strip specification parameter table to obtain the total weight and total thickness of the drainage zinc strip.

4. The method for predicting the life of a zinc strip under high voltage direct current interference according to claim 3, characterized in that: The method of calculating the annual corrosion weight and annual corrosion rate of the zinc strip according to the drainage volume and the total weight of the drainage zinc strip based on the Faraday formula also includes: By means of experimental simulation, a self-corrosion simulation operation is performed according to the total weight and total thickness of the drainage zinc strip to obtain the annual self-corrosion weight and annual self-corrosion rate of the zinc strip.

5. A device for predicting the life of a zinc strip under high voltage DC interference, characterized in that: include: A data monitoring module, which uses a preset current monitoring device to obtain the discharge flow of the discharge zinc strip under high voltage DC interference, wherein the discharge flow includes current and time, and the preset current monitoring device includes a monitoring resistor; The first calculation module is used to calculate the annual corrosion weight and annual corrosion rate of the zinc strip according to the drainage volume and the total weight of the drainage zinc strip based on the Faraday formula, and the Faraday formula is: Among them, W 高压直流 is the annual corrosion weight of the zinc strip, M is the total weight of the zinc strip, n is the number of times the current is obtained, F is the Faraday constant, t, t1…t n are the time when the current is obtained, I corr ,I corr1 ……I corrn are the current values ​​obtained, e is the number of electrons transferred when the zinc strip flows out of the current and undergoes oxidation reaction; The annual corrosion rate of the zinc strip is calculated according to the Faraday formula: Among them, r 高压直流 is the annual corrosion rate of the zinc strip, A is the surface area of ​​the zinc strip, ρ is the density of the zinc strip, T1…T n is the duration of stray current flow; The second calculation module is used to calculate the weight life prediction result and the thickness life prediction result according to the current weight of the drainage zinc strip, the current zinc strip thickness, the annual corrosion weight of the zinc strip and the annual corrosion rate of the zinc strip. The second calculation module specifically includes: A weight prediction submodule, used for dividing the current weight of the drainage zinc strip by the annual corrosion weight of the zinc strip to obtain a weight life prediction result; A corrosion rate prediction submodule, used for dividing the current zinc strip thickness of the drainage zinc strip by the annual corrosion rate of the zinc strip to obtain a thickness life prediction result; The optimal selection module is used to select the optimal life prediction result from the weight life prediction result and the thickness life prediction result according to preset requirements.

6. The device for predicting the life of a zinc strip under high voltage DC interference according to claim 5, characterized in that: The first calculation module includes: A weight calculation submodule, for calculating the annual corrosion weight of the zinc strip according to the drainage volume and the total weight of the drainage zinc strip based on the Faraday formula; A thickness calculation submodule, used for calculating the total thickness of the drainage zinc strip according to the total weight of the drainage zinc strip; The corrosion rate calculation submodule is used to calculate the annual corrosion rate of the zinc strip according to the drainage volume and the total thickness of the drainage zinc strip based on the Faraday formula.

7. The device for predicting the life of a zinc strip under high voltage DC interference according to claim 6, characterized in that: Also includes: The data query module is used to query parameters in a preset zinc strip specification parameter table to obtain the total weight and total thickness of the drainage zinc strip.

8. The device for predicting the life of a zinc strip under high voltage direct current interference according to claim 7, characterized in that: Also includes: The self-corrosion simulation module is used to perform self-corrosion simulation operations according to the total weight and total thickness of the drainage zinc strip through experimental simulation to obtain the annual self-corrosion weight and annual self-corrosion rate of the zinc strip.

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