AEM hydrogen production equipment anti-corrosion parameter strengthening system adapting to marine environment

Abstract

The invention relates to the technical field of hydrogen production, in particular to an AEM hydrogen production equipment anti-corrosion parameter strengthening system adapting to a marine environment. Comprising an environmental parameter monitoring module, an equipment state sensing module, a central processing module and an anti-corrosion execution module, the environmental parameter monitoring module is configured to collect salt mist concentration, atmospheric humidity, seawater splashing frequency and illumination intensity in a marine environment in real time; the equipment state sensing module is configured to obtain the polar plate temperature of the AEM hydrogen production equipment, the working voltage of a membrane electrode assembly, the internal pressure of an electrolytic bath and the surface potential of a metal connecting piece; the central processing module is in communication connection with the environment parameter monitoring module and the equipment state sensing module and is used for generating a dynamic anti-corrosion parameter adjusting instruction according to the coupling relation between the environment parameters and the equipment state parameters. And the corrosion resistance of the equipment in a marine environment is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of hydrogen production, and in particular to an AEM hydrogen production equipment corrosion parameter strengthening system suitable for marine environments. BACKGROUND

[0002] In the field of marine development, AEM anion exchange membrane hydrogen production equipment is widely used due to its high efficiency and cleanliness. However, the metal parts, sealing structures and core plates of the equipment are prone to corrosion when exposed to complex marine environments such as high salt mist, high humidity and seawater splashing, which directly affects the hydrogen production efficiency and operational safety. At present, the corrosion protection measures for AEM hydrogen production equipment mostly adopt a fixed parameter control mode, that is, a corrosion protection strategy is set according to preset environmental thresholds or equipment operating parameters, such as a fixed plate protection current, a sealing element vibration frequency and a coating repair rate. However, the marine environment is highly dynamic, and environmental parameters such as salt mist concentration and seawater splashing frequency change constantly. Meanwhile, state parameters such as plate temperature and electrolytic cell pressure fluctuate during equipment operation. The coupling of environmental factors and equipment state parameters can significantly change the corrosion mechanism and rate. The existing fixed parameter corrosion protection system cannot respond to the above coupling changes in real time, and problems such as insufficient corrosion protection in high salt mist environments and over-protection in low salt environments often occur. Moreover, the plate protection, sealing protection and coating repair subsystems operate independently and lack a collaborative adjustment mechanism, resulting in unstable overall corrosion protection effect, shortened equipment maintenance period and serious constraints on the long-term reliable application of AEM hydrogen production equipment in marine environments.

[0003] Therefore, there is an urgent need for a corrosion parameter strengthening technology that can dynamically adapt to the coupling changes of the environment and equipment state to improve the corrosion resistance of the equipment in marine environments. SUMMARY

[0004] The purpose of the present application is to solve the shortcomings in the prior art, and the AEM hydrogen production equipment corrosion parameter strengthening system suitable for marine environments is proposed, which comprises an environmental parameter monitoring module, an equipment state sensing module, a central processing module and a corrosion execution module. The environmental parameter monitoring module is configured to collect the salt mist concentration, atmospheric humidity, seawater splashing frequency and light intensity in the marine environment in real time. The equipment state sensing module is configured to obtain the plate temperature of the AEM hydrogen production equipment, the working voltage of the membrane electrode assembly, the internal pressure of the electrolytic cell and the surface potential of the metal connecting piece. The central processing module is in communication connection with the environmental parameter monitoring module and the equipment state sensing module, and is used to generate a dynamic corrosion parameter adjustment instruction according to the coupling relationship between the environmental parameters and the equipment state parameters. The dynamic corrosion parameter adjustment instruction includes the pulse current density for the plate, the ultrasonic vibration frequency for the sealing element and the nano coating repair rate for the metal surface. The anti-corrosion execution module adjusts the electrochemical protection current of the polar plate through the pulse power supply adjustment unit, adjusts the vibration parameters of the sealing element through the ultrasonic generating device, and controls the deposition rate of the nano coating through the plasma spraying equipment, so as to realize the synergistic strengthening of the multi-dimensional anti-corrosion parameters of the AEM hydrogen production equipment in the marine environment.

[0005] Preferably, the environmental parameter monitoring module comprises a salt mist concentration sensor, a temperature and humidity integrated sensor, a piezoelectric splash counter and a photosynthetically active radiation sensor, wherein the sampling frequency of the salt mist concentration sensor is 1 Hz, the measurement accuracy of the temperature and humidity integrated sensor is ±2%RH / ±0.5℃, the response threshold of the piezoelectric splash counter is set to 0.1 MPa impact pressure, and the measurement range of the photosynthetically active radiation sensor is 0-2000 μmol / m²·s.

[0006] Further preferably, the device state sensing module comprises an infrared temperature sensor, a high-frequency voltage probe, a piezoresistive pressure transmitter and a reference electrode, wherein the measurement distance of the infrared temperature sensor is 0.5-5 m, the bandwidth of the high-frequency voltage probe is 1 MHz-1 GHz, the range of the piezoresistive pressure transmitter is 0-10 MPa, the reference electrode is a silver / silver chloride electrode and the potential stability is ≤±1 mV / 24 h.

[0007] Further preferably, the central processing module comprises a data preprocessing unit, a coupling analysis unit and an instruction generation unit, the data preprocessing unit performs filtering and denoising processing on the collected environmental parameters and device state parameters, the coupling analysis unit establishes a nonlinear mapping relationship between the parameters using an improved random forest algorithm, and the instruction generation unit outputs an anti-corrosion parameter adjustment instruction with time sequence characteristics based on the mapping relationship.

[0008] Further preferably, the central processing module calculates the pulse current density of the polar plate by the following formula: ; Wherein, is the pulse current density (A / m²), is the reference current density (A / m²), is the salt mist influence coefficient (value range 0.3-0.8), is the real-time salt mist concentration (mg / m³), is the standard salt mist concentration (mg / m³), is the real-time polar plate temperature (℃), is the reference polar plate temperature (℃), is the temperature reference value (take 298K), is the pulse frequency (Hz), is the time (s), is the initial phase angle (rad).

[0009] Further preferably, the central processing module calculates the ultrasonic vibration frequency of the seal by the following formula: ; in, is the ultrasonic vibration frequency (kHz), is the reference vibration frequency (kHz), is the density of seawater (kg / m³), is the seawater splash velocity (m / s), is the real-time seawater splash frequency (times / min), is the air density (kg / m³), is the air velocity (m / s), is the reference splash frequency (times / min), is the voltage influence coefficient (value range 0.1-0.3), is the real-time operating voltage of the membrane electrode assembly (V), is the reference operating voltage of the membrane electrode assembly (V).

[0010] Further preferably, the central processing module calculates the repair rate of the nanocoating by the following formula: ; in, is the nanocoating repair rate (μm / h), is the benchmark repair rate (μm / h), is the real-time internal pressure of the electrolytic cell (MPa), is the reference internal pressure of the electrolytic cell (MPa), is the pressure sensitivity index (range 0.5-1.2), is the potential influence coefficient (value range 1.5-3.0), is the difference between the surface potential of the metal connector and the reference potential (mV), is the standard electrode potential (mV), is the illumination influence coefficient (value range 0.05-0.2), is the real-time light intensity (μmol / m²·s), is the reference light intensity (μmol / m²·s).

[0011] Further preferably, the pulse power regulating unit comprises an IGBT full-bridge inverter circuit, an LC filter module and a current feedback sensor, wherein the switching frequency of the IGBT full-bridge inverter circuit is 20 kHz-50 kHz, the cutoff frequency of the LC filter module is 1 kHz, the measurement range of the current feedback sensor is 0-50 A, and the feedback delay time is ≤10 µs.

[0012] Further preferably, the ultrasonic generating device comprises a piezoelectric ceramic transducer, an amplitude horn and an amplitude regulator, wherein the resonant frequency of the piezoelectric ceramic transducer is 20 kHz-40 kHz, the amplification coefficient of the amplitude horn is 1.5-3.0, and the adjustment accuracy of the amplitude regulator is ±0.1 µm.

[0013] Further preferably, the plasma spraying equipment comprises a plasma spraying gun, a powder feeder and a displacement platform, wherein the arc voltage range of the plasma spraying gun is 60 V-120 V, the powder feeding rate of the powder feeder is 5 g / min-50 g / min, the positioning accuracy of the displacement platform is ±0.01 mm, and the spraying angle can be continuously adjusted within the range of 30°-90°.

[0014] Technical effects: The present application generates dynamic anti-corrosion parameter adjustment instructions through coupling analysis of environmental parameters and equipment state parameters, realizes multi-subsystem collaborative reinforcement, and creatively solves the problem that the existing fixed parameter system cannot respond to the coupling changes of marine environment and equipment state. The dynamic adjustment mechanism can adapt to the fluctuations of salt spray, temperature and other parameters in real time, avoiding over-protection or under-protection; multiple modules collaboratively eliminate subsystem parameter conflicts, improve the overall anti-corrosion effect, prolong the equipment maintenance cycle, and meet the long-term reliable operation requirements of AEM hydrogen production equipment in marine environment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The figure is a block diagram of the AEM hydrogen production equipment anti-corrosion parameter reinforcement system of the present application adapted to marine environment. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0017] The traditional technical solution has the following technical problems: the existing AEM hydrogen production equipment corrosion prevention system adopts a fixed parameter protection mode, which cannot adjust the corrosion prevention strategy in real time according to the dynamic changes of the marine environment, resulting in a significant decrease in corrosion prevention effect under extreme working conditions such as sudden increase in salt mist concentration and increase in seawater splashing frequency; at the same time, the existing system does not establish a coupling relationship between environmental parameters and equipment state parameters, and only uses a single environmental factor or equipment state parameter for corrosion prevention control, which is prone to over-protection or under-protection, increasing energy consumption and failing to ensure long-term stable operation of the equipment; in addition, the subsystems of the existing corrosion prevention execution module work independently, lacking a collaborative linkage mechanism, resulting in parameter conflicts between the plate electrochemical protection, sealing protection and nano coating repair, affecting the overall corrosion prevention effect.

[0018] Based on this, please refer to Figure 1 The embodiment provides an AEM hydrogen production equipment corrosion prevention parameter strengthening system suitable for a marine environment, comprising an environmental parameter monitoring module, an equipment state sensing module, a central processing module and a corrosion prevention execution module; the environmental parameter monitoring module is configured to collect salt mist concentration, atmospheric humidity, seawater splashing frequency and light intensity in the marine environment in real time; the equipment state sensing module is configured to obtain the plate temperature of the AEM hydrogen production equipment, the working voltage of the membrane electrode assembly, the internal pressure of the electrolytic cell and the surface potential of the metal connecting piece; the central processing module is in communication connection with the environmental parameter monitoring module and the equipment state sensing module, and is used to generate a dynamic corrosion prevention parameter adjustment instruction according to the coupling relationship between the environmental parameters and the equipment state parameters, wherein the dynamic corrosion prevention parameter adjustment instruction comprises a pulse current density for the plate, an ultrasonic vibration frequency for the sealing piece and a nano coating repair rate for the metal surface; and the corrosion prevention execution module responds to the dynamic corrosion prevention parameter adjustment instruction, changes the electrochemical protection current of the plate through a pulse power adjustment unit, adjusts the vibration parameters of the sealing piece through an ultrasonic generating device, and controls the deposition rate of the nano coating through a plasma spraying device, so as to realize collaborative strengthening of the multi-dimensional corrosion prevention parameters of the AEM hydrogen production equipment in the marine environment.

[0019] The scheme solves the problems of poor adaptability of the traditional fixed parameter corrosion prevention mode and insufficient control precision of a single parameter, realizes dynamicization and precision of the corrosion prevention strategy, and forms an organic linkage among the plate protection, sealing protection and coating repair through the collaborative control logic of the central processing module, avoiding parameter conflicts when the subsystems work independently and improving the overall corrosion prevention efficiency It is worth mentioning that the environmental parameter monitoring module simultaneously collects multi-dimensional environmental factors such as salt mist concentration and atmospheric humidity, the equipment state perception module synchronously acquires equipment operating parameters such as plate temperature and membrane electrode voltage, and the central processing module generates dynamic adjustment instructions based on these coupled parameters, which can cover various corrosion scenarios of the AEM hydrogen production equipment in the marine environment. The technical effects achieved by the above embodiments include: the dynamic corrosion prevention parameter adjustment mechanism can enable the system to quickly respond when the marine environment changes dramatically, avoiding the intensification of equipment corrosion caused by parameter lag; the multi-parameter coupled control mode reduces the influence of single parameter fluctuation on the corrosion prevention effect, improving the stability and reliability of the system; the coordinated work of each corrosion prevention subsystem reduces energy waste, prolongs the maintenance cycle of the equipment while ensuring the corrosion prevention effect, and provides strong support for the long-term and efficient operation of the AEM hydrogen production equipment in the marine environment.

[0020] The traditional technical solution has the following technical problems: the existing environmental monitoring module mostly uses single sensor or low-precision sensor combination, the types of environmental parameters collected are limited and the measurement error is large, which cannot accurately reflect the complex corrosion conditions of the marine environment; the sampling frequency of the sensor is fixed and low, which is difficult to capture transient environmental changes such as sudden change of salt mist concentration and sudden change of seawater splashing frequency, resulting in response lag of the corrosion prevention system; at the same time, the existing sensor lacks special design for high-humidity and high-salt marine environment, which is easy to cause measurement accuracy to decrease due to corrosion or fouling of the sensor itself, affecting the accuracy of subsequent corrosion prevention parameter adjustment.

[0021] Based on this, the environmental parameter monitoring module includes a salt mist concentration sensor, a temperature and humidity integrated sensor, a piezoelectric splash counter and a photosynthetic active radiation sensor, wherein the sampling frequency of the salt mist concentration sensor is 1Hz, the measurement accuracy of the temperature and humidity integrated sensor is ±2%RH / ±0.5℃, the response threshold of the piezoelectric splash counter is set to 0.1MPa impact pressure, and the measurement range of the photosynthetic active radiation sensor is 0-2000μmol / m²·s.

[0022] This scheme solves the problems of incomplete parameter collection and insufficient accuracy of the traditional monitoring module by configuring multiple types of high-precision sensors, achieving comprehensive and accurate monitoring of key corrosion factors in the marine environment; at the same time, special sampling frequency and response threshold are set according to the characteristics of different environmental parameters, ensuring the timely capture of transient environmental changes, providing a data basis for the rapid response of the corrosion prevention system.

[0023] It is worth mentioning that the salt mist concentration sensor adopts a sampling frequency of 1 Hz, which can track the dynamic changes of the salt mist concentration in real time, avoiding the omission of concentration fluctuations caused by too long sampling intervals; the high-precision design of the integrated temperature and humidity sensor ensures accurate measurement of the marine high-humidity environment, providing reliable data for evaluating the impact of humidity on corrosion rate; the response threshold of the piezoelectric splash counter is set to 0.1 MPa, which can effectively identify the impact of small seawater splashes on the surface of the equipment, avoiding the missed detection of splash events caused by too high threshold; the wide range design of the photosynthetically active radiation sensor can cover the light intensity changes at different times in the marine environment, providing a basis for analyzing the impact of light on the aging of nano coating.

[0024] The technical effects achieved by the above embodiments include: the cooperation of multiple sensors realizes the all-round monitoring of key parameters such as salt mist, humidity, seawater splashing, and light in marine environment, providing rich basic data for corrosion prevention parameter adjustment; the high-precision characteristics of each sensor ensure the accuracy of measurement data, reducing the deviation of corrosion prevention strategy caused by data error; the high response design for transient environmental changes enables the system to timely capture the mutation of corrosion conditions, providing time for rapid adjustment of the corrosion execution module; the special parameter setting of the sensor improves the adaptability to marine special environment, reduces the influence of sensor failure on monitoring effect, and improves the reliability and effectiveness of environmental parameter monitoring.

[0025] The traditional technical scheme has the following technical problems: the existing equipment state perception module does not comprehensively monitor the state of key components of AEM hydrogen production equipment, often ignoring parameters such as membrane electrode assembly operating voltage and metal connector surface potential that are closely related to corrosion, resulting in inability to accurately assess the corrosion risk inside the equipment; the measurement range and precision of the sensor cannot meet the special operation requirements of AEM hydrogen production equipment, for example, the close temperature measurement distance of the electrode plate is easily affected by electromagnetic interference, and the insufficient pressure measurement range of the electrolytic cell makes it difficult to cope with abnormal voltage conditions of the equipment; at the same time, the integration method of the existing sensor and equipment is unreasonable, which may lead to insufficient representativeness of the measurement data due to improper installation position, and cannot truly reflect the actual state of the core components of the equipment.

[0026] Therefore, the device state sensing module comprises an infrared temperature sensor, a high-frequency voltage probe, a piezoresistive pressure transmitter, and a reference electrode, wherein the measurement distance of the infrared temperature sensor is 0.5-5 m, the bandwidth of the high-frequency voltage probe is 1 MHz-1 GHz, the range of the piezoresistive pressure transmitter is 0-10 MPa, the reference electrode is a silver / silver chloride electrode, and the potential stability is ≤±1 mV / 24 h. The scheme solves the problems of incomplete monitoring parameters and poor measurement adaptability of the traditional sensing module by configuring special sensors for the core components of the AEM hydrogen production device, and realizes accurate evaluation of the device running state and corrosion risk; at the same time, the parameter settings of the sensors are highly matched with the characteristics of the device, ensuring the accuracy and representativeness of the measurement data.

[0027] It is worth mentioning that the measurement distance of 0.5-5 m of the infrared temperature sensor not only avoids electromagnetic interference in close-range measurement, but also ensures accurate capture of the temperature of the polar plate; the bandwidth range of 1 MHz-1 GHz of the high-frequency voltage probe can accurately measure the high-frequency fluctuations of the working voltage of the membrane electrode assembly, providing a key basis for evaluating the aging and corrosion degree of the membrane electrode; the wide range design of 0-10 MPa of the piezoresistive pressure transmitter can cover the pressure monitoring needs of various working conditions such as normal operation and abnormal voltage rise of the device; the high potential stability of the silver / silver chloride reference electrode ensures the long-term accuracy of the surface potential measurement of the metal connecting piece, and provides reliable data for judging the corrosion trend of the metal.

[0028] The technical effects achieved by the above embodiments include: comprehensive device state parameter acquisition enables the central processing module to evaluate the corrosion state of the device from multiple dimensions, avoiding misjudgment of corrosion risk due to missing key parameters; special parameter settings of the sensors improve the accuracy and relevance of the measurement data, ensuring the true reflection of the state of the core components of the device; reasonable measurement range and accuracy design enable the module to adapt to various operating conditions of the AEM hydrogen production device, including normal operation, start-up and shutdown, and abnormal failure, providing accurate device state basis for dynamic adjustment of corrosion parameters, effectively improving the early warning ability and control accuracy of the system for internal corrosion risk of the device.

[0029] The traditional technical scheme has the following technical problems: the data processing capacity of the existing central processing module is insufficient, the pre-processing method of environmental parameters and device state parameters is simple, and the characteristics of multiple data noises and strong interference in the marine environment are not considered, resulting in poor quality of the original data input for subsequent analysis; there is a lack of effective parameter coupling analysis algorithm, and only simple linear relationship is used to process environmental and device parameters, which cannot establish complex nonlinear correlation between the two, resulting in insufficient scientificity of the generated corrosion adjustment instructions; at the same time, the instruction generation mechanism lacks time sequence characteristics, and cannot make predictive adjustments according to the parameter change trend, but can only respond passively to the changes in corrosion conditions that have occurred, affecting the timeliness of the corrosion effect.

[0030] Based on this, the central processing module includes a data preprocessing unit, a coupling analysis unit, and an instruction generation unit. The data preprocessing unit performs filtering and denoising processing on the collected environmental parameters and equipment state parameters. The coupling analysis unit uses an improved random forest algorithm to establish a nonlinear mapping relationship between the parameters. The instruction generation unit outputs an anticorrosion parameter adjustment instruction with time series characteristics based on the mapping relationship. This scheme solves the problems of poor data quality, weak analysis capability, and instruction generation lag in traditional processing modules by constructing a central processing module with multiple units working together, achieving intelligent and forward-looking adjustment of anticorrosion parameters. At the same time, the design of special algorithms and processing logic improves the system's adaptability to complex marine environments and control accuracy.

[0031] It is worth mentioning that the filtering and denoising processing of the data preprocessing unit is specifically aimed at data noise caused by electromagnetic interference, salt spray attachment, etc. in marine environments. Through an adaptive filtering algorithm, it eliminates outliers and high-frequency interference, ensuring the data quality of the input analysis unit. The improved random forest algorithm used in the coupling analysis unit enhances the fitting ability of nonlinear coupling relationships by introducing interactive features of environmental parameters and equipment state parameters, enabling accurate capture of complex rules such as the influence of salt spray concentration and plate temperature synergy on corrosion rate. The time series feature design of the instruction generation unit makes short-term predictions based on parameter trends, making the output adjustment instruction forward-looking and avoiding the anticorrosion lag caused by traditional passive adjustment.

[0032] The above-mentioned embodiments achieve the following technical effects: The data preprocessing unit improves the signal-to-noise ratio of the original data, providing high-quality input for subsequent analysis and reducing the deviation of the adjustment instruction caused by data errors. The improved random forest algorithm enhances the modeling ability of nonlinear coupling relationships between parameters, making the generated anticorrosion parameter adjustment instruction more consistent with the actual corrosion law and improving the scientific nature of anticorrosion control. The instruction generation mechanism with time series characteristics enables the system to adjust the anticorrosion strategy in advance based on parameter trends, avoiding the anticorrosion lag caused by passive response, and overall improving the decision-making efficiency and control accuracy of the central processing module, providing core support for dynamic optimization of the anticorrosion system.

[0033] The conventional technical solution has the following technical problems: the existing polar plate corrosion prevention adopts an electrochemical protection method with constant current density, which cannot dynamically adjust the current parameters according to the changes of the salt mist concentration and the polar plate temperature in the marine environment, resulting in insufficient protection in a high-salt environment or over-protection in a low-salt environment; the frequency and phase of the pulse current are fixed, and the influence of the polar plate temperature on the effect of the current is not considered, which may lead to a decline in the protection effect due to the mismatch of the current parameters when the polar plate temperature rises sharply; meanwhile, the existing current regulation does not establish an association mechanism with the real-time state of the equipment, and only sets the parameters by experience, which cannot achieve precise protection for different operating conditions.

[0034] Therefore, the central processing module calculates the pulse current density of the polar plate by the following formula: ; Among them, is the pulse current density (A / m²), is the reference current density (A / m²), is the salt mist influence coefficient (value range 0.3-0.8), is the real-time salt mist concentration (mg / m³), is the standard salt mist concentration (mg / m³), is the real-time polar plate temperature (℃), is the reference polar plate temperature (℃), is the temperature reference value (take 298K), is the pulse frequency (Hz), is the time (s), is the initial phase angle (rad).

[0035] Among them, represents the real-time dynamically adjusted polar plate pulse current density, which is the core parameter for realizing the electrochemical corrosion prevention of the polar plate. The reference current density is set based on the corrosion prevention requirements of the AEM hydrogen production equipment in the standard marine environment (stable salt mist concentration and constant polar plate temperature), and is used as the basic value for dynamic adjustment.

[0036] The salt mist influence coefficient (0.3-0.8) is used to quantify the influence weight of the salt mist concentration on the current density, and the value is optimized according to the different metal materials of the equipment. The higher the metal activity, the larger the value.

[0037] The ratio of the real-time salt mist concentration to the standard salt mist concentration directly reflects the intensity of the current salt mist corrosion. When the ratio is greater than 1, it means that the corrosion risk is rising, and the current density needs to be increased.

[0038] The temperature correction term is The real-time temperature of the plate, The reference temperature, The standard reference temperature (298K).

[0039] When the plate temperature is higher than the reference value, the exponential term decreases due to the positive molecule, reducing the increase of the salt mist concentration on the current density, avoiding the hydrogen embrittlement of the plate caused by over-protection at high temperature; when the temperature is lower than the reference value, the exponential term increases, strengthening the regulation effect of the salt mist concentration on the current, ensuring the protection strength in low-temperature high-salt environment.

[0040] The sine function is the pulse characteristic term, The pulse frequency, The time, The initial phase angle. This function makes the current present periodic alternating characteristics, which can reduce the generation of passivation film on the plate surface compared with constant current, and through the cooperation of frequency and phase, the current waveform is matched with the plate surface charge distribution, avoiding local current concentration leading to stray corrosion. The overall formula realizes the dynamic and accurate regulation of the plate corrosion protection current in marine environment by combining the linear effect of salt mist concentration and the nonlinear correction of temperature with the pulse characteristics.

[0041] This scheme solves the problems of poor adaptability and unreasonable parameter setting of traditional constant current protection by establishing a pulse current density calculation model that integrates salt mist concentration and plate temperature, realizing the dynamic and accurate electrochemical protection of the plate; at the same time, the introduction of temperature exponential term and salt mist concentration correction factor makes the current parameters be able to adjust in real time with the change of corrosion conditions, improving the pertinence of protection effect.

[0042] It is worth mentioning that the ratio term of salt mist concentration in the formula is used to quantify the difference between the actual salt mist environment and the standard environment, and through The coefficient adjusts the influence of salt mist concentration on current density, ensuring that sufficient protection current is provided in high-salt mist environment; the temperature exponential term considers the weakening effect of plate temperature rise on electrochemical protection effect, when the plate temperature is higher than the reference value, the exponential decay reduces the increase of current density, avoiding over-protection caused by temperature rise; the sine function term introduces pulse characteristics, through the setting of frequency and initial phase angle , the current presents periodic change, reducing the passivation phenomenon on the plate surface caused by constant current.

[0043] The technical effects achieved by the above embodiments include that the dynamic pulse current density can be adjusted in real time according to the change of the salt spray concentration, the current density is automatically increased when the salt spray concentration is increased, the corrosion prevention effect is enhanced, the current density is correspondingly reduced when the salt spray concentration is reduced, and energy waste is avoided; the temperature correction mechanism ensures that the current parameters are always in the optimal state when the temperature of the pole plate fluctuates, maintains stable electrochemical protection effect, and reduces the risk of protection failure caused by temperature change; the introduction of the pulse characteristic reduces the probability of passivation film generated on the surface of the pole plate, improves the utilization efficiency of the current, and prolongs the service life of the pole plate; the overall formula model realizes the accurate association of the environmental parameters, the equipment state and the protection current, makes the pole plate corrosion prevention strategy more scientific and adaptive, and effectively improves the corrosion resistance of the AEM hydrogen production equipment in the marine environment.

[0044] The traditional technical solution has the following technical problems: in the existing sealing piece corrosion prevention, the ultrasonic vibration frequency usually adopts a fixed value, without considering the influence of the difference between seawater splashing and air medium on the vibration effect, resulting in that the vibration energy transmission efficiency is reduced when seawater splashing is frequent, and the salt mist attached to the surface of the sealing piece cannot be effectively removed; the working voltage of the membrane electrode assembly is not associated, when the voltage fluctuates, the stress state of the sealing piece changes but the vibration parameters are not adjusted accordingly, which easily leads to the aggravation of the sealing piece wear caused by insufficient or excessive vibration; at the same time, the vibration frequency regulation lacks a scientific calculation model, and only relies on the experience value setting, which is difficult to adapt to the complex changes of the marine environment.

[0045] Therefore, the central processing module calculates the ultrasonic vibration frequency of the sealing piece by the following formula: ; Wherein, is the ultrasonic vibration frequency (kHz), is the reference vibration frequency (kHz), is the seawater density (kg / m³), is the seawater splashing speed (m / s), is the real-time seawater splashing frequency (times / min), is the air density (kg / m³), is the air flow rate (m / s), is the reference splashing frequency (times / min), is the voltage influence coefficient (value range 0.1-0.3), is the real-time working voltage of the membrane electrode assembly (V), is the reference working voltage of the membrane electrode assembly (V).

[0046] Wherein, is the real-time ultrasonic vibration frequency of the sealing piece, which is the core parameter for removing the salt mist on the surface of the sealing piece. is the reference vibration frequency, which is set based on the sealing clean requirement in the standard air environment. The fraction in the square root is the medium characteristic correction term, is the seawater density, is the air density, is the seawater splash velocity, is the air flow velocity, is the real-time seawater splash frequency, is the reference splash frequency. The fraction in the square root comprehensively quantifies the influence of seawater and air media on ultrasonic vibration energy transmission through the ratio of density, velocity square, and splash frequency: the product of seawater density and splash velocity reflects the impact kinetic energy, and the air flow velocity represents the environmental airflow interference. When the seawater splashes frequently increases), the value in the square root increases, which raises the vibration frequency, ensuring that ultrasonic energy can still be effectively transmitted in the high-density seawater medium, avoiding salt mist attachment; in a calm air environment, the value is close to 1, and the frequency is maintained at the reference value to reduce energy waste.

[0047] is the membrane electrode voltage correction term, is the voltage influence coefficient (0.1-0.3), is the real-time operating voltage, is the reference voltage. When the membrane electrode voltage increases, the sealing is subjected to increased stress due to the pressure change in the electrolytic cell, and the salt mist at the gap is more likely to be retained. At this time, the correction term increases the frequency, enhancing the cleaning strength of ultrasonic vibration; when the voltage decreases, the frequency is correspondingly adjusted downward to avoid excessive vibration leading to aging of the sealing. The overall formula realizes the dynamic adaptation of the sealing ultrasonic protection through the coupling of medium characteristics and equipment operating state, solving the problem of insufficient cleaning efficiency of fixed frequency in complex marine environments.

[0048] This scheme solves the problems of poor adaptability and low energy transmission efficiency of traditional fixed frequency vibration by establishing an ultrasonic vibration frequency calculation model that integrates medium characteristics and equipment voltage parameters, realizing dynamic optimization of sealing ultrasonic protection; at the same time, the medium difference factors of seawater and air and the voltage correction term are introduced, enabling the vibration frequency to accurately match the real-time working condition and improving the salt mist removal effect on the sealing surface.

[0049] It is worth mentioning that the formula term, which quantifies the influence of different media environments on vibration energy through the ratio of seawater and air density, velocity, and splash frequency, ensures that the frequency is automatically increased when the seawater splashes to enhance energy transmission; The item is associated with the voltage change of the membrane electrode. When the voltage rises, the stress on the seal increases, and the vibration frequency is correspondingly increased to enhance the cleaning ability, thereby avoiding the aggravation of corrosion caused by salt mist residues. The technical effects achieved by the above embodiments include: the dynamically adjusted ultrasonic vibration frequency can adapt to the complex environment of seawater splashing and air alternation, ensuring that the salt mist on the surface of the seal is promptly removed and reducing the seal failure caused by salt particle deposition; the introduction of the medium difference factor improves the utilization efficiency of vibration energy, avoiding the problem of energy waste or deficiency of fixed frequency in different media; the association mechanism with the voltage of the membrane electrode matches the vibration parameters with the stress state of the seal, reduces the wear of the seal caused by improper vibration, prolongs the service life of the seal, and overall improves the corrosion resistance and reliability of the seal system of the AEM hydrogen production equipment.

[0050] The traditional technical solution has the following technical problems: the existing nano coating repair rate mostly uses a fixed value, without considering the influence of internal pressure change of the electrolytic cell on coating deposition. When the pressure rises, the coating density decreases, but the repair rate is not adjusted accordingly, resulting in poor repair effect. The change of the surface potential of the metal connecting piece is not associated. When the potential is abnormal, corrosion cannot be timely suppressed by increasing the repair rate, and the coating repair may lag behind the corrosion process. At the same time, the influence of light intensity on the curing of the nano coating is ignored. When the light intensity is insufficient, the original repair rate is maintained, resulting in a decrease in the bonding force of the coating and affecting the corrosion resistance.

[0051] Therefore, the central processing module calculates the repair rate of the nano coating by the following formula: ; Wherein, is the repair rate of the nano coating (μm / h), is the reference repair rate (μm / h), is the real-time internal pressure of the electrolytic cell (MPa), is the reference internal pressure of the electrolytic cell (MPa), is the pressure sensitivity index (value range 0.5-1.2), is the potential influence coefficient (value range 1.5-3.0), is the difference between the surface potential of the metal connecting piece and the reference potential (mV), is the standard electrode potential (mV), is the light influence coefficient (value range 0.05-0.2), is the real-time light intensity (μmol / m²·s), is the reference light intensity (μmol / m²·s).

[0052] Wherein, is the repair rate of the nano coating (μm / h), is the reference repair rate (μm / h), P is the real-time internal pressure of the electrolytic cell (MPa), P is the reference internal pressure of the electrolytic cell (MPa), P is the pressure sensitivity index (value range 0.5-1.2), P is the potential influence coefficient (value range 1.5-3.0), P is the difference between the surface potential of the metal connector and the reference potential (mV), P is the standard electrode potential (mV), P is the illumination influence coefficient (value range 0.05-0.2), P is the real-time illumination intensity (μmol / m²·s), P is the reference illumination intensity (μmol / m²·s).1. The system according to claim 1, wherein the pulse power regulation unit comprises an IGBT full-bridge inverter circuit, an LC filter module, and a current feedback sensor, wherein the switching frequency of the IGBT full-bridge inverter circuit is 20 kHz-50 kHz, the cutoff frequency of the LC filter module is 1 kHz, the measurement range of the current feedback sensor is 0-50 A, and the feedback delay time is ≤10 μs.1. The system according to claim 1, wherein the ultrasonic generating device comprises a piezoelectric ceramic transducer, an amplitude horn, and an amplitude regulator, wherein the resonant frequency of the piezoelectric ceramic transducer is 20 kHz-40 kHz, the amplification coefficient of the amplitude horn is 1.5-3.0, and the adjustment accuracy of the amplitude regulator is ±0.1 μm.1. The system according to claim 1, wherein the plasma spraying equipment comprises a plasma spraying gun, a powder feeder, and a displacement platform, wherein the arc voltage range of the plasma spraying gun is 60 V-120 V, the powder feeding rate of the powder feeder is 5 g / min-50 g / min, the positioning accuracy of the displacement platform is ±0.01 mm, and the spraying angle can be continuously adjusted within the range of 30°-90°.

[0053] This scheme solves the problems of poor adaptability and unstable repair effect of traditional fixed repair rate by constructing a repair rate model that fuses pressure, potential, and illumination factors, achieving the precision and dynamics of nano-coating repair. At the same time, the introduction of nonlinear correction terms of each factor enables the repair rate to be optimized in real time according to the equipment state and environmental conditions, improving the pertinence and effectiveness of coating repair.

[0054] It is worth mentioning that, The term realizes the nonlinear improvement of the repair rate when the pressure rises through the power function relationship of the pressure ratio, to compensate for the negative impact of pressure on coating density; The term quickly increases the repair rate through an exponential function when the potential difference increases to address metal potential abnormalities and timely contain corrosion spread; Item associated with light intensity, appropriate to improve the repair rate to take advantage of good curing conditions, to ensure the coating adhesion.

[0055] The technical effects achieved by the above embodiments include: multi-factor coupled repair rate adjustment enables the nano coating to adapt to electrolytic cell pressure fluctuations, and still maintains good denseness and corrosion resistance when the pressure changes; the metal potential correlation mechanism realizes rapid response to corrosion risk, avoiding corrosion intensification caused by repair lag; the synergy with light intensity ensures the curing quality of the coating under different light conditions, improves the adhesion of the coating and the substrate, and overall improves the timeliness and effectiveness of the nano coating repair, and enhances the corrosion resistance of the metal parts of the AEM hydrogen production equipment.

[0056] The traditional technical solutions have the following technical problems: the switching frequency of the inverter circuit of the existing pulse power regulation unit is fixed, which cannot be adjusted according to the change of the required pulse current density of the plate, resulting in distortion of the current waveform and affecting the electrochemical protection effect; the cutoff frequency of the filter module is not reasonable, and high-frequency interference cannot be effectively filtered out, resulting in too high harmonic component in the output current and aggravating stray corrosion of the plate; at the same time, the current feedback delay time is too long, which cannot track the current change in real time, resulting in a decrease in the regulation accuracy and making it difficult to achieve precise control of the pulse current density.

[0057] Therefore, the pulse power regulation unit comprises an IGBT full-bridge inverter circuit, an LC filter module and a current feedback sensor, wherein the switching frequency of the IGBT full-bridge inverter circuit is 20-50 kHz, the cutoff frequency of the LC filter module is 1 kHz, and the measurement range of the current feedback sensor is 0-50 A, and the feedback delay time is ≤10 μs. This scheme solves the problems of poor output waveform and low regulation accuracy of the traditional pulse power by configuring an IGBT inverter circuit with adjustable switching frequency, a special LC filter module and a high-speed current feedback sensor, and realizes precise control of the plate pulse current; at the same time, a reasonable switching frequency range, cutoff frequency and feedback delay are set according to the characteristics of the pulse current, ensuring the stability and accuracy of the output current. It is worth mentioning that the switching frequency range of 20-50 kHz of the IGBT full-bridge inverter circuit can be dynamically adjusted according to the calculated pulse current density, ensuring the integrity of the output waveform under different current parameters and reducing waveform distortion; the cutoff frequency of 1 kHz of the LC filter module can effectively filter out the high-frequency harmonics in the current, avoiding stray corrosion of the plate caused by harmonic components, while retaining the effective components of the pulse current; the measurement range of 0-50 A of the current feedback sensor covers the current range required by the plate of the AEM hydrogen production equipment, and the feedback delay time of ≤10 μs ensures real-time tracking of the current change, providing timely feedback signals for closed-loop regulation.

[0058] The technical effects achieved by the above embodiments include: the IGBT inverter circuit with adjustable switching frequency enables the pulse power supply to adapt to the output requirements of different pulse current densities, ensures that the current waveform meets the design requirements, and improves the stability of electrochemical protection; the special LC filter module reduces harmonic interference in the current and reduces the risk of local corrosion of the plate caused by stray current; the high-speed current feedback sensor realizes real-time monitoring and rapid feedback of the output current, improves the adjustment accuracy of the pulse current density, makes the actual output highly consistent with the calculated value, and overall improves the performance of the pulse power supply adjustment unit, providing reliable power support for accurate electrochemical corrosion protection of the plate.

[0059] The traditional technical solution has the following technical problems: the piezoelectric ceramic transducer of the existing ultrasonic generating device has a fixed resonance frequency, which cannot match the dynamic ultrasonic vibration frequency change required by the sealing element, resulting in low vibration energy conversion efficiency and ineffective removal of salt mist on the surface of the sealing element; the amplification coefficient of the amplitude transformer cannot be adjusted, and when different amplitudes are required, the amplitude transformer must be replaced, which is cumbersome and has poor adaptability; at the same time, the amplitude regulator has insufficient adjustment accuracy, making it difficult to accurately control the small amplitude, resulting in uneven vibration intensity on different areas of the sealing element surface, affecting the consistency of the salt mist removal effect.

[0060] Therefore, the ultrasonic generating device comprises a piezoelectric ceramic transducer, an amplitude transformer, and an amplitude regulator, wherein the resonance frequency of the piezoelectric ceramic transducer is 20-40 kHz, the amplification coefficient of the amplitude transformer is 1.5-3.0, and the adjustment accuracy of the amplitude regulator is ±0.1 μm. This scheme solves the problems of low energy conversion efficiency, poor adaptability, and insufficient adjustment accuracy of traditional ultrasonic generating devices by configuring a piezoelectric ceramic transducer with a wide resonance frequency range, an amplitude transformer with adjustable amplification coefficient, and a high-precision amplitude regulator, and realizes accurate control of ultrasonic vibration of the sealing element. At the same time, a reasonable parameter range is set according to the corrosion prevention requirements of the sealing element to ensure effective transmission and uniform distribution of vibration energy.

[0061] It is worth mentioning that the resonance frequency range of the piezoelectric ceramic transducer is 20-40 kHz, which can match different ultrasonic vibration frequencies calculated by the central processing module, ensuring that it is in a resonant state under various working conditions and improving the energy conversion efficiency; the amplification coefficient range of the amplitude transformer is 1.5-3.0, which can be adjusted according to the required amplitude of the sealing element, without the need to replace parts to adapt to different vibration intensity requirements; the adjustment accuracy of the amplitude regulator is ±0.1 μm, which can realize accurate control of the small amplitude, ensure uniform vibration intensity on the surface of the sealing element, and avoid salt mist residue caused by insufficient local vibration.

[0062] The technical effects achieved by the above embodiment include: the piezoelectric ceramic transducer with wide frequency resonance improves the utilization efficiency of ultrasonic energy, ensuring that sufficient vibration energy can be provided for the seal under different vibration frequencies; the amplitude lever with adjustable amplification coefficient enhances the adaptability of the device, and the amplitude can be adjusted according to the material and size of the seal to avoid damage to the seal caused by excessive amplitude or incomplete cleaning caused by too small amplitude; the high-precision amplitude adjuster ensures the uniformity of the vibration on the surface of the seal, improves the consistency of the salt mist removal effect, enhances the anti-corrosion support capability of the ultrasonic generator for the seal as a whole, and prolongs the service life of the seal.

[0063] The traditional technical solution has the following technical problems: the existing plasma spraying equipment has a narrow arc voltage range of the plasma torch, which cannot adjust the spraying energy according to the change of the nano coating repair rate, resulting in low coating deposition efficiency and difficulty in meeting the rapid repair demand; the powder feeder has a small powder feeding rate adjustment range, which is not matched with the repair rate, resulting in too much powder feeding to cause coating accumulation or not enough powder feeding to cause incomplete repair; at the same time, the displacement platform has low positioning accuracy and fixed spraying angle, which cannot realize uniform spraying on the complex surface of the equipment, resulting in uneven coating thickness and affecting the corrosion protection effect.

[0064] Therefore, the plasma spraying equipment comprises a plasma torch, a powder feeder and a displacement platform, wherein the arc voltage range of the plasma torch is 60V-120V, the powder feeding rate of the powder feeder is 5g / min-50g / min, the positioning accuracy of the displacement platform is ±0.01mm, and the spraying angle can be continuously adjusted within the range of 30°-90°.

[0065] This scheme solves the problems of low deposition efficiency, poor adaptability and uneven spraying of the traditional plasma spraying equipment by configuring a plasma torch with a wide arc voltage range, a powder feeder with a wide range and a high-precision adjustable displacement platform, realizes efficient and accurate repair of the nano coating, and sets reasonable parameter ranges for different repair requirements to ensure the consistency of the coating quality and repair effect.

[0066] It is worth mentioning that the arc voltage range of the plasma torch is 60V-120V, which can adjust the spraying energy according to the high or low of the nano coating repair rate, increase the kinetic energy of the molten particles when the repair rate is high to ensure the coating density, the powder feeding rate range of the powder feeder is 5g / min-50g / min, which can match different repair rate requirements to avoid coating defects caused by mismatching of powder feeding and deposition, and the positioning accuracy of the displacement platform is ±0.01mm and the spraying angle adjustment range is 30°-90°, which can adapt to the spraying demand of the complex surface of the equipment to ensure that a uniform coating can be formed at the corner, edge and other parts.

[0067] The technical effects achieved by the above embodiments include: the wide-arc pressure plasma torch improves the deposition efficiency and quality of the nano coating, and can maintain the compactness and bonding force of the coating at different repair rates; the wide-range powder feeder ensures the matching of the powder feeding amount and the repair rate, reduces the coating defects, and improves the integrity of the repair; the high-precision adjustable displacement platform realizes uniform spraying of the complex surface of the equipment, avoids the problem of local coating being too thin or too thick, and overall improves the repair quality and efficiency of the nano coating, and enhances the long-term corrosion resistance of the metal parts of the AEM hydrogen production equipment.

[0068] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms. Any person skilled in the art can use the disclosed technical content to make changes or modifications to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical solution content of the present application still falls within the protection scope of the technical solution of the present application.

Claims

1. A corrosion parameter enhancement system for AEM hydrogen production equipment adapted to marine environments, characterized by: It includes environmental parameter monitoring module, equipment status perception module, central processing module and anti-corrosion execution module; The environmental parameter monitoring module is configured to collect salt spray concentration, atmospheric humidity, seawater splash frequency and light intensity in the marine environment in real time; The equipment status sensing module is configured to obtain the plate temperature of the AEM hydrogen production equipment, the operating voltage of the membrane electrode assembly, the internal pressure of the electrolyzer, and the surface potential of the metal connector; The central processing module is in communication with the environmental parameter monitoring module and the equipment status perception module respectively, and is used to generate dynamic anti-corrosion parameter adjustment instructions based on the coupling relationship between the environmental parameters and the equipment status parameters. The dynamic anti-corrosion parameter adjustment instructions include pulse current density for the electrode plate, ultrasonic vibration frequency for the seal, and nano-coating repair rate for the metal surface; The anti-corrosion execution module responds to the dynamic anti-corrosion parameter adjustment instruction, changes the electrochemical protection current of the electrode plate through the pulse power adjustment unit, adjusts the vibration parameters of the seal through the ultrasonic generator, and controls the deposition rate of the nano-coating through the plasma spraying equipment, so as to achieve synergistic enhancement of the multi-dimensional anti-corrosion parameters of the AEM hydrogen production equipment in the marine environment.

2. The anti-corrosion parameter enhancement system for AEM hydrogen production equipment adapted to marine environment according to claim 1 is characterized in that: The environmental parameter monitoring module includes a salt spray concentration sensor, an integrated temperature and humidity sensor, a piezoelectric splash counter, and a photosynthetically active radiation sensor. The sampling frequency of the salt spray concentration sensor is 1 Hz, the measurement accuracy of the integrated temperature and humidity sensor is ±2% RH / ±0.5°C, the response threshold of the piezoelectric splash counter is set to 0.1 MPa impact pressure, and the measurement range of the photosynthetically active radiation sensor is 0-2000 μmol / m²·s.

3. The anti-corrosion parameter enhancement system for AEM hydrogen production equipment adapted to marine environment according to claim 1 is characterized in that: The device status perception module includes an infrared temperature sensor, a high-frequency voltage probe, a piezoresistive pressure transmitter and a reference electrode. The measurement distance of the infrared temperature sensor is 0.5-5m, the bandwidth of the high-frequency voltage probe is 1MHz-1GHz, the range of the piezoresistive pressure transmitter is 0-10MPa, and the reference electrode is a silver / silver chloride electrode with a potential stability of ≤±1mV / 24h.

4. The anti-corrosion parameter enhancement system for AEM hydrogen production equipment adapted to marine environment according to claim 1 is characterized in that: The central processing module includes a data preprocessing unit, a coupling analysis unit and an instruction generation unit. The data preprocessing unit performs filtering and denoising on the collected environmental parameters and equipment status parameters. The coupling analysis unit uses an improved random forest algorithm to establish a nonlinear mapping relationship between parameters. The instruction generation unit outputs anti-corrosion parameter adjustment instructions with time series characteristics based on the mapping relationship.

5. The anti-corrosion parameter enhancement system for AEM hydrogen production equipment adapted to marine environment according to claim 1 is characterized in that: The central processing module calculates the pulse current density of the plate using the following formula: ； in, is the pulse current density (A / m²), is the reference current density (A / m²), is the salt spray influence coefficient (value range 0.3-0.8), is the real-time salt spray concentration (mg / m³), is the standard salt spray concentration (mg / m³), is the real-time plate temperature (°C), is the reference plate temperature (°C), is the temperature reference value (take 298K), is the pulse frequency (Hz), is time (s), is the initial phase angle (rad).

6. The anti-corrosion parameter enhancement system for AEM hydrogen production equipment adapted to marine environment according to claim 1 is characterized in that: The central processing module calculates the ultrasonic vibration frequency of the seal using the following formula: ； in, is the ultrasonic vibration frequency (kHz), is the reference vibration frequency (kHz), is the density of seawater (kg / m³), is the seawater splash velocity (m / s), is the real-time seawater splash frequency (times / min), is the air density (kg / m³), is the air velocity (m / s), is the reference splash frequency (times / min), is the voltage influence coefficient (value range 0.1-0.3), is the real-time operating voltage of the membrane electrode assembly (V), is the reference operating voltage of the membrane electrode assembly (V).

7. The anti-corrosion parameter enhancement system for AEM hydrogen production equipment adapted to marine environment according to claim 1 is characterized in that: The central processing module calculates the repair rate of the nanocoating using the following formula: ； in, is the nanocoating repair rate (μm / h), is the benchmark repair rate (μm / h), is the real-time internal pressure of the electrolytic cell (MPa), is the reference internal pressure of the electrolytic cell (MPa), is the pressure sensitivity index (range 0.5-1.2), is the potential influence coefficient (value range 1.5-3.0), is the difference between the surface potential of the metal connector and the reference potential (mV), is the standard electrode potential (mV), is the illumination influence coefficient (value range 0.05-0.2), is the real-time light intensity (μmol / m²·s), is the reference light intensity (μmol / m²·s).

8. The anti-corrosion parameter enhancement system for AEM hydrogen production equipment adapted to marine environment according to claim 1 is characterized in that: The pulse power supply regulation unit includes an IGBT full-bridge inverter circuit, an LC filter module and a current feedback sensor, wherein the switching frequency of the IGBT full-bridge inverter circuit is 20kHz-50kHz, the cutoff frequency of the LC filter module is 1kHz, the measurement range of the current feedback sensor is 0-50A, and the feedback delay time is ≤10μs.

9. The anti-corrosion parameter enhancement system for AEM hydrogen production equipment adapted to marine environment according to claim 1 is characterized in that: The ultrasonic generating device includes a piezoelectric ceramic transducer, a horn and an amplitude regulator, wherein the resonant frequency of the piezoelectric ceramic transducer is 20kHz-40kHz, the amplification factor of the horn is 1.5-3.0, and the adjustment accuracy of the amplitude regulator is ±0.1μm.

10. The anti-corrosion parameter enhancement system for AEM hydrogen production equipment adapted to marine environment according to claim 1 is characterized in that: The plasma spraying equipment includes a plasma spray gun, a powder feeder and a displacement platform. The arc voltage range of the plasma spray gun is 60V-120V, the powder feeding rate of the powder feeder is 5g / min-50g / min, the positioning accuracy of the displacement platform is ±0.01mm, and the spraying angle can be continuously adjusted within the range of 30°-90°.

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