CN118639276A - Operation control system of water electrolysis hydrogen production, storage and supply system - Google Patents

Abstract

The present invention relates to the field of hydrogen production control technology, specifically to an operation control system of a hydrogen production, storage and supply system for electrolysis of water, including: an electrolytic cell monitoring module, used to divide a number of electrolytic cells into a number of regions and screen out unqualified efficiency regions; a first acquisition module, used to receive regional electrolytic cell image acquisition instructions, and perform image acquisition on the electrolytic cells in each unqualified efficiency region; a second acquisition module, used to receive regional sensor acquisition instructions, and construct a first quality index; an image recognition and analysis module, used to construct a second quality index; a control module, matching a corresponding regional control scheme for each region, and regulating each region. The present invention can achieve fine monitoring of different regions or a single electrolytic cell, timely discover and handle local anomalies, help optimize reaction conditions, improve hydrogen production efficiency, and can achieve real-time adjustment of key parameters in the electrolysis process, improving the stability and reliability of the system.

Description

Operation control system of water electrolysis hydrogen production, storage and supply system

Technical Field

The present invention relates to the technical field of hydrogen production control, and in particular to an operation control system of a water electrolysis hydrogen production, storage and supply system.

Background Art

Hydrogen production by water electrolysis is an environmentally friendly and clean energy production method. It decomposes water into hydrogen and oxygen through electrolysis without producing any harmful gases or emissions. It uses water as a raw material, has broad renewability, can effectively utilize renewable resources, and achieve sustainable use of energy.

In the process of controlling hydrogen production by electrolysis of water, traditional control systems usually only monitor the overall performance of the electrolytic cell, and lack detailed monitoring of different areas or individual electrolytic cells. In particular, there is a lack of real-time monitoring and analysis of the electrolytic cell, which makes it impossible to detect and deal with local anomalies in a timely manner, affecting the overall stability and efficiency of the control system. The temperature, pressure and stirring rate parameters in the electrolysis process have a significant impact on the efficiency of hydrogen production, especially when gas bubbles exist in the electrolyte, which will lead to a reduction in the effective surface area of the electrolysis reaction, thereby reducing the reaction rate and efficiency, and affecting the yield of hydrogen production.

Summary of the invention

In view of the deficiencies in the prior art, the present invention provides an operation control system for a water electrolysis hydrogen production, storage and supply system, which can achieve precise monitoring of different areas or a single electrolytic cell, timely detect and handle local anomalies, help optimize reaction conditions, improve hydrogen production efficiency, and achieve real-time adjustment of key parameters in the electrolysis process, thereby improving the stability and reliability of the system.

To achieve the above objectives, the present invention is implemented through the following technical solutions: an operation control system for a water electrolysis hydrogen production, storage and supply system, comprising:

The electrolytic cell monitoring module is used to divide several electrolytic cells into several areas, construct a hydrogen production efficiency index xLz based on the electrolytic cell power data in each area, and use this to screen out unqualified efficiency areas from each area. If the ratio of unqualified efficiency areas exceeds expectations, a regional electrolytic cell image acquisition instruction and a regional sensor acquisition instruction are issued to the unqualified efficiency areas;

The first acquisition module is used to receive the regional electrolytic cell image acquisition instruction, acquire images of the electrolytic cells in each unqualified efficiency area, and after pre-processing the acquired regional electrolytic cell images, summarize and construct a regional image set;

The second acquisition module is used to receive the regional sensor acquisition instruction, acquire the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell in each area through the second sensor acquisition, and construct the first quality index ZL ₁ ;

The image recognition and analysis module constructs a second quality index ZL ₂ by identifying the distance J between the electrodes of the electrolytic cell, the surface defect area X of the electrodes of the electrolytic cell, the battery surface area L, and the distribution of gas bubbles in the electrolytic cell in the acquired regional image set;

The control module evaluates the first quality index ZL ₁ and the second quality index ZL ₂ respectively, obtains corresponding difference features, matches corresponding regional control schemes for each region according to the difference features, and constructs a control priority Yx _J to control each region.

Preferably, the electrolytic cell monitoring module includes a three-dimensional model building unit, a deployment unit and a power collection unit;

Establish a 3D model unit to collect design drawings and technical parameters of the production line for hydrogen production by water electrolysis, hydrogen storage and hydrogen supply; establish a 3D model of the production line based on the design drawings and technical parameters through AutoCAD, SolidWorks, Blender or SketchUp 3D modeling software. The 3D model of the production line includes electrolytic cells, hydrogen storage equipment, hydrogen supply equipment, pipelines, valves, connectors and brackets; after the 3D model of the production line is established, export it to 3D STL, OBJ and STEP formats;

The deployment unit is used to divide a plurality of electrolytic cells into p regions in the three-dimensional model of the production line, and mark the p regions according to QY ₁ , QY ₂ , QY ₃ , ..., QY _p ;

Installing a first sensor in each zone;

The power collection unit is used to collect and obtain the electrolytic cell power data through the first sensor;

The first sensor includes a gas sensor, a current sensor, a flow sensor and a time sensor;

The actual measured amount of hydrogen produced by electrolysis Qcl is obtained by measuring with a gas sensor;

The electrolytic cell current Q in the electrolytic cell process is measured by a current sensor;

The static liquid flow Jtyl is measured and obtained by using a flow sensor in the electrolyte flow pipeline;

The static time Jtsj is obtained by measuring the time sensor.

Preferably, the electrolytic cell monitoring module includes an efficiency calculation unit and a screening unit;

The efficiency calculation unit is used to collect the electrolytic cell current Q, static liquid flow Jtyl and static time Jtsj in the electrolytic cell process, and after dimensionless processing, the hydrogen production efficiency index xLz is calculated by the following formula:

;

;

In the formula, Qcl represents the actual measured hydrogen production by electrolysis, and Qth represents the theoretical hydrogen production, which is the theoretical amount of hydrogen produced at a given current calculated based on Faraday's law and the reaction equation;

Jtsj represents the static time, which is the duration of the electrolysis process. The static liquid flow Jtyl represents the flow rate of the electrolyte in the electrolytic cell. M represents the molar mass of the gas. The inverse of the molar mass is called the molar volume, which is used to calculate the gas volume. Here, it is the molar mass of hydrogen produced. The charge amount through electrolysis is calculated based on the current and electrolysis time. The charge number is the number of electrons. It is set to 1, indicating that each electron corresponds to one charge. The molar number of hydrogen is obtained based on the molar ratio in the chemical equation of the electrolysis product.

The screening unit is used to compare the hydrogen production efficiency index xLz with the efficiency threshold Y. For the electrolytic cell region where the hydrogen production efficiency index xLz < the efficiency threshold Y, it indicates that the hydrogen production efficiency is unqualified; for the electrolytic cell region where the hydrogen production efficiency index xLz ≥ the efficiency threshold Y, it indicates that the hydrogen production efficiency is qualified.

The areas where the hydrogen production efficiency index xLz is lower than the efficiency threshold Y are counted. If the ratio exceeds 30% in the total electrolytic cell area, it means that the ratio is exceeded. It is necessary to further analyze the reasons and maintain the electrolytic cells with unqualified hydrogen production efficiency, and issue regional electrolytic cell image acquisition instructions and regional sensor acquisition instructions. The ratio can be adjusted and set by the administrator.

Preferably, the first acquisition module specifically acquires the following steps:

S1. Once a regional electrolytic cell image acquisition instruction is received, first confirm the regional number or coordinates of each unqualified efficiency region;

S2, then using an image acquisition device to take high-resolution photos of the electrolytic cells in each unqualified efficiency area to obtain regional electrolytic cell images;

S3. After preprocessing the collected regional electrolytic cell images including denoising, contrast enhancement and brightness adjustment, a regional image set is constructed by aggregation.

Preferably, the second acquisition module includes a sensor acquisition unit and a first calculation unit;

The sensor acquisition unit is used to collect the parameters of the electrolytic cell in the unqualified efficiency area. After the regional electrolytic cell image acquisition instruction is completed, the second sensor is used to acquire the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell in each area;

The second sensor includes a temperature sensor, a pressure sensor and a magnetic fluid sensor;

The temperature Jt in the electrolytic cell is directly measured by a temperature sensor;

Pressure Jy represents the pressure exerted by the gas inside the electrolytic cell on the container wall, which is measured by a pressure sensor;

The stirring rate Js is obtained by collecting the movement of the magnetic stirring bar in the electrolytic cell through a magnetic fluid sensor;

The first calculation unit is used to collect the temperature Jt, pressure Jy and stirring rate Js in the same electrolytic cell in the same area and perform linear normalization processing, and map the corresponding data values in the interval [0, 1], and then generate the first quality index ZL ₁ according to the following formula:

;

in, To measure the average value of the electrolytic cell temperature in each monitoring period, It is the average value of the measured pressure during the monitoring period; is the mean value of the stirring rate measured during the monitoring period; α, β and γ are weight coefficients: 0≤β≤1, 0≤α≤1, 0≤γ≤1, and α+β+γ=1, where i=1, 2, ..., n, n is the number in the monitoring period and is a positive integer greater than 1.

Preferably, the image recognition and analysis module includes a feature extraction unit and a second calculation unit;

The feature extraction unit is used to extract relevant features from each electrolytic cell image of the regional image set;

Relevant features include:

Electrolytic cell electrode spacing J: The distance between electrodes is measured by image processing technology;

Electrolytic cell electrode surface defect area X: Identify cracks, oxidation and fouling features on the electrode surface and use processing algorithms to monitor the defect area on the electrode surface;

Battery surface area L: Monitor the battery boundary and calculate the area through image segmentation technology;

Gas foam distribution in the electrolytic cell: The gas foam size c and quantity SL of the electrolytic cell in the image are monitored by image analysis technology, and the gas foam distribution density Md is calculated by the following formula:

;

The second calculation unit is used to extract the distance between the electrodes of the electrolytic cell J, the surface defect area of the electrodes of the electrolytic cell X, the battery surface area L and the gas foam distribution density Md. After dimensionless processing, the second quality index ZL ₂ is generated by the following formula:

;

In the formula, represents the nonlinear effect of gas foam distribution density, and divided by In order to normalize it to the range of [0, 1], the meaning of the formula is that various parameters affecting the quality of the circulation pool are taken into account. The electrolytic cell electrode spacing J and the electrolytic cell electrode surface defect area X will affect the efficiency of the continuous reaction, while the gas bubble distribution density MD affects the gas release rate and the stability of the continuous process.

Preferably, the control module comprises a first evaluation unit and a second evaluation unit;

The first evaluation unit is used to compare the first quality index ZL ₁ with the first threshold Y ₁ to obtain a first evaluation result, including:

When the first quality index ZL ₁ > the first threshold Y ₁ , it indicates that the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell are abnormal, and a first unqualified label is generated;

When the first quality index ZL ₁ ≤ the first threshold Y ₁ , it means that the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell are within the qualified range, and a first qualified label is generated;

The second evaluation unit is used to compare the second quality index ZL ₂ with the second threshold value Y ₂ to obtain a second evaluation result, including:

When the second quality index ZL ₂ > the second threshold value Y ₂ , it indicates that there are abnormalities in the electrolytic cell electrode spacing J, the electrolytic cell electrode surface defect area X, the battery surface area L and the gas foam distribution density Md, and a second unqualified label is generated;

When the second quality index ZL ₂ ≤ the second threshold value Y ₂ , it means that the electrolytic cell electrode spacing J, the electrolytic cell electrode surface defect area X, the battery surface area L and the gas foam distribution density Md are within the normal range, and a second qualified label is generated.

The first threshold value _Y1 and the second threshold value _Y2 can be set according to actual needs.

Preferably, the control module further includes a difference calculation unit;

The difference calculation unit is used to extract the first quality index ZL ₁ and the second quality index ZL ₂ of the first unqualified label and the second unqualified label, and obtain the first difference D ₁ and the second difference D ₂ by the following formula;

.

Preferably, the control module further comprises a strategy generation unit;

The strategy generation unit is used to associate the first evaluation result and the second evaluation result of each region, and match and generate a corresponding strategy, including:

If the first evaluation result is a first qualified label and the second evaluation result is a second unqualified label, a first strategy is generated, including: maintaining the current operating parameters unchanged, at which time the temperature, pressure and stirring rate in the electrolytic cell are already within the qualified range and do not need to be adjusted; paying special attention to the indicators marked as abnormal in the second evaluation, adjusting the electrolytic cell electrode spacing J, cleaning or repairing the electrode surface, optimizing and increasing the size of the electrolytic cell, and changing the position of the gas release channel to adjust the distribution of gas bubbles;

If the first evaluation result is a first unqualified label and the second evaluation result is a second qualified label, a second strategy is generated to adjust and optimize the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell of the first unqualified label until they are adjusted to within the qualified index range;

If the first evaluation result is the first unqualified label and the second evaluation result is the second unqualified label, a third strategy is generated to adjust the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell, adjust the electrode spacing J of the electrolytic cell, clean or repair the electrode surface, optimize and increase the size of the electrolytic cell, and change the position of the gas release channel to adjust the distribution of gas bubbles.

Preferably, the control module further comprises a priority unit;

The control priority Yx _J of each region is constructed as follows: after linear normalization of the first difference D ₁ and the second difference D ₂ , the corresponding data values are mapped to the interval [0, 1], and then calculated according to the following formula:

;

Wherein, k is the number of first unqualified labels generated by the electrolytic cells in the region within the test duration, i=1, 2, ..., k; is to set the maximum first difference threshold; D _1i is the first difference of the first unqualified label generated by the i-th regional electrolytic cell, D _2i is the second difference of the second unqualified label generated by the regional electrolytic cell; m is the number of unqualified electrolytic cells in the region, i=1, 2, ..., m; is the maximum first difference threshold; ε and δ weight coefficients: 0≤ε≤1, 0≤δ≤1, and ε+δ=1, the weight coefficients are obtained by the hierarchical analysis method;

When in use, according to the control priority Yx _J and the pre-built maintenance plan library (the maintenance plan library is generated based on the previous operating conditions and the maintenance plans taken, as well as the existing maintenance plans obtained by querying and summarizing the known technologies), the corresponding strategy is generated according to the generation strategy unit, and sequential priority control maintenance is performed from large to small according to the control priority Yx _J , and it is prominently marked in the three-dimensional model of the production line.

The present invention has the following beneficial effects:

(1) The present invention can achieve fine monitoring of different areas or a single electrolytic cell through the electrolytic cell monitoring module and the image recognition and analysis module, and timely discover and deal with local anomalies. Such fine monitoring helps to optimize reaction conditions and improve hydrogen production efficiency, thereby achieving sustainable development of energy production.

(2) The present invention utilizes the difference calculation unit and the strategy generation unit in the control module to achieve real-time adjustment of key parameters in the electrolysis process, such as temperature, pressure, and stirring rate. Through this real-time adjustment, the system can respond to changes in a timely manner, improve the stability and reliability of the system, and ensure the continuity of energy production.

(3) The features extracted by the image recognition and analysis module and the calculated second quality index ZL ₂ can reflect the actual situation of the electrolysis reaction, especially the distribution of gas bubbles. Through the generation strategy unit in the control module, the system can adjust the reaction conditions according to the actual situation, optimize the electrolysis process, and improve the efficiency and yield of hydrogen production.

(4) The present invention can determine the control priority according to the situation of each area through the priority unit in the control module, and formulate corresponding maintenance strategies. This helps to deal with abnormal situations in a timely manner, reduce resource waste, and improve the efficiency and sustainability of energy production.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a flow chart of a block diagram of an operation control system of a water electrolysis hydrogen production, storage and supply system according to the present invention.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings.

Embodiment 1, as shown in FIG1 , the operation control system of the hydrogen production, storage and supply system by electrolysis of water comprises:

The electrolytic cell monitoring module is used to divide several electrolytic cells into several areas, construct a hydrogen production efficiency index xLz based on the electrolytic cell power data in each area, and use this to screen out unqualified efficiency areas from each area. If the ratio of unqualified efficiency areas exceeds expectations, a regional electrolytic cell image acquisition instruction and a regional sensor acquisition instruction are issued to the unqualified efficiency areas;

The first acquisition module is used to receive the regional electrolytic cell image acquisition instruction, acquire images of the electrolytic cells in each unqualified efficiency area, and after pre-processing the acquired regional electrolytic cell images, summarize and construct a regional image set;

The second acquisition module is used to receive the regional sensor acquisition instruction, acquire the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell in each area through the second sensor acquisition, and construct the first quality index ZL ₁ ;

The image recognition and analysis module constructs a second quality index ZL ₂ by identifying the distance J between the electrodes of the electrolytic cell, the surface defect area X of the electrodes of the electrolytic cell, the battery surface area L, and the distribution of gas bubbles in the electrolytic cell in the acquired regional image set;

The control module evaluates the first quality index ZL ₁ and the second quality index ZL ₂ respectively, obtains corresponding difference features, matches corresponding regional control schemes for each region according to the difference features, and constructs a control priority Yx _J to control each region.

In this embodiment, by dividing the electrolytic cell into multiple regions and constructing the hydrogen production efficiency index xLz according to the power data of the electrolytic cell in each region, accurate monitoring of each region is achieved. This helps to timely discover and handle local anomalies and improve the stability and efficiency of the system. The system covers an electrolytic cell monitoring module, an image acquisition module, a sensor acquisition module, an image recognition and analysis module, and a control module. Each module works together to achieve comprehensive monitoring and regulation. By evaluating the performance of the electrolytic cell using the first quality index ZL ₁ and the second quality index ZL ₂ , the various parameters and indicators in the electrolysis process can be fully understood, which helps to optimize the hydrogen production efficiency. According to the evaluation results and the difference characteristics, the system can match the corresponding control scheme for each region, and construct the control priority to achieve fine control of each region, which improves the hydrogen production efficiency and the overall performance of the system to a certain extent. No harmful gases or emissions are produced during the electrolysis of water to produce hydrogen, which is in line with the concept of environmentally friendly clean energy production and helps to reduce pollution to the environment.

Example 2, this example is an explanation based on Example 1, as shown in Figure 1, specifically, the electrolytic cell monitoring module includes a three-dimensional model building unit, a deployment unit and a power collection unit;

Establish a 3D model unit to collect design drawings and technical parameters of the production line for hydrogen production by water electrolysis, hydrogen storage and hydrogen supply; establish a 3D model of the production line based on the design drawings and technical parameters through AutoCAD, SolidWorks, Blender or SketchUp 3D modeling software. The 3D model of the production line includes electrolytic cells, hydrogen storage equipment, hydrogen supply equipment, pipelines, valves, connectors and brackets; after the 3D model of the production line is established, export it to 3D STL, OBJ and STEP formats;

The deployment unit is used to divide a plurality of electrolytic cells into p regions in the three-dimensional model of the production line, and mark the p regions according to QY ₁ , QY ₂ , QY ₃ , ..., QY _p ;

Installing a first sensor in each zone;

The power collection unit is used to collect and obtain the electrolytic cell power data through the first sensor;

The first sensor includes a gas sensor, a current sensor, a flow sensor and a time sensor;

The actual measured amount of hydrogen produced by electrolysis Qcl is obtained by measuring with a gas sensor;

The electrolytic cell current Q in the electrolytic cell process is measured by a current sensor;

The static liquid flow Jtyl is measured and obtained by using a flow sensor in the electrolyte flow pipeline;

The static time Jtsj is obtained by measuring the time sensor.

In this embodiment, by establishing a three-dimensional model, dividing the production line into multiple areas, and installing the first sensor in each area, the refined monitoring of the electrolytic cell can be achieved. In this way, the working status of each area can be understood more accurately and abnormal conditions can be discovered in time. The first sensor includes a gas sensor, a current sensor, a flow sensor and a time sensor. A variety of sensors are used to monitor different parameters, which can fully understand the various indicators in the electrolysis process and can fully collect the key data of the electrolytic cell, such as the electrolytic hydrogen production Qcl, the electrolytic cell current Q, the static liquid flow Jtyl and the static time Jtsj, to provide sufficient data support for subsequent monitoring and analysis. By exporting the three-dimensional model to the common STL, OBJ and STEP formats, it is convenient to use and analyze in different software platforms, which improves the availability and flexibility of the data. The use of automated modeling software to establish a three-dimensional model can improve the efficiency and accuracy of modeling, reduce the cost of modeling, and thus improve the cost-effectiveness of the entire monitoring module.

Example 3, this example is an explanation based on Example 1, as shown in FIG1 , specifically, the electrolytic cell monitoring module includes an efficiency calculation unit and a screening unit;

The efficiency calculation unit is used to collect the electrolytic cell current Q, static liquid flow Jtyl and static time Jtsj in the electrolytic cell process, and after dimensionless processing, the hydrogen production efficiency index xLz is calculated by the following formula:

;

;

In the formula, Qcl represents the actual measured hydrogen production by electrolysis, and Qth represents the theoretical hydrogen production, which is the theoretical amount of hydrogen produced at a given current calculated based on Faraday's law and the reaction equation;

Jtsj represents the static time, which is the duration of the electrolysis process. The static liquid flow Jtyl represents the flow rate of the electrolyte in the electrolytic cell. M represents the molar mass of the gas. The inverse of the molar mass is called the molar volume, which is used to calculate the gas volume. Here, it is the molar mass of hydrogen produced. The charge amount through electrolysis is calculated based on the current and electrolysis time. The charge number is the number of electrons. It is set to 1, indicating that each electron corresponds to one charge. The molar number of hydrogen is obtained based on the molar ratio in the chemical equation of the electrolysis product.

The screening unit is used to compare the hydrogen production efficiency index xLz with the efficiency threshold Y. For the electrolytic cell region where the hydrogen production efficiency index xLz < the efficiency threshold Y, it indicates that the hydrogen production efficiency is unqualified; for the electrolytic cell region where the hydrogen production efficiency index xLz ≥ the efficiency threshold Y, it indicates that the hydrogen production efficiency is qualified.

The areas where the hydrogen production efficiency index xLz is lower than the efficiency threshold Y are counted. If the ratio exceeds 30% in the total electrolytic cell area, it means that the ratio is exceeded. It is necessary to further analyze the reasons and maintain the electrolytic cells with unqualified hydrogen production efficiency, and issue regional electrolytic cell image acquisition instructions and regional sensor acquisition instructions.

In this embodiment, the hydrogen production efficiency index xLz is calculated by combining the electrolytic cell current, static liquid flow and static time parameters through the efficiency calculation unit. In this way, the hydrogen production efficiency of the electrolytic cell can be objectively evaluated, and data support can be provided for subsequent monitoring and maintenance. Through the screening unit, the calculated hydrogen production efficiency index is compared with the set efficiency threshold to automatically determine whether the hydrogen production efficiency of the electrolytic cell area is qualified. When the efficiency is lower than the threshold, it means that the hydrogen production efficiency is unqualified and further processing is required. When the ratio of the electrolytic cell area with unqualified hydrogen production efficiency exceeds the preset ratio, the system can promptly issue image acquisition instructions and regional sensor acquisition instructions to further analyze and maintain the abnormal area. This helps to promptly discover and deal with problems that restrict hydrogen production efficiency and improve overall production efficiency. The administrator can flexibly adjust the threshold and ratio of unqualified efficiency according to actual conditions to adapt to different production needs and conditions and improve the applicability and flexibility of the system.

Embodiment 4: This embodiment is an explanation based on Embodiment 1. As shown in FIG1 , specifically, the first acquisition module specifically acquires the following steps:

S1. Once a regional electrolytic cell image acquisition instruction is received, first confirm the regional number or coordinates of each unqualified efficiency region;

S2, then using an image acquisition device to take high-resolution photos of the electrolytic cells in each unqualified efficiency area to obtain regional electrolytic cell images;

S3. After preprocessing the collected regional electrolytic cell images including denoising, contrast enhancement and brightness adjustment, a regional image set is constructed by aggregation.

In this embodiment, the first acquisition module can accurately obtain the electrolytic cell image of each unqualified efficiency area, and improve the image quality through preprocessing, providing reliable data support for subsequent image analysis and processing. This helps to detect abnormal situations in time and take corresponding measures, thereby improving the effectiveness and reliability of the electrolytic cell monitoring module.

Embodiment 5, this embodiment is an explanation based on embodiment 1, as shown in FIG1 , specifically, the second acquisition module includes a sensor acquisition unit and a first calculation unit;

The sensor acquisition unit is used to collect the parameters of the electrolytic cell in the unqualified efficiency area. After the regional electrolytic cell image acquisition instruction is completed, the second sensor is used to acquire the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell in each area;

The second sensor includes a temperature sensor, a pressure sensor and a magnetic fluid sensor;

The temperature Jt in the electrolytic cell is directly measured by a temperature sensor;

The pressure Jy is measured by a pressure sensor and represents the pressure exerted by the gas inside the electrolytic cell on the container wall;

The stirring rate Js is obtained by collecting the movement of the magnetic stirring bar in the electrolytic cell through a magnetic fluid sensor;

The first calculation unit is used to collect the temperature Jt, pressure Jy and stirring rate Js in the same electrolytic cell in the same area and perform linear normalization processing, and map the corresponding data values in the interval [0, 1], and then generate the first quality index ZL ₁ according to the following formula:

;

in, To measure the average value of the electrolytic cell temperature in each monitoring period, It is the average value of the measured pressure during the monitoring period; is the mean value of the stirring rate measured during the monitoring period; α, β and γ are weight coefficients: 0≤β≤1, 0≤α≤1, 0≤γ≤1, and α+β+γ=1, where i=1, 2, ..., n, n is the number in the monitoring period and is a positive integer greater than 1.

In this embodiment, the sensor acquisition unit is used to collect the parameters of the electrolytic cell in the unqualified efficiency area. After the regional electrolytic cell image acquisition instruction is completed, the internal temperature Jt, pressure Jy and stirring rate Js parameters of the electrolytic cell in each area are collected by the second sensor; the first calculation unit processes and comprehensively evaluates the collected parameters to generate a representative first quality index ZL ₁ , which reflects the comprehensive situation of the parameters such as temperature, pressure and stirring rate in the electrolytic cell, and can evaluate and quantify the operating status of the electrolytic cell. Such a design can promptly detect abnormal conditions inside the electrolytic cell, help improve the stability and efficiency of the system, and ensure the smooth progress of the hydrogen production process.

Embodiment 6, this embodiment is an explanation based on Embodiment 1, as shown in FIG1 , specifically, the image recognition and analysis module includes a feature extraction unit and a second calculation unit;

The feature extraction unit is used to extract relevant features from each electrolytic cell image of the regional image set;

Relevant features include:

Electrolytic cell electrode spacing J: The distance between electrodes is measured by image processing technology;

Electrolytic cell electrode surface defect area X: Identify cracks, oxidation and fouling features on the electrode surface, and use processing algorithms to monitor the defect area on the electrode surface;

Battery surface area L: Monitor the battery boundary and calculate the area through image segmentation technology;

Gas foam distribution in the electrolytic cell: The gas foam size c and quantity SL of the electrolytic cell in the image are monitored by image analysis technology, and the gas foam distribution density Md is calculated by the following formula:

;

The second calculation unit is used to extract the distance between the electrodes of the electrolytic cell J, the surface defect area of the electrodes of the electrolytic cell X, the battery surface area L and the gas foam distribution density Md. After dimensionless processing, the second quality index ZL ₂ is generated by the following formula:

;

In the formula, represents the nonlinear effect of gas foam distribution density, and divided by In order to normalize it to the range of [0, 1], the meaning of the formula is that various parameters affecting the quality of the circulation pool are taken into account. The electrolytic cell electrode spacing J and the electrolytic cell electrode surface defect area X will affect the efficiency of the continuous reaction, while the gas bubble distribution density MD affects the gas release rate and the stability of the continuous process.

In this embodiment, the second calculation unit performs comprehensive analysis and evaluation on the extracted features to obtain a representative second quality index ZL ₂ , which comprehensively considers the effects of the electrode spacing, electrode surface defects, battery surface area and gas foam distribution density parameters of the electrolytic cell on the quality of the circulation cell, and can help the system monitor the status of the electrolytic cell in real time and make timely adjustments, thereby improving the stability and efficiency of the system and ensuring the smooth progress of the hydrogen production process.

Embodiment 7, this embodiment is an explanation based on Embodiment 1, as shown in FIG1 , specifically, the control module includes a first evaluation unit and a second evaluation unit;

The first evaluation unit is used to compare the first quality index ZL ₁ with the first threshold Y ₁ to obtain a first evaluation result, including:

When the first quality index ZL ₁ > the first threshold Y ₁ , it indicates that the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell are abnormal, and a first unqualified label is generated;

When the first quality index ZL ₁ ≤ the first threshold Y ₁ , it means that the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell are within the qualified range, and a first qualified label is generated;

The second evaluation unit is used to compare the second quality index ZL ₂ with the second threshold value Y ₂ to obtain a second evaluation result, including:

When the second quality index ZL ₂ > the second threshold value Y ₂ , it indicates that there are abnormalities in the electrolytic cell electrode spacing J, the electrolytic cell electrode surface defect area X, the battery surface area L and the gas foam distribution density Md, and a second unqualified label is generated;

When the second quality index ZL ₂ ≤ the second threshold value Y ₂ , it means that the electrolytic cell electrode spacing J, the electrolytic cell electrode surface defect area X, the battery surface area L and the gas foam distribution density Md are within the normal range, and a second qualified label is generated.

In this embodiment, the first evaluation unit and the second evaluation unit of the control module can timely evaluate the state of the electrolytic cell and generate corresponding labels according to the evaluation results, which is beneficial for the system to identify and handle abnormal situations, thereby improving the stability and efficiency of the system.

Embodiment 8, this embodiment is an explanation based on embodiment 7, as shown in FIG1, specifically, the control module further includes a difference calculation unit;

The difference calculation unit is used to extract the first quality index ZL ₁ and the second quality index ZL ₂ of the first unqualified label and the second unqualified label, and obtain the first difference D ₁ and the second difference D ₂ by the following formula;

.

The control module also includes a priority unit;

The control priority Yx _J of each region is constructed as follows: after linear normalization of the first difference D ₁ and the second difference D ₂ , the corresponding data values are mapped to the interval [0, 1], and then calculated according to the following formula:

;

Wherein, k is the number of first unqualified labels generated by the electrolytic cells in the region within the test duration, i=1, 2, ..., k; is to set the maximum first difference threshold; D _1i is the first difference of the first unqualified label generated by the i-th regional electrolytic cell, D _2i is the second difference of the second unqualified label generated by the regional electrolytic cell; m is the number of unqualified electrolytic cells in the region, i=1, 2, ..., m; is the maximum first difference threshold; ε and δ weight coefficients: 0≤ε≤1, 0≤δ≤1, and ε+δ=1, the weight coefficients are obtained by the hierarchical analysis method;

When in use, according to the control priority Yx _J and the pre-built maintenance plan library, the corresponding strategy is generated according to the generation strategy unit, and sequential priority control maintenance is performed from large to small according to the control priority Yx _J , and is significantly marked in the three-dimensional model of the production line.

In this embodiment, the first difference D ₁ It represents the deviation between the temperature, pressure and stirring rate parameters in the electrolytic cell and the expected values. When the first difference is greater than zero, it indicates that at least one of these parameters is not within the expected range, and there may be abnormal conditions that require further investigation and processing. Therefore, the beneficial effect of the first difference is to promptly discover system operation abnormalities and help locate and solve problems. The second difference D ₂ reflects the deviation between the quality indicators of the electrolytic cell electrode spacing, electrode surface defect area, battery surface area and gas foam distribution density and the expected values. When the second difference exceeds the threshold, it means that there are problems with the quality of the electrolytic cell, and the operating parameters may need to be adjusted or maintained. Therefore, the beneficial effect of the second difference is to help discover problems inside the electrolytic cell, thereby improving hydrogen production efficiency and system stability.

According to the control priority, each area can be controlled and maintained in an orderly manner, and areas with higher control priority can be processed first to ensure the stability and efficiency of the system. Areas with high priority will be paid attention to and processed by the system more quickly, ensuring the focus on system operation and effective resource allocation.

Embodiment 9, this embodiment is explained on the basis of embodiment 8, as shown in FIG1, specifically, the control module further includes a strategy generation unit;

The strategy generation unit is used to associate the first evaluation result and the second evaluation result of each region, and match and generate a corresponding strategy, including:

If the first evaluation result is a first qualified label and the second evaluation result is a second unqualified label, a first strategy is generated, including: maintaining the current operating parameters unchanged, at which time the temperature, pressure and stirring rate in the electrolytic cell are already within the qualified range and do not need to be adjusted; paying special attention to the indicators marked as abnormal in the second evaluation, adjusting the electrolytic cell electrode spacing J, cleaning or repairing the electrode surface, optimizing and increasing the size of the electrolytic cell, and changing the position of the gas release channel to adjust the distribution of gas bubbles;

If the first evaluation result is a first unqualified label and the second evaluation result is a second qualified label, a second strategy is generated to adjust and optimize the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell of the first unqualified label until they are adjusted to within the qualified index range;

If the first evaluation result is the first unqualified label and the second evaluation result is the second unqualified label, a third strategy is generated to adjust the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell, adjust the electrode spacing J of the electrolytic cell, clean or repair the electrode surface, optimize and increase the size of the electrolytic cell, and change the position of the gas release channel to adjust the distribution of gas bubbles.

In this embodiment, the implementation of these strategies is conducive to timely adjusting the operating status of the electrolytic cell system, improving hydrogen production efficiency, ensuring system stability and reliability, and thus promoting the continuous operation of the production line and the improvement of production capacity.

Claims (10)

1. The operation control system of the hydrogen production, storage and supply system of water electrolysis is characterized by comprising: The electrolytic cell monitoring module is used to divide several electrolytic cells into several areas, construct a hydrogen production efficiency index xLz based on the electrolytic cell power data in each area, and use this to screen out unqualified efficiency areas from each area. If the ratio of unqualified efficiency areas exceeds expectations, a regional electrolytic cell image acquisition instruction and a regional sensor acquisition instruction are issued to the unqualified efficiency areas; The first acquisition module is used to receive the regional electrolytic cell image acquisition instruction, acquire images of the electrolytic cells in each unqualified efficiency area, and after pre-processing the acquired regional electrolytic cell images, summarize and construct a regional image set; The second acquisition module is used to receive the regional sensor acquisition instruction, acquire the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell in each area through the second sensor acquisition, and construct the first quality index ZL ₁ ; The image recognition and analysis module constructs a second quality index ZL ₂ by identifying the distance J between the electrodes of the electrolytic cell, the surface defect area X of the electrodes of the electrolytic cell, the battery surface area L, and the distribution of gas bubbles in the electrolytic cell in the acquired regional image set; The control module evaluates the first quality index ZL ₁ and the second quality index ZL ₂ respectively, obtains corresponding difference features, matches corresponding regional control schemes for each region according to the difference features, and constructs a control priority Yx _J to control each region. 2. The operation control system of the water electrolysis hydrogen production, storage and supply system according to claim 1, characterized in that: the electrolytic cell monitoring module includes a three-dimensional model building unit, a deployment unit and a power collection unit; Establish a 3D model unit to collect design drawings and technical parameters of the production line for hydrogen production by water electrolysis, hydrogen storage and hydrogen supply; establish a 3D model of the production line based on the design drawings and technical parameters through AutoCAD, SolidWorks, Blender or SketchUp 3D modeling software. The 3D model of the production line includes electrolytic cells, hydrogen storage equipment, hydrogen supply equipment, pipelines, valves, connectors and brackets; after the 3D model of the production line is established, export it to 3D STL, OBJ and STEP formats; The deployment unit is used to divide a plurality of electrolytic cells into p regions in the three-dimensional model of the production line, and mark the p regions according to QY ₁ , QY ₂ , QY ₃ , ..., QY _p ; Installing a first sensor in each zone; The power collection unit is used to collect and obtain the electrolytic cell power data through the first sensor; The first sensor includes a gas sensor, a current sensor, a flow sensor and a time sensor; The actual measured amount of hydrogen produced by electrolysis Qcl is obtained by measuring with a gas sensor; The electrolytic cell current Q in the electrolytic cell process is measured by a current sensor; The static liquid flow Jtyl is measured and obtained by using a flow sensor in the electrolyte flow pipeline; The static time Jtsj is obtained by measuring the time sensor. 3. The operation control system of the water electrolysis hydrogen production, storage and supply system according to claim 1, characterized in that: the electrolytic cell monitoring module includes an efficiency calculation unit and a screening unit; The efficiency calculation unit is used to collect the electrolytic cell current Q, static liquid flow Jtyl and static time Jtsj in the electrolytic cell process, and after dimensionless processing, the hydrogen production efficiency index xLz is calculated by the following formula: ; ; In the formula, Qcl represents the actual measured hydrogen production by electrolysis, and Qth represents the theoretical hydrogen production, which is the theoretical amount of hydrogen produced at a given current calculated based on Faraday's law and the reaction equation; Jtsj represents the static time, which is the duration of the electrolysis process. The static liquid flow Jtyl represents the flow rate of the electrolyte in the electrolytic cell. M represents the molar mass of the gas. The inverse of the molar mass is called the molar volume, which is used to calculate the gas volume. Here, it is the molar mass of hydrogen produced. The charge amount through electrolysis is calculated based on the current and electrolysis time. The charge number is the number of electrons. It is set to 1, indicating that each electron corresponds to one charge. The molar number of hydrogen is obtained based on the molar ratio in the chemical equation of the electrolysis product. The screening unit is used to compare the hydrogen production efficiency index xLz with the efficiency threshold Y. For the electrolytic cell region where the hydrogen production efficiency index xLz < the efficiency threshold Y, it indicates that the hydrogen production efficiency is unqualified; for the electrolytic cell region where the hydrogen production efficiency index xLz ≥ the efficiency threshold Y, it indicates that the hydrogen production efficiency is qualified. The areas where the hydrogen production efficiency index xLz is lower than the efficiency threshold Y are counted. If the ratio exceeds 30% in the total electrolytic cell area, it means that the ratio is exceeded. It is necessary to further analyze the reasons and maintain the electrolytic cells with unqualified hydrogen production efficiency, and issue regional electrolytic cell image acquisition instructions and regional sensor acquisition instructions. 4. The operation control system of the water electrolysis hydrogen production, storage and supply system according to claim 1, characterized in that: the specific collection steps of the first collection module are: S1. Once a regional electrolytic cell image acquisition instruction is received, first confirm the regional number or coordinates of each unqualified efficiency region; S2, then using an image acquisition device to take high-resolution photos of the electrolytic cells in each unqualified efficiency area to obtain regional electrolytic cell images; S3. After preprocessing the collected regional electrolytic cell images including denoising, contrast enhancement and brightness adjustment, a regional image set is constructed by aggregation. 5. The operation control system of the water electrolysis hydrogen production, storage and supply system according to claim 1, characterized in that: the second acquisition module includes a sensor acquisition unit and a first calculation unit; The sensor acquisition unit is used to collect the parameters of the electrolytic cell in the unqualified efficiency area. After the regional electrolytic cell image acquisition instruction is completed, the second sensor is used to acquire the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell in each area; The second sensor includes a temperature sensor, a pressure sensor and a magnetic fluid sensor; The temperature Jt in the electrolytic cell is directly measured by a temperature sensor; The pressure Jy is measured by a pressure sensor and represents the pressure exerted by the gas inside the electrolytic cell on the container wall; The stirring rate Js is obtained by collecting the movement of the magnetic stirring bar in the electrolytic cell through a magnetic fluid sensor; The first calculation unit is used to collect the temperature Jt, pressure Jy and stirring rate Js in the same electrolytic cell in the same area and perform linear normalization processing, and map the corresponding data values in the interval [0, 1], and then generate the first quality index ZL ₁ according to the following formula: ; in, To measure the average value of the electrolytic cell temperature in each monitoring period, It is the average value of the measured pressure during the monitoring period; is the mean value of the stirring rate measured during the monitoring period; α, β and γ are weight coefficients: 0≤β≤1, 0≤α≤1, 0≤γ≤1, and α+β+γ=1, where i=1, 2, ..., n, n is the number in the monitoring period and is a positive integer greater than 1. 6. The operation control system of the water electrolysis hydrogen production, storage and supply system according to claim 1, characterized in that: the image recognition and analysis module includes a feature extraction unit and a second calculation unit; The feature extraction unit is used to extract relevant features from each electrolytic cell image of the regional image set; Relevant features include: Electrolytic cell electrode spacing J: The distance between electrodes is measured by image processing technology; Electrolytic cell electrode surface defect area X: Identify cracks, oxidation and fouling features on the electrode surface, and use processing algorithms to monitor the defect area on the electrode surface; Battery surface area L: Monitor the battery boundary and calculate the area through image segmentation technology; Gas foam distribution in the electrolytic cell: The gas foam size c and quantity SL of the electrolytic cell in the image are monitored by image analysis technology, and the gas foam distribution density Md is calculated by the following formula: ; The second calculation unit is used to extract the distance between the electrodes of the electrolytic cell J, the surface defect area of the electrodes of the electrolytic cell X, the battery surface area L and the gas foam distribution density Md. After dimensionless processing, the second quality index ZL ₂ is generated by the following formula: ; In the formula, represents the nonlinear effect of gas foam distribution density, and divided by In order to normalize it to the range of [0, 1], the meaning of the formula is that various parameters affecting the quality of the circulation pool are taken into account. The electrolytic cell electrode spacing J and the electrolytic cell electrode surface defect area X will affect the efficiency of the continuous reaction, while the gas bubble distribution density MD affects the gas release rate and the stability of the continuous process. 7. The operation control system of the water electrolysis hydrogen production, storage and supply system according to claim 1, characterized in that: the control module includes a first evaluation unit and a second evaluation unit; The first evaluation unit is used to compare the first quality index ZL ₁ with the first threshold Y ₁ to obtain a first evaluation result, including: When the first quality index ZL ₁ > the first threshold Y ₁ , it indicates that the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell are abnormal, and a first unqualified label is generated; When the first quality index ZL ₁ ≤ the first threshold Y ₁ , it means that the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell are within the qualified range, and a first qualified label is generated; The second evaluation unit is used to compare the second quality index ZL ₂ with the second threshold value Y ₂ to obtain a second evaluation result, including: When the second quality index ZL ₂ > the second threshold value Y ₂ , it indicates that there are abnormalities in the electrolytic cell electrode spacing J, the electrolytic cell electrode surface defect area X, the battery surface area L and the gas foam distribution density Md, and a second unqualified label is generated; When the second quality index ZL ₂ ≤ the second threshold value Y ₂ , it means that the electrolytic cell electrode spacing J, the electrolytic cell electrode surface defect area X, the battery surface area L and the gas foam distribution density Md are within the normal range, and a second qualified label is generated. 8. The operation control system of the water electrolysis hydrogen production, storage and supply system according to claim 7, characterized in that: the control module also includes a difference calculation unit; The difference calculation unit is used to extract the first quality index ZL ₁ and the second quality index ZL ₂ of the first unqualified label and the second unqualified label, and obtain the first difference D ₁ and the second difference D ₂ by the following formula; . 9. The operation control system of the water electrolysis hydrogen production, storage and supply system according to claim 7, characterized in that: the control module also includes a generation strategy unit; The strategy generation unit is used to associate the first evaluation result and the second evaluation result of each region, and match and generate a corresponding strategy, including: If the first evaluation result is a first qualified label and the second evaluation result is a second unqualified label, a first strategy is generated, including: maintaining the current operating parameters unchanged, at which time the temperature, pressure and stirring rate in the electrolytic cell are already within the qualified range and do not need to be adjusted; paying special attention to the indicators marked as abnormal in the second evaluation, adjusting the electrolytic cell electrode spacing J, cleaning or repairing the electrode surface, optimizing and increasing the size of the electrolytic cell, and changing the position of the gas release channel to adjust the distribution of gas bubbles; If the first evaluation result is a first unqualified label and the second evaluation result is a second qualified label, a second strategy is generated to adjust and optimize the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell of the first unqualified label until they are adjusted to within the qualified index range; If the first evaluation result is the first unqualified label and the second evaluation result is the second unqualified label, a third strategy is generated to adjust the temperature Jt, pressure Jy and stirring rate Js in the electrolytic cell, adjust the electrode spacing J of the electrolytic cell, clean or repair the electrode surface, optimize and increase the size of the electrolytic cell, and change the position of the gas release channel to adjust the distribution of gas bubbles. 10. The operation control system of the water electrolysis hydrogen production, storage and supply system according to claim 8, characterized in that: the control module also includes a priority unit; The control priority Yx _J of each region is constructed as follows: after linear normalization of the first difference D ₁ and the second difference D ₂ , the corresponding data values are mapped to the interval [0, 1], and then calculated according to the following formula: ; Wherein, k is the number of first unqualified labels generated by the electrolytic cells in the region within the test duration, i=1, 2, ..., k; is to set the maximum first difference threshold; D _1i is the first difference of the first unqualified label generated by the i-th regional electrolytic cell, D _2i is the second difference of the second unqualified label generated by the regional electrolytic cell; m is the number of unqualified electrolytic cells in the region, i=1, 2, ..., m; is the maximum first difference threshold; ε and δ weight coefficients: 0≤ε≤1, 0≤δ≤1, and ε+δ=1, the weight coefficients are obtained by the hierarchical analysis method; When in use, according to the control priority Yx _J and the pre-built maintenance plan library, the corresponding strategy is generated according to the generation strategy unit, and sequential priority control maintenance is performed from large to small according to the control priority Yx _J , and is significantly marked in the three-dimensional model of the production line.