Hydrogen energy system

Abstract

The invention provides a hydrogen energy system. The hydrogen energy system comprises a hydrogen production device, a hydrogen pipeline, a hydrogen storage device, a flame detection device, a fire extinguishing device and a controller. And the hydrogen storage device is connected with the hydrogen production device through the hydrogen pipeline. The flame detection device is used for detecting flames and determining relative position information of the flames and the flame detection device when the flames are detected. The fire extinguishing device comprises an ejector and a fire extinguishing medium, and the ejector can eject the fire extinguishing medium. The controller is in signal connection with the flame detection device, and the fire extinguishing device is controlled by the controller; the controller is configured to control the ejector to eject a fire extinguishing medium towards the flame according to the relative position information.

Description

Technical Field

[0001] The present application relates to the field of new energy technology, and in particular to a hydrogen energy system. Background Art

[0002] As a clean and efficient secondary energy source, hydrogen energy has received more and more attention. The hydrogen energy system includes a hydrogen production device, a hydrogen storage device and a hydrogen pipeline. The hydrogen production device is used to prepare hydrogen. The hydrogen storage device is connected to the hydrogen production device through a hydrogen pipeline. The hydrogen production device is connected to the hydrogen-using equipment through a hydrogen pipeline. Hydrogen is a flammable and explosive gas. It is very important to ensure the safety of the hydrogen energy system. Summary of the invention

[0003] The embodiment of the present application provides a hydrogen energy system. The hydrogen energy system comprises:

[0004] Hydrogen production equipment;

[0005] Hydrogen pipeline;

[0006] A hydrogen storage device connected to the hydrogen production device through the hydrogen pipeline;

[0007] A flame detection device, used to detect a flame and determine relative position information between the flame and the flame detection device when the flame is detected;

[0008] A fire extinguishing device, comprising an ejector and a fire extinguishing medium, wherein the ejector can eject the fire extinguishing medium;

[0009] A controller is connected to the flame detection device by signal, and the fire extinguishing device is controlled by the controller; the controller is configured to control the injector to spray the fire extinguishing medium toward the flame according to the relative position information. In one embodiment, the flame detection device includes at least two flame detectors arranged at intervals, and the relative position information includes first relative position information between each of the flame detectors and the flame; the flame detector is used to detect the flame and determine the first relative position information between the flame and the flame detector; the controller is specifically configured to: determine the position information of the flame according to each of the first relative position information and the position information of each of the flame detectors, and determine the second relative position information between the flame and the injector according to the position information of the flame and the position information of the injector, and then control the injector to spray the fire extinguishing medium according to the second relative position information.

[0010] In one embodiment, the fire extinguishing device includes a plurality of the injectors; the flame detection device includes at least two flame detectors arranged at intervals, and the relative position information includes first relative position information between each of the flame detectors and the flame; the flame detector is used to detect the flame and determine the first relative position information between the flame and the flame detector; the controller is specifically configured to: determine the position information of the flame according to each of the first relative position information and the position information of each of the flame detectors, and control the injector closest to the flame to spray the fire extinguishing medium toward the flame according to the position information of the flame.

[0011] In one embodiment, the flame detection device includes an infrared flame detector and an ultraviolet flame detector.

[0012] In one embodiment, the fire extinguishing device includes a plurality of fire extinguishing media, and the controller is configured to select the type of fire extinguishing media according to the location of the flame, and control the injector to inject the corresponding fire extinguishing media.

[0013] In one embodiment, the hydrogen pipeline is provided with a connecting structure and a valve; the hydrogen energy system further comprises a plurality of protective shells and a plurality of first hydrogen sensors, each of the protective shells encloses a cavity, at least one of the connecting structures is located in the cavity enclosed by the protective shells, and at least one of the valves is located in the cavity enclosed by the protective shells; each of the cavities is respectively provided with the first hydrogen sensor; each of the first hydrogen sensors is connected to the controller signal.

[0014] In one embodiment, the hydrogen energy system further includes a second hydrogen sensor, which is located outside each of the protective shells and spaced apart from the hydrogen production device and the hydrogen storage device; the second hydrogen sensor is connected to the controller signal.

[0015] In one embodiment, the valve comprises at least one solenoid valve, and the solenoid valve is controlled by the controller.

[0016] In one embodiment, the material of the protective shell is flame retardant material; and / or, the inner surface of the protective shell is provided with a heat insulation layer.

[0017] In one embodiment, the hydrogen pipeline is provided with a connecting structure and a valve; the hydrogen energy system also includes multiple first hydrogen sensors, at least one of the connecting structures is provided with the first hydrogen sensor, and at least one of the valves is provided with the first hydrogen sensor; a pressure sensor and a temperature sensor are provided in the hydrogen storage device, and the pressure sensor and the temperature sensor are respectively connected to the controller signal; the controller is provided with a machine learning model, and the controller collects data detected by the first hydrogen sensor, the pressure sensor and the temperature sensor, and inputs the data into the machine learning model, so that the machine learning model outputs a prediction result; the prediction result includes whether an abnormal event will occur, and the abnormal event includes fire, hydrogen leakage and hydrogen production device failure.

[0018] In one embodiment, the hydrogen pipeline is provided with a connection structure and a valve; the hydrogen energy system further includes a plurality of first hydrogen sensors, at least one of the connection structures is provided with the first hydrogen sensor, and at least one of the valves is provided with the first hydrogen sensor; the hydrogen energy system further includes a hydrogen absorption membrane, and the outer surface of the hydrogen storage device, each of the connection structures and each of the valves are respectively coated with the hydrogen absorption membrane; and / or,

[0019] The hydrogen energy system further comprises a gas extraction device.

[0020] The hydrogen energy system provided in the embodiment of the present application is provided with a flame detection device connected to the controller signal and a fire extinguishing device controlled by the controller. When the flame detection device detects a flame, the controller can control the injector to spray the fire extinguishing medium toward the flame according to the relative position of the flame and the flame detection device, so as to extinguish the flame in time, avoid the fire from increasing and spreading and causing a fire incident, and improve the safety of the hydrogen energy system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural schematic diagram of a hydrogen energy system provided by an exemplary embodiment of the present application;

[0022] Figure 2 is a block diagram of a partial structure of a hydrogen energy system provided by an exemplary embodiment of the present application;

[0023] Figure 3 It is a schematic diagram of the principle of a flame detector provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0025] If there are terms involving directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture; if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance.

[0026] The present application embodiment provides a hydrogen energy system. Figure 1 and Figure 2 As shown, the hydrogen energy system includes a hydrogen production device 10, a hydrogen pipeline 20, a hydrogen storage device 30, a flame detection device 40, a fire extinguishing device 50 and a controller 60.

[0027] The hydrogen storage device 30 is connected to the hydrogen production device 10 through the hydrogen pipeline 20. The flame detection device 40 is used to detect flames and determine the relative position information between the flame and the flame detection device 40 when the flame is detected. The fire extinguishing device 50 includes an injector 51 and a fire extinguishing medium 52, and the injector 51 can inject the fire extinguishing medium. The controller 60 is connected to the flame detection device 40 by signal, and the fire extinguishing device 50 is controlled by the controller 60; the controller 60 is configured to control the injector 51 to inject the fire extinguishing medium 52 toward the flame according to the relative position information.

[0028] The hydrogen energy system provided in the embodiment of the present application is provided with a flame detection device 40 connected to the controller 60 by signal and a fire extinguishing device 50 controlled by the controller 60. When the flame detection device 40 detects a flame, the controller can control the injector 51 to spray the fire extinguishing medium 52 toward the flame according to the relative position of the flame and the flame detection device 40, so as to extinguish the flame in time, avoid the increase and spread of the fire and cause a fire incident, and improve the safety of the hydrogen energy system.

[0029] In one embodiment, Figure 1As shown, the hydrogen production device 10 includes an electrolyzer 11, an oxygen separation device 12, a hydrogen separation device 13, a drying tower 14, a purifier 15, a power supply 16 and a pump 17. The power supply 16 is connected to the electrolyzer 11 to supply power to the electrolyzer 11. The electrolyzer 11 is connected to the oxygen separation device 12 and the hydrogen separation device 13 through pipelines; the oxygen generated by the electrolyzer 11 enters the oxygen separation device 12, and the oxygen separation device 12 separates the oxygen and the electrolyte; the hydrogen generated by the electrolyzer 11 enters the hydrogen separation device 13, and the hydrogen separation device 13 separates the hydrogen and the electrolyte; the pump 17 is respectively connected to the oxygen separation device 12 and the hydrogen separation device 13, and the separated electrolyte is pumped into the electrolyzer for reuse; the outlet of the hydrogen separation device 13 is connected to the inlet of the purifier 15 through a pipeline, and the purifier 15 purifies the hydrogen; the outlet of the purifier 15 is connected to the drying tower 14 through a pipeline, and the drying tower 14 dries the hydrogen.

[0030] In one embodiment, Figure 1 As shown, the hydrogen pipeline 20 includes a plurality of hydrogen pipelines 21 , and two adjacent devices are connected via the hydrogen pipeline 21 . Figure 1 In the illustrated embodiment, the drying tower 14 is connected to the purifier 15 via the hydrogen pipeline 21, the drying tower 14 is connected to the hydrogen storage device 30 via the hydrogen pipeline 21, the drying tower 14 is connected to the hydrogen using device 80 via the hydrogen pipeline 21, and the drying tower 14 is connected to the hydrogen storage device 30 via the hydrogen pipeline 21. In some embodiments, the hydrogen using device 80 includes a fuel cell.

[0031] In one embodiment, the hydrogen storage device 30 may include a plurality of hydrogen storage tanks. Figure 3 As shown, the flame detection device 40 includes at least two flame detectors 41 arranged at intervals, and the relative position information includes the first relative position information between each flame detector 41 and the flame; the flame detector 41 is used to detect the flame and determine the first relative position information between the flame and the flame detector 41; the controller 60 is specifically configured to: determine the position information of the flame according to each of the first relative position information and the position information of each of the flame detectors 41, and determine the second relative position information between the flame and the injector 51 according to the position information of the flame and the position information of the injector 51, and then control the injector 51 to inject the fire extinguishing medium according to the second relative position information. The position information may refer to the coordinates in the space where the hydrogen energy system is located. The position information of the injector 51 is pre-stored in the controller 60. For example, Figure 3As shown, the flame detection device 40 includes two flame detectors 41, and the relative position information of the flame and the flame detector 41 is the angles θ1 and θ2 between the line connecting the center of the flame 43 and the center of the flame detector 41 and the line connecting the centers of the two flame detectors 41. According to the positions of the two flame detectors 41 and the angles θ1 and θ2, the position of the flame 43 can be determined. The position of the flame can refer to the position of the center of the flame. The controller 60 can determine the relative position of the flame and the injector 51 according to the position of the flame 43 and the position of the injector 51, and then control the injector 51 to spray the fire extinguishing medium toward the flame.

[0032] In one embodiment, the fire extinguishing device includes a plurality of the injectors 51, and the controller is specifically configured to: determine the position information of the flame according to each of the first relative position information and the position information of each of the flame detectors 41, and control the injector 51 closest to the flame to spray the fire extinguishing medium toward the flame according to the position information of the flame. The controller 60 controls the injector 51 closest to the flame to spray the fire extinguishing medium toward the flame, so that the fire extinguishing medium can be in full contact with the flame, thereby improving the fire extinguishing effect.

[0033] In one embodiment, the flame detection device 40 includes an infrared flame detector and an ultraviolet flame detector. In this way, the flame is detected by cooperating with two different types of flame detectors, which can improve the accuracy and reliability of identifying flames under different lighting conditions and reduce the false detection rate of the flame detection device 40.

[0034] In one embodiment, when the hydrogen production device 10 and the hydrogen storage device 30 are located in different spaces, the hydrogen energy system includes at least two flame detection devices 40, and the space where the hydrogen production device 10 is located and the space where the hydrogen storage device 30 is located are each provided with at least one flame detection device 40.

[0035] In one embodiment, the fire extinguishing device 50 includes multiple fire extinguishing media, and the controller is configured to select the type of fire extinguishing media according to the location of the flame, and control the injector to inject the corresponding fire extinguishing media. For example, when the controller determines that there are no circuits or electrical appliances near the location of the flame, water can be used as the fire extinguishing medium, which can reduce the cost of fire extinguishing; when it is determined that there are circuits or electrical appliances near the location of the flame, dry powder can be used as the fire extinguishing medium to avoid damage to the circuit.

[0036] In one embodiment, Figure 1As shown, the hydrogen pipeline 20 is provided with a connection structure 22 and a valve 23; the hydrogen energy system further includes a plurality of protective shells 71 and a plurality of first hydrogen sensors 72, each of the protective shells 71 encloses a cavity, at least one of the connection structures 22 is located in a cavity enclosed by the protective shells 71, and at least one of the valves 23 is located in a cavity enclosed by the protective shells 71; each of the cavities is provided with a first hydrogen sensor 72; each of the first hydrogen sensors 72 is connected to the controller 60 by signal. The connection structure 22 and the valve 23 are areas where hydrogen leakage is prone to occur. By providing a protective shell 71 to enclose a cavity, and providing the connection structure 22 and the valve 23 in the cavity, the first hydrogen sensor 72 located in the cavity can detect whether hydrogen leakage occurs at the connection structure 22 and the valve 23. The controller 60 can determine that hydrogen leakage occurs at the connection structure 22 and the valve 23 according to the data detected by the first hydrogen sensor 72, and can take timely measures to deal with it, so as to avoid continued leakage of hydrogen or cause fire, etc. In some embodiments, the first hydrogen sensor 72 may be a semiconductor sensor or an optical fiber sensor, which has high sensitivity and fast response, and can detect hydrogen leakage in time. In some embodiments, a protective shell 71 and a first hydrogen sensor 72 are respectively provided at the connection structure and valve of the main pipeline in the hydrogen pipeline, and the main pipeline includes the portion of the hydrogen pipeline 20 between the hydrogen production device 10 and the hydrogen storage device 30 and the portion between the hydrogen production device 10 and the hydrogen-using equipment.

[0037] In some embodiments, Figure 1 As shown, the hydrogen pipeline 20 is provided with a plurality of connection structures 22 and a plurality of valves 23. The connection structure 22 is used to connect two hydrogen pipeline sections, or to connect different hydrogen pipeline sections to a gas storage tank or equipment of a hydrogen production device. The connection structure 22 can be a flange.

[0038] In some embodiments, Figure 1 and Figure 2 As shown, the hydrogen energy system further includes a second hydrogen sensor 73, which is located outside each of the protective shells 71 and is spaced apart from the hydrogen production device 10 and the hydrogen storage device 30; the second hydrogen sensor 73 is connected to the controller 60 by signal. When hydrogen leaks outside the protective shell 71 of the hydrogen energy system, it cannot be detected by the first hydrogen sensor 72. By setting the second hydrogen sensor 73, the second hydrogen sensor 73 can detect the hydrogen concentration in the space where the hydrogen energy system is located. The first hydrogen sensor 72 cooperates with the second hydrogen sensor 73 to improve the reliability of hydrogen leak detection. In some embodiments, the second hydrogen sensor 73 can be an optical sensor.

[0039] In one embodiment, when the hydrogen production device 10 and the hydrogen storage device 30 are located in different spaces, the hydrogen energy system includes a plurality of second hydrogen sensors 73 , and the space where the hydrogen production device 10 and the space where the hydrogen storage device 30 are located are both provided with a plurality of second hydrogen sensors 73 .

[0040] In one embodiment, the valve of the hydrogen energy system includes a main valve, which is connected to the outlet of the hydrogen production device 10 and is located between the outlet of the hydrogen production device 10 and the hydrogen storage device 30 and the hydrogen-using equipment. When a flame is detected, the controller can control the main valve to close to effectively block hydrogen leakage.

[0041] In one embodiment, the valve 23 includes at least one solenoid valve, which is controlled by the controller 60. With such a configuration, when the controller 60 determines that a leak occurs in the hydrogen energy system based on the data detected by the first hydrogen sensor 72, the solenoid valve can be controlled to close, thereby blocking the source of the leak and effectively preventing the hydrogen from continuing to leak. Specifically, when the controller determines that a hydrogen leak occurs in the pipeline position in the cavity where the first hydrogen sensor 72 is located based on the data detected by a first hydrogen sensor 72, the controller determines the solenoid valve adjacent to the first hydrogen sensor 72 and located in front of the first hydrogen sensor based on the position of the first hydrogen sensor 72, and closes the solenoid valve. The solenoid valve located in front of the first hydrogen sensor refers to the solenoid valve through which hydrogen first flows and then passes through the first hydrogen sensor. The solenoid valve can be made of high temperature and high pressure resistant materials to ensure that it can still work normally under high temperature and high pressure conditions.

[0042] In one embodiment, the material of the protective shell 71 is a flame retardant material. In this way, if the space where the hydrogen energy system is located is on fire, the protective shell 71 can protect the first hydrogen sensor 72 and prevent the flame from spreading to the first hydrogen sensor 72 and burning the first hydrogen sensor 72. The flame retardant material can have the characteristics of high temperature resistance, corrosion resistance, low smoke and low toxicity, so that the first hydrogen sensor 72 can be effectively protected.

[0043] In one embodiment, a heat insulation layer is provided on the inner surface of the protective shell 71. In this way, if the space where the hydrogen energy system is located is on fire, the heat insulation layer can delay the transfer of heat to the first hydrogen sensor 72, thereby preventing the first hydrogen sensor 72 from being damaged due to excessive temperature.

[0044] In one embodiment, the hydrogen energy system further includes a hydrogen absorption membrane, and the outer surface of the hydrogen storage device, each of the connection structures and each of the valves are respectively coated with the hydrogen absorption membrane. In this way, when hydrogen leakage occurs, the hydrogen absorption membrane can adsorb hydrogen in time to prevent hydrogen diffusion, which can further improve the safety of the hydrogen energy system. In some embodiments, the hydrogen absorption membrane is made of nanoporous material, which has a large specific surface area and excellent adsorption performance, and has a good ability to adsorb hydrogen energy. In some embodiments, the inner surface of the protective shell 71 is provided with the hydrogen absorption membrane.

[0045] In one embodiment, the hydrogen energy system further includes an exhaust device. With such a configuration, when the controller determines that hydrogen leakage occurs in the hydrogen energy system, it can control the exhaust device to start, so that the exhaust device can extract hydrogen from the space where the hydrogen energy system is located, further reducing the hydrogen concentration in the space where the hydrogen energy system is located, and improving the safety of the hydrogen energy system. In some embodiments, the top and side of the hydrogen storage tank may be provided with exhaust devices, respectively. The exhaust device may include a pump and a gas pipeline.

[0046] In one embodiment, the hydrogen energy system further includes an alarm device, and when the controller determines that hydrogen leakage occurs in the hydrogen energy system and a flame is detected, the alarm device is controlled to alarm. The alarm device can emit an audible alarm signal and a light alarm signal for reminder.

[0047] In one embodiment, the controller is provided with a communication module, so that the controller can send an alarm or reminder message to a communication device of a relevant person through the communication module.

[0048] In one embodiment, Figure 2 As shown, the hydrogen storage device is provided with a pressure sensor 92 and a temperature sensor 91, and the pressure sensor 92 and the temperature sensor 91 are respectively connected to the controller 60 by signal; the controller 60 is provided with a machine learning model, and the controller 60 collects the data detected by the first hydrogen sensor 72, the pressure sensor 92 and the temperature sensor 91, and inputs the data into the machine learning model, so that the machine learning model outputs a prediction result; the prediction result includes whether an abnormal event will occur, and the abnormal event includes fire, hydrogen leakage and hydrogen production device failure. In this way, the machine learning model can be used to predict abnormal events, and when abnormal events are predicted, measures can be taken in advance to prevent the occurrence of abnormal events.

[0049] In some embodiments, before using the machine learning model, the machine learning model is first trained, and historical data can be input into the machine learning model for training, and the historical data includes the hydrogen concentration detected by the first hydrogen sensor, the pressure data detected by the pressure sensor, the temperature data detected by the temperature sensor, and abnormal events. Before inputting the historical data into the machine learning model, the historical data can be preprocessed, and the preprocessing process may include the following processes: cleaning the data, removing noise data and abnormal values, and ensuring the accuracy and reliability of the data; normalizing the cleaned data to make the dimensions of the same type of data the same; classifying the historical data and setting data labels, marking the data corresponding to abnormal events and the data corresponding to non-abnormal events.

[0050] According to the characteristics of the predicted event, a suitable machine learning model can be selected for training. Commonly used models include time series models and supervised learning models. Time series models include ARIMA (Autoregressive Integrated Moving Average Model) and LSTM (Long Short-Term Memory Network), supervised learning models include support vector machine (SVM) model, random forest model, gradient boosting decision tree (GBDT) model, etc. Historical data can be divided into training data sets and test data sets. After inputting the data of the training data set into the machine learning model, the machine learning model extracts the time series features (such as daily, weekly, and monthly periodic changes), statistical features (such as the average, standard deviation, maximum, minimum, skewness, kurtosis, etc. of various types of data), rate of change features (such as pressure change rate, temperature change rate, etc.) and event features (such as the law of data changes a few hours or days before and after abnormal events such as leakage events and fire events); then the machine learning model uses feature selection algorithms (such as principal component analysis, mutual information method, etc.) to select the features that have the greatest impact on the prediction results, reduce the feature dimensions, and avoid overfitting of the machine learning model. During the training of the machine learning model, the model parameters are constantly adjusted so that it can accurately predict abnormal events. After the training is completed, the trained model is evaluated using the test set data set, and the prediction accuracy of the machine learning model is calculated to ensure the prediction performance of the model.

[0051] The controller will input the real-time collected data into the trained machine learning model, which will analyze the real-time data and output the prediction results. When the machine learning model predicts an abnormal event, the controller can prevent accidents by sending an alarm to the control alarm device and a reminder message to relevant personnel, or by initiating corresponding safety protection measures, such as closing valves and starting the exhaust system.

[0052] In one embodiment, as the hydrogen energy system continues to operate and data accumulates, the controller can periodically use an updated database to retrain the machine learning model so that it can adapt to the latest status and changing trends of the hydrogen energy system and improve its prediction accuracy. The controller can also periodically evaluate the prediction accuracy of the machine learning model, and when its prediction accuracy is low, optimize the parameters and structure of the machine learning model to achieve the purpose of improving its prediction accuracy and reliability.

[0053] The hydrogen energy system provided in the embodiment of the present application forms a comprehensive safety protection system from leak detection, leak suppression to fire source control by setting flame detectors, fire extinguishing devices, hydrogen sensors, etc., which can effectively improve the safety of the hydrogen energy storage system and reduce the risk of accidents caused by hydrogen leaks and fires.

[0054] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without causing conflicts. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A hydrogen energy system, characterized in that: include: Hydrogen production equipment; Hydrogen pipeline; A hydrogen storage device connected to the hydrogen production device through the hydrogen pipeline; A flame detection device, used to detect a flame and determine relative position information between the flame and the flame detection device when the flame is detected; A fire extinguishing device, comprising an ejector and a fire extinguishing medium, wherein the ejector can eject the fire extinguishing medium; A controller, connected to the flame detection device by signal, and the fire extinguishing device is controlled by the controller; The controller is configured to control the injector to inject a fire extinguishing medium toward the flame according to the relative position information.

2. The hydrogen energy system according to claim 1, characterized in that: The flame detection device includes at least two flame detectors arranged at intervals, and the relative position information includes first relative position information between each flame detector and the flame; the flame detector is used to detect the flame and determine the first relative position information between the flame and the flame detector; the controller is specifically configured to: determine the position information of the flame according to each of the first relative position information and the position information of each of the flame detectors, and determine the second relative position information between the flame and the injector according to the position information of the flame and the position information of the injector, and then control the injector to spray the fire extinguishing medium according to the second relative position information.

3. The hydrogen energy system according to claim 1, characterized in that: The fire extinguishing device includes a plurality of the injectors; the flame detection device includes at least two flame detectors arranged at intervals, and the relative position information includes first relative position information between each of the flame detectors and the flame; the flame detector is used to detect the flame and determine the first relative position information between the flame and the flame detector; the controller is specifically configured to: determine the position information of the flame according to each of the first relative position information and the position information of each of the flame detectors, and control the injector closest to the flame to spray the fire extinguishing medium toward the flame according to the position information of the flame.

4. The hydrogen energy system according to claim 1, characterized in that: The flame detection device includes an infrared flame detector and an ultraviolet flame detector; and / or, The fire extinguishing device includes a plurality of fire extinguishing media, and the controller is configured to select the type of fire extinguishing media according to the location of the flame, and control the injector to inject the corresponding fire extinguishing media.

5. The hydrogen energy system according to claim 1, characterized in that: The hydrogen pipeline is provided with a connecting structure and a valve; the hydrogen energy system also includes a plurality of protective shells and a plurality of first hydrogen sensors, each of the protective shells encloses a cavity, at least one of the connecting structures is located in the cavity enclosed by the protective shells, and at least one of the valves is located in the cavity enclosed by the protective shells; each of the cavities is respectively provided with the first hydrogen sensor; each of the first hydrogen sensors is connected to the controller signal.

6. The hydrogen energy system according to claim 5, characterized in that: The hydrogen energy system further includes a second hydrogen sensor, which is located outside each of the protective shells and spaced apart from the hydrogen production device and the hydrogen storage device; the second hydrogen sensor is connected to the controller signal.

7. The hydrogen energy system according to claim 5, characterized in that: The valve includes at least one solenoid valve, and the solenoid valve is controlled by the controller.

8. The hydrogen energy system according to claim 5, characterized in that: The material of the protective shell is flame retardant material; and / or the inner surface of the protective shell is provided with a heat insulation layer.

9. The hydrogen energy system according to claim 1, characterized in that: The hydrogen pipeline is provided with a connecting structure and a valve; the hydrogen energy system also includes multiple first hydrogen sensors, at least one of the connecting structures is provided with the first hydrogen sensor, and at least one of the valves is provided with the first hydrogen sensor; a pressure sensor and a temperature sensor are provided in the hydrogen storage device, and the pressure sensor and the temperature sensor are respectively connected to the controller signal; the controller is provided with a machine learning model, and the controller collects data detected by the first hydrogen sensor, the pressure sensor and the temperature sensor, and inputs the data into the machine learning model, so that the machine learning model outputs a prediction result; the prediction result includes whether an abnormal event will occur, and the abnormal event includes fire, hydrogen leakage and hydrogen production device failure.

10. The hydrogen energy system according to claim 1, characterized in that: The hydrogen pipeline is provided with a connection structure and a valve; the hydrogen energy system further includes a plurality of first hydrogen sensors, at least one of the connection structures is provided with the first hydrogen sensor, and at least one of the valves is provided with the first hydrogen sensor; the hydrogen energy system further includes a hydrogen absorption membrane, and the outer surface of the hydrogen storage device, each of the connection structures and each of the valves are respectively coated with the hydrogen absorption membrane; and / or, The hydrogen energy system further comprises a gas extraction device.

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