A hydrogen production and charging system and a control method thereof

Abstract

The application provides a hydrogen production and filling system and a control method thereof, comprising: a plurality of hydrogen production devices placed in a containing space and used for producing hydrogen; a hydrogen filling device placed in the containing space and connected with hydrogen outlet pipelines of the hydrogen production devices; and a hydrogen storage device connected with the hydrogen filling device and used for receiving hydrogen and storing hydrogen produced by the hydrogen production devices; wherein the hydrogen filling device controls its off state to control hydrogen filling from any hydrogen production device to any hydrogen storage device. After the above technical scheme is adopted, the hydrogen production and filling system can fully meet a large number of hydrogen filling application scenarios, is controllable, has low energy consumption, low operation cost, safety and reliability, and has a wide application range.

Description

Technical Field

[0001] This invention relates to the field of energy, and more particularly to a hydrogen production and filling system and its control method. Background Technology

[0002] In my country, the hydrogen energy industry is gradually entering a period of rapid development.

[0003] Hydrogen refueling stations, as infrastructure providing hydrogen for hydrogen energy end products, are crucial hubs connecting upstream hydrogen production and downstream applications in the industry chain. A hydrogen refueling station mainly consists of a hydrogen production system, a compression system, a storage system, a refueling system, and a control system. In terms of cost structure, compressor costs and land acquisition costs account for the highest proportions, at 34% and 27%, respectively. From an equipment perspective, compressors, hydrogen storage tanks, and hydrogen refueling machines account for a combined 55% of the cost.

[0004] As the market for hydrogen energy end products such as hydrogen-powered bicycles and hydrogen emergency power supplies further expands, various hydrogen-using products or equipment urgently need hydrogen storage devices of different types and capacities. Since the frequency of use and peak and off-peak use of hydrogen storage devices (hydrogen cylinders, hydrogen rods) are difficult to predict, there will be periods when a large number of hydrogen storage devices need to be filled with hydrogen, and periods when very few hydrogen needs to be filled with hydrogen.

[0005] Therefore, a hydrogen production and charging system that can control the amount and rate of hydrogen production and charging is needed, and can be adjusted in real time according to various needs. Summary of the Invention

[0006] In order to overcome the above-mentioned technical defects, the purpose of this invention is to provide a hydrogen production and filling system and its control method, which, while fully meeting the requirements of a large number of hydrogen filling application scenarios, achieves controllable hydrogen production and filling, low energy consumption, low operating cost, safety and reliability, and no waste of hydrogen, and has a wide range of applications.

[0007] This invention discloses a hydrogen production and charging system.

[0008] Multiple hydrogen production devices are placed in a containment space to produce hydrogen gas;

[0009] A hydrogen filling device is placed in a accommodating space and is connected to the hydrogen outlet pipeline of the hydrogen production device to store hydrogen produced by the hydrogen production device.

[0010] A hydrogen storage device has a hydrogen storage space for storing hydrogen and is connected to a hydrogen filling device to receive hydrogen.

[0011] in

[0012] The hydrogen charging device controls its own shutdown state to control any hydrogen production device to charge any hydrogen storage device.

[0013] Preferably, the hydrogen charging device includes:

[0014] Valve assembly, connecting the hydrogen production unit and the hydrogen storage unit;

[0015] The valve assembly includes a main valve group and a slave valve group;

[0016] The main valve assembly includes at least two main valves, and one end of each main valve is connected to at least one hydrogen production device;

[0017] The valve group includes at least two slave valves, each slave valve is connected to a main valve at one end and a hydrogen storage device at the other end;

[0018] When any main valve is opened or closed under control, the hydrogen outlet pipeline of the hydrogen production unit connected to it is opened or closed.

[0019] When any valve is opened or closed in a controlled manner, the hydrogen charging pipeline of the hydrogen storage device connected to it is opened or closed.

[0020] Preferably, the number of main valves is less than or equal to the number of slave valves;

[0021] The main valve group and the slave valve group are connected in series, so that all the main valves are connected in parallel and all the slave valves are connected in parallel.

[0022] Preferably, it further includes:

[0023] The control module is electrically connected to the hydrogen production unit, the hydrogen charging unit, and the hydrogen storage unit to obtain the hydrogen production rate of the hydrogen production unit, the hydrogen charging rate of the hydrogen charging unit, and the current hydrogen quantity of the hydrogen storage unit.

[0024] Preferably, the control module acquires hydrogen storage information of the hydrogen storage device and connection information with the hydrogen charging device;

[0025] When the connection information with the hydrogen charging device is: when the connection with the hydrogen charging device is successful, the control module sends a start working command to the hydrogen production device to control the hydrogen production device to deliver hydrogen to the hydrogen charging device and to control the hydrogen charging device to charge hydrogen into the hydrogen storage device.

[0026] The control module acquires hydrogen storage information from the hydrogen storage device in real time. When the hydrogen storage information shows that it is full, it sends a command to the hydrogen production device to end the operation.

[0027] Preferably, the control module is further configured as follows:

[0028] Obtain the remaining hydrogen quantity from hydrogen storage information;

[0029] The remaining hydrogen content is compared with a preset hydrogen content standard, which includes a first hydrogen content range of 0% to a first hydrogen content threshold, a second hydrogen content range of the first hydrogen content threshold to a second hydrogen content threshold, and a third hydrogen content range of the second hydrogen content threshold to 100%.

[0030] When the remaining hydrogen quantity falls into the first hydrogen quantity range, the control module opens the main valves of the first percentage and above, as well as the slave valves connected to all hydrogen storage devices whose remaining hydrogen quantity falls into the first hydrogen quantity range.

[0031] When the remaining hydrogen quantity falls into the second hydrogen quantity range, the control module opens the main valve for the second percentage and below, as well as the slave valve connected to all hydrogen storage devices whose remaining hydrogen quantity falls into the second hydrogen quantity range;

[0032] When the remaining hydrogen quantity falls into the third hydrogen quantity range, the control module opens the main valve for the third percentage and below, as well as the slave valves connected to all hydrogen storage devices whose remaining hydrogen quantity falls into the second hydrogen quantity range.

[0033] Preferably, the control module is further configured as follows:

[0034] When the proportion of hydrogen storage devices with remaining hydrogen falling into the first hydrogen range exceeds 100% minus the first percentage, the control module starts the hydrogen production devices with the first percentage and above, and disconnects the slave valves connected to all hydrogen storage devices with remaining hydrogen not falling into the first hydrogen range, wherein the number of hydrogen production devices started is greater than the number of hydrogen storage devices.

[0035] When the hydrogen absorption rate of the hydrogen storage device is less than the hydrogen production rate of the activated hydrogen production device, all main valves shall be closed within a preset time period, or the activated hydrogen production device shall be shut down.

[0036] Preferably, it further includes:

[0037] The cloud management platform communicates with the control module to obtain operational information about the hydrogen production and charging system.

[0038] The hydrogen storage information of the hydrogen storage device is sent to the cloud management platform;

[0039] Hydrogen storage devices include:

[0040] The digital identity is located inside or on the casing of the hydrogen storage device. When the hydrogen filling device fills the hydrogen storage device with hydrogen, the hydrogen filling device writes the amount of hydrogen to be filled, and the control module reads the digital identity to obtain the identity information and remaining amount of hydrogen of the hydrogen storage device.

[0041] Preferably, it further includes:

[0042] The intelligent terminal communicates with the control module to obtain the working information of the hydrogen production and filling system and present it to the user.

[0043] The cooling device is in close contact with the outer surface of the hydrogen storage device, or the cooling medium outlet of the cooling device faces the hydrogen storage device, and cools the hydrogen storage device by conduction or convection.

[0044] This invention also discloses a method for controlling hydrogen production and charging, comprising the following steps:

[0045] The hydrogen production and filling system is configured as follows, such that the hydrogen production and filling system includes:

[0046] A plurality of hydrogen production devices are placed in a containment space and produce hydrogen gas; a hydrogen filling device is placed in a containment space and is connected to the hydrogen outlet pipeline of the hydrogen production devices; a hydrogen storage device has a hydrogen storage space for storing hydrogen gas and is connected to the hydrogen filling device to store the hydrogen gas produced by the hydrogen production devices.

[0047] When the hydrogen charging device controls its own shutdown state, it controls any of the hydrogen production devices to charge any of the hydrogen storage devices with hydrogen.

[0048] Compared with existing technologies, the above technical solution has the following advantages:

[0049] 1. Any hydrogen production device can be connected to any hydrogen storage device, achieving efficient hydrogen production at a low cost;

[0050] 2. The hydrogen storage device can store hydrogen efficiently and safely. Therefore, compared with existing hydrogen refueling stations, the hydrogen production and filling system in this invention reduces construction costs. The integrated hydrogen production and filling system can be built in any suitable location.

[0051] 3. Localized hydrogen production has been achieved, enabling the hydrogen production and filling system to provide users with hydrogen-filled storage devices at any time. This allows users to go to any hydrogen production, filling, storage and exchange system for hydrogen filling or exchange, improving convenience.

[0052] 4. Hydrogen production efficiency and power consumption can be adjusted in real time according to the amount of hydrogen to be charged and the remaining hydrogen, saving energy.

[0053] 5. While fully meeting the requirements of numerous hydrogen filling applications, it achieves controllable hydrogen production and filling, low energy consumption, low operating costs, safety and reliability, and no waste of hydrogen, with a wide range of applications. Attached Figure Description

[0054] Figure 1 A schematic diagram of the hydrogen production and charging system in accordance with a preferred embodiment of the present invention. Detailed Implementation

[0055] The advantages of the present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments.

[0056] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0057] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0058] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0059] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0060] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0061] In the following description, suffixes such as "module," "part," or "unit" used to denote elements are used only for the convenience of the description of the invention and have no specific meaning in themselves. Therefore, "module" and "part" can be used interchangeably.

[0062] See Figure 1 To conform to the system architecture diagram of the hydrogen production and filling system in a preferred embodiment of the present invention, in this embodiment, the hydrogen production and filling system is used to manage a hydrogen production device that can generate hydrogen, a hydrogen filling device that can fill other devices with the generated hydrogen, and a hydrogen storage device that can store hydrogen (all of the above devices can use common existing equipment). Specifically, the hydrogen production and filling system includes:

[0063] - Hydrogen production unit

[0064] The hydrogen production device consists of multiple units housed within a storage space (e.g., the storage space is formed within a box or cabinet), and hydrogen can be produced using technologies such as commercial water electrolysis.

[0065] - Hydrogen charging device

[0066] There are multiple hydrogen charging devices, which can be installed in the same container as the hydrogen production unit or in separate containers. Regardless of the installation method, the charging devices are connected to the hydrogen outlet pipeline of the hydrogen production unit. When hydrogen produced by the hydrogen production unit is formed, the hydrogen is pressurized or transported to the outlet pipeline under normal pressure until it is delivered to the charging device. It is understood that when the charging device is not in operation, not turned on, or not connected to the hydrogen production unit (e.g., the outlet pipeline is intentionally cut off), the hydrogen produced by the hydrogen production unit will not be delivered to the charging device. Thus, since there are multiple charging devices, this means that when some charging devices are in the aforementioned state while others are operating normally, the hydrogen produced by the hydrogen production unit will only be supplied to the operating charging devices. Furthermore, by controlling the operating state of different charging devices, the flow of hydrogen can be controlled (in some cases, the hydrogen production unit can operate continuously without considering the state of the charging devices; in other cases, some hydrogen production units can be shut down).

[0067] - Hydrogen storage device

[0068] A hydrogen storage device, as mentioned above, is a device for storing hydrogen. It has a hydrogen storage space, including a storage container and hydrogen inlets / outlets. The storage container holds hydrogen and / or solid hydrogen storage materials and their internal components. When a hydrogen storage device is placed in a hydrogen production and filling system, it indicates that the user needs to fill the device with hydrogen. When the device is removed from the system, it indicates that the user needs to use the device after it has stored hydrogen. The areas for placing hydrogen storage devices correspond one-to-one with the filling devices. Controlling the filling devices allows for the filling of different storage devices. In other words, the filling device, as an intermediate medium connecting the hydrogen production and storage devices, controls the state of the hydrogen outlet pipeline for filling hydrogen from the production device, and also controls the state of the filling pipeline on the storage device side. Arbitrary control on both sides allows for arbitrary adjustment of the capacity of the production device, the state of the storage device, and the needs of the storage device. Here, a matrix control system is used. It is a matrix-based control system that can combine the opening and closing of multiple hydrogen outlet pipelines and multiple hydrogen filling pipelines, thereby controlling multiple hydrogen storage devices or hydrogen production devices. Simply put, a matrix control system can combine multiple controls to achieve control of the entire hydrogen production and filling system.

[0069] With the above configuration, regardless of the number of hydrogen storage devices that need to be filled with hydrogen, the operating status of the hydrogen production device can be adjusted in real time according to the status of the hydrogen storage devices, so as to adopt the hydrogen production and filling strategy most suitable for the current use.

[0070] In addition, to control the hydrogen output pipeline of the hydrogen production unit, the hydrogen production and charging system also includes a valve assembly connected between the hydrogen production unit and the hydrogen storage unit. The valve assembly includes a main valve group and a slave valve group. The connection between the hydrogen production unit and the hydrogen storage unit is achieved only when both the main valve group and the slave valve group are fully or partially open. In other words, when at least one valve in the main valve group is open, the hydrogen produced by the hydrogen production unit can still be output; if one valve in the slave valve group is closed, the hydrogen storage unit on that line cannot be charged with hydrogen. Specifically, the main valve group includes at least two main valves, each connected to at least one hydrogen production unit. The number of main valves can be configured to be less than or equal to the number of hydrogen production units. When the number of main valves is less than the number of hydrogen production units, one main valve can be connected in parallel to at least two hydrogen production units, meaning that the main valve will control these at least two hydrogen production units simultaneously. When the number of main valves is equal to the number of hydrogen production units, one main valve is connected to one hydrogen production unit, meaning that the main valve will only control that one hydrogen production unit. The valve assembly includes at least two slave valves, each of which is connected at one end to a main valve and at the other end to a hydrogen storage device.

[0071] When the main valve is opened and closed under control, the hydrogen outlet pipeline of the hydrogen production unit connected to the main valve is opened and closed; when any slave valve is opened and closed under control, the hydrogen charging pipeline of the hydrogen storage unit connected to the slave valve is opened and closed. In other words, which hydrogen storage units need to be charged with hydrogen, when, and at what charging rate can all be achieved by controlling the free combination of main and slave valves within the main valve group and slave valve group.

[0072] More preferably, the main valve group and the slave valve group are connected in series, so that all the main valves are connected in parallel, and all the slave valves are connected in parallel. With this configuration, the user does not even need to consider which main valves to open, but only how many main valves to open or control the opening degree of any one or any one main valve, that is, to control the speed and flow rate of hydrogen production and output. However, to determine which hydrogen storage devices need to be charged with hydrogen, it is necessary to control which slave valves to open or control the opening degree of any one or any one slave valve.

[0073] In a preferred embodiment, to facilitate control of each device, the hydrogen production and charging system also includes a control module, such as a control chip, electrically connected to the hydrogen production device, hydrogen charging device, and hydrogen storage device. Control of the hydrogen production device can include turning it on or off, and controlling its hydrogen production rate. Control of the hydrogen charging device can include turning it on or off, and controlling its charging rate. Control of the hydrogen storage device can include acquiring information such as the remaining hydrogen quantity, temperature, and pressure. By acquiring information such as the hydrogen production rate of the hydrogen production device, the charging rate of the hydrogen charging device, and the current hydrogen quantity of the hydrogen storage device, the state of other devices can be controlled. In other words, this information is both interconnected and mutually influential.

[0074] In a preferred embodiment, the control module is configured with the following control logic:

[0075] The control module acquires hydrogen storage information from the hydrogen storage device and its connection information with the hydrogen charging device. The hydrogen storage information can be from a hydrogen-consuming device equipped with the storage device. When hydrogen is consumed from the storage device, the module writes the amount of hydrogen consumed to a read / write chip on the storage device in real time. The chip then continuously records the remaining hydrogen amount. The charging device reads this chip to determine the remaining hydrogen quantity. Furthermore, when the hydrogen storage device is fully placed in the designated storage space, the storage space can be configured so that the hydrogen storage device is connected to the charging device at its installation location. Therefore, to further control the hydrogen charging path between the hydrogen charging device and the hydrogen storage device, when the connection information with the hydrogen charging device is as follows: Upon successful connection (which can be obtained through the control module's control of the main valve group and slave valve group), the control module sends a start-up command to the hydrogen production device to control the hydrogen production device to supply hydrogen to the hydrogen charging device and to control the hydrogen charging device to charge hydrogen into the hydrogen storage device; the control module obtains the hydrogen storage information of the hydrogen storage device in real time, and when the hydrogen storage information shows that it is full, it sends a stop-up command to the hydrogen production device, thereby completing the hydrogen charging of the hydrogen storage device. More preferably, the hydrogen charging speed can be adjusted according to the hydrogen charging time (e.g., low electricity demand at night, high electricity demand during the day) and the status of other hydrogen storage devices (e.g., the cabinet contains multiple fully charged hydrogen storage devices).

[0076] Furthermore, the control module is also configured as follows:

[0077] First, the control module obtains the remaining hydrogen quantity from the hydrogen storage information to understand the status of the hydrogen storage device placed in the hydrogen production and filling system.

[0078] Secondly, the remaining hydrogen quantity is compared with a preset hydrogen quantity standard, which includes a first hydrogen quantity range from 0% to a first hydrogen quantity threshold (e.g., 20%) (this first hydrogen quantity range can be defined as "empty bottle state"), a second hydrogen quantity range from the first hydrogen quantity threshold to a second hydrogen quantity threshold (e.g., 60%, 70%, or 80%) (this second hydrogen quantity range can be defined as "half-bottle state"), and a third hydrogen quantity range from the second hydrogen quantity threshold to 100% (this third hydrogen quantity range can be defined as "full bottle state"). It is understood that in different embodiments, the hydrogen quantity range can be increased or decreased according to the user's needs to evaluate the remaining hydrogen quantity in more states.

[0079] Furthermore, the evaluation of hydrogen storage devices aims to address different hydrogen charging methods, such as:

[0080] When the remaining hydrogen quantity falls into the first hydrogen quantity range, as mentioned above, the hydrogen storage device is identified as "empty bottle state". The control module then opens the main valves of the first percentage (e.g., 80%) and above (the specific main valves that are opened can be freely configured), as well as the slave valves connected to all hydrogen storage devices whose remaining hydrogen quantity falls into the first hydrogen quantity range, thereby increasing the hydrogen production to meet the need for rapid hydrogen charging of hydrogen storage devices in the "empty bottle state".

[0081] When the remaining hydrogen quantity falls into the second hydrogen quantity range, as described above, the hydrogen storage device is identified as "half-full". The control module then opens the main valve for the second percentage (e.g., 50%) or less, or more preferably, not less than 30%, and opens the slave valves connected to all hydrogen storage devices whose remaining hydrogen quantity falls into the second hydrogen quantity range.

[0082] When the remaining hydrogen quantity falls into the third hydrogen quantity range, as described above, the hydrogen storage device is identified as "full". The control module then opens the main valve for the third percentage (e.g., 20%) and below, as well as the slave valves connected to all hydrogen storage devices whose remaining hydrogen quantity falls into the second hydrogen quantity range. This reduces the number of working hydrogen production devices, thereby saving energy consumption in the hydrogen production and filling system.

[0083] Through the control logic of the aforementioned control module, the operating status of the hydrogen production unit can be intelligently adjusted according to the status of the stored hydrogen storage device.

[0084] Furthermore, since a hydrogen production and filling system may contain multiple hydrogen storage devices—that is, a system may simultaneously have hydrogen storage devices in "empty," "half-full," and "full" states—it is necessary to add control over the state of the hydrogen production device to the hydrogen storage device side. Specifically, the control module is configured as follows:

[0085] When the percentage of hydrogen storage devices with remaining hydrogen falling within the first hydrogen level exceeds 100% minus the first percentage (e.g., 100% - 80% = 20%), the control module activates hydrogen production devices at or above the first percentage and disconnects the slave valves connected to all hydrogen storage devices with remaining hydrogen not falling within the first hydrogen level. The number of activated hydrogen production devices is greater than the number of hydrogen storage devices, thus increasing the hydrogen production capacity on the production side while prioritizing the charging needs of hydrogen storage devices in an "empty" state. Alternatively, when the percentage of hydrogen storage devices with remaining hydrogen not falling within the first hydrogen level exceeds 100% minus the first percentage (e.g., 100% - 80% = 20%), the module can be configured to activate hydrogen production devices at or below the second percentage and charge all hydrogen storage devices equally.

[0086] When the hydrogen absorption rate of the hydrogen storage device is less than the hydrogen production rate of the activated hydrogen production device, it indicates that the hydrogen absorption of the current hydrogen storage alloy is saturated. Therefore, in order to save energy and prevent hydrogen from overflowing, all main valves are closed within a preset time period to wait for the prepared hydrogen to be filled into the hydrogen storage device, or the hydrogen production device activated at the fourth percentage (e.g., 90%) is shut down, leaving only a very small number of hydrogen production devices.

[0087] Furthermore, the hydrogen production and refueling system can include a cloud management platform and smart terminals. The cloud management platform communicates with the control module, which uploads operational information from the hydrogen production and refueling system. This information is then accessible to the cloud management platform. After the hydrogen storage information of the hydrogen storage devices is sent to the cloud management platform, the operators of the hydrogen storage devices can monitor the usage status of each hydrogen production and refueling system in real time. The smart terminals communicate with the control module, acquire the operational information of the hydrogen production and refueling systems, and display it to the user. Users can send hydrogen exchange requests through the smart terminals and remotely obtain the hydrogen storage status of the hydrogen storage devices within each hydrogen production and refueling system, facilitating timely hydrogen exchange.

[0088] In a preferred embodiment, it is understood that a large amount of heat will be generated during the hydrogen production and charging process (the low-pressure solid hydrogen storage alloy releases a large amount of heat when it absorbs hydrogen). Therefore, the hydrogen production and charging system also includes a cooling device (which may be in the form of a refrigeration air conditioner or a semiconductor cooling chip), installed in a housing space and in close contact with the outer surface of the hydrogen storage device, or the cooling medium outlet of the cooling device faces the hydrogen storage device, to cool the hydrogen storage device by conduction or convection.

[0089] To facilitate the physical fixation and management of hydrogen storage devices, a readable and writable chip can be installed on the device, recording its electronic identity and hydrogen-related data. Correspondingly, the hydrogen filling device is equipped with an information reader / writer capable of reading this chip. When a hydrogen storage device is inserted, the information reader / writer reads the chip to confirm its insertion. Upon confirmation, the filling device immediately or after a delay closes components used to seal the device, such as cabinet doors. The hydrogen storage device includes a digital identity (which may be part of the readable and writable chip), located inside or on its housing. When the filling device adds hydrogen, it records the amount added, and the information reader / writer reads the digital identity to obtain the device's identity information and remaining hydrogen quantity.

[0090] This invention also discloses a method for controlling hydrogen production and charging, comprising the following steps:

[0091] The hydrogen production and filling system is configured as follows, such that the hydrogen production and filling system includes:

[0092] A plurality of hydrogen production devices are placed in a containment space and produce hydrogen gas; a hydrogen filling device is placed in a containment space and is connected to the hydrogen outlet pipeline of the hydrogen production devices; a hydrogen storage device has a hydrogen storage space for storing hydrogen gas and is connected to the hydrogen filling device to store the hydrogen gas produced by the hydrogen production devices.

[0093] When the hydrogen charging device controls its own shutdown state, it controls any of the hydrogen production devices to charge any of the hydrogen storage devices with hydrogen.

[0094] It should be noted that the embodiments of the present invention have better implementability and are not intended to limit the present invention in any way. Any person skilled in the art may use the above-disclosed technical content to change or modify it into equivalent effective embodiments. However, any modifications or equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A hydrogen production and charging system, characterized in that, include: Multiple hydrogen production devices are placed in a containment space to produce hydrogen gas; A hydrogen charging device is placed in a accommodating space and is connected to the hydrogen outlet pipeline of the hydrogen production device; the hydrogen charging device includes a valve assembly connected between the hydrogen production device and the hydrogen storage device; the valve assembly includes a main valve group and a slave valve group; A hydrogen storage device, connected to the hydrogen filling device, stores hydrogen produced by the hydrogen production device; in The hydrogen charging device controls its own shutdown state to control any of the hydrogen production devices to charge any of the hydrogen storage devices with hydrogen; Also includes: The control module is electrically connected to the hydrogen production device, the hydrogen charging device, and the hydrogen storage device, respectively, to obtain the hydrogen production rate of the hydrogen production device, the hydrogen charging rate of the hydrogen charging device, and the current hydrogen quantity of the hydrogen storage device. The control module is also configured to: Obtain the remaining hydrogen quantity from hydrogen storage information; The remaining hydrogen content is compared with a preset hydrogen content standard, wherein the hydrogen content standard includes a first hydrogen content range of 0% to a first hydrogen content threshold, a second hydrogen content range of the first hydrogen content threshold to a second hydrogen content threshold, and a third hydrogen content range of the second hydrogen content threshold to 100%. When the remaining hydrogen quantity falls into the first hydrogen quantity range, the control module opens the main valve of the first percentage or more, and opens the slave valve connected to all hydrogen storage devices whose remaining hydrogen quantity falls into the first hydrogen quantity range. When the remaining hydrogen quantity falls into the second hydrogen quantity range, the control module opens the main valve for the second percentage and below, and opens the slave valve connected to all hydrogen storage devices whose remaining hydrogen quantity falls into the second hydrogen quantity range; When the remaining hydrogen quantity falls into the third hydrogen quantity range, the control module opens the main valve for the third percentage and below, and opens the slave valve connected to all hydrogen storage devices whose remaining hydrogen quantity falls into the second hydrogen quantity range; The control module is also configured to: When the proportion of hydrogen storage devices with remaining hydrogen falling into the first hydrogen range exceeds 100% minus the first percentage, the control module starts the hydrogen production devices with the first percentage or more, and disconnects the slave valves connected to all hydrogen storage devices with remaining hydrogen not falling into the first hydrogen range, wherein the number of hydrogen production devices started is greater than the number of hydrogen storage devices. When the hydrogen absorption rate of the hydrogen storage device is less than the hydrogen production rate of the activated hydrogen production device, all main valves shall be closed within a preset time period, or the activated hydrogen production device shall be shut down.

2. The hydrogen production and charging system as described in claim 1, characterized in that, The main valve group includes at least two main valves, and one end of each main valve is connected to at least one hydrogen production device. The valve group includes at least two slave valves, each slave valve having one end connected to a main valve and the other end connected to a hydrogen storage device; When any of the main valves is opened or closed in a controlled manner, the hydrogen outlet pipeline of the hydrogen production unit connected to it is opened or closed. When any of the valves is opened or closed in a controlled manner, the hydrogen charging pipeline of the hydrogen storage device connected thereto is opened or closed.

3. The hydrogen production and charging system as described in claim 2, characterized in that, The number of main valves is less than or equal to the number of slave valves; The main valve group and the slave valve group are connected in series, so that all the main valves are connected in parallel and all the slave valves are connected in parallel.

4. The hydrogen production and charging system as described in claim 1, characterized in that, The control module acquires the hydrogen storage information of the hydrogen storage device and the connection information with the hydrogen charging device. When the connection information with the hydrogen charging device is: when the connection with the hydrogen charging device is successful, the control module sends a start working command to the hydrogen production device to control the hydrogen production device to deliver hydrogen to the hydrogen charging device and to control the hydrogen charging device to charge hydrogen into the hydrogen storage device. The control module acquires the hydrogen storage information of the hydrogen storage device in real time, and sends a stop operation command to the hydrogen production device when the hydrogen storage information shows that it is full.

5. The hydrogen production and charging system as described in claim 1, characterized in that, Also includes: A cloud management platform communicates with the control module to obtain the operating information of the hydrogen production and filling system. The hydrogen storage information of the hydrogen storage device is sent to the cloud management platform; The hydrogen storage device includes: The digital identity is located inside or on the housing of the hydrogen storage device. When the hydrogen filling device fills the hydrogen storage device with hydrogen, the hydrogen filling device writes the amount of hydrogen to be filled, and the control module reads the digital identity to obtain the identity information and remaining hydrogen amount of the hydrogen storage device.

6. The hydrogen production and charging system as described in claim 5, characterized in that, Also includes: The intelligent terminal communicates with the control module to obtain the working information of the hydrogen production and filling system and present it to the user. A cooling device is attached to the outer surface of the hydrogen storage device, or the cooling medium outlet of the cooling device faces the hydrogen storage device, and cools the hydrogen storage device by conduction or convection.

7. A method for controlling the hydrogen production and charging system as described in claim 1, characterized in that, Includes the following steps: The hydrogen production and filling system is configured as follows, such that the hydrogen production and filling system includes: A plurality of hydrogen production devices are placed in a accommodating space and produce hydrogen gas; a hydrogen filling device is connected to the hydrogen outlet pipeline of the hydrogen production devices; The hydrogen storage device is connected to the hydrogen filling device and stores the hydrogen produced by the hydrogen production device; When the hydrogen charging device controls its own shutdown state, it controls any of the hydrogen production devices to charge any of the hydrogen storage devices with hydrogen.

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