Vanadium-based solid solution hydrogen storage alloy device high-safety bottle changing cabinet and bottle changing method

Abstract

The application belongs to the technical field of hydrogen energy, and provides a high-safety bottle changing cabinet and bottle changing method for a vanadium-based solid solution hydrogen storage alloy device. The high-safety bottle changing cabinet for the vanadium-based solid solution hydrogen storage alloy device comprises a cabinet body, a bottle storage assembly and an associated display assembly. The cabinet body comprises an electric control part, a containing part and a door body, the containing part is provided with a containing chamber, the door body comprises a main door and a plurality of sub-doors, and the sub-doors are installed on the main door. The bottle storage assembly is arranged in the containing chamber and comprises a bottle storage rack and a partition plate, the partition plate is located between the bottle storage rack and the door body, a plurality of guide openings are arranged on the partition plate, and the guide openings correspond to the sub-doors one by one. The associated display assembly comprises a plurality of associated display pieces, the associated display pieces comprise first light-emitting pieces and second light-emitting pieces, the first light-emitting pieces are arranged on the main door, and the second light-emitting pieces are arranged on the partition plate. The application can save cost, improve safety and provide convenience for operation and maintenance personnel.

Description

Technical Field

[0001] This application belongs to the field of hydrogen energy technology. Specifically, this application provides a high-safety bottle changing cabinet and bottle changing method for a vanadium-based solid solution hydrogen storage alloy device. Background Technology

[0002] Existing technologies for hydrogen cylinder exchange cabinets used in hydrogen-powered two-wheeled vehicles are mainly horizontally placed, which generally have the following problems: 1. The hydrogen storage cylinders are independent and form a closed structure. Once a hydrogen leak occurs, the hydrogen cannot be discharged in time. When there are a large number of hydrogen storage cylinders in the cylinder changing cabinet, the independent and closed structure will consume a lot of manufacturing materials, resulting in increased costs. 2. The hydrogen storage cylinder cavities are all opened and closed through the compartment doors, allowing users to put in or take out the hydrogen storage cylinders at a time. For staff who need to take out or replace hydrogen storage cylinders in batches, such operations are not only troublesome, but also consume a lot of time. 3. In equipment that integrates bottle changing and hydrogen filling, there are strict requirements for the orientation of the hydrogen storage cylinder. More often than not, the cylinder valve needs to face the inside of the receiving cavity, which causes inconvenience for users and staff when taking out and putting in the cylinder. Summary of the Invention

[0003] To at least partially solve the above-mentioned technical problems, this application provides a high-safety bottle-changing cabinet and bottle-changing method for a vanadium-based solid solution hydrogen storage alloy device.

[0004] In a first aspect, this application provides a high-safety bottle-changing cabinet for a vanadium-based solid solution hydrogen storage alloy device, comprising a cabinet body, a storage bottle assembly, and an associated display assembly; the cabinet body includes an electrical control unit, a housing section, and a door; the electrical control unit provides operational control; the housing section has a housing chamber with a top opening; the door includes a main door and multiple sub-doors; the main door covers the top opening of the housing chamber, and the sub-doors are installed on the main door; the storage bottle assembly is disposed within the housing chamber and includes a storage bottle rack and a partition plate; the storage bottle rack is used to place the vanadium-based solid solution hydrogen storage alloy device, and the vanadium-based solid solution hydrogen storage alloy device has a vanadium-based solid solution inside. The hydrogen storage cylinder is made of hydrogen storage alloy material. The partition plate is located between the storage cylinder rack and the door. The partition plate has multiple guide ports, each corresponding to a sub-door. The guide ports are used to guide the replacement of the hydrogen storage cylinder. The associated display component includes multiple associated display pieces. The guide ports, sub-doors, and associated display pieces are associated one-to-one. The associated display pieces are used to display the storage status of the corresponding guide ports and sub-doors. The associated display pieces include a first light-emitting element and a second light-emitting element associated with the display status. The first light-emitting element is disposed on the main door, and the second light-emitting element is disposed on the partition plate.

[0005] In some embodiments, the bottle rack includes a connector and a plurality of placement racks, the connector being connected to the plurality of placement racks respectively.

[0006] In some embodiments, the placement frame includes a first beam, a second beam, and a third beam. The first beam is connected to the second beam and the third beam, respectively. The second beam is located below the third beam. The third beam is provided with an adjustable limiting member. The adjustable limiting member includes a movable plate and two connecting rods. One end of each connecting rod is connected to the third beam, and the other end is away from the third beam. The movable plate is hinged to one of the connecting rods and snapped to the other connecting rod. The movable plate, the two connecting rods, and the third beam are used to jointly limit the circumferential movement of the hydrogen storage cylinder.

[0007] In some embodiments, the third beam is provided with a plurality of adjustable limiting members along its own length direction, and adjacent adjustable limiting members are staggered in the interval direction between the second beam and the third beam.

[0008] In some embodiments, the second beam is provided with a fixing limiting member, the open end of which is connected to the second beam, and the fixing limiting member and the second beam are used together to limit the circumferential position of the hydrogen storage cylinder.

[0009] In some embodiments, the second beam is provided with a bottom support portion, which is located below the fixing limiting member and is used to support the hydrogen storage cylinder.

[0010] In some embodiments, the second beam is provided with a plurality of fixed limiting members along its own length direction, and the fixed limiting members correspond one-to-one with the adjustable limiting members.

[0011] In some embodiments, the maximum distance between the fixed limiting member and the second beam is L1, and the maximum distance between the movable plate and the third beam is L2, where L1 ≥ L2.

[0012] In some embodiments, the accommodating chamber includes a first placement area and a second placement area, the volume of the first placement area being not less than the volume of the second placement area; the partition plate is provided with a partition portion, the partition portion dividing the plurality of guide ports into a plurality of first guide ports and a plurality of second guide ports, the first guide ports being used for the hydrogen storage cylinder to enter and exit the first placement area, and the second guide ports being used for the hydrogen storage cylinder to enter and exit the second placement area.

[0013] In some embodiments, the spacer plate is provided with a bottle sensor, and the bottle sensor corresponds one-to-one with the guide port.

[0014] In some embodiments, the spacer is detachably connected to the receiving portion.

[0015] In some embodiments, the main door includes a first door body and a second door body, wherein the first door body and the second door body are arranged opposite to each other.

[0016] In some embodiments, when projected along the direction of picking up and placing the hydrogen storage cylinder, the center of the guide port coincides with the center of the sub-door, and the angle between the line connecting the two and the bottom wall of the accommodating chamber ranges from 45° to 90°.

[0017] In some embodiments, the cabinet has a fireproof wall panel and two steel plate layers, with the fireproof layer located between the two steel plate layers and filled with foam material.

[0018] In some embodiments, the surface of the wall panel is provided with a protective layer, the material of which is lead-free epoxy resin.

[0019] In some embodiments, the electronic control unit includes a controller, an interaction component, and a safety component; the interaction component is connected to the controller and is used to interact with external signals; the safety component is connected to the controller and is used to improve the safety of the containment chamber; the interaction component includes a barcode scanner and a display, the barcode scanner is used to scan a QR code, and the display is used to display status information and / or information interaction; the safety component includes a hydrogen concentration sensor and a hydrogen emission module, the hydrogen concentration sensor is used to detect the hydrogen concentration in the containment chamber, and the hydrogen emission module is used to release hydrogen from the containment chamber.

[0020] In some embodiments, the electronic control unit further includes an alarm element connected to the controller for issuing an alarm.

[0021] In some embodiments, the electronic control unit further includes a weighing component connected to the controller for weighing the hydrogen storage cylinder.

[0022] In some embodiments, the electrical control unit and the accommodating unit are arranged side by side in the horizontal direction; the cabinet also includes a protective cover, which is located above the electrical control unit and the accommodating unit.

[0023] In some embodiments, the angle between the shield and the horizontal plane is an acute angle.

[0024] In some embodiments, the bottom wall of the accommodating part is provided with a communication port, which is used to connect the accommodating chamber with the outside.

[0025] In some embodiments, the connection port is covered with a protective net.

[0026] Secondly, this application provides a bottle-changing method applied to the high-safety bottle-changing cabinet of the vanadium-based solid solution hydrogen storage alloy device, comprising: Different display modes for the associated display components are set according to the different storage states of the hydrogen storage cylinders under the sub-gate; The system unlocks the permissions of the main door and the sub-door in response to the operation and maintenance personnel's operation, and unlocks the permissions of the sub-door in response to the user's operation. Change the display status of the associated display item to guide the maintenance personnel or the user to complete the bottle replacement operation.

[0027] In some embodiments, different display modes of the associated display component are set for different storage states of the hydrogen storage cylinder under the sub-gate, including: the display is off when there is no hydrogen storage cylinder under the sub-gate; the display is always on when the hydrogen storage cylinder is stored under the sub-gate, and is always red when an empty hydrogen storage cylinder is stored, and always green when a full hydrogen storage cylinder is stored.

[0028] In some embodiments, changing the display state of the associated display component to guide the maintenance personnel or the user to complete the bottle replacement operation includes: The associated display component changes from being constantly lit to flashing, guiding the user to empty the hydrogen storage cylinder and / or the maintenance personnel to empty the hydrogen storage cylinder. Once completed, the associated display component turns off. The associated display component changes from off to flashing, guiding the user to empty the hydrogen storage cylinder and / or the maintenance personnel to fill the hydrogen storage cylinder. After completion, the associated display component becomes constantly lit.

[0029] Analysis shows that, compared with the prior art, the advantages and beneficial effects of this application are as follows: In the high-safety bottle-changing cabinet of the vanadium-based solid solution hydrogen storage alloy device of this application, the hydrogen storage bottles are fixed by partition plates and storage racks, eliminating the need for separate spaces for each hydrogen storage bottle, thus saving costs. Furthermore, hydrogen leaks can be discharged immediately, improving safety. The opening and closing of sub-doors standardizes user operations, while the opening and closing of the main door facilitates batch bottle changing for maintenance personnel, simplifying operations and saving time. Moreover, the associated first and second light-emitting components are linked, providing operational prompts to maintenance personnel even when they open the main door for bottle changing, thus enhancing their convenience.

[0030] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A structural schematic diagram of a high-safety bottle changing cabinet for a vanadium-based solid solution hydrogen storage alloy device according to some embodiments of this application, from one perspective. Figure 2 This is a structural schematic diagram of the high-safety bottle changing cabinet of the vanadium-based solid solution hydrogen storage alloy device according to some embodiments of this application from another perspective. Figure 3 This is a schematic diagram of the internal structure of the high-safety bottle changing cabinet of the vanadium-based solid solution hydrogen storage alloy device according to some embodiments of this application; Figure 4 This is a schematic diagram of the installation of the door on the cabinet according to some embodiments of this application; Figure 5 This is a schematic diagram of the installation of the partition plate on the cabinet according to some embodiments of this application; Figure 6 This is a schematic diagram of the installation of the bottle rack on the cabinet according to some embodiments of this application; Figure 7 This is a schematic diagram of the structure of the placement rack according to some embodiments of this application; Figure 8 This is a schematic diagram of the structure of the adjustable limiting member in some embodiments of this application; Figure 9 This is a schematic flowchart illustrating the bottle-changing method of some embodiments of this application.

[0032] The reference numerals in the detailed embodiments are as follows: 1-Electrical control unit; 11-Controller; 12-Scanning device; 13-Display; 14-Hydrogen concentration sensor; 15-Hydrogen exhaust module; 16-Alarm device; 2-Containment unit; 21-Containment chamber; 211-First placement area; 212-Second placement area; 3-Door; 31-Main door; 311-First door; 312-Second door; 32-Sub-door; 4-Protective cover; 5-Storage bottle rack; 51-Placement rack; 511-First 512-Second beam; 5121-Bottom support; 513-Third beam; 514-Adjustable limiting component; 5141-Connecting rod; 5142-Modible plate; 515-Fixed limiting component; 52-Connecting component; 6-Spacing plate; 61-Guide port; 611-First guide port; 612-Second guide port; 62-Spacing section; 7-Associated display component; 71-First light-emitting component; 72-Second light-emitting component; 8-Hydrogen storage cylinder. Detailed Implementation

[0033] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0035] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0036] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0037] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0038] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two groups).

[0039] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 the embodiments of this application 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 the embodiments of this application.

[0040] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0041] The hydrogen storage cylinder is the component of a hydrogen-powered two-wheeler for storing hydrogen. The hydrogen is stored in the cylinder using a vanadium-based hydrogen storage alloy material (hydrogen is stored in the vanadium-based alloy material at room temperature and released when heated; the entire process is reversible and controllable). Refilling the storage cylinder takes time. To improve convenience, the hydrogen-powered two-wheeler can be quickly refilled by replacing the storage cylinder (removing the empty cylinder and installing a full one).

[0042] This application provides a high-safety bottle-changing cabinet and bottle-changing method for a vanadium-based solid solution hydrogen storage alloy device, which is used in conjunction with a hydrogen-powered two-wheeled vehicle for changing hydrogen storage cylinders.

[0043] Please refer to Figures 1 to 8 , Figure 1 A structural schematic diagram of a high-safety bottle changing cabinet for a vanadium-based solid solution hydrogen storage alloy device according to some embodiments of this application, from one perspective. Figure 2 This is a structural schematic diagram of the high-safety bottle changing cabinet of the vanadium-based solid solution hydrogen storage alloy device according to some embodiments of this application from another perspective. Figure 3 This is a schematic diagram of the internal structure of the high-safety bottle changing cabinet of the vanadium-based solid solution hydrogen storage alloy device according to some embodiments of this application; Figure 4 This is a schematic diagram of the installation of the door on the cabinet according to some embodiments of this application; Figure 5 This is a schematic diagram of the installation of the partition plate on the cabinet according to some embodiments of this application; Figure 6 This is a schematic diagram of the installation of the bottle rack on the cabinet according to some embodiments of this application; Figure 7 This is a schematic diagram of the structure of the placement rack according to some embodiments of this application; Figure 8 This is a schematic diagram of the structure of an adjustable limiting member according to some embodiments of this application.

[0044] In one aspect, this application provides a high-safety bottle-changing cabinet for a vanadium-based solid solution hydrogen storage alloy device, including a cabinet body, a storage bottle assembly, and an associated display assembly. The cabinet body includes an electrical control unit 1, a housing 2, and a door 3. The electrical control unit 1 provides operational control. The housing 2 has a housing chamber 21 with a top opening. The door 3 includes a main door 31 and multiple sub-doors 32. The main door 31 covers the top opening of the housing chamber 21, and the sub-doors 32 are installed on the main door 31. The storage bottle assembly is disposed within the housing chamber 21 and includes a storage bottle rack 5 and a partition plate 6. The storage bottle rack 5 is used to place the vanadium-based solid solution hydrogen storage alloy device, which is a hydrogen storage bottle 8 containing vanadium-based solid solution hydrogen storage alloy material inside. The partition plate 6 is located between the storage bottle rack 5 and the door 3, and the partition plate 6 has multiple guide ports 61, each corresponding to a sub-door 32. The guide ports 61 are used to guide the replacement of the hydrogen storage bottle 8. The associated display component includes multiple associated display pieces 7. The guide port 61, sub-door 32 and associated display piece 7 correspond one-to-one. The associated display piece 7 is used to display the storage status of the corresponding guide port 61 and sub-door 32. The associated display piece 7 includes a first light-emitting element 71 and a second light-emitting element 72 that are associated with the display status. The first light-emitting element 71 is set on the main door 31 and the second light-emitting element 72 is set on the partition plate 6.

[0045] The main door 31 can be hinged to the receiving part 2 at one end and connected to the receiving part 2 via an electronic lock at the other end, thereby locking and unlocking under the control of the electronic control unit 1. There can be one or more main doors 31. The sub-doors 32 can be hinged to the main door 31 at one end and connected to the main door 31 via an electronic lock at the other end, thereby locking and unlocking under the control of the electronic control unit 1.

[0046] Inside the storage chamber 21, a partition plate 6 and a storage bottle rack 5 are arranged sequentially from top to bottom. The guide port 61 of the partition plate 6 can provide an insertion position for the hydrogen storage bottle 8. At the same time, after the hydrogen storage bottle 8 is inserted, the partition plate 6 can provide a limiting position in the circumferential direction of the hydrogen storage bottle 8. The storage bottle rack 5 can provide a fixed position for the placement of the hydrogen storage bottle 8 below the partition plate 6.

[0047] The sub-door 32 and the guide port 61 have a one-to-one correspondence. The hydrogen storage cylinder 8 can be placed on the storage cylinder rack 5 after passing through the sub-door 32 and the corresponding guide port 61. For each corresponding sub-door 32 and guide port 61, an associated display element 7 is provided. The first light-emitting element 71 is provided on the main door 31 to display the storage status corresponding to the sub-door 32, and the second light-emitting element 72 is provided on the partition plate 6 to display the storage status corresponding to the guide port 61. The display status of the first light-emitting element 71 and the second light-emitting element 72 is always consistent.

[0048] In this embodiment, only the storage of hydrogen storage cylinder 8 is provided; the filling of hydrogen storage cylinder 8 is not provided. When placing or removing hydrogen storage cylinder 8, it is convenient to operate by holding the end of hydrogen storage cylinder 8 near the valve, making cylinder replacement easier. This embodiment is intended for two types of users: users and maintenance personnel. Users typically need to replace cylinders (removing a full hydrogen storage cylinder 8 and placing an empty hydrogen storage cylinder 8), occasionally involving only removing a full hydrogen storage cylinder 8, only placing an empty hydrogen storage cylinder 8, or the number of cylinders removed and placed during replacement being inconsistent. Maintenance personnel typically need to replace cylinders during maintenance (removing an empty hydrogen storage cylinder 8 and placing a full hydrogen storage cylinder 8), occasionally involving only removing an empty hydrogen storage cylinder 8, only placing a full hydrogen storage cylinder 8, or the number of cylinders removed and placed during maintenance replacement being inconsistent. In this application, a full hydrogen storage cylinder 8 (full cylinder) means that the hydrogen storage cylinder 8 is filled with hydrogen, and an empty hydrogen storage cylinder 8 (empty cylinder) means that the hydrogen in the hydrogen storage cylinder 8 has been consumed.

[0049] In this embodiment, different modes can be set for different target audiences. Taking a user changing bottles as an example, after the user interacts with the electronic control unit 1, one sub-door 32 opens, allowing the user to place an empty hydrogen storage cylinder 8 inside, and another sub-door 32 opens, allowing the user to retrieve a full hydrogen storage cylinder 8. Taking maintenance personnel changing bottles as an example, maintenance personnel typically need to change bottles in batches. After the maintenance personnel interact with the electronic control unit 1, the main door 31 opens, allowing the maintenance personnel to take out multiple empty hydrogen storage cylinders 8 and place multiple full hydrogen storage cylinders 8 inside.

[0050] In the technical solution of this application embodiment, the hydrogen storage cylinder 8 is fixed by the partition plate 6 and the storage cylinder rack 5, eliminating the need to set up an independent space for each hydrogen storage cylinder 8, which can save costs, and hydrogen leakage can be discharged immediately; the opening and closing of the sub-door 32 can standardize user operation; the opening and closing of the main door 31 facilitates batch cylinder replacement by maintenance personnel, which can simplify the operation of maintenance personnel and save time. In addition, the first light-emitting element 71 and the second light-emitting element 72 corresponding to the associated display element 7 are associated, and can still provide operation prompts to maintenance personnel when they open the main door 31 to replace the cylinder.

[0051] like Figure 3 and Figure 7 As shown, according to some embodiments of this application, optionally, the bottle rack 5 includes a connector 52 and a plurality of placement racks 51, the connector 52 being connected to the plurality of placement racks 51 respectively.

[0052] The connector 52 can be fixedly connected to the placement rack 51 (e.g., by welding or riveting) or detachably connected to the placement rack 51 (e.g., by snap-fit ​​or by bolting).

[0053] For example, the connectors 52 are arranged in pairs and have guide grooves facing each other. The placement rack 51 can slide along the guide grooves. The placement rack 51 is provided with bolts, which abut against the connectors 52 to fix the placement rack 51 to the connectors 52. In this way, the number of placement racks 51 in the storage rack 5 can be adjusted to adapt to different bottle changing needs (more placement racks 51 are set when placed in areas with high bottle changing needs, such as busy urban roads, and fewer placement racks 51 are set when placed in areas with low bottle changing needs, such as sparsely populated roads), thus enhancing flexibility. It is worth noting that the partition plate 6 needs to match the storage rack 5. When adjusting the storage rack 5, the corresponding partition plate 6 must be used so that the number of guide ports 61 corresponds to the number and position of the hydrogen storage cylinders 8 that the storage rack 5 can hold.

[0054] In the technical solution of this application embodiment, the integrated bottle rack 5 formed by connecting the connector 52 and multiple placement racks 51 has an open structure, is lightweight, simple in structure, easy to manufacture, and can reduce material costs and improve safety.

[0055] like Figure 7 and Figure 8 As shown, according to some embodiments of this application, optionally, the placement rack 51 includes a first beam 511, a second beam 512, and a third beam 513. The first beam 511 is connected to the second beam 512 and the third beam 513 respectively. The second beam 512 is located below the third beam 513. An adjustable limiting member 514 is provided on the third beam 513. The adjustable limiting member 514 includes a movable plate 5142 and two connecting rods 5141. One end of the connecting rod 5141 is connected to the third beam 513, and the other end is away from the third beam 513. The movable plate 5142 is hinged to one connecting rod 5141 and snapped to the other connecting rod 5141. The movable plate 5142, the two connecting rods 5141, and the third beam 513 are used to jointly limit the circumferential movement of the hydrogen storage cylinder 8.

[0056] For example, the second beam 512 and the third beam 513 are arranged in parallel, and the first beam 511 is connected to both the second beam 512 and the third beam 513. The connecting rod 5141 can be a threaded rod, which is connected to the third beam 513 by a threaded connection. The distance between the movable plate 5142 and the third beam 513 can be adjusted by controlling the length of the threaded connection. The two connecting rods 5141 are arranged in parallel, and the movable plate 5142 is connected to the end of the two connecting rods 5141 away from the third beam 513. The movable plate 5142 is a straight plate (without bending), so that the third beam 513, the two connecting rods 5141, and the movable plate 5142 form a rectangular limiting profile, providing a limit for the hydrogen storage cylinder 8.

[0057] Furthermore, the partition plate 6 serves to prevent dust and block foreign objects during use. The partition plate 6 is detachably connected to the receiving part 2, facilitating easy opening and closing by maintenance personnel. For example, the partition plate 6 can be installed inside the receiving part 2 via bolts, or it can be corner- and / or edge-attached to the side wall of the receiving part 2 (a support block can be provided on the side wall of the receiving part 2 to support the partition plate 6). In this embodiment, the angle at which the hydrogen storage cylinder 8 is replaced is not limited, and there are various implementation methods. For example, the hydrogen storage cylinder 8 can be placed or removed along an inclined direction (where the axis of the hydrogen storage cylinder 8 forms an acute angle with the horizontal plane), or it can be placed or removed along a vertical direction (where the axis of the hydrogen storage cylinder 8 is vertically set). When replacing the cylinder along an inclined direction, for full-state hydrogen storage cylinders 8 with lengths such as 400mm, 450mm, 500mm, 550mm, and 600mm, due to their large weight, they are prone to deviation when tilted into the placement rack 51 from the guide port 61, making them impossible to place. At this time, the maintenance personnel can open the partition plate 6, open the movable plate 5142 (rotate the movable plate 5142 to disengage the movable plate 5142 from the connecting rod 5141), place the hydrogen storage cylinder 8, close the movable plate 5142 (rotate the movable plate 5142 to engage the movable plate 5142 with the connecting rod 5141), and close the partition plate 6, thereby realizing the placement of the hydrogen storage cylinder 8.

[0058] In the technical solution of this application embodiment, the movable plate 5142 of the adjustable limiting member 514 can be opened and closed, which makes it convenient for maintenance personnel to put in the heavy hydrogen storage cylinder 8, thereby effectively improving the convenience of operation for maintenance personnel.

[0059] Furthermore, in this embodiment, the third beam 513 is provided with a plurality of adjustable limiting members 514 along its own length direction, and adjacent adjustable limiting members 514 are staggered in the interval direction between the second beam 512 and the third beam 513. That is, on the third beam 513, the adjacent adjustable limiting members 514 are staggered in height, which can reduce the space occupied and thereby increase the density of the hydrogen storage cylinder 8.

[0060] like Figure 7 As shown, according to some embodiments of this application, optionally, a fixing limiting member 515 is provided on the second beam 512, the open end of the fixing limiting member 515 is connected to the second beam 512, and the fixing limiting member 515 and the second beam 512 are used to jointly limit the circumferential position of the hydrogen storage bottle 8.

[0061] For example, the fixing limiting member 515 is U-shaped, with its open end connected to the second beam 512, and its bent section is arc-shaped, thereby forming a circumferential limiting on the hydrogen storage cylinder 8. The fixing limiting member 515 can be formed by bending a rod, which eliminates dead angles and stress concentration risks after bending, thus improving reliability.

[0062] Furthermore, in this embodiment, the second beam 512 is provided with a plurality of fixed limiting members 515 along its own length direction. The fixed limiting members 515 correspond one-to-one with the adjustable limiting members 514. A corresponding adjustable limiting member 514 and a fixed limiting member 515 form a placement position for a hydrogen storage bottle 8, so that each placement rack 51 can hold a plurality of hydrogen storage bottles 8.

[0063] like Figure 7 As shown, according to some embodiments of this application, optionally, the maximum distance between the fixed limiting member 515 and the second beam 512 is L1, and the maximum distance between the movable plate 5142 and the third beam 513 is L2, where L1≥L2.

[0064] That is, in this embodiment, the distance between the movable plate 5142 and the third beam 513 can be greater than the maximum distance between the fixed limiting member 515 and the second beam 512, or it can be equal to the maximum distance between the fixed limiting member 515 and the second beam 512.

[0065] In the technical solution of this application embodiment, L1≥L2, which makes it easier to insert the fixed limiting member 515 into the hydrogen storage bottle 8 when the adjustable limiting member 514 can be inserted, thus simplifying the operation.

[0066] Furthermore, in this embodiment, the second beam 512 is provided with a base support 5121, which is located below the fixed limiting member 515 and is used to support the hydrogen storage bottle 8, thereby providing axial limiting for the hydrogen storage bottle 8 and providing support for the hydrogen storage bottle 8 instead of the bottom plate of the accommodating part 2. The guide port 61, the adjustable limiting member 514, and the fixed limiting member 515 provide three supports in the circumferential direction of the hydrogen storage bottle 8, while the base support 5121 provides one support in the axial direction of the hydrogen storage bottle 8. Together, they can improve the reliability of the placement of the hydrogen storage bottle 8.

[0067] like Figure 1 and Figure 5 As shown, according to some embodiments of this application, optionally, the accommodating chamber 21 includes a first placement area 211 and a second placement area 212, the volume of the first placement area 211 is not less than the volume of the second placement area 212; the partition plate 6 is provided with a partition portion 62, the partition portion 62 divides the plurality of guide ports 61 into a plurality of first guide ports 611 and a plurality of second guide ports 612, the first guide ports 611 are used for the hydrogen storage bottle 8 to enter and exit the first placement area 211, and the second guide ports 612 are used for the hydrogen storage bottle 8 to enter and exit the second placement area 212.

[0068] For example, the volume of the first placement area 211 can be equal to the volume of the second placement area 212. In this case, the first placement area 211 can be used exclusively for placing full bottles (so that users can take full bottles from there), and the second placement area 212 can be used exclusively for users to put in empty bottles.

[0069] For example, the volume of the first placement area 211 can be greater than the volume of the second placement area 212. In this case, the first placement area 211 is used for bottle replacement, and the second placement area 212 is used for users to put in only empty bottles.

[0070] Ideally, the hydrogen exchange cabinet should be used for exchanging hydrogen cylinders, that is, removing a full hydrogen cylinder 8 and simultaneously placing an empty hydrogen cylinder 8 inside. However, in actual use, requirements vary, such as placing only empty cylinders without removing full cylinders, or placing more empty cylinders than full cylinders. Specifically addressing this situation, this embodiment is designed with a solution that allows the extra empty cylinders to be placed in the second placement area 212 via the second guide port 612.

[0071] Optionally, according to some embodiments of this application, a bottle sensor is provided on the partition plate 6, and the bottle sensor corresponds one-to-one with the guide port 61. The bottle sensor is connected to the electronic control unit 1 (controller 11) and can sense in real time whether there is a hydrogen storage bottle 8 at the corresponding guide port.

[0072] For example, the bottle sensor can be a proximity switch.

[0073] like Figure 4 As shown, according to some embodiments of this application, optionally, the main door 31 includes a first door body 311 and a second door body 312, with the first door body 311 and the second door body 312 being configured to open opposite each other.

[0074] Both the first door body 311 and the second door body 312 are hinged to the receiving part 2 at opposite ends. The lengths of the first door body 311 and the second door body 312 from one hinged end to the other can be the same or different.

[0075] For example, the first door body 311 and the second door body 312 are of the same specifications, which can improve the interchangeability of components.

[0076] For example, the first door 311 covers the first placement area 211, and the second door 312 covers the second placement area 212. Opening the first door 311 allows operation of the hydrogen storage bottle 8 in the first placement area 211, and opening the second door 312 allows operation of the hydrogen storage bottle 8 in the second placement area 212.

[0077] In the technical solution of this application embodiment, the first door 311 and the second door 312 are arranged to open opposite each other, which can reduce the space required to open the main door 31, improve safety, and simplify the volume of the bottle changing cabinet (for example, when the cabinet is equipped with a protective cover 4, the protective cover 4 can be lower, reducing the space occupied by the cabinet).

[0078] According to some embodiments of this application, optionally, when projected along the direction of taking out and placing the hydrogen storage bottle 8, the center of the guide port 61 coincides with the center of the sub-door 32, and the angle between the line connecting the two and the bottom wall of the accommodating chamber 21 ranges from 45° to 90°.

[0079] In this embodiment, when projected along the direction of picking up and placing the hydrogen storage bottle 8, the outer contour of the guide port 61 is located within the outer contour of the sub-gate 32.

[0080] In this embodiment, the hydrogen storage cylinder 8 can be placed vertically (in which case the cylinder rack 5 and the partition plate 6 are parallel to the bottom wall of the accommodating chamber 21), or it can be placed at an angle (in which case the cylinder rack 5 and the partition plate 6 form an acute angle with the bottom wall of the accommodating chamber 21). The angle between the axis of the hydrogen storage cylinder 8 and the bottom wall of the accommodating chamber 21 can be any value among 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, and 90°, or any intermediate value between any two of the aforementioned values.

[0081] In the technical solution of this application embodiment, the hydrogen storage bottle 8 can be placed vertically or at an angle. The partition plate 6 and the storage bottle rack 5 can cooperate to prevent the hydrogen storage bottle 8 from tipping over. Compared with placing the hydrogen storage bottle 8 horizontally (which requires grabbing the bottle body in the horizontal direction), this embodiment is simpler to change the bottle and conforms to the habit of carrying the hydrogen storage bottle 8 by hand.

[0082] According to some embodiments of this application, optionally, the cabinet has a fireproof layer on the wall panel and two steel plate layers, with the fireproof layer located between the two steel plate layers. The fireproof layer is filled with foam material, which can improve fire resistance and explosion-proof performance; the steel plate layers can be made of cold-rolled steel plates, thereby improving structural strength and fire resistance.

[0083] Furthermore, the wall panel surface is provided with a protective layer made of lead-free epoxy resin, which is sprayed onto the inner and outer surfaces of the wall panel to increase its resistance to chemical corrosion.

[0084] like Figure 6 As shown, according to some embodiments of this application, optionally, the electronic control unit 1 includes a controller 11, an interaction component, and a safety component. The interaction component is connected to the controller 11 and is used to exchange signals with the outside world; the safety component is connected to the controller 11 and is used to improve the safety of the containment chamber 21. The interaction component includes a barcode scanner 12 and a display 13. The barcode scanner 12 is used to scan a QR code, and the display 13 is used to display status information and / or information interaction. The safety component includes a hydrogen concentration sensor 14 and a hydrogen emission module 15. The hydrogen concentration sensor 14 is used to detect the hydrogen concentration in the containment chamber 21, and the hydrogen emission module 15 is used to discharge hydrogen from the containment chamber 21.

[0085] The controller 11 is connected to the barcode scanner 12, the display 13, the hydrogen concentration sensor 14, the hydrogen exhaust module 15, the electronic lock of the main door 31, the electronic lock of the sub-door 32, the associated display component 7, and the bottle sensor, respectively, to provide operation control. Exemplarily, the electronic lock of the main door 31 and / or the electronic lock of the sub-door 32 is not limited to traditional electronic locks, but can also be a motor controlling the rotation of the main door 31 and the sub-door 32.

[0086] The barcode scanner 12 is used to confirm the basic information of the hydrogen storage cylinder 8 (to determine whether the hydrogen storage cylinder 8 can be placed in the exchange cabinet, or whether the hydrogen storage cylinder 8 meets the conditions for being taken out).

[0087] The display 13 is connected to the controller 11 and can display the storage quantity and status information of the hydrogen storage cylinders 8 (number of empty cylinders, number of full cylinders, etc.). When performing operations such as changing, retrieving, or placing cylinders, the display 13 screen can display corresponding information (e.g., "Please scan the code on the empty cylinder and place it in a predetermined location", "Please retrieve a full cylinder from a predetermined location", "Please remove the empty cylinder and scan the code", "Please scan the code on the full cylinder and place it in a predetermined location"). The controller 11 can be equipped with a wireless module for network connectivity, and the display 13 can be equipped with a touch screen or the controller 11 can be connected to operation buttons for users and maintenance personnel to input information and perform command operations for retrieving and placing cylinders (user places empty cylinder / places empty cylinder and retrieves full cylinder / retrieves full cylinder; maintenance personnel retrieves empty cylinder / retrieves empty cylinder and places full cylinder / places full cylinder).

[0088] When in use, users and maintenance personnel can obtain information such as the location of the bottle changing cabinet and the number of empty and full bottles inside through terminals such as mobile phones, laptops, and tablets after identity verification.

[0089] The hydrogen concentration sensor 14 is installed in the containment chamber 21 and connected to the controller 11. It can detect the hydrogen concentration in the containment chamber 21 in real time, so that the controller 11 can activate the hydrogen discharge module 15 or issue an alarm.

[0090] The hydrogen exhaust module 15 may include an exhaust fan and an exhaust pipe. The exhaust fan is located inside the containment chamber 21 and is connected to the controller 11. It can exhaust the gas inside the containment chamber 21 to the outside through the exhaust pipe, thereby achieving hydrogen exhaust. The hydrogen exhaust module 15 may be one or more.

[0091] In the technical solution of this application embodiment, the controller 11, the interaction component and the safety component work together to enable users and maintenance personnel to remotely check information, scan codes to confirm information, and perform interactive operations to pick up and put down bottles, thereby forming a complete bottle changing control; and by detecting hydrogen concentration, releasing hydrogen or issuing alarms, the safety during use can be improved.

[0092] Furthermore, in this embodiment, the electronic control unit 1 also includes an alarm element 16, which is connected to the controller 11 and is used to issue an alarm. For example, the alarm element 16 can be a buzzer alarm, capable of emitting sound and light to provide an alarm, alerting personnel that there is a hydrogen leak at this location.

[0093] According to some embodiments of this application, optionally, the electronic control unit 1 further includes a weighing component connected to the controller 11 for weighing the hydrogen storage cylinder 8.

[0094] The controller 11 determines whether the hydrogen storage cylinder 8 can be stored based on the weight measured by the weighing device. The diameter of the hydrogen storage cylinder 8 ranges from 50mm to 150mm, and the length ranges from 150mm to 600mm. Preferred diameters are 50mm, 60mm, 70mm, 82mm, and 110mm, and preferred lengths are 150mm, 200mm, 250mm, 300mm, 350mm, 400mm, 450mm, 500mm, 550mm, and 600mm. A single hydrogen storage cylinder 8 with a hydrogen content of 15g to 150g is acceptable for storage. For hydrogen storage cylinders 8 that do not meet the reference requirements or have significant deviations, the maximum deviation in the overall total weight must not exceed 7%; otherwise, they will not be accepted. In this embodiment, after the information of the hydrogen storage cylinder 8 is confirmed by scanning the code, it also needs to be weighed for secondary confirmation.

[0095] In addition, if the weight of hydrogen storage cylinder 8 exceeds the full weight of the corresponding specification after it is confirmed by scanning the code, then the actual specification of hydrogen storage cylinder 8 does not match the scanned information and it cannot be put in; if the weight of hydrogen storage cylinder 8 is close to the full weight of the corresponding specification after it is confirmed by scanning the code, then it is determined that the hydrogen storage cylinder 8 is suspected of having a fault, so that it can be further inspected during operation and maintenance.

[0096] In the technical solution of this application embodiment, the weighing device can weigh the hydrogen storage cylinder 8, thereby performing secondary confirmation of the information of the hydrogen storage cylinder 8, which can further improve the reliability of the operation.

[0097] like Figure 1 and Figure 4 As shown, according to some embodiments of this application, optionally, the electronic control unit 1 and the accommodating unit 2 are arranged side by side in the horizontal direction; the cabinet also includes a protective cover 4, which is located above the electronic control unit 1 and the accommodating unit 2, and can provide sunshade and rain protection for the electronic control unit 1 and the accommodating unit 2, thereby avoiding exposure to the sun and rain.

[0098] Furthermore, in this embodiment, the angle between the protective cover 4 and the horizontal plane is an acute angle, which facilitates rainwater dripping.

[0099] According to some embodiments of this application, optionally, the bottom wall of the accommodating part 2 is provided with a communication port for connecting the accommodating chamber 21 with the outside, thereby facilitating drainage and gas exchange with the outside.

[0100] Furthermore, in this embodiment, there can be multiple connecting ports, and the connecting ports are covered with protective netting to prevent attacks from animals such as snakes and rats.

[0101] Please refer to Figure 9 , Figure 9 This is a schematic flowchart illustrating the bottle-changing method of some embodiments of this application.

[0102] Secondly, this application provides a bottle-changing method for a high-safety bottle-changing cabinet of a vanadium-based solid solution hydrogen storage alloy device as described in the first aspect, comprising steps S110-S130.

[0103] S110. Set different display modes for associated display components 7 for different storage states of hydrogen storage cylinder 8 under sub-gate 32.

[0104] The hydrogen storage cylinder 8 under subgate 32 can have three storage states: no hydrogen storage cylinder 8, empty hydrogen storage cylinder 8, and full hydrogen storage cylinder 8. When the storage states are different, the corresponding display modes of the first light-emitting element 71 and the second light-emitting element 72 are different, for example, the brightness and / or color may be different.

[0105] S120: In response to the operation and maintenance personnel's operation, unlock the permissions of the main door 31 and the sub-door 32; in response to the user's operation, unlock the permissions of the sub-door 32.

[0106] After the object-oriented program interacts with the electrical control unit 1, the type of the object (user or maintenance personnel) can be identified. When identified as a maintenance personnel, the permissions of the main door 31 and the sub-door 32 are unlocked, and the maintenance personnel can open the main door 31 and the sub-door 32; when identified as a user, the unlocking permission of the main door 31 cannot be obtained.

[0107] S130. Change the display status of the associated display item 7 to guide maintenance personnel or users to complete the bottle replacement operation.

[0108] When the hydrogen storage bottle 8 needs to be placed and / or removed, the state of the first light-emitting element 71 and the second light-emitting element 72 changes, guiding the operation (removing and / or placing the bottle) at the corresponding guide port 61 or sub-door 32.

[0109] In the technical solution of this application embodiment, different display modes are set for different storage states of hydrogen storage cylinder 8, which can intuitively display the storage information of hydrogen storage cylinder 8; different permissions are unlocked for maintenance personnel and users, which can standardize the operation of users and provide convenience for the operation of maintenance personnel; the operation of changing the display state guides the bottle replacement operation, which further simplifies the operation difficulty, and the storage state of hydrogen storage cylinder 8 can be matched in real time after the state changes.

[0110] According to some embodiments of this application, optionally, different display modes of the associated display component 7 are set for different storage states of the hydrogen storage cylinder 8 under the sub-gate 32 (step S110), including: the display is not lit when there is no hydrogen storage cylinder 8 under the sub-gate 32; the display is always lit when there is a hydrogen storage cylinder 8 under the sub-gate 32, and the display is always red when there is an empty hydrogen storage cylinder 8, and always green when there is a full hydrogen storage cylinder 8.

[0111] When there is no hydrogen storage bottle 8 under sub-gate 32, the corresponding first light-emitting element 71 and the second light-emitting element 72 are not lit. "Not lit" can mean that neither the first light-emitting element 71 nor the second light-emitting element 72 emits light, or the brightness of the emitted light is lower than that when there is a hydrogen storage bottle 8. When the hydrogen storage bottle 8 stored under sub-gate 32 is empty, the corresponding first light-emitting element 71 and the second light-emitting element 72 both display a constant red light. When the hydrogen storage bottle 8 stored under sub-gate 32 is full, the corresponding first light-emitting element 71 and the second light-emitting element 72 both display a constant green light (the first light-emitting element 71 and the second light-emitting element 72 can both be LED beads).

[0112] In the technical solution of this application embodiment, the associated display component 7 displays off, constantly lit red, and constantly lit green, which can show the different storage states of the hydrogen storage bottle 8 under the sub-gate 32; the large color difference between red and green and the large difference in brightness between constantly lit and off help to identify them.

[0113] According to some embodiments of this application, optionally, changing the display state of the associated display component 7 to guide maintenance personnel or users to complete the bottle replacement operation (step S130) includes: S131-S132.

[0114] S131, the associated display component 7 changes from always on to flashing, guiding the user to retrieve the full hydrogen storage cylinder 8 and / or the maintenance personnel to retrieve the empty hydrogen storage cylinder 8. After completion, the associated display component 7 turns off.

[0115] When the user takes out a full bottle, the associated display component 7 changes from a solid green light to a flashing green light, and at the same time, the corresponding sub-door 32 opens, guiding the user to take out the full bottle through the corresponding sub-door 32. After the full bottle is taken out, the sub-door 32 closes, and the associated display component 7 turns off, thus showing that there is no hydrogen storage bottle 8 under this sub-door 32.

[0116] When maintenance personnel retrieve the empty bottle, the associated display component 7 changes from a solid red light to a flashing red light, guiding the maintenance personnel to retrieve the empty bottle at the corresponding location. After the empty bottle is retrieved, the associated display component 7 turns off, thus indicating that there is no hydrogen storage bottle 8 under this sub-gate 32.

[0117] When the number of hydrogen storage cylinders 8 that the maintenance personnel need to replace is small, they can operate through the corresponding sub-door 32 without opening the main door 31 (or they can open the main door 31 to operate directly); when the number of hydrogen storage cylinders 8 that the maintenance personnel need to replace is large, they should open the main door 31 to perform the corresponding operation.

[0118] S132, The associated display component 7 changes from off to flashing, guiding the user to empty the hydrogen storage cylinder 8 and / or the maintenance personnel to fill the hydrogen storage cylinder 8. After completion, the associated display component 7 becomes constantly lit.

[0119] When a user places an empty bottle, the associated display component 7 changes from off to flashing red, and the corresponding sub-door 32 opens, guiding the user to place the empty bottle into the corresponding sub-door 32. After the empty bottle is placed, the sub-door 32 closes, and the associated display component 7 turns to solid red, thus showing that an empty bottle is stored under this sub-door 32.

[0120] When the maintenance personnel fill the bottle, the associated display component 7 changes from off to flashing green, guiding the maintenance personnel to place the full bottle in the corresponding position. After the full bottle is placed, the associated display component 7 turns to solid green, thus showing that there is a full bottle stored under this sub-gate 32.

[0121] In this embodiment, steps S131 and S132 can be performed individually or sequentially. Performing step S131 individually guides users to take full bottles and maintenance personnel to take empty bottles. Performing step S132 individually guides users to put away empty bottles and maintenance personnel to put away full bottles. Performing steps S131 and S132 sequentially guides both users and maintenance personnel to exchange bottles (both involve taking bottles first and then putting them away).

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A high-safety bottle-changing cabinet for a vanadium-based solid solution hydrogen storage alloy device, characterized in that, include: The cabinet includes an electrical control unit (1), a storage compartment (2), and a door (3). The electrical control unit (1) is used to provide operation control. The storage compartment (2) has a storage chamber (21) with a top opening. The door (3) includes a main door (31) and multiple sub-doors (32). The main door (31) covers the top opening of the storage chamber (21), and the sub-doors (32) are installed on the main door (31). The storage bottle assembly, located in the accommodating chamber (21), includes a storage bottle rack (5) and a partition plate (6). The storage bottle rack (5) is used to place a vanadium-based solid solution hydrogen storage alloy device. The vanadium-based solid solution hydrogen storage alloy device is a hydrogen storage bottle (8) with vanadium-based solid solution hydrogen storage alloy material inside. The partition plate (6) is located between the storage bottle rack (5) and the door (3). The partition plate (6) is provided with multiple guide ports (61). The guide ports (61) correspond one-to-one with the sub-door (32). The guide ports (61) are used to guide the replacement of the hydrogen storage bottle (8). The associated display component includes multiple associated display pieces (7). The guide port (61), the sub-door (32), and the associated display piece (7) correspond one-to-one. The associated display piece (7) is used to display the storage status of the corresponding guide port (61) and the sub-door (32). The associated display piece (7) includes a first light-emitting element (71) and a second light-emitting element (72) associated with the display status. The first light-emitting element (71) is disposed on the main door (31), and the second light-emitting element (72) is disposed on the partition plate (6).

2. The high-safety bottle changing cabinet of the vanadium-based solid solution hydrogen storage alloy device according to claim 1, characterized in that, The bottle rack (5) includes a connector (52) and a plurality of placement racks (51), wherein the connector (52) is connected to the plurality of placement racks (51) respectively; The placement rack (51) includes a first beam (511), a second beam (512) and a third beam (513). The first beam (511) is connected to the second beam (512) and the third beam (513) respectively. The second beam (512) is located below the third beam (513). The third beam (513) is provided with an adjustable limiting member (514). The adjustable limiting component (514) includes a movable plate (5142) and two connecting rods (5141). One end of the connecting rod (5141) is connected to the third beam (513), and the other end is away from the third beam (513). The movable plate (5142) is hinged to one of the connecting rods (5141) and snapped to the other connecting rod (5141). The movable plate (5142), the two connecting rods (5141), and the third beam (513) are used together to limit the circumferential position of the hydrogen storage cylinder (8). Preferably, the third beam (513) is provided with a plurality of adjustable limiting members (514) along its own length direction, and adjacent adjustable limiting members (514) are staggered in the interval direction between the second beam (512) and the third beam (513).

3. The high-safety bottle changing cabinet of the vanadium-based solid solution hydrogen storage alloy device according to claim 2, characterized in that, The second beam (512) is provided with a fixed limiting member (515), the open end of the fixed limiting member (515) is connected to the second beam (512), and the fixed limiting member (515) and the second beam (512) are used to jointly limit the circumferential position of the hydrogen storage bottle (8). The second beam (512) is provided with a bottom support (5121), which is located below the fixed limiting member (515) and is used to support the hydrogen storage cylinder (8). Preferably, the second beam (512) is provided with a plurality of fixed limiting members (515) along its own length direction, and the fixed limiting members (515) correspond one-to-one with the adjustable limiting members (514); the maximum distance between the fixed limiting member (515) and the second beam (512) is L1, and the maximum distance between the movable plate (5142) and the third beam (513) is L2, where L1≥L2.

4. The high-safety bottle changing cabinet of the vanadium-based solid solution hydrogen storage alloy device according to claim 1, characterized in that, The storage room (21) includes a first placement area (211) and a second placement area (212), wherein the volume of the first placement area (211) is not less than the volume of the second placement area (212); The partition plate (6) is provided with a partition (62), which divides the plurality of guide ports (61) into a plurality of first guide ports (611) and a plurality of second guide ports (612). The first guide ports (611) are used for the hydrogen storage bottle (8) to enter and exit the first placement area (211), and the second guide ports (612) are used for the hydrogen storage bottle (8) to enter and exit the second placement area (212).

5. The high-safety bottle changing cabinet of the vanadium-based solid solution hydrogen storage alloy device according to claim 1, characterized in that, The partition plate (6) is provided with a bottle body sensor, and the bottle body sensor corresponds one-to-one with the guide port (61); The partition plate (6) is detachably connected to the accommodating part (2); The main door (31) includes a first door body (311) and a second door body (312), wherein the first door body (311) and the second door body (312) are arranged opposite to each other; Projecting along the direction of taking and placing the hydrogen storage bottle (8), the center of the guide port (61) coincides with the center of the sub-door (32), and the angle between the line connecting the two and the bottom wall of the accommodating chamber (21) is between 45° and 90°. Preferably, the cabinet has a fireproof wall panel and two steel plate layers, with the fireproof layer located between the two steel plate layers and filled with foam material; the wall panel surface is provided with a protective layer, the material of which is lead-free epoxy resin.

6. The high-safety bottle changing cabinet of the vanadium-based solid solution hydrogen storage alloy device according to claim 1, characterized in that, The electrical control unit (1) includes a controller (11), an interaction component, and a safety component; the interaction component is connected to the controller (11) and is used to interact with external signals; the safety component is connected to the controller (11) and is used to improve the safety of the accommodating room (21); The interactive components include a barcode scanner (12) and a display (13). The barcode scanner (12) is used to scan a QR code, and the display (13) is used to display status information and / or information interaction. The safety components include a hydrogen concentration sensor (14) and a hydrogen venting module (15). The hydrogen concentration sensor (14) is used to detect the hydrogen concentration in the containment chamber (21), and the hydrogen venting module (15) is used to vent the hydrogen from the containment chamber (21). Preferably, the electronic control unit (1) further includes an alarm component (16), which is connected to the controller (11) and is used to issue an alarm; the electronic control unit (1) further includes a weighing component, which is connected to the controller (11) and is used to weigh the hydrogen storage cylinder (8).

7. The high-safety bottle changing cabinet of the vanadium-based solid solution hydrogen storage alloy device according to claim 1, characterized in that, The electronic control unit (1) and the accommodating unit (2) are arranged side by side in the horizontal direction; The bottom wall of the accommodating part (2) is provided with a communication port, which is used to connect the accommodating chamber (21) with the outside. The cabinet also includes a protective cover (4), which is located above the electrical control unit (1) and the accommodating unit (2); Preferably, the angle between the protective cover (4) and the horizontal plane is an acute angle; the connecting port is covered with a protective net.

8. A bottle-changing method, applied to the high-safety bottle-changing cabinet of the vanadium-based solid solution hydrogen storage alloy device according to any one of claims 1 to 7, characterized in that, include: Different display modes of the associated display component (7) are set for different storage states of the hydrogen storage bottle (8) under the sub-gate (32); The permissions of the main gate (31) and the sub-gate (32) are unlocked in response to the operation of the maintenance personnel, and the permissions of the sub-gate (32) are unlocked in response to the operation of the user; Change the display status of the associated display component (7) to guide the maintenance personnel or the user to complete the bottle replacement operation.

9. The bottle-changing method according to claim 8, characterized in that, Different display modes of the associated display component (7) are set for different storage states of the hydrogen storage bottle (8) under the sub-gate (32), including: When there is no hydrogen storage bottle (8) under the sub-gate (32), the light is off; when the hydrogen storage bottle (8) is stored under the sub-gate (32), the light is always on, and when the hydrogen storage bottle (8) is empty, the light is always red, and when the hydrogen storage bottle (8) is full, the light is always green.

10. The bottle-changing method according to claim 8, characterized in that, Changing the display state of the associated display component (7) to guide the maintenance personnel or the user to complete the bottle replacement operation includes: The associated display component (7) changes from being constantly lit to flashing, guiding the user to take the hydrogen storage cylinder (8) when it is full and / or the maintenance personnel to take the hydrogen storage cylinder (8) when it is empty. After completion, the associated display component (7) turns off. The associated display component (7) changes from off to flashing, guiding the user to empty the hydrogen storage cylinder (8) and / or the maintenance personnel to fill the hydrogen storage cylinder (8). After completion, the associated display component (7) becomes constantly lit.

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