Multi-tank rapid butt joint and atmosphere cooperative control system suitable for magnesium-based solid hydrogen storage material

Abstract

The invention belongs to the technical field of hydrogen energy storage and transportation, and relates to a multi-tank rapid butt joint and atmosphere cooperative control system suitable for a magnesium-based solid hydrogen storage material. The system is composed of a multi-path quick plug type interface bus, an index valve terminal, a double-layer main channel, a hollow cavity, a dynamic atmosphere regulation and control module and a butt joint guiding and anti-vibration assembly. A plurality of paths of quick plug type interface buses are in detachable airtight connection with hydrogen storage tanks, quick switching among multiple tanks is realized by utilizing selective opening of index valve islands, and oxygen and water contents in interfaces and channels are maintained within a ppm level range in a whole process by combining an inert barrier constructed by a double-layer main channel and a hollow cavity. The butt joint guiding and anti-vibration assembly effectively absorbs butt joint errors and reduces vibration transmission, and pulverization of the sheet-shaped magnesium-based solid hydrogen storage material is avoided. The system can be used in cooperation with a spiral conveying type solid material transfer device to form a complete solid storage and transportation system, and has the advantages of being reasonable in structure, safe, reliable and capable of achieving modular expansion.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of hydrogen energy storage and transportation and device engineering, and particularly relates to a multi-tank rapid docking and atmosphere coordination control system suitable for magnesium-based solid-state hydrogen storage materials, which can realize safe, sealed and low-disturbance coupling between the hydrogen storage tank group and the solid-state material transfer device. BACKGROUND

[0002] Magnesium-based solid-state hydrogen storage materials are widely studied and applied due to their high hydrogen storage capacity and abundant resources. However, such materials usually exist in the form of sheets or particles, have the characteristics of easy pulverization and sensitivity to vibration, and are extremely easy to cause particle breakage due to external disturbance during storage, transportation and transfer, thereby causing performance degradation of the materials and safety hazards of dust. In the prior art, a single tank is directly connected to the transfer device. This mode has the following disadvantages: firstly, the number of hydrogen storage tanks increases, and the interface needs to be frequently disassembled and assembled, which causes the interface area to be repeatedly exposed, and brings risks of water and oxygen pollution and hydrogen leakage; secondly, the interface generally lacks effective atmosphere isolation measures, and cannot maintain ppm level cleanliness during multiple switching processes; and thirdly, the rigidity of the docking mechanism is too large, and cannot absorb deviations and vibrations, which poses a potential damage risk to sheet materials. Therefore, there is an urgent need for a system device that can realize rapid switching and stable connection of multiple hydrogen storage tanks while maintaining the cleanliness of the atmosphere. SUMMARY

[0003] The purpose of the present application is to provide a multi-tank rapid docking and atmosphere coordination control system suitable for magnesium-based solid-state hydrogen storage materials, to solve the problems of atmosphere pollution caused by repeated disassembly and assembly of the interface, large disturbance in the switching process, and easy pulverization of sheet materials under vibration conditions in the prior art.

[0004] To achieve the above technical purposes and effects, the present application provides the following technical solutions:

[0005] A multi-tank rapid docking and atmosphere coordination control system suitable for magnesium-based solid-state hydrogen storage materials, comprising a multi-path quick plug-in interface bus, an index valve island, a double-layer main channel and a hollow cavity, a dynamic atmosphere regulation module, and a docking guide and anti-vibration assembly.

[0006] The multi-path quick plug-in interface bus is used to form a detachable airtight connection with the hydrogen storage tank, so as to realize the docking of the hydrogen storage tank and the transfer device.

[0007] The index valve island is connected with each branch of the multi-path quick plug-in interface bus, has a selective opening function and an interlocking logic, and is used to realize rapid switching between multiple hydrogen storage tanks and to avoid cross-gas and pressure fluctuation.

[0008] The double-layer main channel is composed of inner and outer two-layer pipes, the hollow cavity is connected with a vacuum pump and an inert gas source, and the two form a regional inert barrier in cooperation.

[0009] The dynamic atmosphere control module is used to stably control the oxygen and water content of the interface and the double-layer main channel area to below 1 ppm, and the peak value of atmosphere disturbance during the switching process does not exceed 5 ppm, and recovers to below 1 ppm within 30 seconds.

[0010] The docking guide and vibration damping components are used to absorb docking errors and reduce vibration transmission to prevent the sheet-like magnesium-based solid hydrogen storage material from pulverizing.

[0011] This system can be used in conjunction with a spiral conveyor solid material transfer device to form a complete solid storage and transportation system.

[0012] Furthermore, the multi-channel quick-connect interface bus is arranged axially or circumferentially and has multiple independent branches; each branch is equipped with a pluggable male and female connector and a mechanical locking mechanism, which is linked to a position sensor; the outer end of the connector of the multi-channel quick-connect interface bus is also equipped with a sealed door to isolate the internal and external atmosphere in the non-dating state.

[0013] Furthermore, the index valve island adopts an electric valve array structure, allowing only one or two branches to be opened at the same time; a dual-valve isolation unit and a bypass purge valve are provided between the branches of the multi-way quick-connect interface bus and the hydrogen storage tank. The dual-valve isolation unit is composed of a main valve and a secondary valve connected in series. The bypass purge valve is connected in parallel to the interface micro-area between the main valve and the secondary valve. The bypass purge valve is connected to the vacuum pump and the inert gas source through the purge pipeline, and is used to evacuate and replace the interface micro-area with inert gas before and after docking or separation.

[0014] Furthermore, the double-layer main channel is composed of inner and outer tubes, and the hollow cavity is directly connected to the vacuum pump and inert gas source. Through the synergistic effect of vacuuming and filling with inert gas, the double-layer main channel and the hollow cavity together form a regionalized inert barrier.

[0015] Furthermore, the dynamic atmosphere control module includes a vacuum pump, an inert gas supply source, a pressure sensor, and a water-oxygen sensor. The dynamic atmosphere control module can stably control the oxygen and water content in the interface and the double-layer main channel area to below 1 ppm, and the peak value of atmosphere disturbance during the switching process does not exceed 5 ppm, and can recover to the set level below 1 ppm within 30 seconds. When a pressure fluctuation exceeding ±5% or an oxygen content increase exceeding 2 ppm is detected, the dynamic atmosphere control module triggers the index valve island to close the current branch valve and starts the inert gas flooding.

[0016] Furthermore, the docking guide and vibration damping assembly includes a floating guide cone, a flexible compensation pipe, and a vibration damping support; the flexible compensation pipe can absorb 2–10 mm of axial displacement and ±2° of angular deviation, and the vibration damping support can limit the peak acceleration of the interface area to within 0.5g (g is the acceleration due to gravity, with a value of 9.81 m / s²).

[0017] Furthermore, the plug-in male and female connectors adopt a double-layer sealing structure, with an outer layer of fluororubber sealing ring and an inner layer of metal elastic sealing sheet; the mechanical locking mechanism includes radial claws and a spiral locking element.

[0018] Furthermore, the sealed door is opened after the hydrogen storage tank is connected to the multi-channel quick-connect interface bus and closed after the transfer is completed.

[0019] On the other hand, the present invention also provides a method for safely switching magnesium-based solid hydrogen storage materials between a hydrogen storage tank and a transfer device using the above-mentioned system, comprising the following steps:

[0020] (1) Connect the hydrogen storage tank to the target branch via the multi-channel quick-connect interface bus and lock it in place;

[0021] (2) Activate the dynamic atmosphere control module to perform vacuuming and inert gas replacement on the interface and main channel until the oxygen and water content drops below 1 ppm;

[0022] (3) Open the target branch valve of the index valve island, close the non-target branch valve, and open the interface hatch;

[0023] (4) Material transfer is performed under the constraints of docking guides and vibration damping components;

[0024] (5) Close the hatch and perform interface micro-area purging, then unlock and separate the docking.

[0025] Furthermore, the replacement process in step (2) consists of at least three rounds of alternating vacuuming and inert gas filling.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. By cooperating with the interface bus and the index valve island, rapid switching between hydrogen storage tank groups and transfer devices can be achieved, reducing the risk of contamination caused by repeated disassembly and reassembly of the interface;

[0028] 2. By combining a double-layer main channel and hollow cavity with dynamic atmosphere control, a regionalized inert barrier is formed, which can maintain ppm-level cleanliness during docking and switching processes;

[0029] 3. By using a dual-valve isolation and bypass purging unit, local purification is performed before and after the interface is disconnected or connected, reducing switching disturbances;

[0030] 4. By using floating guides and vibration damping structures, deviations are absorbed and vibrations are suppressed, ensuring the stability of the sheet material structure;

[0031] 5. The system can be seamlessly integrated with the screw conveyor transfer device in terms of interface size and control logic to form a complete magnesium-based solid storage and transportation system. Attached Figure Description

[0032] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the system of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of the multi-channel quick-connect interface bus of the present invention;

[0035] Figure 3 This is a schematic diagram of the index valve island of the present invention;

[0036] Figure 4 This is a schematic diagram of the dynamic atmosphere control module of the present invention;

[0037] Figure 5 This is a schematic diagram of the docking guide and vibration damping assembly of the present invention;

[0038] The diagram is labeled as follows: 1. Multi-channel quick-connect interface bus; 11. Male and female plug-in connector; 12. Mechanical locking mechanism; 13. Sealed hatch; 2. Index valve island; 21. Dual-valve isolation unit; 211. Main valve; 212. Secondary valve; 22. Bypass purge valve; 23. Interface micro-zone; 24. Purge pipeline; 3. Double-layer main channel and hollow cavity; 4. Dynamic atmosphere control module; 41. Vacuum pump; 42. Inert gas source; 43. Pressure sensor; 44. Water and oxygen sensor; 5. Docking guide and vibration damping assembly; 51. Floating guide cone; 52. Flexible compensation pipe; 53. Vibration damping support; 6. Hydrogen storage tank; 7. Transfer device. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] A multi-tank rapid docking and atmosphere coordination control system suitable for magnesium-based solid hydrogen storage materials includes a multi-channel quick-connect interface bus (1), an index valve island (2), a double-layer main channel and a hollow cavity (3), a dynamic atmosphere control module (4), and docking guide and vibration damping components (5).

[0041] The multi-channel quick-connect interface bus (1) is used to form a detachable and airtight connection with the hydrogen storage tank (6) to realize the docking of the hydrogen storage tank (6) and the transfer device (7);

[0042] The index valve island (2) is connected to each branch of the multi-way quick-connect interface bus (1), and has selective opening function and interlock logic to realize rapid switching between multiple hydrogen storage tanks and avoid cross-gas leakage and pressure fluctuation.

[0043] The double-layer main channel and hollow cavity (3) consists of two inner and outer tubes. The hollow cavity in the double-layer main channel and hollow cavity (3) is connected to the vacuum pump (41) and the inert gas source (42), and the two work together to form a regional inert barrier.

[0044] The dynamic atmosphere control module (4) is used to stably control the oxygen and water content of the interface and the double-layer main channel area to below 1ppm, and the peak value of atmosphere disturbance during the switching process does not exceed 5ppm, and recovers to below 1ppm within 30 seconds;

[0045] The docking guide and vibration damping component (5) is used to absorb docking errors and reduce vibration transmission, and to prevent the sheet-like magnesium-based solid hydrogen storage material from pulverizing.

[0046] This system can be used in conjunction with a spiral conveyor solid material transfer device (7) to form a complete solid storage and transportation system.

[0047] Furthermore, the multi-channel quick-connect interface bus (1) is arranged axially or circumferentially and has multiple independent branches; each branch is provided with a pluggable male and female connector (11) and a mechanical locking mechanism (12), the mechanical locking mechanism (12) being linked with a pressure sensor (43); the outer end of the connector of the multi-channel quick-connect interface bus (1) is also provided with a sealed door (13) for isolating the internal and external atmospheres in the non-dating state.

[0048] Furthermore, the index valve island (2) adopts an electric valve array structure, allowing only one or two branches to be opened at the same time; the branches of the multi-way quick-connect interface bus (1) are provided with a dual-valve isolation unit (21) and a bypass purge valve (22) between the hydrogen storage tank (6). The dual-valve isolation unit (21) is composed of a main valve (211) and a secondary valve (212) connected in series. The bypass purge valve (22) is connected in parallel to the interface micro-area (23) between the main valve (211) and the secondary valve (212). The bypass purge valve (22) is connected to the vacuum pump (41) and the inert gas source (42) through the purge pipeline (24) and is used to evacuate the interface micro-area (23) and replace it with inert gas before and after docking or separation.

[0049] Furthermore, the double-layer main channel and hollow cavity (3) are composed of inner and outer tubes. The hollow cavity is directly connected to the vacuum pump (41) and the inert gas source (42). Through the synergistic effect of vacuuming and filling with inert gas, the double-layer main channel and the hollow cavity together form a regional inert barrier.

[0050] Furthermore, the dynamic atmosphere control module (4) includes a vacuum pump (41), an inert gas supply source (42), a pressure sensor (43), and a water-oxygen sensor (44); the dynamic atmosphere control module (4) can stably control the oxygen content and water content of the interface and the double-layer main channel area to below 1ppm, and the peak value of the atmosphere disturbance during the switching process does not exceed 5ppm, and can recover to the set level below 1ppm within 30 seconds; when the pressure fluctuation exceeds ±5% or the oxygen content rises by more than 2ppm, the dynamic atmosphere control module (4) triggers the index valve island (2) to close the current branch valve and start the inert gas flooding.

[0051] Furthermore, the docking guide and vibration damping assembly (5) includes a floating guide cone (51), a flexible compensation pipe (52), and a vibration damping support (53); the flexible compensation pipe (52) can absorb axial displacement of 2–10 mm and angular deviation of ±2°, and the vibration damping support (53) can limit the peak acceleration of the interface area to within 0.5g.

[0052] Furthermore, the plug-in male and female connector (11) adopts a double-layer sealing structure, with an outer layer of fluororubber sealing ring and an inner layer of metal elastic sealing sheet; the mechanical locking mechanism (12) includes radial claws and a spiral locking element.

[0053] Furthermore, the sealed door (13) is opened after the hydrogen storage tank is connected to the multi-channel quick-connect interface bus (1) and closed after the transfer is completed.

[0054] On the other hand, the present invention also provides a method for safely switching magnesium-based solid hydrogen storage materials between a hydrogen storage tank and a transfer device using the system described in claim 1, comprising the following steps:

[0055] (1) Connect the hydrogen storage tank (6) to the target branch through the multi-channel quick-connect interface bus (1) and lock it in place;

[0056] (2) Start the dynamic atmosphere control module (4) to perform vacuuming and inert gas replacement on the interface and main channel until the oxygen and water content drops below 1 ppm;

[0057] (3) Open the target branch valve of the index valve island (2), close the non-target branch valve, and open the interface hatch;

[0058] (4) Material transfer is carried out under the constraints of docking guide and vibration damping components (5);

[0059] (5) Close the hatch and perform interface micro-area purging, then unlock and separate the docking.

[0060] Furthermore, the replacement process in step (2) consists of at least three rounds of alternating vacuuming and inert gas filling.

[0061] The invention will now be further described with reference to the accompanying drawings.

[0062] like Figure 1 As shown, the multi-tank rapid docking and atmosphere coordination control system of the present invention includes a multi-channel quick-connect interface bus 1, an index valve island 2, a double-layer main channel and a hollow cavity 3, a dynamic atmosphere control module 4, and a docking guide and vibration damping component 5.

[0063] The multi-channel quick-connect interface bus 1 is arranged laterally, and multiple hydrogen storage tanks 6 are connected to it through independent branches. Each branch is equipped with a male / female plug-in connector 11 and a mechanical locking mechanism 12, such as... Figure 2 As shown. The connector 11 employs a double-layer sealing structure, with an outer fluororubber sealing ring and an inner metal elastic sealing sheet, ensuring both flexible fit and high-pressure sealing. The mechanical locking mechanism 12 includes radial claws and a helical locking element, and is linked to the pressure sensor 43 to ensure reliable locking. A sealed hatch 13 is provided at the outer end of the connector, which closes in the non-docked state to isolate the internal and external atmospheres.

[0064] like Figure 3 As shown, a dual-valve isolation unit 21 and a bypass purge valve 22 are installed between the interface and the hydrogen storage tank. The dual-valve isolation unit 21 consists of a main valve 211 and a secondary valve 212 connected in series, forming a double barrier. The bypass purge valve 22 is connected in parallel to the interface micro-area 23 between the main valve and the secondary valve, and can perform local vacuuming and inert gas replacement before and after docking or separation. The purge pipeline 24 is connected to the vacuum pump 41 and the inert gas source 42.

[0065] like Figure 4 As shown, the docking guide and vibration damping assembly 5 includes a floating guide cone 51, a flexible compensation connector 52, and a vibration damping support 53. The floating guide cone 51 is used for automatic correction during the docking process, the flexible compensation connector 52 allows for axial compensation of 2–10 mm and angular deviation of ±2°, and the vibration damping support 53 limits the peak acceleration in the interface area to below 0.5g, thereby protecting the sheet-like magnesium-based solid hydrogen storage material from damage.

[0066] The double-layer main channel and hollow cavity 3 are connected to the vacuum pump 41 and the inert gas source 42. The hollow cavity forms an inert barrier under the action of vacuuming and inert gas filling. The dynamic atmosphere control module 4 consists of the vacuum pump 41, the inert gas source 42, the pressure sensor 43, and the water and oxygen sensor 44. It can realize the control process of vacuuming-inert gas filling-cyclic replacement and monitor the oxygen and water content in real time. When the oxygen or water content exceeds the set threshold, the system immediately closes the current branch valve of the index valve island 2 and starts the inert gas flooding to ensure system safety.

[0067] The operation steps are as follows:

[0068] The first step is to connect the target hydrogen storage tank 6 to the target branch of the interface bus 1 and lock it in place using the mechanical locking mechanism 12.

[0069] The second step is to activate the dynamic atmosphere control module 4 and perform no less than three rounds of alternating vacuuming and inert replacement operations on the interface area and main channel until the oxygen and water content is ≤1ppm.

[0070] Third, the index valve island 2 allows only the target branch to be opened, while the other branches remain closed, and at the same time the sealed hatch 13 is opened;

[0071] The fourth step involves transferring solid materials. During the transfer process, atmosphere and pressure parameters are monitored in real time, and an emergency shutdown is triggered if the deviation exceeds the limit.

[0072] Fifth step: After the transfer is completed, close the sealed hatch 13, purge the interface micro-area 23, and then unlock and separate it.

[0073] Example 1

[0074] like Figures 1 to 4 As shown in the figure, this embodiment provides an application process for a multi-tank rapid docking and atmosphere coordinated control system. The system consists of a multi-channel quick-connect interface bus 1, an index valve island 2, a double-layer main channel and a hollow cavity 3, a dynamic atmosphere control module 4, and docking guide and vibration damping components 5.

[0075] Under laboratory conditions, three hydrogen storage tanks 6 filled with sheet-like magnesium-based solid hydrogen storage material were selected and connected to the transfer device 7 via three branches of the interface bus 1. During the docking process, the hydrogen storage tanks and branches were connected via male and female plug-in connectors 11 and fixed by a mechanical locking mechanism 12. The sealed door 13 automatically opened after the connection was completed.

[0076] Before the operation begins, activate the dynamic atmosphere control module 4 to perform three rounds of alternating "vacuuming-argon filling" operations on the interface area and main channel, with a vacuum level ≤1×10⁻⁶ for each round. -2 After filling with inert gas, the oxygen and water content were measured and eventually stabilized below 1 ppm.

[0077] During this process, the index valve island 2 only allows the target branch valve to open, while other branches remain closed. During operation, when an axial misalignment of approximately 5 mm occurs at the hydrogen storage tank 6 docking point, the floating guide cone 51 and the flexible compensation connector 52 automatically compensate, ensuring reliable interface sealing.

[0078] Under the above conditions, the transfer of sheet-like magnesium-based solid hydrogen storage material was completed, and the transfer process lasted approximately 30 minutes. Test results showed no significant leakage at the interface area, the water and oxygen content remained ≤1 ppm throughout, and the sheet-like material did not exhibit significant pulverization or structural damage after transfer.

[0079] Example 2

[0080] Under dynamic simulation conditions, this embodiment verifies the system's performance during the switching process between multiple hydrogen storage tanks. The system consists of an interface bus 1, an index valve island 2, a double-layer main channel and a hollow cavity 3, a dynamic atmosphere control module 4, and docking guide and vibration damping components 5.

[0081] Six hydrogen storage tanks 6 are selected and connected to the transfer device 7 sequentially through the six branches of the interface bus 1. During the switching operation, whenever a hydrogen storage tank 6 is transferred, the index valve island 2 automatically closes the current branch and opens the valve of the next branch. The interface micro-area 23 completes vacuuming and inertial replacement through the dual-valve isolation unit 21 and the bypass purge valve 22.

[0082] At the moment of switching, the peak atmospheric disturbance is ≤5ppm and recovers to below 1ppm within 30 seconds. The system's dynamic atmosphere control module 4 monitors atmospheric and pressure changes in real time. When a pressure fluctuation exceeding ±5% or an oxygen content increase exceeding 2ppm is detected, the closing logic of the index valve island 2 is automatically triggered, and an inert gas flooding is initiated to ensure safety.

[0083] Under simulated vehicle vibration conditions (peak acceleration 1g), the vibration damping support 53 limited the actual acceleration in the interface area to below 0.5g, effectively suppressing damage to the sheet-like hydrogen storage material. After multiple cycles of switching, the transfer of the hydrogen storage tank group was successfully completed, and the material remained intact.

[0084] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0085] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-tank rapid docking and atmosphere coordination control system suitable for magnesium-based solid hydrogen storage materials, characterized in that, It includes a multi-channel quick-connect interface bus (1), an index valve island (2), a double-layer main channel and a hollow cavity (3), a dynamic atmosphere control module (4), and docking guide and vibration damping components (5); The multi-channel quick-connect interface bus (1) is used to form a detachable and airtight connection with the hydrogen storage tank (6) to realize the docking of the hydrogen storage tank (6) and the transfer device (7); The index valve island (2) is connected to each branch of the multi-way quick-connect interface bus (1), and has selective opening function and interlock logic to realize rapid switching between multiple hydrogen storage tanks and avoid cross-gas leakage and pressure fluctuation. The double-layer main channel and hollow cavity (3) consists of two inner and outer tubes. The hollow cavity in the double-layer main channel and hollow cavity (3) is connected to the vacuum pump (41) and the inert gas source (42), and the two work together to form a regional inert barrier. The dynamic atmosphere control module (4) is used to stably control the oxygen and water content of the interface and the double-layer main channel area to below 1ppm, and the peak value of atmosphere disturbance during the switching process does not exceed 5ppm, and recovers to below 1ppm within 30 seconds; The docking guide and vibration damping component (5) is used to absorb docking errors and reduce vibration transmission, thereby preventing the sheet-like magnesium-based solid hydrogen storage material from pulverizing. This system can be used in conjunction with a spiral conveyor solid material transfer device (7) to form a complete solid storage and transportation system.

2. The multi-tank rapid docking and atmosphere coordination control system for magnesium-based solid hydrogen storage materials according to claim 1, characterized in that, The multi-channel quick-connect interface bus (1) is arranged axially or circumferentially and has multiple independent branches; each branch is provided with a pluggable male and female connector (11) and a mechanical locking mechanism (12), the mechanical locking mechanism (12) is linked with the pressure sensor (43); the outer end of the connector of the multi-channel quick-connect interface bus (1) is also provided with a sealed door (13) for isolating the internal and external atmospheres in the non-dating state.

3. The multi-tank rapid docking and atmosphere coordination control system for magnesium-based solid hydrogen storage materials according to claim 1, characterized in that, The index valve island (2) adopts an electric valve array structure, allowing only one or two branches to be opened at the same time; the branches of the multi-way quick-connect interface bus (1) are provided with a dual-valve isolation unit (21) and a bypass purge valve (22) between the hydrogen storage tank (6). The dual-valve isolation unit (21) is composed of a main valve (211) and a secondary valve (212) connected in series. The bypass purge valve (22) is connected in parallel to the interface micro-area (23) between the main valve (211) and the secondary valve (212). The bypass purge valve (22) is connected to the vacuum pump (41) and the inert gas source (42) through the purge pipeline (24) and is used to evacuate the interface micro-area (23) and replace it with inert gas before and after docking or separation.

4. The multi-tank rapid docking and atmosphere coordination control system for magnesium-based solid hydrogen storage materials according to claim 1, characterized in that, The double-layer main channel and hollow cavity (3) consist of two inner and outer tubes. The hollow cavity is directly connected to the vacuum pump (41) and the inert gas source (42). Through the synergistic effect of vacuuming and filling with inert gas, the double-layer main channel and the hollow cavity together form a regional inert barrier.

5. The multi-tank rapid docking and atmosphere coordination control system for magnesium-based solid hydrogen storage materials according to claim 1, characterized in that, The dynamic atmosphere control module (4) includes a vacuum pump (41), an inert gas supply source (42), a pressure sensor (43), and a water-oxygen sensor (44). The dynamic atmosphere control module (4) can stably control the oxygen and water content of the interface and the double-layer main channel area to below 1ppm, and the peak value of the atmosphere disturbance during the switching process does not exceed 5ppm, and can recover to the set level below 1ppm within 30 seconds. When the pressure fluctuation exceeds ±5% or the oxygen content rises by more than 2ppm, the dynamic atmosphere control module (4) triggers the index valve island (2) to close the current branch valve and start the inert gas flooding.

6. The multi-tank rapid docking and atmosphere coordination control system for magnesium-based solid hydrogen storage materials according to claim 1, characterized in that, The docking guide and vibration damping assembly (5) includes a floating guide cone (51), a flexible compensation pipe (52), and a vibration damping support (53); the flexible compensation pipe (52) can absorb axial displacement of 2–10 mm and angular deviation of ±2°, and the vibration damping support (53) can limit the peak acceleration of the interface area to within 0.5g.

7. The multi-tank rapid docking and atmosphere coordination control system for magnesium-based solid hydrogen storage materials according to claim 2, characterized in that, The plug-in male and female connector (11) adopts a double-layer sealing structure, with an outer layer of fluororubber sealing ring and an inner layer of metal elastic sealing sheet; the mechanical locking mechanism (12) includes radial claws and spiral locking components.

8. The multi-tank rapid docking and atmosphere coordination control system for magnesium-based solid hydrogen storage materials according to claim 2, characterized in that, The sealed door (13) is opened after the hydrogen storage tank is connected to the multi-channel quick-connect interface bus (1) and closed after the transfer is completed.

9. A method for safely switching magnesium-based solid hydrogen storage materials between a hydrogen storage tank and a transfer device using the system described in claim 1, characterized in that, Includes the following steps: (1) Connect the hydrogen storage tank (6) to the target branch through the multi-channel quick-connect interface bus (1) and lock it in place; (2) Start the dynamic atmosphere control module (4) to perform vacuuming and inert gas replacement on the interface and main channel until the oxygen and water content drops below 1 ppm; (3) Open the target branch valve of the index valve island (2), close the non-target branch valve, and open the interface hatch; (4) Material transfer is carried out under the constraints of docking guide and vibration damping components (5); (5) Close the hatch and perform interface micro-area purging, then unlock and separate the docking.

10. The method according to claim 9, characterized in that, The replacement process in step (2) involves at least three rounds of alternating vacuuming and inert gas filling.

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