Modularized solid hydrogen storage power generation system

Abstract

The utility model provides a modularization solid state hydrogen storage power generation system, the modularization solid state hydrogen storage power generation system comprises a solid state hydrogen storage module, a fuel cell power generation module and a master control module, the solid state hydrogen storage module can provide hydrogen for the fuel cell power generation module, and the master control module can provide hydrogen for the fuel cell power generation module. The fuel cell power generation module converts hydrogen into electric energy for external power supply; the master control module is connected with the solid hydrogen storage module and the fuel cell power generation module; a channel used for ventilation and heat dissipation is arranged in the modular solid hydrogen storage power generation system. The fuel cell power generation module and the solid hydrogen storage module are both of an independent modular structure, the problem that the fuel cell power generation module is poor in operation stability is solved, the integration degree is high, and timely, accurate and effective control can be achieved; and the hydrogen leakage condition can be accurately detected, and the working state can be reasonably and effectively controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen energy, and in particular to a modular solid-state hydrogen storage power generation system. Background Art

[0002] Solid-state hydrogen storage technology has the advantages of high hydrogen storage capacity, low working pressure and good safety. Solid-state hydrogen storage technology can be widely used in various fixed, mobile and portable power sources, such as electric power-assisted bicycles, electric motorcycles, forklifts, sightseeing vehicles and backup power supplies.

[0003] The solid-state hydrogen storage power generation device in the prior art has the following problems in structure and system control:

[0004] 1. Solid-state hydrogen storage power generation devices are usually made into an integral structure according to the hydrogen consumption of the equipment. Although the integral solid-state hydrogen storage device structure can be directly and conveniently installed in the solid-state hydrogen storage power generation device, the integral solid-state hydrogen storage device has the problems of difficulty in transportation, difficulty in replacing, repairing and maintaining the hydrogen storage bottle and cumbersome operation.

[0005] 2. The solid-state hydrogen storage power generation device cannot effectively protect the fuel cell power generation system, which may easily lead to poor operating stability of the fuel cell power generation system. In addition, the fuel cell power generation system has a low degree of integration and cannot achieve timely, effective and accurate control.

[0006] 3. Hydrogen leakage occurs during the process of the solid-state hydrogen storage device supplying hydrogen to the fuel cell power generation system. The solid-state hydrogen storage power generation device cannot detect the hydrogen leakage well and reasonably and effectively control the working state of the power generation system.

[0007] Therefore, how to solve the above problems in a solid-state hydrogen storage power generation device is also a major technical difficulty that must be overcome in this field. Utility Model Content

[0008] The purpose of the utility model is to provide a modular solid-state hydrogen storage power generation system, in which the replacement, repair and maintenance of the hydrogen storage bottles of the modular solid-state hydrogen storage power generation system are simple and easy to implement, thereby overcoming and solving the problem of poor operating stability of the fuel cell power generation module and effectively controlling the working state of the modular solid-state hydrogen storage power generation system.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A modular solid-state hydrogen storage and power generation system, which is an integrated structure and includes a solid-state hydrogen storage module, a fuel cell power generation module and a general control module, wherein the solid-state hydrogen storage module can provide hydrogen to the fuel cell power generation module, and the fuel cell power generation module converts hydrogen into electrical energy for external power supply; the general control module is connected to both the solid-state hydrogen storage module and the fuel cell power generation module; and the modular solid-state hydrogen storage and power generation system has a channel for ventilation and heat dissipation.

[0011] Furthermore, in the above-mentioned modular solid-state hydrogen storage and power generation system, the modular solid-state hydrogen storage and power generation system also includes a shell, and the solid-state hydrogen storage module and the fuel cell power generation module are both installed in the shell, and the installation method of the solid-state hydrogen storage module and the fuel cell power generation module is a detachable connection; the fuel cell power generation module is located at the upper part, lower part or one side of the solid-state hydrogen storage module; there is a accommodating space in the shell or in the fuel cell power generation module, and the accommodating space is used to install the general control module.

[0012] Furthermore, in the above-mentioned modular solid-state hydrogen storage power generation system, the accommodating space within the fuel cell power generation module is located at the upper part of the fuel cell power generation module, and the detachable connection is at least one of bolt connection, snap connection, plug-in connection, splicing, and nested connection.

[0013] Furthermore, in the above-mentioned modular solid-state hydrogen storage power generation system, the solid-state hydrogen storage module includes a hydrogen storage module and a box body, the box body is provided with a pull-out guide rail matching the hydrogen storage module, the hydrogen storage module is installed in the box body through the pull-out guide rail, and several hydrogen storage modules are connected through connecting pipes; the hydrogen storage module is also connected to the box body by at least one auxiliary connection method of screw connection, card connection or plug-in connection; the vertical cross-section of the hydrogen storage module is one of rectangular, square, circular, triangular or polygonal.

[0014] Furthermore, in the above-mentioned modular solid-state hydrogen storage power generation system, a plurality of hydrogen storage modules are provided, and two adjacent hydrogen storage modules are connected by a connecting pipe; the connecting pipe is located on the same side of the solid-state hydrogen storage module, and the connecting pipe connects the plurality of hydrogen storage modules in series, in parallel, or in a series-parallel mixed manner; a hydrogen storage bottle is provided in the hydrogen storage module.

[0015] Further, in the above-mentioned modular solid-state hydrogen storage power generation system, the modular solid-state hydrogen storage power generation system also includes a hydrogen concentration sensor, which is connected to the general control module, and is used to check the concentration of hydrogen. The general control module is set with a slight leakage setting threshold range and a significant leakage setting threshold range of hydrogen concentration, the slight leakage setting threshold range is: 20% LFL<hydrogen concentration<50% LFL, and the significant leakage setting threshold range is: hydrogen concentration>50% LFL; one or more hydrogen concentration sensors are provided; when one hydrogen concentration sensor is provided, the hydrogen concentration sensor is installed in the solid-state hydrogen storage module; when two hydrogen concentration sensors are provided, one hydrogen concentration sensor is installed in the solid-state hydrogen storage module and the fuel cell power generation module; when more than two hydrogen concentration sensors are provided, one hydrogen concentration sensor is installed in each hydrogen storage module and the fuel cell power generation module.

[0016] Furthermore, in the above-mentioned modular solid-state hydrogen storage and power generation system, the modular solid-state hydrogen storage and power generation system also includes an exhaust fan, which is connected to the main control module. The exhaust fan is used to extract residual or leaked hydrogen in the modular solid-state hydrogen storage and power generation system and discharge it to the outside of the modular solid-state hydrogen storage and power generation system; the exhaust fan can cool down the interior of the modular solid-state hydrogen storage and power generation system; the main control module controls the operation of the exhaust fan according to the hydrogen concentration monitored by the hydrogen concentration sensor, and the exhaust fan can perform normal discharge or strong discharge. When the exhaust fan is in normal discharge, the operating power of the exhaust fan is less than 70% of the full power, and when the exhaust fan is in strong discharge, the exhaust fan runs at full power.

[0017] Furthermore, in the above-mentioned modular solid-state hydrogen storage power generation system, the modular solid-state hydrogen storage power generation system also includes a battery, which is arranged in the shell, and the battery is connected to both the fuel cell power generation module and the general control module. The battery serves as an auxiliary power supply for the fuel cell power generation module. The battery can provide starting power for the modular solid-state hydrogen storage power generation system, and the fuel cell power generation module can charge the battery.

[0018] Furthermore, in the above-mentioned modular solid-state hydrogen storage power generation system, the modular solid-state hydrogen storage power generation system also includes a first temperature sensor and a second temperature sensor, the first temperature sensor is used to detect the temperature of the hydrogen storage bottle in the hydrogen storage module, and the second temperature sensor is used to detect the ambient temperature in the modular solid-state hydrogen storage power generation system; the first temperature sensor and the second temperature sensor are both connected to the main control module; the fuel cell power generation module is provided with an intake solenoid valve and an exhaust solenoid valve.

[0019] Furthermore, in the above-mentioned modular solid-state hydrogen storage power generation system, the solid-state hydrogen storage module is provided with a pressure sensor, a pressure reducing valve and a pressure relief valve. When the pressure detected by the pressure sensor is greater than 10MPa, the pressure relief valve is used to automatically discharge hydrogen; the hydrogen in the solid-state hydrogen storage module passes through the pressure sensor and the pressure reducing valve in turn and enters the fuel cell power generation module.

[0020] It can be seen from the analysis that the utility model discloses a modular solid-state hydrogen storage power generation system, in which the solid-state hydrogen storage module is composed of a plurality of hydrogen storage bottle modules, so that the transportation of the solid-state hydrogen storage module becomes convenient, and the replacement, repair and maintenance of the hydrogen storage bottle are simple and easy to implement, thereby effectively improving the efficiency of transportation and replacement of the hydrogen storage bottle; the fuel cell power generation module and the solid-state hydrogen storage module are both independent modular structures, and the operation of the fuel cell power generation module will not be affected by external factors such as the environment or other supporting components, and the fuel cell power generation module can be well protected, thus overcoming and solving the problem of poor operating stability of the fuel cell power generation module, and the independent fuel cell power generation module has a high degree of integration, and can realize timely, precise and effective control; it can accurately detect whether there is any hydrogen leakage in the process of hydrogen supply from the solid-state hydrogen storage module to the fuel cell power generation module, and reasonably and effectively control the working state of the modular solid-state hydrogen storage power generation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0023] Figure 2 It is a structural schematic diagram of an embodiment of the utility model.

[0024] Figure 3 It is a structural schematic diagram of another embodiment of the utility model.

[0025] Figure 4 This is a schematic structural diagram of a solid-state hydrogen storage module according to an embodiment of the present utility model.

[0026] Figure 5 This is a working principle diagram of an embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of a solid-state hydrogen storage module according to an embodiment of the present utility model;

[0028] Figure 7This is a schematic diagram of the three-dimensional structure of a hydrogen storage module according to an embodiment of the utility model;

[0029] Figure 8 This is a schematic diagram of the internal three-dimensional structure of a hydrogen storage module according to an embodiment of the utility model;

[0030] Fig. 9 This is a schematic diagram of the top view of the hydrogen storage module according to one embodiment of the utility model;

[0031] Fig.10 for Fig. 9 Schematic diagram of the cross-sectional structure along the BB direction;

[0032] Fig.11 for Fig. 9 Schematic diagram of the cross-sectional structure along the AA direction;

[0033] Fig.12 The figure is a three-dimensional structural diagram of a gas circuit assembly according to an embodiment of the utility model.

[0034] Fig.13 This is a schematic diagram of the structure of hydrogen storage bottle modules stacked in space according to one embodiment of the utility model.

[0035] Fig.14 This is a flow chart of a control method according to an embodiment of the present invention.

[0036] Explanation of the reference numerals: 1 solid-state hydrogen storage module; 2 fuel cell power generation module; 3 main control module; 4 hydrogen storage module; 5 housing; 6 connecting pipe; 7 hydrogen concentration sensor; 8 exhaust fan; 9 battery; 10 first temperature sensor; 11 second temperature sensor; 12 pressure sensor; 13 pressure reducing valve; 14 pressure relief valve; 15 housing; 16 control valve; 17 hydrogen storage bottle; 18 accommodating portion; 19 storage bottle assembly; 20 heat exchange portion; 21 cover; 22 front end plate; 23 rear end plate; 24 mounting and fixing portion; 25 gas path assembly; 26 first fixing member; 27 second fixing member; 28 supporting portion; 29 first air outlet pipe; 30 second air outlet pipe; 31 third air outlet pipe; 32 fourth air outlet pipe; 33 port valve. DETAILED DESCRIPTION

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention includes such modifications and variations within the scope of the appended claims and their equivalents.

[0038] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components; they can be wired electrical connections, radio connections, or wireless communication signal connections. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0039] One or more examples of the utility model are shown in the attached drawings. The detailed description uses numbers and letters to refer to the features in the drawings. Similar or similar marks in the drawings and descriptions have been used to refer to similar or similar parts of the utility model. As used herein, the terms "first", "second", and "third" etc. are used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of individual components.

[0040] like Figures 1 to 14 As shown, according to an embodiment of the utility model, a modular solid-state hydrogen storage power generation system is provided, which belongs to an integrated structure. The integrated structure setting makes the overall volume of the modular solid-state hydrogen storage power generation system tend to be minimized, and the layout and arrangement of each component or part of the integrated structure are compact, not only can a single integrated structure of the solid-state hydrogen storage power generation system independently realize its function, but also facilitate control and operation. At the same time, each component or part of the modular solid-state hydrogen storage power generation system is also an integrated structure, such as the solid-state hydrogen storage module 1, the fuel cell power generation module 2, and the total control module 3 are all independent integrated structures. Similarly, the hydrogen storage module 4 located in the solid-state hydrogen storage module 1 and even the storage bottle assembly 19 constituting the hydrogen storage module 4 are also integrated structures. Therefore, the above-mentioned components or parts are highly interchangeable. For the same hydrogen supply, two or more modular solid-state hydrogen storage power generation systems with related functions, each component or part inside can be cross-replaced and used, thereby enhancing the interchangeability of each component or part. The structure of each component or part is consistent, which greatly improves the production efficiency. When some components or parts in the integrated structure are damaged and need to be replaced or repaired and maintained, the replacement parts are not only convenient for production, but also conducive to improving the efficiency of repair and maintenance. Figure 1As shown, the modular solid-state hydrogen storage power generation system includes a solid-state hydrogen storage module 1, a fuel cell power generation module 2 and a general control module 3, wherein the solid-state hydrogen storage module 1 can provide hydrogen for the fuel cell power generation module 2, and the fuel cell power generation module 2 converts hydrogen into electrical energy for external power supply; the general control module 3 is connected to both the solid-state hydrogen storage module 1 and the fuel cell power generation module 2; the modular solid-state hydrogen storage power generation system has a channel for ventilation and heat dissipation, and the channel runs through the interior of the modular solid-state hydrogen storage power generation system to ensure the normal operation of the modular solid-state hydrogen storage power generation system. The modular solid-state hydrogen storage power generation system combines and installs the solid-state hydrogen storage module 1 and the fuel cell power generation module 2 into a whole. The solid-state hydrogen storage module 1 and the fuel cell power generation module 2 that constitute the modular solid-state hydrogen storage power generation system are both independent modular structures, ensuring that the operation of the fuel cell power generation module 2 will not be affected by external factors such as the environment or other supporting components, and can well protect the fuel cell power generation module 2, overcome and solve the problem of poor operating stability of the fuel cell power generation module 2, and the independent fuel cell power generation module 2 has a high degree of integration, which can achieve timely, accurate and effective control.

[0041] Furthermore, the modular solid-state hydrogen storage power generation system also includes a housing 15, which can be a frame structure. The solid-state hydrogen storage module 1 and the fuel cell power generation module 2 are both installed in the housing 15, and the installation method of the solid-state hydrogen storage module 1 and the fuel cell power generation module 2 is a detachable connection. Preferably, the detachable connection is at least one of bolt connection, card connection, plug connection, splicing, and nesting. The fuel cell power generation module 2 is located at the upper part, lower part or one side of the solid-state hydrogen storage module 1. The fuel cell power generation module 2 can be located at any position of the solid-state hydrogen storage module 1 in space. The modular solid-state hydrogen storage power generation system has the characteristics of small size, small footprint, and easy to carry. The spatial position of the fuel cell power generation module 2 and the solid-state hydrogen storage module 1 can be adjusted according to the needs of the actual use environment, so as to adapt to various occasions where hydrogen energy power generation is required. For example, in a place with open space, the fuel cell power generation module 2 can be located on one side of the solid-state hydrogen storage module 1; for a place with narrow space, the fuel cell power generation module 2 can be located at the upper or lower part of the solid-state hydrogen storage module 1. By setting up the various parts of the modular solid-state hydrogen storage power generation system into a modular structure, it can be flexibly placed while achieving its functions, will not be restricted by the use of space, has a wider range of space options, and is more convenient for overall installation, transportation, repair and maintenance.

[0042] There is a containing space in the housing 15 or in the fuel cell power generation module 2, and the containing space is used to install the main control module, such as Figure 2 As shown, in one embodiment of the present invention, the fuel cell power generation module 2 is located on one side of the solid hydrogen storage module 1, and the accommodation space for installing the general control module 3 is located above the solid hydrogen storage module 1 and the fuel cell power generation module 2. Figure 3As shown, in another embodiment of the utility model, the accommodation space for installing the general control module 3 is located in the fuel cell power generation module 2, the general control module 3 is accommodated in the fuel cell power generation module 2, the general control module 3 and the fuel cell power generation module 2 are integrated, and an independent space (accommodation space) is provided in the fuel cell power generation module 2 for installing and fixing the general control module 3; or the fuel cell power generation module 2 has a space for installing and fixing the general control module 3. Such an arrangement makes the fuel cell power generation module 2 compact in structure, minimizes the volume of the fuel cell power generation module 2, and maximizes functional integration. At the same time, the modular solid-state hydrogen storage power generation system is divided into only two major parts: the solid-state hydrogen storage module 1 and the fuel cell power generation module 2, which is convenient for transportation and also more conducive to reasonably matching the amount of hydrogen used according to the needs of the user and his use environment. Preferably, as Figure 2 As shown, the accommodation space in the fuel cell power generation module 3 is located on the upper part of the fuel cell power generation module 2. Such a setting can ensure that the total control module 3 is always in a dry state. At the same time, placing the total control module 3 on the upper part of the fuel cell power generation module 2 is also in line with the principle of ergonomics and is convenient for repair and maintenance.

[0043] Furthermore, the solid-state hydrogen storage modules 1 are all connected to the fuel cell power generation module 2 through a gas pipeline, and the solid-state hydrogen storage module 1 is provided with a control valve 16. The solid-state hydrogen storage module 1 includes a hydrogen storage module 4 and a box 5, and a pull-out guide rail matching the hydrogen storage module 4 is provided in the box 5. The hydrogen storage module 4 is installed in the box 5 through the pull-out guide rail, that is, the pull-out guide rails matching each other are installed on the hydrogen storage module 4 and the box 5, respectively, so as to facilitate the removal and placement of the hydrogen storage module 4 from the box 5. The operation is simple and convenient, safe and reliable. Several hydrogen storage modules 4 are connected through connecting pipes 6, and several solid-state hydrogen storage modules 1 are spatially stacked in structure; the hydrogen storage module 4 is also connected to the box 5 by at least one auxiliary connection method of screw connection, card connection or plug-in connection to ensure that the hydrogen storage module 4 is stably and firmly installed in the box 5; such as Fig.13 As shown, the vertical cross-section of the hydrogen storage module 4 is one of a rectangle, a square, a circle, a triangle or a polygon, etc. The shape of the hydrogen storage module 4 can adopt different structural appearances according to different spatial positions.

[0044] Furthermore, if Figure 4As shown, there are several hydrogen storage modules 4, which are independent of each other and can be connected and combined with each other. The number of hydrogen storage modules 4 can be matched with the amount of hydrogen used according to the needs of the user and the use environment. Generally, the amount of hydrogen used is 1 to 5 kg. By configuring the number of hydrogen storage modules 4, the amount of hydrogen used can be freely matched and adjusted, and the range of hydrogen use can be wider. Two adjacent hydrogen storage modules 4 are connected by a connecting pipe 6; the connecting pipe 6 is located on the same side of the solid-state hydrogen storage module 1, and the connecting pipe 6 connects several hydrogen storage modules 4 in series, in parallel, or in series-parallel mixed mode. Such a setting can choose the connection mode of the hydrogen path according to different hydrogen-using devices and their hydrogen-using environments. The connection mode is flexible and changeable, the hydrogen-using mode is diversified, and the practicality and applicability are stronger, which is conducive to the user's use selection. Several hydrogen storage bottles 17 are arranged in the hydrogen storage module 4. The solid-state hydrogen storage module 1 of the modular solid-state hydrogen storage power generation system is composed of a plurality of hydrogen storage modules 4, which makes the solid-state hydrogen storage module 1 easy to transport, and the replacement, repair and maintenance of the hydrogen storage bottle 17 are simple and easy to implement, effectively improving the efficiency of transportation and replacement of the hydrogen storage bottle 17.

[0045] In one embodiment of the utility model, a plurality of hydrogen storage modules 4 are connected in series, and the solid-state hydrogen storage module 1 has a connecting pipe 6 connecting adjacent hydrogen storage modules 4, and the connecting pipe 6 is spatially located on the same side of the solid-state hydrogen storage module 1, so that the port valves 33 of each hydrogen storage module 4 are connected in sequence in a single direction, and the hydrogen gas flow passages of each hydrogen storage module 4 are continuous, and the gas flow flows out from the designated port valve 33. That is, the gas flow of a plurality of hydrogen storage modules 4 tends to be connected in series. When the hydrogen in the hydrogen storage bottle 17 in a single hydrogen storage module 4 is exhausted and the hydrogen storage module 4 needs to be replaced, or when a single hydrogen storage module 4 has a hydrogen leak and needs to be repaired, the hydrogen storage module 4 can be taken out by closing the control valve 16 and disassembling the connecting pipe 6 on the relevant hydrogen storage module 4. After the hydrogen storage module 4 is taken out, the remaining hydrogen storage modules 4 cannot provide hydrogen to the hydrogen-using device.

[0046] In another embodiment of the utility model, a plurality of hydrogen storage modules 4 are connected in parallel, and the solid-state hydrogen storage module 1 has a connecting pipe 6 connecting the hydrogen storage modules 4, and the connecting pipe 6 is spatially located on the same side of the solid-state hydrogen storage module 1, so that after the port valves 33 of each hydrogen storage module 4 are connected by the connecting pipe 6, the hydrogen gas flows of each hydrogen storage module 4 can be gathered and converged, and the converged gas flow flows out from the designated port valve 33. That is, the gas flows of the plurality of hydrogen storage modules 4 tend to be connected in parallel. In the structure in which the gas flow passages tend to be connected in parallel, when the hydrogen in the hydrogen storage bottle 17 of a single hydrogen storage module 4 is exhausted and the hydrogen storage module 4 needs to be replaced, or when a single hydrogen storage module 4 has hydrogen leakage and needs to be repaired, the control valve 16 of the corresponding hydrogen storage module 4 is closed, and the connecting pipe 6 on the corresponding hydrogen storage module 4 is disassembled to remove the hydrogen storage module 4. After the hydrogen storage module 4 is taken out, the remaining hydrogen storage modules 4 can still provide hydrogen to the hydrogen-using device. In a solid-state hydrogen storage device with gas paths in parallel, hydrogen supply to the hydrogen-using device will not be stopped due to a single hydrogen storage module 4 being faulty or damaged or requiring replacement.

[0047] In another embodiment of the utility model, a plurality of hydrogen storage modules 4 are connected in a series-parallel mixed manner, and the solid-state hydrogen storage module 1 has a connecting pipe 6 connected to the hydrogen storage module 4, and the connecting pipe 6 is spatially located on the same side of the solid-state hydrogen storage module 1, so that after the port valves 33 of each hydrogen storage module 4 are connected through the connecting pipe 6, the hydrogen gas flow paths of some hydrogen storage modules 4 can be continuous, and after the hydrogen gas flows of the remaining hydrogen storage modules 4 are gathered and converged, the gas flows of the above two connection modes finally converge and flow out from the designated port valve 33. The gas flows of a plurality of hydrogen storage modules 4 are simultaneously in a series trend and a parallel trend, that is, a series-parallel mixed trend. In the structure where the gas flow path is in a series-parallel mixed state, when the hydrogen in the hydrogen storage bottle 17 of a single hydrogen storage module 4 is exhausted and the hydrogen storage module 4 needs to be replaced, or when a single hydrogen storage module 4 has a hydrogen leak and needs to be repaired, the hydrogen storage module 4 can be taken out by closing the control valve 16 of the relevant hydrogen storage module 4 and disassembling the connecting pipe 6 on the relevant hydrogen storage module 4. After the hydrogen storage module 4 is taken out, the remaining hydrogen storage modules 4 connected in parallel can still provide hydrogen to the hydrogen-using device, and the hydrogen storage modules 4 connected in series cannot provide hydrogen to the hydrogen-using device. In the solid-state hydrogen storage module 1 where the gas path is in a series-parallel mixed state, the hydrogen supply to the hydrogen-using device will not be stopped due to a single hydrogen storage module 4 being faulty or damaged or needing to be replaced.

[0048] In other embodiments of the present invention, the hydrogen storage module 4 in the solid-state hydrogen storage module 1 can supply hydrogen independently.

[0049] Furthermore, if Figure 7 and Figure 8As shown, the hydrogen storage module 4 includes a receiving portion 18 with an independent space and a storage bottle assembly 19. The storage bottle assembly 19 is installed in the receiving portion 18, and the receiving portion 18 is used to install the storage bottle assembly 19 and limit the position of the storage bottle assembly 19. The receiving portion 18 is provided with a heat exchange portion 20 for facilitating the entry of outside air. The outside air enters the receiving portion 18 from the heat exchange portion 20 to dissipate the heat of the hydrogen storage bottle 17 in the storage bottle assembly 19.

[0050] In another embodiment of the present invention, Figure 7 As shown, the hydrogen storage module 4 includes a receiving portion 18, and the receiving portion 18 has a cover 21. The storage bottle assembly 19 is installed and placed in the receiving portion 18. The cover 21 covers the upper end of the receiving portion 18. An independent space is formed between the receiving portion 18 and the cover 21. The independent space is used to install and place the storage bottle assembly 19 while limiting the position of the storage bottle assembly 19. The receiving portion 18 and / or the cover 21 have a heat exchange portion 20 for facilitating the entry of outside air. The outside air enters the receiving portion 18 from the heat exchange portion 20 to dissipate the heat of the hydrogen storage bottle 17 in the storage bottle assembly 19.

[0051] In another embodiment of the present invention, Figure 2 As shown, the hydrogen storage module 4 includes a receiving portion 18, on which there is a cover 21, and the receiving portion 18 also has a front end plate 22 and a rear end plate 23. The storage bottle assembly 19 is installed and placed in the receiving portion 18, and the cover 21 covers the upper end of the receiving portion 18. The front end plate 22 and the rear end plate 23 block the two ends of the receiving portion 18 and are connected to the receiving portion 18 as a whole. The receiving portion 18, the cover 21, the front end plate 22 and the rear end plate 23 together form an independent space, which is used to install and place the storage bottle assembly 19 while limiting the position of the storage bottle assembly 19. The heat exchange portion 20 in this structure can be located on any one or any several of the receiving portion 18, the cover 21, the front end plate 22 and the rear end plate 23 to form a variety of combinations with the heat exchange portion 20, so that the outside air enters the receiving portion 18 from the heat exchange portion 20 to dissipate the heat of the hydrogen storage bottle 17 in the storage bottle assembly 19.

[0052] Furthermore, the end of the accommodating portion 18 of the hydrogen storage module 4 is a structure whose height and / or width is smaller than the front end of the accommodating portion 18. Since the hydrogen storage module 4 and the housing 5 adopt a pull-out structure, in order to conveniently introduce the hydrogen storage module 4 into the housing 5, the end of the accommodating portion 18 of the hydrogen storage module 4 can be made into a guide structure whose height and / or width is smaller than the front end of the accommodating portion 18. The housing 5 is first introduced from the end of the accommodating portion 18, so that the hydrogen storage module 4 can be conveniently and quickly introduced into the housing 5. The installation is convenient and quick, and the introduction and alignment are simple and easy to implement. Especially when the hydrogen storage module 4 has a certain weight, the use of this structure can effectively improve the efficiency of the operator in installing the hydrogen storage module 4, and can also effectively save the operator's physical strength.

[0053] In some other embodiments, since the hydrogen storage module 4 and the box body 5 adopt a pull-out structure, in order to conveniently introduce the hydrogen storage module 4 into the box body 5, the rear end plate 23 installed with the accommodating portion 18 in the hydrogen storage module 4 can be made into a guiding structure with a height and / or width smaller than the front end plate 22, and one end of the rear end plate 23 of the accommodating portion 18 is first introduced into the box body 5, so that the hydrogen storage module 4 can be conveniently and quickly introduced into the box body 5, and its installation is convenient and fast, and the introduction and alignment are simple and easy to implement. Especially when the hydrogen storage module 4 has a certain weight, the use of this structure can effectively improve the operator's installation efficiency of the hydrogen storage module 4, and can also effectively save the operator's physical strength.

[0054] Furthermore, if Fig. 9 , Fig.10 , Fig.11 As shown, the storage bottle assembly 19 is arranged in the hydrogen storage module 4, and the storage bottle assembly 19 includes a hydrogen storage bottle 17, a mounting and fixing portion 24 and an air circuit assembly 25. The modular air circuit assembly 25 is installed at the end of the hydrogen storage bottle 17 to facilitate the hydrogen in the hydrogen storage bottle 17 to supply hydrogen to the external hydrogen-using device; the mounting and fixing portion 24 is used to support and position the installation position of the hydrogen storage bottle 17 so that it cannot be displaced in the accommodating portion 18.

[0055] The mounting and fixing part 24 includes a first fixing member 26, a second fixing member 27 and a supporting member 28. The supporting member 28 is located between the accommodating part 18 and the hydrogen storage bottle 17. The supporting member 28 is used to position the accommodating part 18. The bottom of the supporting member 28 is installed and connected with the accommodating part 18. The top of the supporting member 28 has a groove that is shaped like the outer diameter of the hydrogen storage bottle 17. The top of the supporting member 28 is in contact with the surface of the hydrogen storage bottle 17 and limits the radial position of the hydrogen storage bottle 17. The second fixing member 27 has an arc shape that is shaped like the outer diameter of the hydrogen storage bottle 17.

[0056] The first fixing member 26 is mounted on the accommodating portion 18 or the supporting portion 28, and the second fixing member 27 is mounted on the first fixing member 26; or the second fixing member 27 is mounted on the supporting portion 28. Specifically, the first fixing member 26 is mounted on the accommodating portion 18, and the second fixing member 27 is mounted on the first fixing member 26. The radial position of the hydrogen storage bottle 17 is limited by the combination of the first fixing member 26 and the second fixing member 27, and the hydrogen storage bottle 17 is firmly installed and positioned in cooperation with the supporting portion 28; the first fixing member 26 is mounted on the supporting portion 28, and the second fixing member 27 is mounted on the first fixing member 26. The hydrogen storage bottle 17 is firmly installed and positioned in cooperation with the supporting portion 28; the second fixing member 27 is mounted on the supporting portion 28, and the hydrogen storage bottle 17 is firmly installed and positioned in cooperation with the supporting portion 28.

[0057] The first fixing member 26 and the second fixing member 27 are made of metal, and the support portion 28 is made of hard engineering plastic. The support portion 28 is made of hard engineering plastic, which is light in weight and has high strength, high hardness, and high wear resistance. The support portion 28 is installed in the accommodating portion 18 to reduce the overall weight of the hydrogen storage module 4. The support portion 28 is located at the bottom of the hydrogen storage bottle 17 to support and limit the position of the hydrogen storage bottle 17.

[0058] There is at least one mounting and fixing part 24, and the first fixing member 26, the second fixing member 27 and the supporting part 28 of the mounting and fixing part 24 may also be provided with a heat exchange part for accelerating heat exchange of the hydrogen storage bottle 17. The heat exchange part may be a component or part that is heat-conductingly connected with the three, or a structure such as a heat dissipation fin, a heat dissipation outer covering, etc. that is integrally made with the three.

[0059] Furthermore, if Fig.12As shown, the bottle mouth valve of the hydrogen storage bottle 17 faces the front end of the accommodating portion 18 of the hydrogen storage module 4, and the modular gas circuit assembly 25 is arranged between the bottle mouth valve of the hydrogen storage bottle 17 and the front end of the accommodating portion 18. The gas circuit assembly 25 includes a first air outlet pipe 29, a control valve 16, a second air outlet pipe 30, a third air outlet pipe 31, a fourth air outlet pipe 32 and a port valve 33. The bottle mouth valve, the third air outlet pipe 31, the first air outlet pipe 29, the control valve 16, the second air outlet pipe 30, the fourth air outlet pipe 32 and the port valve 33 of the hydrogen storage bottle 17 are connected in sequence. The control valve 16 controls the flow or cutoff of the hydrogen gathered in the first air outlet pipe 29. The hydrogen enters the second air outlet pipe 30 through the control valve 16 and flows to the port valve 33 via the second air outlet pipe 30. The bottle mouth valves of multiple hydrogen storage bottles 17 in the same hydrogen storage module 4 are all connected to the first air outlet pipe 29 through the third air outlet pipe 31, one end of the first air outlet pipe 29 is connected to one end of the control valve 16, and the other end of the control valve 16 is connected to the fourth air outlet pipe 32 through the second air outlet pipe 30. The two ends of the fourth air outlet pipe 32 are respectively connected to the port valve 33 of the hydrogen storage module 4. The control valve 16 is located inside the hydrogen storage module 4. The control valve 16 has a control handle. The control handle of the control valve 16 is located outside the front end of the accommodating portion 18 of the hydrogen storage module 4 or above the cover 21 of the accommodating portion 18. When the port valve 33 of a hydrogen storage module 4 is connected to the port valve 33 of other hydrogen storage modules 4 through the connecting pipe 6, the hydrogen usage capacity can be expanded. For example, when the hydrogen storage capacity of a single hydrogen storage module 4 is 100g, when the external hydrogen-using device needs to use more hydrogen, it is only necessary to connect the port valves 33 of several hydrogen storage modules 4 in series, in parallel, or in series and parallel through the connecting pipe 6. At this time, the hydrogen storage capacity is much greater than 100g, which can well realize the hydrogen supply of the external large hydrogen-using device. In one embodiment of the utility model, the port valve 33 is arranged on the outside of the hydrogen storage module 4, and the two ends of the fourth gas outlet pipe 32 are respectively connected to the two port valves 33 of the hydrogen storage module 4 after passing through the front end plate 22 of the accommodating portion 18. In another embodiment of the utility model, the port valve 33 is arranged on the outside of the hydrogen storage module 4, and the two ends of the fourth gas outlet pipe 32 are respectively connected to the port valve 33 of the hydrogen storage module 4 after passing through the cover body 21 of the accommodating portion 18. According to the shape of the hydrogen storage module 4 and the position of the external hydrogen device, the positions of the control valve 16 and the port valve 33 are adjusted, so that the control valve 16 can manually or electrically control the opening or closing of the hydrogen supply path of the hydrogen storage bottle 17. The port valve 33 is arranged on the outside of the hydrogen storage module 4, which is more conducive to the connection of the connecting pipe 6 or the external hydrogen device. Setting the control handle of the control valve 16 on the outside of the hydrogen storage module 4 is more conducive to the maintenance personnel to manually operate the storage component to open and close the airflow path, and it is convenient to disassemble and replace the hydrogen storage module 4. In this solid-state hydrogen storage device, the connecting pipe 6 and the gas circuit assembly 25 are both independent module structures with strong replaceability. When any one of the connecting pipe 6 and the gas circuit assembly 25 is damaged, it can be directly replaced, which greatly shortens the repair and maintenance time.The modular connecting pipe 6 and the modular gas path component 25 have unique size and structure, are highly replaceable, are simple and convenient to produce, are more conducive to disassembly and assembly, and are easy to mass produce.

[0060] There are several hydrogen storage modules 4 in the solid-state hydrogen storage device, and there are several hydrogen storage bottles 17 in the hydrogen storage modules 4. Each storage bottle assembly 19 has an independent control valve 16, and can freely match the number of hydrogen storage modules 4 and the number of hydrogen storage bottles 17 according to the use requirements of the external hydrogen-using device for hydrogen. When the hydrogen storage module 4 needs to be replaced or repaired and maintained, it is only necessary to close the control valve 16 of the corresponding hydrogen storage module 4 to take out the hydrogen storage module 4.

[0061] In some embodiments, the number of hydrogen storage modules 4 can be selected as any one of 1, 2, 3, 4, 5, and 6, and the number of hydrogen storage bottles 17 in the storage bottle assembly 19 in the hydrogen storage module 4 can be selected as any one of 2, 3, 4, 5, and 6. The number of hydrogen storage modules 4 and the number of hydrogen storage bottles 17 in each hydrogen storage module 4 can be freely selected and matched according to the use requirements of external hydrogen-using devices for hydrogen. The selectable matching range is wide, and the hydrogen consumption requirements of various hydrogen-using devices can be met.

[0062] For example, when the number of hydrogen storage modules 4 is 2, the number of first hydrogen storage bottles 17 can be any one of 2, 3, 4, 5, and 6; the number of second hydrogen storage bottles 17 can be any one of 2, 3, 4, 5, and 6; when the number of hydrogen storage modules 4 is 3, 4, 5, and 6, the expansion is also carried out accordingly. In this way, the range of free selection and matching is large, and the selectable matching range is wide, which can meet the hydrogen consumption requirements of various hydrogen-using devices.

[0063] Furthermore, the modular solid-state hydrogen storage power generation system also includes a hydrogen concentration sensor 7, which is connected to the main control module 3. The hydrogen concentration sensor 7 is used to check the concentration of hydrogen. The main control module 3 is set with a slight leakage setting threshold range and a significant leakage setting threshold range of hydrogen concentration. The hydrogen concentration sensor 7 is a signal acquisition end. The hydrogen concentration sensor 7 converts the detected hydrogen concentration signal into an electrical signal and inputs it to the main control module 3, so that the main control module 3 can perform real-time detection and comparison of the hydrogen concentration in the modular solid-state hydrogen storage power generation system to determine the subsequent control method adopted by the main control module 3 for the modular solid-state hydrogen storage power generation system. The threshold range for slight leakage is set as: 20% LFL<hydrogen concentration<50% LFL, and the threshold range for obvious leakage is set as: hydrogen concentration>50% LFL; one or more hydrogen concentration sensors 7 are provided; when one hydrogen concentration sensor 7 is provided, the hydrogen concentration sensor 7 is installed in the solid-state hydrogen storage module 1 to detect the leakage of hydrogen in the solid-state hydrogen storage module 1; when two hydrogen concentration sensors 7 are provided, one hydrogen concentration sensor 7 is installed in the solid-state hydrogen storage module 1 and in the fuel cell power generation module 2 to detect the leakage of hydrogen in the solid-state hydrogen storage module 1 and in the fuel cell power generation module 2, so as to make the detection result more accurate; when more than two hydrogen concentration sensors 7 are provided, one hydrogen concentration sensor 7 is installed in each hydrogen storage module 4 and in the fuel cell power generation module 2. The hydrogen concentration sensor 7 detects the amount of hydrogen leakage and accurately detects whether there is any hydrogen leakage during the process of the solid-state hydrogen storage module 1 supplying hydrogen to the fuel cell power generation module 2. The general control module 3 identifies the specific module or position where the hydrogen leakage occurs based on the signal detected by the hydrogen concentration sensor 7, and only cuts off the circuit and gas path of the hydrogen leakage component, while the other non-leaking modules work normally. This makes repair and maintenance convenient and quick, and only the leaking module needs to be repaired, maintained and replaced.

[0064] Further, the modular solid-state hydrogen storage power generation system also includes an exhaust fan 8, which is connected to the main control module 3. The exhaust fan 8 is used to extract the residual or leaked hydrogen in the modular solid-state hydrogen storage power generation system and discharge it to the outside of the modular solid-state hydrogen storage power generation system; the exhaust fan 8 can cool the interior of the modular solid-state hydrogen storage power generation system. When the modular solid-state hydrogen storage power generation system needs to be cooled, the main control module 3 will issue a temperature overheating alarm and turn on the exhaust fan 8 for external discharge; the main control module 3 controls the operation of the exhaust fan 8 according to the hydrogen concentration monitored by the hydrogen concentration sensor 7. The exhaust fan 8 can be discharged normally or strongly. When the exhaust fan 8 is discharged normally, the operating power of the exhaust fan 8 is less than 70% of the full power. When the exhaust fan 8 is discharged strongly, the exhaust fan 8 runs at full power. The exhaust fan 8 receives a signal from the main control module 3 to start or stop. The exhaust fan 8 can be installed on the fuel cell power generation module 2 or the solid-state hydrogen storage module 1. When and only when the main control module 3 is not received by the fuel cell power generation module 2, the exhaust fan 8 can also be installed on the main control module 3. That is, the exhaust fan 8 can be installed in any module in the modular solid-state hydrogen storage power generation system.

[0065] Furthermore, the modular solid-state hydrogen storage power generation system also includes a battery 9, which is arranged in the shell 15. The battery 9 is connected to the fuel cell power generation module 2 and the main control module 3. The battery 9 serves as an auxiliary power supply for the fuel cell power generation module 2. The battery 9 can provide a starting power supply for the modular solid-state hydrogen storage power generation system, and the fuel cell power generation module 2 can charge the battery 9.

[0066] Furthermore, the modular solid-state hydrogen storage power generation system also includes a first temperature sensor 10 and a second temperature sensor 11. The first temperature sensor 10 is used to detect the temperature of the hydrogen storage bottle 17 in the hydrogen storage module 4, and the second temperature sensor 11 is used to detect the ambient temperature in the modular solid-state hydrogen storage power generation system; the first temperature sensor 10 and the second temperature sensor 11 are both connected to the general control module 3; the fuel cell power generation module 2 is provided with an intake solenoid valve and an exhaust solenoid valve; the solid-state hydrogen storage module 1 is provided with a pressure sensor 12, a pressure reducing valve 13 and a pressure relief valve 14. When the pressure detected by the pressure sensor 12 is greater than 10MPa, the pressure relief valve 14 is used to automatically discharge hydrogen; the hydrogen in the solid-state hydrogen storage module 1 enters the fuel cell power generation module 2 through the pressure sensor 12 and the pressure reducing valve 13 in turn.

[0067] like Figure 5 As shown, the working principle of the modular solid-state hydrogen storage power generation system is:

[0068] The general control module 3 maintains real-time communication with the fuel cell power generation system module for monitoring and starting and stopping the fuel cell power generation system module; the hydrogen in the hydrogen storage module 4 in the solid hydrogen storage module 1 enters the fuel cell power generation system module through the pressure sensor 12 and the pressure reducing valve 13 in turn. When the general control module 3 turns on the fuel cell power generation system module, the fuel cell in the fuel cell power generation system module starts to work, converts hydrogen into electricity, and uploads the fuel cell status to the general control module 3 in real time; when the pressure is greater than 10MPa, the hydrogen will be automatically discharged through the pressure relief valve 14. Among them, the battery 9 serves as the starting power supply of the system and can be used as an auxiliary power supply for the fuel cell. In the early stage of power generation of the fuel cell power generation system module, when the electric energy generated by the fuel cell cannot meet the power load demand, the battery 9 serves as an auxiliary power supply in the early stage. When the electric energy generated by the fuel cell meets the power load demand, the electric energy generated can also charge the battery 9 in reverse.

[0069] like Fig.14 As shown, the control method of the modular solid-state hydrogen storage power generation system includes the following steps:

[0070] S1: Assemble the modular solid-state hydrogen storage power generation system, open the air intake valve, and maintain sufficient supply of hydrogen;

[0071] S2: Start the modular solid-state hydrogen storage power generation system, the main control module 3 is powered, and the gas pipeline of the modular solid-state hydrogen storage power generation system is self-checked to check whether the pipeline pressure is within the designed working pressure range; if the gas pipeline self-check is normal, the subsequent operation will be performed. When the gas pipeline self-check is abnormal, the modular solid-state hydrogen storage power generation system will alarm and shut down to end the operation and return to the initial state;

[0072] S3: The fuel cell power generation module 2 performs a self-test; checks whether the temperature, pressure, and status of each solenoid valve of the fuel cell power generation module 2 are normal. If normal, subsequent operations will be performed. If abnormal, the modular solid-state hydrogen storage power generation system will alarm and shut down to end the operation and return to the initial state;

[0073] S4: the main control module 3 sends a command to start the fuel cell power generation module 2;

[0074] S5: The fuel cell power generation module 2 turns on the air intake solenoid valve, the exhaust fan 8, and the exhaust solenoid valve in sequence; the general control module 3 records the relevant detection data, and the fuel cell power generation module 2 continues to operate for a period of time and then supplies power to the outside;

[0075] S6: During the startup and operation of the modular solid-state hydrogen storage power generation system, the hydrogen concentration sensor 7 is used to detect the hydrogen concentration. When a hydrogen leak occurs, the main control module 3 issues an alarm and starts the exhaust fan 8 to discharge the leaked hydrogen. At the same time, the power supply of other equipment except the exhaust fan 8 and the main control module 3 is cut off, and the hydrogen gas pipeline is closed to facilitate maintenance personnel to maintain the equipment. When the leaked hydrogen is within the set threshold range of slight leakage (slight leakage, that is, when 20% LFL < hydrogen concentration < 50% LFL), the main control module 3 starts the exhaust fan 8 to discharge the leaked hydrogen normally; when the leaked hydrogen is within the set threshold range of obvious leakage, the main control module 3 starts the exhaust fan 8 to discharge the leaked hydrogen strongly.

[0076] When one hydrogen concentration sensor 7 is provided, the hydrogen concentration sensor is installed in the solid-state hydrogen storage module 1 to detect the amount of hydrogen leakage. When the hydrogen concentration sensor 7 detects that there is hydrogen leakage inside the modular solid-state hydrogen storage power generation system, the hydrogen concentration sensor 7 transmits a signal to the main control module 3. When the hydrogen leakage concentration is within the slight leakage setting threshold range set by the main control module 3 (slight leakage, i.e. when 20% LFL < hydrogen concentration < 50% LFL), the main control module 3 issues an alarm, and starts the exhaust fan 8 to discharge the leaked hydrogen normally, and at the same time cuts off the power except for the exhaust fan 8 and the main control module 3, and closes the hydrogen path, so as to facilitate maintenance personnel to perform on-site detection and maintenance. When the hydrogen leakage concentration is within the slight leakage setting threshold range set by the main control module 3 (obvious leakage, i.e. when the hydrogen concentration is greater than 50% LFL), the main control module 3 issues an alarm and starts the exhaust fan 8 to forcefully discharge the leaked hydrogen, and at the same time cuts off the power supply except for the exhaust fan 8 and the main control module 3, closing the hydrogen path to facilitate on-site inspection and maintenance by maintenance personnel.

[0077] When there are two hydrogen concentration sensors 7, one hydrogen concentration sensor 7 is installed in each of the solid-state hydrogen storage module 1 and the fuel cell power generation module 2 to accurately detect the amount of hydrogen leakage and quickly determine the leakage location; when there is a hydrogen leakage, the hydrogen concentration sensor 7 transmits a signal to the main control module 3, and the main control module 3 identifies and feeds back the information of the module where the hydrogen leakage occurs. When the hydrogen leakage concentration is within the slight leakage set threshold range set by the main control module 3 (slight leakage, that is, when 20% LFL < hydrogen concentration < 50% LFL), the main control module 3 issues an alarm and starts the exhaust fan 8 to discharge the leaked hydrogen normally, and at the same time cuts off the power except the exhaust fan 8 and the main control module 3, and closes the hydrogen path to facilitate maintenance personnel to perform on-site detection and maintenance. When the hydrogen leakage concentration is within the obvious leakage setting threshold range set by the main control module 3 (obvious leakage, i.e. when the hydrogen concentration is greater than 50% LFL), the main control module 3 issues an alarm and starts the exhaust fan 8 to forcefully discharge the leaked hydrogen, and at the same time cuts off the power except for the exhaust fan 8 and the main control module 3, closing the hydrogen path, so that maintenance personnel can identify and feedback the information of the hydrogen leakage module according to the main control module 3, and directly perform on-site inspection and maintenance of the module causing the hydrogen leakage, so as to improve the convenience of repair and maintenance.

[0078] When there are multiple hydrogen concentration sensors 7, the hydrogen concentration sensors are installed in individual hydrogen storage modules 4 in the solid-state hydrogen storage module 1, and are placed in the fuel cell power generation module 2 at the same time. If only the hydrogen storage module 4 in the solid-state hydrogen storage module 1 leaks, the specific working state is as follows: the hydrogen concentration sensor 7 is used to detect whether there is a hydrogen leak in each hydrogen storage module 4 in the solid-state hydrogen storage module 1. When there is a hydrogen leak, the hydrogen concentration sensor 7 transmits a signal to the main control module 3. The main control module 3 identifies and feeds back the information of the hydrogen storage module 4 where the hydrogen leak occurs. When the hydrogen leakage concentration is within the slight leakage setting threshold range set by the main control module 3 (slight leakage, that is, when 20% LFL < hydrogen concentration < 50% LFL), the main control module 3 issues an alarm and starts the exhaust fan. 8. The leaked hydrogen is discharged normally; the main control module 3 controls and cuts off the gas path and circuit of the hydrogen storage module 4 related to the leakage. The maintenance personnel only need to take out the hydrogen storage module 4 with leakage, and perform maintenance or replacement on the hydrogen storage module 4 in an environment away from the modular solid-state hydrogen storage power generation system. The other hydrogen storage modules 4 without leakage continue to provide hydrogen for the fuel cell power generation module 2. The effect is that when a single hydrogen storage module 4 has a problem, it will not affect the normal use of the modular solid-state hydrogen storage power generation system, and the maintenance of the hydrogen storage module 4 has strong flexibility and will not be restricted by the solid-state hydrogen storage module 1. When there is a hydrogen leak, the hydrogen concentration sensor 7 transmits a signal to the main control module 3, and the main control module 3 identifies and feeds back information about the hydrogen storage module 4 where the hydrogen leak occurs. When the hydrogen leakage concentration is within the obvious leakage set threshold range set by the main control module 3 (obvious leakage, i.e. when the hydrogen concentration is greater than 50% LFL), the main control module 3 issues an alarm, and starts the exhaust fan 8 to forcefully discharge the leaked hydrogen, and at the same time cuts off the power supply except the exhaust fan 8 and the main control module 3, closing the hydrogen path; maintenance personnel can remove the hydrogen storage module 4 from the solid-state hydrogen storage module 1 according to the hydrogen storage module 4 with hydrogen leakage provided by the main control module 3, and can repair, maintain or replace the hydrogen storage module 4 in an environment away from the modular solid-state hydrogen storage power generation system, which is more conducive to on-site detection and repair by maintenance personnel.

[0079] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0080] 1. The solid-state hydrogen storage module 1 is composed of a plurality of hydrogen storage modules, which makes the transportation of the solid-state hydrogen storage module 1 convenient, and the replacement, repair and maintenance of the hydrogen storage bottle 17 are simple and easy to implement, which effectively improves the efficiency of transportation and replacement of the hydrogen storage bottle 17;

[0081] 2. The fuel cell power generation module 2 and the solid hydrogen storage module 1 are both independent modular structures. The operation of the fuel cell power generation module 2 will not be affected by the external environment or other supporting components, and the fuel cell power generation module 2 can be well protected, overcoming and solving the problem of poor operating stability of the fuel cell power generation module 2. The independent fuel cell power generation module 2 has a high degree of integration and can achieve timely, accurate and effective control;

[0082] 3. It can accurately detect whether there is any hydrogen leakage during the process of hydrogen supply from the solid-state hydrogen storage module 1 to the fuel cell power generation module 2, and reasonably and effectively control the working state of the modular solid-state hydrogen storage power generation system.

[0083] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A modular solid-state hydrogen storage power generation system, characterized in that: The modular solid-state hydrogen storage power generation system is an integrated structure, and includes a solid-state hydrogen storage module, a fuel cell power generation module and a general control module, wherein: The solid-state hydrogen storage module can provide hydrogen for the fuel cell power generation module. The fuel cell power generation module converts hydrogen into electrical energy for external power supply; The general control module is connected to both the solid-state hydrogen storage module and the fuel cell power generation module; The modular solid-state hydrogen storage power generation system has a channel for ventilation and heat dissipation.

2. The modular solid-state hydrogen storage power generation system according to claim 1, characterized in that: The modular solid-state hydrogen storage power generation system further includes a housing, the solid-state hydrogen storage module and the fuel cell power generation module are both installed in the housing, and the solid-state hydrogen storage module and the fuel cell power generation module are installed in a detachable connection; The fuel cell power generation module is located at the upper part, the lower part or one side of the solid hydrogen storage module; There is a containing space in the shell or in the fuel cell power generation module, and the containing space is used to install the main control module.

3. The modular solid-state hydrogen storage power generation system according to claim 2, characterized in that: The accommodating space in the fuel cell power generation module is located at the upper part of the fuel cell power generation module, The detachable connection is at least one of a bolt connection, a snap connection, a plug connection, a splicing connection, and a nested connection.

4. The modular solid-state hydrogen storage power generation system according to claim 1, characterized in that: The solid-state hydrogen storage module comprises a hydrogen storage module and a box body, wherein a pull-out guide rail matching the hydrogen storage module is arranged in the box body, the hydrogen storage module is installed in the box body through the pull-out guide rail, and a plurality of the hydrogen storage modules are connected through a connecting pipe; The hydrogen storage module is also connected to the box body by at least one auxiliary connection method of screw connection, clamping or plugging; The vertical cross-section of the hydrogen storage module is one of rectangular, square, circular or triangular.

5. The modular solid-state hydrogen storage power generation system according to claim 4, characterized in that: There are a plurality of hydrogen storage modules, and two adjacent hydrogen storage modules are connected via a connecting pipe; The connecting pipe is located on the same side of the solid-state hydrogen storage module, and the connecting pipe connects a plurality of the hydrogen storage modules in series, in parallel, or in a series-parallel mixed manner; A hydrogen storage bottle is arranged in the hydrogen storage module.

6. The modular solid-state hydrogen storage power generation system according to claim 4, characterized in that: The modular solid-state hydrogen storage power generation system also includes a hydrogen concentration sensor, which is connected to the main control module and is used to check the concentration of hydrogen. The main control module is set with a slight leakage setting threshold range and a significant leakage setting threshold range of hydrogen concentration. The threshold range of the minor leakage setting is: 20% LFL<hydrogen concentration<50% LFL, The threshold range for obvious leakage setting is: hydrogen concentration>50%LFL; The hydrogen concentration sensor is provided with one or more; When there is one hydrogen concentration sensor, the hydrogen concentration sensor is installed in the solid-state hydrogen storage module; When two hydrogen concentration sensors are provided, one hydrogen concentration sensor is installed in each of the solid-state hydrogen storage module and the fuel cell power generation module; When there are two or more hydrogen concentration sensors, one hydrogen concentration sensor is installed in each of the hydrogen storage modules and the fuel cell power generation module.

7. The modular solid-state hydrogen storage power generation system according to claim 6, characterized in that: The modular solid-state hydrogen storage power generation system further includes an exhaust fan, which is connected to the general control module and is used to extract residual or leaked hydrogen in the modular solid-state hydrogen storage power generation system and discharge it to the outside of the modular solid-state hydrogen storage power generation system; The exhaust fan can cool the interior of the modular solid-state hydrogen storage power generation system; The general control module controls the operation of the exhaust fan according to the hydrogen concentration monitored by the hydrogen concentration sensor, and the exhaust fan can perform normal exhaust or strong exhaust. When the exhaust fan is in normal discharge, the operating power of the exhaust fan is less than 70% of the full power. When the exhaust fan is in strong exhaust mode, the exhaust fan operates at full power.

8. The modular solid-state hydrogen storage power generation system according to claim 2, characterized in that: The modular solid-state hydrogen storage power generation system also includes a battery, which is arranged in the shell. The battery is connected to both the fuel cell power generation module and the general control module. The battery serves as an auxiliary power supply for the fuel cell power generation module. The battery can provide a starting power supply for the modular solid-state hydrogen storage power generation system, and the fuel cell power generation module can charge the battery.

9. The modular solid-state hydrogen storage power generation system according to claim 4, characterized in that: The modular solid-state hydrogen storage power generation system also includes a first temperature sensor and a second temperature sensor, the first temperature sensor is used to detect the temperature of the hydrogen storage bottle in the hydrogen storage module, and the second temperature sensor is used to detect the ambient temperature in the modular solid-state hydrogen storage power generation system; The first temperature sensor and the second temperature sensor are both connected to the main control module; The fuel cell power generation module is provided with an intake solenoid valve and an exhaust solenoid valve.

10. The modular solid-state hydrogen storage power generation system according to claim 1, characterized in that: The solid-state hydrogen storage module is provided with a pressure sensor, a pressure reducing valve and a pressure relief valve. When the pressure detected by the pressure sensor is greater than 10 MPa, the pressure relief valve is used to automatically discharge hydrogen; The hydrogen in the solid-state hydrogen storage module enters the fuel cell power generation module through the pressure sensor and the pressure reducing valve in sequence.

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