Hydrogen fuel cell power generation device and power generation system

Abstract

The utility model provides a hydrogen fuel cell power generation device and a power generation system, and relates to the technical field of fuel cell power generation, the hydrogen fuel cell power generation device comprises a cabinet and a power generation main body, the cabinet comprises a frame body, a surrounding plate and a cover plate, the surrounding plate is installed on the frame body, and the surrounding plate and the frame body jointly define a containing cavity; the cover plate is connected with the frame body and seals the opening of the accommodating cavity, the cabinet is provided with a control interface and a ventilation opening communicated with the accommodating cavity, and the control interface comprises at least one of a communication interface, a power transmission interface, a hydrogen transmission interface, a heat dissipation module external interface and a waste gas and waste water discharge interface. The ventilation opening is suitable for circulating gas in the accommodating cavity; the power generation body is installed in the containing cavity and connected with the control interface so that the power generation body can be in butt joint with an external device. The utility model is convenient for flexible integration and easy for capacity expansion, can meet the power output requirements of different power levels in various application scenarios, and has strong versatility.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cell power generation, in particular to a hydrogen fuel cell power generation device and a power generation system. Background Art

[0002] Hydrogen fuel cell power generation is a technology that directly converts the chemical energy of compressed hydrogen and oxygen into electrical energy for power generation, which can be utilized by downstream users. It has the advantages of fast startup, high power density, and low noise, so it has gradually been applied in the fields of transportation, aerospace, and distributed power generation, etc., which can meet the power consumption needs of multiple fields and has broad application prospects.

[0003] In related technologies, power generation systems are mostly power generation devices of factory container structures for megawatt-level systems, or portable small-power power generation devices with a power generation power level generally of several kilowatts or dozens of kilowatts. However, power generation devices with a power level of hundreds of kilowatts often need to be developed and designed specifically according to specific application scenarios. Therefore, power generation devices with a power level of hundreds of kilowatts cannot be universal in various application scenarios. In addition, the power level range of the power generation system has strong limitations, the stability of power output is poor, and it is not convenient for later maintenance. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems in the related technologies to a certain extent.

[0005] To this end, an embodiment of one aspect of the utility model provides a hydrogen fuel cell power generation device, which is convenient for flexible integration and easy to expand capacity, can meet the power output requirements of different power levels in various application scenarios, and has strong versatility.

[0006] An embodiment of another aspect of the utility model provides a hydrogen fuel cell power generation system.

[0007] A hydrogen fuel cell power generation device according to an embodiment of the utility model includes a cabinet and a power generation main body. The cabinet includes a frame body, a surrounding plate, and a cover plate. The surrounding plate is installed on the frame body and jointly surrounds a containing cavity with the frame body. The cover plate is connected to the frame body and closes the opening of the containing cavity. The cabinet is provided with a control interface and a ventilation port communicated with the containing cavity. The control interface includes at least one of a communication interface, a power transmission interface, a hydrogen transmission interface, an external interface of a heat dissipation module, and an exhaust gas and waste water discharge interface. The ventilation port is adapted to circulate the gas in the containing cavity. The power generation main body is installed in the containing cavity and connected to the control interface to facilitate the power generation main body to dock with an external device.

[0008] According to the hydrogen fuel cell power generation device of the embodiments of the present utility model, a cabinet structure is constructed by the cooperation of a frame body, a surrounding plate and a cover plate, and the power generation main body is integrated into the accommodating cavity of the cabinet. Through the control interface on the cabinet, convenient docking between the power generation main body and external devices is realized, and the ventilation openings on the cabinet can exchange the gas in the accommodating cavity with the external air to ensure the smooth power generation work of the power generation main body, forming an independent cabinet-type hydrogen fuel cell power generation device. Therefore, when used for different application scenarios, developers do not need to carry out too much secondary design. By directly connecting multiple cabinet-type hydrogen fuel cell power generation devices, the output of the power can be expanded exponentially. Therefore, compared with the related technologies, the present utility model is convenient for flexible integration and easy to expand capacity, can meet the power output requirements of different power levels under various application scenarios, and has strong versatility.

[0009] In some embodiments, the surrounding plate includes a front panel, a back panel and two side panels. The front panel, the back panel, the two side panels and the frame body jointly enclose the accommodating cavity. The front panel is movably connected to the frame body and can open or close the front of the accommodating cavity, and the back panel is provided with a maintenance opening.

[0010] In some embodiments, at least one of the two side panels is movably connected to the frame body and can open or close the side of the accommodating cavity.

[0011] In some embodiments, the hydrogen fuel cell power generation device further includes a baffle, and the baffle is detachably connected to the back panel and is used to block the maintenance opening.

[0012] In some embodiments, the hydrogen fuel cell power generation device further includes a first fan and a second fan, and both the first fan and the second fan are installed in the accommodating cavity;

[0013] The ventilation opening includes a first air outlet and a second air outlet. The first air outlet is above the second air outlet in the height direction of the cabinet. The first fan is arranged adjacent to the first air outlet, and the second fan is arranged adjacent to the second air outlet.

[0014] In some embodiments, the control interface includes a hydrogen delivery interface, and the first fan is also arranged adjacent to the hydrogen delivery interface to prevent hydrogen accumulation.

[0015] In some embodiments, both the front panel and the side panel include a first plate segment and a second plate segment connected to each other. The first plate segment is above the second plate segment in the height direction of the cabinet;

[0016] The first plate segment of the side plate is provided with the first air vent, the first fan is located at the first air vent and is connected to the first plate segment of the side plate, the second plate segment of the panel is provided with the second air vent, and the second fan is installed on the inner bottom surface of the accommodation cavity.

[0017] In some embodiments, the hydrogen fuel cell power generation device further includes a shutter, which is installed at the ventilation opening and completely covers the ventilation opening to facilitate rain protection and ventilation of the accommodation cavity.

[0018] In some embodiments, the hydrogen fuel cell power generation device further includes a hydrogen concentration detector, which is installed on the cover plate, and the detection end of the hydrogen concentration detector is located on the inner top surface of the accommodation cavity.

[0019] In some embodiments, the control interface includes power delivery interfaces. There are at least two power delivery interfaces. Among the two power delivery interfaces, one power delivery interface is used to deliver high-voltage power, and the other power delivery interface is used to deliver low-voltage power. The distance between the two power delivery interfaces is greater than 1 m to electrically isolate the high-voltage power and the low-voltage power.

[0020] In some embodiments, the control interface includes a power delivery interface, a hydrogen delivery interface, an external interface for the heat dissipation module, and an exhaust gas and wastewater discharge interface. The power generation main body includes a fuel cell stack, an air supply module, a hydrogen supply module, a voltage conversion module, and a heat dissipation module.

[0021] Wherein, the air inlet of the fuel cell stack is communicated with the air supply module and the hydrogen supply module, the waste discharge port of the fuel cell stack is communicated with the exhaust gas and wastewater discharge interface, the air supply module is communicated with the outside, and the hydrogen supply module is communicated with the hydrogen delivery interface;

[0022] Wherein, the fuel cell stack is electrically connected to the input end of the voltage conversion module, and the output end of the voltage conversion module is electrically connected to the power delivery interface;

[0023] Wherein, the heat dissipation module is in contact with the fuel cell stack, the air supply module, the hydrogen supply module, and the voltage conversion module and can perform heat transfer, and the heat dissipation module is communicated with the external interface of the heat dissipation module.

[0024] A hydrogen fuel cell power generation system according to an embodiment of the present utility model includes a power generation device and a hydrogen gas source. The power generation device is the power generation device described in any of the above embodiments. There are multiple power generation devices arranged at intervals. The control interfaces of the power generation devices include communication interfaces, power transmission interfaces, and hydrogen gas transmission interfaces. The communication interfaces of all the power generation devices are adapted to communicate with the user side, and the power transmission interfaces of all the power generation devices are adapted to output power externally; the hydrogen gas source is communicated with the hydrogen gas transmission interfaces of all the power generation devices.

[0025] In the hydrogen fuel cell power generation system according to an embodiment of the present utility model, the power generation device is designed as a cabinet-type hydrogen fuel cell power generation device formed by the cooperation of a cabinet and a power generation main body, which is convenient for flexible integration and easy to expand. Therefore, compared with the related art, in a power generation system formed by multiple such power generation devices, since each power generation device can work independently, when a certain power generation device fails or the working conditions of the power generation device need to be adjusted according to the actual power consumption demand, the failed power generation device or the corresponding number of power generation devices can be stopped, while the remaining power generation devices continue to operate, so as to adapt to application scenarios with a variety of power level ranges, improving the flexibility of the power level output of the power generation system and greatly enhancing the power output stability of the entire power generation system.

[0026] In some embodiments, the hydrogen fuel cell power generation system further includes an external power source, and the external power source is electrically connected to each power generation device, and the external power source is adapted to provide the required starting power for the power generation device.

[0027] In some embodiments, the hydrogen fuel cell power generation system further includes a gas supply main pipe and a gas supply branch pipe. The gas supply main pipe is communicated with the hydrogen gas source. The first end of the gas supply branch pipe is communicated with the gas supply main pipe, and the second end of the gas supply branch pipe is communicated with the hydrogen gas transmission interface of the power generation device. There are multiple gas supply branch pipes and they correspond to the power generation devices one by one.

[0028] In some embodiments, a coolant delivery interface and a coolant discharge interface are provided on the back plate of the power generation device. The hydrogen fuel cell power generation system further includes a liquid supply main pipe, a liquid supply branch pipe, a liquid discharge main pipe, and a liquid discharge branch pipe.

[0029] Among them, the input end of the liquid supply main pipe is communicated with a coolant source, and the output end of the liquid supply main pipe, the liquid supply branch pipe, the coolant delivery interface, and the coolant inlet of the heat dissipation module are sequentially communicated, so as to supply coolant to the heat dissipation module. There are multiple liquid supply branch pipes and they correspond to the power generation devices one by one;

[0030] Among them, the output end of the liquid discharge main pipe is communicated with the outside. The coolant outlet of the heat dissipation module, the coolant discharge interface, the liquid discharge branch pipe and the input end of the liquid discharge main pipe are communicated in sequence to facilitate the discharge of the coolant of the heat dissipation module. There are multiple liquid discharge branch pipes, which correspond to the power generation devices one by one.

[0031] In some embodiments, the control interface of the power generation device further includes an exhaust gas and wastewater discharge interface. The hydrogen fuel cell power generation system further includes a waste discharge main pipe and waste discharge branch pipes. The output end of the waste discharge main pipe is communicated with the outside. The waste discharge port of the fuel cell stack, the exhaust gas and wastewater discharge interface, the waste discharge branch pipes and the input end of the waste discharge main pipe are communicated in sequence. There are multiple waste discharge branch pipes, which correspond to the power generation devices one by one.

[0032] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. Brief Description of the Drawings

[0033] Figure 1 is a perspective view of a hydrogen fuel cell power generation device according to an embodiment of the present utility model.

[0034] Figure 2 is a schematic structural diagram of a hydrogen fuel cell power generation device with the panel removed according to an embodiment of the present utility model.

[0035] Figure 3 is a schematic structural diagram of the back panel of a hydrogen fuel cell power generation device according to an embodiment of the present utility model.

[0036] Figure 4 is a block diagram of the control relationship between the controller and each component of a hydrogen fuel cell power generation device according to an embodiment of the present utility model.

[0037] Figure 5 is a schematic structural diagram of a hydrogen fuel cell power generation system according to an embodiment of the present utility model.

[0038] Reference Signs:

[0039] 1, cabinet, 11, frame body, 12, cover plate, 13, accommodation cavity, 14, control interface, 141, communication interface, 142, power transmission interface, 143, hydrogen transmission interface, 144, heat dissipation module external interface, 145, exhaust gas and wastewater discharge interface, 15, ventilation opening, 151, first air vent, 152, second air vent, 16, panel, 17, back panel, 171, maintenance opening, 18, side panel;

[0040] 2, power generation main body; 3, baffle; 4, first fan; 5, second fan; 6, shutter; 7, hydrogen concentration detector; 8, display screen;

[0041] 10. Power generation device;

[0042] 20. Hydrogen gas source, 201. Main gas supply pipe, 202. Branch gas supply pipe;

[0043] 30. External power supply; 40. Main liquid supply pipe; 50. Branch liquid supply pipe; 60. Main liquid discharge pipe; 70. Branch liquid discharge pipe; 80. Main waste discharge pipe; 90. Branch waste discharge pipe. Specific embodiments

[0044] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation of the present utility model.

[0045] As Figures 1 to 4 shown, a hydrogen fuel cell power generation device 10 according to an embodiment of the present utility model includes a cabinet 1 and a power generation main body 2. The cabinet 1 includes a frame 11, a surrounding plate, and a cover plate 12. The surrounding plate is installed on the frame 11 and jointly forms a receiving cavity 13 with the frame 11. The cover plate 12 is connected to the frame 11 and closes the opening of the receiving cavity 13. The cabinet 1 is provided with a control interface 14 and a ventilation opening 15 communicating with the receiving cavity 13. The control interface 14 includes at least one of a communication interface 141, a power transmission interface 142, a hydrogen gas transmission interface 143, a heat dissipation module external interface 144, and an exhaust gas and waste water discharge interface 145. The ventilation opening 15 is adapted to circulate the gas in the receiving cavity 13; the power generation main body 2 is installed in the receiving cavity 13 and connected to the control interface 14 to facilitate the connection of the power generation main body 2 to an external device.

[0046] According to the hydrogen fuel cell power generation device 10 of the embodiment of the present utility model, the cabinet 1 structure is constructed by the cooperation of the frame 11, the surrounding plate, and the cover plate 12, and the power generation main body 2 is integrated into the receiving cavity 13 of the cabinet 1. Through the control interface 14 on the cabinet 1, the convenient connection between the power generation main body 2 and an external device is realized, and the ventilation opening 15 on the cabinet 1 can exchange the gas in the receiving cavity 13 with the external air to ensure the smooth power generation work of the power generation main body 2, forming an independent cabinet 1 - type hydrogen fuel cell power generation device 10. Thus, when used in different application scenarios, developers do not need to carry out too much secondary design. By directly connecting multiple cabinet 1 - type hydrogen fuel cell power generation devices 10 in series, the output power can be doubled. Therefore, compared with the related technology, the present utility model is convenient for flexible integration and easy to expand, can meet the power output requirements of different power levels in various application scenarios, and has strong versatility.

[0047] Specifically, the height direction of the cabinet 1 can be the up and down direction in the figure. To facilitate the operation and maintenance of the power generation device 10, the height of the cabinet 1 can be greater than the length and width of the cabinet 1, that is, the cabinet 1 is a vertical cabinet, so as to reduce the floor area and facilitate later integration. Further, the height of the cabinet 1 can be higher than the height of the operator. The cabinet 1 is not limited to a cuboid cabinet structure. The cover plate 12 can include a top plate and a bottom plate, and the two ends of the accommodating cavity 13 are respectively closed by the top plate and the bottom plate. The power generation power level of the power generation main body 2 is not limited to the power level of hundreds of kilowatts.

[0048] It should be noted that the arrangement of the ventilation openings 15 on the cabinet 1 allows external air to enter the accommodating cavity 13 to provide the oxygen conditions required for the hydrogen fuel power generation of the power generation main body 2. At the same time, it can also realize the external circulation of the gas in the accommodating cavity 13, prevent hydrogen from accumulating in the accommodating cavity 13, and ensure the safe operation of the power generation device 10.

[0049] As Figures 1 to 3 shown, in some embodiments, the surrounding plate includes a front panel 16, a back panel 17 and two side panels 18. The front panel 16, the back panel 17, the two side panels 18 and the frame body 11 together surround the accommodating cavity 13. The front panel 16 is movably connected to the frame body 11 and can open or close the front of the accommodating cavity 13, and a maintenance opening 171 is provided on the back panel 17.

[0050] It can be understood that due to the structural design of the movable connection between the front panel 16 and the frame body 11 and the opening of the maintenance opening 171 on the back panel 17, compared with the related art, during maintenance, the operator does not need to take out the power generation main body 2 from the accommodating cavity 13. Only by means of the maintenance opening 171 and opening the front panel 16, the power generation main body 2 in the cabinet 1 can be maintained from two directions, which is convenient for operation.

[0051] Specifically, the front panel 16 and the back panel 17 can be arranged opposite to each other along the width direction of the cabinet 1, that is, the front panel 16 and the back panel 17 can be arranged opposite to each other along the front and back direction in the figure, and the front panel 16 is located in front of the back panel 17. The front panel 16, the back panel 17 and the side panels 18 can all extend along the height direction of the cabinet 1, that is, extend along the up and down direction in the figure. The two side panels 18 can be arranged opposite to each other along the length direction of the cabinet 1, that is, the two side panels 18 can be arranged opposite to each other along the left and right direction in the figure. The front panel 16 is pivotally connected or slidably connected to the frame body 11. Taking the figure as an example, the front panel 16 is a single-door structure, the right end of the front panel 16 is pivotally connected to the frame body 11 through a hinge shaft, and a door handle is also installed near the left end edge of the front panel 16 to facilitate opening or closing the front panel 16 on the frame body 11. The maintenance opening 171 can be opened at the middle position of the back panel 17 to facilitate the overall maintenance of the back of the power generation main body 2 from the maintenance opening 171.

[0052] As Figure 1 andFigure 2 As shown, in some embodiments, at least one of the two side plates 18 is movably connected to the frame 11 and can open or close the side of the accommodation cavity 13. Among them, one side plate 18 is movably connected to the frame 11, and the other side plate 18 is fixedly connected to the frame 11; alternatively, both side plates 18 are movably connected to the frame 11.

[0053] It can be understood that, to further facilitate the direct maintenance of each position of the power generation main body 2 directly inside the cabinet 1, it is preferred that both side plates 18 are movably connected to the frame 11. That is, through the maintenance port 171, and by opening the panel 16 and the two side plates 18, comprehensive maintenance of the entire power generation main body 2 can be achieved, with simple operation and easy maintenance.

[0054] Similarly, both side plates 18 are pivotally connected or slidably connected to the frame 11. Taking the figure as an example, the side plate 18 is a double-door structure, that is, the side plate 18 includes a first door body and a second door body. The rear end of the first door body and the front end of the second door body are both pivotally connected to the frame 11 through a hinge shaft, and a door handle can be installed on one of the first door body and the second door body to facilitate opening or closing the side plate 18 on the frame 11.

[0055] It should be noted that the selection of the specific door-opening structure of the panel 16 and the two side plates 18 can be adjusted accordingly considering the specific specifications and costs of the cabinet 1 comprehensively, and no limitation is made here.

[0056] As Figures 1 to 3 shown, in some embodiments, the hydrogen fuel cell power generation device 10 further includes a baffle 3. The baffle 3 is detachably connected to the back plate 17 and is used to block the maintenance port 171 to prevent dust and the like in the external environment from entering the accommodation cavity 13, so as to avoid the problem that the power generation main body 2 is easily eroded under long-term action.

[0057] As Figure 1 and Figure 2 shown, in some embodiments, the hydrogen fuel cell power generation device 10 further includes a first fan 4 and a second fan 5. Both the first fan 4 and the second fan 5 are installed in the accommodation cavity 13.

[0058] The ventilation opening 15 includes a first air outlet 151 and a second air outlet 152. The first air outlet 151 is located above the second air outlet 152 in the height direction of the cabinet 1. The first fan 4 is arranged adjacent to the first air outlet 151, and the second fan 5 is arranged adjacent to the second air outlet 152.

[0059] It can be understood that the cooperation of the first fan 4, the second fan 5, the first air outlet 151 and the second air outlet 152 can promote the upward flow of air in the accommodation cavity 13. Among them, the second fan 5 can suck external air into the accommodation cavity 13 of the cabinet 1 to provide oxygen for the power generation main body 2, while the first fan 4 can discharge the gas in the accommodation cavity 13 to ensure the operation safety of the power generation device 10.

[0060] Specifically, both the first fan 4 and the second fan 5 can be explosion-proof fans to ensure the use safety in the accommodation cavity 13 and ensure the normal operation of the power generation device 10.

[0061] As Figures 1 to 3 shown, in some embodiments, the control interface 14 includes a hydrogen delivery interface 143, and the first fan 4 is also arranged adjacent to the hydrogen delivery interface 143 to prevent hydrogen accumulation.

[0062] As Figure 1 and Figure 2 shown, in some embodiments, both the panel 16 and the side plate 18 include a connected first plate segment and a second plate segment. The first plate segment is located above the second plate segment in the height direction of the cabinet 1, that is, the upper parts of the panel 16 and the side plate 18 are both the first plate segments, and the lower parts of the panel 16 and the side plate 18 are both the second plate segments.

[0063] The first air outlet 151 is provided on the first plate segment of the side plate 18. The first fan 4 is located at the first air outlet 151 and is connected to the first plate segment of the side plate 18. The second air outlet 152 is provided on the second plate segment of the panel 16, and the second fan 5 is installed on the inner bottom surface of the accommodation cavity 13.

[0064] It can be understood that since the second fan 5 is located at the bottom of the accommodation cavity 13 and the first fan 4 is located at the upper part of the side plate 18, the first fan 4 and the second fan 5 are approximately arranged diagonally in space. While ensuring the upward flow of air in the accommodation cavity 13, it also makes the flow range of the entire gas in the accommodation cavity 13 wider and maximally ensures that hydrogen does not accumulate.

[0065] Specifically, taking the figure as an example, the second air outlet 152 is opened in the lower part of the panel 16, and two first air outlets 151 are opened in the upper parts of both side plates 18. The hydrogen delivery interface 143 can be arranged in the upper part of the back panel 17 and adjacent to the right-end side plate 18 of the cabinet 1. Therefore, the first fan 4 is installed at the first air outlet 151 on the right-end side plate 18 closer to the hydrogen delivery interface 143 to better force the hydrogen to circulate.

[0066] As Figure 1 and Figure 2As shown, in some embodiments, the hydrogen fuel cell power generation device 10 further includes a shutter 6. The shutter 6 is installed at the ventilation opening 15 and completely covers the ventilation opening 15 to facilitate rain and dust protection and ventilation of the accommodation cavity 13, further improving the structural performance of the power generation device 10.

[0067] As Figures 1 to 4 shown, in some embodiments, the hydrogen fuel cell power generation device 10 further includes a hydrogen concentration detector 7. The hydrogen concentration detector 7 is installed on the cover plate 12, and the detection end of the hydrogen concentration detector 7 is located on the inner top surface of the accommodation cavity 13 to monitor the hydrogen concentration in the accommodation cavity 13 by the hydrogen concentration detector 7.

[0068] As Figures 1 to 4 shown, further, the hydrogen concentration detector 7 can also be arranged adjacent to the hydrogen delivery interface 143 to further ensure the monitoring accuracy, enabling the power generation device 10 to respond in a timely manner according to the monitoring information and ensuring the safe operation of the power generation device 10.

[0069] As Figure 1 and Figure 2 shown, in some embodiments, the control interface 14 includes a power delivery interface 142. There are at least two power delivery interfaces 142. Among the two power delivery interfaces 142, one power delivery interface 142 is used to deliver high-voltage power (i.e., the high-voltage power delivery interface), and the other power delivery interface 142 is used to deliver low-voltage power (i.e., the low-voltage power delivery interface), and the distance between the two power delivery interfaces 142 is greater than 1 m (i.e., the distance between the high-voltage power delivery interface and the low-voltage power delivery interface is more than 1 m) to achieve electrical separation of the high-voltage power and low-voltage power of the power generation device 10 and improve the operation safety of the power generation device 10.

[0070] Specifically, taking the figure as an example, the power delivery interface 142 can be arranged above the left end side plate 18, that is, on the frame body 11 (since the side plate 18 needs to be able to open relative to the frame body 11, for optimizing the internal wiring layout of this part and facilitating the opening and closing of the side plate 18, it is preferred to arrange the power delivery interface 142 on the frame body 11). Among them, the low-voltage power delivery interface is located at the rear part of the corresponding frame body 11, the high-voltage power delivery interface is located at the front part of the corresponding frame body 11, and both the high-voltage power delivery interface and the low-voltage power delivery interface are located above the first air outlet 151.

[0071] As Figures 1 to 4 shown, in some embodiments, the control interface 14 includes a power delivery interface 142, a hydrogen delivery interface 143, an external interface 144 for the heat dissipation module, and an exhaust gas and wastewater discharge interface 145. The power generation main body 2 includes a fuel cell stack, an air supply module, a hydrogen supply module, a voltage conversion module, and a heat dissipation module (not shown in the figure).

[0072] Among them, the air inlet of the fuel cell stack is connected to the air supply module and the hydrogen supply module, the waste outlet of the fuel cell stack is connected to the waste gas and waste water discharge interface 145, the air supply module is connected to the outside, and the hydrogen supply module is connected to the hydrogen delivery interface 143.

[0073] Among them, the fuel cell stack is electrically connected to the input end of the voltage conversion module, and the output end of the voltage conversion module is electrically connected to the power delivery interface 142.

[0074] Among them, the heat dissipation module is in contact with the fuel cell stack, the air supply module, the hydrogen supply module and the voltage conversion module and heat transfer can occur, and the heat dissipation module is connected to the heat dissipation module external interface 144.

[0075] Specifically, the air supply module can directly obtain air from the air around the cabinet 1 and supply it to the fuel cell stack. The voltage conversion module can be a fuel cell voltage conversion device DCDC. The heat dissipation module may not be limited to including a fuel cell cooling subsystem and an auxiliary heat dissipation subsystem for heat-generating components. The heat dissipation module external interface 144 may not be limited to including the exhaust interface, the coolant delivery interface and the discharge interface of the fuel cell cooling subsystem. Taking the figure as an example, the upper part of the backplane 17 can be provided with the hydrogen delivery interface 143 and the exhaust interface of the fuel cell cooling subsystem, and the lower part of the backplane 17 can be provided with the coolant delivery and discharge interface and the waste gas and waste water discharge interface 145. It is preferable to control the layout position of the interface 14 on the cabinet 1 to correspond to the positions of the various parts of the power generation main body 2 in the accommodation cavity 13, so as to facilitate good cooperation between the two.

[0076] As Figure 1 shown, in some embodiments, the hydrogen fuel cell power generation device 10 further includes a display screen 8, and the display screen 8 is installed on the first plate segment of the panel 16, that is, the display screen 8 is installed on the upper part of the panel 16. The display screen 8 is used to display at least one parameter information among the current power of the power generation device 10, the battery output voltage, the average voltage of a single cell, the lowest voltage of a single cell, the position of the cell with the lowest single cell voltage, the standard deviation of the cell voltage, the air flow rate, the air pressure, the hydrogen pressure, the cooling water inlet temperature, the cooling water outlet temperature, the hydrogen concentration in the engine compartment, the hydrogen concentration of the battery PACK, and the insulation resistance value information of the power generation device 10.

[0077] As Figure 1 shown, further, on the first plate segment of the panel 16, a local emergency stop / start / stop operation button can also be provided below the display screen 8 to facilitate the operator to perform corresponding control operations on the power generation device 10.

[0078] As Figure 1 and Figure 4As shown, in some embodiments, the hydrogen fuel cell power generation device 10 further includes a controller, which is electrically connected to the power generation main body 2, the first fan 4, the second fan 5, the hydrogen concentration detector 7, the display screen 8, and the local emergency stop / start / stop operation button, so as to control the working conditions of each device and improve the automatic working performance of the power generation device 10.

[0079] As Figures 1 to 5 shown, a hydrogen fuel cell power generation system according to an embodiment of the present invention includes a power generation device 10 and a hydrogen gas source 20. The power generation device 10 is the power generation device 10 in any of the above embodiments. There are multiple power generation devices 10 arranged at intervals. The control interface 14 of the power generation device 10 includes a communication interface 141, a power transmission interface 142, and a hydrogen gas transmission interface 143. The communication interfaces 141 of all the power generation devices 10 are adapted to communicate with the user side, so that user instructions are sent to the controller through the respective communication interfaces 141 of the power generation devices 10 to realize the control of the operating states of the power generation devices 10. The power transmission interfaces 142 of all the power generation devices 10 are adapted to output power externally; the hydrogen gas source 20 is communicated with the hydrogen gas transmission interfaces 143 of all the power generation devices 10.

[0080] According to the hydrogen fuel cell power generation system of the embodiment of the present invention, the power generation device 10 is designed as a cabinet-type hydrogen fuel cell power generation device 10 formed by the cooperation of the cabinet 1 and the power generation main body 2, which is convenient for flexible integration and easy to expand. Therefore, compared with the related art, in the power generation system formed by multiple such power generation devices 10, since each power generation device 10 can work independently, when a certain power generation device 10 fails or the working conditions of the power generation device 10 need to be adjusted according to the actual power consumption requirements, the faulty power generation device 10 or the corresponding number of power generation devices 10 can be stopped, while the remaining power generation devices 10 continue to operate, so as to adapt to application scenarios with a variety of power level ranges, improve the flexibility of the power level output of the power generation system, and greatly enhance the power output stability of the entire power generation system.

[0081] Specifically, taking the figure as an example, the communication interface 141 can be arranged above the left end side plate 18 and beside the low-voltage power transmission interface. The specific layout methods of the multiple power generation devices 10 (including the layout spacing, the orientation during layout, the series-parallel design between the power generation devices 10, and the layout method of the power generation devices 10, etc.) can be specifically designed according to the actual layout site conditions and the power requirements of the user side, and are not limited herein.

[0082] It should be noted that when one or more of the power generation devices 10 malfunction and need to be isolated, only the hydrogen supply to the hydrogen supply module inside the faulty cabinet 1 needs to be cut off, and the faulty power generation device 10 is repaired, so that the remaining power generation devices 10 can still operate normally. In this way, the stability of the overall power output of the power generation system can be ensured without being affected by the faulty power generation device 10. Therefore, the power generation devices 10 in this power generation system do not affect each other in terms of space and function, and are easy to operate and maintain.

[0083] As Figure 5 shown, in some embodiments, the hydrogen fuel cell power generation system further includes an external power source 30, and the external power source 30 is electrically connected to each power generation device 10. The external power source 30 is adapted to provide the required starting power for the power generation device 10.

[0084] As Figure 5 shown, further, the power generation device 10 is also adapted to charge the external power source 30.

[0085] It should be noted that at the initial stage of starting up this power generation system, the external power source 30 can provide initial power for the internal electrical equipment of each power generation device 10. When the power generation device 10 is just started, the fuel cell stack cannot generate electrical energy yet. Therefore, before starting, the external power source 30 needs to supply power to the internal electrical equipment to assist the power generation device 10 to start. After the power generation device 10 starts, the fuel cell stack starts to generate electricity. When the generated electricity is sufficient to support the operation of the internal electrical equipment, the external power source 30 no longer supplies power to the internal electrical equipment. At the same time, the surplus electrical energy generated by the fuel cell stack can also charge the external power source 30.

[0086] As Figure 5 shown, in some embodiments, the hydrogen fuel cell power generation system further includes a gas supply main pipe 201 and gas supply branch pipes 202. The gas supply main pipe 201 is connected to the hydrogen gas source 20. The first end of the gas supply branch pipe 202 is connected to the gas supply main pipe 201, and the second end of the gas supply branch pipe 202 is connected to the hydrogen gas delivery interface 143 of the power generation device 10. There are multiple gas supply branch pipes 202, which correspond to the power generation devices 10 one by one, so that the hydrogen gas of this power generation system is uniformly provided by the hydrogen gas source 20 and the gas supply main pipe 201, and is respectively transported to the respective hydrogen gas delivery interfaces 143 of the power generation devices 10 through the gas supply branch pipes 202, and enters the fuel cell stack to participate in the reaction.

[0087] As Figure 3 and Figure 5 shown, in some embodiments, the back plate 17 of the power generation device 10 is provided with a coolant delivery interface and a coolant discharge interface. The hydrogen fuel cell power generation system further includes a liquid supply main pipe 40, liquid supply branch pipes 50, a liquid discharge main pipe 60, and liquid discharge branch pipes 70.

[0088] Among them, the input end of the liquid supply main pipe 40 is communicated with the coolant source, and the output end of the liquid supply main pipe 40, the liquid supply branch pipe 50, the coolant delivery interface and the coolant inlet of the heat dissipation module are communicated in sequence, so as to supply coolant to the heat dissipation module. There are multiple liquid supply branch pipes 50, which correspond to the power generation devices 10 one by one.

[0089] Among them, the output end of the liquid discharge main pipe 60 is communicated with the outside, and the coolant outlet of the heat dissipation module, the coolant discharge interface, the liquid discharge branch pipe 70 and the input end of the liquid discharge main pipe 60 are communicated in sequence, so as to discharge the coolant of the heat dissipation module. There are multiple liquid discharge branch pipes 70, which correspond to the power generation devices 10 one by one.

[0090] It can be understood that the coolant of the power generation system is uniformly provided by the coolant source, and is respectively transported into the respective coolant delivery interfaces of the power generation devices 10 through the liquid supply main pipe 40 and the liquid supply sub-pipes. When the coolant needs to be discharged after the operation of the power generation system is completed, the respective coolant discharge interfaces of the power generation devices 10 can be opened to discharge the coolant.

[0091] Such as Figure 3 and Figure 5 As shown in the figure, in some embodiments, the control interface 14 of the power generation device 10 further includes an exhaust gas and wastewater discharge interface 145. The hydrogen fuel cell power generation system further includes a waste discharge main pipe 80 and waste discharge branch pipes 90. The output end of the waste discharge main pipe 80 is communicated with the outside, and the waste discharge port of the fuel cell stack, the exhaust gas and wastewater discharge interface 145, the waste discharge branch pipes 90 and the input end of the waste discharge main pipe 80 are communicated in sequence. There are multiple waste discharge branch pipes 90, which correspond to the power generation devices 10 one by one.

[0092] It can be understood that the exhaust gas, wastewater after the reaction of oxygen and hydrogen, and the gases that need to be discharged under various operating conditions of the power generation system can be transported into the waste discharge main pipe 80 through the respective exhaust gas and wastewater discharge interfaces 145 of the power generation devices 10 and discharged.

[0093] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0094] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0095] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0096] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0097] In the present utility model, terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0098] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A hydrogen fuel cell power generation device, characterized in that: include: A cabinet, the cabinet comprising a frame, a surrounding plate and a cover plate, the surrounding plate being mounted on the frame and surrounding a receiving cavity together with the frame, the cover plate being connected to the frame and closing an opening of the receiving cavity, the cabinet being provided with a control interface and a vent communicating with the receiving cavity, the control interface comprising at least one of a communication interface, a power transmission interface, a hydrogen transmission interface, a heat dissipation module external interface and a waste gas and wastewater discharge interface, and the vent is suitable for circulating the gas in the receiving cavity; and A power generation body is installed in the accommodating cavity and connected to the control interface so that the power generation body can be connected to an external device.

2. The hydrogen fuel cell power generation device according to claim 1, characterized in that: The enclosure includes a front panel, a back panel and two side panels, wherein the front panel, the back panel, the two side panels and the frame together surround the accommodating cavity, the front panel is movably connected to the frame and can open or close the front of the accommodating cavity, and the back panel is provided with a maintenance port; And / or, at least one of the two side panels is movably connected to the frame and is capable of opening or closing a side surface of the accommodating cavity.

3. The hydrogen fuel cell power generation device according to claim 2, characterized in that: It also includes a baffle, which is detachably connected to the back plate and is used to block the maintenance port.

4. The hydrogen fuel cell power generation device according to claim 2, characterized in that: Also includes a first fan and a second fan, wherein the first fan and the second fan are both installed in the accommodating chamber; The ventilation opening includes a first air opening and a second air opening, the first air opening is located above the second air opening in the height direction of the cabinet, the first fan is arranged adjacent to the first air opening, and the second fan is arranged adjacent to the second air opening.

5. The hydrogen fuel cell power generation device according to claim 4, characterized in that: The control interface includes a hydrogen delivery interface, and the first fan is also arranged adjacent to the hydrogen delivery interface to prevent hydrogen accumulation.

6. The hydrogen fuel cell power generation device according to claim 5, characterized in that: The panel and the side panel both include a first plate segment and a second plate segment that are connected, and the first plate segment is located above the second plate segment in the height direction of the cabinet; The first plate section of the side panel is provided with the first air outlet, the first fan is located at the first air outlet and connected to the first plate section of the side panel, the second plate section of the panel is provided with the second air outlet, and the second fan is installed on the inner bottom surface of the accommodating cavity.

7. The hydrogen fuel cell power generation device according to any one of claims 1 to 6, characterized in that: It also includes a shutter, which is installed on the vent and completely covers the vent, so as to facilitate rainproof and ventilation of the accommodating cavity.

8. A hydrogen fuel cell power generation system, characterized in that: include: A power generation device, wherein the power generation device is the power generation device according to any one of claims 1 to 7, wherein the power generation device has a plurality of power generation devices and is arranged at intervals, wherein the control interface of the power generation device comprises a communication interface, a power transmission interface, and a hydrogen transmission interface, wherein the communication interfaces of all the power generation devices are suitable for communicating with a user side, and the power transmission interfaces of all the power generation devices are suitable for outputting power to the outside; and A hydrogen gas source is connected to the hydrogen delivery interfaces of all the power generation devices.

9. The hydrogen fuel cell power generation system according to claim 8, characterized in that: It also includes an external power supply, which is electrically connected to each of the power generation devices, and is suitable for providing the required starting power to the power generation device; And / or, the power generation device is further suitable for charging the external power source.

10. The hydrogen fuel cell power generation system according to claim 8 or 9, characterized in that: It also includes a gas supply main pipe and a gas supply branch pipe, the gas supply main pipe is connected to the hydrogen gas source, the first end of the gas supply branch pipe is connected to the gas supply main pipe, and the second end of the gas supply branch pipe is connected to the hydrogen delivery interface of the power generation device, and there are multiple gas supply branch pipes and they correspond one-to-one to the power generation devices.

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