80kW fuel cell engine structure

Abstract

The utility model discloses an 80kW fuel cell engine structure which comprises a cell stack, a cooling subsystem arranged at the bottom of the cell stack, a hydrogen subsystem arranged on one side of the cell stack and an air subsystem arranged on one side of the cell stack, the 80kW fuel cell engine structure comprises a cell stack and a control assembly arranged on one side of the cell stack, the bottom of the cell stack is fixedly connected with a stack connecting assembly, a hydrogen subsystem is located on one side of the cell stack, and the hydrogen subsystem comprises a hydrogen ejector assembly, a hydrogen in-stack assembly, a steam-water separator and a hydrogen out-stack assembly. By eliminating a hydrogen circulating pump and an air humidifier, the system architecture is remarkably simplified, the production cost and the maintenance cost are reduced, the complexity of the whole system is reduced, the reliability and the durability of the system are improved, meanwhile, the size and the weight of the engine are reduced through the simplified structure, and the engine is more suitable for various application scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of battery engines, in particular to a structure of an 80kW fuel cell engine. Background Art

[0002] With the increasing global attention to clean energy and environmental protection, hydrogen energy, as a clean and efficient renewable energy, has a broader and broader application prospect. As one of the important application fields of hydrogen energy, the stability of the performance and the level of efficiency of the fuel cell engine directly affect the overall application effect of hydrogen energy.

[0003] In the traditional fuel cell engine structure, key components such as a hydrogen circulation pump and an air humidifier are usually included. The hydrogen circulation pump is mainly used to recycle unreacted hydrogen to improve the utilization rate of hydrogen; while the air humidifier is used to increase the humidity of the air entering the fuel cell stack to improve the performance of the fuel cell. However, the introduction of these two components also brings some problems. First, the hydrogen circulation pump increases the complexity of the system and the maintenance cost; second, the air humidifier may cause a decrease in the performance of the fuel cell due to uneven humidification.

[0004] Therefore, in order to solve the deficiencies of the above problems, a structure of an 80kW fuel cell engine is proposed. Summary of the Invention

[0005] The utility model overcomes the deficiencies of the prior art and provides a structure of an 80kW fuel cell engine.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a structure of a kW fuel cell engine, including: a battery stack, a cooling subsystem arranged at the bottom of the battery stack, a hydrogen subsystem arranged on one side of the battery stack, an air subsystem arranged on one side of the battery stack, and a control component arranged on one side of the battery stack:

[0007] The bottom of the battery stack is fixedly connected with a stack connection component. The hydrogen subsystem is located on one side of the battery stack, and the hydrogen subsystem includes a hydrogen ejector component, a hydrogen inlet to stack component, a steam-water separator, and a hydrogen outlet from stack component;

[0008] The cooling subsystem is located below the stack connection component, and the cooling subsystem includes a first cooling water inlet to stack component, a second cooling water inlet to stack component, a water pump component, and a three-way valve component;

[0009] The air subsystem is located below the stack connection component, and the air subsystem includes an air compressor component, an air inlet flow sensor, an air inlet to stack throttle component, an air outlet from stack throttle component, a mixed exhaust device air inlet throttle component, and an intercooler component.

[0010] In a preferred embodiment of the present utility model, the control assembly includes: a fuel cell engine tailpipe mixing device, a fuel cell engine controller, a fuse box, and a high and low voltage wiring harness module.

[0011] In a preferred embodiment of the present utility model, the hydrogen ejector assembly is connected to the hydrogen inlet assembly through a pipeline, and the hydrogen inlet assembly is connected to the hydrogen inlet pipeline on one side of the battery stack.

[0012] In a preferred embodiment of the present utility model, the hydrogen outlet assembly is connected to the hydrogen outlet end on one side of the battery stack through a pipeline, and the hydrogen outlet assembly is connected to the steam separator through a pipeline.

[0013] In a preferred embodiment of the present utility model, the first cooling water inlet assembly and the second cooling water inlet assembly are respectively connected to the cooling water inlet pipeline on one side of the battery stack through pipes.

[0014] In a preferred embodiment of the present utility model, both ends of the water pump assembly are respectively connected to the first cooling water inlet assembly and the second cooling water inlet assembly through pipelines.

[0015] In a preferred embodiment of the present utility model, both ends of the three-way valve assembly are respectively connected to the first cooling water inlet assembly and the second cooling water inlet assembly through pipelines, and the other end of the three-way valve assembly is connected to the pipeline on one side of the battery stack.

[0016] In a preferred embodiment of the present utility model, the air compressor assembly is connected to the intercooler assembly through a pipeline, and the intercooler assembly is connected to the air inlet throttle valve assembly through a pipeline.

[0017] In a preferred embodiment of the present utility model, the air inlet flow sensor is arranged downstream of the air compressor assembly.

[0018] In a preferred embodiment of the present utility model, the fuel cell engine controller is electrically connected to the battery stack, the hydrogen subsystem, the cooling subsystem, the air subsystem, and the control assembly.

[0019] The present utility model solves the defects existing in the background technology, and the present utility model has the following beneficial effects:

[0020] (1) The present utility model provides an 80kW fuel cell engine structure. By canceling the hydrogen circulation pump and the air humidifier, the system architecture is significantly simplified, the production cost and the maintenance cost are reduced. Not only the complexity of the overall system is reduced, but also the reliability and durability of the system are improved. At the same time, the simplified structure also reduces the volume and weight of the engine, making it more suitable for a variety of application scenarios.

[0021] (2) The present utility model provides a structure of an 80kW fuel cell engine. Although the hydrogen circulation pump and the air humidifier are cancelled, through optimizing the layout and component configuration of the hydrogen subsystem and the air subsystem, this engine structure can still maintain a high energy conversion efficiency and excellent performance. Through the application of the hydrogen ejector assembly and the steam-water separator, the efficient utilization of hydrogen and the effective treatment of exhaust gas are ensured. Meanwhile, the cooling subsystem guarantees the stable operation and efficient heat dissipation of the fuel cell stack, further improving the performance of the entire engine.

[0022] (3) The present utility model provides a structure of an 80kW fuel cell engine. Through the hydrogen subsystem, the cooling subsystem and the air subsystem, the safety and reliability of the fuel cell engine are significantly improved. The hydrogen subsystem effectively reduces the risk of hydrogen leakage and ensures the safe discharge of exhaust gas through the steam-water separator. The efficient heat dissipation function of the cooling subsystem guarantees the stability and reliability of the fuel cell stack under long-term high-load operation. The air subsystem ensures the air quality and flow rate entering the fuel cell stack, further improving the overall performance and reliability of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0024] Figure 1 is the structure diagram of the device body from the first perspective of the preferred embodiment of the present utility model;

[0025] Figure 2 is the structure diagram of the device body from the second perspective of the preferred embodiment of the present utility model;

[0026] Figure 3 is the structure diagram of the device body from the third perspective of the preferred embodiment of the present utility model;

[0027] Figure 4 is the exploded structure diagram of the device body of the preferred embodiment of the present utility model.

[0028] In the figure: 1, fuel cell stack; 2, fuse box; 3, fuel cell engine tail exhaust mixing device; 4, air compressor assembly; 5, air inlet flow sensor; 6, fuel cell engine controller; 7, hydrogen ejector assembly; 8, air inlet throttle assembly for the fuel cell stack; 9, first cooling water inlet assembly for the fuel cell stack; 10, hydrogen outlet assembly for the fuel cell stack; 11, hydrogen inlet assembly for the fuel cell stack; 12, steam-water separator; 13, air outlet throttle assembly for the fuel cell stack; 14, second cooling water inlet assembly for the fuel cell stack; 17, air inlet throttle assembly for the mixing device; 18, water pump assembly; 19, intercooler assembly; 20, three-way valve assembly; 30, hydrogen subsystem; 40, high and low voltage wire harness module; 50, cooling subsystem; 60, air subsystem; 70, fuel cell stack connection assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present utility model will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0030] As Figure 1 shown, a structure of an 80kW fuel cell engine includes: a battery stack 1, a cooling subsystem 50 disposed at the bottom of the battery stack 1, a hydrogen subsystem 30 disposed on one side of the battery stack 1, an air subsystem 60 disposed on one side of the battery stack 1, and a control component disposed on one side of the battery stack 1:

[0031] As Figures 1 - 3 shown, a stack connection component 70 is fixedly connected to the bottom of the battery stack 1. The hydrogen subsystem 30 is located on one side of the battery stack 1, and the hydrogen subsystem 30 includes a hydrogen ejector assembly 7, a hydrogen inlet to stack assembly 11, a steam-water separator 12, and a hydrogen outlet from stack assembly 10;

[0032] The cooling subsystem 50 is located below the stack connection component 70, and the cooling subsystem 50 includes a first cooling water inlet to stack component 9, a second cooling water inlet to stack component 14, a water pump assembly 18, and a three-way valve assembly 20;

[0033] The air subsystem 60 is located below the stack connection component 70. The air subsystem 60 includes an air compressor assembly 4, an air inlet flow sensor 5, an air inlet to stack throttle component 8, an air outlet from stack throttle component 13, a mixing and exhaust device air inlet throttle component 17, and an intercooler component 19. The control component includes: a fuel cell engine tail exhaust mixing and exhaust device 3, a fuel cell engine controller 6, a fuse box 2, and a high and low voltage wiring harness module 40.

[0034] It should be noted that through the hydrogen subsystem 30, the cooling subsystem 50, the air subsystem 60, and the efficient control component, significant benefits and effects are demonstrated; firstly, this structure eliminates the hydrogen circulation pump and the air humidifier, not only simplifies the system architecture, reduces production costs, but also improves the reliability and stability of the system; secondly, the layout and component configuration of the hydrogen subsystem 30 effectively reduce the risk of hydrogen leakage, and ensure the safe discharge of exhaust gas through the steam-water separator 12, greatly enhancing the safety of the system; the efficient heat dissipation function of the cooling subsystem 50 ensures the stability and reliability of the battery stack 1 during long-term high-load operation, and extends the service life of the engine; the precise control of the air subsystem 60 ensures the air quality and flow rate entering the stack, further improving the overall performance and efficiency of the engine; finally, through the intelligent management of the fuel cell engine controller 6, the entire system can achieve efficient and clean energy conversion, providing strong support for the development of the green transportation and clean energy fields.

[0035] AsFigures 2 - 3 As shown, the hydrogen ejector assembly 7 is connected to the hydrogen inlet assembly 11 through a pipeline. The hydrogen inlet assembly 11 is connected to the hydrogen inlet pipeline on one side of the fuel cell stack 1. The hydrogen outlet assembly 10 is connected to the hydrogen outlet end pipeline on one side of the fuel cell stack 1. The hydrogen outlet assembly 10 is connected to the steam-water separator 12 through a pipeline. The first cooling water inlet assembly 9 and the second cooling water inlet assembly 14 are respectively connected to the cooling water inlet pipeline on one side of the fuel cell stack 1 through pipelines. The two ends of the water pump assembly 18 are respectively connected to the first cooling water inlet assembly 9 and the second cooling water inlet assembly 14 through pipelines.

[0036] The two ends of the three-way valve assembly 20 are respectively connected to the first cooling water inlet assembly 9 and the second cooling water inlet assembly 14 through pipelines. The other end of the three-way valve assembly 20 is connected to the pipeline on one side of the fuel cell stack 1. The air compressor assembly 4 is connected to the intercooler assembly 19 through a pipeline. The intercooler assembly 19 is connected to the air inlet throttle valve assembly 8 through a pipeline. The air inlet flow sensor 5 is arranged downstream of the air compressor assembly 4. The fuel cell engine controller 6 is electrically connected to the fuel cell stack 1, the hydrogen subsystem 30, the cooling subsystem 50, the air subsystem 60, and the control assembly.

[0037] It should be noted that the direct pipeline connection between the hydrogen ejector assembly 7 and the hydrogen inlet assembly 11 effectively improves the hydrogen supply efficiency and safety. The application of the steam-water separator 12 ensures the effective separation of moisture in the exhaust gas, enhancing the stability and safety of the system. The cooling subsystem 50 provides a stable cooling water supply for the fuel cell stack 1 through the careful configuration of the first cooling water inlet assembly 9, the second cooling water inlet assembly 14, the water pump assembly 18, and the three-way valve assembly 20. The air subsystem 60 ensures the air quality and flow rate entering the fuel cell stack through the coordinated operation of the air compressor assembly 4, the intercooler assembly 19, the air inlet throttle valve assembly 8, and the air inlet flow sensor 5, improving the system performance. Finally, the fuel cell engine controller 6 realizes the intelligent management and control of the entire system through electrical connection, improving the automation level of the system and ensuring efficient and stable energy conversion.

[0038] When the utility model is in use, the hydrogen subsystem 30 realizes the efficient supply of hydrogen and the safe discharge of exhaust gas through the coordinated operation of the hydrogen ejector assembly 7, the hydrogen inlet assembly 11, the steam-water separator 12, and the hydrogen outlet assembly 10. The direct pipeline connection between the hydrogen ejector assembly 7 and the hydrogen inlet assembly 11 improves the hydrogen supply efficiency and safety. The application of the steam-water separator 12 ensures the effective separation of moisture in the exhaust gas, further enhancing the stability and safety of the system.

[0039] Secondly, the cooling subsystem 50 provides a stable cooling water supply for the fuel cell stack 1 through the configuration of the first cooling water inlet stack assembly 9, the second cooling water inlet stack assembly 14, the water pump assembly 18, and the three-way valve assembly 20, and ensures efficient heat dissipation of the stack through intelligent regulation, ensuring the stability and reliability of the fuel cell stack 1 during long-term high-load operation and extending the service life of the engine.

[0040] The air subsystem 60, through the coordinated operation of the air compressor assembly 4, the air inlet flow sensor 5, the air inlet throttle valve assembly 8 for the stack, the air outlet throttle valve assembly 13 for the stack, the air inlet throttle valve assembly 17 for the mixing and exhaust device, and the intercooler assembly 19, ensures the air quality and flow rate entering the stack. The setting of the air inlet flow sensor 5 enables the system to monitor and adjust the air quality in real time, further improving the overall performance and efficiency of the system.

[0041] Finally, the control component realizes intelligent management and control of the entire system through the fuel cell engine tail gas mixing and exhaust device 3, the fuel cell engine controller 6, the fuse box 2, and the high and low voltage wiring harness module 40. The fuel cell engine controller 6 is electrically connected to the fuel cell stack 1, the hydrogen subsystem 30, the cooling subsystem 50, the air subsystem 60, and the control component to achieve precise control and coordination of each subsystem, improving the automation level of the system and ensuring efficient and stable energy conversion.

[0042] Based on the ideal embodiments of the present invention as inspiration, through the above description, relevant personnel can make various changes and modifications completely within the scope without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. An 80kW fuel cell engine structure, comprising: A battery stack (1), a cooling subsystem (50) disposed at the bottom of the battery stack (1), a hydrogen subsystem (30) disposed on one side of the battery stack (1), an air subsystem (60) disposed on one side of the battery stack (1), and a control component disposed on one side of the battery stack (1), characterized in that: A stack connection component (70) is fixedly connected to the bottom of the battery stack (1), the hydrogen subsystem (30) is located on one side of the battery stack (1), and the hydrogen subsystem (30) includes a hydrogen ejector component (7), a hydrogen inlet component (11), a steam-water separator (12), and a hydrogen outlet component (10); The cooling subsystem (50) is located below the stack connection component (70), and the cooling subsystem (50) includes a first cooling water inlet component (9), a second cooling water inlet component (14), a water pump component (18), and a three-way valve component (20); The air subsystem (60) is located below the stack connection component (70), and the air subsystem (60) includes an air compressor component (4), an air inlet flow sensor (5), an air inlet throttle component (8) for the stack, an air outlet throttle component (13) for the stack, a mixing and exhaust device air inlet throttle component (17), and an intercooler component (19).

2. The structure of an 80kW fuel cell engine according to claim 1, characterized in that: The control component includes: a fuel cell engine tail exhaust mixing and exhaust device (3), a fuel cell engine controller (6), a fuse box (2), and a high and low voltage wiring harness module (40).

3. The structure of an 80kW fuel cell engine according to claim 1, characterized in that: The hydrogen ejector component (7) is connected to the hydrogen inlet component (11) through a pipeline, and the hydrogen inlet component (11) is connected to the hydrogen inlet pipeline on one side of the battery stack (1).

4. A structure of an 80kW fuel cell engine according to claim 1, characterized in that: The hydrogen outlet component (10) is connected to the hydrogen outlet end on one side of the battery stack (1) through a pipeline, and the hydrogen outlet component (10) is connected to the steam-water separator (12) through a pipeline.

5. A structure of an 80kW fuel cell engine according to claim 1, characterized in that: The first cooling water inlet component (9) and the second cooling water inlet component (14) are respectively connected to the cooling water inlet pipeline on one side of the battery stack (1) through pipes.

6. The structure of an 80kW fuel cell engine according to claim 1, characterized in that: Both ends of the water pump component (18) are respectively connected to the first cooling water inlet component (9) and the second cooling water inlet component (14) through pipelines.

7. A structure of an 80kW fuel cell engine according to claim 1, characterized in that: Both ends of the three-way valve component (20) are respectively connected to the first cooling water inlet component (9) and the second cooling water inlet component (14) through pipelines, and the other end of the three-way valve component (20) is connected to one side of the battery stack (1) through a pipeline.

8. A structure of an 80kW fuel cell engine according to claim 1, characterized in that: The air compressor component (4) is connected to the intercooler component (19) through a pipeline, and the intercooler component (19) is connected to the air inlet throttle component (8) for the stack through a pipeline.

9. The structure of an 80kW fuel cell engine according to claim 1, characterized in that: The air inlet flow sensor (5) is disposed downstream of the air compressor component (4).

10. The structure of an 80kW fuel cell engine according to claim 2, characterized in that: The fuel cell engine controller (6) is electrically connected to the battery stack (1), the hydrogen subsystem (30), the cooling subsystem (50), the air subsystem (60), and the control component.

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