Fuel cell device and fuel cell system including the same

Abstract

The utility model provides a fuel cell device and a fuel cell system comprising the same, and the fuel cell device comprises a hydrogen production part, a hydrogen storage part, a fuel cell power generation part, a first flow detector, a second flow detector, a third flow detector and a fourth flow detector, an outlet of the hydrogen production part is respectively connected and communicated with an inlet of the hydrogen storage part and an inlet of the fuel cell power generation part, and an outlet of the hydrogen storage part is connected and communicated with an inlet of the fuel cell power generation part; the first flow detector is arranged at the outlet of the hydrogen production part and is used for detecting the flow at the outlet of the hydrogen production part; the second flow detector is arranged at the inlet of the hydrogen storage part and is used for detecting the flow at the inlet of the hydrogen storage part; the third flow detector is arranged at the outlet of the hydrogen storage part and is used for detecting the flow at the outlet of the hydrogen storage part; and the fourth flow detector is arranged at the inlet of the fuel cell power generation part and is used for detecting the flow at the inlet of the fuel cell power generation part.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cell systems, and particularly relates to a fuel cell device and a fuel cell system including the same. Background Art

[0002] Under the "dual carbon" goal, the development of renewable energy power generation is an inevitable trend, and the coupling of hydrogen and electricity will provide an important guarantee for the development of new energy power. At present, when a fuel cell system needs hydrogen, the hydrogen production unit produces hydrogen in real time and transports it to the fuel cell power generation system. When the output power of the fuel cell power generation system is large, the hydrogen production speed of the hydrogen production unit cannot match the hydrogen consumption speed of the fuel cell power generation system, resulting in insufficient output power of the fuel cell power generation system. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the defect that when the output power of the fuel cell power generation system is large in the prior art, the hydrogen production speed of the hydrogen production unit cannot match the hydrogen consumption speed of the fuel cell power generation system, resulting in insufficient output power of the fuel cell power generation system, and to provide a fuel cell device and a fuel cell system including the same.

[0004] The utility model solves the above technical problem by the following technical solutions:

[0005] The utility model discloses a fuel cell device, which includes a hydrogen production unit, a hydrogen storage unit, a fuel cell power generation unit, a first flow meter, a second flow meter, a third flow meter and a fourth flow meter. The outlet of the hydrogen production unit is respectively connected and communicated with the inlet of the hydrogen storage unit and the inlet of the fuel cell power generation unit. The outlet of the hydrogen storage unit is connected and communicated with the inlet of the fuel cell power generation unit.

[0006] The first flow meter is arranged at the outlet of the hydrogen production unit for detecting the flow rate at the outlet of the hydrogen production unit. The second flow meter is arranged at the inlet of the hydrogen storage unit for detecting the flow rate at the inlet of the hydrogen storage unit. The third flow meter is arranged at the outlet of the hydrogen storage unit for detecting the flow rate at the outlet of the hydrogen storage unit. The fourth flow meter is arranged at the inlet of the fuel cell power generation unit for detecting the flow rate at the inlet of the fuel cell power generation unit.

[0007] In this solution, when the output power of the fuel cell power generation unit is relatively large, resulting in a relatively large hydrogen consumption of the fuel cell power generation unit, and the hydrogen produced by the hydrogen production unit cannot meet the hydrogen consumption of the fuel cell power generation unit, the hydrogen storage unit can be connected to the fuel cell power generation unit at this time, so that the hydrogen production unit and the hydrogen storage unit can be connected to the fuel cell power generation unit at the same time, thereby meeting the hydrogen demand of the fuel cell power generation unit and enabling the output power of the fuel cell power generation unit to meet the requirements. When the output power of the fuel cell power generation unit is relatively small and the hydrogen production unit produces a large amount of hydrogen, part of the hydrogen can be supplied to the fuel cell power generation unit for power generation, and the other part can be stored in the hydrogen storage unit to prevent waste of the produced hydrogen. When the hydrogen production unit cannot work due to some reasons, hydrogen can be supplied from the hydrogen storage unit to the fuel cell power generation unit to meet the normal working requirements of the fuel cell power generation unit. With the above structural form, the usage scenarios of the fuel cell device are improved. In addition, when the outlet of the hydrogen production unit and / or the outlet of the hydrogen storage unit are connected to the inlet of the fuel cell power generation unit, the flow rate can be detected by the flow meter corresponding to the outlet and matched with the inlet flow rate of the fuel cell power generation unit to prevent air leakage in the passage and improve the usage safety.

[0008] Preferably, the fuel cell device includes a first passage, a second passage, and a third passage. The two ends of the first passage are respectively connected to the outlet of the hydrogen production unit and the inlet of the hydrogen storage unit; one end of the second passage is connected to the first passage, and the first connection point where the second passage is connected to the first passage is located between the hydrogen production unit and the hydrogen storage unit. The other end of the second passage is connected to the fuel cell power generation unit; one end of the third passage is connected to the outlet of the hydrogen storage unit, and the other end of the third passage is connected to the second passage. The second connection point where the third passage is connected to the second passage is located between the first connection point and the fuel cell power generation unit.

[0009] In this solution, the connection between the hydrogen production unit and the hydrogen storage unit is realized through the first passage; the connection between the hydrogen production unit and the fuel cell power generation unit is realized through the second passage; the connection between the hydrogen storage unit and the fuel cell power generation unit is realized through the third passage.

[0010] Preferably, the fuel cell device further includes a check valve. The check valve is arranged between the first connection point and the second connection point, and the flow direction of the check valve is from the hydrogen production unit to the fuel cell power generation unit.

[0011] In this solution, with the above structural form, hydrogen can only flow from the hydrogen production unit to the fuel cell power generation unit.

[0012] Preferably, the fuel cell device further includes a first valve. The first valve is arranged on the first passage and is located between the outlet of the hydrogen production unit and the first connection point for controlling the on-off of the first passage;

[0013] And / or, the fuel cell device further includes a second valve, which is arranged on the first passage and located between the first connection point and the inlet of the hydrogen storage part, and is used to control the on / off of the first passage;

[0014] And / or, the fuel cell device further includes a third valve, which is arranged on the third passage and located between the outlet of the hydrogen storage part and the second connection point, and is used to control the on / off of the third passage.

[0015] In this solution, adopting the above structural form improves the controllability of the first passage and / or the second passage and / or the third passage.

[0016] Preferably, the fuel cell device further includes a fourth valve, which is arranged between the first connection point and the second connection point, and the fourth valve is used to control the on / off of the second passage.

[0017] In this solution, adopting the above structural form improves the controllability of the second passage through the fourth valve.

[0018] Preferably, the fourth valve is a bypass valve.

[0019] Preferably, the fuel cell device further includes a detection part and a control part. The detection part is used to detect the hydrogen consumption of the fuel cell power generation part and send the detection result of the detection part to the control part. The control part controls the on / off of the first passage, the second passage and the third passage according to the detection result.

[0020] Preferably, the fuel cell device further includes a first pressure sensor, which is arranged at the inlet of the hydrogen production part and is used to detect the pressure at the inlet of the hydrogen production part;

[0021] And / or, the fuel cell device further includes a second pressure sensor, which is arranged at the inlet of the hydrogen storage part and is used to detect the pressure at the inlet of the hydrogen storage part;

[0022] And / or, the fuel cell device further includes a third pressure sensor, which is arranged at the inlet of the fuel cell power generation part and is used to detect the pressure at the inlet of the fuel cell power generation part.

[0023] In this solution, adopting the above structural form improves the use safety.

[0024] Preferably, the hydrogen storage part includes a high-pressure container, and both the inlet and the outlet of the hydrogen storage part are arranged on the high-pressure container.

[0025] In this solution, by adopting the above structural form, the overall structural compactness of the fuel cell device is improved.

[0026] The present utility model further discloses a fuel cell system, and the fuel cell system includes the fuel cell device as described in any one of the above.

[0027] In this solution, by adopting the above structural form, when the output power of the fuel cell power generation part is relatively large, resulting in a relatively large hydrogen consumption of the fuel cell power generation part, and the hydrogen produced by the hydrogen production part cannot meet the hydrogen consumption of the fuel cell power generation part, at this time, the hydrogen storage part can be connected to the fuel cell power generation part, so that the hydrogen production part and the hydrogen storage part can be connected to the fuel cell power generation part simultaneously, thereby meeting the hydrogen demand of the fuel cell power generation part and enabling the output power of the fuel cell power generation part to meet the requirements. When the output power of the fuel cell power generation part is relatively small, and the hydrogen production part produces a large amount of hydrogen, at this time, part of the hydrogen can be supplied to the fuel cell power generation part for power generation, and the other part can be stored in the hydrogen storage part to prevent waste of the produced hydrogen. When the hydrogen production part cannot work due to some reasons, hydrogen can be supplied from the hydrogen storage part to the fuel cell power generation part to meet the normal working requirements of the fuel cell power generation part. By adopting the above structural form, the usage scenarios of the fuel cell device are increased. In addition, when the outlet of the hydrogen production part and / or the outlet of the hydrogen storage part are connected to the inlet of the fuel cell power generation part, the flow rate can be detected by the flow meter corresponding to the outlet and matched with the inlet flow rate of the fuel cell power generation part to prevent air leakage in the passage, thereby improving the usage safety.

[0028] The positive and progressive effects of the present utility model are as follows:

[0029] When the output power of the fuel cell power generation part is relatively large, resulting in a relatively large hydrogen consumption of the fuel cell power generation part, and the hydrogen produced by the hydrogen production part cannot meet the hydrogen consumption of the fuel cell power generation part, at this time, the hydrogen storage part can be connected to the fuel cell power generation part, so that the hydrogen production part and the hydrogen storage part can be connected to the fuel cell power generation part simultaneously, thereby meeting the hydrogen demand of the fuel cell power generation part and enabling the output power of the fuel cell power generation part to meet the requirements. When the output power of the fuel cell power generation part is relatively small, and the hydrogen production part produces a large amount of hydrogen, at this time, part of the hydrogen can be supplied to the fuel cell power generation part for power generation, and the other part can be stored in the hydrogen storage part to prevent waste of the produced hydrogen. When the hydrogen production part cannot work due to some reasons, hydrogen can be supplied from the hydrogen storage part to the fuel cell power generation part to meet the normal working requirements of the fuel cell power generation part. By adopting the above structural form, the usage scenarios of the fuel cell device are increased. In addition, when the outlet of the hydrogen production part and / or the outlet of the hydrogen storage part are connected to the inlet of the fuel cell power generation part, the flow rate can be detected by the flow meter corresponding to the outlet and matched with the inlet flow rate of the fuel cell power generation part to prevent air leakage in the passage, thereby improving the usage safety. Brief Description of the Drawings

[0030] Figure 1 It is a schematic diagram of the fuel cell device according to an embodiment of the present utility model.

[0031] Figure 2 It is a partial structural schematic diagram (one) of the fuel cell device according to an embodiment of the present utility model.

[0032] Figure 3 It is a partial structural schematic diagram (two) of the fuel cell device according to an embodiment of the present utility model.

[0033] Figure 4 It is a partial structural schematic diagram (three) of the fuel cell device according to an embodiment of the present utility model.

[0034] Figure 5 It is a partial structural schematic diagram (four) of the fuel cell device according to an embodiment of the present utility model.

[0035] Figure 6 It is a partial structural schematic diagram (five) of the fuel cell device according to an embodiment of the present utility model.

[0036] Description of the reference numerals:

[0037] Fuel cell device 100

[0038] Hydrogen production unit 1

[0039] First pressure sensor 2

[0040] First valve 3

[0041] First flow meter 4

[0042] Second valve 5

[0043] Second flow meter 6

[0044] Second pressure sensor 7

[0045] Hydrogen storage unit 8

[0046] Fourth valve 9

[0047] Check valve 10

[0048] Fourth flow meter 11

[0049] Third pressure sensor 12

[0050] Fuel cell power generation unit 13

[0051] Third valve 15 Detailed Description of the Invention

[0052] Next, a preferred embodiment will be given and in combination with the attached Figure 1To more clearly and completely illustrate the present utility model.

[0053] As Figures 1 to 6 shown, this embodiment provides a fuel cell device 100. The fuel cell device 100 includes a hydrogen generation part 1, a hydrogen storage part 8, a fuel cell power generation part 13, a first flow meter 4, a second flow meter 6, a third flow meter, and a fourth flow meter 11. The outlet of the hydrogen generation part 1 is respectively connected and communicated with the inlet of the hydrogen storage part 8 and the inlet of the fuel cell power generation part 13. The outlet of the hydrogen storage part 8 is connected and communicated with the inlet of the fuel cell power generation part 13. The first flow meter 4 is arranged at the outlet of the hydrogen generation part 1 for detecting the flow rate at the outlet of the hydrogen generation part 1. The second flow meter 6 is arranged at the inlet of the hydrogen storage part 8 for detecting the flow rate at the inlet of the hydrogen storage part 8. The third flow meter is arranged at the outlet of the hydrogen storage part 8 for detecting the flow rate at the outlet of the hydrogen storage part 8. The fourth flow meter 11 is arranged at the inlet of the fuel cell power generation part 13 for detecting the flow rate at the inlet of the fuel cell power generation part 13. Specifically, when the output power of the fuel cell power generation part 13 is relatively large, resulting in a large hydrogen consumption of the fuel cell power generation part 13, and the hydrogen produced by the hydrogen generation part 1 cannot meet the hydrogen consumption of the fuel cell power generation part, at this time, the hydrogen storage part 8 can be connected to the fuel cell power generation part 13, so that the hydrogen generation part 1 and the hydrogen storage part 8 can be simultaneously connected to the fuel cell power generation part 13, thereby meeting the hydrogen demand of the fuel cell power generation part 13 and enabling the output power of the fuel cell power generation part 13 to meet the requirements. When the output power of the fuel cell power generation part 13 is relatively small, and the hydrogen generation part 1 produces a lot of hydrogen, at this time, part of the hydrogen can be supplied to the fuel cell power generation part 13 for power generation, and the other part can be stored in the hydrogen storage part 8 to prevent waste of the produced hydrogen. When the hydrogen generation part 1 cannot work due to some reasons, hydrogen can be supplied from the hydrogen storage part 8 to the fuel cell power generation part 13 to meet the normal working requirements of the fuel cell power generation part 13. With the above structural form, the usage scenarios of the fuel cell device 100 are improved. In addition, when the outlet of the hydrogen generation part 1 and / or the outlet of the hydrogen storage part 8 is connected to the inlet of the fuel cell power generation part 13, the flow rate can be detected by the flow meter corresponding to the outlet and matched with the inlet flow rate of the fuel cell power generation part 13 to prevent air leakage in the passage and improve the safety of use.

[0054] The fuel cell device 100 includes a first passage, a second passage, and a third passage. Both ends of the first passage are respectively connected to the outlet of the hydrogen generation unit 1 and the inlet of the hydrogen storage unit 8; one end of the second passage is connected to the first passage, and the first connection point where the second passage is connected to the first passage is located between the hydrogen generation unit 1 and the hydrogen storage unit 8, and the other end of the second passage is connected to the fuel cell power generation unit 13; one end of the third passage is connected to the outlet of the hydrogen storage unit 8, and the other end of the third passage is connected to the second passage, and the second connection point where the third passage is connected to the second passage is located between the first connection point and the fuel cell power generation unit 13. Specifically, the hydrogen generation unit 1 and the hydrogen storage unit 8 are connected through the first passage; the hydrogen generation unit 1 and the fuel cell power generation unit 13 are connected through the second passage; the hydrogen storage unit 8 and the fuel cell power generation unit 13 are connected through the third passage.

[0055] The fuel cell device 100 further includes a one-way valve 10. The one-way valve 10 is provided between the first connection point and the second connection point, and the flow direction of the one-way valve 10 is from the hydrogen generation unit 1 to the fuel cell power generation unit 13. With the above structural form, hydrogen can only flow from the hydrogen generation unit 1 to the fuel cell power generation unit 13.

[0056] In other embodiments, the installation position of the one-way valve 10 can be adjusted according to actual needs and is not limited herein.

[0057] The fuel cell device 100 further includes a first valve 3. The first valve 3 is provided on the first passage and is located between the outlet of the hydrogen generation unit 1 and the first connection point, and is used to control the on / off of the first passage; the fuel cell device 100 further includes a second valve 5. The second valve 5 is provided on the first passage and is located between the first connection point and the inlet of the hydrogen storage unit 8, and is used to control the on / off of the first passage; the fuel cell device 100 further includes a third valve 15. The third valve 15 is provided on the third passage and is located between the outlet of the hydrogen storage unit 8 and the second connection point, and is used to control the on / off of the third passage. With the above structural form, the controllability of the first passage, the second passage, and the third passage is improved.

[0058] In other embodiments, only the first valve 3 can be provided, or only the second valve 5 can be provided, or only the third valve 15 can be provided. The number of valves provided is not limited herein.

[0059] The fuel cell device 100 further includes a fourth valve 9. The fourth valve 9 is provided between the first connection point and the second connection point, and the fourth valve 9 is used to control the on / off of the second passage. With the above structural form, the controllability of the second passage is improved through the fourth valve 9.

[0060] In this embodiment, the fourth valve 9 is a bypass valve. In other embodiments, the type of the fourth valve 9 can be adjusted according to actual needs and is not limited herein.

[0061] The fuel cell device 100 further includes a detection unit and a control unit. The detection unit is configured to detect the hydrogen consumption of the fuel cell power generation unit 13 and send the detection result of the detection unit to the control unit. The control unit controls the on / off of the first passage, the second passage, and the third passage according to the detection result. With the above structure, the connection between the hydrogen production system and / or the hydrogen storage system and the fuel cell power generation unit 13 can be controlled according to the detection result, improving the intelligence of the fuel cell device 100.

[0062] The fuel cell device 100 further includes a first pressure sensor 2 provided at the inlet of the hydrogen production unit 1 for detecting the pressure at the inlet of the hydrogen production unit 1; the fuel cell device 100 further includes a second pressure sensor 7 provided at the inlet of the hydrogen storage unit 8 for detecting the pressure at the inlet of the hydrogen storage unit 8; the fuel cell device 100 further includes a third pressure sensor 12 provided at the inlet of the fuel cell power generation unit 13 for detecting the pressure at the inlet of the fuel cell power generation unit 13. With the above structure, the safety of use is improved.

[0063] The hydrogen storage unit 8 includes a high-pressure container, and both the inlet and the outlet of the hydrogen storage unit 8 are provided on the high-pressure container. With the above structure, the overall structural compactness of the fuel cell device 100 is improved.

[0064] This embodiment provides a fuel cell system, and the fuel cell system includes a fuel cell device 100. With the above structure, when the output power of the fuel cell power generation unit 13 is large, resulting in a large hydrogen consumption of the fuel cell power generation unit 13, and the hydrogen produced by the hydrogen production unit 1 cannot meet the hydrogen consumption of the fuel cell power generation unit 13, at this time, the hydrogen storage unit 8 can be connected to the fuel cell power generation unit 13, so that the hydrogen production unit 1 and the hydrogen storage unit 8 can be connected to the fuel cell power generation unit 13 simultaneously, thereby meeting the hydrogen demand of the fuel cell power generation unit 13 and enabling the output power of the fuel cell power generation unit 13 to meet the requirements. When the output power of the fuel cell power generation unit 13 is small, and the hydrogen production unit 1 produces a lot of hydrogen, at this time, part of the hydrogen can be supplied to the fuel cell power generation unit 13 for power generation, and the other part can be stored in the hydrogen storage unit 8 to prevent waste of the produced hydrogen. When the hydrogen production unit 1 cannot work due to some reasons, hydrogen can be supplied from the hydrogen storage unit 8 to the fuel cell power generation unit 13 to meet the normal working requirements of the fuel cell power generation unit 13. With the above structure, the usage scenarios of the fuel cell device are improved. In addition, when the outlet of the hydrogen production unit 1 and / or the outlet of the hydrogen storage unit 8 are connected to the inlet of the fuel cell power generation unit 13, the flow rate can be detected by the flow meter corresponding to the outlet and matched with the inlet flow rate of the fuel cell power generation unit 13 to prevent air leakage in the passage and improve the safety of use.

[0065] Although the specific embodiments of the present utility model have been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present utility model is defined by the appended claims. Without departing from the principle and essence of the present utility model, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. A fuel cell device, characterized in that, The fuel cell device includes a hydrogen generation section, a hydrogen storage section, a fuel cell power generation section, a first flow detector, a second flow detector, a third flow detector, and a fourth flow detector. The outlet of the hydrogen generation section is respectively connected and communicated with the inlet of the hydrogen storage section and the inlet of the fuel cell power generation section. The outlet of the hydrogen storage section is connected and communicated with the inlet of the fuel cell power generation section; The first flow detector is arranged at the outlet of the hydrogen generation section and is used for detecting the flow rate at the outlet of the hydrogen generation section; the second flow detector is arranged at the inlet of the hydrogen storage section and is used for detecting the flow rate at the inlet of the hydrogen storage section; the third flow detector is arranged at the outlet of the hydrogen storage section and is used for detecting the flow rate at the outlet of the hydrogen storage section; the fourth flow detector is arranged at the inlet of the fuel cell power generation section and is used for detecting the flow rate at the inlet of the fuel cell power generation section.

2. The fuel cell device according to claim 1, characterized in that, The fuel cell device includes a first passage, a second passage, and a third passage. The two ends of the first passage are respectively connected to the outlet of the hydrogen generation section and the inlet of the hydrogen storage section; one end of the second passage is connected to the first passage, and the first connection point where the second passage is connected to the first passage is located between the hydrogen generation section and the hydrogen storage section. The other end of the second passage is connected to the fuel cell power generation section; one end of the third passage is connected to the outlet of the hydrogen storage section, and the other end of the third passage is connected to the second passage. The second connection point where the third passage is connected to the second passage is located between the first connection point and the fuel cell power generation section.

3. The fuel cell device according to claim 2, wherein The fuel cell device further includes a check valve. The check valve is arranged between the first connection point and the second connection point, and the flow direction of the check valve is from the hydrogen generation section to the fuel cell power generation section.

4. The fuel cell device according to claim 2, wherein The fuel cell device further includes a first valve. The first valve is arranged on the first passage and is located between the outlet of the hydrogen generation section and the first connection point, and is used for controlling the on-off of the first passage; and / or, the fuel cell device further includes a second valve. The second valve is arranged on the first passage and is located between the first connection point and the inlet of the hydrogen storage section, and is used for controlling the on-off of the first passage; and / or, the fuel cell device further includes a third valve. The third valve is arranged on the third passage and is located between the outlet of the hydrogen storage section and the second connection point, and is used for controlling the on-off of the third passage.

5. The fuel cell device according to claim 2, wherein, The fuel cell device further includes a fourth valve. The fourth valve is arranged between the first connection point and the second connection point, and the fourth valve is used for controlling the on-off of the second passage.

6. The fuel cell device according to claim 5, wherein The fourth valve is a bypass valve.

7. The fuel cell device according to claim 2, wherein, The fuel cell device further includes a detection section and a control section. The detection section is used for detecting the hydrogen consumption of the fuel cell power generation section and sending the detection result of the detection section to the control section. The control section controls the on-off of the first passage, the second passage, and the third passage according to the detection result.

8. The fuel cell device according to claim 1, characterized in that, The fuel cell device further includes a first pressure sensor disposed at the inlet of the hydrogen generation section for detecting the pressure at the inlet of the hydrogen generation section; and / or, the fuel cell device further includes a second pressure sensor disposed at the inlet of the hydrogen storage section for detecting the pressure at the inlet of the hydrogen storage section; and / or, the fuel cell device further includes a third pressure sensor disposed at the inlet of the fuel cell power generation section for detecting the pressure at the inlet of the fuel cell power generation section.

9. The fuel cell device according to claim 1, wherein The hydrogen storage section includes a high-pressure container, and both the inlet and the outlet of the hydrogen storage section are provided on the high-pressure container.

10. A fuel cell system, characterized in that, The fuel cell system includes the fuel cell device according to any one of claims 1-9.

Images