CN215644594U - Hydrogen storage system and fuel cell vehicle - Google Patents

Hydrogen storage system and fuel cell vehicle Download PDF

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Publication number
CN215644594U
CN215644594U CN202121444292.XU CN202121444292U CN215644594U CN 215644594 U CN215644594 U CN 215644594U CN 202121444292 U CN202121444292 U CN 202121444292U CN 215644594 U CN215644594 U CN 215644594U
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hydrogen storage
exhaust pipeline
storage system
capacitance detection
capacitance
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赵朝善
李明阳
赵强
王彦波
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Weichai Power Co Ltd
Weichai New Energy Technology Co Ltd
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Weichai Power Co Ltd
Weichai New Energy Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

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Abstract

The utility model discloses a hydrogen storage system and a fuel cell vehicle, and relates to the technical field of fuel cell vehicles. The hydrogen storage system comprises a hydrogen storage bottle and an exhaust pipeline, wherein the hydrogen storage bottle comprises a bottle mouth combination valve, the bottle mouth combination valve is connected with the exhaust pipeline, one end of the exhaust pipeline is connected with an air compressor, the other end of the exhaust pipeline is communicated with the atmosphere, a plurality of capacitance detection modules are arranged in the exhaust pipeline, the capacitance detection modules are arranged at different positions of the exhaust pipeline, and the capacitance detection modules are used for detecting the capacitance of a medium at the corresponding positions; the air compressor can sweep the exhaust pipeline according to the detection result of the capacitance detection module. The hydrogen storage system can monitor the accumulated water and icing condition in the exhaust pipeline in real time, and controls the purging strategy of the exhaust pipeline according to the detection result, so that the maintenance efficiency and the safety performance of the hydrogen storage system are improved.

Description

Hydrogen storage system and fuel cell vehicle
Technical Field
The utility model relates to the technical field of fuel cell vehicles, in particular to a hydrogen storage system and a fuel cell vehicle.
Background
The fuel cell is a chemical device which directly converts chemical energy of fuel into electric energy through electrochemical reaction, and the fuel cell has become a new power device of a new energy vehicle in order to realize the functions of energy conservation and environmental protection.
When fire disaster occurs and other special conditions occur, in order to avoid explosion of the hydrogen storage bottle and the internal hydrogen due to overhigh temperature, high-pressure hydrogen in the hydrogen storage bottle of the hydrogen storage system needs to be rapidly discharged, at the moment, the pressure release device PRD of the bottleneck combination valve is activated, and the hydrogen enters the exhaust pipeline from the hydrogen storage bottle through the bottleneck combination valve PRD and is discharged from an exhaust port of the exhaust pipeline. In order to ensure the safety of the hydrogen storage system, hydrogen is required to be discharged in time through the exhaust pipeline, accumulated water cannot exist in the exhaust pipeline, and water cannot enter the PRD cavity through the exhaust pipeline. Water, dust and other impurities enter the exhaust pipeline and can affect the normal discharge of hydrogen. If water enters the PRD cavity, the water freezes and expands under the cold condition, so that other damages such as damage of PRD fixed threads and the like are caused, hydrogen leakage is caused, and the safety of a hydrogen storage system is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hydrogen storage system and a fuel cell vehicle, which can detect the ice water condition in an exhaust pipeline in time and purge the exhaust pipeline according to the detection result.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a hydrogen storage system comprises a hydrogen storage bottle and an exhaust pipeline, wherein the hydrogen storage bottle comprises a bottle mouth combination valve, the bottle mouth combination valve is connected with the exhaust pipeline, one end of the exhaust pipeline is connected with an air compressor, the other end of the exhaust pipeline is communicated with the atmosphere, a plurality of capacitance detection modules are arranged in the exhaust pipeline, the capacitance detection modules are arranged at different positions of the exhaust pipeline, and the capacitance detection modules are used for detecting the capacitance of a medium at the corresponding positions; the air compressor can blow the exhaust pipeline according to the detection result of the capacitance detection module.
Optionally, the capacitance detection module includes a first capacitance plate and a second capacitance plate, and the first capacitance plate and the second capacitance plate are respectively disposed on two opposite sides of the exhaust pipeline.
Optionally, the capacitance detection module further includes a capacitance detection unit, and the capacitance detection unit is configured to detect a capacitance between the first capacitance plate and the second capacitance plate.
Optionally, the capacitance detection module includes a cylindrical capacitor structure, an outer diameter of the cylindrical capacitor structure is the same as an inner diameter of the exhaust pipe, and the cylindrical capacitor structure is embedded in the exhaust pipe.
Optionally, the capacitance detection module includes an arc-shaped capacitance structure, an outer diameter of the arc-shaped capacitance structure is the same as an inner diameter of the exhaust pipeline, and the two arc-shaped capacitance structures are respectively disposed on two opposite sides in the exhaust pipeline.
Optionally, a deicing module is further arranged in the exhaust pipeline, and the deicing module is used for melting ice in the exhaust pipeline.
Optionally, the ice melting module comprises a heater.
Optionally, the number of the ice melting modules is multiple, and the ice melting modules and the capacitance detection modules are arranged in a one-to-one correspondence manner; or the like, or, alternatively,
the number of the ice melting modules is one, and one ice melting module is positioned between the air compressor and the exhaust pipeline.
Optionally, the air compressor is connected to the exhaust line through a solenoid valve, and the solenoid valve is used to control a purging mode of the air compressor.
A fuel cell vehicle comprises the hydrogen storage system and a console as described in any one of the above, wherein the console is provided with a first control switch and a signal transmission unit, the air compressor is electrically connected with the first control switch, and the capacitance detection module is in communication connection with the signal transmission unit.
The utility model has the beneficial effects that:
according to the hydrogen storage system provided by the utility model, the plurality of capacitance detection modules are arranged in the exhaust pipeline, so that the accumulated water and icing conditions of all positions of the exhaust pipeline can be detected in real time, and the air compressor is controlled to purge the exhaust pipeline according to the detection result of the capacitance detection modules. The hydrogen storage system can monitor accumulated water and icing conditions in the exhaust pipeline in real time, and controls the purging strategy of the exhaust pipeline according to the detection result, so that water in the exhaust pipeline is effectively prevented from entering the bottle mouth combination valve PRD cavity of the hydrogen storage bottle, and icing and expansion are caused at a lower temperature to damage PRD fixed threads or other components; the maintenance efficiency and the safety performance of the hydrogen storage system are improved.
The fuel cell vehicle provided by the utility model adopts the exhaust device of the hydrogen storage system, the hydrogen storage system provides hydrogen for the fuel cell, and the hydrogen is exhausted through the exhaust pipeline when special conditions such as fire disaster occur. The capacitance detection module can detect accumulated water and icing conditions of all positions in the exhaust pipeline in real time, and the air compressor sweeps the exhaust pipeline according to the detection result of the capacitance detection module, so that the exhaust pipeline is prevented from being blocked or PRD fixed threads and other parts are prevented from being damaged, the safety of a hydrogen storage system is prevented from being influenced, and the safety performance of a fuel cell vehicle is improved.
Drawings
FIG. 1 is a schematic diagram of a hydrogen storage system provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of a capacitance detection module according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the relationship between water content and capacitance provided by an embodiment of the present invention;
fig. 4 is a control schematic diagram of a fuel cell vehicle according to an embodiment of the present invention.
In the figure:
101. a signal transmission unit; 102. a calculation storage unit; 103. a data analysis unit; 104. a control unit; 105. a display screen;
1. an air compressor; 2. an electromagnetic valve; 3. a one-way valve; 5. a capacitance detection module; 6. an ice melting module; 7. an exhaust line; 8. an exhaust port; 9. a three-way valve; 10. a high pressure hose; 11. a medium;
41. a first-size bottleneck combination valve; 42. a second bottle mouth combination valve; 43. a third bottleneck combination valve; 44. a fourth bottle mouth combination valve; 51. a first capacitor plate; 52. a second capacitor plate; 71. a main pipeline; 72. and a branch pipeline.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1, the present embodiment provides a hydrogen storage system, which includes a hydrogen storage bottle and an exhaust pipe 7, wherein the hydrogen storage bottle includes a bottle mouth combination valve, the bottle mouth combination valve is communicated with the exhaust pipe 7, one end of the exhaust pipe 7 is connected to an air compressor 1, and the other end is communicated with the atmosphere. The exhaust pipeline 7 is internally provided with a plurality of capacitance detection modules 5, the plurality of capacitance detection modules 5 are arranged at different positions of the exhaust pipeline 7, and the capacitance detection modules are used for detecting the capacitance of the medium 11 at the corresponding positions; the air compressor 1 can purge the exhaust line 7 according to the detection result of the capacitance detection module 5.
The hydrogen storage system provided by this embodiment can detect the ponding and the icing condition of each position of exhaust pipe 7 in real time by setting up a plurality of capacitance detection module 5 in exhaust pipe 7 to according to the testing result of capacitance detection module 5, control air compressor 1 and sweep exhaust pipe 7. The hydrogen storage system can monitor the accumulated water and icing condition in the exhaust pipeline 7 in real time, and controls the purging strategy of the exhaust pipeline 7 according to the detection result, so that the water in the exhaust pipeline 7 is effectively prevented from entering the PRD cavity of the bottle mouth combination valve of the hydrogen storage bottle, and the PRD fixed thread or other parts are damaged due to icing and expansion at a lower temperature; the maintenance efficiency and the safety performance of the hydrogen storage system are improved.
The exhaust pipeline 7 comprises a main pipeline 71 and branch pipelines 72, the main pipeline 71 and the branch pipelines are horizontally arranged, the number of the hydrogen storage bottles is four, and four bottleneck combination valves of the four hydrogen storage bottles are respectively a first bottleneck combination valve 41, a second bottleneck combination valve 42, a third bottleneck combination valve 43 and a fourth bottleneck combination valve 44. The four mouthpiece combination valves are connected to a main pipe 71 through branch pipes 72, and the air compressor 1 is connected to the one-size mouthpiece combination valve 41 through a three-way valve 9. The capacitance detection module 5 can be installed at each water accumulation prone position in the main pipeline 71. In the present embodiment, the capacitance detecting module 5 is provided with a sensor disposed at a position close to the exhaust port 8 of the exhaust duct 7, and the capacitance detecting module 5 can detect rain and snow once they enter the exhaust duct 7. Of course, in other embodiments, a plurality of capacitance detection modules 5 may be provided according to each location of water accumulation in the main pipe 71, and water accumulation and icing conditions at a plurality of locations may be detected simultaneously.
Optionally, the air compressor 1 is connected to the exhaust line 7 through a solenoid valve 2, and the solenoid valve 2 is used for controlling the purging mode of the air compressor 1. In the embodiment, the exhaust pipeline 7 is purged by adopting a pulse purging mode, the electromagnetic valve 2 is opened for five seconds, closed for one second and then opened for five seconds, six seconds is taken as a cycle, each purging cycle is performed for ten times, namely, each purging cycle is suspended for one second every five seconds, then purging is performed for five seconds again, and each purging time lasts for one minute, and one second is suspended for one second every five seconds. The water in the exhaust line 7 after five seconds of purging is partially discharged from the exhaust port 8, and the other part rises along the branch line 72 connected to the combination valve 42 of second bottleneck, the combination valve 43 of third bottleneck, and the combination valve 44 of fourth bottleneck, and when the purging is stopped, the water is again accumulated in the horizontally arranged main line 71 by gravity. After the one second pause purge was completed, the purge was again cycled for five seconds. If the water is always purged, the water is suspended in the branch pipes 72 which are vertically arranged and cannot be discharged along the main pipe 71 which is horizontally arranged, and the pulse purging method can be adopted to blow as much water out of the exhaust pipe 7 as possible.
In this embodiment, the accumulated water area in the exhaust pipeline 7 can be calculated according to the capacitance detected by the capacitance detection module 5, and the purging time at each time is controlled according to the accumulated water area, wherein the larger the accumulated water area is, the longer the purging time at each time is; the smaller the water accumulation area is, the shorter the purging time is.
To prevent hydrogen gas from reversely entering the air compressor 1 when the hydrogen gas is discharged. A check valve 3 is also provided between the air compressor 1 and the three-way valve 9.
Optionally, the exhaust line 7 is connected to the air compressor 1 by a high pressure hose 10. To facilitate the arrangement of the air compressor 1, the air compressor 1 is connected to the discharge line 7 by a high-pressure hose 10. The relative positions of the air compressor 1 and the exhaust pipe 7 are reasonably arranged according to the internal space of the fuel cell vehicle, and the high-pressure hose 10 has certain flexibility so as to facilitate connection of the air compressor 1 and the exhaust pipe 7.
In this embodiment, a first port of the three-way valve 9 is connected to the high-pressure hose 10, a second port of the three-way valve 9 is connected to the first-type bottleneck combination valve 41, and a third port of the three-way valve 9 is connected to the exhaust pipe 7.
The capacitance detection module 5 detects the number of different mediums 11 and the same medium 11 based on the capacitance change principle. Since the media 11 in the multiphase fluid (containing impurities) have different dielectric constants, the dielectric constants change when the concentrations and amounts of the components or the phase state of the media 11 change. The composition and amount of the multiphase fluid in the exhaust pipe 7 are derived by measuring the change in capacitance value detected by the capacitance detection module 5 installed in the exhaust pipe 7.
Optionally, as shown in fig. 2, in the present embodiment, the capacitance detection module 5 includes a first capacitor plate 51 and a second capacitor plate 52, and the first capacitor plate 51 and the second capacitor plate 52 are respectively disposed on two opposite sides of the exhaust pipe 7.
Optionally, the capacitance detection module 5 comprises a capacitance detection unit for detecting the capacitance between the first capacitor plate 51 and the second capacitor plate 52. In the present embodiment, the capacitance detection unit is a multimeter, and the capacitance between the first capacitance plate 51 and the second capacitance plate 52 which are oppositely arranged is measured by the multimeter.
The capacitance calculation formula is as follows:
Figure BDA0003136652520000071
wherein ε is the dielectric constant of the dielectric 11 between the two capacitor plates; s is the dead area between the two capacitor plates; k is the electrostatic constant of the dielectric 11 between the two capacitor plates; d is the spacing between the two capacitor plates.
When the multimeter detects the capacitance between the first and second capacitive plates 51, 52, the composition and quantity of the medium 11 is derived from the calculation. As can be seen from the graph of the water content versus the capacitance shown in fig. 3, when the medium 11 is water, the capacitance increases as the amount of water increases.
In this embodiment, the first capacitor plate 51 and the second capacitor plate 52 are fixed on the upper and lower sides of the position of the main pipe 71 near the exhaust port 8, and air is filled between the first capacitor plate 51 and the second capacitor plate 52 in a normal state, so that the capacitance may fluctuate slightly, but is substantially stabilized at an approximate value C0. When a medium 11 such as water or impurities enters the exhaust pipeline 7, the dielectric constant epsilon changes, the capacitance value also changes, and the type and the quantity of the medium 11 can be deduced according to a calculation formula of the capacitance. The dielectric constants of the different media 11 are different, such as: the hydrogen gas has a dielectric constant of 1.00026, the air has a dielectric constant of 1.000585, the water vapor has a dielectric constant of 1.00785, the water has a dielectric constant of 81.5, and the ice has a dielectric constant of 2 to 3. When water, ice, impurities and the like enter the exhaust pipeline 7, the capacitance value changes and is higher than C according to different components and quantities0In this case, it can be determined that the medium 11 is mixed into the exhaust line 7. In order to avoid the interference of control signal, when the exhaust pipe 7 is not damaged by water, ice, impurities, etc. in small amount during actual useThe state quantity is marked as C0+kIs set as an initial state when C > C0+kAnd when the C is less than or equal to C, judging that the medium 11 is mixed in the exhaust pipeline 7, manually purging or automatically purging by an operator, and controlling executing parts such as the electromagnetic valve 2, the air compressor 1 and the like to purge according to different execution related purging strategies of C until C is less than or equal to C0+k。
In another alternative embodiment of the present invention, the capacitance detection module 5 includes a cylindrical capacitor structure, an outer diameter of the cylindrical capacitor structure is the same as an inner diameter of the exhaust pipe 7, and the cylindrical capacitor structure is embedded in the exhaust pipe 7.
In another optional embodiment of the present invention, the capacitance detection module 5 includes arc-shaped capacitor structures, an outer diameter of the arc-shaped capacitor structures is the same as an inner diameter of the exhaust pipe 7, and the two arc-shaped capacitor structures are respectively disposed on two opposite sides of the exhaust pipe 7.
Optionally, an ice melting module 6 is further disposed in the exhaust pipe 7, and when the capacitance detection module 5 detects that the medium 11 in the exhaust pipe 7 is ice, the ice melting module 6 is configured to melt the ice in the exhaust pipe 7. When the capacitance detection module 5 detects that ice exists in the exhaust pipeline 7, the ice melting module 6 is controlled to start working, and the ice in the exhaust pipeline 7 is gradually melted; and when the ice in the exhaust pipeline 7 is completely melted, the ice melting module 6 stops working. In this embodiment, the ice melting module 6 is disposed close to the capacitance detection module 5.
In another optional embodiment of the present invention, a plurality of capacitance detection modules 5 are provided, a plurality of ice melting modules 6 are also provided, and the plurality of ice melting modules 6 and the plurality of capacitance detection modules 5 are arranged in a one-to-one correspondence manner. When one of the capacitance detection modules 5 detects that ice exists in the exhaust pipeline 7, the ice melting module 6 corresponding to the capacitance detection module 5 is controlled to work so as to melt the ice in the exhaust pipeline 7. Or, the number of the ice melting modules 6 is one, one ice melting module 6 is located between the air compressor 1 and the exhaust pipe 7, and when the capacitance detection module 5 at any position in the exhaust pipe 7 detects that ice exists at the position corresponding to the ice melting module, the air compressor 1 and the ice melting module 6 are controlled to work simultaneously, the air compressor 1 blows air, heat generated by the ice melting module 6 is rapidly diffused to any position in the exhaust pipe 7, and the ice at any position in the exhaust pipe 7 is melted.
Optionally, ice melting module 6 comprises a heater. Of course, in other embodiments, the ice melting module 6 is not limited to the heater, and the ice melting effect can be achieved by covering or winding the insulation film.
The embodiment also provides a fuel cell vehicle, which comprises the hydrogen storage system and the console, wherein the console is provided with a first switch valve and a signal transmission unit 101, the air compressor 1 is electrically connected with the first switch valve, and the capacitance detection module 5 is in communication connection with the signal transmission unit 101.
The fuel cell vehicle provided by the embodiment employs the exhaust device of the hydrogen storage system, the hydrogen storage system provides hydrogen for the fuel cell, and the hydrogen is exhausted through the exhaust pipeline 7 when special conditions such as fire occur. The capacitance detection module 5 can detect the accumulated water and the icing condition of each position in the exhaust pipeline 7 in real time, and the air compressor 1 sweeps the exhaust pipeline 7 according to the detection result of the capacitance detection module 5, so that the exhaust pipeline 7 is prevented from being blocked or PRD fixed threads and other parts are prevented from being damaged, the safety of a hydrogen storage system is prevented from being influenced, and the safety performance of a fuel cell vehicle is improved.
In the present embodiment, the air compressor 1 directly uses the on-board air compressor of the fuel cell vehicle, saving costs.
The console of the fuel cell vehicle is also provided with a second switch valve, a third switch valve, a calculation storage unit 102 and a display screen 105, and the second control valve is electrically connected with the electromagnetic valve 2 and used for controlling the opening and closing of the electromagnetic valve 2. The third switch valve is electrically connected with the heater and used for controlling the switch of the heater. The calculation storage unit 102 is electrically connected with the signal transmission unit 101, the capacitance value detected by the capacitance detection module 5 is sent to the signal transmission unit 101, the calculation storage unit 102 deduces the type and the quantity of the medium 11 according to the received capacitance and a capacitance calculation formula stored in the capacitance calculation storage unit, and then sends a prompt to the display screen 105, if the display screen 105 prompts that ice exists in the exhaust pipeline 7, an operator controls the heater to start working through a third switch valve; until the display screen 105 prompts that ice in the exhaust pipeline 7 melts into water, an operator controls the heater to stop working through the third switch valve, then opens the air compressor 1 through the first switch valve, and purges the exhaust pipeline 7 through the electromagnetic valve 2 controlled by the second switch valve. The operator can also extend or shorten the time for the air compressor 1 to purge based on the amount of water indicated by the display screen 105.
Certainly, the fuel cell vehicle in this embodiment may also implement automatic purging, as shown in fig. 4, a console of the fuel cell vehicle is further provided with a data analysis unit 103 and a control unit 104, the calculation storage unit 102 sends the calculation result to the data analysis unit 103, the data analysis unit 103 performs analysis according to the received calculation result, sets a corresponding control strategy, and then sends the control strategy to the control unit 104, or the data analysis unit 103 directly sends the calculation result to the control unit 104, the control unit 104 includes a first switch valve, a second switch valve, and a third switch valve, and the control unit 104 controls the ice melting module 6, the electromagnetic valve 2, and the air compressor 1 to operate.
It should be noted that the operation principle of the calculation storage unit 102, the signal transmission unit 101, the data analysis unit 103 and the control unit 104 is already the prior art, and is not described herein again.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims (10)

1. A hydrogen storage system comprises a hydrogen storage bottle and an exhaust pipeline (7), wherein the hydrogen storage bottle comprises a bottle mouth combination valve, the bottle mouth combination valve is connected with the exhaust pipeline (7), the hydrogen storage system is characterized in that one end of the exhaust pipeline (7) is connected with an air compressor (1), the other end of the exhaust pipeline is communicated with the atmosphere, a plurality of capacitance detection modules (5) are arranged in the exhaust pipeline (7), the capacitance detection modules (5) are arranged at different positions of the exhaust pipeline (7), and the capacitance detection modules (5) are used for detecting the capacitance of a medium (11) at the corresponding positions; the air compressor (1) can blow the exhaust pipeline (7) according to the detection result of the capacitance detection module (5).
2. A hydrogen storage system according to claim 1, wherein the capacitance detection module (5) comprises a first capacitor plate (51) and a second capacitor plate (52), the first capacitor plate (51) and the second capacitor plate (52) being arranged on opposite sides of the exhaust line (7), respectively.
3. A hydrogen storage system according to claim 2, wherein the capacitance detection module (5) further comprises a capacitance detection unit for detecting the capacitance between the first capacitor plate (51) and the second capacitor plate (52).
4. Hydrogen storage system according to claim 1, characterized in that the capacitive detection module (5) comprises a cylindrical capacitive structure having the same outer diameter as the inner diameter of the exhaust line (7), which cylindrical capacitive structure is embedded within the exhaust line (7).
5. The hydrogen storage system according to claim 1, wherein the capacitance detection module (5) comprises arc-shaped capacitive structures having an outer diameter equal to an inner diameter of the exhaust line (7), the two arc-shaped capacitive structures being respectively disposed on opposite sides of the exhaust line (7).
6. The hydrogen storage system according to claim 1, wherein an ice melting module (6) is further arranged in the exhaust pipeline (7), and the ice melting module (6) is used for melting ice in the exhaust pipeline (7).
7. A hydrogen storage system according to claim 6, characterized in that the ice melting module (6) comprises a heater.
8. The hydrogen storage system according to claim 6, wherein the ice melting modules (6) are arranged in a plurality, and the ice melting modules (6) and the capacitance detection modules (5) are arranged in a one-to-one correspondence manner; or the like, or, alternatively,
the number of the ice melting modules (6) is one, and one ice melting module (6) is located between the air compressor (1) and the exhaust pipeline (7).
9. Hydrogen storage system according to claim 1, characterized in that the air compressor (1) is connected to the exhaust line (7) by means of a solenoid valve (2), the solenoid valve (2) being used to control the purging mode of the air compressor (1).
10. A fuel cell vehicle comprising a hydrogen storage system according to any one of claims 1 to 9 and a console, wherein the console is provided with a first control switch and a signal transmission unit (101), the air compressor (1) is electrically connected to the first control switch, and the capacitance detection module (5) is communicatively connected to the signal transmission unit (101).
CN202121444292.XU 2021-06-28 2021-06-28 Hydrogen storage system and fuel cell vehicle Active CN215644594U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114628741A (en) * 2022-03-15 2022-06-14 山东国创燃料电池技术创新中心有限公司 Testing method and testing device for water adding and exhaust of fuel cell engine
CN116404216A (en) * 2023-06-05 2023-07-07 武汉氢能与燃料电池产业技术研究院有限公司 Exhaust device of marine fuel cell

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114628741A (en) * 2022-03-15 2022-06-14 山东国创燃料电池技术创新中心有限公司 Testing method and testing device for water adding and exhaust of fuel cell engine
CN114628741B (en) * 2022-03-15 2023-10-13 山东国创燃料电池技术创新中心有限公司 Water-adding and air-exhausting test method and test device for fuel cell engine
CN116404216A (en) * 2023-06-05 2023-07-07 武汉氢能与燃料电池产业技术研究院有限公司 Exhaust device of marine fuel cell
CN116404216B (en) * 2023-06-05 2023-08-25 武汉氢能与燃料电池产业技术研究院有限公司 Exhaust device of marine fuel cell

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