CN114725470A - Fuel cell package case and control method thereof - Google Patents
Fuel cell package case and control method thereof Download PDFInfo
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- CN114725470A CN114725470A CN202210536116.1A CN202210536116A CN114725470A CN 114725470 A CN114725470 A CN 114725470A CN 202210536116 A CN202210536116 A CN 202210536116A CN 114725470 A CN114725470 A CN 114725470A
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- fuel cell
- hollow cavity
- shell
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- vacuum pump
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/2475—Enclosures, casings or containers of fuel cell stacks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04225—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during start-up
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04253—Means for solving freezing problems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
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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
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- Manufacturing & Machinery (AREA)
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention provides a fuel cell packaging shell and a control method thereof, relating to the technical field of fuel cell equipment and comprising a shell main body, an air interface, a control valve and a vacuum pump; the hollow cavity is processed in the shell body, air in the hollow cavity is pumped out by the vacuum pump, the hollow cavity is in a sealing state by the control valve, the hollow cavity reaches a certain vacuum degree, the shell body for packaging the fuel cell stack is a hollow vacuum shell, heat conduction can be greatly slowed down, the starting temperature of a fuel cell engine is guaranteed, the stability of temperature change is improved, the poor heat preservation capability of the fuel cell packaging shell in the prior art is relieved, and when the low-temperature cold start of the fuel cell engine is easily caused, the engine is started slowly, and the technical problem of influencing the service life of the fuel cell is solved.
Description
Technical Field
The invention relates to the technical field of fuel cell equipment, in particular to a fuel cell packaging shell and a control method thereof.
Background
In order to meet the protection level requirement of IP67, a fuel cell engine needs to use a closed box body to seal the electric pile; the packaging shell of the fuel cell is made of an aluminum alloy metal solid shell or a stamping metal plate.
In the prior art, the heat transfer capacity of the fuel cell packaging shell is strong, so that the heat transfer capacity between the inside and the outside of the fuel cell packaging shell is strong, and the heat preservation capacity is weak. When the fuel cell engine is cold started at low temperature in a low-temperature environment, because the heat preservation capability of the packaging shell is weak, heat generated by the engine in the starting process can be quickly conducted to the external environment, so that the temperature of the engine is slowly increased, the engine is slowly started, even water generated in the fuel cell stack is quickly frozen, the starting is failed, and the stack is damaged; in addition, when the whole fuel cell vehicle stops, after the engine stops, heat inside the packaging shell is conducted to the outside rapidly, the inside rapidly reaches the low temperature of the environment, a driver restarts the vehicle after a short time, and the starting working condition of the engine is the low-temperature cold starting working condition, so that the low-temperature cold starting working condition of the fuel cell is too frequent, the proton exchange membrane is frequently frozen and circulated, and the service life of the fuel cell is shortened.
Disclosure of Invention
The invention aims to provide a fuel cell packaging shell and a control method thereof, which are used for solving the technical problems that the heat preservation capability of the fuel cell packaging shell is poor, the engine is started slowly when the fuel cell engine is started at low temperature and in cold, and the service life of the fuel cell is influenced in the prior art.
The invention provides a fuel cell packaging shell, comprising: the device comprises a shell body, an air interface, a control valve and a vacuum pump;
the air inlet is connected with the shell body, and the air inlet is communicated with the hollow cavity;
the control valve is located on the air interface, the vacuum pump is communicated with the hollow cavity through the control valve, the vacuum pump is used for forming a vacuum state in the hollow cavity, and the control valve is used for adjusting the vacuum state and the normal pressure state of the hollow cavity to be switched.
In a preferred embodiment of the present invention, the housing main body includes a communication duct and a first shell plate;
the first shell plates are sequentially connected end to end, any two adjacent first shell plates are in sealed connection, and a sealed space for accommodating a fuel cell stack is formed by the first shell plates;
a hollow cavity is formed in each first shell plate, any two adjacent first shell plates are connected through the communication pipeline, and the communication pipeline is respectively communicated with the hollow cavities in the two first shell plates;
the air interface is communicated with the hollow cavity of any one of the first shell plates.
In a preferred embodiment of the present invention, a plurality of the communication channels are disposed between any two adjacent first shell plates, and each of the communication channels is respectively communicated with the hollow cavities in the two corresponding first shell plates.
In a preferred embodiment of the present invention, the housing main body includes a communication duct, a housing, and a second shell;
the shell is provided with an opening end, the second shell plate is positioned at the opening end of the shell and is in sealing connection with the shell, so that a sealing space for accommodating the galvanic pile is formed inside the shell;
a hollow cavity is arranged in the second shell plate in an extending mode along the inner portion of the shell, the hollow cavity is formed in the second shell plate, the communicating pipeline is respectively connected with the shell and the second shell plate, and the communicating pipeline is respectively communicated with the hollow cavities of the shell and the second shell plate;
the air interface is communicated with the hollow cavity of the shell.
In a preferred embodiment of the present invention, the control valve includes a control valve body, a first port and a second port; the vacuum pump comprises a vacuum pump body, an air inlet and an air outlet;
the control valve body is respectively connected with a first interface and a second interface, the first interface is connected with the air interface in a sealing mode, the second interface is connected with the air inlet in a sealing mode, the vacuum pump body is respectively connected with the air inlet and the air outlet, and the vacuum pump is communicated with the external environment through the air outlet.
In the preferred embodiment of the invention, the device further comprises a flexible pipeline;
the first interface is hermetically connected with the air interface through the flexible pipeline.
In the preferred embodiment of the invention, the device also comprises a pressure sensor and a controller;
the controller is respectively in electrical signal connection with the vacuum pump, the control valve and the pressure sensor, the pressure sensor is communicated with the hollow cavity, the pressure sensor is used for detecting pressure information in the hollow cavity and transmitting the pressure information to the controller, and the controller correspondingly controls the opening and closing of the control valve and the vacuum pump.
The invention provides a control method based on a fuel cell packaging shell, which comprises the following steps:
the hollow cavity has a vacuum state and a normal pressure state;
the step of the vacuum state of the hollow cavity comprises: presetting a vacuum degree pressure numerical value in the hollow cavity;
starting a control valve and a vacuum pump, and carrying out vacuum pumping operation on the hollow cavity of the shell main body;
when the pressure value in the hollow cavity is detected to reach a preset pressure value, the control valve is closed to be in a normally closed state, and the vacuum pump stops working;
the step of the normal pressure state of the hollow cavity comprises the following steps: when the vacuum pump does not work, the control valve is opened to release the pressure in the hollow cavity;
and when the pressure value in the hollow cavity is detected to reach the normal pressure value, the control valve is closed to be in a normally closed state.
In a preferred embodiment of the present invention, the hollow cavity comprises the following working states:
working condition 1: in the running process of a fuel cell engine, when the temperature of a water outlet of a fuel cell stack is a conventional steady-state value, controlling the hollow cavity to be in a normal-pressure state;
working condition 2: and in the running process of the fuel cell engine, when the temperature of the water outlet of the fuel cell stack is smaller than a conventional steady-state value, controlling the hollow cavity to be in a vacuum state.
In a preferred embodiment of the present invention, the hollow cavity further comprises the following working states:
working condition 3: when the fuel cell is to be shut down, when the temperature of the water outlet of the fuel cell stack is a conventional steady-state value, and after the fuel cell is shut down, controlling the hollow cavity to be in a vacuum state;
working condition 4: when the fuel cell is to be shut down, when the temperature of the water outlet of the fuel cell stack is smaller than a conventional steady-state value, the working condition 2 is met, and the hollow cavity is controlled to be kept in a vacuum state all the time.
The invention provides a fuel cell packaging shell, comprising: the device comprises a shell body, an air interface, a control valve and a vacuum pump; the hollow cavity is processed in the shell body, air in the hollow cavity is pumped out by the vacuum pump, the hollow cavity is in a sealing state by the control valve, the hollow cavity reaches a certain vacuum degree, the shell body for packaging the fuel cell stack is a hollow vacuum shell, heat conduction can be greatly slowed down, the starting temperature of a fuel cell engine is guaranteed, the stability of temperature change is improved, the poor heat preservation capability of the fuel cell packaging shell in the prior art is relieved, and when the low-temperature cold start of the fuel cell engine is easily caused, the engine is started slowly, and the technical problem of influencing the service life of the fuel cell is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic overall structure diagram of a fuel cell package casing according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a fuel cell package casing according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method of a fuel cell package housing according to an embodiment of the present invention.
Icon: 100-a housing body; 101-a hollow cavity; 102-a housing; 103-a second shell plate; 104-a communication conduit; 200-air interface; 300-a control valve; 400-vacuum pump; 500-a pressure sensor; 600-a controller.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, the present embodiment provides a fuel cell package casing including: a housing main body 100, an air interface 200, a control valve 300, and a vacuum pump 400; a hollow cavity 101 is arranged inside the housing main body 100, the hollow cavity 101 extends along the housing main body 100, the air interface 200 is connected with the housing main body 100, and the air interface 200 is communicated with the hollow cavity 101; the control valve 300 is located on the air interface 200, the vacuum pump 400 is communicated with the hollow cavity 101 through the control valve 300, the vacuum pump 400 is used for forming a vacuum state in the hollow cavity 101, and the control valve 300 is used for adjusting the vacuum state and the normal pressure state of the hollow cavity 101 to be switched.
It should be noted that, the fuel cell package casing provided in this embodiment can be processed to be a hollow structure through processing each side of the casing 102 of the casing main body 100 on the basis of not changing the main material of the casing main body 100, that is, the hollow cavity 101 is processed inside the casing main body 100, a closed space is formed inside the hollow cavity 101, the effect of the vacuum pump 400 is utilized to enable the inside of the hollow cavity 101 to form vacuum, and meanwhile, the control valve 300 is utilized to adjust the opening and closing of the air interface 200, so that the inside of the hollow cavity 101 can form a vacuum state or a normal pressure state, and further, under different use environments, the temperature heat conduction capability and the heat preservation capability inside the fuel cell package casing are ensured.
Specifically, in a low-temperature environment, the heat inside the fuel cell stack packaging shell is slowed or blocked from being conducted to an external environment, so that when the engine is in low-temperature cold start, the heat inside the shell main body 100 is not dissipated or is slowly dissipated, the temperature of the internal stack is rapidly increased, the success of the low-temperature cold start of the engine is ensured, and the low-temperature cold start rate of the engine is increased; meanwhile, after the vehicle is stopped, the temperature of the galvanic pile in the shell body 100 is ensured to be slowly reduced, when a driver starts the engine again after a short time, the temperature of the galvanic pile can still be at a higher temperature, at the moment, the starting speed of the engine is very quick, the proton exchange membrane can be prevented from being frequently subjected to freeze cycle, and the service life is prolonged; the temperature of the electric pile can be kept at any ambient temperature, so that the temperature of the electric pile can quickly reach the steady normal working temperature in the process of load increase, and the load increase capacity of the engine can be improved; when the electric pile reaches the normal working temperature, the hollow cavity 101 of the shell main body 100 is partially filled with air, the normal heat conduction capability of the shell main body 100 is recovered, and the normal heat emission of the engine is not influenced.
Alternatively, the control valve 300 may adopt a solenoid-operated valve 300, wherein the normal state of the control valve 300 is a normally closed state, that is, when the control valve 300 is in a normal state, the hollow cavity 101 is in a closed state, and when the control valve 300 is opened, the hollow cavity 101 can be communicated with the external environment through the air interface 200 and the vacuum pump 400.
The present embodiment provides a fuel cell package casing, including: a housing main body 100, an air interface 200, a control valve 300, and a vacuum pump 400; through having the cavity 101 with the inside processing of casing main part 100, utilize vacuum pump 400 to take out the air in the cavity 101, and utilize control valve 300 to make cavity 101 form encapsulated situation, make cavity 101 reach certain vacuum degree, thereby make the casing main part 100 of encapsulation fuel cell stack be cavity vacuum casing 102, can be very big slow down thermal conduction, the start-up temperature of fuel cell engine has been guaranteed, the stability of temperature conversion has been improved, it is poor to have alleviated the fuel cell encapsulation casing heat-preserving capability who exists among the prior art, when causing fuel cell engine low temperature cold start easily, the engine starts slowly, and influence fuel cell life's technical problem.
In addition to the above embodiments, further, since the casing main body 100 serves as a sealing structure of the fuel cell casing, the casing main body 100 may be formed by sequentially connecting a plurality of first shell plates, or may be formed by assembling a frame.
In the preferred embodiment of the present invention, the housing main body 100 includes a communication duct 104 and a first shell plate; the first shell plates are sequentially connected end to end, any two adjacent first shell plates are in sealed connection, and the first shell plates form a sealed space for accommodating a fuel cell stack; a hollow cavity 101 is formed in each first shell plate, any two adjacent first shell plates are connected through a communication pipeline 104, and the communication pipelines 104 are respectively communicated with the hollow cavities 101 in the two first shell plates; the air port 200 communicates with the hollow cavity 101 of any one of the first housing plates.
In this embodiment, six first shell plates may be provided, the six first shell plates are sequentially connected end to form a sealed shell body 100 structure, and each first shell plate is processed into a hollow structure, that is, each first shell plate is provided with a hollow cavity 101 inside, a connecting pipeline may be connected to a side wall position of the first shell plate, and two ends of the connecting pipeline respectively extend into the inside of the first shell plate, the connecting pipeline is communicated with the hollow cavities 101 in two adjacent first shell plates, so that the hollow cavities 101 of the plurality of first shell plates form a communicated integral structure, after the air interface 200 is communicated with the hollow cavity 101 of any one first shell plate 102, air in each hollow cavity 101 is extracted through the air interface 200 by using the vacuum pump 400, and finally, each first shell plate can realize that the inside is arranged in a vacuum, and heat conduction can be greatly slowed down by using the vacuum layer, and thus the heat insulating effect of the case main body 100 can be ensured.
When the volume of the first shell plate is larger, in order to ensure the rate of vacuum pumping to the plurality of first shell plates, in the preferred embodiment of the present invention, a plurality of communication channels 104 are disposed between any two adjacent first shell plates, and each communication channel 104 is respectively communicated with the hollow cavities 101 in the corresponding two first shell plates.
Alternatively, a plurality of communication conduits 104 may be arranged in parallel side-by-side.
As shown in fig. 2, in the preferred embodiment of the present invention, the housing main body 100 includes a communication duct 104, a housing 102, and a second shell plate 103; the shell 102 is provided with an open end, the second shell plate 103 is positioned at the open end of the shell 102, and the second shell plate 103 is connected with the shell 102 in a sealing manner, so that a sealing space for accommodating the galvanic pile is formed inside the shell 102; a hollow cavity 101 is arranged in the housing 102 in an extending manner, the hollow cavity 101 is arranged in the second shell plate 103, the communication pipeline 104 is respectively connected with the housing 102 and the second shell plate 103, and the communication pipeline 104 is respectively communicated with the hollow cavities 101 of the housing 102 and the second shell plate 103; the air interface 200 communicates with the hollow cavity 101 of the housing 102.
In this embodiment, the casing 102 is configured as a casing 102 with an opening at one end, each shell plate inside the casing 102 forms a communicated hollow cavity 101, that is, the hollow cavity 101 extends along the inside of the casing 102, and forms a closed state at an open end position of the casing 102, and the second shell plate 103 is hermetically connected with the open end position of the casing 102, so that a sealed space for accommodating the cell stack is formed between the second shell plate 103 and the casing 102, wherein only the communication pipe 104 is needed to communicate the hollows of the casing 102 and the second shell plate 103, and the communication pipe 104 may be provided in plurality, and the plurality of communication pipes 104 can ensure a rate of extracting air from the second shell plate 103; this embodiment forms frame structure through casing 102 to the cavity 101 of casing 102 forms an overall structure, has slowed down the use quantity of communicating pipe 104, can be better carry out the evacuation operation to the cavity 101 of casing 102, make overall design more perfect.
In a preferred embodiment of the present invention, the control valve 300 includes a control valve body, a first port, and a second port; the vacuum pump 400 includes a vacuum pump body, an air inlet, and an air outlet; the control valve body is respectively connected with a first interface and a second interface, the first interface is hermetically connected with the air interface 200, the second interface is hermetically connected with the air inlet, the vacuum pump body is respectively connected with the air inlet and the air outlet, and the vacuum pump 400 is communicated with the external environment through the air outlet.
In the preferred embodiment of the invention, the device further comprises a flexible pipeline; the first port is hermetically connected with the air port 200 through a flexible pipe.
In this embodiment, the vacuum pump 400 has two pipeline interfaces, namely an air inlet and an air outlet, the vacuum pump body is in a natural state, the air inlet and the air outlet are in a ventilation state, the control valve 300 has two air pipeline interfaces, namely a first interface and a second interface, the control valve body is in a closed state in a normal state, and the air circulation can be strictly prevented in the closed state; wherein, all inside hollow cavities 101 of casing main part 100 pass through the air interface 200 and pass through flexible pipeline with the first interface of control valve 300 and be connected, and flexible pipeline can extend the position of control valve 300 to can be better carry out reasonable position to control valve 300 and arrange, the second interface of control valve body also can be connected through the pipeline with the air inlet of vacuum pump 400, the direct atmospheric environment that communicates of vacuum pump 400 air outlet.
In the preferred embodiment of the present invention, the present invention further comprises a pressure sensor 500 and a controller 600; the controller 600 is respectively in electrical signal connection with the vacuum pump 400, the control valve 300 and the pressure sensor 500, the pressure sensor 500 is communicated with the hollow cavity 101, the pressure sensor 500 is used for detecting pressure information in the hollow cavity 101 and transmitting the pressure information to the controller 600, and the controller 600 correspondingly controls the opening and closing of the control valve 300 and the vacuum pump 400.
In this embodiment, the controller 600 may adopt an internal controller of the fuel cell engine, the pressure sensor 500 may monitor the air pressure information in the hollow cavity 101 in real time, and the fuel cell engine controller may adjust the opening and closing of the control valve 300 and the vacuum pump 400 in real time according to the air pressure information and preset working conditions.
Optionally, for a fuel cell engine controller, a threshold of the vacuum degree of the hollow cavity 101 of the package housing is preset, and when the vacuum degree inside the hollow cavity 101 reaches the vacuum degree threshold, the control valve 300 and the vacuum pump 400 are closed to ensure the vacuum degree inside the hollow cavity 101; when the air pressure needs to be released, the vacuum pump 400 is closed and the control valve 300 is opened only according to a preset program; alternatively, the control valve 300 may employ a solenoid valve.
The control method based on the fuel cell packaging shell provided by the embodiment comprises the following steps: the hollow cavity 101 has a vacuum state and a normal pressure state; the step of vacuum state of the hollow cavity 101 includes: presetting a vacuum degree pressure value in the hollow cavity 101; starting the control valve 300 and the vacuum pump 400 to perform vacuum pumping operation on the hollow cavity 101 of the housing main body 100; when the pressure value in the hollow cavity 101 reaches a preset pressure value, closing the control valve 300 to be in a normally closed state, and stopping the vacuum pump 400; the step of the normal pressure state of the hollow cavity 101 includes: when the vacuum pump 400 does not work, the control valve 300 is opened to release the pressure in the hollow cavity body 101; when the pressure value in the hollow cavity 101 reaches the normal pressure value, the closing control valve 300 is in a normally closed state.
In the preferred embodiment of the present invention, the hollow cavity 101 comprises the following working states: working condition 1: in the running process of a fuel cell engine, when the temperature of a water outlet of a fuel cell stack is a conventional steady-state value, controlling the hollow cavity 101 to be in a normal pressure state; working condition 2: in the operation process of the fuel cell engine, when the temperature of the water outlet of the fuel cell stack is smaller than a normal steady-state value, the hollow cavity 101 is controlled to be in a vacuum state.
In the preferred embodiment of the present invention, the hollow cavity 101 further comprises the following operating states: working condition 3: when the fuel cell is to be shut down, when the temperature of the water outlet of the fuel cell stack is a conventional steady-state value, and after the fuel cell is shut down, the hollow cavity 101 is controlled to be in a vacuum state; working condition 4: when the fuel cell is to be shut down, when the temperature of the water outlet of the fuel cell stack is smaller than a conventional steady-state value, the working condition 2 is met, and the hollow cavity 101 is controlled to be kept in a vacuum state all the time.
In this embodiment, the vacuum state and the normal state of the enclosure can be adjusted for different use environments of the fuel cell engine, wherein in a low-temperature environment, when the controller 600 in the combustion control battery receives that the temperature of the water outlet of the fuel cell stack is lower than a conventional steady-state value, the hollow cavity 101 of the enclosure main body 100 is filled with vacuum by adjusting the control valve 300 and the vacuum pump 400, so that the heat in the enclosure main body of the fuel cell stack is slowed or blocked from being conducted to the external environment, and when the engine is started at a low temperature, the heat in the enclosure main body 100 is not or slowly dissipated, so that the temperature of the internal stack is rapidly increased, the success of the low-temperature cold start of the engine is ensured, and the low-temperature cold start rate of the engine is increased; meanwhile, after the vehicle is stopped, no matter in the working state of working condition 3 or working condition 4, in order to ensure that the temperature of the galvanic pile in the shell body 100 is slowly reduced, when a driver starts the engine again after a short time, the heat of the packaging shell is ensured not to be dissipated by utilizing the vacuum state, so that the temperature of the galvanic pile can still be in a higher temperature, the starting speed of the engine is very quick, the frequent occurrence of the freeze cycle of the proton exchange membrane can be prevented, and the service life is prolonged; the temperature of the electric pile can be kept at any ambient temperature, so that the temperature of the electric pile can quickly reach the steady normal working temperature in the process of load increase, and the load increase capacity of the engine can be improved; finally, when the stack reaches the normal working temperature, the fuel cell is in the working state of the working condition 1, the hollow cavity 101 of the shell main body 100 is partially filled with air, the normal heat conduction capability of the shell main body 100 is recovered, and the normal heat emission of the engine is not influenced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A fuel cell package housing, comprising: the device comprises a shell body, an air interface, a control valve and a vacuum pump;
the air inlet is connected with the shell body, and the air inlet is communicated with the hollow cavity;
the control valve is located on the air interface, the vacuum pump is communicated with the hollow cavity through the control valve, the vacuum pump is used for forming a vacuum state in the hollow cavity, and the control valve is used for adjusting the vacuum state and the normal pressure state of the hollow cavity to be switched.
2. The fuel cell package housing of claim 1, wherein the housing body comprises a communication conduit and a first shell plate;
the first shell plates are sequentially connected end to end, any two adjacent first shell plates are in sealed connection, and a sealed space for accommodating a fuel cell stack is formed by the first shell plates;
a hollow cavity is formed in each first shell plate, any two adjacent first shell plates are connected through the communication pipeline, and the communication pipeline is respectively communicated with the hollow cavities in the two first shell plates;
the air interface is communicated with the hollow cavity of any one of the first shell plates.
3. The fuel cell package housing according to claim 2, wherein a plurality of the communication conduits are arranged between any adjacent two of the first shell plates, and each of the communication conduits is respectively communicated with the hollow cavities in the corresponding two of the first shell plates.
4. The fuel cell package housing of claim 1, wherein the housing body comprises a communication duct, a housing, and a second shell plate;
the shell is provided with an open end, the second shell plate is positioned at the open end of the shell and is in sealed connection with the shell, so that a sealed space for accommodating the galvanic pile is formed inside the shell;
a hollow cavity is arranged in the shell in an extending mode, the second shell plate is internally provided with the hollow cavity, the communicating pipeline is respectively connected with the shell and the second shell plate, and the communicating pipeline is respectively communicated with the hollow cavities of the shell and the second shell plate;
the air interface is communicated with the hollow cavity of the shell.
5. The fuel cell package housing of any one of claims 1-4, wherein the control valve comprises a control valve body, a first port, and a second port; the vacuum pump comprises a vacuum pump body, an air inlet and an air outlet;
the vacuum pump comprises a control valve body, an air inlet, an air outlet, a vacuum pump body and a vacuum pump, wherein the control valve body is respectively connected with a first interface and a second interface, the first interface is hermetically connected with the air interface, the second interface is hermetically connected with the air inlet, the vacuum pump body is respectively connected with the air inlet and the air outlet, and the vacuum pump is communicated with the external environment through the air outlet.
6. The fuel cell package housing of claim 5, further comprising a flexible tubing;
the first interface is hermetically connected with the air interface through the flexible pipeline.
7. The fuel cell package housing of claim 5, further comprising a pressure sensor and a controller;
the controller is respectively in electrical signal connection with the vacuum pump, the control valve and the pressure sensor, the pressure sensor is communicated with the hollow cavity, the pressure sensor is used for detecting pressure information in the hollow cavity and transmitting the pressure information to the controller, and the controller correspondingly controls the opening and closing of the control valve and the vacuum pump.
8. A control method based on the fuel cell package case according to any one of claims 1 to 7, characterized by comprising the steps of:
the hollow cavity has a vacuum state and a normal pressure state;
the step of the vacuum state of the hollow cavity comprises: presetting a vacuum degree pressure numerical value in the hollow cavity;
starting a control valve and a vacuum pump, and carrying out vacuum pumping operation on the hollow cavity of the shell main body;
when the pressure value in the hollow cavity is detected to reach a preset pressure value, the control valve is closed to be in a normally closed state, and the vacuum pump stops working;
the step of the normal pressure state of the hollow cavity comprises the following steps: when the vacuum pump does not work, the control valve is opened to release the pressure in the hollow cavity;
and when the pressure value in the hollow cavity is detected to reach the normal pressure value, the control valve is closed to be in a normally closed state.
9. The method of controlling a fuel cell package housing of claim 8, wherein the hollow cavity comprises the following operating conditions:
working condition 1: in the running process of a fuel cell engine, when the temperature of a water outlet of a fuel cell stack is a conventional steady-state value, controlling the hollow cavity to be in a normal-pressure state;
working condition 2: and in the running process of the fuel cell engine, when the temperature of the water outlet of the fuel cell stack is smaller than a conventional steady-state value, controlling the hollow cavity to be in a vacuum state.
10. The method of controlling a fuel cell package housing of claim 8, wherein the hollow cavity further comprises the following operating conditions:
working condition 3: when the fuel cell is to be shut down, when the temperature of the water outlet of the fuel cell stack is a conventional steady-state value, and after the fuel cell is shut down, controlling the hollow cavity to be in a vacuum state;
working condition 4: when the fuel cell is to be shut down, when the temperature of the water outlet of the fuel cell stack is smaller than a conventional steady-state value, the working condition 2 is met, and the hollow cavity is controlled to be kept in a vacuum state all the time.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116799252A (en) * | 2023-08-25 | 2023-09-22 | 深圳市氢蓝时代动力科技有限公司 | Fuel cell control method and system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05121092A (en) * | 1991-10-24 | 1993-05-18 | Ngk Insulators Ltd | Temperature control system of nas battery |
| JP2012084366A (en) * | 2010-10-08 | 2012-04-26 | Konica Minolta Holdings Inc | Fuel cell device and secondary fuel cell system |
| CN103943873A (en) * | 2014-05-19 | 2014-07-23 | 哈尔滨工业大学 | MEMS (Micro-Electromechanical Systems) methanol reforming fuel cell system |
| CN104037437A (en) * | 2014-06-13 | 2014-09-10 | 新源动力股份有限公司 | Vacuum-insulated fuel cell system |
| JP2015138578A (en) * | 2014-01-20 | 2015-07-30 | 三菱日立パワーシステムズ株式会社 | Fuel battery and method for cooling the same |
| CN106953040A (en) * | 2015-10-20 | 2017-07-14 | 罗伯特·博世有限公司 | Enclosure system, battery module, method for regulating temperature and the battery pack of battery module |
| CN210092225U (en) * | 2019-08-28 | 2020-02-18 | 四川荣创新能动力系统有限公司 | Fuel cell waste heat recovery system and fuel cell automobile |
| US20200099085A1 (en) * | 2018-09-26 | 2020-03-26 | Honeywell International Inc. | Chemical hydride ambulatory micro power source |
| CN113117584A (en) * | 2021-04-06 | 2021-07-16 | 湖南先森智能科技有限公司 | Automatic auxiliary agent distribution device and distribution method thereof |
| CN114208642A (en) * | 2021-07-23 | 2022-03-22 | 南开大学 | Device and method for monitoring crop growth parameters after irrigation |
-
2022
- 2022-05-18 CN CN202210536116.1A patent/CN114725470A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05121092A (en) * | 1991-10-24 | 1993-05-18 | Ngk Insulators Ltd | Temperature control system of nas battery |
| JP2012084366A (en) * | 2010-10-08 | 2012-04-26 | Konica Minolta Holdings Inc | Fuel cell device and secondary fuel cell system |
| JP2015138578A (en) * | 2014-01-20 | 2015-07-30 | 三菱日立パワーシステムズ株式会社 | Fuel battery and method for cooling the same |
| CN103943873A (en) * | 2014-05-19 | 2014-07-23 | 哈尔滨工业大学 | MEMS (Micro-Electromechanical Systems) methanol reforming fuel cell system |
| CN104037437A (en) * | 2014-06-13 | 2014-09-10 | 新源动力股份有限公司 | Vacuum-insulated fuel cell system |
| CN106953040A (en) * | 2015-10-20 | 2017-07-14 | 罗伯特·博世有限公司 | Enclosure system, battery module, method for regulating temperature and the battery pack of battery module |
| US20200099085A1 (en) * | 2018-09-26 | 2020-03-26 | Honeywell International Inc. | Chemical hydride ambulatory micro power source |
| CN210092225U (en) * | 2019-08-28 | 2020-02-18 | 四川荣创新能动力系统有限公司 | Fuel cell waste heat recovery system and fuel cell automobile |
| CN113117584A (en) * | 2021-04-06 | 2021-07-16 | 湖南先森智能科技有限公司 | Automatic auxiliary agent distribution device and distribution method thereof |
| CN114208642A (en) * | 2021-07-23 | 2022-03-22 | 南开大学 | Device and method for monitoring crop growth parameters after irrigation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116799252A (en) * | 2023-08-25 | 2023-09-22 | 深圳市氢蓝时代动力科技有限公司 | Fuel cell control method and system |
| CN116799252B (en) * | 2023-08-25 | 2023-11-24 | 深圳市氢蓝时代动力科技有限公司 | Fuel cell control method and system |
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