CN114792822A - Heat exchange device, fuel cell and heat exchange method - Google Patents

Heat exchange device, fuel cell and heat exchange method Download PDF

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Publication number
CN114792822A
CN114792822A CN202110627087.5A CN202110627087A CN114792822A CN 114792822 A CN114792822 A CN 114792822A CN 202110627087 A CN202110627087 A CN 202110627087A CN 114792822 A CN114792822 A CN 114792822A
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China
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water
fuel cell
water storage
unit
heat
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Chinese (zh)
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康慧芳
黄奕成
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Beijing Institute of Technology BIT
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Beijing Institute of Technology BIT
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04059Evaporative processes for the cooling of a fuel cell
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04014Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04067Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
    • H01M8/04074Heat exchange unit structures specially adapted for fuel cell
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432Temperature; Ambient temperature
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel Cell (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The utility model aims at providing a heat transfer device, fuel cell and heat transfer method, heat transfer device includes storage water tank, radiating unit, cooling unit, and storage water tank connection fuel cell's drainage unit, storage water tank are used for receiving and store produced water in the fuel cell working process, and radiating unit and cooling unit are used for cooperating the realization to carry out the heat transfer to fuel cell and handle, still include: the water distribution cooling unit is arranged at an air inlet of the heat dissipation unit, is connected with a water outlet of the water storage tank and is used for receiving and releasing stored water in the water storage tank during working so as to reduce the air temperature at the air inlet side of the heat dissipation unit by utilizing the vaporization latent heat of the released water through vaporization of the released water. The heat exchange device releases water generated by the fuel cell to the air inlet of the heat dissipation unit through the water distribution cooling unit, and reduces the air temperature of the heat dissipation unit at the air inlet side through the latent heat of vaporization effect of the released water, so that the heat dissipation efficiency of the heat dissipation unit is greatly improved.

Description

Heat exchange device, fuel cell and heat exchange method
This application claims priority to CN202110109669.4 (a fuel cell stack cooling system using evaporative cooling)
Technical Field
The application relates to the field of fuel cells, in particular to a heat exchange device, a fuel cell and a heat exchange method.
Background
A fuel cell is an energy conversion device that directly converts chemical energy into electrical energy, and is also called an electrochemical generator. The fuel cell generally uses hydrogen, methanol or natural gas as fuel, and has the advantages of high efficiency, low noise, environmental friendliness and the like.
The power generation efficiency of the fuel cell is about 50%, a large amount of heat is generated during power supply, and if the heat is not dispersed in time, the operation of a fuel cell power system is influenced. Compared with a traditional internal combustion engine, the heat load of the fuel cell power system is larger, only about 50% of heat of the traditional internal combustion engine needs to be taken away by the cooling system, and about 95% of heat of the fuel cell power system needs to be taken away by the cooling system when the fuel cell power system operates, so that the heat dissipation requirement of the fuel cell power system is far greater than that of the traditional internal combustion engine. In addition, the operating temperature range of the fuel cell stack is narrow, and the requirement on a cooling system is relatively higher.
Disclosure of Invention
An object of the present application is to provide a heat exchanging device, a fuel cell, and a heat exchanging method.
According to an aspect of this application, this application provides a be applied to fuel cell's heat transfer device, including storage water tank, radiating unit, cooling unit, storage water tank connection fuel cell's drainage unit, the storage water tank is used for receiving and storing produced water in the fuel cell working process, radiating unit with cooling unit is used for the cooperation to realize right fuel cell carries out the heat transfer cooling and handles, heat transfer device still includes: the latent heat of vaporization device is connected with a water outlet of the water storage tank and is used for vaporizing the stored water in the water storage tank during work and cooling by utilizing the latent heat of vaporization of the stored water.
In some embodiments, at least one outlet check valve is arranged between the water storage tank and the latent heat of vaporization device, the heat exchange device further comprises a control unit, the control unit is electrically connected with the outlet check valve, and the control unit is used for controlling the opening of the outlet check valve when a latent heat of vaporization condition is met, so that the latent heat of vaporization device vaporizes the stored water in the water storage tank when in work, and the latent heat of vaporization of the stored water is utilized for cooling.
In some embodiments, the heat exchange device further comprises a collecting unit for collecting information about operating parameters of the fuel cell; the control unit is further electrically connected with the acquisition unit and used for controlling the opening of the outlet one-way valve when the working parameter information acquired by the acquisition unit meets the latent heat of vaporization condition, so that the latent heat of vaporization device enables the water storage in the water storage tank to vaporize when in work and the latent heat of vaporization of the water storage is utilized for cooling.
In some embodiments, the water storage tank includes a plurality of water storage compartments, and the outlet check valve is disposed between each of the plurality of water storage compartments and the water distribution cooling unit.
In some embodiments, a water level sensing unit is installed in at least one of the water storage compartments, the water level sensing unit is electrically connected with the control unit, and the control unit is further configured to control the opening and closing state of an outlet check valve of the corresponding water storage compartment according to water level information detected by the water level sensing unit.
In some embodiments, at least one inlet check valve is disposed between the water storage compartments and the water discharge unit of the fuel cell, and when the inlet check valve is opened, water generated during operation of the fuel cell flows into corresponding ones of the water storage compartments through the inlet check valve.
In some embodiments, the control unit is electrically connected to each inlet check valve, and the control unit is further configured to control an opening and closing state of the inlet check valve corresponding to the water storage compartment according to the water level information of the water storage compartment.
In some embodiments, the acquisition unit comprises a temperature sensor for acquiring an operating temperature of the fuel cell, the latent heat of vaporization condition comprising the operating temperature of the fuel cell reaching a temperature threshold; the control unit is electrically connected with the temperature sensor and used for controlling the opening of the outlet one-way valve when the working temperature of the fuel cell acquired by the temperature sensor reaches a temperature threshold value, so that the latent heat of vaporization device enables the stored water in the water storage tank to vaporize when in work and the latent heat of vaporization of the stored water is utilized for cooling.
In some embodiments, the latent heat of vaporization device includes a water distribution cooling unit disposed at an air inlet of the heat dissipation unit, wherein the water distribution cooling unit is connected to an water outlet of the water storage tank and is configured to receive and release the stored water in the water storage tank during operation, so as to utilize latent heat of vaporization of the released water for cooling by vaporization of the released water.
In some embodiments, the heat exchange device further includes a pre-cooling device disposed at the air inlet of the heat dissipation unit.
In some embodiments, the heat exchange device further includes a driving unit, the driving unit is respectively connected to the control unit and the pre-cooling device, the control unit is further configured to control the driving unit to drive the pre-cooling device to expand when the latent heat of vaporization device works, and control the driving unit to drive the pre-cooling device to retract when the latent heat of vaporization device does not work.
In some embodiments, the water distribution cooling unit includes a water distributor disposed at the air inlet of the heat dissipation unit, wherein the water distributor is connected to the water outlet of the water storage tank through a pipeline, and a water pump is disposed on the pipeline and is configured to receive and release the stored water in the water storage tank during operation, so as to utilize latent heat of vaporization of the released water for cooling by vaporization of the released water.
In some embodiments, the heat exchange device further comprises a condensation water collection unit, the water drainage unit of the fuel cell is connected with the inlet of the condensation water collection unit, and the outlet of the condensation water collection unit is connected with the water inlet of the water storage tank.
In some embodiments, the condensate collection unit comprises a vapor-liquid separator or a condenser.
In some embodiments, the heat dissipation unit includes a heat sink, a heat dissipation fan disposed at one side of the latent heat vaporization device, or the heat dissipation fan is disposed at one side of the heat sink.
In some embodiments, the heat sink comprises a blow type heat sink or a suction type heat sink, and when the heat sink comprises the blow type heat sink, the heat dissipation fan is disposed at one side of the latent heat of vaporization device; when the heat dissipation unit comprises the air suction type heat radiator, the heat dissipation fan is arranged on one side of the heat radiator.
According to another aspect of this application, a fuel cell is provided, including fuel cell stack, heat transfer device includes storage water tank, radiating element, cooling unit, storage water tank connection fuel cell's drainage unit, the storage water tank is used for receiving and storing produced water in the fuel cell stack course of operation, radiating element with cooling unit is used for the cooperation to realize right fuel cell stack or air conditioning system carry out the heat transfer cooling and handle, its characterized in that, heat transfer device still includes: the latent heat of vaporization device is connected with a water outlet of the water storage tank and is used for vaporizing the stored water in the water storage tank during work and cooling by utilizing the latent heat of vaporization of the stored water.
In some embodiments, the heat exchange device comprises a heat exchange device as described in any of the above embodiments.
According to another aspect of the present application, a method for exchanging heat of a fuel cell by a heat exchange device is provided, where the heat exchange device includes a water storage tank, a heat dissipation unit, and a cooling unit, the water storage tank is connected to a water drainage unit of the fuel cell, the water storage tank is used for receiving and storing water generated during the operation of the fuel cell, and the heat dissipation unit and the cooling unit are used in cooperation to implement heat exchange and temperature reduction processing on the fuel cell, and the heat exchange device further includes: the latent heat of vaporization device, be provided with at least one export check valve between said storage water tank and the latent heat of vaporization device, this method includes:
monitoring whether the fuel cell meets a latent heat of vaporization condition in real time during the working process of the fuel cell;
if the conditions are met, controlling to open at least one outlet one-way valve so that the latent heat of vaporization device can vaporize the stored water in the water storage tank, and cooling by utilizing the latent heat of vaporization of the stored water.
According to another aspect of the application, a heat transfer device is provided, heat transfer device includes storage water tank, radiating element, cooling unit, storage water tank connection fuel cell's drainage unit, the storage water tank is used for receiving and storing produced water in the fuel cell working process, radiating element with cooling unit is used for the cooperation to realize right fuel cell carries out heat transfer cooling and handles, its characterized in that, heat transfer device still includes: latent heat of vaporization device, the storage water tank with be provided with at least one export check valve between the latent heat of vaporization device, this equipment still includes:
the module is used for monitoring whether the fuel cell meets the latent heat of vaporization condition in real time in the working process of the fuel cell;
and the second module is used for controlling to open at least one outlet one-way valve if the conditions are met so as to enable the latent heat of vaporization device to vaporize the water in the water storage tank and utilize the latent heat of vaporization of the stored water for cooling.
According to another aspect of the application, a heat transfer device is provided, heat transfer device includes storage water tank, radiating element, cooling unit, storage water tank connection fuel cell's drainage unit, the storage water tank is used for receiving and storing produced water in the fuel cell working process, radiating element with cooling unit is used for the cooperation to realize right fuel cell carries out heat transfer cooling and handles, its characterized in that, heat transfer device still includes: the latent heat of vaporization device, there is at least one outlet check valve between said water storage tank and said latent heat of vaporization device; the apparatus further comprises:
a processor; and
a memory arranged to store computer executable instructions that, when executed, cause the processor to perform the operations of the method of:
monitoring whether the fuel cell meets a latent heat of vaporization condition in real time in the working process of the fuel cell;
if the requirement is met, controlling to open at least one outlet one-way valve so that the latent heat of vaporization device can vaporize the water in the water storage tank, and cooling by utilizing the latent heat of vaporization of the water.
According to one aspect of the application, there is provided a computer-readable medium storing instructions that, when executed, cause a system to perform the operations of the method of:
monitoring whether the fuel cell meets a latent heat of vaporization condition in real time in the working process of the fuel cell;
if the requirement is met, controlling to open at least one outlet one-way valve so that the latent heat of vaporization device can vaporize the water in the water storage tank, and cooling by using the latent heat of vaporization of the water.
According to an aspect of the application, there is provided a computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, performs the steps of the method as follows:
monitoring whether the fuel cell meets a latent heat of vaporization condition in real time in the working process of the fuel cell;
if the water storage tank meets the requirement, at least one outlet one-way valve is controlled to be opened so that the latent heat of vaporization device can vaporize the water in the water storage tank, and the latent heat of vaporization of the water is utilized to cool.
Compared with the prior art, the heat transfer device of this application includes storage water tank, radiating unit, cooling unit, and fuel cell's drainage unit is connected to the storage water tank, and the storage water tank is arranged in receiving and stores produced water in the fuel cell working process, and radiating unit and cooling unit are used for cooperating the realization to carry out the heat transfer cooling to fuel cell or air conditioning system and handle, and heat transfer device still includes: the latent heat of vaporization device is connected with the water outlet of the water storage tank and is used for vaporizing the stored water in the water storage tank during working and cooling by utilizing the latent heat of vaporization of water. This application heat transfer device be provided with storage water tank, latent heat of vaporization device, receive and store produced water in the fuel cell working process through the storage water tank, make the water storage vaporization in the storage water tank through the latent heat of vaporization device, utilize the latent heat of vaporization of water storage cools down to improve radiating element's radiating efficiency.
Meanwhile, the method monitors whether the fuel cell meets a latent heat of vaporization condition in real time in the working process of the fuel cell, and controls to open at least one outlet one-way valve when the latent heat of vaporization condition is met, so that the latent heat of vaporization device vaporizes water in the water storage tank, and the latent heat of vaporization of the stored water is utilized for cooling. By the heat exchange method, the state of the fuel cell can be monitored in real time so as to automatically switch to different working states, when the latent heat of vaporization condition (the heat dissipation efficiency of the heat dissipation unit needs to be improved currently or can be improved currently) is met, the latent heat of vaporization device starts to work by controlling to open at least one outlet one-way valve, the stored water in the water storage tank is vaporized by the latent heat of vaporization device, and the latent heat of vaporization of the stored water is utilized for cooling, so that the heat dissipation efficiency of the heat dissipation unit is greatly improved. When the latent heat of vaporization condition is not met, the latent heat of vaporization device does not need to work, on one hand, the stored water in the water storage tank can be saved; on the other hand, the water generated by the fuel cell received by the water storage tank may be given sufficient time so that the water received by the water storage tank may sufficiently cool the generated water. Finally, the whole heat exchange device can be automatically switched to different working states.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic view showing a structure of a heat exchanging apparatus applied to a fuel cell according to an embodiment of the present application;
fig. 2 is a schematic structural view illustrating a heat exchange device applied to a fuel cell according to another embodiment of the present application;
FIG. 3 illustrates a schematic structural diagram of a water storage tank according to an embodiment of the present application;
FIG. 4 shows a schematic structural diagram of a water storage tank according to another embodiment of the present application;
FIG. 5 shows a schematic structural diagram of a water storage tank according to another embodiment of the present application;
FIG. 6 shows a schematic structural diagram of a water storage tank according to yet another embodiment of the present application;
FIG. 7 shows a schematic structural diagram of a water distribution cooling unit according to an embodiment of the present application;
fig. 8 shows a schematic structural diagram of a water distribution cooling unit and a heat dissipation unit according to an embodiment of the present application;
fig. 9 shows a schematic structural diagram of a water distribution cooling unit and a heat dissipation unit according to another embodiment of the present application;
FIG. 10 is a schematic structural diagram of a water distribution cooling unit according to an embodiment of the present application;
fig. 11 is a schematic structural view showing a heat exchange device applied to a fuel cell according to still another embodiment of the present application;
fig. 12 is a schematic structural view showing a heat exchange device applied to a fuel cell according to still another embodiment of the present application;
FIG. 13 illustrates a flow diagram of a method for exchanging heat to a fuel cell via a heat exchanging device according to an embodiment of the present application;
FIG. 14 shows a schematic structural diagram of a heat exchange device according to an embodiment of the present application;
FIG. 15 illustrates an exemplary system that can be used to implement the various embodiments described in this application.
The same or similar reference numbers in the drawings identify the same or similar elements.
Reference numerals
1 Water storage tank
11 Water storage room
2 Heat dissipation Unit
21 radiator
22 Heat radiation fan
3 Cooling Unit
31 cooling flow passage
32 circulating water pump
4 fuel cell
5 water distribution cooling unit
51 water distributor
52 precooling apparatus
53 base
54 water pump
6 temperature sensor
7 outlet one-way valve
8 inlet check valve
9 condensation water collection unit
Detailed Description
The present application is described in further detail below with reference to the attached drawing figures.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first," "second," etc. may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, a first feature "on," "above," and "over" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means 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 above and diagonally above 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 application, "a plurality" means two or more unless specifically limited otherwise.
In a typical configuration of the present application, the terminal, the device serving the network, and the trusted party each include one or more processors (e.g., Central Processing Units (CPUs)), input/output interfaces, network interfaces, and memory.
The Memory may include forms of volatile Memory, Random Access Memory (RAM), and/or non-volatile Memory in a computer-readable medium, such as Read Only Memory (ROM) or Flash Memory. Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, Phase-Change Memory (PCM), Programmable Random Access Memory (PRAM), Static Random-Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), electrically Erasable Programmable Read-Only Memory (EEPROM), flash Memory or other Memory technology, Compact Disc Read-Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, magnetic cassette tape, magnetic tape disk storage or other magnetic storage devices, or any other non-transmission medium may be used to store information that may be accessed by a computing device.
The device referred to in the present application includes, but is not limited to, a terminal, a network device, or a device formed by integrating a terminal and a network device through a network. The terminal includes, but is not limited to, any mobile electronic product capable of performing human-computer interaction with a user, such as a smart phone, a tablet computer, a head-mounted device, and the like, and the mobile electronic product may employ any operating system, such as an Android operating system, an iOS operating system, and the like. The network Device includes an electronic Device capable of automatically performing numerical calculation and information processing according to a preset or stored instruction, and the hardware includes, but is not limited to, a microprocessor, an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a Digital Signal Processor (DSP), an embedded Device, and the like. The network device includes but is not limited to a computer, a network host, a single network server, a plurality of network server sets or a cloud of a plurality of servers; here, the Cloud is composed of a large number of computers or network servers based on Cloud Computing (Cloud Computing), which is a kind of distributed Computing, one virtual supercomputer consisting of a collection of loosely coupled computers. Including, but not limited to, the internet, a wide area network, a metropolitan area network, a local area network, a VPN network, a wireless Ad Hoc network (Ad Hoc network), etc. Preferably, the device may also be a program running on the terminal, the network device, or a device formed by integrating the terminal and the network device, the touch terminal, or the network device and the touch terminal through a network.
Of course, those skilled in the art will appreciate that the foregoing is by way of example only, and that other existing or future devices, which may be suitable for use in the present application, are also encompassed within the scope of the present application and are hereby incorporated by reference.
Referring to fig. 1, according to an aspect of the present application, a heat exchange device applied to a fuel cell is provided, the heat exchange device includes a water storage tank 1, a heat dissipation unit 2, and a cooling unit 3, the water storage tank 1 is connected to a drainage unit of the fuel cell 4, the water storage tank 1 is used for receiving and storing water generated in a working process of the fuel cell 4, the heat dissipation unit 2 and the cooling unit 3 are used for cooperating to realize heat exchange and temperature reduction processing of the fuel cell 4, and the heat exchange device further includes: the latent heat of vaporization device is connected with a water outlet of the water storage tank 1 and is used for vaporizing the stored water in the water storage tank 1 during work and cooling by utilizing the latent heat of vaporization of the stored water. In some embodiments, the latent heat of vaporization device includes, but is not limited to, a water distribution cooling unit, the water distribution cooling unit releases the stored water in the water storage tank 1, and the released water is vaporized to cool by using the latent heat of vaporization of the released water. In some embodiments, the latent heat of vaporization device includes, but is not limited to, a spraying system, the water stored in the water storage tank is directly sprayed on the heat dissipation unit through the spraying system, and the air flows through the heat dissipation unit (e.g., a radiator) to accelerate the evaporation of the moisture, thereby increasing the heat dissipation capacity of the heat dissipation unit. In some embodiments, the spraying system includes, but is not limited to, a water pump and a nozzle, for example, the water pump 4 delivers the stored water to the nozzle 7 and atomizes the liquid droplets, and then sprays the mist on the radiator, and the heat radiation fan forces the air to flow through the radiator to accelerate the evaporation of the moisture, and the evaporation of the moisture takes away a large amount of heat due to the latent heat of vaporization, thereby increasing the heat radiation amount. In some embodiments, the latent heat of vaporization device includes, but is not limited to, a vacuum pump, a latent heat radiator, for example, a latent heat radiator is disposed in the water storage tank, the latent heat radiator is connected to the heat dissipation unit, the vacuum pump is used to reduce the boiling point of water in the water storage tank (including the latent heat radiator), the latent heat radiator is in sufficient heat exchange with the water in the water storage tank, and as the boiling point is reduced, the water is largely evaporated, thereby increasing the heat dissipation capacity. For example, a water storage tank is used for collecting water generated by electrochemical reaction of a fuel cell, a vacuum pump is used for pumping the water storage tank to be in a state close to vacuum, and due to different boiling points of water under different atmospheric pressures, the boiling point of the water in the state close to vacuum is reduced to be lower than the working temperature of a latent heat radiator; the heat radiator and water are fully boiled for heat exchange, a large amount of water is evaporated, and a large amount of heat is taken away by latent heat of vaporization in the water evaporation process, so that the heat dissipation capacity of the latent heat radiator is improved. In some embodiments, the cooling unit 3 includes, but is not limited to, a cooling flow channel 31 and a circulating water pump 32, for example, the cooling flow channel 31 is disposed on a fuel cell stack of a fuel cell, cooling water flows through the cooling flow channel 31, the circulating water pump 32 is disposed on the cooling flow channel 31, the cooling water in the cooling flow channel 31 is driven by the circulating water pump 32 to carry heat to the heat dissipation unit 2 along the illustrated cooling water flow direction, and wind force is applied through the heat dissipation unit 2 to carry heat carried by the cooling water from the fuel cell 4, so that the cooling of the fuel cell 4 is achieved through cooperation of the heat dissipation unit 2 and the cooling unit 3. In some embodiments, the heat dissipation unit 2 includes, but is not limited to, a heat sink 21. In other embodiments, the heat dissipation unit 2 includes a heat sink 21 and a heat dissipation fan. In some embodiments, the heat exchange device further includes a water storage tank 1, the water storage tank 1 is connected to the drainage unit of the fuel cell 4, the water storage tank 1 is configured to receive and store water generated during the operation of the fuel cell 4, and the latent heat of vaporization device is connected to the water outlet of the water storage tank 1 and is configured to vaporize the stored water in the water storage tank 1 during the operation, so as to cool the water by using the latent heat of vaporization of the stored water, thereby greatly improving the heat dissipation efficiency of the heat dissipation unit 2. In some embodiments, the water drainage unit of the fuel cell 4 includes, but is not limited to, a drain port through which moisture generated by the fuel cell 4 during operation is drained. For example, the water storage tank 1 is connected to a water discharge unit of the fuel cell 4 through a pipe so that the water storage tank 1 receives and stores moisture generated during the operation of the fuel cell 4. In this embodiment, heat transfer device passes through radiating unit 2 with the cooperation realization of cooling unit 3 is right fuel cell 4 carries out the heat transfer cooling, simultaneously through the cooperation work between storage water tank 1, latent heat of vaporization device and the radiating unit 2, reaches the technological effect that improves radiating unit 2 radiating efficiency greatly to used moisture derives from fuel cell 4 at the moisture that the during operation produced, avoided directly discharging the water that fuel cell 4 produced to the environment and produce the influence to the environment, and make it participate in radiating unit 2 to fuel cell 4's radiating process, thereby make full use of the produced moisture of fuel cell 4.
Of course, those skilled in the art should understand that the latent heat of vaporization devices, the cooling units 3 and the heat dissipating units 2 described above are only examples, and other existing or future latent heat of vaporization devices, cooling units and heat dissipating units, such as those that can be applied to the present embodiment, are also within the scope of the present application and are included herein by reference.
In some embodiments, at least one outlet check valve 7 is disposed between the water storage tank 1 and the latent heat of vaporization device, the heat exchange device further includes a control unit, the control unit is electrically connected to the outlet check valve 7, and the control unit is configured to control the opening of the outlet check valve 7 when a latent heat of vaporization condition is met, so that the latent heat of vaporization device vaporizes the stored water in the water storage tank 1 when in operation, and the latent heat of vaporization of the stored water is utilized to cool the water. In some embodiments, the control unit includes, but is not limited to, a single chip microcomputer. In some embodiments, the latent heat of vaporization conditions include, but are not limited to, the water production of the fuel cell reaching a preset water production threshold, the operating temperature of the fuel cell reaching a preset temperature threshold. In other embodiments, it may also be determined whether the latent heat of vaporization condition is satisfied based on the operating state of the usage carrier of the fuel cell, for example, when the driver operates the fuel cell power system, the magnitude of the output power of the fuel cell is changed at any time through a throttle (i.e., an accelerator) or the like. Therefore, the working state of the heat exchange device can be determined according to the operation mode of a driver, for example, when the fuel cell is required to output high power, the driver increases the opening of a throttle valve, if the opening is larger than a threshold value, a signal is sent to a control system at the moment to control the heat exchange device to work, and the heat dissipation requirement of the fuel cell on high power output is met; when the opening of the throttle valve is reduced by a driver, the fuel cell correspondingly outputs low power, a general heat dissipation system meets the heat dissipation capacity, and at the moment, a signal is sent to the control system, and the heat exchange device stops working. Of course, it will be understood by those skilled in the art that the latent heat of vaporization conditions described above are merely exemplary, and that other conditions of latent heat of vaporization, whether now known or later developed, such as would be suitable for use in the present application, are within the scope of the present application and are incorporated herein by reference. In some embodiments, at least one outlet check valve 7 is provided between the storage tank 1 and the latent heat of vaporization device: for example, referring to fig. 2, an outlet check valve 7 is disposed between the water storage tank 1 and the latent heat of vaporization device, and the control unit controls to open the outlet check valve 7 when the operating parameter information of the fuel cell 4 satisfies the latent heat of vaporization condition. For another example, referring to fig. 3, the storage tank 1 includes a plurality of storage compartments 11, and the plurality of storage compartments 11 share one outlet check valve 7 (for example, the outlet pipes of the plurality of storage compartments 11 are collected into one pipe, and the outlet check valve 7 is disposed on the one pipe); for another example, as shown in fig. 4, the water storage tank 1 includes a plurality of water storage compartments 11, and each water storage compartment 11 corresponds to one outlet check valve 7. In this embodiment, the control unit controls the fuel cell to open the outlet check valve when the latent heat of vaporization condition is satisfied, so that the latent heat of vaporization device can vaporize the stored water in the water storage tank, and the latent heat of vaporization of the stored water is utilized to cool the stored water.
In some embodiments, the heat exchange device further comprises a collecting unit for collecting information about operating parameters of the fuel cell; the control unit is further electrically connected with the acquisition unit and used for controlling the opening of the outlet one-way valve 7 when the working parameter information acquired by the acquisition unit meets the latent heat of vaporization condition, so that the latent heat of vaporization device can vaporize the water stored in the water storage tank 1 when in work and the latent heat of vaporization of the water stored is utilized for cooling. In some embodiments, the collecting unit includes, but is not limited to, a temperature sensor 6 for collecting an operating temperature of the fuel cell 4, where the operating parameter information includes the operating temperature of the fuel cell and the latent heat of vaporization condition includes the operating temperature of the fuel cell reaching a temperature threshold. For example, when the operating temperature of the fuel cell reaches a temperature threshold, the heat exchange device controls to open an outlet one-way valve between the latent heat of vaporization device and the water storage tank 1 through a control unit, so that the latent heat of vaporization device can vaporize the stored water in the water storage tank 1, and the latent heat of vaporization of the stored water is used for cooling; when the operating temperature of the fuel cell 4 does not reach the temperature threshold, the outlet check valve is in a closed state. In other embodiments, the collection unit includes, but is not limited to, a flow meter, where the operating parameter information includes a water production of the fuel cell, and the latent heat of vaporization condition includes the water production of the fuel cell reaching a preset water production threshold. For example, a threshold value is preset in the control unit, the control unit is electrically connected with the flow meter, and when the water yield is greater than the threshold value, the latent heat exchange device is controlled to work (for example, the outlet check valve is controlled to be opened); and when the water yield is less than the threshold value, controlling the latent heat exchange device not to work (for example, closing the outlet one-way valve). When the fuel cell works, the electrochemical reaction is generated in the fuel cell at any moment to generate moisture, and the larger the output power of the fuel cell is, the larger the electrochemical reaction amount is, the more moisture is generated, so that the working state of the latent heat exchange device can be controlled according to the moisture generated by the electrochemical reaction. Of course, those skilled in the art will understand that the above-mentioned collecting unit, the operating parameter information and the latent heat of vaporization condition are only examples, and other existing or future collecting units, operating parameter information and latent heat of vaporization conditions may be applied to this embodiment, and are included in the protection scope of this embodiment by reference. For example, the collection unit simultaneously contains temperature sensor, flowmeter, satisfies simultaneously fuel cell's operating temperature reaches the temperature threshold value, when fuel cell's water yield reaches preset water yield threshold value, heat transfer device passes through the control unit control is opened the storage water tank with at least one export check valve between latent heat of vaporization device, so that latent heat of vaporization device can make the storage water in the storage water tank vaporizes, utilizes the latent heat of vaporization of storage water cools down. In some embodiments, the control unit includes, but is not limited to, a single chip microcomputer. In some embodiments, the water storage tank 1 stores a small amount of water in advance for use when the water generated by the fuel cell 4 is too low to meet the requirement of temperature reduction. In this embodiment, at least one outlet check valve is arranged between the latent heat of vaporization device and the water storage tank 1, and the outlet check valve is controlled to be opened by a control unit only when the operating parameter information about the fuel cell, which is acquired by the acquisition unit, meets a latent heat of vaporization condition, so that the latent heat of vaporization device can vaporize the water stored in the water storage tank 1, and the latent heat of vaporization of the water stored is used for cooling; and when the working parameter information does not meet the latent heat of vaporization condition, an outlet one-way valve between the water storage tank 1 and the latent heat of vaporization device is in a closed state. On one hand, the stored water in the water storage tank 1 can be saved; on the other hand, the water generated by the fuel cell received by the water storage tank 1 can be given sufficient time, so that the water received by the water storage tank 1 can be sufficiently cooled to generate water, and the whole heat exchange device can be automatically switched to different working states (for example, a general heat dissipation state and a high-efficiency heat dissipation state).
In some embodiments, as shown in fig. 4 and 5, the water storage tank 1 includes a plurality of storage compartments (e.g., the storage compartment 11 and the storage compartment 11 'shown in fig. 4 and 5, although it will be understood by those skilled in the art that fig. 4 and 5 are only examples, and the water storage tank 1 may also include three, four or more storage compartments), and the outlet check valve (e.g., the outlet check valve 7 and the outlet check valve 7' shown in fig. 4 and 5) is respectively disposed between each of the plurality of storage compartments and the latent heat of vaporization device. In some embodiments, when the water storage tank 1 includes a plurality of water storage compartments, and the outlet check valve is disposed between each water storage compartment and the latent heat of vaporization device, the control unit of the heat exchange device may individually control the opening and closing states of the outlet check valve of one or more water storage compartments, so that the latent heat of vaporization device may utilize the water stored in one or more water storage compartments. For example, as shown in fig. 4, water generated by the fuel cell 4 during operation is shunted to the corresponding water storage compartments 11 and 11 'through different pipes, and when the operating parameter information of the fuel cell 4 satisfies the latent heat of vaporization condition, the control unit may randomly control the outlet check valve corresponding to one of the water storage compartments (e.g., the outlet check valve 7 corresponding to the water storage compartment 11), or may sequentially open the outlet check valve corresponding to a single water storage compartment from left to right (e.g., first open the outlet check valve 7, and then open the outlet check valve 7' after a certain time). For another example, as shown in fig. 5, water generated by the fuel cell 4 during operation flows into the water storage tank 1 through the same pipeline, the water storage tank 1 is partitioned by a partition 12 to form a plurality of water storage compartments (for example, the water storage compartment 11 and the water storage compartment 11 'shown in fig. 5, but it is understood by those skilled in the art that three, four or more water storage compartments may be included), the height of the partition 12 is smaller than the height of the water storage tank 1, so that a certain gap 13 is left between the top end of the partition 12 and the top plate of the water storage tank 1, and when water in one water storage compartment (for example, the water storage compartment 11) is full, the water can flow into another water storage compartment (for example, the water storage compartment 11') adjacent to the water storage compartment through the gap 13. In some embodiments, with continued reference to fig. 5, the water produced by the fuel cell 4 during operation flows through the same conduit to the water storage tank 1, which conduit may be disposed in the leftmost or rightmost storage compartment of the storage tank, so as to fill each storage compartment in sequence from left to right or from right to left. Of course, it will be understood by those skilled in the art that the pipe may be disposed in any one of the water storage compartments, and the water in the water storage compartment will overflow into one or two adjacent water storage compartments. When the operating parameter information of the fuel cell 4 satisfies the latent heat of vaporization condition, the control unit may randomly control to open the outlet check valve 7 corresponding to one of the water storage compartments, may also control to open the outlet check valve 7 corresponding to the leftmost water storage compartment 11 (for example, as shown in fig. 5, when water generated by the fuel cell 4 during operation flows into the water storage tank 1 through the same pipe, the pipe is disposed in the leftmost water storage compartment of the water storage tank), or simultaneously control to open the outlet check valve 7 corresponding to the leftmost water storage compartment 11, and any other one, or the outlet check valves corresponding to any plurality of water storage compartments.
In some embodiments, a water level sensing unit (not shown) is installed in at least one of the water storage compartments, the water level sensing unit is electrically connected to the control unit, and the control unit is further configured to control an opening and closing state of an outlet check valve of the corresponding water storage compartment according to water level information detected by the water level sensing unit. For example, when the water storage tank includes a plurality of water storage compartments, and an outlet check valve is disposed between each water storage compartment and the latent heat of vaporization device, if it is detected that the operating parameter information of the fuel cell satisfies the latent heat of vaporization condition, the control unit may determine the outlet check valve of the corresponding water storage compartment according to the water level information detected by the water level sensing unit. In some embodiments, the water level sensing unit includes, but is not limited to, a water level sensor, a hydraulic pressure sensor, etc., and the water level sensing unit disposed in the water storage compartment 11 is used to detect water level information of the water storage compartment 11, so that the control unit controls the opening and closing state of the outlet check valve of the corresponding water storage compartment according to the water level information (e.g., opens or closes the outlet check valve). In some embodiments, the water level sensing unit is installed in at least one of the water storage compartments. For example, as shown in fig. 4 or fig. 5, the water storage tank may be configured such that the water level sensing unit is installed in each of the plurality of water storage compartments (e.g., the water storage compartment 11' …), and when the operating parameter information of the fuel cell 4 satisfies the latent heat of vaporization condition, the control unit determines at least one target water level information having water level information equal to or greater than a water level threshold according to the water level information detected by the plurality of water level sensing units, and uses the water storage compartment corresponding to the target water level information as the target water storage compartment, so as to control to open the outlet check valve of the target water storage compartment. In some embodiments, there may be a plurality of target water compartments having water level information equal to or greater than the water level threshold, and when there are a plurality of target water compartments, the control unit may randomly control to open the outlet check valve of at least one of the target water compartments, or sequentially open the outlet check valve of at least one of the target water compartments from left to right, or from right to left. In some embodiments, moisture is stored in one of the water storage compartments in advance so as to utilize the latent heat of vaporization of the pre-stored moisture when the latent heat of vaporization device is not sufficient to utilize the latent heat of vaporization of the moisture generated by the fuel cell. When the pre-stored moisture exists and a plurality of target water storage rooms with water level information reaching the water level threshold value are detected, the outlet one-way valve of the water storage room with the pre-stored moisture can be opened firstly. For another example, as shown in fig. 5, the water level sensing unit may be disposed in the right water storage compartment 11 '(in other words, in the water storage compartment for receiving and storing the water overflowing from the other water storage compartments adjacent thereto), and the water level sensing unit may not be disposed in the left water storage compartment 11, and when the operating parameter information of the fuel cell 4 satisfies the latent heat of vaporization condition, the control unit determines to open only the outlet check valve of the left water storage compartment 11, or to open the outlet check valves of the left and right water storage compartments 11' at the same time, according to the water level information detected by the water level sensing unit. For example, when the water level information detected by the water level sensing unit is equal to or greater than a first water level threshold and is less than a second water level threshold, the control unit controls to open only the outlet check valve of the left water storage compartment 11, and when the water level information detected by the water level sensing unit is equal to or greater than the second water level threshold, the control unit controls to open the outlet check valve of the left water storage compartment 11 and the outlet check valve 7 'of the right water storage compartment 11' at the same time. In other embodiments, if the water level information of the water storage room with the outlet check valve in the open state is smaller than the water level threshold in the process that the operating parameter information of the fuel cell 4 satisfies the latent heat of vaporization condition, the outlet check valve of the water storage room is controlled to be closed, and the outlet check valve of the next water storage room is controlled to be opened. In some embodiments, the water level information of the next water storage room is equal to or greater than the water level threshold.
In some embodiments, at least one inlet check valve 8 is disposed between the water storage compartments and the water discharge unit of the fuel cell 4, and when the inlet check valve 8 is opened, water generated during the operation of the fuel cell 4 flows into corresponding ones of the water storage compartments through the inlet check valve 8. For example, as shown in fig. 4, the plurality of water storage compartments share one inlet check valve 8, or, as shown in fig. 5, a drain unit of the fuel cell 4 and the plurality of water storage compartments are connected by one pipe, and the inlet check valve 8 is provided on the pipe. For another example, as shown in fig. 3 and 6, an inlet check valve (e.g., inlet check valve 8 ') is provided between each of the water storage compartments (e.g., water storage compartment 11') and the drain unit of the fuel cell 4. Of course, it will be understood by those skilled in the art that the arrangement of the inlet check valve 8 shown in fig. 4 is equally applicable to the embodiments corresponding to fig. 3 and 6. The arrangement of the inlet non return valve 8 shown in figures 3 and 6 is equally applicable to the embodiment corresponding to figure 4. In some embodiments, when the water storage tank 1 includes a plurality of water storage compartments, and at least one inlet check valve 8 is disposed between the plurality of water storage compartments and the water discharge unit of the fuel cell 4, the control unit is electrically connected to each inlet check valve 8, so that the control unit automatically controls to open the corresponding inlet check valve. For example, the at least one inlet check valve is sequentially opened, so that water generated by the fuel cell sequentially collects all the water storage compartments, where when the operating parameter information of the fuel cell satisfies the latent heat of vaporization condition, the control unit may control the water storage compartment which is firstly opened or is firstly filled with water (for example, each water storage compartment corresponds to one inlet check valve and one outlet check valve, when water is stored, the control unit sequentially opens the at least one inlet check valve from left to right or from right to left to store water, and when the operating parameter information satisfies the latent heat of vaporization condition, the control unit sequentially opens the at least one outlet check valve from left to right or from right to left, so that the firstly stored and better cooled water first undergoes latent heat of vaporization). For another example, the at least one inlet check valve is opened simultaneously so that water produced by the fuel cell is collected in each storage compartment simultaneously. In this embodiment, by providing an inlet check valve between the drainage unit of the fuel cell 4 and the plurality of water storage compartments, it is possible to control the flow of water generated by the fuel cell during operation into the corresponding water storage compartment.
In some embodiments, the control unit is electrically connected to each inlet check valve, and the control unit is further configured to control an opening and closing state of the inlet check valve corresponding to the water storage compartment according to the water level information of the water storage compartment. For example, the control unit controls the opening of the inlet one-way valve of the corresponding water storage room according to the water level information detected by the water level sensing unit arranged in the water storage room (for example, the inlet one-way valve of at least one water storage room with the water level information smaller than a preset threshold value is opened randomly or in a certain sequence (for example, from left to right or from right to left), and the inlet one-way valve of the water storage room with the water level information within a certain range interval is opened randomly or in a certain sequence (for example, from left to right or from right to left) so as to intensively collect the water storage room).
In some embodiments, as shown in fig. 2, the acquisition unit comprises a temperature sensor 6 for acquiring the operating temperature of the fuel cell, and the latent heat of vaporization condition comprises that the operating temperature of the fuel cell reaches a temperature threshold; the control unit is electrically connected with the temperature sensor 6 and used for controlling the opening of the outlet one-way valve 7 when the working temperature of the fuel cell 4 collected by the temperature sensor 6 reaches a temperature threshold value, so that the latent heat of vaporization device enables the water storage in the water storage tank 1 to be vaporized when in work and the latent heat of vaporization of the water storage is utilized for cooling. In some embodiments, the control unit includes but is not limited to a single chip, for example, a temperature threshold is set in the control unit, and when the current working temperature of the fuel cell collected by the temperature sensor 6 reaches the temperature threshold, the control unit controls to open the outlet check valve of the water storage tank 1 (the opening manner is the same as or similar to that of the corresponding embodiment, and will not be described herein in detail), so that the latent heat of vaporization device can vaporize the stored water in the water storage tank 1, and the latent heat of vaporization is generated at the air inlet of the heat dissipation unit by the stored water to cool. In other embodiments, when the operating temperature of the fuel cell 4 does not reach the temperature threshold, the outlet check valves 7 are both in the closed state, and the heat exchanging device can realize heat exchanging and cooling of the fuel cell 4 through the cooperation between the cooling unit 3 and the heat dissipating unit 2. For example, the fuel cell 4 may require different heat dissipation requirements under different operating conditions. For example, under a general operation condition (for example, when the output power of the fuel cell 4 is within a certain power range), the fuel cell 4 is cooled by heat exchange through the cooperation of the heat dissipation unit 2 and the cooling unit 3, so that the heat dissipation requirement of the fuel cell under the general operation condition can be met, and at this time, the outlet check valve 7 can be closed. Under a high-power working condition (for example, when the output power of the fuel cell 4 is greater than a certain power threshold), the output power of the fuel cell 4 is increased, the heat dissipation capacity is also increased rapidly, the heat dissipation requirement of the fuel cell 4 cannot be met only through the matching between the heat dissipation unit 2 and the cooling unit 3, the internal heat dissipation of the fuel cell 4 is unbalanced, and at the moment, the heat exchange device automatically opens the outlet check valve 7 of the water storage tank 1 through the control unit, so that the latent heat of vaporization device vaporizes the water stored in the water storage tank 1, and the latent heat of vaporization of the water stored at the air inlet of the heat dissipation unit is used for cooling. In this embodiment, the heat exchange device controls to open the outlet check valve 7 of the water storage tank 1 only when the fuel cell 4 needs to increase the heat dissipation efficiency of the heat dissipation unit 2, so that on one hand, the water stored in the water storage tank 1 can be saved; on the other hand, the water storage tank 1 can be used for receiving the water generated by the fuel cell for sufficient time, so that the water received by the water storage tank 1 can be fully cooled to generate water, the whole heat exchange device can be automatically switched to different working states, and the heat dissipation requirements of the fuel cell 4 under different operating conditions can be automatically adapted.
In some embodiments, the latent heat of vaporization device includes a water distribution cooling unit 5 disposed at the air inlet of the heat dissipation unit, wherein the water distribution cooling unit 5 is connected to the water outlet of the water storage tank 1 and is configured to receive and release the stored water in the water storage tank 1 during operation, so as to utilize the latent heat of vaporization of the released moisture to reduce the air temperature of the heat dissipation unit 2 at the air inlet side by vaporizing the released moisture. In some embodiments, the water distribution cooling unit 5 includes, but is not limited to, a water distributor. In other embodiments, the water distribution cooling unit 5 includes, but is not limited to, a nozzle, for example, a water outlet of the water storage tank 1 is connected to the nozzle through a water pipe or a pipeline, and the stored water in the water storage tank 1 is received and released at an air inlet of the heat dissipation unit 2 through the nozzle. Of course, it should be understood by those skilled in the art that the above-mentioned cooling unit 3 is only an example, and other existing or future water distribution cooling units, such as may be applied to the present embodiment, are also within the scope of the present application and are included herein by reference.
In some embodiments, the heat exchange device further includes a pre-cooling device disposed at the air inlet of the heat dissipation unit. In some embodiments, the pre-cooling device includes, but is not limited to, a pre-cooling plate, a pre-cooling cloth. In some embodiments, the pre-cooling device is made using an organic wet film material. In other embodiments, the pre-cooling device is made of a foamed metal material. Of course, it will be understood by those skilled in the art that the materials used in the above-described pre-cooling device are merely examples, and other materials that may be present or later come within the scope of the present application, such as those that can be adapted to the present embodiment, are also within the scope of the present application and are herein incorporated by reference. For example, other materials capable of providing adiabatic humidification and cooling of air. In some embodiments, the pre-cooling device is in the form of a plate; in other embodiments, the pre-cooling device is a shutter device or a roller shutter (e.g., the pre-cooling device may be deployed or stowed). In some embodiments, the pre-cooling device is disposed on the heat dissipation unit, for example, the heat dissipation unit includes a heat sink, and the pre-cooling device is disposed at an air inlet of the heat sink. In other embodiments, the pre-cooling device may be disposed on the base. For example, the heat exchanging device further includes a base 53, the pre-cooling device 52 is vertically disposed on the base 53, and the pre-cooling device 52 is perpendicular to the air inlet direction of the air inlet of the heat dissipating unit 2. In some embodiments, as shown in fig. 7, and with further reference to fig. 8 and 9, the pre-cooling device 52 is vertically disposed on the base 53, and the pre-cooling device 52 is perpendicular to the air inlet direction of the air inlet of the heat dissipation unit 2, so as to maximize the evaporation area of water distributed on the pre-cooling device 52. In some embodiments, the pre-cooling device 52 is fixedly connected to the base 53. In other embodiments, the pre-cooling device 52 is rotatably disposed on the base 53, and for specific description of this portion, please refer to the following embodiments, which are not described herein. In this embodiment, the air inlet of the heat dissipation unit is provided with the pre-cooling device, so that the water released by the water distribution cooling unit is uniformly distributed on the pre-cooling device, thereby improving the efficiency of latent heat of vaporization and further improving the heat dissipation effect.
In some embodiments, the heat exchange device further includes a driving unit, the driving unit is respectively connected to the control unit and the pre-cooling device, the control unit is further configured to control the driving unit to drive the pre-cooling device to expand when the latent heat of vaporization device works, and control the driving unit to drive the pre-cooling device to retract when the latent heat of vaporization device does not work. In some embodiments, the driving unit includes, but is not limited to, a driving motor, for example, the pre-cooling device is a shutter or a roller shutter type pre-cooling device (e.g., a commercially available electric shutter, an electric roller shutter, etc.), and the shutter or the roller shutter type pre-cooling device is retracted or extended by the driving motor. In other embodiments, the pre-cooling device 52 is disposed on the base 53, and the pre-cooling device 52 is rotatably disposed on the base 53, in particular, the pre-cooling device 52 may be rotatably disposed on the base 53 through a hinge. For example, when the latent heat of vaporization device is operated (in some embodiments, the latent heat of vaporization device is operated when a latent heat of vaporization condition is satisfied), the control unit controls the driving unit to drive the pre-cooling device to a state perpendicular to the base (i.e., an "expanded" state). For example, as shown in fig. 10, the pre-cooling device 52 is driven by a driving device to rotate from the state of the pre-cooling device 52 to the state of the pre-cooling device 52 '(for example, when the latent heat of vaporization condition is not satisfied, the driving device is controlled to return the pre-cooling device to the initial state), or alternatively, to rotate from the state of the pre-cooling device 52' to the state of the pre-cooling device 52 (for example, when the latent heat of vaporization condition is satisfied, the driving device is controlled to drive the pre-cooling device to the state perpendicular to the base). In some embodiments, when the fuel cell meets the condition of latent heat of vaporization, the control unit controls the opening of the outlet one-way valve so that the latent heat of vaporization device can vaporize the water stored in the water storage tank 1, utilizes the latent heat of vaporization of the water stored for cooling, and controls the driving unit to drive the pre-cooling device to a state perpendicular to the base. In some embodiments, the drive unit includes, but is not limited to, a telescoping motor, and the control unit is electrically connected to the motor. For example, the pre-cooling device 52 is hinged to the base 53, so that the pre-cooling device 52 is rotatably disposed on the base 53, and one end of a telescopic rod of the telescopic motor is connected to the pre-cooling device 52, so that the telescopic motor can drive the pre-cooling device 52 to rotate on the base 53 by stretching the telescopic rod. In this embodiment, the automation of the heat exchanging device described in the present application is further increased, and when the heat dissipation efficiency of the fuel cell 4 needs to be increased, the control unit automatically controls the driving unit to drive the pre-cooling device 52 to rotate to a state perpendicular to the base 53.
In some embodiments, the water distribution cooling unit comprises a water distributor 51 disposed at the air inlet of the heat dissipation unit, wherein the water distributor 51 is connected to the water outlet of the water storage tank 1 through a pipe, and a water pump 54 is disposed on the pipe and is configured to receive and release the stored water in the water storage tank during operation, so as to reduce the air temperature of the heat dissipation unit at the air inlet side by using the latent heat of vaporization of the released water by vaporizing the released water. For example, to improve the heat dissipation efficiency, the water distribution cooling unit includes a water distributor 51, so that the water in the water storage tank is uniformly distributed to the pre-cooling device 52 through the water distributor 51.
In some embodiments, the heat exchange device further comprises a condensed water collecting unit 9, the water discharging unit of the fuel cell is connected with the inlet of the condensed water collecting unit, and the outlet of the condensed water collecting unit is connected with the water inlet of the water storage tank. In some embodiments, the condensation collection unit 9 is used to condense the moisture generated by the fuel cell 4.
In some embodiments, the condensate collection unit comprises a vapor-liquid separator or a condenser.
Of course, it will be understood by those skilled in the art that the above-described condensation water collecting unit is only an example, and other existing or future condensation water collecting units may be applied to the present embodiment, and are included in the protection scope of the present application by reference.
In some embodiments, as shown in fig. 8, 9 and 10, the heat dissipation unit 2 includes a heat sink 21 and a heat dissipation fan 22, wherein the heat dissipation fan 22 is disposed on one side of the latent heat of vaporization device, or the heat dissipation fan 22 is disposed on one side of the heat sink 21. For example, the heat dissipation unit 2 includes a heat sink 21 and a heat dissipation fan, the air inlet of the heat dissipation unit 2 specifically refers to the air inlet of the heat sink 21, and the latent heat vaporization device is disposed at the air inlet of the heat sink 21. In some embodiments, the heat sink comprises a blow type heat sink or a suction type heat sink, and when the heat sink comprises the blow type heat sink, as shown in fig. 8, the heat dissipation fan is disposed at one side of the latent heat of vaporization device; when the heat sink includes the air-suction type heat sink, as shown in fig. 9, the heat dissipation fan is disposed at one side of the heat sink.
According to another aspect of the present application, still provide a fuel cell, including fuel cell stack, heat transfer device includes storage water tank, radiating element, cooling unit, storage water tank connection fuel cell's drainage unit, the storage water tank is used for receiving and storing produced water in the fuel cell stack course of operation, radiating element with cooling unit is used for the cooperation to realize right fuel cell stack or air conditioning system carry out the heat transfer cooling and handle, its characterized in that, heat transfer device still includes: the latent heat of vaporization device is connected with a water outlet of the water storage tank and is used for vaporizing the stored water in the water storage tank during working and utilizing the latent heat of vaporization of the stored water for cooling. Here, the heat exchanger described in this embodiment is the same as or similar to the heat exchanger described in any of the above embodiments, and details thereof are not repeated herein.
Fig. 13 shows a method for exchanging heat of a fuel cell by a heat exchanging device according to another embodiment of the present application, the heat exchanging device includes a water storage tank, a heat dissipating unit, and a cooling unit, the water storage tank is connected to a water draining unit of the fuel cell, the water storage tank is used for receiving and storing water generated during the operation of the fuel cell, the heat dissipating unit and the cooling unit are used in cooperation to implement a heat exchanging and temperature reducing process for the fuel cell, and the heat exchanging device further includes: the method comprises the following steps of S11, S12, and in step S11, monitoring whether the fuel cell meets a latent heat of vaporization condition in real time during the operation process of the fuel cell; in step S12, if yes, controlling to open at least one outlet check valve to make the latent heat of vaporization device vaporize the water in the water storage tank, and utilizing the latent heat of vaporization of the stored water to cool. In some embodiments, the heat exchange device is the same as or similar to the heat exchange device of any of the embodiments, and the description of the heat exchange device is not repeated herein. In some embodiments, the latent heat of vaporization conditions include, but are not limited to, the water production of the fuel cell reaching a preset water production threshold, and the operating temperature of the fuel cell reaching a preset temperature threshold. In other embodiments, it may also be determined whether the latent heat of vaporization condition is satisfied based on the operating state of the usage carrier of the fuel cell, for example, when the driver operates the fuel cell power system, the magnitude of the output power of the fuel cell is changed at any time through a throttle (i.e., an accelerator) or the like. Therefore, the working state of the heat exchange device can be determined according to the operation mode of a driver, for example, when the fuel cell is required to output high power, the driver increases the opening of a throttle valve, if the opening is larger than a threshold value, a signal is sent to a control system to control the heat exchange device to work, and the heat dissipation requirement of the fuel cell at high power output is met; when the opening of the throttle valve is reduced by a driver, the fuel cell correspondingly outputs low power, a general heat dissipation system meets the heat dissipation capacity, and at the moment, a signal is sent to the control system, and the heat exchange device stops working. For example, when the operating temperature of the fuel cell reaches a temperature threshold, the heat exchange device controls to open an outlet one-way valve between the latent heat of vaporization device and the water storage tank, so that the latent heat of vaporization device can vaporize the water stored in the water storage tank, and the latent heat of vaporization of the water stored is utilized to cool the water; and when the working temperature of the fuel cell does not reach the temperature threshold value, the outlet one-way valve is in a closed state. Of course, it will be understood by those skilled in the art that the above-mentioned latent heat of vaporization conditions are merely exemplary, and other conditions of latent heat of vaporization that exist or may be later come into existence, such as being applicable to the present embodiment, are also within the scope of the present embodiment and are included herein by reference. The following description will be given mainly taking as an example that the latent heat of vaporization condition includes that the operating temperature of the fuel cell reaches a preset temperature threshold. For example, the fuel cell 4 may require different heat dissipation requirements under different operating conditions. For example, under a general operation condition, the heat dissipation unit and the cooling unit cooperate to operate to meet the heat dissipation requirement of the fuel cell, the inside of the fuel cell stack is in a state of heat dissipation balance, at this time, the temperature sensor displays that the temperature is within a normal range (for example, the working temperature of the fuel cell does not reach the temperature threshold), at this time, the latent heat of vaporization device does not work (for example, the outlet check valve 7 is in a closed state), and meanwhile, the fuel cell generates moisture and stores the moisture in the water storage tank 1, so that the fuel cell can be sufficiently cooled. Under the working condition of high power, the output power of the fuel cell system is increased, the heat dissipation capacity is increased rapidly, the heat dissipation unit and the cooling unit can not meet the heat dissipation requirement when in matched operation, the internal heat dissipation of the fuel cell is unbalanced, the temperature is increased, the current working temperature of the fuel cell, which is acquired by the temperature sensor, reaches the temperature threshold value, at least one outlet one-way valve is controlled to be opened, and the latent heat vaporization device starts to work to utilize the latent heat of vaporization of the water in the water storage tank to reduce the air temperature at the air inlet of the heat dissipation unit. In some embodiments, the latent heat of vaporization device includes, but is not limited to, a water distribution cooling unit, for example, when the operating temperature of the fuel cell reaches a temperature threshold, at least one outlet check valve is controlled to be opened, so that the water distribution cooling unit receives and releases the stored water in the water storage tank. In some embodiments, the heat dissipation unit includes a heat dissipation fan and a heat sink, the heat dissipation fan blows or sucks high-temperature dry air through a wet pre-cooling device, and since the air temperature at the inlet of the heat sink passes through the pre-cooling device and is subjected to heat insulation and humidification, the humidity rises, and the temperature greatly drops, so that the heat exchange temperature difference and the specific heat capacity of the air are increased, the heat dissipation efficiency can be improved, and the area (volume) of the heat sink required can be reduced on the premise of ensuring that the average temperature of the fuel cell is unchanged. Therefore, the volume occupied by the fuel cell system is reduced, or more reaction units are placed in a limited space, the volume power density of the fuel cell system can be correspondingly improved, heat on more radiators can be taken away through adiabatic humidification, cooling and heat exchange capacity enhancement, and the heat dissipation requirement of the fuel cell system under the high-power working condition operation is met.
In some embodiments, the heat exchange device further comprises a collection unit; the step S11 includes: and acquiring the working parameter information of the fuel cell through the acquisition unit, and monitoring whether the working parameter information meets the latent heat of vaporization condition in real time in the working process of the fuel cell. In some embodiments, the collecting unit includes, but is not limited to, a temperature sensor for collecting an operating temperature of the fuel cell, where the operating parameter information includes the operating temperature of the fuel cell, and the latent heat of vaporization condition includes the operating temperature of the fuel cell reaching a temperature threshold. For example, when the operating temperature of the fuel cell reaches a temperature threshold, the heat exchange device controls to open an outlet one-way valve between the latent heat of vaporization device and the water storage tank, so that the latent heat of vaporization device can vaporize the water stored in the water storage tank, and the latent heat of vaporization of the water stored is utilized to cool the water; and when the working temperature of the fuel cell does not reach the temperature threshold value, the outlet one-way valve is in a closed state. In other embodiments, the collecting unit includes, but is not limited to, a water level sensor or a hydraulic sensor for collecting water level information in the water storage tank, where the operating parameter information includes water level information of the water stored in the water storage tank, and the latent heat of vaporization condition includes that the water level information reaches a water level threshold. For example, when the water level of the stored water in the water storage tank reaches a water level threshold, controlling to open an outlet one-way valve between the latent heat of vaporization device and the water storage tank, so that the latent heat of vaporization device can vaporize the stored water in the water storage tank, and the latent heat of vaporization of the stored water is utilized to cool; and when the water level information of the stored water in the water storage tank does not reach the water level threshold value, the outlet one-way valve is in a closed state.
In some embodiments, the water storage tank includes a plurality of water storage compartments, the outlet check valve is respectively disposed between each of the plurality of water storage compartments and the water distribution cooling unit, a water level sensing unit is installed in at least one of the water storage compartments, and if the operating temperature reaches a temperature threshold, the controlling of the opening of the outlet check valve includes: if the working temperature reaches a temperature threshold value, the heat exchange device determines a target water storage room from the at least one water storage room according to water level information detected by the water level sensing unit, wherein the water level information of the target water storage room is equal to or greater than the water level threshold value; and controlling to open an outlet one-way valve of the target water storage room. In some embodiments, the water level sensing unit includes, but is not limited to, a water level sensor, a hydraulic pressure sensor, etc., and the water level sensing unit disposed in the water storage compartment 11 is used to detect water level information of the water storage compartment 11, so as to control the opening and closing state of the outlet check valve of the corresponding water storage compartment (e.g., open or close the outlet check valve) according to the water level information. In some embodiments, the water level sensing unit is installed in at least one of the water storage compartments. For example, as shown in fig. 4 or fig. 5, the water storage tank may be configured such that the water level sensing unit is installed in each of the multiple water storage compartments (e.g., the water storage compartment 11' …), for example, when the operating parameter information of the fuel cell 4 satisfies the latent heat of vaporization condition (e.g., when the operating temperature reaches the temperature threshold), at least one target water level information having water level information equal to or greater than the first water level threshold is determined according to the water level information detected by the multiple water level sensing units, and the water storage compartment corresponding to the target water level information is used as the target water storage compartment, so as to control to open the outlet check valve of the target water storage compartment. In some embodiments, there may be a plurality of target water compartments, and when there are a plurality of target water compartments, the opening of the outlet check valve of at least one of the target water compartments may be randomly controlled, or the opening of the outlet check valve of at least one of the target water compartments may be sequentially performed from left to right, or from right to left. In some embodiments, at least one inlet check valve is arranged between the plurality of water storage rooms and the drainage unit of the fuel cell, when water is stored, the heat exchange device can sequentially open the inlet check valves from left to right or from right to left according to a certain sequence to store water, at this time, the stored water in the water storage room with the first stored water has sufficient cooling time, the stored water is more, the water level information is higher, and the heat exchange device directly determines the stored water in the target water storage room according to the water level information to be more beneficial to participating in latent heat radiation work. For another example, as shown in fig. 5, the water level sensing unit may be disposed in the right water storage room 11 ' (in other words, in the water storage room for receiving and storing the water overflowing from the other water storage room adjacent thereto), and the water level sensing unit may not be disposed in the left water storage room 11, and when the operating parameter information of the fuel cell 4 satisfies the latent heat of vaporization condition, it may be determined to open only the outlet check valve of the left water storage room 11 (for example, determine the water storage room 11 as the target water storage room) or to open the outlet check valves of the left water storage room 11 and the right water storage room 11 ' at the same time (for example, determine the water storage room 11 and the water storage room 11 ' as the target water storage room) according to the water level information detected by the water level sensing unit. For example, when the water level information detected by the water level sensing unit is equal to or greater than a first water level threshold and is less than a third water level threshold, it is determined that the target storage room is the storage room 11, and only the outlet check valve of the left storage room 11 is controlled to be opened, and when the water level information detected by the water level sensing unit is equal to or greater than the third water level threshold, it is determined that the target storage room is the storage room 11, the storage room 11 ', and the outlet check valve 7' of the left storage room 11 and the outlet check valve 7 'of the right storage room 11' are controlled to be opened simultaneously.
In some embodiments, the method further comprises a step S12 (not shown), the step S12 comprising: if the working temperature of the fuel cell is lower than the temperature threshold value in the process that the outlet one-way valve of the target water storage room is in the opening state, the heat exchange device controls to close the outlet one-way valve of the target water storage room. For example, when the working temperature of the fuel cell reaches the temperature threshold value, the heat exchange device controls to open an outlet one-way valve of at least one target water storage room, and the latent heat of vaporization device starts to work; and in the process that the outlet one-way valve of the target water storage room is in an opening state, if the working temperature of the fuel cell is reduced to be lower than the working temperature of the temperature threshold, at the moment, the heat exchange device controls to close the outlet one-way valve of the target water storage room, and the latent heat of vaporization device stops working.
In some embodiments, the method further includes step S13 (not shown), and in step S13, if the water level information of the target water storage room is less than the second water level threshold during the process that the operating temperature of the fuel cell is equal to or greater than the temperature threshold, the heat exchanging device controls to close the outlet check valve of the target water storage room and controls to open the outlet check valve of the next water storage room. In some embodiments, the second water level threshold is less than the first water level threshold. For example, when the operating temperature of the fuel cell reaches the temperature threshold, the heat exchange device controls to open an outlet one-way valve of at least one target water storage room, the water distribution cooling unit starts to operate, and if the water level information of the target water storage room with the opened outlet one-way valve is smaller than the second water level threshold in the process that the operating temperature of the fuel cell 4 is equal to or greater than the temperature threshold, it indicates that the water storage room of the target water storage room is about to be used up, and at this time, the heat exchange device may control to close the outlet one-way valve of the water storage room and control to open an outlet one-way valve of the next water storage room.
In some embodiments, at least one inlet check valve is disposed between the water storage compartments and the water discharge unit of the fuel cell, and the method further includes step S14 (not shown), in step S14, the heat exchange device controls the opening and closing states of the inlet check valve corresponding to the water storage compartment according to the water level information of the water storage compartment. For example, the heat exchange device controls to open the inlet one-way valve of the corresponding water storage room according to the water level information detected by the water level sensing unit arranged in the water storage room (for example, the inlet one-way valve of the water storage room with the water level information smaller than a preset threshold value is opened, and the inlet one-way valve of the water storage room is controlled to be closed after the water level information of the water storage room reaches the preset threshold value; for example, the inlet one-way valve of the water storage room with the water level information within a certain range interval is opened so as to intensively and fully collect the water storage room, and the inlet one-way valve of the water storage room is controlled to be closed after the water level information of the water storage room reaches the preset full water collection level threshold value).
In some embodiments, the heat exchanging device further includes a pre-cooling device and a driving unit, the driving unit is connected to the pre-cooling device, and the method further includes step S15 (not shown), in step S15, if the latent heat of vaporization condition is satisfied, the driving unit is controlled to drive the pre-cooling device to expand, otherwise, the driving unit is controlled to drive the pre-cooling device to retract. The pre-cooling device is a shutter or a roller shutter type pre-cooling device (for example, a commercially available electric shutter, an electric roller shutter and the like), and the shutter or the roller shutter type pre-cooling device is driven by a driving motor to be folded or unfolded. In other embodiments, the pre-cooling device 52 is disposed on the base 53, and the pre-cooling device 52 is rotatably disposed on the base 53, in particular, the pre-cooling device 52 may be rotatably disposed on the base 53 through a hinge. In some embodiments, as shown in fig. 7, and with further reference to fig. 8 and 9, the pre-cooling device 52 is vertically disposed on the base 53, and the pre-cooling device 52 is perpendicular to the air inlet direction of the air inlet of the heat dissipation unit 2, so as to maximize the evaporation area of water distributed on the pre-cooling device 52. In some embodiments, the pre-cooling device 52 is rotatably disposed on the base 53. For example, as shown in fig. 10, the pre-cooling device 52 is driven by a driving device to rotate from the state of the pre-cooling device 52 to the state of the pre-cooling device 52 '(for example, when the operating temperature of the fuel cell collected by the temperature sensor is less than the temperature threshold, the driving device is controlled to return the pre-cooling device to the initial state), or alternatively, the state of the pre-cooling device 52' is rotated to the state of the pre-cooling device 52 (for example, when the operating temperature of the fuel cell collected by the temperature sensor reaches the temperature threshold, the driving device is controlled to drive the pre-cooling device to the state perpendicular to the base). In some embodiments, when the operating temperature of the fuel cell reaches the temperature threshold, the heat exchange device controls the driving device to drive the pre-cooling device to a state perpendicular to the base while controlling to open the outlet check valve so that the water distribution cooling unit 5 can receive and release the stored water in the water storage tank 1. In some embodiments, the drive means includes, but is not limited to, a telescoping motor. For example, the pre-cooling device 52 is hinged to the base 53, so that the pre-cooling device 52 is rotatably disposed on the base 53, and one end of a telescopic rod of the telescopic motor is connected to the pre-cooling device 52, so that the telescopic rod can be extended and contracted by the telescopic motor to drive the pre-cooling device 52 to rotate on the base 53. In this embodiment, the automation of the heat exchanging device of the present application is further increased, and when the heat dissipation efficiency of the fuel cell 4 needs to be increased, the heat exchanging device automatically controls the driving device to drive the pre-cooling device 52 to rotate to a state perpendicular to the base 53.
Of course, it will be understood by those skilled in the art that the above-described driving mechanism is merely exemplary, and other existing or future driving mechanisms, such as those that may be used in the present embodiment, are also within the scope of the present application and are incorporated herein by reference.
Fig. 14 is a schematic structural diagram of a heat exchange device using a fuel cell according to an embodiment of the present application. Heat transfer device includes storage water tank, radiating unit, cooling unit, storage water tank connection fuel cell's drainage unit, the storage water tank is used for receiving and storing produced water in the fuel cell working process, radiating unit with cooling unit is used for the cooperation to realize right fuel cell carries out the heat transfer cooling and handles, heat transfer device still includes: latent heat of vaporization device, the storage water tank with be provided with at least one export check valve between the latent heat of vaporization device, this heat transfer device still includes: the module is used for monitoring whether the fuel cell meets a latent heat of vaporization condition in real time in the working process of the fuel cell; and the second module is used for controlling to open at least one outlet one-way valve if the first module meets the requirement, so that the latent heat of vaporization device enables the water in the water storage tank to vaporize, and the latent heat of vaporization of the stored water is utilized for cooling.
Here, the specific implementation of the one-module and the two-module is the same as or similar to the embodiments of the step S11 and the step S12, and therefore, the detailed description is omitted, and the specific implementation is incorporated herein by reference.
In some embodiments, the heat exchange device further comprises a collection unit; the one-to-one module is used for: and acquiring the working parameter information of the fuel cell through the acquisition unit, and monitoring whether the working parameter information meets the latent heat of vaporization condition in real time in the working process of the fuel cell.
In some embodiments, the water storage tank includes a plurality of storage compartments, the outlet check valve is disposed between each of the storage compartments and the latent heat of vaporization device, a water level sensing unit is installed in at least one of the storage compartments, and the secondary module is configured to: if so, determining a target water storage room from the at least one water storage room according to the water level information detected by the water level sensing unit, wherein the water level information of the target water storage room is equal to or greater than a first water level threshold value; and controlling to open an outlet one-way valve of the target water storage room.
In some embodiments, the second module is further to: if so, determining a target water storage room from the at least one water storage room according to the water level information detected by the water level sensing unit, wherein the water level information of the target water storage room is equal to or greater than a first water level threshold value; and controlling to open an outlet one-way valve of the target water storage room.
Here, the specific implementation of the first and second modules is the same as or similar to the embodiment of the step S12, and therefore, the detailed description thereof is omitted, and the detailed description thereof is incorporated herein by reference.
In some embodiments, the heat exchange device further comprises a triple module (not shown) for: and if the water level information of the target water storage room is smaller than a second water level threshold value in the process that the working temperature of the fuel cell is equal to or larger than the temperature threshold value, controlling to close the outlet one-way valve of the target water storage room and controlling to open the outlet one-way valve of the next water storage room.
Here, the example of the specific implementation manner of the three modules is the same as or similar to the embodiment of the step S13, and therefore, the description thereof is omitted, and the detailed implementation manner of the three modules is incorporated herein by reference.
In some embodiments, at least one inlet check valve is disposed between the water storage compartments and the water discharge unit of the fuel cell, and the heat exchange device further includes a quad module (not shown) for: and controlling the opening and closing state of an inlet one-way valve corresponding to the water storage room according to the water level information of the water storage room.
Here, the implementation of the above-mentioned four modules is the same as or similar to the embodiment of step S14, and therefore, the description thereof is omitted, and the description thereof is incorporated herein by reference.
In some embodiments, the water distribution cooling unit includes a pre-cooling device, a base, and a driving device, the pre-cooling device is hinged to the base, the driving device is connected to the pre-cooling device, the heat exchange device further includes a five-module (not shown), and the five-module is configured to: and if the working temperature of the fuel cell reaches a temperature threshold value, controlling the driving device to drive the precooling device to be in a state vertical to the base.
Here, the example of the specific implementation manner of the above-mentioned one-five module is the same as or similar to the embodiment of the step S15, and therefore, the description thereof is omitted, and the detailed implementation manner of the above-mentioned one-five module is incorporated herein by reference.
In addition to the methods and apparatus described in the embodiments above, the present application also provides a computer readable storage medium storing computer code that, when executed, performs the method as described in any of the previous items.
The present application also provides a computer program product, which when executed by a computer device performs the method of any of the preceding claims.
The present application further provides a computer device, comprising:
one or more processors;
a memory for storing one or more computer programs;
the one or more computer programs, when executed by the one or more processors, cause the one or more processors to implement the method as recited in any preceding claim.
FIG. 15 illustrates an exemplary system that can be used to implement the various embodiments described herein;
in some embodiments, as shown in FIG. 15, the system 300 can be implemented as any of the devices in the various embodiments described. In some embodiments, system 300 may include one or more computer-readable media (e.g., system memory or NVM/storage 320) having instructions and one or more processors (e.g., processor(s) 305) coupled with the one or more computer-readable media and configured to execute the instructions to implement modules to perform the actions described herein.
For one embodiment, system control module 310 may include any suitable interface controllers to provide any suitable interface to at least one of processor(s) 305 and/or to any suitable device or component in communication with system control module 310.
The system control module 310 may include a memory controller module 330 to provide an interface to the system memory 315. Memory controller module 330 may be a hardware module, a software module, and/or a firmware module.
System memory 315 may be used to load and store data and/or instructions for system 300, for example. For one embodiment, system memory 315 may include any suitable volatile memory, such as suitable DRAM. In some embodiments, the system memory 315 may comprise a double data rate type four synchronous dynamic random access memory (DDR4 SDRAM).
For one embodiment, system control module 310 may include one or more input/output (I/O) controllers to provide an interface to NVM/storage 320 and communication interface(s) 325.
For example, NVM/storage 320 may be used to store data and/or instructions. NVM/storage 320 may include any suitable non-volatile memory (e.g., flash memory) and/or may include any suitable non-volatile storage device(s) (e.g., one or more Hard Disk Drives (HDDs), one or more Compact Disc (CD) drives, and/or one or more Digital Versatile Disc (DVD) drives).
NVM/storage 320 may include storage resources that are physically part of the device on which system 300 is installed or may be accessed by the device and not necessarily part of the device. For example, NVM/storage 320 may be accessible over a network via communication interface(s) 325.
Communication interface(s) 325 may provide an interface for system 300 to communicate over one or more networks and/or with any other suitable device. System 300 may wirelessly communicate with one or more components of a wireless network according to any of one or more wireless network standards and/or protocols.
For one embodiment, at least one of the processor(s) 305 may be packaged together with logic for one or more controller(s) of the system control module 310, such as memory controller module 330. For one embodiment, at least one of the processor(s) 305 may be packaged together with logic for one or more controller(s) of the system control module 310 to form a System In Package (SiP). For one embodiment, at least one of the processor(s) 305 may be integrated on the same die with logic for one or more controller(s) of the system control module 310. For one embodiment, at least one of the processor(s) 305 may be integrated on the same die with logic for one or more controller(s) of the system control module 310 to form a system on a chip (SoC).
In various embodiments, system 300 may be, but is not limited to being: a server, a workstation, a desktop computing device, or a mobile computing device (e.g., a laptop computing device, a handheld computing device, a tablet, a netbook, etc.). In various embodiments, system 300 may have more or fewer components and/or different architectures. For example, in some embodiments, system 300 includes one or more cameras, a keyboard, a Liquid Crystal Display (LCD) screen (including a touch screen display), a non-volatile memory port, multiple antennas, a graphics chip, an Application Specific Integrated Circuit (ASIC), and speakers.
It should be noted that the present application may be implemented in software and/or a combination of software and hardware, for example, implemented using Application Specific Integrated Circuits (ASICs), general purpose computers or any other similar hardware devices. In one embodiment, the software programs of the present application may be executed by a processor to implement the steps or functions described above. As such, the software programs (including associated data structures) of the present application can be stored in a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. Additionally, some of the steps or functions of the present application may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
Additionally, some portions of the present application may be applied as a computer program product, such as computer program instructions, which, when executed by a computer, may invoke or provide the method and/or solution according to the present application through the operation of the computer. Those skilled in the art will appreciate that the forms of computer program instructions that reside on a computer-readable medium include, but are not limited to, source files, executable files, installation package files, and the like, and that the manner in which the computer program instructions are executed by a computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. In this regard, computer readable media can be any available computer readable storage media or communication media that can be accessed by a computer.
Communication media includes media whereby communication signals, including, for example, computer readable instructions, data structures, program modules, or other data, are transmitted from one system to another. Communication media may include conductive transmission media such as cables and wires (e.g., fiber optics, coaxial, etc.) and wireless (non-conductive transmission) media capable of propagating energy waves such as acoustic, electromagnetic, RF, microwave, and infrared. Computer readable instructions, data structures, program modules or other data may be embodied in a modulated data signal, such as a carrier wave or similar mechanism that is embodied in a wireless medium, such as part of spread-spectrum techniques, for example. The term "modulated data signal" means a signal that has one or more of its characteristics set or changed in such a manner as to encode information in the signal. The modulation may be analog, digital or hybrid modulation techniques.
By way of example, and not limitation, computer-readable storage media may include volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules or other data. For example, computer-readable storage media include, but are not limited to, volatile memory such as random access memory (RAM, DRAM, SRAM); and non-volatile memory such as flash memory, various read-only memories (ROM, PROM, EPROM, EEPROM), magnetic and ferromagnetic/ferroelectric memories (MRAM, FeRAM); and magnetic and optical storage devices (hard disk, magnetic tape, CD, DVD); or other now known media or later developed that can store computer-readable information/data for use by a computer system.
An embodiment according to the present application herein comprises an apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform a method and/or solution according to embodiments of the present application as described above.
It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it will be obvious that the term "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.

Claims (25)

1. The utility model provides a be applied to fuel cell's heat transfer device, includes storage water tank, radiating unit, cooling unit, fuel cell's drainage unit is connected to the storage water tank, the storage water tank is used for receiving and storing produced water in the fuel cell working process, radiating unit with cooling unit is used for the cooperation to realize right fuel cell carries out the heat transfer cooling and handles, its characterized in that, heat transfer device still includes:
the latent heat of vaporization device is connected with a water outlet of the water storage tank and is used for vaporizing the stored water in the water storage tank during work and cooling by utilizing the latent heat of vaporization of the stored water.
2. The heat exchange device according to claim 1, wherein at least one outlet check valve is disposed between the water storage tank and the latent heat of vaporization device, the heat exchange device further comprises a control unit, the control unit is electrically connected to the outlet check valve, and the control unit is configured to control the opening of the outlet check valve when a latent heat of vaporization condition is met, so that the latent heat of vaporization device vaporizes the stored water in the water storage tank when in operation, and the latent heat of vaporization of the stored water is utilized for cooling.
3. The heat exchange device of claim 2, further comprising an acquisition unit for acquiring information about operating parameters of the fuel cell;
the control unit is further electrically connected with the acquisition unit and used for controlling the opening of the outlet one-way valve when the working parameter information acquired by the acquisition unit meets the latent heat of vaporization condition, so that the latent heat of vaporization device enables the water storage in the water storage tank to vaporize when in work and the latent heat of vaporization of the water storage is utilized for cooling.
4. The heat exchange device of claim 3, wherein the water storage tank comprises a plurality of water storage compartments, and the outlet check valve is arranged between each water storage compartment of the plurality of water storage compartments and the latent heat of vaporization device.
5. The heat exchange device of claim 4, wherein a water level sensing unit is installed in at least one of the water storage compartments, the water level sensing unit is electrically connected with the control unit, and the control unit is further used for controlling the opening and closing state of an outlet check valve corresponding to the water storage compartment according to water level information detected by the water level sensing unit.
6. The heat exchange device according to claim 4 or 5, wherein at least one inlet check valve is arranged between the plurality of water storage rooms and the drainage unit of the fuel cell, and when the inlet check valve is opened, water generated in the operation process of the fuel cell flows into the corresponding plurality of water storage rooms in the plurality of corresponding water storage rooms through the inlet check valve.
7. The heat exchange device of claim 6, wherein the control unit is electrically connected to each inlet check valve, and the control unit is further configured to control an opening and closing state of the inlet check valve corresponding to the water storage compartment according to the water level information of the water storage compartment.
8. The heat exchange device according to any one of claims 3 to 7, wherein the acquisition unit includes a temperature sensor for acquiring an operating temperature of the fuel cell, and the latent heat of vaporization condition includes the operating temperature of the fuel cell reaching a temperature threshold;
the control unit is electrically connected with the temperature sensor and used for controlling the opening of the outlet one-way valve when the working temperature of the fuel cell acquired by the temperature sensor reaches a temperature threshold value, so that the latent heat of vaporization device enables the stored water in the water storage tank to vaporize when in work and the latent heat of vaporization of the stored water is utilized for cooling.
9. The heat exchange device according to any one of claims 1 to 8, wherein the latent heat of vaporization device comprises a water distribution cooling unit disposed at an air inlet of the heat dissipation unit, wherein the water distribution cooling unit is connected to an outlet of the water storage tank and is configured to receive and release the stored water in the water storage tank during operation, so as to utilize latent heat of vaporization of the released water for cooling by vaporizing the released water.
10. The heat exchange device of claim 9, further comprising a pre-cooling device, wherein the pre-cooling device is operatively positioned at the air inlet of the heat dissipation unit.
11. The heat exchange device according to claim 10, further comprising a driving unit, wherein the driving unit is respectively connected to the control unit and the pre-cooling device, and the control unit is further configured to control the driving unit to drive the pre-cooling device to unfold when the latent heat vaporization device is in operation, and control the driving unit to drive the pre-cooling device to fold when the latent heat vaporization device is not in operation.
12. The heat exchange device according to any one of claims 9 to 11, wherein the water distribution and temperature reduction unit comprises a water distributor disposed at an air inlet of the heat dissipation unit, wherein the water distributor is connected to an outlet of the water storage tank through a pipeline, and a water pump is disposed on the pipeline and is configured to receive and release the stored water in the water storage tank during operation, so as to utilize latent heat of vaporization of the released water to reduce the temperature by vaporizing the released water.
13. The heat exchange device according to any one of claims 1 to 12, further comprising a condensed water collection unit, wherein the drain unit of the fuel cell is connected to an inlet of the condensed water collection unit, and an outlet of the condensed water collection unit is connected to a water inlet of the water storage tank.
14. The heat exchange device of claim 13, wherein the condensate collection unit comprises a vapor-liquid separator or a condenser.
15. The heat exchange device according to any one of claims 1 to 14, wherein the heat dissipation unit comprises a heat sink, a heat dissipation fan provided on one side of the latent heat of vaporization device, or the heat dissipation fan provided on one side of the heat sink.
16. The heat exchange device of claim 15, wherein the heat sink comprises an air blowing heat sink or an air suction heat sink, and when the heat sink comprises the air blowing heat sink, the heat dissipation fan is disposed on a side of the latent heat of vaporization device; when the heat dissipation unit comprises the air suction type heat radiator, the heat dissipation fan is arranged on one side of the heat radiator.
17. The utility model provides a fuel cell, includes fuel cell stack, heat transfer device includes storage water tank, radiating unit, cooling unit, fuel cell's drainage unit is connected to the storage water tank, the storage water tank is used for receiving and storing produced water in the fuel cell stack course of working, radiating unit with cooling unit is used for the cooperation to realize right fuel cell stack or air conditioning system carry out the heat transfer cooling and handle, its characterized in that, heat transfer device still includes:
the latent heat of vaporization device is connected with a water outlet of the water storage tank and is used for vaporizing the stored water in the water storage tank during work and cooling by utilizing the latent heat of vaporization of the stored water.
18. A fuel cell according to claim 17, wherein the heat exchanging device comprises a heat exchanging device according to any one of claims 2 to 16.
19. The utility model provides a method for carrying out the heat transfer to fuel cell through heat transfer device, heat transfer device includes storage water tank, radiating element, cooling unit, the drainage unit of fuel cell is connected to the storage water tank, the storage water tank is used for receiving and storing produced water in the fuel cell working process, radiating element with the cooling unit is used for the cooperation to realize carrying out the heat transfer cooling to fuel cell and handles, its characterized in that, heat transfer device still includes: a latent heat of vaporization device, at least one outlet check valve being disposed between said storage tank and said latent heat of vaporization device, the method comprising:
monitoring whether the fuel cell meets a latent heat of vaporization condition in real time during the working process of the fuel cell;
if the temperature of the water storage tank is lower than the preset temperature, controlling to open at least one outlet one-way valve so that the latent heat of vaporization device vaporizes the water stored in the water storage tank and utilizes the latent heat of vaporization of the water stored to cool.
20. The method of claim 19, wherein the heat exchange device further comprises a collection unit;
the real-time monitoring whether the fuel cell meets the latent heat of vaporization condition in the working process of the fuel cell comprises the following steps: and acquiring the working parameter information of the fuel cell through the acquisition unit, and monitoring whether the working parameter information meets the latent heat of vaporization condition in real time in the working process of the fuel cell.
21. The method as claimed in claim 19 or 20, wherein the water storage tank comprises a plurality of water storage compartments, the outlet check valve is respectively arranged between each water storage compartment of the plurality of water storage compartments and the latent heat of vaporization device, a water level sensing unit is arranged in at least one of the water storage compartments, and if the outlet check valve is opened, the method comprises the following steps:
if so, determining a target water storage room from the at least one water storage room according to the water level information detected by the water level sensing unit, wherein the water level information of the target water storage room is equal to or greater than a first water level threshold value;
and controlling to open an outlet one-way valve of the target water storage room.
22. The method of claim 21, further comprising:
and if the working parameter information of the fuel cell does not meet the latent heat of vaporization condition in the process that the outlet one-way valve of the target water storage room is in an open state, controlling to close the outlet one-way valve of the target water storage room.
23. The method of claim 21, further comprising:
and if the water level information of the target water storage room is smaller than a second water level threshold value in the process that the working parameter information of the fuel cell meets the latent heat of vaporization condition, controlling to close an outlet one-way valve of the target water storage room and controlling to open an outlet one-way valve of the next water storage room.
24. The method of any one of claims 21 to 23, wherein at least one inlet check valve is provided between the plurality of water storage compartments and a water discharge unit of the fuel cell, the method further comprising:
and controlling the opening and closing state of an inlet one-way valve corresponding to the water storage room according to the water level information of the water storage room.
25. The method according to any one of claims 19 to 24, wherein the heat exchanging device further comprises a pre-cooling device, a driving unit connected to the pre-cooling device, the method further comprising:
and if the latent heat of vaporization condition is met, controlling the driving unit to drive the pre-cooling device to unfold, otherwise, controlling the driving unit to drive the pre-cooling device to fold.
CN202110627087.5A 2021-01-26 2021-06-04 Heat exchange device, fuel cell and heat exchange method Pending CN114792822A (en)

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CN116364969B (en) * 2023-05-12 2023-08-01 北京重理能源科技有限公司 High-power fuel cell phase-change heat dissipation system, method, vehicle and storage medium

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