CN106328971B - Cooling system of hydrogen energy tramcar fuel cell - Google Patents
Cooling system of hydrogen energy tramcar fuel cell Download PDFInfo
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- CN106328971B CN106328971B CN201610780587.1A CN201610780587A CN106328971B CN 106328971 B CN106328971 B CN 106328971B CN 201610780587 A CN201610780587 A CN 201610780587A CN 106328971 B CN106328971 B CN 106328971B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04037—Electrical heating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The invention discloses a cooling system of a hydrogen energy tramcar fuel cell, which comprises a hydrogen fuel cell, a circulating device, a cooling device and an electric heating pipe, wherein the hydrogen fuel cell, the circulating device and the cooling device are sequentially connected through pipelines and form a cooling circulation loop; one end of the electric heating pipe is communicated with the circulating device through a pipeline, and the other end of the electric heating pipe is communicated with the hydrogen fuel cell through a pipeline to form a heating circulating loop. The invention can accurately and relatively stably control the temperature of the cooling liquid entering the hydrogen fuel cell within the optimal reaction temperature range, so that the hydrogen fuel cell is in a proper reaction temperature environment, and the reaction efficiency of the hydrogen fuel cell is improved; the invention has simple structure, obvious effect and energy saving.
Description
Technical Field
The invention relates to the field of tramcars, in particular to a cooling system of a fuel cell of a hydrogen energy tramcar.
Background
The fuel cell is a power generation device which directly converts chemical energy existing in fuel and oxidant into electric energy, is a novel power generation device with high efficiency and environmental protection, and is widely applied in various fields. The hydrogen fuel cell is a cell which uses hydrogen as a chemical element and is manufactured to store energy, and the hydrogen fuel cell only generates water in the reaction, so the hydrogen fuel cell is an environment-friendly energy source.
Because the space under the low-floor tramcar is limited, most equipment is installed on a roof platform, and the low-floor tramcar taking hydrogen energy as power needs to additionally add hydrogen power system equipment such as a hydrogen fuel cell, a cooling device, a hydrogen storage device, a DC-DC (direct current-direct current), a traction storage battery and the like on the roof, and meanwhile, the hydrogen fuel cell has high rated power and high heat dissipation requirement, so that the cooling system needs to meet the high-power heat dissipation requirement of the hydrogen fuel cell in the limited space of the roof; the reaction exchange membrane of the hydrogen fuel cell has the highest reaction efficiency at about 60 ℃, and when the ambient temperature is too low or the hydrogen fuel cell is just started, the temperature of the cooling liquid in the cooling system is too low, the hydrogen fuel cell cannot be at the optimal reaction ambient temperature, so that the working efficiency of the hydrogen energy cell is low; meanwhile, the service life of the reaction exchange membrane of the hydrogen fuel cell is greatly influenced due to the overhigh ion concentration of the cooling liquid of the cooling system of the hydrogen fuel cell, so that a reasonable cooling system is needed to ensure that the hydrogen energy cell works in a reaction environment with constant temperature.
The invention is provided in view of the above.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a cooling system of a hydrogen energy tramcar fuel cell, which can accurately and relatively stably control the temperature of cooling liquid entering the hydrogen fuel cell to be within the optimal reaction temperature range, so that the hydrogen fuel cell is in a proper reaction temperature environment, and the reaction efficiency of the hydrogen fuel cell is improved; the invention has simple structure, obvious effect and energy saving.
In order to realize the purpose, the invention adopts the following technical scheme: a cooling system of a hydrogen energy tramcar fuel cell comprises a hydrogen fuel cell, a circulating device, a cooling device and an electric heating pipe, wherein the hydrogen fuel cell, the circulating device and the cooling device are sequentially connected through a pipeline to form a cooling circulating loop;
one end of the electric heating pipe is communicated with the circulating device through a pipeline, and the other end of the electric heating pipe is communicated with the hydrogen fuel cell through a pipeline to form a heating circulating loop.
Further, the cooling system also comprises a controller which is respectively connected with the circulating device and the cooling device;
preferably, the circulating device comprises a circulating water pump and a water pump controller connected with the circulating water pump, the cooling device comprises a cooling fan and a cooling fan controller connected with the cooling fan, and the water pump controller and the cooling fan controller are respectively connected with the controller.
Further, the cooling system also comprises a water replenishing tank which is communicated with the cooling circulation loop through a pipeline;
preferably, one end of the pipeline is connected with the water replenishing tank, and the other end of the pipeline is communicated with a pipeline between the circulating water pump and the hydrogen fuel cell.
Further, the cooling system also comprises at least two temperature sensors, and the temperature sensors are connected with the controller;
preferably, the cooling system further includes a first temperature sensor provided between the hydrogen fuel cell and the cooling device, and a second temperature sensor provided between the circulating water pump and the cooling device.
Further, the cooling system also comprises at least two pressure sensors, and the pressure sensors are connected with the controller;
preferably, the cooling system further includes a first pressure sensor provided between the hydrogen fuel cell and the cooling device, and a second pressure sensor provided between the circulating water pump and the cooling device.
Further, the cooling system also comprises a three-way valve which is respectively connected with the electric heating pipe, the hydrogen fuel cell and the cooling device;
preferably, the three-way valve is connected to a controller that controls the three-way valve to switch the cooling circulation circuit and the heating circulation circuit.
Furthermore, the cooling system also comprises an ion concentration detection device, and the ion concentration detection device is arranged on the cooling circulation loop/the heating circulation loop and is connected with the controller;
preferably, the ion concentration detection means is provided between the cooling means and the hydrogen fuel cell.
Furthermore, the cooling system also comprises a deionization device, one end of the deionization device is communicated with the cooling circulation loop/the heating circulation loop through a pipeline, and the other end of the deionization device is communicated with the water replenishing tank through a pipeline.
Further, the deionization device is a deionization filter.
Furthermore, an air outlet is formed in the water replenishing tank, the position of the air outlet is higher than the position corresponding to the maximum water level of the water replenishing tank, and the air outlet is communicated with the cooling circulation loop through an exhaust pipe;
preferably, one end of the exhaust pipe is communicated with the exhaust port, and the other end of the exhaust pipe is communicated with the cooling device;
more preferably, the exhaust pipe is provided with an exhaust valve.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the cooling system of the hydrogen energy tramcar fuel cell realizes that the hydrogen fuel cell is in a relatively stable reaction environment, and the cooling system utilizes the fact that the hydrogen fuel cell, the circulating device and the cooling device are sequentially connected through a pipeline to form a cooling circulating loop; the cooling system of the hydrogen energy tramcar fuel cell also comprises an electric heating pipe, the electric heating pipe is communicated with the circulating device through a pipeline at one end, and the other end of the electric heating pipe is communicated with the hydrogen fuel cell through a pipeline to form a heating circulating loop; and the cooling circulation loop and the heating circulation loop are switched according to the temperature of the cooling liquid in the pipeline, so that the hydrogen fuel cell is in a relatively stable reaction environment, and the reaction efficiency of the hydrogen fuel cell is improved.
2. The cooling system of the hydrogen energy tramcar fuel cell provided by the invention has the advantages that the deionization circulating loop is arranged outside the circulating loop, the coolant subjected to deionization treatment by the deionization device flows into the water replenishing tank and flows back to the circulating loop through the water replenishing loop, the ion concentration of the coolant in the circulating loop can be effectively controlled, and the problem that the service life of a fuel cell reaction exchange membrane is influenced due to overhigh ion concentration of the coolant in the cooling system is solved.
3. The cooling system of the hydrogen energy tramcar fuel cell can also utilize the exhaust pipe to communicate the cooling device with the water replenishing tank and exhaust air in the circulating loop, so that the cooling effect of the cooling system is ensured, and the air pressure in the circulating loop is reduced by exhausting redundant gas in the circulating loop, so that the running safety of the cooling system is ensured.
Drawings
FIG. 1 is a block diagram of a cooling system for a hydrogen-powered tram fuel cell in accordance with an embodiment of the present invention;
wherein, 1, hydrogen fuel cell; 2. a water circulating pump; 3. a water pump controller; 4. a cooling fan; 5. a cooling fan controller; 6. a water replenishing tank; 7. a first temperature sensor; 8. a first pressure sensor; 9. a second temperature sensor; 10. a second pressure sensor; 11. an exhaust valve; 12. an electric heating tube; 13. a three-way valve; 14. an ion concentration detection device; 15. a deionization unit; 16. and a water feeding/discharging valve.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the invention provides a cooling system of a hydrogen energy tramcar fuel cell, which comprises a cooling circulation loop formed by connecting a hydrogen fuel cell 1, a circulation device and a cooling device in sequence through pipelines;
the cooling system further comprises an electric heating pipe 12, wherein the electric heating pipe 12 is communicated with the circulating device through a pipeline at one end, and the other end of the electric heating pipe is communicated with the hydrogen fuel cell 1 through a pipeline to form a heating circulating loop.
Specifically, in the embodiment, the hydrogen fuel cell 1 generates electric energy, and hydrogen and oxygen in the air react under the action of the catalyst to generate electricity and water, so that an environment-friendly power energy source is provided for the tramcar. The cooling system utilizes the cooling circulation loop to cool the hydrogen fuel cell 1, so that heat generated in the normal working process of the hydrogen fuel cell 1 can be dissipated instantly, the cooling liquid in the cooling circulation loop can be controlled to enter the hydrogen fuel cell 1 at a constant temperature, and the reaction efficiency of the hydrogen fuel cell 1 is improved. In the cooling system, the high-temperature coolant discharged from the hydrogen fuel cell 1 is pumped to the cooling device by the circulating device for cooling, and then the cooled coolant is pumped to the hydrogen fuel cell 1 and cooled to form a cooling circulation loop. In addition, the cooling system of the embodiment has high heat dissipation efficiency and strong cooling capacity, and the maximum heat dissipation power can reach 170 KW.
Meanwhile, the cooling circulation loop in the cooling system of the embodiment is as follows: the hydrogen fuel cell is communicated with a circulating water pump 2 through a pipeline D, the circulating water pump 2 is communicated with one end of the cooling device through a pipeline B, C, and the other end of the cooling device is communicated with the hydrogen fuel cell through a pipeline A, E to form a cooling circulation loop. The cooling liquid with the temperature higher than the set temperature value flows to the hydrogen fuel cell after being cooled to the set temperature value through the cooling circulation loop, the heat generated in the normal working process of the hydrogen fuel cell is immediately dissipated, and the cooling liquid flowing into the hydrogen fuel cell is controlled at the set temperature value, so that the normal work of the hydrogen fuel cell is ensured, the reaction efficiency of the hydrogen fuel cell is improved, and the service life of the hydrogen fuel cell is prolonged.
The heating cycle circuit is as follows: the hydrogen fuel cell is communicated with the circulating water pump 2 through a pipeline D, the pipeline B is communicated with the pipeline E through a pipeline F, the electric heating pipe 12 is arranged on the pipeline F, the cooling liquid flowing in through one end of the pipeline F is heated through the electric heating pipe 12, and the heated cooling liquid flows back to the hydrogen fuel cell from the other end of the pipeline F and forms a heating circulating loop. In the embodiment, the cooling liquid with the temperature lower than the set temperature value is heated to the set temperature value through the heating circulation loop and then flows to the hydrogen fuel cell; the heating circulation loop is mainly used for heating the cooling liquid by utilizing the heating circulation loop so as to improve the reaction efficiency of the hydrogen fuel cell because the temperature of the cooling liquid is too low when the hydrogen fuel powered tramcar is just started or the ambient temperature is too low, so that the hydrogen fuel cell cannot normally work.
Further, the cooling system also comprises a controller which is respectively connected with the circulating device and the cooling device;
preferably, the circulating device comprises a circulating water pump 2 and a water pump controller 3 which is connected with the circulating water pump 2 and controls the circulating water pump, the cooling device comprises a cooling fan 4 and a cooling fan controller 5 which is connected with the cooling fan 4 and controls the cooling fan, and the water pump controller 3 and the cooling fan controller 5 are respectively connected with the controllers.
Specifically, the controller acquires information of the hydrogen fuel cell 1, the temperature sensor and the pressure sensor, and adjusts the circulating device, the cooling device and the electric heating tube 12 in the cooling system according to the information, so that the temperature of the cooling liquid in the cooling system entering the hydrogen fuel cell 1 is controlled within the optimal reaction temperature range. The controller realizes accurate control of the flow speed or flow of the circulating water pump 2 by signal interaction between the water pump controllers 3 connected with the circulating water pump 2; the controller is also connected with the cooling fan 4 and used for signal interaction between the cooling fan controllers 5, so that the frequency of the cooling fan 4 is accurately controlled. Thereby realizing the accurate control of the cooling system.
For example, when the temperature of the coolant is high, the flow rate or the flow rate of the circulating water pump 2 is reduced, and the frequency of the cooling fan 4 is increased; or simultaneously improving the flow speed or flow of the circulating water pump 2 and the frequency of the cooling fan 4, ensuring that the temperature of the cooling liquid is in the optimal reaction temperature range after cooling, further ensuring the working efficiency of the hydrogen fuel cell and prolonging the service life of the hydrogen fuel cell.
Further, the cooling system also comprises a water replenishing tank 6, and the water replenishing tank 6 is communicated with the cooling circulation loop through a pipeline;
preferably, one end of the pipeline is connected with the water replenishing tank 6, and the other end of the pipeline is communicated with a pipeline between the circulating water pump 2 and the hydrogen fuel cell.
Specifically, the water replenishing tank 6 is communicated with a pipeline D between the circulating water pump 2 and the hydrogen fuel cell through a pipeline G, and the water replenishing tank 6 is arranged above the cooling circulation loop, so that water in the water replenishing tank 6 can flow into the cooling circulation loop through gravity or the suction force of the water pump; alternatively, the water in the makeup tank 6 flows from the makeup tank 6 into the cooling circulation circuit by the circulation water pump 2.
And, the diameter of the pipeline G is smaller than that of the pipeline D.
Meanwhile, a water replenishing valve is further arranged on the pipeline G, and the on-off of the pipeline D is controlled through the water replenishing valve.
Or the water replenishing valve is connected with the controller, and the controller controls the opening/closing of the water replenishing valve.
Further, the cooling system further includes at least two temperature sensors, and is disposed between the hydrogen fuel cell and the cooling device, and between the circulating water pump 2 and the cooling device, respectively;
preferably, the temperature sensor is connected with the controller.
Specifically, the cooling system comprises a first temperature sensor 7 arranged on the pipeline A and a second temperature sensor 9 arranged on the pipeline B, and the first temperature sensor 7 and the second temperature sensor 9 are respectively connected with the controller.
Further, the cooling system further comprises a three-way valve 13 connected to the controller, and the three-way valve 13 is connected to the electric heating pipe 12, the hydrogen fuel cell and the cooling device, respectively, and is used for switching the cooling circulation loop and the heating circulation loop.
Specifically, the cooling system comprises a first temperature sensor 7 arranged on the liquid inlet side of the hydrogen fuel cell and a second temperature sensor 9 arranged on the liquid outlet side of the hydrogen fuel cell, the first temperature sensor 7 and the second temperature sensor 9 are respectively connected with a controller, and the controller controls the flow speed or flow of the circulating water pump 2 and the frequency of the cooling fan 4 according to the temperature difference between the first temperature sensor 7 and the second temperature sensor 9. The temperature difference between the first temperature sensor 7 and the second temperature sensor 9 corresponds to the working parameters of the circulating water pump 2 and the cooling fan 4, and the corresponding relation is stored in the controller.
Meanwhile, in the cooling system of the present embodiment, the controller acquires temperature feedback signals of the first temperature sensor 7 and the second temperature sensor 9, and further controls the open/close state of the three-way valve 13; for example, the second temperature sensor 9 obtains the temperature value of the cooling liquid in the pipeline a at this time, and when the temperature value is smaller than the set temperature value at this time, the three-way valve 13 is controlled to conduct the pipeline F and the pipeline E, and the electric heating pipe 12 is started at the same time, so that the cooling liquid circulates in the heating circulation loop; when the temperature value is higher than the set temperature value, the three-way valve 13 is controlled to conduct the pipeline A and the pipeline E, and the cooling device is started at the same time, so that the cooling liquid circulates in the cooling circulation loop. The cooling circulation loop and the heating circulation loop are switched with each other, the cooling system can accurately and stably control the temperature of the cooling liquid flowing into the hydrogen fuel cell to be at the set temperature, the output efficiency of the hydrogen fuel cell is improved, and energy conservation is realized.
Preferably, the set temperature in this embodiment is 60 ℃.
Or the pipeline A and the pipeline F are respectively provided with a first valve and a second valve; the first valve and the second valve are respectively connected with the controller and are used for switching the cooling circulation loop and the heating circulation loop.
Furthermore, an air outlet is formed in the water replenishing tank 6, the position of the air outlet is higher than the position corresponding to the maximum water level of the water replenishing tank 6, and the air outlet is communicated with the cooling circulation loop through an exhaust pipe;
preferably, one end of the exhaust pipe is communicated with the exhaust port, and the other end of the exhaust pipe is communicated with the cooling device;
more preferably, the exhaust pipe is provided with an exhaust valve 11.
Also, the exhaust pipe diameter is smaller than the pipe diameter of the circulation circuit, and therefore, the exhaust pipe diameter is smaller than the diameter of the pipe A, B, C, D, E, F.
Specifically, in the embodiment, the exhaust valve needs to be opened, and the exhaust pipe is used for exhausting redundant gas in the cooling circulation loop, so that the cooling effect of the cooling system is ensured, and the gas pressure in the cooling circulation loop is reduced by exhausting the redundant gas in the cooling circulation loop, so that the running safety of the cooling system is ensured. Meanwhile, the cooling device also comprises a radiator for fully contacting the cooling liquid with the cooling device to dissipate heat; the exhaust pipe is communicated with the radiator, and redundant gas in the cooling circulation loop is fully exhausted.
Alternatively, the exhaust valve 11 of the present embodiment is connected to a controller, and the opening/closing of the exhaust valve 11 is controlled by the controller.
Still alternatively, the control controls the opening/closing of the exhaust valve 11 based on the pressure value of the first pressure sensor 8, or the pressure value of the second pressure sensor 10, or the pressure difference between the first pressure sensor 8 and the second pressure sensor 10.
Further, the cooling system also comprises at least two pressure sensors which are connected with the controller
Preferably, the cooling system further comprises a first pressure sensor 8 arranged on the liquid inlet side of the hydrogen fuel cell, and a second pressure sensor 10 arranged on the liquid outlet side of the hydrogen fuel cell, wherein the circulating water pump 2 is arranged.
Specifically, the cooling system includes a first pressure sensor 8 disposed between the hydrogen fuel cell and the cooling device, and a second pressure sensor 10 disposed between the circulating water pump 2 and the cooling device, and the first pressure sensor 8 and the second pressure sensor are respectively connected to the controller, and the first pressure sensor 8 is disposed on the pipeline a, the second pressure sensor 10 is disposed on the pipeline B, and the controller controls the operating parameters of the circulating water pump 2, the cooling fan 4, and the electric heating pipe 12 according to the pressure difference between the first pressure sensor 8 and the second pressure sensor 10, specifically, the operating parameter of the circulating water pump 2 is mainly flow or flow velocity, the operating parameter of the cooling fan 12 is mainly frequency, and the operating parameter of the electric heating pipe 12 is mainly heating power. The pressure difference between the first pressure sensor 8 and the second pressure sensor 10 corresponds to the working parameters of the circulating water pump 2, the cooling fan 4 or the electric heating pipe 12, and the corresponding relation is stored in the controller.
In addition, the cooling system in the embodiment discharges redundant gas in the cooling circulation loop/the heating circulation loop through the exhaust pipe, so that the cooling effect of the cooling system is ensured, and the gas pressure in the circulation loop is reduced by discharging the redundant gas in the circulation loop, so that the running safety of the cooling system is ensured.
Further, the cooling device also comprises a radiator for radiating heat by the cooling liquid fully contacting with the cooling device; the exhaust pipe is communicated with the radiator, and redundant gas in the cooling circulation loop is fully exhausted.
Further, the cooling system further comprises an ion concentration detection device 14, wherein the ion concentration detection device 14 is arranged on the cooling circulation loop/the heating circulation loop and is connected with the controller;
preferably, the ion concentration detection device 14 is provided between the cooling device and the hydrogen fuel cell.
Further, the cooling system further comprises a deionization device 15 and a water replenishing tank 6 communicated with the cooling circulation loop/the heating circulation loop through a pipeline, wherein one end of the deionization device 15 is communicated with the cooling circulation loop/the heating circulation loop through a pipeline, and the other end of the deionization device is communicated with the water replenishing tank 6 through a pipeline;
preferably, the deionization unit 15 is a deionization filter.
Specifically, the deionization device 15 is communicated with a pipeline B through a pipeline H, the other end of the deionization device is communicated with the water replenishing tank 6 through a pipeline H, and a communication port of the pipeline H and the water replenishing tank 6 is arranged at the top of the water replenishing tank 6; and, the coolant that is deionized by the deionization apparatus 15 flows into the water replenishing tank 6 and is communicated with the pipeline D through the pipeline G, so that a deionization circulation loop is realized, and the pipeline H has a smaller diameter than that of the circulation loop, specifically, the diameter of the pipeline H is smaller than that of the pipeline A, B, C, D, E, F, so that the resistance of the coolant passing through the deionization apparatus 15 is reduced. The deionization loop in the embodiment can effectively control the ion concentration of the cooling liquid in the circulating loop, and the problem that the service life of the reaction exchange membrane of the fuel cell is influenced by overhigh ion concentration of the cooling liquid of the cooling system is solved.
In addition, in the embodiment, the ion concentration of the cooling liquid in the circulation loop is monitored and fed back in real time through the ion concentration detection device 14; or, in this embodiment, the ion concentration may be monitored and controlled in real time, and when the ion concentration is greater than the set value, the controller prompts replacement of the filter element of the deionization apparatus 15, and effectively reduces the ion concentration in the coolant.
Still alternatively, a valve is further provided on the pipeline H, and the valve is closed between the ion device 15 and the circulation loop when the filter element of the deionization device 15 is replaced. The valve can also be connected with a controller, and the controller controls the on-off of the pipeline H.
Further, in the present embodiment, the pipe a is further provided with a water adding/discharging port, and is communicated with the water adding/discharging port through a pipe, and the water adding/discharging valve 16 is provided on the pipe, so that the coolant in the cooling circulation circuit/heating circulation circuit can be effectively added/discharged.
In summary, the cooling system of the present embodiment has the following advantages:
1. in the embodiment, the cooling system of the hydrogen energy tramcar fuel cell realizes that the hydrogen fuel cell is in a constant and stable reaction environment, and in the embodiment, the hydrogen fuel cell, the circulating device and the cooling device are sequentially connected through a pipeline to form a cooling circulation loop; the cooling system also comprises an electric heating pipe 12, wherein the electric heating pipe 12 is communicated with the circulating device through a pipeline at one end, and the other end of the electric heating pipe is communicated with the hydrogen fuel cell through a pipeline to form a heating circulating loop; and the cooling circulation loop and the heating circulation loop are switched according to the temperature of the cooling liquid in the pipeline, so that the hydrogen fuel cell is in a relatively stable reaction environment, and the reaction efficiency of the hydrogen fuel cell is improved.
2. The cooling system of the hydrogen energy tramcar fuel cell in the embodiment utilizes the deionized circulation loop arranged outside the circulation loop, mainly flows the coolant subjected to deionized treatment by the deionized device 15 into the water replenishing tank 6, and flows back to the circulation loop through the water replenishing loop, so that the ion concentration of the coolant in the circulation loop can be effectively controlled, and the problem that the service life of a reaction exchange membrane of the fuel cell is influenced due to overhigh ion concentration of the coolant in the cooling system is solved.
3. The cooling system of the hydrogen energy tramcar fuel cell can also utilize the exhaust pipe to communicate the cooling device with the water replenishing tank 6 and exhaust air in the circulating loop, so that the cooling effect of the cooling system is ensured, and the air pressure in the circulating loop is reduced by exhausting redundant gas in the circulating loop, so that the running safety of the cooling system is ensured.
The embodiments in the above embodiments can be further combined or replaced, and the embodiments are only used for describing the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various changes and modifications made to the technical solution of the present invention by those skilled in the art without departing from the design idea of the present invention belong to the protection scope of the present invention.
Claims (3)
1. A cooling system of a hydrogen energy tramcar fuel cell is characterized in that: comprises a hydrogen fuel cell, a circulating device,
The hydrogen fuel cell, the circulating device and the cooling device are sequentially connected through pipelines and form cold
A cooling circulation loop; one end of the electric heating pipe is communicated with the circulating device through a pipeline, and the other end of the electric heating pipe is communicated with the hydrogen fuel cell through a pipeline to form a heating circulating loop;
the cooling system also comprises a first pressure sensor arranged on the liquid inlet side of the hydrogen fuel cell and a second pressure sensor arranged on the liquid outlet side of the hydrogen fuel cell
A second pressure sensor on the liquid side, wherein the first pressure sensor and the second pressure sensor are respectively connected with a controller, and the controller
The circulating device, the cooling device and the electric heating device are controlled by the controller according to the pressure difference value of the first pressure sensor and the second pressure sensor
Setting working parameters;
the cooling system also comprises a controller which is respectively connected with the circulating device and the cooling device;
the circulating device comprises a circulating water pump and a water pump controller connected with the circulating water pump, the cooling device comprises a cooling fan and a cooling fan controller connected with the cooling fan, and the water pump controller and the cooling fan controller are respectively connected with the controller;
the cooling system also comprises a water replenishing tank which is communicated with the cooling circulation loop through a pipeline;
the cooling system also comprises at least two temperature sensors, and the temperature sensors are connected with the controller;
the cooling system also comprises a first temperature sensor arranged between the hydrogen fuel cell and the cooling device, and a second temperature sensor arranged between the circulating water pump and the cooling device;
the cooling system also comprises a three-way valve which is respectively connected with the electric heating pipe, the hydrogen fuel cell and the cooling device;
the three-way valve is connected with a controller, and the controller controls the three-way valve to switch the cooling circulation loop and the heating circulation loop;
the cooling system also comprises a deionization device, one end of the deionization device is communicated with the cooling circulation loop or the heating circulation loop through a pipeline, and the other end of the deionization device is communicated with the water replenishing tank through a pipeline;
the cooling system also comprises an ion concentration detection device, and the ion concentration detection device is arranged on the cooling circulation loop or the heating circulation loop and is connected with the controller; the ion concentration detection device is arranged between the cooling device and the hydrogen fuel cell; when the ion concentration is greater than a set value, the controller prompts the filter element of the deionization device to be replaced;
the water replenishing tank is provided with an air outlet, the position of the air outlet is higher than the position corresponding to the maximum water level of the water replenishing tank, and the air outlet is communicated with the cooling circulation loop through an exhaust pipe;
one end of the exhaust pipe is communicated with the exhaust port, and the other end of the exhaust pipe is communicated with the cooling device;
an exhaust valve is arranged on the exhaust pipe;
the diameter of the exhaust pipe is smaller than the diameter of the pipeline of the circulation loop.
2. The cooling system for a hydrogen-powered tram fuel cell according to claim 1, characterized in that: one end of the pipeline is connected with the water replenishing tank, and the other end of the pipeline is communicated with the pipeline between the circulating water pump and the hydrogen fuel cell.
3. The cooling system for a hydrogen-powered streetcar fuel cell according to claim 1 or 2, characterized in that: the deionization device is a deionization filter.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780587.1A CN106328971B (en) | 2016-08-31 | 2016-08-31 | Cooling system of hydrogen energy tramcar fuel cell |
| DE112017003360.8T DE112017003360T5 (en) | 2016-08-31 | 2017-08-29 | Cooling system for a hydrogen fuel cell of a tram |
| CA3033231A CA3033231C (en) | 2016-08-31 | 2017-08-29 | Cooling system of fuel cell of hydrogen energy tram |
| PCT/CN2017/099407 WO2018041085A1 (en) | 2016-08-31 | 2017-08-29 | Cooling system for hydrogen energy fuel cell of tram |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610780587.1A CN106328971B (en) | 2016-08-31 | 2016-08-31 | Cooling system of hydrogen energy tramcar fuel cell |
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| CN106328971A CN106328971A (en) | 2017-01-11 |
| CN106328971B true CN106328971B (en) | 2020-01-10 |
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| CN201610780587.1A Active CN106328971B (en) | 2016-08-31 | 2016-08-31 | Cooling system of hydrogen energy tramcar fuel cell |
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|---|---|
| CN (1) | CN106328971B (en) |
| CA (1) | CA3033231C (en) |
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| CN106328971B (en) * | 2016-08-31 | 2020-01-10 | 中车青岛四方机车车辆股份有限公司 | Cooling system of hydrogen energy tramcar fuel cell |
| CN107492674B (en) * | 2017-08-11 | 2024-03-12 | 中通客车股份有限公司 | Thermal management system, method and control pipeline for hydrogen fuel cell |
| CN107739113A (en) * | 2017-11-09 | 2018-02-27 | 北京亿华通科技股份有限公司 | Portable deionizer and the fuel cell system and cleaning systems for including it |
| CN108172864A (en) * | 2018-01-05 | 2018-06-15 | 湘潭大学 | A kind of fuel cell waste heat heat-storing device based on phase-change material |
| CN108054411A (en) * | 2018-01-17 | 2018-05-18 | 中国重汽集团济南动力有限公司 | A kind of commercial car fuel cell heat management system |
| CN110492138B (en) * | 2018-05-14 | 2024-06-21 | 宇通客车股份有限公司 | Evacuation and fluid replacement control method and system suitable for fuel cell cooling system |
| CN110504462A (en) * | 2018-05-16 | 2019-11-26 | 嘉兴市兆业新能源技术有限公司 | A kind of fuel cell unit with draining radiator |
| CN109037727A (en) * | 2018-07-16 | 2018-12-18 | 天津市交通科学技术研究所 | Hydrogen energy source fuel cell for new-energy automobile |
| CN110867595A (en) * | 2018-08-28 | 2020-03-06 | 北京蓝吉新能源科技有限公司 | Fuel cell system and fuel cell automobile power system |
| CN109244505B (en) * | 2018-09-25 | 2023-08-11 | 吉林大学 | Vehicle fuel cell thermal management system and control method thereof |
| CN109755609B (en) * | 2019-02-21 | 2024-06-25 | 武汉喜玛拉雅光电科技股份有限公司 | Water heat management system of fuel cell |
| CN109974320B (en) * | 2019-04-22 | 2023-10-03 | 苏州奥德高端装备股份有限公司 | High-temperature deionized water cooling device |
| CN110380082B (en) * | 2019-07-29 | 2021-06-11 | 浙江吉利新能源商用车集团有限公司 | Fuel cell cooling system and degassing method |
| CN112993321B (en) * | 2019-12-16 | 2022-08-19 | 中车时代电动汽车股份有限公司 | Cooling liquid circulating system for fuel cell |
| CN111186290A (en) * | 2020-03-03 | 2020-05-22 | 三一专用汽车有限责任公司 | Battery cooling system, electric vehicle and control method |
| CN113451611A (en) * | 2020-03-27 | 2021-09-28 | 未势能源科技有限公司 | Cooling system of fuel cell, fuel cell assembly and vehicle |
| CN111952628A (en) * | 2020-05-25 | 2020-11-17 | 武汉格罗夫氢能汽车有限公司 | Thermal management system for hydrogen energy automobile fuel cell |
| CN111834646B (en) * | 2020-06-05 | 2021-11-12 | 湖北德普电气股份有限公司 | Cooling system of hydrogen fuel cell stack |
| CN113140759B (en) * | 2021-04-15 | 2022-10-14 | 一汽解放汽车有限公司 | Hydrogen fuel cell cold start system and control method thereof |
| CN113461243A (en) * | 2021-07-08 | 2021-10-01 | 广州高澜节能技术股份有限公司 | Cooling liquid recycling system for wind power |
| CN113839065B (en) * | 2021-09-18 | 2023-05-09 | 电子科技大学 | Fuel cell cooling water loop thermal compensation temperature control system and control method |
| CN114188564B (en) * | 2021-12-09 | 2024-06-07 | 中国人民解放军32181部队 | Heat extraction system of fuel cell |
| CN114824357B (en) * | 2022-03-31 | 2024-05-07 | 中国第一汽车股份有限公司 | Cooling system, test method and evaluation method for power assembly of hydrogen fuel cell electric vehicle |
| CN114744239B (en) * | 2022-04-08 | 2024-03-12 | 大连海事大学 | Marine fuel cell heating and cooling system |
| CN114864997B (en) * | 2022-05-17 | 2024-03-19 | 太原理工大学 | Cooling system of fuel cell and control method thereof |
| CN115000458B (en) * | 2022-07-18 | 2022-11-11 | 深圳市世椿智能装备股份有限公司 | Hydrogen fuel cell power generation device and hydrogen fuel cell heat exchanger |
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2016
- 2016-08-31 CN CN201610780587.1A patent/CN106328971B/en active Active
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2017
- 2017-08-29 CA CA3033231A patent/CA3033231C/en active Active
- 2017-08-29 DE DE112017003360.8T patent/DE112017003360T5/en active Pending
- 2017-08-29 WO PCT/CN2017/099407 patent/WO2018041085A1/en active Application Filing
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| CN201360026Y (en) * | 2008-12-22 | 2009-12-09 | 新源动力股份有限公司 | Cooling system for prolonging life cycle of cooling water of fuel cell |
| CN102496730A (en) * | 2011-11-24 | 2012-06-13 | 新源动力股份有限公司 | Thermal management system for low temperature starting of fuel cell power generation system and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018041085A1 (en) | 2018-03-08 |
| DE112017003360T5 (en) | 2019-03-21 |
| CA3033231A1 (en) | 2018-03-08 |
| CA3033231C (en) | 2021-11-09 |
| CN106328971A (en) | 2017-01-11 |
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