CN114068997B - High-efficiency energy-saving fuel cell stack test system - Google Patents
High-efficiency energy-saving fuel cell stack test system Download PDFInfo
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- CN114068997B CN114068997B CN202111209528.6A CN202111209528A CN114068997B CN 114068997 B CN114068997 B CN 114068997B CN 202111209528 A CN202111209528 A CN 202111209528A CN 114068997 B CN114068997 B CN 114068997B
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- 239000000446 fuel Substances 0.000 title claims abstract description 50
- 238000012360 testing method Methods 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 239000001257 hydrogen Substances 0.000 claims abstract description 95
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 95
- 239000007789 gas Substances 0.000 claims abstract description 85
- 238000000926 separation method Methods 0.000 claims abstract description 43
- 239000012528 membrane Substances 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000008367 deionised water Substances 0.000 claims description 24
- 229910021641 deionized water Inorganic materials 0.000 claims description 24
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000001502 supplementing effect Effects 0.000 claims description 5
- 238000002203 pretreatment Methods 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 16
- 230000001276 controlling effect Effects 0.000 description 15
- 238000005265 energy consumption Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000003020 moisturizing effect Effects 0.000 description 4
- 238000007781 pre-processing Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
-
- 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
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
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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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04126—Humidifying
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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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04126—Humidifying
- H01M8/04141—Humidifying by water containing exhaust gases
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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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04126—Humidifying
- H01M8/04149—Humidifying by diffusion, e.g. making use of membranes
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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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
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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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes 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
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04328—Temperature; Ambient temperature of anode reactants at the inlet or inside the fuel cell
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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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes 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
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04335—Temperature; Ambient temperature of cathode reactants at the inlet or inside the fuel cell
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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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes 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
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04358—Temperature; Ambient temperature of the coolant
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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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04701—Temperature
- H01M8/04708—Temperature of fuel cell 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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04701—Temperature
- H01M8/04723—Temperature of the coolant
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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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04753—Pressure; Flow of fuel cell 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
- 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
Abstract
The invention relates to a high-efficiency energy-saving fuel cell stack testing system which comprises a circulating waterway unit, a waterway temperature flow rate and pressure control unit, a waterway temperature energy-saving unit, a fuel cell stack to be tested, a hydrogen pretreatment and flow rate control unit, a hydrogen humidifying unit, a hydrogen temperature control unit, a hydrogen tail discharge temperature control pressure water-gas separation unit, an air temperature control unit, a membrane humidifier energy-saving unit, an air humidifying unit, an air pretreatment and flow rate control unit, an air tail discharge temperature control pressure water-gas separation unit and an electric control unit which are arranged on a supporting frame. Compared with the prior art, the invention can accurately control the flow, temperature, humidity and pressure of the gas and the circulating water entering the fuel cell stack, the humidity can reach 0-100% RH within the temperature range from room temperature to 90 ℃, and simultaneously, the energy required by humidifying and heating the gas and the energy required by recovering the waste heat of the gas and the circulating water can be greatly reduced.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a high-efficiency energy-saving fuel cell stack testing system.
Background
As a new green power source, a fuel cell engine is becoming one of the important developments of vehicle-mounted engines due to its excellent characteristics such as high efficiency and low emission. The fuel cell engine is based on the output of the load, and has good control for the whole vehicle; meanwhile, the energy output of the fuel cell engine is electric energy, so that the transmission and speed regulation structure of the traditional automobile is simplified. Although fuel cell engines have numerous advantages over internal combustion engines, fuel cell engines have become the mainstay of automotive engines instead of internal combustion engines, and many other problems need to be solved.
For fuel cells, which are composed of a set of electrodes and electrolyte plates, the output voltage of the fuel cell unit is low, the current density is low, and in order to obtain high voltage and power, a plurality of unit cells are usually connected in series to form a pile stack. Adjacent cells are separated by bipolar plates that are used to connect the cells in series and to provide a gas flow path for the cells. This stack structure is the core of the fuel cell system and is also a key technology for fuel cells. The fuel cell stack is formed by stacking a plurality of fuel cells in series. The bipolar plates and the membrane electrode MEA are alternately overlapped, sealing elements are embedded between the monomers, and the sealing elements are tightly pressed by the front end plate and the rear end plate and then fastened by screw bolts, so that the fuel cell stack is formed. A fuel cell stack is the site where electrochemical reactions take place and is the core of a fuel cell system (or fuel cell engine). When the electric pile works, hydrogen and oxygen are distributed to the bipolar plates of the single cells through the electric pile gas main channels respectively, are uniformly distributed to the electrodes through the diversion of the bipolar plates, and are contacted with the catalyst through the electrode support body to carry out electrochemical reaction.
In order to ensure the working reliability of the fuel cell stack, the fuel cell stack must be tested in a related manner, and the stack test often needs to be tested in a full power test, for example, for a 150kW high-power fuel cell stack test, the heat tracing generated by the stack during the full power test is about 150-170kW, which results in waste of a large amount of heat generated during the test, in addition, the air system flow during the test is about 10000SLPM, the energy required by integral humidification and the energy required by tail emission cooling are relatively large, on one hand, a large amount of energy is required for testing, and on the other hand, the control precision of the air humidification of the fuel cell is difficult to be ensured during the test.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-efficiency energy-saving fuel cell stack testing system so as to fully utilize heat generated in the testing process, realize energy-saving effect and realize high-precision control of fuel cell air humidification.
The aim of the invention can be achieved by the following technical scheme: the high-efficiency energy-saving fuel cell stack testing system comprises a supporting frame, wherein a circulating waterway unit is arranged on the supporting frame, the circulating waterway unit is respectively connected with a waterway temperature flow pressure control unit and a waterway temperature energy-saving unit, the waterway temperature flow pressure control unit and the waterway temperature energy-saving unit are both connected to a fuel cell stack to be tested, and deionized water is introduced into the waterway temperature energy-saving unit;
the fuel cell stack to be tested is further connected with a hydrogen temperature control unit, a hydrogen tail exhaust temperature control pressure water-gas separation unit, an air temperature control unit and a membrane humidifier energy-saving unit respectively, the hydrogen temperature control unit is connected with a hydrogen humidifying unit and a hydrogen pretreatment and flow control unit respectively, the hydrogen pretreatment and flow control unit is further connected to the hydrogen humidifying unit, and hydrogen is introduced into the hydrogen pretreatment and flow control unit;
the air temperature control unit is respectively connected with the air humidifying unit and the air preprocessing and flow control unit, the air preprocessing and flow control unit and the air humidifying unit are respectively connected with the membrane humidifier energy-saving unit, the membrane humidifier energy-saving unit is connected to the air tail exhaust temperature control pressure control water-air separation unit, and the air preprocessing and flow control unit is filled with air;
the waterway temperature energy-saving unit is respectively connected with the hydrogen humidifying unit and the air humidifying unit;
the support frame is also provided with an electric control unit, and the electric control unit is respectively connected with the circulating waterway unit, the waterway temperature flow pressure control unit, the waterway temperature energy-saving unit, the hydrogen temperature control unit, the hydrogen tail discharge temperature control pressure water-gas separation unit, the air temperature control unit, the membrane humidifier energy-saving unit, the hydrogen humidifying unit, the hydrogen pretreatment and flow control unit, the air humidifying unit, the air pretreatment and flow control unit and the air tail discharge temperature control pressure water-gas separation unit.
Further, the circulating waterway unit comprises a water tank and a first deionized water conveying pipeline connected with the water tank, wherein a pressure reducing valve, an electromagnetic valve, a filter, a temperature sensor and a pressure sensor are arranged on the first deionized water conveying pipeline; the circulating waterway unit provides deionized water supply for the circulating waterway of the whole pile test system, and after a laboratory deionized water pipeline passes through a pressure regulating valve, a filter and a one-way valve, the whole water tank and the circulating waterway are controlled by an electromagnetic valve to be supplied with deionized water;
the waterway temperature flow pressure control unit comprises a water pump, a proportional valve, a flowmeter, an electric regulating valve, a plate heat exchanger, a power regulator, a second deionized water conveying pipeline, and a heater, a temperature sensor and a pressure sensor which are arranged on the second deionized water conveying pipeline; after the flow meter monitors the current flow, the water pump and the proportional valve are regulated by comparing the set flow with the actual flow, after the temperature is monitored by the temperature sensor, the temperature of the circulating waterway is controlled by the control plate type heat exchanger and the heater to accurately reach the set temperature, and the electric regulating valve is used for regulating and controlling the waterway pressure;
the waterway temperature energy-saving unit comprises a plate heat exchanger, an electromagnetic valve and a humidifying tank water supplementing pipeline; the temperature of a circulating waterway is far higher than that of deionized water at room temperature when the electric pile is in operation, the heat tracing of the electric pile is required to be cooled by the plate heat exchanger to meet the test requirement, and meanwhile, the anode (hydrogen) and cathode (air) humidification tanks of the electric pile are supplemented with water and then rise to the required dew point temperature and then require a large amount of heat, so that the refrigerating capacity required by a test bench and the heat required by the circulating water temperature rise of the humidification tanks can be greatly saved by heating the plate heat exchanger before supplementing water to the humidification tanks.
Further, the hydrogen pretreatment and flow control unit comprises a first hydrogen conveying pipeline, a pressure reducing valve, a filter, an electromagnetic valve mass flow controller and a three-way valve, wherein the pressure reducing valve, the filter and the electromagnetic valve mass flow controller are arranged on the first hydrogen conveying pipeline, and the three-way valve is used for distributing dry and wet flow. The hydrogen passes through a pressure reducing valve and a filter to regulate pressure and filter impurities, and then the flow is controlled by a mass flow controller.
Further, the hydrogen humidifying unit comprises a first humidifying tank, a first humidifying tank circulating water pipeline, and a variable-frequency water pump, a water pump outlet pressure sensor, a heater, a plate heat exchanger, a heat exchanger hot side outlet temperature sensor and a plate heat exchanger cold side outlet proportional valve which are arranged on the first humidifying tank circulating water pipeline. The variable-frequency water pump is used for controlling the flow and the pressure of a loop, and the heater, the hot side outlet temperature sensor of the plate heat exchanger and the cold side outlet proportional valve of the plate heat exchanger are used for controlling the temperature of the loop, so that the hydrogen enters the humidifying tank and then is sprayed and humidified to reach the set dew point temperature.
Further, the hydrogen temperature control unit comprises a second hydrogen conveying pipeline, a gas heater, a heater outlet temperature sensor, a plate heat exchanger hot side outlet temperature sensor, a plate heat exchanger cold side outlet proportional valve and a heating belt, wherein the gas heater, the heater outlet temperature sensor, the plate heat exchanger hot side outlet temperature sensor, the plate heat exchanger cold side outlet proportional valve and the heating belt are arranged on the second hydrogen conveying pipeline. The temperature of the hydrogen gas feeding pile is precisely controlled through the heater, the plate heat exchanger and the related temperature sensor.
Further, the hydrogen tail gas exhaust temperature control pressure control water-gas separation unit comprises a third hydrogen conveying pipeline, a proportional valve arranged on the third hydrogen conveying pipeline, a pressure sensor at the front end and the rear end of the proportional valve, a plate heat exchanger, a ball valve and a temperature sensor at the cold side of the plate heat exchanger, a temperature sensor at the hot side outlet of the plate heat exchanger, a water-gas separation tank for water-gas separation and a water discharge electromagnetic valve. The proportional valve is used for controlling the back pressure of the whole hydrogen pipeline so as to control the hydrogen pressure of the electric pile. The plate heat exchanger is used for cooling the tail-exhaust high-temperature hydrogen. The water-gas separation tank and the drainage electromagnetic valve are used for collecting liquid water condensed and separated out after cooling.
Further, the air pretreatment and flow control unit comprises a first air conveying pipeline, a pressure reducing valve, a filter, an electromagnetic valve mass flow controller and a three-way valve, wherein the pressure reducing valve, the filter and the electromagnetic valve mass flow controller are arranged on the first air conveying pipeline, and the three-way valve is used for distributing dry flow and wet flow. The air is subjected to pressure regulation and impurity filtration through a pressure reducing valve and a filter, and then is subjected to flow control through a mass flow controller.
Further, the air humidifying unit comprises a second humidifying tank, a second humidifying tank circulating water pipeline, and a variable-frequency water pump, a water pump outlet pressure sensor, a heater, a plate heat exchanger hot side outlet temperature sensor and a plate heat exchanger cold side outlet proportional valve which are arranged on the second humidifying tank circulating water pipeline. The variable-frequency water pump is used for controlling the flow and the pressure of a loop, and the heater, the hot side outlet temperature sensor of the plate heat exchanger and the cold side outlet proportional valve of the plate heat exchanger are used for controlling the temperature of the loop, so that air enters the humidifying tank and is sprayed and humidified to reach the set dew point temperature.
Further, the air temperature control unit comprises a second air conveying pipeline, a gas heater, a heater outlet temperature sensor, a plate heat exchanger hot side outlet temperature sensor, a plate heat exchanger cold side outlet proportional valve and a heating belt, wherein the gas heater, the heater outlet temperature sensor, the plate heat exchanger hot side outlet temperature sensor, the plate heat exchanger cold side outlet proportional valve and the heating belt are arranged on the second air conveying pipeline. The temperature of the air inlet pile is precisely controlled through the heater, the plate heat exchanger and the related temperature sensor.
Further, the membrane humidifier energy-saving unit comprises a third air conveying pipeline, and a membrane humidifier, a dry side inlet temperature sensor, a dry side inlet pressure sensor, a dry side outlet temperature sensor, a dry side outlet pressure sensor, a wet side inlet temperature sensor, a wet side inlet pressure sensor, a wet side outlet temperature sensor and a wet side outlet pressure sensor which are arranged on the third air conveying pipeline. The membrane humidifier energy-saving unit pre-humidifies the gas to be humidified through the tail-exhaust high-temperature high-humidity gas, and after a part of energy transfer, the energy consumption of humidification in the humidification tank is reduced, and meanwhile, the energy consumption of cooling and condensing the tail-exhaust high-temperature high-humidity gas is reduced.
Further, the air tail exhaust temperature control pressure control water-gas separation unit comprises a fourth air conveying pipeline, a proportional valve arranged on the fourth air conveying pipeline, a pressure sensor at the front end and the rear end of the proportional valve, a plate heat exchanger, a ball valve and a temperature sensor at the cold side of the plate heat exchanger, a temperature sensor at the hot side outlet of the plate heat exchanger, a water-gas separation tank for water-gas separation and a drainage electromagnetic valve. The proportional valve is used for controlling the back pressure of the whole air pipeline so as to control the air pressure of the electric pile. The plate heat exchanger is used for cooling the tail-row high-temperature air. The water-gas separation tank and the drainage electromagnetic valve are used for collecting liquid water condensed and separated out after cooling.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the electronic control unit is respectively connected with the circulating waterway unit, the waterway temperature flow pressure control unit, the waterway temperature energy-saving unit, the air temperature control unit, the membrane humidifier energy-saving unit, the air humidification unit, the air pretreatment and flow control unit and the air tail exhaust temperature control pressure control water-gas separation unit, and the data information fed back by each unit module in real time is combined, so that parameters such as flow, pressure, temperature, humidity and the like required by air supply of the fuel cell stack can be accurately controlled, and the precision and the response are high.
2. According to the invention, the waterway temperature energy-saving unit, the membrane humidifier energy-saving unit, the hydrogen humidifying unit and the air humidifying unit are arranged, so that heat tracing generated by the fuel cell stack during testing can be fully utilized, and the problem of high humidifying energy consumption of high-temperature and high-humidity gas required under high flow can be optimized, thereby effectively saving energy consumption.
3. According to the invention, the hydrogen tail discharge temperature control pressure water-gas separation unit and the air tail discharge temperature control pressure water-gas separation unit are arranged, so that liquid water condensed and separated after cooling can be collected, the problem that the cooling water quantity required by cooling and condensing the tail discharge high-temperature high-humidity gas at a large flow rate is large is solved, the energy consumption is further saved, and meanwhile, the requirements of equipment and laboratories on the cooling water are greatly reduced.
Drawings
FIG. 1 is a schematic diagram of a system architecture of the present invention;
the figure indicates: 1. a circulating waterway unit, 2 waterway temperature flow pressure control units, 3 waterway temperature energy-saving units, 4 hydrogen pretreatment and flow control units, 5 hydrogen humidifying units, 6 hydrogen temperature control units, 7 hydrogen tail discharge temperature control pressure control water-gas separation units, 8, an air pretreatment and flow control unit, 9, an air humidification unit, 10, an air temperature control unit, 11, a membrane humidifier energy-saving unit, 12, an air tail exhaust temperature control pressure control water-gas separation unit, 13, a fuel cell stack to be tested, 14 and an electric control unit.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
Examples
As shown in fig. 1, a high-efficiency energy-saving fuel cell stack testing system comprises a supporting frame, wherein a circulating waterway unit 1, a waterway temperature flow pressure control unit 2, a waterway temperature energy-saving unit 3, a hydrogen pretreatment and flow control unit 4, a hydrogen humidifying unit 5, a hydrogen temperature control unit 6, a hydrogen tail discharge temperature control pressure control water-gas separation unit 7, an air pretreatment and flow control unit 8, an air humidifying unit 9, an air temperature control unit 10, a membrane humidifier energy-saving unit 11, an air tail discharge temperature control pressure control water-gas separation unit 12, a fuel cell stack 13 to be tested and an electric control unit 14 are arranged on the supporting frame.
The circulating waterway unit 1 comprises a circulating waterway water tank, a pressure reducing valve, an electromagnetic valve, a filter and related temperature and pressure sensors, wherein the pressure reducing valve, the electromagnetic valve, the filter and the related temperature and pressure sensors are arranged on the deionized water conveying pipe. The circulating waterway unit 1 provides deionized water supply for the circulating waterway of the whole pile testing system, and after a laboratory deionized water pipeline passes through a pressure regulating valve, a filter and a one-way valve, the whole water tank and the circulating waterway are controlled by an electromagnetic valve to be supplied with deionized water.
The waterway temperature flow pressure control unit 2 comprises a water pump, a proportional valve, a flowmeter, an electric regulating valve, a plate heat exchanger, a power regulator, a deionized water conveying pipe, a heater arranged on the deionized water conveying pipe and temperature pressure sensors, wherein the flowmeter is used for regulating the water pump and the proportional valve by comparing the set flow and the actual flow after monitoring the current flow, and controlling the plate heat exchanger and the heater to control the temperature of the circulating waterway to accurately reach the set temperature after temperature monitoring through the temperature sensors, and the electric regulating valve is used for regulating and controlling the waterway pressure.
The waterway temperature energy-saving unit 3 comprises a plate heat exchanger, an electromagnetic valve and a humidifying tank water supplementing pipeline. The temperature of a circulating waterway is far higher than that of deionized water at room temperature when the electric pile is in operation, the heat tracing of the electric pile is required to be cooled by the plate heat exchanger to meet the test requirement, and meanwhile, the anode (hydrogen) and cathode (air) humidification tanks of the electric pile are supplemented with water and then rise to the required dew point temperature and then require a large amount of heat, so that the refrigerating capacity required by a test bench and the heat required by the circulating water temperature rise of the humidification tanks can be greatly saved by heating the plate heat exchanger before supplementing water to the humidification tanks.
The hydrogen pretreatment and flow control unit 4 comprises a hydrogen delivery pipe, a pressure reducing valve, a filter, a solenoid valve mass flow controller and a three-way valve for distributing dry and wet flow, wherein the pressure reducing valve, the filter, the solenoid valve mass flow controller and the three-way valve are arranged on the hydrogen delivery pipe. The hydrogen passes through a pressure reducing valve and a filter to regulate pressure and filter impurities, and then the flow is controlled by a mass flow controller.
The hydrogen humidifying unit 5 comprises a humidifying tank, a circulating water pipeline of the humidifying tank, a variable-frequency water pump, a water pump outlet pressure sensor, a heater, a plate heat exchanger type heat exchanger hot side outlet temperature sensor and a plate heat exchanger cold side outlet proportional valve, wherein the variable-frequency water pump, the water pump outlet pressure sensor, the heater, the plate heat exchanger type heat exchanger hot side outlet temperature sensor and the plate heat exchanger cold side outlet proportional valve are arranged on the circulating water pipeline. The variable-frequency water pump is used for controlling the flow and the pressure of a loop, and the heater, the hot side outlet temperature sensor of the plate heat exchanger and the cold side outlet proportional valve of the plate heat exchanger are used for controlling the temperature of the loop, so that the hydrogen enters the humidifying tank and then is sprayed and humidified to reach the set dew point temperature.
The hydrogen temperature control unit 6 comprises a hydrogen conveying pipe, a gas heater arranged on the hydrogen conveying pipe, a heater outlet temperature sensor, a plate heat exchanger hot side outlet temperature sensor, a plate heat exchanger cold side outlet proportional valve and a heating belt. The temperature of the hydrogen gas feeding pile is precisely controlled through the heater, the plate heat exchanger and the related temperature sensor.
The hydrogen tail gas exhaust temperature control pressure control water-gas separation unit 7 comprises a proportional valve on a hydrogen conveying pipe, pressure sensors at the front end and the rear end of the proportional valve, a plate heat exchanger, a ball valve and a temperature sensor at the cold side of the plate heat exchanger, a temperature sensor at the hot side outlet of the plate heat exchanger, a water-gas separation tank for water-gas separation and a water discharge electromagnetic valve. The proportional valve is used for controlling the back pressure of the whole hydrogen pipeline so as to control the hydrogen pressure of the electric pile. The plate heat exchanger is used for cooling the tail-exhaust high-temperature hydrogen. The water-gas separation tank and the drainage electromagnetic valve are used for collecting liquid water condensed and separated out after cooling.
The air pretreatment and flow control unit 8 comprises an air delivery pipe, a pressure reducing valve, a filter, a solenoid valve mass flow controller and a three-way valve for distributing dry and wet flow, wherein the pressure reducing valve, the filter, the solenoid valve mass flow controller and the three-way valve are arranged on the air delivery pipe. The air is subjected to pressure regulation and impurity filtration through a pressure reducing valve and a filter, and then is subjected to flow control through a mass flow controller.
The air humidifying unit 9 comprises a humidifying tank, a circulating water pipeline of the humidifying tank, a variable-frequency water pump, a water pump outlet pressure sensor, a heater, a plate heat exchanger type heat exchanger hot side outlet temperature sensor and a plate heat exchanger cold side outlet proportional valve, wherein the variable-frequency water pump, the water pump outlet pressure sensor, the heater, the plate heat exchanger type heat exchanger hot side outlet temperature sensor and the plate heat exchanger cold side outlet proportional valve are arranged on the circulating water pipeline. The variable-frequency water pump is used for controlling the flow and the pressure of a loop, and the heater, the hot side outlet temperature sensor of the plate heat exchanger and the cold side outlet proportional valve of the plate heat exchanger are used for controlling the temperature of the loop, so that air enters the humidifying tank and is sprayed and humidified to reach the set dew point temperature.
The air temperature control unit 10 comprises an air conveying pipe, and a gas heater, a heater outlet temperature sensor, a plate heat exchanger hot side outlet temperature sensor, a plate heat exchanger cold side outlet proportional valve and a heating belt which are arranged on the air conveying pipe. The temperature of the air inlet pile is precisely controlled through the heater, the plate heat exchanger and the related temperature sensor.
The membrane humidifier energy saving unit 11 includes an air delivery pipe and a membrane humidifier, a dry side inlet temperature sensor, a dry side inlet pressure sensor, a dry side outlet temperature sensor, a dry side outlet pressure sensor, a wet side inlet temperature sensor, a wet side inlet pressure sensor, a wet side outlet temperature sensor, a wet side outlet pressure sensor, which are provided on the air delivery pipe. The membrane humidifier energy-saving unit 11 can pre-humidify the gas to be humidified through the tail-exhaust high-temperature and high-humidity gas, and can reduce the energy consumption of humidification in the humidification tank after a part of energy transfer, and simultaneously reduce the energy consumption of cooling and condensing the tail-exhaust high-temperature and high-humidity gas.
The air tail exhaust temperature control pressure control water-gas separation unit 12 comprises a proportional valve on an air conveying pipe, pressure sensors at the front end and the rear end of the proportional valve, a plate heat exchanger, a ball valve and a temperature sensor at the cold side of the plate heat exchanger, a temperature sensor at the hot side outlet of the plate heat exchanger, a water-gas separation tank for water-gas separation and a water discharge electromagnetic valve. The proportional valve is used for controlling the back pressure of the whole air pipeline so as to control the air pressure of the electric pile. The plate heat exchanger is used for cooling the tail-row high-temperature air. The water-gas separation tank and the drainage electromagnetic valve are used for collecting liquid water condensed and separated out after cooling.
The electronic control unit 14 includes electrical components such as a controller, a solid state relay, and a contactor.
In addition, in practical application, the humidification jar all can be equipped with level sensor, moisturizing solenoid valve and drainage solenoid valve, and after long-time continuous operation, a large amount of water is taken away to gas, can detect the moisturizing to the humidification jar through the level gauge, and the gas through the humidification jar is 100% RH humidity.
The temperature control unit of the humidifying path can also be arranged, and consists of a plate heat exchanger, a heater and related sensors, heating power of the heater is controlled through a PID algorithm when temperature rise or stability is maintained, and temperature compensation is controlled through the plate heat exchanger and a proportional valve, so that accurate water temperature control is realized. The temperature control system can simultaneously realize accurate dew point temperature control through the humidifying path, thereby realizing accurate humidity control.
The heating unit before stacking can be further arranged, the heating unit comprises a heater and a heating belt, the temperature of the humidified gas can be controlled through a PID algorithm, the accurate control of the gas humidity is realized through temperature rise, and the accurate control of the gas inlet temperature is realized.
The tail gas cooling unit comprises a plate heat exchanger and a ball valve connected with the plate heat exchanger, and the tail gas is cooled by the membrane humidifier, so that the temperature is reduced to be close to the room temperature, and a large amount of condensed water cannot appear when the tail gas is discharged to a pipeline in a laboratory.
The tail water drainage steam separation system comprises a water-steam separation tank, an electromagnetic valve, a ball valve and a liquid level sensor, and can automatically drain water through detection of the high liquid level sensor while water is accumulated continuously.
It should be noted that each pipeline is provided with a corresponding conventional pipeline fitting such as a filter, a one-way valve, a pressure regulating valve, a flow sensor, a pressure sensor, a temperature sensor, an ion concentration sensor and the like.
The working process of the technical scheme comprises the following steps: the test system is characterized in that a circulating waterway is supplemented with water by a circulating waterway unit 1, the temperature, flow and pressure of the whole circulating waterway are controlled by a waterway temperature and flow pressure control unit 2 during test, heat generated during operation of a pile is partially consumed in a waterway temperature energy-saving unit 3, hydrogen pretreatment and flow control unit 4 provides hydrogen supply for the test system and the pile, the pile-entering hydrogen is humidified by a hydrogen humidifying unit 5, the pile-entering hydrogen is temperature-controlled by a hydrogen temperature control unit 6, the pile-entering hydrogen is pressure-controlled by a hydrogen tail discharge temperature-controlled pressure-controlled water-gas separation unit 7, meanwhile, tail discharge high-temperature-humidity gas is condensed and separated from water, air supply is provided for the test system and the pile by an air humidifying unit 9, the pile-entering air is humidified by an air temperature-controlled unit 10, the pile-entering air is first-step humidified by a membrane humidifier energy-saving unit 11, the electric energy required by an air humidifying unit 9 is saved, the quantity required by an air tail discharge temperature-controlled pressure-separation unit 12 is saved, and the electric energy required by an electric control unit 14 is used for the operation of the electric control unit and the electric control unit is provided for the overall control of the operation of the electric control unit.
In order to verify the effectiveness of the technical scheme, the embodiment tests the 150kW high-power fuel cell stack, and verifies the energy conservation of the technical scheme from the following two aspects:
1. the air temperature at the rear end of the air pretreatment and flow control unit is room temperature (20 ℃), the air system flow is about 10000SLPM and the back pressure is 100kPa in a 150kW high-power fuel cell pile test.
In the air humidification unit, the system is considered as an adiabatic system, and the input heat is dry air Q air,in Moisturizing Q l,in Electric heating power W heat Considering efficiency, the output heat is Q out Saturated wet air, and calculating an assessment working condition according to a heat balance formula:
Q in ＝Q out
Q in ＝Q g,in +Q l,in +ηW heat
Q out ＝Q g,out +Q l,out
W heat is the heat exchange amount (kW); η is heater efficiency; omega g Is gas mass flow (kg/s); omega l Liquid water mass flow (kg/s) carried away for gas humidification; c P Specific heat (kJ/kg. Deg.C) is determined for the gas; delta T g Is the temperature rise (DEG C) of the gas; h is a v Is the enthalpy value (kJ/kg) of water vapor at dew point temperature; h is a l Is the enthalpy value (kJ/kg) of liquid water at normal temperature.
H is the moisture content (kg/kg); m is m v And m g Water vapor flow and dry gas flow (kg), respectively; m is M v And M g The molar masses (kg/mol) of water and gas, respectively; n is n v And n g The molar amounts (mol) of water vapor and dry gas, respectively; p (P) v And P represents the partial pressure of water vapor and the total pressure (Pa), respectively;
the concept of moisture content is introduced here, the moisture content being the ratio of the mass of water vapour in the air to the mass of absolute air, i.e.:
w v ＝w g H
w v represents the water vapor flow rate (kg/s); w (w) g The mass flow rate (kg/s) of the dry gas in the mixed gas is shown.
From this, it can be calculated that 20 ℃ 10000SLPM air is humidified and warmed to 90 ℃ and 100% RH wet gas, and when the pressure of the wet gas is 100kPa, if there is no membrane humidifier energy-saving unit, the heat provided by the humidifying path temperature control system is 218kW.
If the membrane humidifier energy-saving unit is arranged, 10000SLPM wet air at the wet side of 90 ℃ can be used for raising the dry gas at the dry side of 20 ℃ and 10000SLPM to 65 ℃ and 60% RH by selecting the membrane humidifier.
Meanwhile, the air humidification temperature of 40 ℃ and 10000SLPM and the RH humidity of 60 percent are increased to 90 ℃ and the RH humidity of 100 percent, and the heat provided by a humidifying path temperature control system is only 177.8kW when the stacking pressure is 100kPa.
It can be obtained that the energy is saved by 40.2kW through the energy-saving unit of the membrane humidifier, and the energy is saved by 40.2kW similarly in the tail row part tail row cooling system.
2. The front end deionized water of the waterway temperature energy-saving unit is at room temperature, the peak waterway outlet temperature is 95 ℃ under the assumption of 20 ℃ and 150kW high-power fuel cell pile test.
The 150kW high-power fuel cell pile test shows that the flow rate of the hydrogen system is about 3000SLPM, the flow rate of the air system is about 10000SLPM, the dew point temperature is 90 ℃, when the back pressure is 100kPa, the water quantity taken away by the hydrogen humidifying unit per minute (for gas humidification) is 1.29, and the water quantity taken away by the hydrogen humidifying unit per minute (for gas humidification) is 4.29LPM.
Considering the flow rate of the humidifying and moisturizing water in the pipeline, the plate exchange time, the total flow and the like, the plate heat exchanger can heat the deionized water at 20 ℃ to 80 ℃ under the working condition point,
the heat consumption per hour when the deionized water at 20 ℃ is heated to 80 ℃ is 23kW as can be obtained by a specific heat capacity formula.
It can be obtained that the air and hydrogen are humidified and energy is saved by 23kW through the waterway temperature energy-saving unit, and similarly, the refrigerating capacity is saved by 23kW through the waterway temperature flow pressure control unit.
In summary, the technical scheme can accurately control parameters such as flow, pressure, temperature, humidity and the like required by air supply of the fuel cell stack, and has high accuracy and quick response;
the technical scheme better utilizes the heat tracing generated by the electric pile when the fuel cell electric pile is tested under high power, thereby saving energy consumption;
the technical scheme optimizes the problem of larger humidifying energy consumption of high-temperature high-humidity gas required under large flow, and saves energy consumption;
the technical scheme optimizes the problem of large cooling water quantity required by cooling and condensing the tail-exhaust high-temperature high-humidity gas under large flow, saves energy consumption, and simultaneously greatly reduces the requirements of equipment and laboratories on cooling water.
Claims (6)
1. The high-efficiency energy-saving fuel cell stack testing system is characterized by comprising a supporting frame, wherein a circulating waterway unit (1) is arranged on the supporting frame, the circulating waterway unit (1) is respectively connected with a waterway temperature flow rate and pressure control unit (2) and a waterway temperature energy-saving unit (3), the waterway temperature flow rate and pressure control unit (2) and the waterway temperature energy-saving unit (3) are both connected to a fuel cell stack (13) to be tested, and deionized water is introduced into the waterway temperature energy-saving unit (3);
the fuel cell stack (13) to be tested is further connected with a hydrogen temperature control unit (6), a hydrogen tail exhaust temperature control pressure control water-air separation unit (7), an air temperature control unit (10) and a membrane humidifier energy-saving unit (11) respectively, the hydrogen temperature control unit (6) is connected with a hydrogen humidifying unit (5) and a hydrogen pretreatment and flow control unit (4) respectively, the hydrogen pretreatment and flow control unit (4) is further connected to the hydrogen humidifying unit (5), and the hydrogen pretreatment and flow control unit (4) is filled with hydrogen;
the air temperature control unit (10) is respectively connected with the air humidifying unit (9) and the air pretreatment and flow control unit (8), the air pretreatment and flow control unit (8) and the air humidifying unit (9) are respectively connected with the membrane humidifier energy-saving unit (11), the membrane humidifier energy-saving unit (11) is connected to the air tail exhaust temperature control pressure control water-air separation unit (12), and the air pretreatment and flow control unit (8) is filled with air;
the waterway temperature energy-saving unit (3) is respectively connected with the hydrogen humidifying unit (5) and the air humidifying unit (9);
the support frame is also provided with an electric control unit (14), and the electric control unit (14) is respectively connected with a circulating waterway unit (1), a waterway temperature flow pressure control unit (2), a waterway temperature energy-saving unit (3), a hydrogen temperature control unit (6), a hydrogen tail discharge temperature control pressure control water-gas separation unit (7), an air temperature control unit (10), a membrane humidifier energy-saving unit (11), a hydrogen humidifying unit (5), a hydrogen pretreatment and flow control unit (4), an air humidifying unit (9), an air pretreatment and flow control unit (8) and an air tail discharge temperature control pressure control water-gas separation unit (12);
the circulating waterway unit (1) comprises a water tank and a first deionized water conveying pipeline connected with the water tank, wherein a pressure reducing valve, an electromagnetic valve, a filter, a temperature sensor and a pressure sensor are arranged on the first deionized water conveying pipeline;
the waterway temperature flow pressure control unit (2) comprises a water pump, a proportional valve, a flowmeter, an electric regulating valve, a plate heat exchanger, a power regulator, a second deionized water conveying pipeline, and a heater, a temperature sensor and a pressure sensor which are arranged on the second deionized water conveying pipeline;
the waterway temperature energy-saving unit (3) comprises a plate heat exchanger, an electromagnetic valve and a humidifying tank water supplementing pipeline;
the hydrogen tail discharge temperature control pressure water-gas separation unit (7) comprises a third hydrogen conveying pipeline, a proportional valve arranged on the third hydrogen conveying pipeline, a pressure sensor at the front end and the rear end of the proportional valve, a plate heat exchanger, a ball valve and a temperature sensor at the cold side of the plate heat exchanger, a temperature sensor at the hot side outlet of the plate heat exchanger, a water-gas separation tank for water-gas separation and a water discharge electromagnetic valve;
the membrane humidifier energy-saving unit (11) comprises a third air conveying pipeline, a membrane humidifier, a dry side inlet temperature sensor, a dry side inlet pressure sensor, a dry side outlet temperature sensor, a dry side outlet pressure sensor, a wet side inlet temperature sensor, a wet side inlet pressure sensor, a wet side outlet temperature sensor and a wet side outlet pressure sensor, wherein the membrane humidifier, the dry side inlet temperature sensor, the dry side inlet pressure sensor, the dry side outlet temperature sensor, the dry side outlet pressure sensor, the wet side inlet pressure sensor and the wet side outlet pressure sensor are arranged on the third air conveying pipeline;
the air tail exhaust temperature control pressure water-gas separation unit (12) comprises a fourth air conveying pipeline, a proportional valve arranged on the fourth air conveying pipeline, a pressure sensor at the front end and the rear end of the proportional valve, a plate heat exchanger, a ball valve and a temperature sensor at the cold side of the plate heat exchanger, a temperature sensor at the hot side outlet of the plate heat exchanger, a water-gas separation tank for water-gas separation and a water discharge electromagnetic valve.
2. A fuel cell stack testing system according to claim 1, wherein the hydrogen pretreatment and flow control unit (4) comprises a first hydrogen delivery pipeline, a pressure reducing valve, a filter, a solenoid valve mass flow controller and a three-way valve for distributing dry and wet flow;
the hydrogen humidifying unit (5) comprises a first humidifying tank, a first humidifying tank circulating water pipeline, and a variable-frequency water pump, a water pump outlet pressure sensor, a heater, a plate heat exchanger, a heat exchanger hot side outlet temperature sensor and a plate heat exchanger cold side outlet proportional valve which are arranged on the first humidifying tank circulating water pipeline.
3. A high efficiency energy saving fuel cell stack testing system according to claim 1, wherein the hydrogen temperature control unit (6) comprises a second hydrogen delivery line and a gas heater, a heater outlet temperature sensor, a plate heat exchanger hot side outlet temperature sensor, a plate heat exchanger cold side outlet proportional valve and a heating belt arranged on the second hydrogen delivery line.
4. A fuel cell stack testing system according to claim 1, wherein the air pre-treatment and flow control unit (8) comprises a first air delivery line and a pressure reducing valve, a filter, a solenoid valve mass flow controller and a three-way valve for distributing dry and wet flow arranged on the first air delivery line.
5. A high efficiency energy saving fuel cell stack testing system according to claim 1, wherein the air humidification unit (9) comprises a second humidification tank, a second humidification tank circulating water pipeline, and a variable frequency water pump, a water pump outlet pressure sensor, a heater, a plate heat exchanger type heat exchanger hot side outlet temperature sensor and a plate heat exchanger type cold side outlet proportional valve arranged on the second humidification tank circulating water pipeline.
6. A fuel cell stack testing system according to claim 1, wherein the air temperature control unit (10) comprises a second air delivery line and a gas heater, a heater outlet temperature sensor, a plate heat exchanger hot side outlet temperature sensor, a plate heat exchanger cold side outlet proportional valve and a heating band arranged on the second air delivery line.
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| CN114778764B (en) * | 2022-03-16 | 2023-08-29 | 同济大学 | Testing system and method for fuel cell gas-water separator |
| CN114725471A (en) * | 2022-03-24 | 2022-07-08 | 上海神力科技有限公司 | Split fuel cell stack test bench device |
| CN114719558A (en) * | 2022-04-19 | 2022-07-08 | 江苏凌氢新能源科技有限公司 | Hydrogen cooling and cooling integrated unit and control method |
| CN115329609B (en) * | 2022-10-17 | 2023-01-06 | 中国汽车技术研究中心有限公司 | Humidifier modeling method based on Modelica and dew point approach temperature |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005353580A (en) * | 2004-05-10 | 2005-12-22 | Toyota Motor Corp | Humidification device of fuel cell |
| KR100778207B1 (en) * | 2006-11-08 | 2007-11-29 | 주식회사 효성 | Fuel cell system using waste heat of power conditioning system |
| JP2013080631A (en) * | 2011-10-04 | 2013-05-02 | Nittetsu Elex Co Ltd | Apparatus and method for supplying humidified gas to fuel cell |
| KR20130070162A (en) * | 2011-12-19 | 2013-06-27 | 자동차부품연구원 | Hydrogen supply system of fuelcell for automoblie |
| CN107908209A (en) * | 2017-09-30 | 2018-04-13 | 中车青岛四方机车车辆股份有限公司 | A kind of fuel battery test platform and its temperature and humidity control system |
| CN109585880A (en) * | 2018-10-10 | 2019-04-05 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of fuel battery test platform gas supply water system |
| CN109738812A (en) * | 2018-11-30 | 2019-05-10 | 北京建筑大学 | A kind of fuel battery test system and working method with anode exhaust gas recyclable device |
| CN212934680U (en) * | 2020-09-23 | 2021-04-09 | 中国第一汽车股份有限公司 | Humidification system of fuel cell |
| CN112786926A (en) * | 2021-01-28 | 2021-05-11 | 上海电气集团股份有限公司 | Hydrogen cycle testing system for fuel cell |
| CN112803043A (en) * | 2021-01-03 | 2021-05-14 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Fuel cell power system and low-temperature starting control method thereof |
| CN113299949A (en) * | 2021-04-08 | 2021-08-24 | 东风汽车集团股份有限公司 | Fuel cell thermal management system with low-temperature cold start function and control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102529902B1 (en) * | 2016-12-12 | 2023-05-08 | 현대자동차주식회사 | Fuel cell system |
-
2021
- 2021-10-18 CN CN202111209528.6A patent/CN114068997B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005353580A (en) * | 2004-05-10 | 2005-12-22 | Toyota Motor Corp | Humidification device of fuel cell |
| KR100778207B1 (en) * | 2006-11-08 | 2007-11-29 | 주식회사 효성 | Fuel cell system using waste heat of power conditioning system |
| JP2013080631A (en) * | 2011-10-04 | 2013-05-02 | Nittetsu Elex Co Ltd | Apparatus and method for supplying humidified gas to fuel cell |
| KR20130070162A (en) * | 2011-12-19 | 2013-06-27 | 자동차부품연구원 | Hydrogen supply system of fuelcell for automoblie |
| CN107908209A (en) * | 2017-09-30 | 2018-04-13 | 中车青岛四方机车车辆股份有限公司 | A kind of fuel battery test platform and its temperature and humidity control system |
| CN109585880A (en) * | 2018-10-10 | 2019-04-05 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of fuel battery test platform gas supply water system |
| CN109738812A (en) * | 2018-11-30 | 2019-05-10 | 北京建筑大学 | A kind of fuel battery test system and working method with anode exhaust gas recyclable device |
| CN212934680U (en) * | 2020-09-23 | 2021-04-09 | 中国第一汽车股份有限公司 | Humidification system of fuel cell |
| CN112803043A (en) * | 2021-01-03 | 2021-05-14 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Fuel cell power system and low-temperature starting control method thereof |
| CN112786926A (en) * | 2021-01-28 | 2021-05-11 | 上海电气集团股份有限公司 | Hydrogen cycle testing system for fuel cell |
| CN113299949A (en) * | 2021-04-08 | 2021-08-24 | 东风汽车集团股份有限公司 | Fuel cell thermal management system with low-temperature cold start function and control method |
Non-Patent Citations (1)
| Title |
|---|
| 大功率燃料电池堆氢气膜增湿系统实验研究;劳星胜 等;《舰船科学技术》;第30卷(第03期);第78-81页 * |
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