CN110010932A - A kind of on-vehicle fuel water management system and method - Google Patents
A kind of on-vehicle fuel water management system and method Download PDFInfo
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- CN110010932A CN110010932A CN201910377305.7A CN201910377305A CN110010932A CN 110010932 A CN110010932 A CN 110010932A CN 201910377305 A CN201910377305 A CN 201910377305A CN 110010932 A CN110010932 A CN 110010932A
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- pile
- moisture trap
- drain valve
- valve
- hydrogen
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 123
- 239000000446 fuel Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title abstract description 15
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 148
- 239000001257 hydrogen Substances 0.000 claims abstract description 138
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 138
- 239000007789 gas Substances 0.000 claims abstract description 48
- 238000007726 management method Methods 0.000 claims description 26
- 238000000926 separation method Methods 0.000 claims description 14
- 230000007812 deficiency Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 44
- 108010085603 SFLLRNPND Proteins 0.000 description 41
- 239000012535 impurity Substances 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 206010021036 Hyponatraemia Diseases 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- H01M8/04164—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 by condensers, gas-liquid separators or filters
-
- 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
- H01M8/0438—Pressure; Ambient pressure; Flow
- H01M8/04388—Pressure; Ambient pressure; Flow of anode reactants at the inlet or inside the fuel cell
-
- 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
- H01M8/0438—Pressure; Ambient pressure; Flow
- H01M8/04395—Pressure; Ambient pressure; Flow of cathode reactants at the inlet or inside the fuel cell
-
- 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
- H01M8/0438—Pressure; Ambient pressure; Flow
- H01M8/04425—Pressure; Ambient pressure; Flow at auxiliary devices, e.g. reformers, compressors, burners
-
- 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 belongs to fuel cell field, disclosing a kind of on-vehicle fuel water management system and method, system includes hydrogen supply component, the first moisture trap, pile, the first drain valve, the second moisture trap, the second drain valve, exhaust valve and circulating pump；The entrance of first moisture trap is connect with the outlet of hydrogen supply component, and the gas outlet of the first moisture trap and the hydrogen inlet of pile connect, and the water outlet of the first moisture trap is connect with the first drain valve；The entrance of second moisture trap and the hydrogen outlet of pile connect, first gas outlet of the second moisture trap is connect with exhaust valve and the first drain valve respectively, second gas outlet of the second moisture trap is connect by circulating pump with the entrance of the first moisture trap, and the water outlet of the second moisture trap is connect with the second drain valve.The present invention under various operating conditions, configures different drainage exhaust circuits, prevents pile anode humidification insufficient or humidifies excessively, improves the performance of fuel cell.
Description
Technical field
The invention belongs to field of fuel cell technology, in particular to a kind of on-vehicle fuel water management system and method.
Background technique
Proton Exchange Membrane Fuel Cells (Proton Exchange Membrane Fuel Cell, PEMFC) be it is a kind of with
Hydrogen is fuel, using oxygen as the electrochemical generating unit of oxidant.In fuel cell unique reaction product water cathode by
Hydrogen and oxygen are combined under the effect of the catalyst.
In a fuel cell, the presence of liquid water will lead to gas and be unevenly distributed in electrode and in system between each unit
Even, this will lead to the performance decline of fuel cell, and cause each single battery voltage in system inconsistent.Liquid dilutional hyponatremia or mistake
It is few, Proton Exchange Membrane Fuel Cells can all be brought a negative impact.
Currently, in the prior art, the mode of single moisture trap Yu circulator circulation loop in series is mostly used,
The remaining hydrogen of fuel cell anode outlet entraining liquid water is isolated into liquid water through moisture trap, then by circulator
It is sent into pile anode inlet.This mode can make the hydrogen for being recycled back to pile by circulator be nearly at saturation state and still
Carry a small amount of liquid water droplets secretly, when mixing when the low temperature dry hydrogen gas exported with pressure-regulating valve, high temperature and humidity flows back hydrogen will precipitation
Liquid water, liquid water enter pile anode and cause water logging, influence the performance of fuel cell.
Summary of the invention
The object of the present invention is to provide a kind of on-vehicle fuel water management system and methods, in different operating conditions
Under, it selects different drainage exhaust circuits to realize and leads to circulating hydrogen due to condensing the liquid water formed in low pressure hydrogen pipeline
Cross the separation of auxiliary moisture trap, and liquid water be discharged or hydrogen is humidified, to prevent pile anode humidification insufficient or
Humidification is excessive, improves the performance of pile.
Technical solution provided by the invention is as follows:
On the one hand, a kind of on-vehicle fuel water management system, including hydrogen supply component, the first moisture trap, electricity are provided
Heap, the first drain valve, the second moisture trap, the second drain valve, exhaust valve and circulating pump；
The entrance of first moisture trap is connect with the export pipeline of the hydrogen supply component, first gas-water separation
The hydrogen inlet piping connection of the gas outlet of device and the pile, the water outlet and the first row of first moisture trap
Water valve piping connection；
The entrance of second moisture trap and the hydrogen outlet piping connection of the pile, second gas-water separation
First gas outlet of device by triple valve respectively with the exhaust valve and the first drain valve piping connection, second air water
Second gas outlet of separator is connect by the circulating pump with the entrance pipe of first moisture trap, second gas
The water outlet of separator and the second drain valve piping connection.
It is further preferred that further include:
The pipeline that first moisture trap is connect with the pile is arranged in pressure sensor, the pressure sensor
On.
It is further preferred that further include:
Relief valve, the gas outlet of first moisture trap pass through the hydrogen inlet pipe of the relief valve and the pile
Road connection；
Mixer, the pressure relief opening of the relief valve and the mixer piping connection, the outlet of the exhaust valve and described
The outlet of second drain valve respectively with the mixer piping connection.
It is further preferred that further include:
The pipeline that first moisture trap is connect with the pile is arranged in temperature sensor, the temperature sensor
On.
It is further preferred that the hydrogen supply component includes high pressure hydrogen supply component, hydrogen inlet valve and the pressure of successively piping connection
Regulating valve；
The outlet of the pressure-regulating valve is connect with the entrance pipe of first moisture trap.
On the other hand, a kind of on-vehicle fuel water management method is also provided, comprising: hydrogen supply component, the first gas-water separation
Device, pile, the first drain valve, the second moisture trap, the second drain valve, exhaust valve and circulating pump；
The entrance of first moisture trap is connect with the export pipeline of the hydrogen supply component, first gas-water separation
The hydrogen inlet piping connection of the gas outlet of device and the pile, the water outlet and the first row of first moisture trap
Water valve piping connection；
The entrance of second moisture trap and the hydrogen outlet piping connection of the pile, second gas-water separation
First gas outlet of device by triple valve respectively with the exhaust valve and the first drain valve piping connection, second air water
Second gas outlet of separator is connect by the circulating pump with the entrance pipe of first moisture trap, second gas
The water outlet of separator and the second drain valve piping connection；
The on-vehicle fuel water management method includes:
When the pile room temperature is run, the anode humidification situation of the pile is detected；
When the anode of the pile humidifies deficiency, first drain valve is opened；
When the anode of the pile humidifies excess, second drain valve is opened；Or first draining is opened simultaneously
Valve, second drain valve and the exhaust valve；
When the pile cold-starting, first drain valve and the exhaust valve are opened.
It is further preferred that further include:
When the pressure wave momentum for the hydrogen inlet for detecting the pile is continuously less than normal fluctuation range, described in extension
The opening time of second drain valve；
When the pressure wave momentum for the hydrogen inlet for detecting the pile becomes greater than or waits from normal fluctuation range is less than
When normal fluctuation range, second drain valve is closed.
It is further preferred that further include:
In the pile normal shutdown, first drain valve, second drain valve and the exhaust valve are opened, and
First drain valve, second drain valve and the exhaust valve are purged.
It is further preferred that further include:
According to the output electric current and voltage of the pile, the hydrogen gas consumption of the pile is determined；
According to the hydrogen gas consumption, the hydrogen flowing quantity for entering the pile is adjusted.
It is further preferred that further include:
According to hydrogen gas consumption of the pile under different capacity, the revolving speed of the circulating pump is adjusted.
Compared with prior art, a kind of on-vehicle fuel water management system provided by the invention and method have beneficial
Effect are as follows: the present invention can configure a variety of drainage exhausts by the opening and closing of control the first drain valve, the second drain valve and exhaust valve
Circuit, this system under different operating conditions, select different drainage exhaust circuits to realize circulating hydrogen in low pressure hydrogen
Since the liquid water that condensation is formed is separated by auxiliary moisture trap in pipeline, and liquid water is discharged or hydrogen is added
It is wet, to prevent pile anode humidification insufficient or humidification volume, and then gas is avoided to be unevenly distributed between each unit in electrode
It is even, so that fuel battery performance declines, and cause each single battery voltage consistency in fuel cell pile to be deteriorated, and then improve combustion
Expect the operational efficiency and performance of battery stack；In addition, also can avoid because of valve in low temperature environment because icing can not be normally-open,
There is the phenomenon that pile low-temperature cool starting failure.
Detailed description of the invention
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, to a kind of on-vehicle fuel water
Above-mentioned characteristic, technical characteristic, advantage and its implementation of management system and method are further described.
Fig. 1 is a kind of structural schematic diagram of on-vehicle fuel water management system of the present invention.
Drawing reference numeral explanation
1, high pressure hydrogen supply component；2, hydrogen inlet valve；3, pressure-regulating valve；4, the first moisture trap；5, relief valve；6, temperature
Sensor；7, pressure sensor；8, pile；9, the second moisture trap；10, circulating pump；11, the second drain valve；12, it is vented
Valve；13, the first drain valve；14, mixer.
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, Detailed description of the invention will be compareed below
A specific embodiment of the invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented
Its practical structures as product.In addition, there is identical structure or function in some figures so that simplified form is easy to understand
Component only symbolically depicts one of those, or has only marked one of those.Herein, "one" is not only indicated
" only this ", can also indicate the situation of " more than one ".
The first embodiment provided according to the present invention, as shown in Figure 1, a kind of on-vehicle fuel water management system, including
Hydrogen supply component, the first moisture trap 4, pile 8, the first drain valve 13, the second moisture trap 9, the second drain valve 11, exhaust
Valve 12 and circulating pump 10；
The entrance of first moisture trap 4 is connect with the export pipeline of hydrogen supply component, and hydrogen supply component is used to provide hydrogen, the
The gas outlet of one moisture trap 4 and the hydrogen inlet piping connection of pile 8, the water outlet and first of the first moisture trap 4
13 piping connection of drain valve.
The entrance of second moisture trap 9 and the hydrogen outlet piping connection of pile 8, the first of the second moisture trap 9
By triple valve respectively with 13 piping connection of exhaust valve 12 and the first drain valve, the second of the second moisture trap 9 go out for gas outlet
Port is connect by circulating pump 10 with the entrance pipe of the first moisture trap 4, the water outlet and second of the second moisture trap 9
11 piping connection of drain valve.
The course of work of on-vehicle fuel water management system are as follows:
The hydrogen come out from hydrogen supply component enters pile 8 after the first moisture trap 4 and is reacted, in pile 8 not
Reacted hydrogen enters the second moisture trap 9.
When the first drain valve 13 is opened, exhaust valve 12 is closed, liquid water that the first moisture trap 4 is isolated passes through the
One drain valve 13 enters the second moisture trap 9, and the hydrogen that the second moisture trap 9 is isolated returns to first through circulating pump 10
The entrance of moisture trap 4.
When the first drain valve 13 is opened, exhaust valve 12 is opened, liquid water that the first moisture trap 4 is isolated passes through the
One drain valve 13 and exhaust valve 12 are discharged, and have a small amount of gas to be discharged through exhaust valve 12 in the second moisture trap 9, to exclude
The foreign gas (predominantly nitrogen) gathered in second moisture trap 9, avoids foreign gas from recycling in system always, reduces
Concentration of the impurity in entire circuit, avoids impurity from excessively entering pile 8, influences the performance of pile 8.
When the first drain valve 13 is closed, exhaust valve 12 is opened, a small amount of gas in the second moisture trap 9 (hydrogen and
Impurity nitrogen) it is discharged from exhaust valve 12, to reduce concentration of the impurity in entire circuit.The maneuverability of detection pile 8 can be passed through
Can, it is exhausted to determine whether needing to open exhaust valve 12.In practical work process, time that exhaust valve 12 is opened every time
It is shorter, it is discharged to avoid hydrogen a large amount of in the second gas-water separation through exhaust valve 12, waste of energy.
When the second drain valve 11 is opened, liquid water is discharged through the second drain valve 11 in the second moisture trap 9.
In the present invention, the first drain valve 13, the second drain valve 11 and exhaust valve 12 are normally closed switch solenoid valve.Pass through control
The opening and closing of the first drain valve 13, the second drain valve 11 and exhaust valve 12 is made, can configure a variety of drainage exhaust circuits, make the first gas
Separator 4 and the second moisture trap 9 can realize individual drainage, and be additionally provided with exhaust outlet on the second moisture trap 9, pass through
Exhaust valve 12 excludes the foreign gas in circulation loop.
For example, system room temperature is run, when 8 anode of pile humidifies insufficient (dry film), the second drain valve 11 and exhaust valve 12
It is in close state, opens the first drain valve 13, the liquid water separated in the first moisture trap 4 is made to enter the second gas-water separation
The saturation wet hydrogen that circulating hydrogen is humidified in device 9, and then makes to be recycled back to through circulating pump 10 with come out from hydrogen supply component
Dry hydrogen gas mixes in 4 entrance of the first moisture trap, then isolates liquid water through the first moisture trap 4.
When system room temperature is run, and 8 anode of pile humidifies excessive (water logging), by opening the second drain valve 11 or opening simultaneously
The first drain valve 13 and exhaust valve 12 are opened, the liquid water in the second moisture trap 9 and/or the first moisture trap 4 is direct
Discharge, with the amount of the liquid water in reduction system.
The humidification situation of 8 anode of pile can be judged by measuring the monomer voltage of pile 8.Water it is excessive it is very few all
It will lead to some abnormal conditions inside pile 8, such as when dilutional hyponatremia, water will block the gas passage inside pile 8,
Causing gas to enter less than catalyst surface, and causes effectively to divide and can reduce, intuitive reaction is exactly monomer voltage decline, and
Each single battery voltage in system is caused to differ.Therefore, 8 anode of pile can be judged by each monomer voltage in measurement pile 8
Humidify situation.It may also be combined with the displacement of moisture trap in the judgment process to be judged.
When on-vehicle fuel water management system stops working, the first drain valve 13 and the second drain valve 11 are opened, it will
Liquid water in first moisture trap 4 and the second moisture trap 9 drains, and is purged.
In system work process, since the liquid water in the first moisture trap 4 is less, during the work time, it can lead to
The all discharges of the first drain valve 13 are crossed, and the opening time settable ground of the first drain valve 13 is longer；But the second drain valve
11 cannot be constantly in open state, because will lead to the second gas when the long-term unlatching of the second drain valve 11 or longer opening time
Hydrogen in separator 9 is discharged from the second drain valve 11；Therefore, in system stalls and after being purged, second row
Still a small amount of water may remains inside water valve 11.If system is restarted after placing a period of time in the environment lower than zero degree,
A small amount of water of second drain valve, 11 internal residual can freeze, and will lead to the second drain valve 11 can not open, so that draining failure.This
When, the impurity gathered in circulation loop can be discharged while excluding superfluous water by opening the first drain valve 13 and exhaust valve 12
Gas.
There is the method using Electric heat radiator heating electromagnetic valve in the prior art, the phenomenon that avoid low-temperature cool starting from failing, but
It is that Electric heat radiator heating time is long, will increase the time started under 8 low temperature of pile, and additional electric energy will increase using Electric heat radiator,
Cause energy waste.
In the present invention, by controlling the opening and closing of the first drain valve 13, the second drain valve 11 and exhaust valve 12, it can configure more
Kind drainage exhaust circuit, this system under different operating conditions, select different drainage exhaust circuits to realize circulating hydrogen
In low pressure hydrogen pipeline due to condensation formed liquid water by auxiliary moisture trap separation, and by liquid water discharge or it is right
Hydrogen is humidified, to prevent 8 anode of pile humidification insufficient or humidification volume, and then avoid gas in electrode and each unit it
Between be unevenly distributed so that fuel battery performance declines, and each single battery voltage consistency in fuel cell pile 8 is caused to become
Difference, and then improve the operational efficiency and performance of fuel cell pile 8；In addition, also can avoid because of valve in low temperature environment because freezing
And can not be normally-open, there is the phenomenon that 8 low-temperature cool starting of pile failure.
The second embodiment provided according to the present invention, as shown in Figure 1, the present embodiment is on the basis of above-mentioned first embodiment
On, it further include pressure sensor 7, pressure sensor 7 is arranged on the pipeline that the first moisture trap 4 is connect with pile 8.
After opening the second drain valve 11, pressure sensor 7 is available by the pressure wave momentum of detection 8 hydrogen inlet of pile
Whether the liquid water in the second moisture trap of auxiliary judgment 9, which discharges, finishes.Have in the second moisture trap 9 liquid water,
Hydrogen and vaporous water with certain partial pressure.Hydrogen density is much smaller than the density of liquid water, and hydrogen is in the second gas-water separation
Upper layer gaseous space is in device 9, liquid water is located at the bottom of the second moisture trap 9.What pressure sensor 7 detected is pile
The pressure of 8 inlet gas, after the liquid water in the second moisture trap 9 is drained, the gas in upper space can be from bottom
The discharge of two drain valves 11, causes 8 entrance Hydrogen Vapor Pressure transient fluctuation of pile larger.
If pressure wave momentum is always less than normal row's hydrogen pressure fluctuation range, illustrate the liquid in the second moisture trap 9
State water, which does not discharge, to be finished, and needs to be appropriately extended the opening time of the second drain valve 11.Wherein, hydrogen pressure fluctuation range root is normally arranged
It is obtained according to the operating pressure of pile 8.
If pressure wave momentum becomes greater than or is equal to normal row's hydrogen pressure fluctuation from normal row's hydrogen pressure fluctuation range is less than
Range then illustrates that the liquid water discharge in the second moisture trap 9 finishes, needs to close the second drain valve 11.
The pressure oscillation value of 8 hydrogen inlet of pile is detected by pressure sensor 7 to judge in the second moisture trap 9
Liquid water whether discharge and finish, and then judge whether the opening time of the second drain valve 11 reasonable, to prevent second row water valve
11 because the opening time is too long, and the hydrogen in the second moisture trap 9 is caused to be discharged, and reduces the utilization rate of hydrogen, wastes energy
Source；It can also prevent the second drain valve 11 from causing the liquid water in the second moisture trap 9 not arranged sufficiently because the opening time is too short
Out, cause 8 anode of pile humidification excessive, influence the operational efficiency and performance of pile 8.
The 3rd embodiment provided according to the present invention, as shown in Figure 1, the present embodiment is real in above-mentioned first embodiment or second
On the basis of applying example, further includes: relief valve 5 and mixer 14；The gas outlet of first moisture trap 4 passes through relief valve 5 and electricity
The hydrogen inlet piping connection of heap 8；The pressure relief opening and 14 piping connection of mixer of relief valve 5, the outlet of exhaust valve 12 and second
The outlet of drain valve 11 respectively with 14 piping connection of mixer.
Hydrogen Vapor Pressure can be adjusted to suitable pressure by pressure-regulating valve 3, then when exporting hydrogen by hydrogen supply component
It send to 8 anode inlet of pile.But when the pressure-regulating valve 3 in hydrogen supply component fails, it is excessively high to will lead to Hydrogen Vapor Pressure, makes
The high pressure hydrogen obtained into pile 8 causes fatefulue destruction to pile 8.The present embodiment in 8 anode inlet of pile by setting
Relief valve 5 is set, and the operating pressure of relief valve 5 is set, pressure release can be passed through when the pressure-regulating valve 3 in hydrogen supply component fails
Valve 5 carries out pressure release, avoids the gas of high pressure from entering pile 8 and causes fatefulue destruction to pile 8, and then improves pile 8
Service life.
Preferably, system further includes temperature sensor 6, and the setting of temperature sensor 6 is in the first moisture trap 4 and pile 8
On the pipeline of connection.Temperature sensor 6 can be used for detecting the temperature of the hydrogen into pile 8.
Preferably, hydrogen supply component includes high pressure hydrogen supply component 1, hydrogen inlet valve 2 and the pressure-regulating valve 3 of successively piping connection；
The outlet of pressure-regulating valve 3 is connect with the entrance pipe of the first moisture trap 4.Pressure-regulating valve 3 is for adjusting Hydrogen Vapor Pressure.
During the work time, Hydrogen Vapor Pressure is decompressed to 10 ± 1barA by high pressure hydrogen supply component 1, and then pressure-regulating valve 3 will
Hydrogen Vapor Pressure is adjusted to 1.2-2.5barA.The vent pressure of relief valve 5 is set according to the operating pressure of pile 8, is such as set
For 2.7barA.
Preferably, the first moisture trap 4 and the second moisture trap 9 are respectively screen type or cyclone separating air water point
From device.
It preferably, further include fuel battery engines control unit (FCU), fuel battery engines control unit (FCU)
With temperature sensor 6, pressure sensor 7, the first drain valve 13, the second drain valve 11, exhaust valve 12, circulating pump 10 and pressure tune
Valve 3 is saved to be electrically connected.Fuel battery engines control unit (FCU) temperature collection sensor 6,7 data of pressure sensor, control the
The open state of one drain valve 13, the second drain valve 11 and exhaust valve 12, and the revolving speed of control loop pump 10 and pressure are adjusted
The adjusting pressure of valve 3.
The fourth embodiment provided according to the present invention, as shown in Figure 1, a kind of on-vehicle fuel water management method, including
Hydrogen supply component, the first moisture trap 4, pile 8, the first drain valve 13, the second moisture trap 9, the second drain valve 11, exhaust
Valve 12 and circulating pump 10；
The entrance of first moisture trap 4 is connect with the export pipeline of hydrogen supply component, the gas outlet of the first moisture trap 4
With the hydrogen inlet piping connection of pile 8,13 piping connection of water outlet and the first drain valve of the first moisture trap 4；
The entrance of second moisture trap 9 and the hydrogen outlet piping connection of pile 8, the first of the second moisture trap 9
By triple valve respectively with 13 piping connection of exhaust valve 12 and the first drain valve, the second of the second moisture trap 9 go out for gas outlet
Port is connect by circulating pump 10 with the entrance pipe of the first moisture trap 4, the water outlet and second of the second moisture trap 9
11 piping connection of drain valve；
On-vehicle fuel water management method includes:
In the operation of 8 room temperature of pile, the anode of detection pile 8 humidifies situation；
When the anode of pile 8 humidifies deficiency, the first drain valve 13 is opened；
When the anode of pile 8 humidifies excess, the second drain valve 11 is opened；Or the first drain valve 13, second is opened simultaneously
Drain valve 11 and exhaust valve 12；
When 8 cold-starting of pile, the first drain valve 13 and exhaust valve 12 are opened.
In the present invention, the first drain valve 13, the second drain valve 11 and exhaust valve 12 are normally closed switch solenoid valve.Pass through control
The opening and closing of the first drain valve 13, the second drain valve 11 and exhaust valve 12 is made, can configure a variety of drainage exhaust circuits, make the first gas
Separator 4 and the second moisture trap 9 can realize individual drainage, and be additionally provided with exhaust outlet on the second moisture trap 9, pass through
Exhaust valve 12 excludes the foreign gas in circulation loop.
When system room temperature is run, and 8 anode of pile humidifies insufficient (dry film), the second drain valve 11 and exhaust valve 12 are in and close
Closed state opens the first drain valve 13, enters the liquid water separated in the first moisture trap 4 in the second moisture trap 9
Circulating hydrogen is humidified, and then makes the saturation wet hydrogen being recycled back to through circulating pump 10 and the dry hydrogen gas from hydrogen supply component out
It is mixed in 4 entrance of the first moisture trap, then isolates liquid water through the first moisture trap 4.
When system room temperature is run, and 8 anode of pile humidifies excessive (water logging), by opening the second drain valve 11 or opening simultaneously
The first drain valve 13 and exhaust valve 12 are opened, the liquid water in the second moisture trap 9 and/or the first moisture trap 4 is direct
Discharge, with the amount of the liquid water in reduction system.
The humidification situation of 8 anode of pile can be judged by measuring the monomer voltage of pile 8.Water it is excessive it is very few all
It will lead to some abnormal conditions inside pile 8, such as when dilutional hyponatremia, water will block the gas passage inside pile 8,
Causing gas to enter less than catalytic inner, and causes effectively to divide and can reduce, intuitive reaction is exactly monomer voltage decline, and
Each single battery voltage in system is caused to differ.Therefore, 8 anode of pile can be judged by each monomer voltage in measurement pile 8
Humidify situation.It may also be combined with the displacement of moisture trap in the judgment process to be judged.
In system work process, since the liquid water in the first moisture trap 4 is less, during the work time
It by all discharges of the first drain valve 13, and the opening time settable ground of the first drain valve 13 longer or is kept on all, makes
Liquid water in first moisture trap 4 drains；But the second drain valve 11 cannot be constantly in open state, because of second row
When water valve 11 is opened for a long time or the opening time is longer, the hydrogen in the second moisture trap 9 will lead to from the second drain valve 11
Discharge causes to discharge (hydrogen content is higher) not up to standard；Therefore, in system stalls and after being purged, the second drain valve
Still a small amount of water may remains inside 11.If system is restarted after placing a period of time in the environment lower than zero degree, second
A small amount of water of 11 internal residual of drain valve can freeze, and will lead to the second drain valve 11 can not open, so that draining failure.At this point,
The impurity gas gathered in circulation loop can be discharged while excluding superfluous water by opening the first drain valve 13 and exhaust valve 12
Body.
There is the method using Electric heat radiator heating electromagnetic valve in the prior art, the phenomenon that avoid low-temperature cool starting from failing, but
It is that Electric heat radiator heating time is long, will increase the time started under 8 low temperature of pile, and additional electric energy will increase using Electric heat radiator,
Cause energy waste.
In the present invention, by controlling the opening and closing of the first drain valve 13, the second drain valve 11 and exhaust valve 12, it can configure more
Kind drainage exhaust circuit, this system under different operating conditions, select different drainage exhaust circuits to realize circulating hydrogen
In low pressure hydrogen pipeline due to condensation formed liquid water by auxiliary moisture trap separation, and by liquid water discharge or it is right
Hydrogen is humidified, to prevent 8 anode of pile humidification insufficient or humidification volume, and then avoid gas in electrode and each unit it
Between be unevenly distributed so that fuel battery performance declines, and each single battery voltage consistency in fuel cell pile 8 is caused to become
Difference, and then improve the operational efficiency and performance of fuel cell pile 8；In addition, also can avoid because of valve in low temperature environment because freezing
And can not be normally-open, there is the phenomenon that 8 low-temperature cool starting of pile failure.
The 5th embodiment provided according to the present invention, as shown in Figure 1, on the basis of above-mentioned fourth embodiment, further includes:
When the pressure wave momentum for the hydrogen inlet for detecting pile 8 is continuously less than normal fluctuation range, extend the second drain valve 11
Opening time；
When the pressure wave momentum for the hydrogen inlet for detecting pile 8 becomes greater than or from normal fluctuation range is less than equal to just
When normal fluctuation range, the second drain valve 11 is closed.
Pressure sensor 7 is provided on the pipeline that the first moisture trap 4 is connect with pile 8.It is drained in unlatching second
After valve 11, pressure sensor 7 can be used for the second gas-water separation of auxiliary judgment by detecting the pressure wave momentum of 8 hydrogen inlet of pile
Whether the liquid water in device 9, which discharges, finishes.
If pressure wave momentum is always less than normal row's hydrogen pressure fluctuation range, illustrate the liquid in the second moisture trap 9
State water, which does not discharge, to be finished, and needs to be appropriately extended the opening time of the second drain valve 11.Wherein, hydrogen pressure fluctuation range root is normally arranged
It is obtained according to the operating pressure of pile 8.
If pressure wave momentum becomes greater than or is equal to normal row's hydrogen pressure fluctuation from normal row's hydrogen pressure fluctuation range is less than
Range then illustrates that the liquid water discharge in the second moisture trap 9 finishes, needs to close the second drain valve 11.
The pressure oscillation value of 8 hydrogen inlet of pile is detected by pressure sensor 7 to judge in the second moisture trap 9
Liquid water whether discharge and finish, and then judge whether the opening time of the second drain valve 11 reasonable, to prevent second row water valve
11 because the opening time is too long, and the hydrogen in the second moisture trap 9 is caused to be discharged, and reduces the utilization rate of hydrogen, wastes energy
Source；It can also prevent the second drain valve 11 from causing the liquid water in the second moisture trap 9 not arranged sufficiently because the opening time is too short
Out, cause 8 anode of pile humidification excessive, influence the operational efficiency and performance of pile 8.
Preferably, on-vehicle fuel water management system further includes relief valve 5 and mixer 14, the first moisture trap 4
Gas outlet pass through the hydrogen inlet piping connection of relief valve 5 and pile 8；The pressure relief opening and 14 pipeline of mixer of relief valve 5 connect
Connect, exhaust valve 12 outlet and the second drain valve 11 outlet respectively with 14 piping connection of mixer.When detecting from hydrogen supply group
When the Hydrogen Vapor Pressure exported in part is higher than preset threshold, pressure release is carried out by relief valve 5.
Hydrogen Vapor Pressure can be adjusted to suitable pressure by pressure-regulating valve 3, then when exporting hydrogen by hydrogen supply component
It send to 8 anode inlet of pile.But when the pressure-regulating valve 3 in hydrogen supply component fails, it is excessively high to will lead to Hydrogen Vapor Pressure, makes
The high pressure hydrogen obtained into pile 8 causes fatefulue destruction to pile 8.The present embodiment in 8 anode inlet of pile by setting
Relief valve 5 is set, and the operating pressure of relief valve 5 is set, pressure release can be passed through when the pressure-regulating valve 3 in hydrogen supply component fails
Valve 5 carries out pressure release, avoids the gas of high pressure from entering pile 8 and causes fatefulue destruction to pile 8, and then improves pile 8
Service life.
Preferably, system further includes temperature sensor 6, and the setting of temperature sensor 6 is in the first moisture trap 4 and pile 8
On the pipeline of connection.Temperature sensor 6 can be used for detecting the temperature of the hydrogen into pile 8.
Preferably, hydrogen supply component includes high pressure hydrogen supply component 1, hydrogen inlet valve 2 and the pressure-regulating valve 3 of successively piping connection；
The outlet of pressure-regulating valve 3 is connect with the entrance pipe of the first moisture trap 4.Pressure-regulating valve 3 is for adjusting Hydrogen Vapor Pressure.
During the work time, Hydrogen Vapor Pressure is decompressed to 10 ± 1barA by high pressure hydrogen supply component 1, and then pressure-regulating valve 3 will
Hydrogen Vapor Pressure is adjusted to 1.2-2.5barA.The vent pressure of relief valve 5 is set according to the operating pressure of pile 8, is such as set
For 2.7barA.
Preferably, the first moisture trap 4 and the second moisture trap 9 are respectively screen type or cyclone separating air water point
From device.
It preferably, further include fuel battery engines control unit (FCU), fuel battery engines control unit (FCU)
With temperature sensor 6, pressure sensor 7, the first drain valve 13, the second drain valve 11, exhaust valve 12, circulating pump 10 and pressure tune
Valve 3 is saved to be electrically connected.Fuel battery engines control unit (FCU) temperature collection sensor 6,7 data of pressure sensor, control the
The open state of one drain valve 13, the second drain valve 11 and exhaust valve 12, and the revolving speed of control loop pump 10 and pressure are adjusted
The adjusting pressure of valve 3.
The sixth embodiment provided according to the present invention, as shown in Figure 1, in the base of above-mentioned fourth embodiment or the 5th embodiment
On plinth, further includes: in 8 normal shutdown of pile, open the first drain valve 13, the second drain valve 11 and exhaust valve 12, and to the
One drain valve 13, the second drain valve 11 and exhaust valve 12 are purged, to keep the drying of system as far as possible.
Preferably, further includes: according to the output electric current and voltage of pile 8, determine the hydrogen gas consumption of pile 8；And pass through
Fuel battery engines control unit (FCU) controls pressure-regulating valve 3 to adjust the hydrogen flowing quantity and hydrogen that react into pile 8
Pressure.
According to hydrogen gas consumption, the hydrogen flowing quantity for entering pile 8 is adjusted.
Preferably, further includes: according to hydrogen gas consumption of the pile 8 under different capacity, pass through fuel battery engines control
Unit (FCU) processed adjusts the revolving speed of circulating pump 10, carrys out the hydrogen flowing quantity of 8 anode inlet of control loop telegram in reply heap.Hydrogen gas consumption
When bigger, the revolving speed of circulating pump 10 is bigger.
It should be noted that above-described embodiment can be freely combined as needed.The above is only of the invention preferred
Embodiment, it is noted that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, several improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (10)
1. a kind of on-vehicle fuel water management system, which is characterized in that including hydrogen supply component, the first moisture trap, pile,
First drain valve, the second moisture trap, the second drain valve, exhaust valve and circulating pump；
The entrance of first moisture trap is connect with the export pipeline of the hydrogen supply component, first moisture trap
The hydrogen inlet piping connection of gas outlet and the pile, the water outlet of first moisture trap and first drain valve
Piping connection；
The entrance of second moisture trap and the hydrogen outlet piping connection of the pile, second moisture trap
First gas outlet by triple valve respectively with the exhaust valve and the first drain valve piping connection, second gas-water separation
Second gas outlet of device is connect by the circulating pump with the entrance pipe of first moisture trap, second air water point
From the water outlet of device and the second drain valve piping connection.
2. a kind of on-vehicle fuel water management system according to claim 1, which is characterized in that further include:
Pressure sensor, the pressure sensor are arranged on the pipeline that first moisture trap is connect with the pile.
3. a kind of on-vehicle fuel water management system according to claim 1 or 2, which is characterized in that further include:
The gas outlet of relief valve, first moisture trap is connected by the hydrogen inlet pipeline of the relief valve and the pile
It connects；
Mixer, the pressure relief opening of the relief valve and the mixer piping connection, the outlet of the exhaust valve and described second
The outlet of drain valve respectively with the mixer piping connection.
4. a kind of on-vehicle fuel water management system according to claim 1, which is characterized in that further include:
Temperature sensor, the temperature sensor are arranged on the pipeline that first moisture trap is connect with the pile.
5. a kind of on-vehicle fuel water management system according to claim 1, which is characterized in that the hydrogen supply component packet
Include high pressure hydrogen supply component, hydrogen inlet valve and the pressure-regulating valve of successively piping connection；
The outlet of the pressure-regulating valve is connect with the entrance pipe of first moisture trap.
6. a kind of on-vehicle fuel water management method, which is characterized in that including hydrogen supply component, the first moisture trap, pile,
First drain valve, the second moisture trap, the second drain valve, exhaust valve and circulating pump；
The entrance of first moisture trap is connect with the export pipeline of the hydrogen supply component, first moisture trap
The hydrogen inlet piping connection of gas outlet and the pile, the water outlet of first moisture trap and first drain valve
Piping connection；
The entrance of second moisture trap and the hydrogen outlet piping connection of the pile, second moisture trap
First gas outlet by triple valve respectively with the exhaust valve and the first drain valve piping connection, second gas-water separation
Second gas outlet of device is connect by the circulating pump with the entrance pipe of first moisture trap, second air water point
From the water outlet of device and the second drain valve piping connection；
The on-vehicle fuel water management method includes:
When the pile room temperature is run, the anode humidification situation of the pile is detected；
When the anode of the pile humidifies deficiency, first drain valve is opened；
When the anode of the pile humidifies excess, second drain valve is opened；Or first drain valve, institute are opened simultaneously
State the second drain valve and the exhaust valve；
When the pile cold-starting, first drain valve and the exhaust valve are opened.
7. a kind of on-vehicle fuel water management method according to claim 6, which is characterized in that further include:
When the pressure wave momentum for the hydrogen inlet for detecting the pile is continuously less than normal fluctuation range, extend described second
The opening time of drain valve；
When the pressure wave momentum for the hydrogen inlet for detecting the pile becomes greater than or from normal fluctuation range is less than equal to just
When normal fluctuation range, second drain valve is closed.
8. a kind of on-vehicle fuel water management method according to claim 6 or 7, which is characterized in that further include:
In the pile normal shutdown, first drain valve, second drain valve and the exhaust valve are opened, and to institute
The first drain valve, second drain valve and the exhaust valve is stated to be purged.
9. a kind of on-vehicle fuel water management method according to claim 6, which is characterized in that further include:
According to the output electric current and voltage of the pile, the hydrogen gas consumption of the pile is determined；
According to the hydrogen gas consumption, the hydrogen flowing quantity for entering the pile is adjusted.
10. a kind of on-vehicle fuel water management method according to claim 6, which is characterized in that further include:
According to hydrogen gas consumption of the pile under different capacity, the revolving speed of the circulating pump is adjusted.
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| CN201910377305.7A CN110010932A (en) | 2019-05-07 | 2019-05-07 | A kind of on-vehicle fuel water management system and method |
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|---|---|---|---|
| CN201910377305.7A CN110010932A (en) | 2019-05-07 | 2019-05-07 | A kind of on-vehicle fuel water management system and method |
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| CN201910377305.7A Pending CN110010932A (en) | 2019-05-07 | 2019-05-07 | A kind of on-vehicle fuel water management system and method |
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| CN110854414A (en) * | 2019-10-23 | 2020-02-28 | 中国第一汽车股份有限公司 | Fuel cell anode drainage method and device |
| CN111029619A (en) * | 2019-11-27 | 2020-04-17 | 中国第一汽车股份有限公司 | Fuel cell hydrogen circulation system, hydrogen loop control method and hydrogen discharge and drainage method |
| CN111613815A (en) * | 2020-05-26 | 2020-09-01 | 东风汽车集团有限公司 | Fuel cell hydrogen circulation system and control method thereof |
| CN113067016A (en) * | 2021-03-17 | 2021-07-02 | 一汽解放汽车有限公司 | Hydrogen side drainage system of fuel cell |
| CN113140755A (en) * | 2021-04-19 | 2021-07-20 | 绍兴学森能源科技有限公司 | Multi-stack fuel cell hydrogen supply system and control method thereof |
| CN113258101A (en) * | 2021-06-25 | 2021-08-13 | 北京亿华通科技股份有限公司 | Fuel cell system and operation control method thereof |
| WO2021164172A1 (en) * | 2020-02-21 | 2021-08-26 | 浙江大学 | Anode gas purification control method for proton exchange membrane fuel cell |
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| CN114094140A (en) * | 2021-09-28 | 2022-02-25 | 东风汽车集团股份有限公司 | Hydrogen fuel cell vehicle, hydrogen supply system and hydrogen supply method thereof |
| CN114497640A (en) * | 2021-12-25 | 2022-05-13 | 安徽明天氢能科技股份有限公司 | Box dehumidification structure of fuel cell system |
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| WO2022223371A1 (en) * | 2021-04-22 | 2022-10-27 | Robert Bosch Gmbh | Method for operating a fuel cell system, and control device |
| WO2023110475A1 (en) * | 2021-12-14 | 2023-06-22 | Robert Bosch Gmbh | Method for operating a fuel cell system, and control device |
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| WO2021164172A1 (en) * | 2020-02-21 | 2021-08-26 | 浙江大学 | Anode gas purification control method for proton exchange membrane fuel cell |
| CN111613815A (en) * | 2020-05-26 | 2020-09-01 | 东风汽车集团有限公司 | Fuel cell hydrogen circulation system and control method thereof |
| CN111613815B (en) * | 2020-05-26 | 2021-09-10 | 东风汽车集团有限公司 | Fuel cell hydrogen circulation system and control method thereof |
| CN113067016A (en) * | 2021-03-17 | 2021-07-02 | 一汽解放汽车有限公司 | Hydrogen side drainage system of fuel cell |
| CN113140755A (en) * | 2021-04-19 | 2021-07-20 | 绍兴学森能源科技有限公司 | Multi-stack fuel cell hydrogen supply system and control method thereof |
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| CN113410493B (en) * | 2021-08-19 | 2021-11-05 | 北京亿华通科技股份有限公司 | Automatic monitoring device for fuel cell engine drain valve and calibration method thereof |
| CN113410493A (en) * | 2021-08-19 | 2021-09-17 | 北京亿华通科技股份有限公司 | Automatic monitoring device for fuel cell engine drain valve and calibration method thereof |
| CN114094140A (en) * | 2021-09-28 | 2022-02-25 | 东风汽车集团股份有限公司 | Hydrogen fuel cell vehicle, hydrogen supply system and hydrogen supply method thereof |
| CN114094140B (en) * | 2021-09-28 | 2024-04-16 | 东风汽车集团股份有限公司 | Hydrogen fuel cell vehicle, hydrogen supply system and hydrogen supply method thereof |
| WO2023110475A1 (en) * | 2021-12-14 | 2023-06-22 | Robert Bosch Gmbh | Method for operating a fuel cell system, and control device |
| CN114497640A (en) * | 2021-12-25 | 2022-05-13 | 安徽明天氢能科技股份有限公司 | Box dehumidification structure of fuel cell system |
| CN114497640B (en) * | 2021-12-25 | 2023-09-19 | 安徽明天氢能科技股份有限公司 | Dehumidifying structure of fuel cell system box |
| CN114792827A (en) * | 2022-05-05 | 2022-07-26 | 上海安池科技有限公司 | Self-humidifying system of proton exchange membrane fuel cell |
| WO2024056002A1 (en) * | 2022-09-14 | 2024-03-21 | 未势能源科技有限公司 | Abnormality handling method and system for hydrogen circulation pump, and electronic device |
| CN116914189A (en) * | 2023-09-13 | 2023-10-20 | 佛山市清极能源科技有限公司 | Hydrogen circulation system of fuel cell and water drainage and exhaust method |
| CN116914189B (en) * | 2023-09-13 | 2023-12-22 | 佛山市清极能源科技有限公司 | Drainage and exhaust method and fuel cell hydrogen circulation system |
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