CN106129436B - A kind of compact type intelligent humidification system for fuel cell and its air-humidification method - Google Patents
A kind of compact type intelligent humidification system for fuel cell and its air-humidification method Download PDFInfo
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- CN106129436B CN106129436B CN201610457350.XA CN201610457350A CN106129436B CN 106129436 B CN106129436 B CN 106129436B CN 201610457350 A CN201610457350 A CN 201610457350A CN 106129436 B CN106129436 B CN 106129436B
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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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
-
- 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
- H01M8/04537—Electric variables
- H01M8/04574—Current
-
- 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
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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 present invention discloses a kind of compact type intelligent humidification system for fuel cell, including solenoid directional control valve, pipeline and to fuel cell pile supply humidification gas humidifier, the humidifier includes four and the humidification region being integrated is laminated, each humidification region is made of several groups humidifying unit, the humidification channel exchanged with humidification flow of media for dry gas is arranged in humidifying unit described in every group, it is that fuel gas humidifies region that wherein A, which humidifies region, B, it is that fuel gas oxidation agent gas shares humidification region that C, which humidifies region, and it is that oxidant gas humidifies region that D, which humidifies region,.Gas humidifier is divided into 4 humidification regions by the present invention according to electric current output size and operating condition, the area for humidifying region to adjust cathode gas according to the electric current of pile output adjusts the humidity of cathode gas, remaining region is humidified for anodic gas, make humidifier all work under any operating mode, meet Fuel Cell Humidity demand, improves fuel cell humidifier humidification efficiency.
Description
Technical field
The invention belongs to fuel cell fields, and in particular to a kind of humidification system of fuel cell.
Background technology
Fuel cell is the device for converting the chemical energy of fuel gas to electric energy, its advantage is that product is water, zero-emission
It is pollution-free, low noise, transformation efficiency height.Operating temperature can be run at low ambient temperatures, be mobile power and base station power and solid
Determine the first choice of power supply.Fuel cell is made of membrane electrode, bipolar plates, collector plate, end plate and fastener.Since polymer film fires
Expect that cell monolithic voltage is low, be to be superimposed to be together in series by multiple battery units in practical applications, forms electricity
Heap.The core component of fuel cell is membrane electrode, and the heart of membrane electrode is proton exchange membrane, mainly plays isolation gas and offer
The effect of proton flow channel.
Proton exchange membrane must can be only achieved good working performance in the state of moistening.In order to make fuel cell reach
Optimum performance extends the pile service life, and fuel cell humidifying device is added in fuel cell system, makes the gas into fuel cell pile
Body humidifies.It is however noted that proton membrane is dry or overly moist can all reduce the ability that proton exchange membrane transmits proton, in turn
Influence the performance of membrane electrode.Proton membrane drying can not only cause proton transport ability to decline, and can reduce the service life of proton membrane.
In order to solve this problem, many solutions, such as 103069222 A of Publication No. CN are proposed both at home and abroad at present
A kind of disclosed fuel cell humidifier, including：Film shell with first end and second end；It is arranged in the film shell
Inner space in a branch of hollow-fibre membrane, wherein two ends of the hollow-fibre membrane are loaded into the film shell respectively
The first end and second end in；Humidity-keeping device in the inner space of the film shell is set；Placement
The first covering in the first end of the film shell, first covering include being arranged for introducing from exhaust pipe
The entrance of the nonreactive gas for the high humility put；And it is placed in the second covering in the second end of the film shell
Object, second covering include the outlet for discharging the nonreactive gas for being used for humidifying.In the documents,
In order to increase the humidity of gas, humidity-keeping device is additionally arranged in film shell, but since humidity is unadjustable, in fuel gas
Humidity is excessive, can cause cathode water logging, equally have a great impact to the performance of battery stack.Currently, the manufacture of fuel cell
Manufacturer is it is well recognized that proton membrane dries the influence to pile, but the influence to proton membrane overly moist is ignored, and one
The humidity of the promotion reaction gas of taste, cannot accurate real-time control gas humidification humidity, seriously affect the performance of pile.
In addition, traditional humidifier is fuel gas and oxidizer gas humidifier difference one humidifier of each use,
Two humidifiers are added in one fuel cell system, keeps whole system too fat to move complicated not compact, is also unfavorable for fuel cell system
The development of system densification and easy.
A kind of fuel cell humidifier as disclosed in 103915638 A of Publication No. CN, the humidifier is by several humidifications
Unit and humidifying membrane module are formed by stacking, wherein the humidifying unit is by dried noodle plate, humidifying membrane module, wet panel superposition group according to this
At one humidifying membrane module of sandwiched between two humidifying units, the humidifying membrane module and dried noodle plate, wet panel are equipped with three
Into three outlets：Fuel inlet, oxidant inlet, coolant inlet, fuel outlet, oxidant outlet, coolant outlet, wherein dry
Air inlet branch mouth and outlet branch mouth are additionally provided on panel and wet panel.In the documents, when humidifier is one, humidifier
It is only capable of humidifying the gas of a gas feed, if to humidify fuel gas and oxidant gas simultaneously, it is necessary to
A humidifier is respectively set in the both sides of pile.
A kind of fuel cell humidifier component disclosed in 104103844 A of Publication No. CN for another example, including：Shell, institute
It includes the first gas flow region that the first import, first outlet and permission first gas flow through the humidifier to state shell, described
Shell further includes the second gas flow region that the second import, second outlet and permission second gas flow through the humidifier, described
First gas has the relative humidity higher than the second gas；And pleated spacer, the pleated spacer is by described
One flow region is separated with second flowing and is left so that water flow to the second gas from the first gas, thus increases
Add the relative humidity of the second gas.In the documents to for humidifying fuel cell material and method changed
Into, but from the structure of the documents, it is apparent that the documents are made using the relative humidity difference of two kinds of gas
Water is flow to by first gas in the second gas, therefore the humidification device assembly cannot equally accomplish the fuel to fuel cell
Gas and oxidant gas humidify simultaneously, cause system too fat to move and cost increase.
Other than problem above, existing fuel cell humidifier adds humidity regulation not smart enoughization, cannot be according to fuel
The size of battery operation operating mode and pile output current voluntarily adjusts the humidity of fuel gas.Such as Publication No.
A kind of humidification regulating device of fuel cell disclosed in CN1612396 A, the device include humidity detecting element, humidity regulation portion
With humidification amount control unit, which and compared with setting value, then is passed through by detecting the humidity value of fuel cell oxidant gas
Humidity is adjusted in humidity regulation portion, and gas humidity needs external adjusting, similar this humidification system control to be all based on two
A humidifier is controlled according to pile operation demand, and due to the powerful output of pile, the moisture that cathode generates is more, matter
Moisture in sub- film is also more and more, so that the moisture into pile is tailed off, especially the humidification humidity of cathode gas requires more next
It is lower, it is based on this operating status, the humidification system for fuel cell of traditional two humidifiers of use causes waste humidification capability
Waste, cause the increase of entire fuel cell system cost.
Since the presence of the above problem limits the promotion of fuel battery performance, the yoke further hair of fuel cell
Exhibition, solves the above problems, has important role to fuel cell promotion and application.
Invention content
Goal of the invention：Present invention aims in view of the deficiencies of the prior art, provide a kind of compact type intelligent fuel cell
The size of humidification system, fuel cell operating condition and pile output current, to the fuel gas and oxygen of fuel cell
The humidity of oxidant gas carries out intelligent adjusting, improves fuel cell humidifier humidification efficiency, it is ensured that fuel cell is in best
Work output state；
Another object of the present invention is to provide a kind of air-humidification methods of above-mentioned humidification system.
Technical solution：Compact type intelligent humidification system for fuel cell of the present invention, including solenoid directional control valve, pipeline and to
The humidifier of fuel cell pile supply humidification gas, the humidifier include four and are mutually parallel and the humidification being integrated is laminated
Region, each region that humidifies are made of several groups humidifying unit, be arranged in humidifying unit described in every group for dry gas with
The humidification channel that flow of media exchanges is humidified, it is that fuel gas humidifies region that wherein A, which humidifies region, and it is fuel that B, C, which humidify region,
Gaseous oxidant gas shares humidification region, and it is that oxidant gas humidifies region that D, which humidifies region,；
The import in A humidifications region is connected to dry fuel gas inlets, and outlet passes through pipeline and fuel cell electricity
The anode of heap is connected to, and the import in D humidifications region is connected to dry oxidation agent gas feed, and outlet passes through pipeline and the fuel
The cathode of battery stack is connected to, and the import that B, C two humidifies region passes through solenoid directional control valve and dry fuel gas inlets, dry oxygen respectively
Oxidant gas inlet communication, outlet are connected to by solenoid directional control valve with the anode of the fuel cell pile, cathode.
Further preferably technical solution is the present invention, and the humidifying unit includes gas-liquid water conservancy diversion dispersion plate, is set to institute
The gas partitions dispersion plate of gas-liquid water conservancy diversion dispersion plate both sides is stated, and positioned at the gas-liquid water conservancy diversion dispersion plate and two gas partitions point
The permeable moistened membrane of permeable trapping between falling apart；
The both sides of the gas-liquid water conservancy diversion dispersion plate are both provided with Gas-Liquid Dispersion flow field, are distributed in the Gas-Liquid Dispersion flow field
Humidification water or humidifier；It is provided with gas flowfield on the gas partitions dispersion plate, fuel gas is distributed in the gas flowfield
Body or oxidant gas；It is separated by the permeable moistened membrane between gas flowfield described in the Gas-Liquid Dispersion flow field and both sides.
Preferably, respectively the interconnected humidification formed in each humidification region of the gas flowfield of humidifying unit is logical in humidification region
Road, the Gas-Liquid Dispersion flow field of four humidification region whole humidifying units are connected to the medium channel to be formed for the humidification medium that circulates.
Preferably, four humidification area levels, which stack, sets, and both ends are compressed by the end plate with buffer unit, and by solid
Determine part to fix.
Preferably, wherein being provided with dry fuel gas inlets, dry oxidation agent gas feed and humidification medium in a side end panel
It exports, wet fuel gas vent, wet oxygen agent gas vent and humidification medium entrance is provided in another side end panel；The humidification
It is connected to by the medium channel between medium entrance and humidification media outlet.
Preferably, the Gas-Liquid Dispersion flow field and gas flowfield are serpentine flow, straight trip flow field, dotted flow field, combined-flow
Field any of which.
Preferably, the gas-liquid water conservancy diversion dispersion plate and gas partitions dispersion plate, are made of metal or nonmetallic materials.
Preferably, between the import and dry fuel gas inlets in A humidification region and the import in D humidifications region
It is also respectively provided with shut-off valve between being connected to dry oxidation agent gas feed.
The air-humidification method of compact type intelligent humidification system for fuel cell of the present invention is,
（1）Humidification step when pile output current is ascending：
A, as 0≤I of pile output current≤nA, drying fuel gas enters humidifier A by shut-off valve and humidifies region,
It is humidified in the humidification channel that A humidifies region, the fuel gas after humidification is directly entered the anode of fuel cell pile；Oxidant
Gas enters the tri- humidification regions humidifier B, C, D by shut-off valve and is humidified, and the oxidant gas after humidification passes through electromagnetism
Reversal valve enters the cathode of fuel cell pile；
B, as pile output current nA ＜ I≤mA, drying fuel gas enters humidifier A, B two by shut-off valve and humidifies
Region, A humidify region and are humidified directly to fuel gas, and B humidifications region is switched to fuel gas pipeline by solenoid directional control valve, gives
Fuel gas humidifies, and the fuel gas of moistening enters back into the anode of fuel cell pile；Oxidant gas is direct by shut-off valve
It is opened into the humidification regions humidifier C, D and oxidant gas bypass, bypass ratio valve, C, D two humidifies region oxygen supply agent
Gas humidification, the oxidant gas after humidification summarize with bypass oxidant gas into fuel cell pile after solenoid directional control valve
Cathode；
C, as pile output current mA ＜ I≤kA, drying fuel gas enters humidifier A, B, C tri- by shut-off valve and adds
Wet zone, A, B humidify region and are humidified directly to fuel gas, and C humidifications region is switched to fuel gas pipe by solenoid directional control valve
Road, humidifies to fuel gas, and the fuel gas of moistening enters back into the anode of fuel cell pile；Oxidant gas passes through shut-off valve
It is directly entered the humidification regions humidifier D and oxidant gas bypass, oxidant gas bypass ratio valve is opened, D humidifies region
Oxygen supply agent gas humidification, oxidant gas and bypass oxidant gas after humidification summarize the moon into fuel cell pile
Pole；
（2）Humidification step when pile output current is descending：
D, as pile output current nA ＜ I≤mA, drying fuel gas enters humidifier A, B by shut-off valve and humidifies area
Domain is humidified to fuel gas, and the fuel gas of moistening enters the anode of fuel cell pile；Oxidant gas is straight by shut-off valve
It taps into the humidification regions humidifier D and oxidant gas bypass, bypass oxidant gas proportioning valve is opened, and it is logical that C humidifies region
It crosses solenoid directional control valve and is switched to oxidant gas pipeline, oxygen supply agent gas humidification, the oxidant gas after humidification is changed through electromagnetism
Enter the cathode of fuel cell pile after to valve and bypass oxidant gas mixing.
E, as 0 ＜ I≤nA of pile output current, drying fuel gas enters humidifier A by shut-off valve and humidifies region
It is humidified to fuel gas, the fuel gas of moistening enters the anode of fuel cell pile；Oxidant gas is direct by shut-off valve
Region is humidified into humidifier C, D, bypass oxidant gas proportioning valve is opened, and B humidifications region is switched to by solenoid directional control valve
Oxidant gas pipeline, oxygen supply agent gas humidification, the oxidant gas after humidification enter fuel cell electricity through solenoid directional control valve
The cathode of heap, bypass oxidant gas proportioning valve are closed；
Wherein I is pile output current, 0 ＜ n ＜ m ＜ k.
Preferably, when being switched to fuel gas pipeline, solenoid directional control valve first changes the solenoid directional control valve in the humidifications of B, C two region
The fuel gas of humidification is first emptied into the several seconds into fuel gas collection case to emptying pattern, waits for that B, C two humidifies the oxygen in region
After oxidant gas is drained, the fuel gas of moistening enters back into the anode of fuel cell pile；B, C two humidifies the electromagnetic switch in region
For valve when being switched to oxidant gas pipeline, solenoid directional control valve first changes to emptying pattern by the oxidant gas of humidification first to system
The outer emptying several seconds, after the oxidant gas in the humidifications of B, C two region is drained, the oxidant gas of moistening enters back into fuel cell
The cathode of pile.
The present invention operation principle be：Fuel cell initial start stage operating mode sets relevant parameter, dry fuel gas
Body and oxidant gas enter humidifier from fuel gas air admission hole and oxidant gas air admission hole respectively, and flow is from airflow direction
Direction is entered in humidifier, permeable moistened membrane can only penetrate water, cannot penetrate gas, water pass through diffusion and moistened membrane
The differential water pressures of both sides penetrate into dry gas side, and to be humidified to gas, the gas after humidification enters in pile.
Advantageous effect：（1）Gas humidifier is divided into 4 humidification areas by the present invention according to electric current output size and operating condition
Domain, the area for humidifying region to adjust cathode gas according to the electric current of pile output adjust the humidity of cathode gas, will be remaining
Region for anodic gas humidify, make humidifier under any operating mode all work, meet Fuel Cell Humidity demand, carry
High fuel cell humidifier humidification efficiency, controlled and humidified by system zoning design more effectively control the humidity of gas humidification with
More intelligent raising humidifier utilization rate is conducive to stabilization and the raising of Performance data, improves fuel battery performance and service life；Together
When one humidifier humidify two kinds of gases simultaneously, keep fuel cell system more compact, be conducive to the densification of fuel cell system,
Easy develops；
（2）The fuel battery humidifying unit of the present invention is by gas-liquid water conservancy diversion dispersion plate, gas partitions dispersion plate and permeable trapping
Permeable moistened membrane composition, the both sides of gas-liquid water conservancy diversion dispersion plate are distributed with Gas-Liquid Dispersion flow field, and one group of humidifying unit can be simultaneously
It is humidified to the fuel gas and oxidant gas of fuel cell, reduces the humidifier quantity of fuel cell system, reduce combustion
Expect battery system volume, keep system structure compact, reduces production cost；Meanwhile water is in the Gas-Liquid Dispersion of gas-liquid water conservancy diversion dispersion plate
It is uniformly distributed in flow field, dry gas is humidified by diffusion and the differential water pressures osmosis of moistened membrane both sides, it can be according to reality
Border needs, and the width and depth and the gentle flow quantity of the shape in flow field of adjusting gas-liquid water conservancy diversion dispersion plate both sides flow field runner come
The humidity for controlling gas humidification, avoids fuel gas and oxidant gas humidity excessive, causes cathode water logging, damages fuel cell
Pile；
（3）The present invention humidifies the end plate of the both ends setting with pressure buffer in region at 4, advantageously reduces due to temperature
The probability of humidifier size caused by variation and the leakage and interior leakage caused by pressure change, while the gas of internal humidifying unit
Pressure drop is small, at low cost, and mating convenient for being done for fuel cell mass, fastener more can guarantee the appearance and size of humidifier, more can
It is integrated convenient for fuel cell system moduleization.
Description of the drawings
Fig. 1 is the structural schematic diagram of humidifier of the present invention；
Fig. 2 is the sectional view of humidifier of the present invention；
Fig. 3 is the structural schematic diagram of humidifying unit of the present invention；
Fig. 4 is the piping arrangement of humidifier of the present invention；
Wherein 1- humidifiers, 2- end plates, 3- fixing pieces, 11- gas-liquid water conservancy diversion dispersion plate, 12- gas partitions dispersion plate, 13-
Permeable moistened membrane, 1a- A humidifications region, 1b- B humidifications region, 1c- C humidifications region, 1d-D humidifications region, 1e- media are logical
Road, 20- humidification media outlet, 21- humidification medium entrance, the areas 22-A do fuel gas inlets, the public dry gas in the areas 23- B into
Mouth, the public dry gas import in the areas 24- C, the dry oxidation agent gas feed of the areas 25- D, the areas 26-A wet fuel gas vent, the areas 27- B
Public humid gas outlet, the public humid gas outlet in the areas 28- C, the wet oxygen agent gas feed of the areas 29- D.
Specific implementation mode
Technical solution of the present invention is described in detail below by attached drawing, but protection scope of the present invention is not limited to
The embodiment.
Embodiment：A kind of compact type intelligent humidification system for fuel cell, including fuel cell pile and to fuel cell electricity
The humidifier 1 of heap supply humidification gas.As shown in Figure 1, humidifier 1 includes four humidification areas being integrated that are mutually parallel and are laminated
Domain A humidifies region 1a, B humidification region 1b, C humidification region 1c and D and humidifies region 1d, and both ends are by the end plate 2 with buffer unit
It compresses, and is fixed by fixing piece 3, wherein being provided with the areas A in a side end panel 2 does fuel gas inlets 22, the public dry gas in the areas B
Import 23, the public dry gas import 24 in the areas C, the areas D dry oxidation agent gas feed 25 and humidification media outlet 20, another side end panel 2
On be provided with the public humid gas outlet 27 in the areas A wet fuel gas vent 26, the areas B, the public humid gas outlet 28 in the areas C, the areas D wet oxidation
Agent gas feed 29 and humidification media outlet 21；Connected by medium channel between humidification medium entrance 21 and humidification media outlet 20
It is logical.
Each humidification region is made of several groups humidifying unit, and humidifying unit includes gas-liquid water conservancy diversion dispersion plate 11, is set to
The gas partitions dispersion plate 12 of 11 both sides of gas-liquid water conservancy diversion dispersion plate, and positioned at gas-liquid water conservancy diversion dispersion plate 12 and two gas partitions point
The permeable moistened membrane 13 for the permeable trapping fallen apart between 11；The both sides of gas-liquid water conservancy diversion dispersion plate 11 are both provided with Gas-Liquid Dispersion stream
, humidification water or humidifier is distributed in Gas-Liquid Dispersion flow field；Gas flowfield, gas stream are provided on gas partitions dispersion plate 12
Fuel gas or oxidant gas is distributed in；Between Gas-Liquid Dispersion flow field and both sides gas flowfield by permeable moistened membrane 13 every
It opens.Gas-Liquid Dispersion flow field and gas flowfield are serpentine flow, straight trip flow field, dotted flow field, complex wake any of which.Gas
Liquid water conservancy diversion dispersion plate 11 and gas partitions dispersion plate 12 are made of metal or nonmetallic materials.
The gas flowfield of humidifying unit, which is interconnected, in each humidification region forms each humidification channel humidified in region, four
The Gas-Liquid Dispersion flow field of humidification region whole humidifying unit is connected to the medium channel 1e to be formed for the humidification medium that circulates.
In four humidification regions, it is that fuel gas humidifies region that A, which humidifies region 1a, and it is fuel gas that B, C, which humidify region 1b, 1c,
Body oxidant gas shares humidification region, and it is that oxidant gas humidifies region that D, which humidifies region 1d,；The import that A humidifies region 1a is logical
It crosses shut-off valve and the areas A and does fuel gas inlets 22 and be connected to, outlet is connected to the areas A wet fuel gas vent 26, D humidifications region 1d's
Import is connected to by shut-off valve with the areas D dry oxidation agent gas feed 25, and outlet is connected to the areas D wet oxygen agent gas feed 29, B, C
Two humidification region 1b, 1c import respectively by the public dry gas import 23 of solenoid directional control valve and the areas B, the public dry gas in the areas C into
Mouth 24 is connected to, and outlet is exported 28 and be connected to by solenoid directional control valve with the public humid gas outlet 27 in the areas B, the public humid gas in the areas C.
The air-humidification method in four humidification regions of humidifier, including two sections of humidification steps,
（1）Humidification step when pile output current is ascending：
A, as 0≤I of pile output current≤nA, drying fuel gas enters humidifier A by shut-off valve and humidifies region,
It is humidified in the humidification channel that A humidifies region, the fuel gas after humidification is directly entered the anode of fuel cell pile；Oxidant
Gas enters the tri- humidification regions humidifier B, C, D by shut-off valve and is humidified, and the oxidant gas after humidification passes through electromagnetism
Reversal valve enters the cathode of fuel cell pile；
B, as pile output current nA ＜ I≤mA, drying fuel gas enters humidifier A, B two by shut-off valve and humidifies
Region, A humidify region and are humidified directly to fuel gas, and B humidifications region is switched to fuel gas pipeline by solenoid directional control valve, gives
Fuel gas humidifies, and the fuel gas of moistening enters back into the anode of fuel cell pile；Oxidant gas is direct by shut-off valve
It is opened into the humidification regions humidifier C, D and oxidant gas bypass, bypass ratio valve, C, D two humidifies region oxygen supply agent
Gas humidification, the oxidant gas after humidification summarize with bypass oxidant gas into fuel cell pile after solenoid directional control valve
Cathode；
C, as pile output current mA ＜ I≤kA, drying fuel gas enters humidifier A, B, C tri- by shut-off valve and adds
Wet zone, A, B humidify region and are humidified directly to fuel gas, and C humidifications region is switched to fuel gas pipe by solenoid directional control valve
Road, humidifies to fuel gas, and the fuel gas of moistening enters back into the anode of fuel cell pile；Oxidant gas passes through shut-off valve
It is directly entered the humidification regions humidifier D and oxidant gas bypass, oxidant gas bypass ratio valve is opened, D humidifies region
Oxygen supply agent gas humidification, oxidant gas and bypass oxidant gas after humidification summarize the moon into fuel cell pile
Pole；
（2）Humidification step when pile output current is descending：
D, as pile output current nA ＜ I≤mA, drying fuel gas enters humidifier A, B by shut-off valve and humidifies area
Domain is humidified to fuel gas, and the fuel gas of moistening enters the anode of fuel cell pile；Oxidant gas is straight by shut-off valve
It taps into the humidification regions humidifier D and oxidant gas bypass, bypass oxidant gas proportioning valve is opened, and it is logical that C humidifies region
It crosses solenoid directional control valve and is switched to oxidant gas pipeline, oxygen supply agent gas humidification, the oxidant gas after humidification is changed through electromagnetism
Enter the cathode of fuel cell pile after to valve and bypass oxidant gas mixing.
E, as 0 ＜ I≤nA of pile output current, drying fuel gas enters humidifier A by shut-off valve and humidifies region
It is humidified to fuel gas, the fuel gas of moistening enters the anode of fuel cell pile；Oxidant gas is direct by shut-off valve
Region is humidified into humidifier C, D, bypass oxidant gas proportioning valve is opened, and B humidifications region is switched to by solenoid directional control valve
Oxidant gas pipeline, oxygen supply agent gas humidification, the oxidant gas after humidification enter fuel cell electricity through solenoid directional control valve
The cathode of heap, bypass oxidant gas proportioning valve are closed；
Wherein I is pile output current, and the solenoid directional control valve in 0 ＜ n ＜ m ＜ k, B, C two humidifications region is being switched to fuel
When gas piping, solenoid directional control valve first changes to emptying pattern and the fuel gas of humidification is first emptied number into fuel gas collection case
Second, after the oxidant gas in the humidifications of B, C two region is drained, the fuel gas of moistening enters back into the sun of fuel cell pile
Pole；B, for the solenoid directional control valve in the humidifications of C two region when being switched to oxidant gas pipeline, solenoid directional control valve first changes to emptying pattern
The oxidant gas of humidification is first emptied into the several seconds to outside system, after the oxidant gas in the humidifications of B, C two region is drained, moistening
Oxidant gas enter back into the cathode of fuel cell pile.
As described above, although the present invention has been indicated and described with reference to specific preferred embodiment, must not explain
For the limitation to invention itself.It without prejudice to the spirit and scope of the invention as defined in the appended claims, can be right
Various changes can be made in the form and details for it.
Claims (2)
1. a kind of air-humidification method of compact type intelligent humidification system for fuel cell, compact type intelligent fuel battery humidifying system
System, including solenoid directional control valve, pipeline and the humidifier that humidification gas is supplied to fuel cell pile, the humidifier include four
It is mutually parallel and the humidification region being integrated is laminated, each region that humidifies is made of several groups humidifying unit, is humidified described in every group
The humidification channel exchanged with humidification flow of media for dry gas is arranged in unit, it is fuel gas that wherein A, which humidifies region,
Region is humidified, it is that fuel gas oxidation agent gas shares humidification region that B, C, which humidify region, and D humidifications region adds for oxidant gas
Wet zone；
The import in A humidifications region is connected to dry fuel gas inlets, and outlet passes through pipeline and the fuel cell pile
Anode is connected to, and the import in D humidifications region is connected to dry oxidation agent gas feed, and outlet passes through pipeline and the fuel cell
The cathode of pile is connected to, and the import that B, C two humidifies region passes through solenoid directional control valve and dry fuel gas inlets, dry oxidation agent respectively
Gas feed is connected to, and outlet is connected to by solenoid directional control valve with the anode of the fuel cell pile, cathode；
It is characterized in that：
（1）Humidification step when pile output current is ascending：
A, as 0≤I of pile output current≤nA, drying fuel gas enters humidifier A by shut-off valve and humidifies region, in A
It humidifies in the humidification channel in region and humidifies, the fuel gas after humidification is directly entered the anode of fuel cell pile；Oxidant gas
Body enters the tri- humidification regions humidifier B, C, D by shut-off valve and is humidified, and the oxidant gas after humidification is changed by electromagnetism
Enter the cathode of fuel cell pile to valve；
B, as pile output current nA ＜ I≤mA, drying fuel gas enters humidifier A, B two by shut-off valve and humidifies area
Domain, A humidify region and are humidified directly to fuel gas, and B humidifications region is switched to fuel gas pipeline by solenoid directional control valve, to combustion
Expect that gas humidification, the fuel gas of moistening enter back into the anode of fuel cell pile；Oxidant gas by shut-off valve directly into
Enter the humidification regions humidifier C, D and oxidant gas bypass, bypass ratio valve are opened, C, D two humidifies region oxygen supply agent gas
Body humidifies, and the oxidant gas after humidification summarizes with bypass oxidant gas into fuel cell pile after solenoid directional control valve
Cathode；
C, as pile output current mA ＜ I≤kA, drying fuel gas enters humidifier A, B, C tri- by shut-off valve and humidifies area
Domain, A, B humidify region and are humidified directly to fuel gas, and C humidifications region is switched to fuel gas pipeline by solenoid directional control valve, gives
Fuel gas humidifies, and the fuel gas of moistening enters back into the anode of fuel cell pile；Oxidant gas is direct by shut-off valve
It is opened into the humidification regions humidifier D and oxidant gas bypass, oxidant gas bypass ratio valve, D humidifies region oxygen supply
Oxidant gas humidifies, and the oxidant gas and bypass oxidant gas after humidification summarize the cathode into fuel cell pile；
（2）Humidification step when pile output current is descending：
D, as pile output current nA ＜ I≤mA, drying fuel gas by shut-off valve enter the humidification region humidifier A, B to
Fuel gas humidifies, and the fuel gas of moistening enters the anode of fuel cell pile；Oxidant gas by shut-off valve directly into
Enter the humidification regions humidifier D and oxidant gas bypass, bypass oxidant gas proportioning valve is opened, and C humidifications region passes through electricity
Magnetic reversal valve is switched to oxidant gas pipeline, oxygen supply agent gas humidification, and the oxidant gas after humidification is through solenoid directional control valve
With the cathode for entering fuel cell pile after bypass oxidant gas mixing；
E, as 0 ＜ I≤nA of pile output current, drying fuel gas enters the humidification regions humidifier A to combustion by shut-off valve
Expect that gas humidification, the fuel gas of moistening enter the anode of fuel cell pile；Oxidant gas is directly entered by shut-off valve
Humidifier C, D humidify region, and bypass oxidant gas proportioning valve is opened, and B humidifications region is switched to oxidation by solenoid directional control valve
Agent gas piping, oxygen supply agent gas humidification, the oxidant gas after humidification enter fuel cell pile through solenoid directional control valve
Cathode, bypass oxidant gas proportioning valve are closed；
Wherein I is pile output current, 0 ＜ nA ＜ mA ＜ kA.
2. the air-humidification method of compact type intelligent humidification system for fuel cell according to claim 1, which is characterized in that B, C
For the solenoid directional control valve in two humidification regions when being switched to fuel gas pipeline, solenoid directional control valve first changes to emptying pattern by humidification
Fuel gas first empties the several seconds into fuel gas collection case, after the oxidant gas in the humidifications of B, C two region is drained, moistening
Fuel gas enter back into the anode of fuel cell pile；B, the solenoid directional control valve in the humidifications of C two region is being switched to oxidant gas
When body pipeline, solenoid directional control valve first changes to emptying pattern and the oxidant gas of humidification is first emptied the several seconds to outside system, waits for B, C two
Humidify region in oxidant gas it is drained after, the oxidant gas of moistening enters back into the cathode of fuel cell pile.
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| CN106784929B (en) * | 2016-12-07 | 2020-04-28 | 同济大学 | Humidifier for fuel cell |
| CN109378505B (en) * | 2018-10-18 | 2024-03-22 | 南通博凡能源有限公司 | Humidifier assembly |
| CN109378504B (en) * | 2018-12-05 | 2024-03-26 | 江苏氢电新能源有限公司 | Pile end plate with gas pressure buffering and humidifying functions |
| CN110416578B (en) * | 2019-02-01 | 2020-04-28 | 清华大学 | Humidification method for fuel cell, computer equipment and storage medium |
| CA3147747A1 (en) * | 2019-07-16 | 2021-01-21 | Ch Innovations Inc. | Compact fuel cell modules and assemblies |
| CN110854413B (en) * | 2019-10-14 | 2021-05-07 | 中国北方发动机研究所(天津) | Adjustable humidifier structure, inter-cooling humidifier structure and battery system framework structure |
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| US7037610B2 (en) * | 2002-09-18 | 2006-05-02 | Modine Manufacturing Company | Humidification of reactant streams in fuel cells |
| JP3963367B2 (en) * | 2002-11-14 | 2007-08-22 | 本田技研工業株式会社 | Humidification unit |
| JP4300346B2 (en) * | 2002-12-18 | 2009-07-22 | 日産自動車株式会社 | Fuel cell system |
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| CN1770534A (en) * | 2004-11-02 | 2006-05-10 | 上海神力科技有限公司 | Fuel cell with hydrogen gas air temperature and humidity adjusting device |
| CN101425587A (en) * | 2007-10-30 | 2009-05-06 | 上海神力科技有限公司 | Integrated apparatus used for fuel cell humidifying |
| CN205752395U (en) * | 2016-06-22 | 2016-11-30 | 江苏绿遥燃料电池系统制造有限公司 | A kind of compact type intelligent humidification system for fuel cell |
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Address after: Suzhou City, Jiangsu Province, Yushan Town, Kunshan City, 215313 Yu Yang Road No. 299, room 3 Applicant after: Jiangsu hydrogen power new energy Co., Ltd. Address before: 215313, Jiangsu, Kunshan City, Yushan Town, Yu Yang Road, No. 299, Ping An International Industrial Park A building, Applicant before: Jiangsu Lv Yao fuel cell system Manufacturing Co., Ltd |
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