CN205752395U - A kind of compact type intelligent humidification system for fuel cell - Google Patents
A kind of compact type intelligent humidification system for fuel cell Download PDFInfo
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- CN205752395U CN205752395U CN201620625237.3U CN201620625237U CN205752395U CN 205752395 U CN205752395 U CN 205752395U CN 201620625237 U CN201620625237 U CN 201620625237U CN 205752395 U CN205752395 U CN 205752395U
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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 open a kind of compact type intelligent humidification system for fuel cell of this utility model, including solenoid directional control valve, pipeline and the humidifier to fuel cell pile supply humidification gas, described humidifier include four be laminated for one add wet zone, each wet zone that adds is made up of some groups of humidifying unit, all be disposed with in often organizing described humidifying unit for dry gas with add humid medium circulation exchange add wet channel, wherein A adds wet zone is that fuel gas adds wet zone, B, C add wet zone be fuel gas oxidation agent gas share add wet zone, it is that oxidant gas adds wet zone that D adds wet zone.Gas humidifier is divided into 4 adds wet zone according to electric current output size and operating condition by this utility model, electric current according to pile output regulates cathode gas and adds the area of wet zone and regulate the humidity of cathode gas, remaining region is used for anodic gas humidification, humidifier is made the most all to work under any operating mode, meet Fuel Cell Humidity demand, improve fuel cell humidifier humidification efficiency.
Description
Technical field
The invention belongs to fuel cell field, be specifically related to the humidification system of a kind of fuel cell.
Background technology
Fuel cell is the device that the chemical energy of fuel gas is converted into electric energy, its advantage be product be water, zero-emission
Pollution-free, noise is low, and transformation efficiency is high.Operating temperature can be run at low ambient temperatures, is portable power source and base station power and solid
Determine the first-selection of power supply.Fuel cell is made up of membrane electrode, bipolar plates, collector plate, end plate and securing member.Owing to polymeric film fires
Material cell monolithic voltage is low, in actual applications, is to be superimposed by multiple battery units to be together in series, and forms electricity
Heap.The core component of fuel cell is membrane electrode, and the heart of membrane electrode is PEM, mainly plays isolation gas and offer
The effect of proton flow channel.
PEM must can be only achieved good service behaviour when moistening.In order to make fuel cell reach
Optimum performance, extends the pile life-span, adds fuel cell humidifying device at fuel cell system, makes the gas of entrance fuel cell pile
Body humidifies.It is however noted that, proton membrane is dried or overly moist all can reduce PEM and transmit the ability of proton, and then
Affect the performance of membrane electrode.Proton membrane is dried and proton transport ability not only can be caused to decline, and can reduce the life-span of proton membrane.
In order to solve this problem, it is proposed a lot of solutions, such as Publication No. CN 103069222 A the most both at home and abroad
Disclosed a kind of fuel cell humidifier, including: there is the film shell of the first end and the second end；It is arranged on described film shell
Inner space in a branch of hollow-fibre membrane, two ends of wherein said hollow-fibre membrane are loaded into described film shell respectively
Described first end and the second end in；It is arranged on the humidity-keeping device in the described inner space of described film shell；Dispose
The first covering on described first end of described film shell, described first covering includes for introducing from aerofluxus bank of tubes
The entrance of the nonreactive gas of the high humility put；And the second covering being placed on described second end of described film shell
Thing, described second covering includes the outlet for discharging the described nonreactive gas for humidifying.In this documents,
In order to increase the humidity of gas, in film shell, it is additionally arranged humidity-keeping device, but owing to humidity is unadjustable, in fuel gas
Humidity is excessive, can cause negative electrode water logging, have a great impact the performance of battery pile equally.At present, the manufacture of fuel cell
Manufacturer is it is well recognized that proton membrane is dried the impact on pile, but the impact on proton membrane overly moist is left in the basket, and one
The humidity promoting reacting gas of taste, it is impossible to control the humidity of gas humidification the most in real time, have a strong impact on the performance of pile.
It addition, traditional humidifier is fuel gas and oxidizer gas humidifier one humidifier of each use respectively,
One fuel cell system adds two humidifiers, makes whole system too fat to move numerous and diverse the compactest, be also unfavorable for fuel cell system
System densification and the development of easy.
A kind of fuel cell humidifier as disclosed in Publication No. CN 103915638 A, this humidifier is by some humidifications
Unit and humidifying membrane module are formed by stacking, and wherein said humidifying unit is by dried noodle plate, humidifying membrane module, wetted surface plate superposition group according to this
Becoming, sandwiched one humidifying membrane module between two described humidifying unit, described humidifying membrane module and dried noodle plate, wetted surface plate are provided with three
Enter three outlets: fuel inlet, oxidant inlet, coolant inlet, fuel outlet, oxidant outlet, coolant outlet, Qi Zhonggan
It is additionally provided with air inlet on panel and wetted surface plate and props up mouth and a mouth of giving vent to anger.In this documents, when humidifier is one, humidifier
It is only capable of the gas of a gas feed is humidified, if fuel gas and oxidant gas to be humidified simultaneously, it is necessary to
The both sides of pile are respectively provided with a humidifier.
A kind of fuel cell humidifier assembly disclosed in Publication No. CN 104103844 A for another example, including: housing, institute
State housing include the first import, the first outlet and allow the first gas to flow through the first gas flow region of described humidifier, described
Housing also includes the second import, the second outlet and allows the second gas to flow through the second gas flow region of described humidifier, described
First gas has the relative humidity higher than described second gas；And pleated spacer, described pleated spacer is by described
One flow region separates with described second flowing and leaves so that water flow to described second gas from described first gas, thus increases
Add the relative humidity of described second gas.Material and method for humidifying fuel cell is changed by this documents
Enter, but from the structure of this documents it is apparent that this documents utilizes the relative humidity difference of two kinds of gases, make
Water is flow in described second gas by the first gas, and therefore this humidifier assembly can not accomplish the fuel to fuel cell equally
Gas and oxidant gas humidify simultaneously, cause system too fat to move and cost increase.
In addition to problem above, it is the most intelligent that existing fuel cell humidifier adds humidity regulation, it is impossible to according to fuel
The size of battery operation operating mode and pile output electric current regulates the humidity of fuel gas voluntarily.Such as Publication No.
The humidification regulating device of a kind of fuel cell disclosed in CN1612396 A, this device includes humidity detecting element, humidity regulation portion
With add moisture control portion, this device, by detecting the humidity value of fuel cell oxidant gas, and compares with setting value, then passes through
Humidity is adjusted by humidity regulation portion, and gas humidity needs outside regulation, similar this humidification system to control to be all based on two
Individual humidifier is controlled according to pile operation demand, and due to the powerful output of pile, the moisture that negative electrode produces is more, matter
Moisture in sub-film also gets more and more, and makes the moisture of entrance pile tail off, and the especially humidification humidity requirement of cathode gas more comes
The lowest, based on this running status, the humidification system for fuel cell of traditional two humidifiers of use causes waste humidification capability
Waste, cause the increase of whole fuel cell system cost.
Owing to the existence of the problems referred to above limits the lifting of fuel battery performance, sending out further of yoke fuel cell
Exhibition, solves the problems referred to above, fuel cell promotion and application is had important effect.
Summary of the invention
Goal of the invention: present invention aim at for the deficiencies in the prior art, it is provided that a kind of compact type intelligent fuel cell
Humidification system, fuel cell operating condition and the size of pile output electric current, fuel gas and the oxygen to fuel cell
The humidity of oxidant gas carries out intelligent regulation, improves fuel cell humidifier humidification efficiency, it is ensured that fuel cell is in most preferably
Work output state；
Another object of the present invention is to provide the air-humidification method of a kind of above-mentioned humidification system.
Technical scheme: 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, described humidifier includes the humidification of four one that are parallel to each other and are laminated for
Region, each wet zone that adds is made up of some groups of humidifying unit, be all disposed with in often organizing described humidifying unit for dry gas with
Add humid medium circulation exchange adds wet channel, and wherein A adds wet zone is that fuel gas adds wet zone, and it is fuel that B, C add wet zone
Gaseous oxidant gas shares and adds wet zone, and it is that oxidant gas adds wet zone that D adds wet zone；
Described A adds the import of wet zone and connects with dry fuel gas inlets, exports by pipeline and described fuel cell electricity
The anode connection of heap, described D adds the import of wet zone and connects with dry oxidation agent gas feed, exports by pipeline and described fuel
The negative electrode connection of battery pile, B, C two adds the import of wet zone respectively by solenoid directional control valve and dry fuel gas inlets, dry oxygen
Oxidant gas inlet communication, outlet is connected with anode, the negative electrode of described fuel cell pile by solenoid directional control valve.
The present invention further preferably technical scheme is, described humidifying unit includes gas-liquid water conservancy diversion dispersion plate, is arranged at institute
State the gas partitions dispersion plate of gas-liquid water conservancy diversion dispersion plate both sides, and be positioned at described gas-liquid water conservancy diversion dispersion plate and two gas partitions are divided
The permeable moistened membrane of the permeable trapping between falling apart；
The both sides of described gas-liquid water conservancy diversion dispersion plate are provided with Gas-Liquid Dispersion flow field, are distributed in described Gas-Liquid Dispersion flow field
Humidification water or humidifier；It is provided with gas flowfield on described gas partitions dispersion plate, in described gas flowfield, fuel gas is distributed
Body or oxidant gas；Separated by described permeable moistened membrane between gas flowfield described in described Gas-Liquid Dispersion flow field and both sides.
Preferably, respectively add the gas flowfield of humidifying unit in wet zone to be interconnected and form the humidification respectively adding in wet zone and lead to
Road, four Gas-Liquid Dispersion flow field connections adding the whole humidifying unit of wet zone form the medium channel adding humid medium for circulation.
Preferably, four described humidification area level stack and put, and two ends are compressed by the end plate with buffer unit, and by solid
Locking member is fixed.
Preferably, wherein it is provided with dry fuel gas inlets, dry oxidation agent gas feed and adds humid medium in a side end panel
Outlet, opposite side end plate is provided with wet fuel gas outlet, wet oxygen agent gas outlet and humidification medium entrance；Described humidification
Connected by described medium channel between medium entrance and humidification media outlet.
Preferably, described Gas-Liquid Dispersion flow field and gas flowfield are serpentine flow, craspedodrome flow field, point-like flow field, combined-flow
Field any of which.
Preferably, described gas-liquid water conservancy diversion dispersion plate and gas partitions dispersion plate, made by metal or nonmetallic materials.
Preferably, described A adds between the import of wet zone and dry fuel gas inlets and described D adds the import of wet zone
It is also respectively provided with shut-off valve between connecting with dry oxidation agent gas feed.
The air-humidification method of the compact type intelligent humidification system for fuel cell of the present invention is,
(1) the humidification step when pile output electric current is ascending:
A, when pile output electric current 0≤I≤nA time, drying fuel gas through shut-off valve enter humidifier A add wet zone,
Adding adding in wet channel of wet zone at A to humidify, the fuel gas after humidification is directly entered the anode of fuel cell pile；Oxidant
Gas adds wet zone through shut-off valve entrance humidifier B, C, D tri-and humidifies, and the oxidant gas after humidification passes through electromagnetism
Reversal valve enters the negative electrode of fuel cell pile；
B, when pile output electric current n ＜ I≤mA time, drying fuel gas through shut-off valve enter humidifier A, B two humidify
Region, A adds wet zone and humidifies directly to fuel gas, and B adds wet zone and is switched to fuel gas pipeline by solenoid directional control valve, gives
Fuel gas humidifies, and moistening fuel gas enters back into the anode of fuel cell pile；Oxidant gas is direct by shut-off valve
Entering humidifier C, D and add wet zone and oxidant gas bypass, bypass ratio valve is opened, and C, D two adds wet zone oxidizing agent
Gas humidification, the oxidant gas after humidification is after solenoid directional control valve and bypass oxidant gas collects entrance fuel cell pile
Negative electrode；
C, when pile output electric current m ＜ I≤kA time, drying fuel gas through shut-off valve enter humidifier A, B, C Acanthopanan trifoliatus (L.) Merr.
Wet zone, A, B add wet zone directly to fuel gas humidify, C adds wet zone and is switched to fuel gas pipe by solenoid directional control valve
Road, humidifies to fuel gas, and moistening fuel gas enters back into the anode of fuel cell pile；Oxidant gas passes through shut-off valve
Being directly entered humidifier D and add wet zone and oxidant gas bypass, oxidant gas bypass ratio valve is opened, and D adds wet zone
Oxygen supply agent gas humidification, the oxidant gas after humidification and bypass oxidant gas collect the moon entering fuel cell pile
Pole；
(2) the humidification step when pile output electric current is descending:
D, when pile output electric current n ＜ I≤mA time, drying fuel gas through shut-off valve enter humidifier A, B humidify district
Territory humidifies to fuel gas, and moistening fuel gas enters the anode of fuel cell pile；Oxidant gas is straight by shut-off valve
Tapping into and add wet zone and oxidant gas bypass into humidifier D, bypass oxidant gas proportioning valve is opened, and C adds wet zone and leads to
Crossing solenoid directional control valve and be switched to oxidant gas pipeline, oxygen supply agent gas humidification, the oxidant gas after humidification changes through electromagnetism
The negative electrode of fuel cell pile is entered after valve and bypass oxidant gas mixing.
E, when pile output electric current 0 ＜ I≤nA time, drying fuel gas through shut-off valve enter humidifier A add wet zone
Humidifying to fuel gas, moistening fuel gas enters the anode of fuel cell pile；Oxidant gas is direct by shut-off valve
Entering humidifier C, D and add wet zone, bypass oxidant gas proportioning valve is opened, and B is added wet zone and is switched to by solenoid directional control valve
Oxidant gas pipeline, oxygen supply agent gas humidification, the oxidant gas after humidification enters fuel cell electricity through solenoid directional control valve
The negative electrode of heap, bypass oxidant gas proportioning valve cuts out；
Wherein I is that pile exports electric current, 0 ＜ n ＜ m ＜ k.
Preferably, B, C two adds the solenoid directional control valve of wet zone when being switched to fuel gas pipeline, and solenoid directional control valve first changes
To emptying pattern, the fuel gas of humidification is first emptied the several seconds in fuel gas collection case, treat that B, C two adds the oxygen in wet zone
After oxidant gas is drained, moistening fuel gas enters back into the anode of fuel cell pile；B, C two adds the electromagnetic switch of wet zone
Valve is when being switched to oxidant gas pipeline, and 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 that adds in wet zone until B, C two is drained, moistening oxidant gas enters back into fuel cell
The negative electrode of pile.
The operation principle of the present invention is: fuel cell initial start stage operating mode sets relevant parameter, dry fuel gas
Body and oxidant gas enter humidifier from fuel gas air inlet and oxidant gas air inlet respectively, and current are from airflow direction
Direction is entered in humidifier, permeable moistened membrane can only pass through water, it is impossible to through gas, water is by diffusion and moistened membrane
The differential water pressures of both sides penetrates into dry gas side, thus humidifies to gas, and the gas after humidification enters in pile.
Beneficial effect: gas humidifier is divided into 4 according to electric current output size and operating condition and humidifies districts by (1) present invention
Territory, regulates cathode gas according to the electric current of pile output and adds the area of wet zone and regulate the humidity of cathode gas, will residue
Region for anodic gas humidify, make humidifier the most all work under any operating mode, meet Fuel Cell Humidity demand, carry
High fuel cell humidifier humidification efficiency, by system control and humidification split plot design more effectively control gas humidification humidity and
Stable and the raising of more intelligent raising humidifier utilization rate, beneficially Performance data, improves fuel battery performance and life-span；With
Time one humidifier humidify two kinds of gases simultaneously, make fuel cell system more compact, beneficially 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
Fuel gas and oxidant gas to fuel cell humidify, and reduce the humidifier quantity of fuel cell system, reduce combustion
Material battery system volume, makes 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, humidifies dry gas by the differential water pressures osmosis of diffusion and moistened membrane both sides, can be according to reality
Border needs, the width of regulation flow field, gas-liquid water conservancy diversion dispersion plate both sides runner and the degree of depth, and the gentle flow quantity of shape in flow field comes
Control the humidity of gas humidification, it is to avoid fuel gas and oxidant gas humidity are excessive, cause negative electrode water logging, damage fuel cell
Pile；
(3) present invention arranges the end plate with pressure buffer at 4 two ends adding wet zone, advantageously reduces due to temperature
Humidifier size and pressure that change causes change the probability with internal hemorrhage due to trauma that leaks outside caused, the gas of the most internal humidifying unit
Pressure drop is little, low cost, it is simple to do supporting for fuel cell mass, and securing member more can guarantee that the overall dimensions of humidifier, more can
It is easy to fuel cell system moduleization integrated.
Accompanying drawing explanation
Fig. 1 is the structural representation of humidifier of the present invention；
Fig. 2 is the profile of humidifier of the present invention；
Fig. 3 is the structural representation of humidifying unit of the present invention；
Fig. 4 is the piping arrangement of humidifier of the present invention；
Wherein 1-humidifier, 2-end plate, 3-fixture, 11-gas-liquid water conservancy diversion dispersion plate, 12-gas partitions dispersion plate, 13-
Permeable moistened membrane, 1a-A add wet zone, 1b-B adds wet zone, 1c-C adds wet zone, 1d-D adds wet zone, 1e-medium leads to
Road, 20-humidify media outlet, 21-humidification medium entrance, fuel gas inlets is done in 22-A district, the public dry gas in 23-B district enters
Mouth, the public dry gas import of 24-C district, the dry oxidation agent gas feed of 25-D district, wet fuel gas outlet of 26-A district, 27-B district
The outlet of public humid gas, the outlet of the public humid gas in 28-C district, the wet oxygen agent gas feed of 29-D district.
Detailed description of the invention
Below by accompanying drawing, technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to
Described embodiment.
Embodiment: a kind of compact type intelligent humidification system for fuel cell, including fuel cell pile with to fuel cell electricity
The humidifier 1 of heap supply humidification gas.As it is shown in figure 1, humidifier 1 includes the humidification district of four one that are parallel to each other and are laminated for
Territory A adds wet zone 1a, B and adds wet zone 1b, C and add wet zone 1c and D and add wet zone 1d, and two ends are by the end plate 2 with buffer unit
Compress, and fixed by fixture 3, be wherein provided with A district in a side end panel 2 and do fuel gas inlets 22, the public dry gas in B district
Import 23, C district public dry gas import 24, D district dry oxidation agent gas feed 25 and humidification media outlet 20, opposite side end plate 2
On be provided with wet fuel gas outlet of A district 26, the public humid gas in B district outlet 27, the public humid gas in C district outlet 28, D district wet oxidation
Agent gas feed 29 and humidification media outlet 21；Between humidification medium entrance 21 and humidification media outlet 20 by medium channel even
Logical.
Each wet zone that adds is made up of some groups of humidifying unit, and humidifying unit includes gas-liquid water conservancy diversion dispersion plate 11, is arranged at
The gas partitions dispersion plate 12 of gas-liquid water conservancy diversion dispersion plate 11 both sides, and it is positioned at gas-liquid water conservancy diversion dispersion plate 12 and two gas partitions are divided
The permeable moistened membrane 13 of the permeable trapping fallen apart between 11；The both sides of gas-liquid water conservancy diversion dispersion plate 11 are provided with Gas-Liquid Dispersion stream
, humidification water or humidifier are distributed in Gas-Liquid Dispersion flow field；Gas flowfield, gas stream it is provided with on gas partitions dispersion plate 12
Fuel gas or oxidant gas are distributed in Chang；Between Gas-Liquid Dispersion flow field and both sides gas flowfield by permeable moistened membrane 13 every
Open.Gas-Liquid Dispersion flow field and gas flowfield are serpentine flow, craspedodrome flow field, point-like flow field, complex wake any of which.Gas
Liquid water conservancy diversion dispersion plate 11 and gas partitions dispersion plate 12 are made by metal or nonmetallic materials.
Respectively add the gas flowfield of humidifying unit in wet zone to be interconnected to be formed respectively to add and add wet channel in wet zone, four
The Gas-Liquid Dispersion flow field connection adding the whole humidifying unit of wet zone forms the medium channel 1e adding humid medium for circulation.
Four add in wet zone, and it is that fuel gas adds wet zone that A adds wet zone 1a, and it is fuel gas that B, C add wet zone 1b, 1c
Body oxidant gas shares and adds wet zone, and it is that oxidant gas adds wet zone that D adds wet zone 1d；A adds the import of wet zone 1a and leads to
Crossing shut-off valve to do fuel gas inlets 22 with A district and connect, outlet connects with wet fuel gas outlet of A district 26, and D adds wet zone 1d's
Import is connected with D district dry oxidation agent gas feed 25 by shut-off valve, and outlet connects with D district wet oxygen agent gas feed 29, B, C
Two imports adding wet zone 1b, 1c are entered by solenoid directional control valve dry gas public with B district import 23, the public dry gas in C district respectively
Mouth 24 connection, is exported and is connected by solenoid directional control valve humid gas public with B district outlet 27, the public humid gas in C district outlet 28.
Four air-humidification methods adding wet zone of humidifier, including two sections of humidification steps,
(1) the humidification step when pile output electric current is ascending:
A, when pile output electric current 0≤I≤nA time, drying fuel gas through shut-off valve enter humidifier A add wet zone,
Adding adding in wet channel of wet zone at A to humidify, the fuel gas after humidification is directly entered the anode of fuel cell pile；Oxidant
Gas adds wet zone through shut-off valve entrance humidifier B, C, D tri-and humidifies, and the oxidant gas after humidification passes through electromagnetism
Reversal valve enters the negative electrode of fuel cell pile；
B, when pile output electric current n ＜ I≤mA time, drying fuel gas through shut-off valve enter humidifier A, B two humidify
Region, A adds wet zone and humidifies directly to fuel gas, and B adds wet zone and is switched to fuel gas pipeline by solenoid directional control valve, gives
Fuel gas humidifies, and moistening fuel gas enters back into the anode of fuel cell pile；Oxidant gas is direct by shut-off valve
Entering humidifier C, D and add wet zone and oxidant gas bypass, bypass ratio valve is opened, and C, D two adds wet zone oxidizing agent
Gas humidification, the oxidant gas after humidification is after solenoid directional control valve and bypass oxidant gas collects entrance fuel cell pile
Negative electrode；
C, when pile output electric current m ＜ I≤kA time, drying fuel gas through shut-off valve enter humidifier A, B, C Acanthopanan trifoliatus (L.) Merr.
Wet zone, A, B add wet zone directly to fuel gas humidify, C adds wet zone and is switched to fuel gas pipe by solenoid directional control valve
Road, humidifies to fuel gas, and moistening fuel gas enters back into the anode of fuel cell pile；Oxidant gas passes through shut-off valve
Being directly entered humidifier D and add wet zone and oxidant gas bypass, oxidant gas bypass ratio valve is opened, and D adds wet zone
Oxygen supply agent gas humidification, the oxidant gas after humidification and bypass oxidant gas collect the moon entering fuel cell pile
Pole；
(2) the humidification step when pile output electric current is descending:
D, when pile output electric current n ＜ I≤mA time, drying fuel gas through shut-off valve enter humidifier A, B humidify district
Territory humidifies to fuel gas, and moistening fuel gas enters the anode of fuel cell pile；Oxidant gas is straight by shut-off valve
Tapping into and add wet zone and oxidant gas bypass into humidifier D, bypass oxidant gas proportioning valve is opened, and C adds wet zone and leads to
Crossing solenoid directional control valve and be switched to oxidant gas pipeline, oxygen supply agent gas humidification, the oxidant gas after humidification changes through electromagnetism
The negative electrode of fuel cell pile is entered after valve and bypass oxidant gas mixing.
E, when pile output electric current 0 ＜ I≤nA time, drying fuel gas through shut-off valve enter humidifier A add wet zone
Humidifying to fuel gas, moistening fuel gas enters the anode of fuel cell pile；Oxidant gas is direct by shut-off valve
Entering humidifier C, D and add wet zone, bypass oxidant gas proportioning valve is opened, and B is added wet zone and is switched to by solenoid directional control valve
Oxidant gas pipeline, oxygen supply agent gas humidification, the oxidant gas after humidification enters fuel cell electricity through solenoid directional control valve
The negative electrode of heap, bypass oxidant gas proportioning valve cuts out；
Wherein I is that pile exports electric current, and 0 ＜ n ＜ m ＜ k, B, C two adds the solenoid directional control valve of wet zone and be switched to fuel
During gas piping, solenoid directional control valve is first changed to emptying pattern and the fuel gas of humidification is first emptied in fuel gas collection case number
Second, after the oxidant gas that adds in wet zone until B, C two is drained, moistening fuel gas enters back into the sun of fuel cell pile
Pole；B, C two adds the solenoid directional control valve of wet zone when being switched to oxidant gas pipeline, and emptying pattern first changed to by solenoid directional control valve
The oxidant gas of humidification is first emptied the several seconds outside system, after the oxidant gas that adds in wet zone until B, C two is drained, moistening
Oxidant gas enter back into the negative electrode of fuel cell pile.
Although as it has been described above, represented and described the present invention with reference to specific preferred embodiment, but it must not be explained
For the restriction to the present invention self.Under the spirit and scope of the present invention premise defined without departing from claims, can be right
Various changes can be made in the form and details for it.
Claims (8)
1. a compact type intelligent humidification system for fuel cell, it is characterised in that include solenoid directional control valve, pipeline and to fuel electricity
The humidifier of pond pile supply humidification gas, what described humidifier included four one that are parallel to each other and are laminated for adds wet zone,
Each wet zone that adds is made up of some groups of humidifying unit, is all disposed with and is situated between with humidification for dry gas in often organizing described humidifying unit
What mass flow led to exchange adds wet channel, and wherein A adds wet zone is that fuel gas adds wet zone, and it is fuel gas oxygen that B, C add wet zone
Oxidant gas shares and adds wet zone, and it is that oxidant gas adds wet zone that D adds wet zone；
Described A adds the import of wet zone and connects with dry fuel gas inlets, exports by pipeline and described fuel cell pile
Anode connects, and described D adds the import of wet zone and connects with dry oxidation agent gas feed, exports by pipeline and described fuel cell
The negative electrode connection of pile, B, C two adds the import of wet zone respectively by solenoid directional control valve and dry fuel gas inlets, dry oxidation agent
Gas feed connects, and outlet is connected with anode, the negative electrode of described fuel cell pile by solenoid directional control valve.
Compact type intelligent humidification system for fuel cell the most according to claim 1, it is characterised in that described humidifying unit bag
Include gas-liquid water conservancy diversion dispersion plate, be arranged at the gas partitions dispersion plate of described gas-liquid water conservancy diversion dispersion plate both sides, and be positioned at described gas
The permeable moistened membrane of the permeable trapping between liquid water conservancy diversion dispersion plate and two gas partitions dispersion plates；
The both sides of described gas-liquid water conservancy diversion dispersion plate are provided with Gas-Liquid Dispersion flow field, humidification are distributed in described Gas-Liquid Dispersion flow field
Water or humidifier；Be provided with gas flowfield on described gas partitions dispersion plate, be distributed in described gas flowfield fuel gas or
Oxidant gas；Separated by described permeable moistened membrane between gas flowfield described in described Gas-Liquid Dispersion flow field and both sides.
Compact type intelligent humidification system for fuel cell the most according to claim 2, it is characterised in that add in respectively adding wet zone
The gas flowfield of wet unit is interconnected to be formed respectively to add and adds wet channel in wet zone, and four add the whole humidifying unit of wet zone
The connection of Gas-Liquid Dispersion flow field forms the medium channel adding humid medium for circulation.
Compact type intelligent humidification system for fuel cell the most according to claim 3, it is characterised in that four described humidification districts
Territory stacking is placed, and two ends are compressed by the end plate with buffer unit, and are fixed by fixture.
Compact type intelligent humidification system for fuel cell the most according to claim 4, it is characterised in that wherein in a side end panel
It is provided with dry fuel gas inlets, dry oxidation agent gas feed and humidification media outlet, opposite side end plate is provided with wet fuel
Gas outlet, wet oxygen agent gas outlet and humidification medium entrance；Lead between described humidification medium entrance and humidification media outlet
Cross the connection of described medium channel.
Compact type intelligent humidification system for fuel cell the most according to claim 2, it is characterised in that described Gas-Liquid Dispersion stream
Field and gas flowfield are serpentine flow, craspedodrome flow field, point-like flow field, complex wake any of which.
Compact type intelligent humidification system for fuel cell the most according to claim 2, it is characterised in that described gas-liquid water conservancy diversion
Dispersion plate and gas partitions dispersion plate, made by metal or nonmetallic materials.
Compact type intelligent humidification system for fuel cell the most according to claim 1, it is characterised in that described A adds wet zone
Import and dry fuel gas inlets between and described D add the import of wet zone connect with dry oxidation agent gas feed between also
It is respectively arranged with shut-off valve.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129436A (en) * | 2016-06-22 | 2016-11-16 | 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 and air-humidification method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129436A (en) * | 2016-06-22 | 2016-11-16 | 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 and air-humidification method thereof |
| CN106129436B (en) * | 2016-06-22 | 2018-08-28 | 江苏氢电新能源有限公司 | A kind of compact type intelligent humidification system for fuel cell and its air-humidification method |
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Address after: Suzhou City, Jiangsu Province, Yushan Town, Kunshan City, 215313 Yu Yang Road No. 299, room 3 Patentee 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, Patentee before: Jiangsu Lv Yao fuel cell system Manufacturing Co., Ltd |