CN110311153A - A kind of fuel cell pack multi-functional end plate and its working method - Google Patents
A kind of fuel cell pack multi-functional end plate and its working method Download PDFInfo
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- CN110311153A CN110311153A CN201910578084.XA CN201910578084A CN110311153A CN 110311153 A CN110311153 A CN 110311153A CN 201910578084 A CN201910578084 A CN 201910578084A CN 110311153 A CN110311153 A CN 110311153A
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- 239000000446 fuel Substances 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000001257 hydrogen Substances 0.000 claims abstract description 210
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 210
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 207
- 239000002826 coolant Substances 0.000 claims abstract description 130
- 239000007788 liquid Substances 0.000 claims abstract description 86
- 239000000110 cooling liquid Substances 0.000 claims abstract description 48
- 238000009413 insulation Methods 0.000 claims abstract description 33
- 239000007789 gas Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 230000003139 buffering effect Effects 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 9
- 150000002431 hydrogen Chemical class 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000006837 decompression Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000037361 pathway Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 3
- 239000000463 material Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 4
- 239000012429 reaction media Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
-
- 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
-
- 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
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04328—Temperature; Ambient temperature of anode reactants at the inlet or inside the fuel cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04358—Temperature; Ambient temperature of the coolant
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/2475—Enclosures, casings or containers of fuel cell stacks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
A kind of multi-functional end plate of fuel cell pack, including front end-plate and end plate, front end-plate are bonded with insulation board before fuel cell pack, and end plate is bonded with rear insulation board.There are air intake and hydrogen inlet above front end-plate front end face, lower section is provided with coolant inlet, and the first air conducting chamber being connected to air intake, the first hydrogen flow guide chamber being connected to hydrogen inlet and the first coolant liquid diversion cavity being connected to coolant inlet are provided on front end-plate rear end face.There are air outlet slit and hydrogen outlet below end plate rear end face, top is provided with cooling liquid outlet, and the second air conducting chamber being connected to air outlet slit, the second hydrogen flow guide chamber being connected to hydrogen outlet and the second coolant liquid diversion cavity being connected to cooling liquid outlet are provided on end plate front end face.The present invention gives the working methods of multi-functional end plate.The present invention can satisfy high power fuel cell heap use demand, reduces gas flow and changes the impact generated to pile, simplifies fuel cell system configuration.
Description
Technical field
The present invention relates to a kind of pem fuel cell stack multi-functional end plates and its working method, belong to fuel electricity
Pool technology field.
Background technique
The end plate and appended claims of fuel cell end plate fuel cell pack play and provide the work of encapsulation power for internal component
With, be determine battery pile comprehensive performance important component.Common end plate form includes: square endplate, cylindrical end plate, D-shaped
End plate etc..
Existing fuel cell end plate function is simple, is directly connected by circular channel and fuel cell pack internal component channel
Logical, after reaction medium enters internal component channel by endplate passageway, pressure is unevenly distributed, and it is uneven to will lead to pile internal-response
It is even, influence Performance data and service life；Particularly when further promoting pile reaction medium pressure, this inhomogeneity will
It is more obvious, it is unable to satisfy high power fuel cell heap use demand.And in the variation of high power fuel cell heap operating condition, gas
The impact that changes in flow rate generates pile is larger, influences stack performance and service life.
Structure is complicated for current fuel cell engine system simultaneously, and pressure, temperature sensor, connection component are arranged in electricity
In heap connecting pipe, medium pipeline is tediously long, and arrangement difficulty is larger, and electrical wiring is complicated, and the more maintenance of leakage point is inconvenient, and space
It is larger, it is difficult to meet future fuel battery large-scale promotion demand.
Summary of the invention
Technology of the invention solves the problems, such as: overcoming the deficiencies of the prior art and provide a kind of fuel cell pack with multi-functional
End plate and its working method.
The technical solution of the invention is as follows:
A kind of multi-functional end plate of fuel cell pack, including front end-plate and end plate, front end-plate are fixed on fuel cell pack
On preceding insulation board, end plate is fixed on after fuel cell pack on insulation board；
There are air intake and hydrogen inlet above front end-plate front end face, lower section middle is provided with coolant inlet, front end
The first air conducting chamber, the first hydrogen flow guide chamber and the first coolant liquid diversion cavity, the air intake are provided on plate rear end face
It is connected to the first air conducting chamber, hydrogen inlet is connected to the first hydrogen flow guide chamber, coolant inlet and the first coolant liquid water conservancy diversion
Chamber connection, the diversion outlet of the first air conducting chamber are bonded with the air duct on insulation board before fuel cell system, the
The diversion outlet of one hydrogen flow guide chamber is bonded with the hydrogen paths on insulation board before fuel cell system, the first coolant liquid diversion cavity
Diversion outlet be bonded with the cooling passage on insulation board before fuel cell system；
There are air outlet slit and hydrogen outlet below end plate rear end face, top middle is provided with cooling liquid outlet, rear end
Be provided with the second air conducting chamber, the second hydrogen flow guide chamber, the second coolant liquid diversion cavity on front edge of board face, the air outlet slit with
The connection of second air conducting chamber, hydrogen outlet are connected to the second hydrogen flow guide chamber, cooling liquid outlet and the second coolant liquid diversion cavity
Connection, the directed fluid inlet of the second air conducting chamber are bonded with the air duct on insulation board after fuel cell system, the second hydrogen
The directed fluid inlet of diversion cavity is bonded with the hydrogen paths on insulation board after fuel cell system, the water conservancy diversion of the second coolant liquid diversion cavity
Entrance is bonded with the cooling passage on insulation board after fuel cell system.
The first air conducting chamber, the first hydrogen flow guide chamber, the first coolant liquid diversion cavity, the second air conducting chamber,
Two hydrogen flow guide chambers and the second coolant liquid diversion cavity are class fan-shaped chamber, the class fan-shaped chamber sectional area from end plate medium channel to
End plate edge becomes larger, and class fan-shaped chamber is provided with straight line medium channel in end plate edge, and inside class fan-shaped chamber, from end plate
Medium channel is to multiple medium runners, edge of the class fan-shaped chamber in addition to straight line medium channel is provided between straight line medium channel
Arc-shaped；
The straight line medium channel of the first air conducting chamber, the first hydrogen flow guide chamber and the first coolant liquid diversion cavity is
The straight line medium channel of diversion outlet, the second air conducting chamber, the second hydrogen flow guide chamber and the second coolant liquid diversion cavity is
For directed fluid inlet.
The sectional area of the first air conducting chamber is at least times of the first hydrogen flow guide chamber sectional area, the second air conducting
Chamber volume sectional area is at least times of the second hydrogen flow guide chamber sectional area.
The upper surface of front end-plate is provided with air inlet temperature sensor interface at air intake；Front end-plate is close
The side of air intake is provided with Air inlet pressure sensor interface；Air inlet temperature sensor interface and air intake pressure
Force snesor interface passes through inner passage and is connected to air intake；Air inlet temperature sensor interface front end installation air enters
Air inlet pressure sensor is installed in mouth temperature sensor, Air inlet pressure sensor interface front end；
The lower surface of end plate is provided with air exit temp sensor interface at air outlet slit；End plate is close
The side of air outlet slit is provided with air outlet slit pressure sensor interface, air exit temp sensor interface and air outlet slit pressure
Force snesor interface passes through inner passage and is connected to air outlet slit；Air exit temp sensor interface front end installation air goes out
Air outlet slit pressure sensor is installed in mouth temperature sensor, air outlet slit pressure sensor interface front end.
The upper surface of front end-plate is provided with hydrogen inlet temperature sensor interface at hydrogen inlet；Front end-plate is close
The side of hydrogen inlet is provided with hydrogen inlet pressure sensor interface, hydrogen inlet temperature sensor interface and hydrogen inlet pressure
Force snesor interface passes through inner passage and is connected to hydrogen inlet；Hydrogen inlet temperature sensor interface front end installation hydrogen enters
Hydrogen inlet pressure sensor is installed in mouth temperature sensor, hydrogen inlet pressure sensor interface front end；
The lower surface of end plate is provided with hydrogen outlet temperature sensor interface at hydrogen outlet；End plate is close
The side of hydrogen outlet is provided with hydrogen outlet pressure sensor interface, hydrogen outlet temperature sensor interface and hydrogen outlet pressure
Force snesor interface passes through inner passage and is connected to hydrogen outlet；Hydrogen outlet temperature sensor interface front end installation hydrogen goes out
Hydrogen outlet pressure sensor is installed in mouth temperature sensor, hydrogen outlet pressure sensor interface front end.
The lower surface of front end-plate is equipped with coolant inlet temperature sensor interface at coolant inlet；Front end-plate
Side, is equipped with coolant inlet pressure sensor interface at the coolant inlet, coolant inlet temperature sensor interface, cold
But liquid inlet pressure transducer interface passes through inner passage and is connected to coolant inlet；Coolant inlet temperature sensor interface
Coolant inlet temperature sensor is installed in front end, and coolant inlet pressure sensor interface front end is installed coolant inlet pressure and passed
Sensor；
The upper surface of end plate is equipped with cooling liquid outlet temperature sensor interface at cooling liquid outlet；End plate
Side, is equipped with cooling liquid outlet pressure sensor interface at the cooling liquid outlet, cooling liquid outlet temperature sensor interface, cold
But liquid outlet pressure sensor interface passes through inner passage and is connected to cooling liquid outlet；Cooling liquid outlet temperature sensor interface
Cooling liquid outlet temperature sensor is installed in front end, and cooling liquid outlet pressure sensor interface front end is installed cooling liquid outlet pressure and passed
Sensor.
The thickness of the front end-plate and end plate is all larger than 20mm；First air conducting chamber, the first hydrogen flow guide chamber and
The depth of one coolant liquid diversion cavity is identical, respectively less than the 50% of front end plate thickness, the second air conducting chamber, the second hydrogen flow guide chamber
It is identical with the depth of the second coolant liquid diversion cavity, respectively less than the 50% of rear end plate thickness.
Reinforcing rib is designed on front end-plate and end plate.
Moisture trap is connected at the hydrogen outlet of end plate.
A kind of fuel cell pack working method of multi-functional end plate, steps are as follows:
(1) when fuel cell operation, air enters the air intake on front end-plate after filtering, pressurization, cooling and humidification,
Pressure when Air inlet pressure sensor acquisition air enters fuel cell pack, air inlet temperature sensor acquire air into
Enter temperature when fuel cell pack；Air enters the first air conducting chamber on front end-plate after entering air intake, through the first sky
Enter fuel cell pack air duct after gas diversion cavity buffering and water conservancy diversion to react；After fuel cell pack reacts, residual gas warp
After end plate the second air conducting chamber buffering and water conservancy diversion, flowed out by end plate air outlet slit, air outlet slit pressure sensor is adopted
Collection air leaves pressure when fuel cell pack, and air exit temp sensor acquisition air leaves temperature when fuel cell pack
Degree；
(2) coolant liquid enters the coolant inlet on front end-plate, coolant inlet after system temperature is adjusted and is pressurized
Pressure sensor acquisition coolant liquid enters pressure when fuel cell pack, and coolant inlet temperature sensor acquires coolant liquid and enters
Temperature when fuel cell pack；Coolant liquid enters the first coolant liquid diversion cavity after entering coolant inlet, leads through the first coolant liquid
Enter fuel cell pack after flowing chamber buffering and water conservancy diversion；Coolant liquid enters after fuel cell pack takes away reaction heat, through end plate second
It after coolant liquid diversion cavity buffering and water conservancy diversion, is flowed out by end plate cooling liquid outlet, the acquisition of cooling liquid outlet pressure sensor is cold
But pressure when liquid leaves fuel cell pack, cooling liquid outlet temperature sensor acquisition coolant liquid leave temperature when fuel cell pack
Degree；
(3) hydrogen by decompression after enter front end-plate on hydrogen inlet, hydrogen inlet pressure sensor acquire hydrogen into
Enter pressure when fuel cell pack, hydrogen inlet temperature sensor acquisition hydrogen enters temperature when fuel cell pack；Hydrogen into
Enter the first hydrogen flow guide of front end-plate chamber after entering hydrogen inlet, enters fuel cell after the first hydrogen flow guide chamber buffering and water conservancy diversion
The reaction of heap hydrogen paths；After fuel cell pack reacts, residual gas through end plate the second hydrogen flow guide chamber buffering and water conservancy diversion after,
It is flowed out by end plate hydrogen outlet, hydrogen outlet pressure sensor acquisition hydrogen leaves pressure when fuel cell pack, hydrogen
Outlet temperature sensor acquisition remaining hydrogen leaves temperature when fuel cell pack；
(4) Air inlet pressure sensor, air inlet temperature sensor, air outlet slit pressure sensor, air outlet slit
It is temperature sensor, coolant inlet pressure sensor, coolant inlet temperature sensor, cooling liquid outlet pressure sensor, cold
But liquid outlet temperature sensor, hydrogen inlet pressure sensor, hydrogen inlet temperature sensor, hydrogen outlet pressure sensor,
Hydrogen outlet temperature sensor is by the controller of the parameter feedback of acquisition to fuel cell pack, by controller according to pressure everywhere
With the design requirement of temperature and pressure and temperature, it is adjusted into the flow and temperature of the air of front end-plate, hydrogen or coolant liquid.
Compared with prior art, the invention has the following beneficial effects:
(1) present invention is respectively provided with air conducting chamber, hydrogen flow guide chamber and coolant liquid diversion cavity on the end plate of front and back, leads to
The design for crossing diversion cavity shape and structure realizes buffering and diversion function to working media, effectively facilitates pressure medium and exist
Pile is uniformly distributed in inner passage, when the variation of high power fuel cell heap operating condition, will reduce gas flow variation to pile
The impact of generation effectively promotes stack performance and fuel cell pack service life.
(2) design of air conducting chamber, hydrogen flow guide chamber and coolant liquid diversion cavity of the present invention, ensure that reaction medium (i.e.
Make to be the very big reaction medium of pressure) enter fuel cell pack inner passage after, pressure is evenly distributed, so guarantee pile inside
Reaction uniformly, meets high power fuel cell heap use demand, significantly improves Performance data and service life；
(3) flexible design of the present invention can realize the demand of fuel cell pack different capacity by adjusting end plate quantity, and
Design has reinforcing rib on end plate, lays the foundation for the use of high power fuel cell heap.
It is (4) of the invention on the basis of guaranteeing existing fuel cell pack general assembly pressure, insulation and working media circulating function,
Instead of fuel cell section pipeline and acquisition function, increased on the end plate of front and back to air road, hydrogen road and cooling
The pressure and temperature of fluid path acquires function, greatly simplifies fuel cell system configuration, reduces system bulk, convenient to overhaul, reduces
System cost.
Detailed description of the invention
Fig. 1 is the multi-functional end plate schematic diagram of the present invention；
Fig. 2 is front end-plate front/rear end schematic diagram, wherein (a) is front end face, it (b) is rear end face；
Fig. 3 is end plate front/rear end schematic diagram, wherein (a) is front end face, it (b) is rear end face；
Fig. 4 is front end-plate upper and lower surface and side schematic view；
Fig. 5 is end plate upper and lower surface and side schematic view.
Specific embodiment
With reference to the accompanying drawing, the invention will be further described.
As shown in Figure 1, the invention proposes a kind of multi-functional end plate of fuel cell pack, including front end-plate 1 and end plate
2, front end-plate 1 is fixed on before fuel cell pack on insulation board, and end plate 2 is fixed on after fuel cell pack on insulation board.
In Fig. 2 shown in (a), there is air intake 11 on 1 front end face upper left side of front end-plate, and there is hydrogen inlet 12 in upper right side, under
Square middle is provided with coolant inlet 13, and in Fig. 2 shown in (b), the first air conducting chamber is provided on 1 rear end face of front end-plate
14, (sectional area of the first air conducting chamber 14 is at least the first hydrogen for the first hydrogen flow guide chamber 15 and the first coolant liquid diversion cavity 16
2 times of gas diversion cavity 15), the air entered by air intake 11 through 14 water conservancy diversion of the first air conducting chamber to 1 side of front end-plate, so
Fuel cell pack is entered by the air duct on insulation board before fuel cell pack afterwards；The hydrogen entered by hydrogen inlet 12 is through
Then one hydrogen flow guide chamber, 15 water conservancy diversion is entered to 1 other side of front end-plate by the hydrogen paths on insulation board before fuel cell pack
Fuel cell pack；The coolant liquid entered by coolant inlet 13 through 16 water conservancy diversion of the first coolant liquid diversion cavity to 1 downside of front end-plate, so
Fuel cell pack is entered by the cooling passage on the downside of insulation board before fuel cell pack afterwards.
In Fig. 3 shown in (a), there is air outlet slit 21 in 2 rear end face lower right of end plate, and there is hydrogen outlet 22 in lower left, on
Square middle is provided with cooling liquid outlet 23, and in Fig. 3 shown in (b), the second air conducting chamber is provided on 2 front end face of end plate
24, the second hydrogen flow guide chamber 25 (24 sectional area of the second air conducting chamber be at least 25 sectional area of the second hydrogen flow guide chamber 2 times),
Second coolant liquid diversion cavity 26, the air after fuel cell pack reaction is by rear insulation board air duct through the second air conducting chamber
Fuel cell system is returned to by air outlet slit 21 after water conservancy diversion；Hydrogen after fuel cell pack reaction is logical by rear insulation board air
Road returns to fuel cell system by hydrogen outlet 22 after the second hydrogen flow guide chamber water conservancy diversion；It is cold after fuel cell pack heat exchange
But liquid returns to fuel electricity by cooling liquid outlet 23 after the second coolant liquid diversion cavity water conservancy diversion by rear insulation board cooling passage
Cell system.
First air conducting chamber, the first hydrogen flow guide chamber, the first coolant liquid diversion cavity, the second air conducting chamber, the second hydrogen
Gas diversion cavity and the second coolant liquid diversion cavity are class fan-shaped chamber, and the class fan-shaped chamber sectional area is from end plate medium channel to end plate
Edge becomes larger, and class fan-shaped chamber is provided with straight line medium channel in end plate edge, and inside class fan-shaped chamber, from end plate medium
Channel is circular arc to multiple medium runners, edge of the class fan-shaped chamber in addition to straight line medium channel is provided between straight line medium channel
Shape.
Sky before the straight line medium channel (directed fluid inlet) and fuel cell system of first air conducting chamber 14 on insulation board
Gas channel is bonded, before the straight line medium channel (directed fluid inlet) and fuel cell system of the first hydrogen flow guide chamber 15 on insulation board
Hydrogen paths fitting, straight line medium channel (directed fluid inlet) and the insulation board before fuel cell system of the first coolant liquid diversion cavity 16
On cooling passage fitting, after the straight line medium channel (diversion outlet) of the second air conducting chamber 24 and fuel cell system absolutely
Air duct on listrium is bonded, after the straight line medium channel (diversion outlet) and fuel cell system of the second hydrogen flow guide chamber 25
Hydrogen paths fitting on insulation board, the straight line medium channel (diversion outlet) of the second coolant liquid diversion cavity 26 and fuel cell system
Cooling passage fitting after system on insulation board.
As shown in figure 4, the upper surface of front end-plate 1, is provided with air inlet temperature sensor at air intake 11 and connects
Mouth 111, front end-plate 1 is provided with Air inlet pressure sensor interface 112, air intake temperature close to the side of air intake 11
Degree sensor interface 111 and Air inlet pressure sensor interface 112 are connected to by inner passage with air intake 11；Air
Inlet temperature sensor interface front end installs air inlet temperature sensor, and the installation of Air inlet pressure sensor interface front end is empty
Gas inlet pressure transducer.
The upper surface of front end-plate 1 is provided with hydrogen inlet temperature sensor interface 121 at hydrogen inlet 12；Front end
Plate 1 is provided with hydrogen inlet pressure sensor interface 122, hydrogen inlet temperature sensor interface close to the side of hydrogen inlet 12
121 and hydrogen inlet pressure sensor interface 122 be connected to by inner passage with hydrogen inlet 12 by inner passage；Hydrogen
Inlet temperature sensor interface front end installs hydrogen inlet temperature sensor, and hydrogen is installed in hydrogen inlet pressure sensor interface front end
Gas inlet pressure transducer.
The lower surface of front end-plate 1 is equipped with coolant inlet temperature sensor interface 131 at coolant inlet 13；Before
The side of end plate 1 is equipped with coolant inlet pressure sensor interface 132, coolant inlet temperature at coolant inlet 13
Sensor interface 131, coolant inlet pressure sensor interface 132 are connected to by inner passage with coolant inlet 13；It is cold
But liquid inlet temperature sensor interface front end installs coolant inlet temperature sensor, before coolant inlet pressure sensor interface
End installation coolant inlet pressure sensor.
As shown in figure 5, the lower surface of end plate 2, is provided with air exit temp sensor at air outlet slit 21 and connects
Mouth 211；End plate 2 is provided with air outlet slit pressure sensor interface 212, air exit temp close to the side of air outlet slit 21
Sensor interface 211 and air outlet slit pressure sensor interface 212 are connected to by inner passage with air outlet slit 21；Air goes out
Air exit temp sensor is installed in mouth temperature sensor interface front end, and air is installed in air outlet slit pressure sensor interface front end
Outlet pressure sensor.
The lower surface of end plate 2 is provided with hydrogen outlet temperature sensor interface 221 at hydrogen outlet 22；Rear end
Plate 2 is provided with hydrogen outlet pressure sensor interface 222, hydrogen outlet temperature sensor interface close to the side of hydrogen outlet 22
221 and hydrogen outlet pressure sensor interface 222 be connected to by inner passage with hydrogen outlet 22 by inner passage；Hydrogen
Outlet temperature sensor interface front end installs hydrogen outlet temperature sensor, and hydrogen is installed in hydrogen outlet pressure sensor interface front end
Gas outlet pressure sensor.
The upper surface of end plate 2 is equipped with cooling liquid outlet temperature sensor interface 231 at cooling liquid outlet 23；Afterwards
The side of end plate 2 is equipped with cooling liquid outlet pressure sensor interface 232, cooling liquid outlet temperature at cooling liquid outlet 23
Sensor interface 231, cooling liquid outlet pressure sensor interface 232 are connected to by inner passage with cooling liquid outlet 23；It is cold
But liquid outlet temperature sensor interface front end installs cooling liquid outlet temperature sensor, before cooling liquid outlet pressure sensor interface
End installation cooling liquid outlet pressure sensor.
The thickness of front end-plate 1 and end plate 2 is all larger than 20mm；First air conducting chamber, the first hydrogen flow guide chamber and first
The depth of coolant liquid diversion cavity is identical, respectively less than the 50% of 1 thickness of front end-plate, the second air conducting chamber, the second hydrogen flow guide chamber
It is identical with the depth of the second coolant liquid diversion cavity, respectively less than the 50% of 2 thickness of end plate.
Reinforcing rib is designed on front end-plate 1 and end plate 2.Gas-water separation is connected at the hydrogen outlet 21 of end plate 2
Device.
When fuel cell operation: air enters front end-plate upper left side sky by channel after filtering, pressurization, cooling and humidification
Gas entrance, Air inlet pressure sensor acquisition air enter pressure when fuel cell pack, and air inlet temperature sensor is adopted
Collection air enters temperature when fuel cell pack；Air enters the first air conducting chamber on front end-plate after entering air intake,
Enter fuel cell pack air duct after the first air conducting chamber buffering and water conservancy diversion to react；After fuel cell pack reacts, remain
Residual air body is flowed out, air outlet slit pressure after end plate the second air conducting chamber buffering and water conservancy diversion by end plate air outlet slit
Sensor acquisition air leaves pressure when fuel cell pack, and air exit temp sensor acquisition air leaves fuel cell pack
When temperature.
When fuel cell operation: coolant liquid is entered after system temperature is adjusted and is pressurized by channel in below front end-plate
Between coolant inlet, pressure when coolant inlet pressure sensor acquisition coolant liquid enters fuel cell pack, coolant liquid enters
Mouth temperature sensor acquisition coolant liquid enters temperature when fuel cell pack；Coolant liquid enters front end-plate after entering coolant inlet
First coolant liquid diversion cavity enters fuel cell pack after the first coolant liquid diversion cavity buffering and water conservancy diversion；Coolant liquid enters fuel
After battery pile takes away reaction heat, after end plate the second coolant liquid diversion cavity buffering and water conservancy diversion, into end plate top middle
Cooling liquid outlet, cooling liquid outlet pressure sensor acquisition coolant liquid leave pressure when fuel cell pack, cooling liquid outlet temperature
Degree sensor acquisition coolant liquid leaves temperature when fuel cell pack.
When fuel cell operation: hydrogen enters front end-plate upper right side hydrogen inlet, hydrogen inlet by channel by decompression
Pressure sensor acquisition hydrogen enters pressure when fuel cell pack, and hydrogen inlet temperature sensor acquisition hydrogen enters fuel electricity
The temperature when heap of pond；Hydrogen enters the first hydrogen flow guide of front end-plate chamber after entering hydrogen inlet, buffers through the first hydrogen flow guide chamber
With after water conservancy diversion enter fuel cell stack hydrogen gas pathway reaction；After fuel cell pack reacts, residual gas is through the second hydrogen of end plate
It after gas diversion cavity buffering and water conservancy diversion, is flowed out by end plate lower left hydrogen outlet, hydrogen outlet pressure sensor acquires hydrogen
Pressure when fuel cell pack is left, hydrogen outlet temperature sensor acquisition remaining hydrogen leaves temperature when fuel cell pack；
Remaining hydrogen by the moisture trap that is connect with end plate hydrogen outlet, in moisture trap with aqueous water
From；Remaining hydrogen enters the hydrogen gas circulating pump connecting with moisture trap after leaving moisture trap；Hydrogen is through hydrogen gas circulating pump
It is mixed into fuel cell pack with the hydrogen of fuel cell stack inlet after pressurization, is constantly recycled.
Air inlet pressure sensor, air inlet temperature sensor, air outlet slit pressure sensor, air exit temp
Sensor, coolant inlet pressure sensor, coolant inlet temperature sensor, cooling liquid outlet pressure sensor, coolant liquid
Outlet temperature sensor, hydrogen inlet pressure sensor, hydrogen inlet temperature sensor, hydrogen outlet pressure sensor, hydrogen
Outlet temperature sensor is by the controller of the parameter feedback of acquisition to fuel cell pack, by controller according to pressure and temperature everywhere
The working condition requirement of degree and pressure and temperature, regulating system operating status make the air into front end-plate, hydrogen or coolant liquid
Flow and temperature meet target call.
The present invention is on the basis for guaranteeing existing fuel cell pack offer general assembly pressure, insulation and working media circulating function
On, instead of fuel cell section pipeline and acquisition function, the water conservancy diversion before especially increasing working media reaction is gentle
Function is rushed, the acquisition of the pressure and temperature to air road, hydrogen road and cooling fluid path is realized；It hydrogen road can to hydrogen disengaging
Realize the functions such as the separation of hydrogen water, circulation and stress and heating and moistening.Fuel cell system configuration is greatly simplified, system bulk is reduced,
It is convenient to overhaul, reduce system cost；Meet fuel cell pack especially high power fuel cell heap to working media flow simultaneously
With the adaptability of pressure change, stack performance and fuel cell pack service life are effectively promoted.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Unspecified part of the present invention belongs to common sense well known to those skilled in the art.
Claims (10)
1. a kind of multi-functional end plate of fuel cell pack, it is characterised in that: including front end-plate (1) and end plate (2), front end-plate
(1) it is fixed on before fuel cell pack on insulation board, end plate (2) is fixed on after fuel cell pack on insulation board；
There are air intake (11) and hydrogen inlet (12) above front end-plate (1) front end face, lower section middle is provided with coolant liquid and enters
Mouthful (13) are provided with the first air conducting chamber (14) on front end-plate (1) rear end face, the first hydrogen flow guide chamber (15) and first cools down
Liquid diversion cavity (16), the air intake (11) are connected to the first air conducting chamber (14), hydrogen inlet (12) and the first hydrogen
Diversion cavity (15) connection, coolant inlet (13) are connected to the first coolant liquid diversion cavity (16), the first air conducting chamber
(14) diversion outlet is bonded with the air duct on insulation board before fuel cell system, the water conservancy diversion of the first hydrogen flow guide chamber (15)
Outlet is bonded with the hydrogen paths on insulation board before fuel cell system, the diversion outlet of the first coolant liquid diversion cavity (16) and combustion
Cooling passage fitting before material battery system on insulation board；
There are air outlet slit (21) and hydrogen outlet (22) below end plate (2) rear end face, top middle is provided with coolant liquid and goes out
Mouthful (23) are provided with the second air conducting chamber (24), the second hydrogen flow guide chamber (25), second cooling on end plate (2) front end face
Liquid diversion cavity (26), the air outlet slit (21) are connected to the second air conducting chamber (24), hydrogen outlet (22) and the second hydrogen
Diversion cavity (25) connection, cooling liquid outlet (23) are connected to the second coolant liquid diversion cavity (26), the second air conducting chamber (24)
Directed fluid inlet is bonded with the air duct on insulation board after fuel cell system, the directed fluid inlet of the second hydrogen flow guide chamber (25) with
Hydrogen paths fitting after fuel cell system on insulation board, the directed fluid inlet and fuel cell system of the second coolant liquid diversion cavity
Cooling passage fitting on insulation board afterwards.
2. a kind of multi-functional end plate of fuel cell pack according to claim 1, it is characterised in that: first air is led
Flow chamber (14), the first hydrogen flow guide chamber (15), the first coolant liquid diversion cavity (16), the second air conducting chamber (24), the second hydrogen
Diversion cavity (25) and the second coolant liquid diversion cavity (26) are class fan-shaped chamber, and the class fan-shaped chamber sectional area is from end plate medium channel
It is become larger to end plate edge, class fan-shaped chamber is provided with straight line medium channel in end plate edge, and inside class fan-shaped chamber, from end
Plate medium channel is to being provided with multiple medium runners, edge of the class fan-shaped chamber in addition to straight line medium channel between straight line medium channel
For arc-shaped；
The first air conducting chamber (14), the first hydrogen flow guide chamber (15) and the first coolant liquid diversion cavity (16) straight line medium
Channel is diversion outlet, the second air conducting chamber (24), the second hydrogen flow guide chamber (25) and the second coolant liquid diversion cavity
(26) straight line medium channel is directed fluid inlet.
3. a kind of multi-functional end plate of fuel cell pack according to claim 1, it is characterised in that: first air is led
The sectional area of stream chamber (14) is at least 2 times of first hydrogen flow guide chamber (15) sectional area, second air conducting chamber (24) volume section
Product is at least 2 times of second hydrogen flow guide chamber (25) sectional area.
4. a kind of multi-functional end plate of fuel cell pack according to claim 1, it is characterised in that: front end-plate (1) it is upper
Surface is provided with air inlet temperature sensor interface (111) at air intake (11)；Front end-plate (1) enters close to air
The side of mouth (11) is provided with Air inlet pressure sensor interface (112)；Air inlet temperature sensor interface (111) and sky
Gas inlet pressure transducer interface (112) is connected to by inner passage with air intake (11)；Air inlet temperature sensor
Interface front end installs air inlet temperature sensor, and Air inlet pressure sensing is installed in Air inlet pressure sensor interface front end
Device；
The lower surface of end plate (2) is provided with air exit temp sensor interface (211) at air outlet slit (21)；Afterwards
End plate (2) is provided with air outlet slit pressure sensor interface (212) close to the side of air outlet slit (21), and air exit temp passes
Sensor interface (211) and air outlet slit pressure sensor interface (212) are connected to by inner passage with air outlet slit (21)；It is empty
Gas outlet temperature sensor interface front end installs air exit temp sensor, the installation of air outlet slit pressure sensor interface front end
Air outlet slit pressure sensor.
5. a kind of multi-functional end plate of fuel cell pack according to claim 1, it is characterised in that: front end-plate (1) it is upper
Surface is provided with hydrogen inlet temperature sensor interface (121) at hydrogen inlet (12)；Front end-plate (1) enters close to hydrogen
The side of mouth (12) is provided with hydrogen inlet pressure sensor interface (122), hydrogen inlet temperature sensor interface (121) and hydrogen
Gas inlet pressure transducer interface (122) is connected to by inner passage with hydrogen inlet (12)；Hydrogen inlet temperature sensor
Interface front end installs hydrogen inlet temperature sensor, and hydrogen inlet pressure sensing is installed in hydrogen inlet pressure sensor interface front end
Device；
The lower surface of end plate (2) is provided with hydrogen outlet temperature sensor interface (221) at hydrogen outlet (22)；Afterwards
End plate (2) is provided with hydrogen outlet pressure sensor interface (222) close to the side of hydrogen outlet (22), and hydrogen outlet temperature passes
Sensor interface (221) and hydrogen outlet pressure sensor interface (222) are connected to by inner passage with hydrogen outlet (22)；Hydrogen
Gas outlet temperature sensor interface front end installs hydrogen outlet temperature sensor, the installation of hydrogen outlet pressure sensor interface front end
Hydrogen outlet pressure sensor.
6. a kind of multi-functional end plate of fuel cell pack according to claim 1, it is characterised in that: under front end-plate (1)
Surface is equipped with coolant inlet temperature sensor interface (131) at coolant inlet (13)；The side of front end-plate (1), is leaned on
Coolant inlet pressure sensor interface (132) are equipped at nearly coolant inlet (13), coolant inlet temperature sensor interface
(131), coolant inlet pressure sensor interface (132) is connected to by inner passage with coolant inlet (13)；Coolant liquid
Inlet temperature sensor interface front end installs coolant inlet temperature sensor, coolant inlet pressure sensor interface front end peace
Fill coolant inlet pressure sensor；
The upper surface of end plate (2) is equipped with cooling liquid outlet temperature sensor interface (231) at cooling liquid outlet (23)；
The side of end plate (2) is equipped with cooling liquid outlet pressure sensor interface (232) at cooling liquid outlet (23), coolant liquid
Outlet temperature sensor interface (231), cooling liquid outlet pressure sensor interface (232) are gone out by inner passage and coolant liquid
Mouth (23) connection；Cooling liquid outlet temperature sensor interface front end is installed by cooling liquid outlet temperature sensor, cooling liquid outlet pressure
Force snesor interface front end installs cooling liquid outlet pressure sensor.
7. a kind of multi-functional end plate of fuel cell pack according to claim 1, it is characterised in that: the front end-plate (1)
20mm is all larger than with the thickness of end plate (2)；First air conducting chamber, the first hydrogen flow guide chamber and the first coolant liquid diversion cavity
Depth is identical, respectively less than the 50% of front end-plate (1) thickness, the second air conducting chamber, the second hydrogen flow guide chamber and the second coolant liquid
The depth of diversion cavity is identical, respectively less than the 50% of end plate (2) thickness.
8. a kind of multi-functional end plate of fuel cell pack according to claim 1, it is characterised in that: front end-plate (1) and after
End plate is designed with reinforcing rib on (2).
9. a kind of multi-functional end plate of fuel cell pack according to claim 1, it is characterised in that: the hydrogen of end plate (2)
Moisture trap is connected at gas outlet (21).
10. a kind of fuel cell pack working method of multi-functional end plate, it is characterised in that steps are as follows:
(1) when fuel cell operation, air enters the air intake on front end-plate, air after filtering, pressurization, cooling and humidification
Inlet pressure transducer acquisition air enters pressure when fuel cell pack, and air inlet temperature sensor acquisition air enters combustion
Expect temperature when battery pile；Air enters the first air conducting chamber on front end-plate after entering air intake, leads through the first air
Enter the reaction of fuel cell pack air duct after flowing chamber buffering and water conservancy diversion；After fuel cell pack reacts, residual gas is through rear end
It after plate the second air conducting chamber buffering and water conservancy diversion, is flowed out by end plate air outlet slit, the acquisition of air outlet slit pressure sensor is empty
Gas leaves pressure when fuel cell pack, and air exit temp sensor acquisition air leaves temperature when fuel cell pack；
(2) coolant liquid enters the coolant inlet on front end-plate, coolant inlet pressure after system temperature is adjusted and is pressurized
Sensor acquisition coolant liquid enters pressure when fuel cell pack, and coolant inlet temperature sensor acquisition coolant liquid enters fuel
Temperature when battery pile；Coolant liquid enters the first coolant liquid diversion cavity after entering coolant inlet, through the first coolant liquid diversion cavity
Enter fuel cell pack after buffering and water conservancy diversion；Coolant liquid enters after fuel cell pack takes away reaction heat, cooling through end plate second
It after liquid diversion cavity buffering and water conservancy diversion, is flowed out by end plate cooling liquid outlet, cooling liquid outlet pressure sensor acquires coolant liquid
Pressure when fuel cell pack is left, cooling liquid outlet temperature sensor acquisition coolant liquid leaves temperature when fuel cell pack；
(3) hydrogen enters the hydrogen inlet on front end-plate after decompression, and hydrogen inlet pressure sensor acquisition hydrogen enters combustion
Expect pressure when battery pile, hydrogen inlet temperature sensor acquisition hydrogen enters temperature when fuel cell pack；Hydrogen enters hydrogen
Enter the first hydrogen flow guide of front end-plate chamber after gas entrance, enters fuel cell stack hydrogen after the first hydrogen flow guide chamber buffering and water conservancy diversion
Gas pathway reaction；After fuel cell pack reacts, residual gas passes through after end plate the second hydrogen flow guide chamber buffering and water conservancy diversion
The outflow of end plate hydrogen outlet, hydrogen outlet pressure sensor acquisition hydrogen leave pressure when fuel cell pack, hydrogen outlet
Temperature sensor acquisition remaining hydrogen leaves temperature when fuel cell pack；
(4) Air inlet pressure sensor, air inlet temperature sensor, air outlet slit pressure sensor, air exit temp
Sensor, coolant inlet pressure sensor, coolant inlet temperature sensor, cooling liquid outlet pressure sensor, coolant liquid
Outlet temperature sensor, hydrogen inlet pressure sensor, hydrogen inlet temperature sensor, hydrogen outlet pressure sensor, hydrogen
Outlet temperature sensor is by the controller of the parameter feedback of acquisition to fuel cell pack, by controller according to pressure and temperature everywhere
The design requirement of degree and pressure and temperature is adjusted into the flow and temperature of the air of front end-plate, hydrogen or coolant liquid.
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| CN201910578084.XA CN110311153B (en) | 2019-06-28 | 2019-06-28 | End plate for fuel cell stack and working mode thereof |
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