CN109216738A - Fuel cell system - Google Patents
Fuel cell system Download PDFInfo
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- CN109216738A CN109216738A CN201810892324.9A CN201810892324A CN109216738A CN 109216738 A CN109216738 A CN 109216738A CN 201810892324 A CN201810892324 A CN 201810892324A CN 109216738 A CN109216738 A CN 109216738A
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- unit
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- fuel
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- 239000000446 fuel Substances 0.000 title claims abstract description 127
- 239000007788 liquid Substances 0.000 claims abstract description 72
- 239000001257 hydrogen Substances 0.000 claims abstract description 66
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 66
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000003054 catalyst Substances 0.000 claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 55
- 238000005406 washing Methods 0.000 claims description 37
- 238000010992 reflux Methods 0.000 claims description 31
- 238000000746 purification Methods 0.000 claims description 25
- 239000002699 waste material Substances 0.000 claims description 24
- 238000007664 blowing Methods 0.000 claims description 15
- 229910052744 lithium Inorganic materials 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 59
- 239000000243 solution Substances 0.000 description 17
- 229910000033 sodium borohydride Inorganic materials 0.000 description 10
- 239000012279 sodium borohydride Substances 0.000 description 10
- 150000002431 hydrogen Chemical class 0.000 description 9
- 230000002572 peristaltic effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000001802 infusion Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 210000003934 vacuole Anatomy 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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
-
- 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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a fuel cell system. The catalyst unit is filled in the second accommodating inner cavity of the system and comprises a carrier layer and a catalyst layer loaded on the carrier layer, the carrier layer is curled to form a plurality of fuel circulation channels, fuel enters the second accommodating inner cavity from the liquid inlet and contacts with the catalyst layer in the process of flowing through the fuel circulation channels, the contact path is longer at the moment, the characteristics of high temperature and the like which are beneficial to hydrogen generation reaction can be kept, and the reaction is quicker and more sufficient. The first housing and the second housing are nested in the first housing, a first accommodating space for accommodating hydrogen is formed between the first housing and the second housing, the sectional area of the first accommodating space is large, so that the air flow speed is reduced, in addition, the first accommodating space is favorable for heat dissipation, gas-liquid separation is carried out by turning back and gravity of air flow, the separation efficiency is improved, the energy density and the power density of a fuel cell system are finally improved, and the fuel cell system can stably work for a long time.
Description
Technical field
The invention belongs to field of fuel cell technology, and in particular to a kind of fuel cell system, in particular to a kind of hectowatt
The portable sodium borohydride fuel cell system of grade.
Background technique
Fuel cell technology is the most potential technology for becoming next-generation non-renewable energy after fossil fuel.It is will to change
Can be converted into electric energy, and power generation process is not limited by Carnot Engine circulation, and energy conversion efficiency is high.Meanwhile fuel electricity
Pond or a kind of clean, environmental-friendly generation mode, do not generate harmful substance.For opposite battery, fuel cell
Energy density is very high, and without waiting for charging.
However due to the various system additional components of fuel cell so that the power density of entire fuel cell system compared with
It is low, mostly in the level of tens watts of grades of watt grade, due to the basis weight of gaseous state hydrogen-storing device, so that fuel cell overall power
Density is lower.Currently, because sodium borohydride produces, hydrogen process is simple, and system is simple, and production hydrogen speed is adjustable, mostly uses configuration sodium borohydride
The fuel cell of hydrogen-feeding system.
For example, Chinese patent literature CN203085685U discloses a kind of preparing hydrogen by sodium borohydride hydrolysis fuel cell, packet
Fluid reservoir, infusion pump, reactor tank, clarifier and cool-heat-exchanger are included, is fixed with cool-heat-exchanger in fluid reservoir；Infusion pump passes through
Pipeline pump NaBO4Into reactor tank, the water cooling tube of cool-heat-exchanger protrudes into reactor tank solution；Catalyst is placed in reactor tank
Frame, reagent adding mouth, catalyst are placed on catalyst support, and catalyst support is the stainless steel cloth being fixed in reactor tank, reaction
Tank leads to cool-heat-exchanger jet chimney, and the gas outlet pipeline of cool-heat-exchanger connects clarifier, and the gas outlet of clarifier is logical
It connects for hydrogen fuel cell air inlet.
In above-mentioned technology, catalyst is placed on catalyst support, and catalyst support is the stainless steel wire being fixed in reactor tank
Net, such mode will lead to fuel and catalyst insufficient contact, to influence the energy density and power of fuel cell system
Density.
Summary of the invention
The technical problem to be solved by the present invention is to existing fuel cell systems there are energy density and power density are low, no
The defect that can be worked long hours, thus provide a kind of energy density and power density it is high, can long-time stable trouble free service
Fuel cell system.
In order to solve the above technical problems, the technical solution of the present invention is as follows:
A kind of fuel cell system, including the device for producing hydrogen and fuel cell pile being sequentially communicated, the device for producing hydrogen, packet
It includes, first shell and nested second shell in the inner are formed between the first shell and the second shell for accommodating hydrogen
First accommodating space of gas, the second shell include the second accommodating inner cavity and are connected to and are set to second accommodating inner cavity
Inlet in the second shell；
Catalyst elements, be filled in it is described second accommodating in it is intracavitary, the catalyst elements include carrier layer and are carried on
Catalyst layer thereon, the carrier layer curl into several fuel circulation passages, and fuel enters described the from the inlet
Two accommodating inner cavities, and during flowing through the fuel circulation passage with the catalyst layer contacts, generate hydrogen, hydrogen into
Enter in first accommodating space.
It further, further include purification device, purification device includes the reflux unit being sequentially communicated and gas washing unit, described
Reflux unit is connected to first accommodating space, and hydrogen comes out from first accommodating space, and flows successively through the reflux
Unit and gas washing unit；
Along the axial direction of the reflux unit and gas washing unit, intracavitary interval setting in the reflux unit and gas washing unit
Several perforated baffles；
Second solenoid valve is set between the reflux unit and gas washing unit.
Further, further include primary purifying unit, be set between first accommodating space and the purification device,
So that the hydrogen in first accommodating space enters in the purification device after the purification of the primary purifying unit.
Preferably, the primary purifying unit, including close to first accommodating space and the air outlet section that communicates therewith；
And it is filled in the porous layer of resistance to strong base material in the air outlet section.
Further, further include liquid storage unit, inside hold fuel, and be connected to the inlet；
Supply unit is set between the liquid storage unit and inlet, and fuel is delivered to from the liquid storage unit
In first accommodating space.
Preferably, the liquid storage unit includes the cubic type shell of built-in fuel cavity, cubic type shell side
It is upper to have towards fuel cavity recess, the groove for placing the gas washing unit；
The device for producing hydrogen and the ipsilateral and close cubic type housing central section of the groove are arranged, the first shell
Upper end the reflux unit is set, waste collection unit is arranged in lower end；
The fuel cell pile, the hydrogen inlet of the fuel cell pile is arranged in cubic type shell opposite side
It is connected to the hydrogen outlet of the gas washing unit.
Further, further include heat-sink unit, along the axial direction of the first shell, be arranged at intervals at the first shell
On；
First blowing unit is set to one side close to the heat-sink unit, to dry towards the heat-sink unit.
Preferably, the heat-sink unit is cooling fin；
The first shell is outer sleeve；
The second shell is inner sleeve；
The carrier layer is foam nickel layer, and the catalyst layer is Co-P-B three-element catalytic oxidant layer；
First blowing unit is fan.
Further, further include liquid outlet, be oppositely arranged with the inlet, and be connected to second accommodating inner cavity；
Liquid collecting unit is set between the first shell and liquid outlet, with collect reaction after fuel, and from it is described go out
The discharge of liquid mouth；
Waste collection unit is connected to the liquid outlet, so that the fuel after reaction enters the waste collection unit；
First solenoid valve, is set between the liquid collecting unit and liquid outlet or the liquid outlet and the waste collection
Between unit.
Further, further include lithium battery, be set to the fuel cell pile side close to the liquid storage unit, and with
The fuel cell pile connection, for the power supply before fuel cell pile starting, and when the fuel cell electricity
After heap starting, charge for the lithium battery；
In control system, with the supply unit, the first solenoid valve, second solenoid valve, fuel cell pile, the second accommodating
Chamber, the connection of the first blowing unit, to control switch, the fuel of the supply unit, the first solenoid valve and second solenoid valve
The temperature acquisition of battery stack, the second accommodating pressure acquisition of inner cavity, first blowing unit switch.
The above technical solution of the present invention has the following advantages over the prior art:
(1) catalyst elements are filled in intracavitary in the second accommodating, the catalysis by fuel cell system provided by the present invention
Agent unit includes that carrier layer and load catalyst layer thereon, carrier layer curl into several fuel circulation passages, and in addition the
Two accommodating inner cavities are smaller relative to the first accommodating intracavity section product, and fuel enters the second accommodating inner cavity from inlet, and is flowing through
With catalyst layer contacts during fuel circulation passage, it is longer to contact path at this time, is able to maintain and is conducive to hydrogen and reacts
The characteristics such as higher temperature, make reaction more rapidly and sufficiently.First shell and nested second shell in the inner are set simultaneously, the
The first accommodating space for accommodating hydrogen is formed between one shell and second shell, the first accommodating space sectional area is larger, thus
Air velocity is slowed down, the first accommodating space is conducive to heat dissipation in addition, turning back using air-flow carries out gas-liquid separation with gravity, improves
Separative efficiency ultimately provides fuel cell system energy density and power density, and can make its long-term stable work.
(2) fuel cell system provided by the present invention reacts the hydrogen of generation after the first accommodating inner cavity gas-liquid separation,
The purification device for flowing successively through reflux unit and gas washing unit composition, completes hydrogen impurity and purification.Along reflux unit and gas washing list
The axial direction of member, several perforated baffles are arranged in intracavitary interval in the two, hydrogen are dispersed into many minute bubbles by the baffle, greatly
It is big to increase specific surface area, removal of impurities and radiating efficiency are promoted, keeps gas purification efficiency higher.
(3) fuel cell system provided by the present invention is opened by the way that the first solenoid valve is arranged using its periodic brief
Discharging of waste liquid is carried out, while completing the final separation of waste liquid and institute's hydrogen, the pressure of generation can be such that reflux unit assembles
Solution is back to the first accommodating inner cavity, not only makes system more safety and stability, also makes the reaction assembled after return pipe purified hydrogen
Solution is back to the first accommodating inner cavity, further improves reaction efficiency.By being arranged between reflux unit and gas washing unit
Second solenoid valve prevents the acid wash liquid in gas washing unit to be back to the first accommodating inner cavity and the second accommodating inner cavity and leads using it
Cause catalyst inactivation.
(4) fuel cell system provided by the present invention is arranged primary net between the first accommodating space and purification device
Change unit, the interior porous layer of resistance to strong base material of filling further carries out gas-liquid separation to the gas of the first accommodating inner cavity, effectively prevents
Only solution enters purification device with gas, improves the reaction efficiency and stability of system.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the right view of fuel cell system in the embodiment of the present invention 1；
Fig. 2 is the left view of fuel cell system in Fig. 1；
Fig. 3 is the outside drawing of device for producing hydrogen in fuel cell system in Fig. 1；
Fig. 4 is the structural schematic diagram of device for producing hydrogen in fuel cell system in Fig. 1；
Fig. 5 is the structural schematic diagram of the device for producing hydrogen with heat-sink unit in fuel cell system in Fig. 1；
Fig. 6 is the structural schematic diagram of catalyst elements in device for producing hydrogen in Fig. 3；
Fig. 7 is the structural schematic diagram of purification device in device for producing hydrogen in Fig. 1；
Appended drawing reference:
1- inlet；2- primary purifying unit；3- liquid outlet；The first solenoid valve of 4-；5- second shell；5-1- second is accommodated
Inner cavity；6- first shell；The first accommodating space of 6-1-；6-2- gas vent；7- heat-sink unit；The first air inlet of 8-；9- second
Solenoid valve；The second gas outlet 10-；11- perforated baffle；12- reflux unit；13- supply unit；The first blowing unit of 14-；15-
Connecting pipeline；16- waste collection unit；17- gas washing unit；18- catalyst elements；18-1- fuel circulation passage；19- liquid collecting
Unit；20- liquid storage unit；21- fuel cell pile；22- control system；23- Voltage stabilizing module；The second blowing unit of 24-；25-
Lithium battery.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
A kind of fuel cell system is present embodiments provided, as shown in Figure 1, Figure 2 and shown in Fig. 5, including the hydrogen manufacturing being sequentially communicated
Device and fuel cell pile 21, for example, fuel cell pile 21 is hydrogen-oxygen fuel cell pile, device for producing hydrogen includes first shell
Body 6 and nested second shell 5 in the inner form first for accommodating hydrogen and hold between the first shell 6 and second shell 5
A 6-1 is emptied, the second shell 5 includes the second accommodating inner cavity 5-1 and is connected to and is set to the second accommodating inner cavity 5-1
Inlet 1 in the second shell 5；In the present embodiment, first shell 6 is outer sleeve, and second shell 5 is inner sleeve, tool
Body is equipped with inlet 1 above inner sleeve, be equipped with inside inner sleeve it is as shown in FIG. 6 be curled into rectangle it is columned more
Pore catalyst, outer sleeve top are equipped with gas vent 6-2, are equipped with leakage fluid dram below outer sleeve；
Catalyst elements 18 are filled in the second accommodating inner cavity 5-1, and catalyst elements 18 include carrier layer and are carried on it
On catalyst layer, carrier layer curls into several fuel circulation passage 18-1, and fuel enters the second accommodating inner cavity from inlet 1
5-1, and hydrogen is generated with catalyst layer contacts during flowing through fuel circulation passage 18-1, hydrogen enters the first accommodating
In space.In the present embodiment, carrier layer is foam nickel layer, and catalyst layer is Co-P-B three-element catalytic oxidant layer；Specifically, as schemed
Shown in 6, catalyst elements 18 are cylindric catalyst cartridge.
In above-mentioned fuel cell system, catalyst elements 18 are filled in the second accommodating inner cavity 5-1, the catalyst elements
Several fuel circulation passage 18-1 are curled into including carrier layer and load catalyst layer thereon, carrier layer, in addition second
It is smaller relative to the first accommodating inner cavity 6-1 sectional area to accommodate inner cavity 5-1, fuel enters the second accommodating inner cavity 5-1 from inlet 1,
And with catalyst layer contacts during flowing through fuel circulation passage 18-1, contact path is longer at this time, is able to maintain and is conducive to
The characteristics such as the higher temperature that hydrogen reacts keep reaction more rapidly and abundant.First shell 6 and nesting are set simultaneously in the inner
Second shell 5, the first accommodating space 6-1 for accommodating hydrogen, the first accommodating are formed between first shell 6 and second shell 5
Space 6-1 sectional area is larger, to slow down air velocity, the first accommodating space 6-1 is conducive to heat dissipation, is rolled over using air-flow in addition
It returns and carries out gas-liquid separation with gravity, improve separative efficiency, ultimately provide fuel cell system energy density and power density, and
It can make its long-term stable work.
As shown in fig. 7, further including purification device, including the reflux unit 12 and gas washing unit 17 being sequentially communicated, reflux is single
Member 12 is connected to the first accommodating space 6-1, such as the first air inlet 8 of reflux unit 12 is connected to the first accommodating space 6-1, hydrogen
Gas comes out from the first accommodating space 6-1, and flows successively through reflux unit 12 and gas washing unit 17；Along reflux unit 12 and gas washing list
The axial direction of member 17, several perforated baffles 11 are arranged in intracavitary interval in reflux unit 12 and gas washing unit 17；Second solenoid valve 9,
It is set between reflux unit 12 and gas washing unit 17, specifically, reflux unit 12 and gas washing unit 17 pass through connecting pipeline 15
Connection, reflux unit 12 are return pipe, and gas washing unit 17 is scrubber tube, and second solenoid valve 9 is check valve, are prevented in scrubber tube
Washing lotion is back to return pipe, and then is back to device for producing hydrogen, leads to catalyst inactivation；More specifically, return pipe be one section about
Diameter 2cm, long 10cm, straight pipe of the top and bottom with perforated baffle, scrubber tube is about diameter 4cm, long 20cm, top
There is the straight pipe of perforated baffle with bottom, scrubber tube is provided with high price weak acid and the mixed liquor of middle strong acid is removed as gas washing liquid
Alkaline matter in hydrogen, for example, by using concentration than the tartaric acid and phosphoric acid mixed liquor for 3:1, liquid level is apart from scrubber tube
The distance of two gas outlets 10 is 8cm, prevents liquid level excessively close, and partially liq enters gas outlet when vacuole is broken, hence into fuel
Battery stack damages fuel cell pile.
By above-mentioned setting, the hydrogen of generation is reacted after the first accommodating inner cavity 6-1 gas-liquid separation, it is single to flow successively through reflux
The purification device that member 12 and gas washing unit 17 form, completes hydrogen impurity and purification.Along the axis of reflux unit 12 and gas washing unit 17
To several perforated baffles 11 are arranged in intracavitary interval in the two, hydrogen are dispersed into many minute bubbles by the baffle 11, significantly
Increase specific surface area, promotes removal of impurities and radiating efficiency, keep gas purification efficiency higher.
Embodiment 2
The present embodiment provides a kind of fuel cell systems, on the basis of above-described embodiment 1, as shown in figure 3, in order to
The gas of one accommodating space carries out gas-liquid separation, effectively prevent solution to enter purification device with gas, improves the reaction of system
Efficiency and stability further include primary purifying unit 2, are set between the first accommodating space 6-1 and purification device, so that first
Hydrogen in accommodating space 6-1 enters in purification device after the purification of primary purifying unit 2；Specifically, primary purifying unit
2, including close to the first accommodating space 6-1 and the air outlet section that communicates therewith；And it is filled in the porous resistance to strong base material in air outlet section
Layer, for example, porous resistance to strong base material nickel foam, air outlet section caliber can not be too small, and otherwise drop, which is easy blocking nozzle, makes to produce gas richness
Containing a large amount of alkali droplets；Also can not be excessive, otherwise filtering material can due to the excessive a large amount of absorption near exit alkali droplets of volume,
In view of the volume of device for producing hydrogen, air outlet section is in charge of diameter using two.
Embodiment 3
The present embodiment provides a kind of fuel cell systems, further include liquid storage unit on the basis of above-described embodiment 1 or 2
20, for example, fuel cavity inside hold fuel, and are connected to inlet 3；
Supply unit 13, for example, infusion pump, preferably miniature peristaltic pump, are precisely controlled amount of infusion, are set to liquid storage unit
Between 20 and inlet 3, fuel is delivered in the first accommodating space 6-1 from liquid storage unit 20；
More specifically, liquid storage unit 20 includes the cubic type shell of built-in fuel cavity, cube as shown in Fig. 1,2 or 4
Have on shell body side towards fuel cavity recess, the groove for placing gas washing unit 17；Device for producing hydrogen and groove it is ipsilateral and
It is arranged close to cubic type housing central section, reflux unit 12 is arranged in the upper end of first shell 6, and waste collection unit is arranged in lower end
16, it may be, for example, waste liquid chamber；Cubic type shell opposite side is arranged fuel cell pile 21, the hydrogen of fuel cell pile 21 into
Mouth is connected to the hydrogen outlet of gas washing unit 17.
Further, further include heat-sink unit 7, along the axial direction of first shell 6, be arranged at intervals in first shell 6；First
Blowing unit 14 is set to one side close to heat-sink unit 7, to dry towards heat-sink unit 7；Specifically, heat-sink unit 7 is scattered
Backing；First blowing unit 14 is fan.
Embodiment 4
It further includes liquid outlet that the present embodiment provides a kind of fuel cell systems on the basis of above-described embodiment 1,2 or 3
3, it is oppositely arranged with the inlet, and be connected to second accommodating inner cavity；
Liquid collecting unit 19, for example, conical hopper are set between first shell 6 and liquid outlet 3, after collecting reaction
Fuel, and be discharged from liquid outlet 3；
Waste collection unit 16, for example, waste liquid chamber are connected to the liquid outlet 3, so that the fuel after reaction enters institute
State waste collection unit 16；
First solenoid valve 4, is set between liquid collecting unit 19 and liquid outlet 3 or the liquid outlet 3 and the waste collection
Between unit 16.
Embodiment 5
The present embodiment provides a kind of fuel cell systems, further include lithium electricity on the basis of above-described embodiment 1,2,3 or 4
Pond 25, such as 5000mAh lithium battery are set to the fuel cell pile side close to the liquid storage unit, and with the combustion
Battery stack connection is expected, for the power supply before fuel cell pile starting, and when the fuel cell pile starts
Afterwards, it charges for the lithium battery；
Control system 22 is held with the supply unit 13, the first solenoid valve, second solenoid valve, fuel cell pile, second
Inner cavity, the connection of the first blowing unit are set, to control the switch, described of the supply unit, the first solenoid valve and second solenoid valve
The temperature acquisition of fuel cell pile, the second accommodating pressure acquisition of inner cavity, first blowing unit switch.
Voltage stabilizing module is set to above the fuel cell pile, to controller output and input voltage；
Second blowing unit 24 is set to the fuel cell pile side, cools down for it.
The device is pumped into device for producing hydrogen inner sleeve by sodium borohydride solution, from fuel cavity, and inner sleeve is provided with by rectangle
It is curled into columned porous catalyst, in the outer sleeve initial gross separation of device for producing hydrogen, waste reaction solution passes through for the reactant of generation
Lower section leakage fluid dram is discharged into waste liquid chamber, reacts the hydrogen of generation from the gas outlet above device for producing hydrogen outer sleeve, through return pipe, gas washing
Enter in fuel cell after pipe purified treatment.The present invention has high energy density, power density height, works long hours and stablize peace
Entirely, the advantages that compact-sized, the energy particularly suitable as packaged type equipment.
Test example
One, using above-mentioned fuel cell system carry out test process it is as follows: using the miniature peristaltic pump of flow velocity 4ml/min
The sodium hydroxide solution of the sodium borohydride of 20% mass fraction and 5% mass fraction is passed through in device for producing hydrogen, controller is low
Peristaltic pump is opened when 50kpa, closes peristaltic pump peristaltic pump when being higher than 50kpa pressure；Keep draining solenoid valve normal when lower than 70kpa
It closes, is opened draining solenoid valve 0.1 second when being higher than 70kpa；In addition, every enforced opening draining solenoid valve 0.1 second 15 seconds.
Test result is as follows: under the 8h working time, consuming solution 1248ml, hydrogen-producing speed 1.4L/min, output voltage
12V, output electric current 10A or so do not have found that output power decreased significantly and liquid level rises only 0.5cm in scrubber tube.It again will be through
It crossing the purified hydrogen of purification device and passes through drexel bottle, the water pH in drexel bottle does not have significant change, maintains 7 or so always,
The long-time stable for demonstrating the hydrogen purification device is effective.System weight is respectively device for producing hydrogen 360g, hydrogen-oxygen fuel cell
Pile 240g, fan 40g, draining solenoid valve 135g, scrubber tube 72g, gas washing liquid 150g, miniature peristaltic pump 98g, fuel cartridge
160g, system shell 423g, fuel 1373g, gas piping 30g, lithium battery 90g, gross weight 3170g, energy density are about
301Wh/kg is much higher than existing hectowatt grade sodium borohydride fuel cell technology.
Secondly, tested using the sodium borohydride solution of 30% mass fraction.Test result is as follows: the 8h working time
Under, solution 823ml, hydrogen-producing speed 1.4L/min are consumed, liquid level rises only 0.4cm in scrubber tube.But used 30% matter
The sodium borohydride solution of score is measured, essentially sodium borohydride saturated solution passes through drain after device for producing hydrogen reacts at normal temperature
Solenoid valve is discharged into waste liquid chamber, temperature decline, and reaction product is easily precipitated, and is easy blocking drain line and occupies waste liquid cavity space,
Thermal insulation material coating leakage fluid dram to waste liquid lumen road can be used, and the ethylene glycol solution of 5% mass fraction is added in waste liquid chamber, is prevented
Crystallization is precipitated in waste liquid.
Thirdly, remove return pipe, device for producing hydrogen gas outlet is directly connected with second solenoid valve.Test result is as follows: 2h work
Make under the time, scrubber tube liquid level rises nearly 8cm, has been unable to complete gas washing task, need to stop working, and replaces scrubber tube.
Four, remove cooling fin and radiator fan.Test result is as follows: under the 8h working time, scrubber tube liquid level rises 4cm
Left and right, scrubber system works reluctantly, and gas washing liquid liquid level is excessively high easily partially acidic gas washing liquid is occurred and enter gas circuit pile is caused to damage.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of fuel cell system, including the device for producing hydrogen and fuel cell pile being sequentially communicated, which is characterized in that the system
Hydrogen production device, including,
First shell and nested second shell in the inner, form between the first shell and the second shell for accommodating hydrogen
First accommodating space of gas, the second shell include the second accommodating inner cavity and are connected to and are set to second accommodating inner cavity
Inlet in the second shell；
Catalyst elements, be filled in it is described second accommodating in it is intracavitary, the catalyst elements include carrier layer and load thereon
Catalyst layer, the carrier layer curls into several fuel circulation passages, and fuel enters described second from the inlet and holds
Inner cavity is set, and generates hydrogen with the catalyst layer contacts during flowing through the fuel circulation passage, hydrogen enters institute
It states in the first accommodating space.
2. fuel cell system according to claim 1, which is characterized in that further include,
Purification device, including the reflux unit and gas washing unit being sequentially communicated, the reflux unit and first accommodating space
Connection, hydrogen comes out from first accommodating space, and flows successively through the reflux unit and gas washing unit；
Along the axial direction of the reflux unit and gas washing unit, intracavitary interval setting is several in the reflux unit and gas washing unit
Perforated baffle；
Second solenoid valve is set between the reflux unit and gas washing unit.
3. fuel cell system according to claim 2, which is characterized in that further include,
Primary purifying unit is set between first accommodating space and the purification device, so that first accommodating is empty
Interior hydrogen enters in the purification device after the purification of the primary purifying unit.
4. fuel cell system according to claim 3, which is characterized in that the primary purifying unit includes close to described
First accommodating space and the air outlet section communicated therewith；And it is filled in the porous layer of resistance to strong base material in the air outlet section.
5. the fuel cell system according to any one of claim 2-4, which is characterized in that further include,
Liquid storage unit inside holds fuel, and is connected to the inlet；
Supply unit is set between the liquid storage unit and inlet, fuel is delivered to from the liquid storage unit described
In first accommodating space.
6. fuel cell system according to claim 5, which is characterized in that the liquid storage unit includes built-in fuel cavity
Cubic type shell has on cubic type shell side towards fuel cavity recess, for placing the gas washing list
The groove of member；
The device for producing hydrogen and the groove it is ipsilateral and close to the cubic type housing central section be arranged, the first shell it is upper
The reflux unit is arranged in end, and waste collection unit is arranged in lower end；
The fuel cell pile, the hydrogen inlet of the fuel cell pile and institute is arranged in cubic type shell opposite side
State the hydrogen outlet connection of gas washing unit.
7. fuel cell system according to claim 1 to 6, which is characterized in that further include,
Heat-sink unit is arranged at intervals in the first shell along the axial direction of the first shell；
First blowing unit is set to one side close to the heat-sink unit, to dry towards the heat-sink unit.
8. fuel cell system according to claim 7, which is characterized in that the heat-sink unit is cooling fin；
The first shell is outer sleeve；
The second shell is inner sleeve；
The carrier layer is foam nickel layer, and the catalyst layer is Co-P-B three-element catalytic oxidant layer；
First blowing unit is fan.
9. the fuel cell system according to any one of claim 5-8, which is characterized in that further include,
Liquid outlet is oppositely arranged with the inlet, and is connected to second accommodating inner cavity；
Liquid collecting unit is set between the first shell and liquid outlet, to collect the fuel after reaction, and from the liquid outlet
Discharge；
Waste collection unit is connected to the liquid outlet, so that the fuel after reaction enters the waste collection unit；
First solenoid valve, is set between the liquid collecting unit and liquid outlet or the liquid outlet and the waste collection unit
Between.
10. fuel cell system according to claim 9, which is characterized in that further include,
Lithium battery is set to the fuel cell pile side close to the liquid storage unit, and connects with the fuel cell pile
It connects, for the power supply before fuel cell pile starting, and after fuel cell pile starting, for the lithium electricity
Pond charging；
Control system, with the supply unit, the first solenoid valve, second solenoid valve, fuel cell pile, second accommodating inner cavity,
First blowing unit connection, to control switch, the fuel cell of the supply unit, the first solenoid valve and second solenoid valve
The temperature acquisition of pile, the second accommodating pressure acquisition of inner cavity, first blowing unit switch.
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| CN201810892324.9A CN109216738A (en) | 2018-08-07 | 2018-08-07 | Fuel cell system |
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| CN201810892324.9A CN109216738A (en) | 2018-08-07 | 2018-08-07 | Fuel cell system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111333028A (en) * | 2020-04-28 | 2020-06-26 | 上海博氢新能源科技有限公司 | Multi-return-stroke reforming hydrogen production reactor |
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Effective date of registration: 20220520 Address after: 150077 No. 6, floor 1-2, building 11, No. 872 Lijiang Road, Daoli District, Harbin, Heilongjiang Province Applicant after: Harbin Yuxin fuel energy technology Co.,Ltd. Address before: 518065 2-28-5a, blue coast, Nanshan District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN YAHUA WEIYI TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20230419 Address after: Room 212, 2nd Floor, Harbin Institute of Technology Science Park Building, No. 434 Youyou Street, Nangang District, Harbin City, Heilongjiang Province, 150006 Applicant after: Harbin Haiwei Zhixin Technology Co.,Ltd. Address before: 150077 No. 6, floor 1-2, building 11, No. 872 Lijiang Road, Daoli District, Harbin, Heilongjiang Province Applicant before: Harbin Yuxin fuel energy technology Co.,Ltd. |
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Correction item: Applicant|Address Correct: Harbin Yuxin fuel energy technology Co.,Ltd.|150077 No. 6, floor 1-2, building 11, No. 872 Lijiang Road, Daoli District, Harbin, Heilongjiang Province False: Harbin Haiwei Zhixin Technology Co.,Ltd.|Room 212, 2nd Floor, Harbin Institute of Technology Science Park Building, No. 434 Youyou Street, Nangang District, Harbin City, Heilongjiang Province, 150006 Number: 18-01 Volume: 39 |
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Effective date of registration: 20230606 Address after: Room 212, 2nd Floor, Harbin Institute of Technology Science Park Building, No. 434 Youyou Street, Nangang District, Harbin City, Heilongjiang Province, 150006 Applicant after: Harbin Haiwei Zhixin Technology Co.,Ltd. Address before: No. 6, Floor 1-2, Building 11, No. 872, Lijiang Road, Daoli District, Harbin City, Heilongjiang Province, 150006 Applicant before: Harbin Yuxin fuel energy technology Co.,Ltd. |