WO2006013752A1 - Mécanisme d’alimentation en combustible pour réservoir à combustible - Google Patents

Mécanisme d’alimentation en combustible pour réservoir à combustible Download PDF

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Publication number
WO2006013752A1
WO2006013752A1 PCT/JP2005/013657 JP2005013657W WO2006013752A1 WO 2006013752 A1 WO2006013752 A1 WO 2006013752A1 JP 2005013657 W JP2005013657 W JP 2005013657W WO 2006013752 A1 WO2006013752 A1 WO 2006013752A1
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WO
WIPO (PCT)
Prior art keywords
fuel
water
stock solution
fuel cell
supply pipe
Prior art date
Application number
PCT/JP2005/013657
Other languages
English (en)
Japanese (ja)
Inventor
Toshiaki Takasu
Hiroto Inoue
Suguru Nakao
Yasuo Yokota
Yukihiro Iwata
Makoto Iyoda
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Publication of WO2006013752A1 publication Critical patent/WO2006013752A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—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
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04186—Arrangements for control of reactant parameters, e.g. pressure or concentration of liquid-charged or electrolyte-charged reactants
    • H01M8/04194—Concentration measuring cells
    • 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
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
    • 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

Definitions

  • the present invention relates to a fuel supply mechanism for a fuel cell capable of stably supplying a predetermined concentration of liquid fuel from a liquid fuel tank to a fuel cell main body.
  • DMFC Direct Methanol Fuel Cell
  • DMFC Direct Methanol Fuel Cell
  • methanol which is a liquid fuel
  • This is a circulation type fuel system in which the recovered fuel is again collected in the fuel tank.
  • a methanol aqueous solution with a concentrated methanol concentration is used as a force fuel that reacts water and methanol in a molar ratio of 1: 1, there is a crossover in which methanol permeates the electrolyte membrane and reaches the force sword side. Since it is generated and the output is reduced, it is preferable in terms of power generation efficiency that the concentration of the aqueous methanol solution supplied to the anode does not exceed a predetermined value.
  • the fuel cell system shown in Patent Document 1 uses a pump as a means for supplying methanol and water, respectively.
  • the pump is driven by the electric power generated by the fuel cell main body, which causes a decrease in the output of the fuel cell and a problem that the system becomes large because the pump is attached.
  • the amount of liquid transported per unit time by the pump is unstable. This is due to the pump drive system, service life, and decrease in power supply. Therefore, there is a problem that the mixing ratio is not stable when the fuel stock solution and the water are respectively supplied by a pump and the mixed fuel is used. This can be resolved by further providing a fuel concentration sensor and control circuit, but a fuel concentration sensor, control circuit, and mixing device are required, making the system complex and unsuitable for power supplies for small equipment. .
  • the technical problem to be solved by the present invention is to stably supply liquid fuel of a predetermined concentration to the fuel cell body without using auxiliary equipment such as a pump, a concentration sensor, and a control circuit. It is an object of the present invention to provide a fuel supply mechanism for a small-sized fuel cell.
  • the present invention provides a fuel supply mechanism for a fuel cell having the following configuration.
  • a liquid obtained by diluting a fuel stock solution with water in a fuel cell body having an anode, a force sword, and an electrolyte membrane disposed between the anode and the force sword is obtained by diluting a fuel stock solution with water in a fuel cell body having an anode, a force sword, and an electrolyte membrane disposed between the anode and the force sword.
  • a stock solution tank having a fuel concentration higher than that of the liquid fuel, and a stock solution container main body that contains the fuel stock solution, and a stock solution discharge port that is provided in the stock solution container main body and discharges the fuel stock solution,
  • a stock solution supply pipe for communicating one end with the stock solution discharge port of the stock solution tank and transporting the fuel stock solution discharged from the stock solution discharge port to the other end side by capillary action;
  • a water tank comprising: a water container main body for storing the water for diluting the fuel stock solution; and a water discharge port provided in the water container main body and for discharging the water;
  • a fuel supply mechanism for a fuel cell comprising: a water supply pipe having one end communicating with the water discharge port of the water tank and transporting the water discharged from the water discharge port to the other end side by capillary action.
  • the amount of the fuel stock solution transported per unit time by the stock solution supply pipe, and the amount of the water transported per unit time by the water supply pipe is provided in such a manner that the ratio is set to such a ratio that the fuel cell main body has a fuel concentration capable of generating power.
  • the fuel supply for a fuel cell according to the first aspect further includes a fuel mixing section, and the stock solution supply pipe and the water supply pipe communicate with the fuel mixing section. Provide the mechanism.
  • the fuel mixing section mixes the stock solution and water introduced by the stock solution supply pipe and the water supply pipe and transports them to the anode by capillary action.
  • a fuel supply mechanism for a fuel cell according to the third aspect, comprising a tube, is provided.
  • the stock solution tank is bent so that the intermediate portion is positioned higher than the liquid level of the fuel stock solution stored in the stock solution container body, and capillary action is performed.
  • a fuel supply mechanism for a single fuel cell according to the first aspect in which a stock solution introduction pipe for introducing the fuel stock solution into the stock solution outlet is provided inside the stock solution container main body.
  • the water tank is bent so that an intermediate portion is positioned higher than the liquid level of the water stored in the water container main body, and due to capillary action.
  • a fuel cell fuel supply mechanism according to a first aspect, further comprising a water introduction pipe for introducing the water into the water discharge port inside the water container main body.
  • the water intake port is provided at a position higher than the level of the water stored in the water tank and takes in the water generated from the power sword. In preparation for the water tank,
  • the fuel supply mechanism for a fuel cell according to the first aspect further includes a water recovery pipe that communicates the water intake and the power sword and transports water generated from the power sword by a capillary phenomenon. Provide.
  • a stock solution valve provided in each of the stock solution supply pipes and capable of independently opening and closing the stock solution supply pipe;
  • a control unit that further opens and closes the plurality of stock solution valves and the water valve independently to adjust the concentration of the liquid fuel supplied to the liquid fuel absorption unit.
  • a fuel supply mechanism for a fuel cell is provided.
  • the plurality of stock solution supply pipes are configured such that the amount of the fuel stock solution that can be transported per unit time varies depending on the capillary phenomenon.
  • a fuel cell fuel supply mechanism is provided.
  • the plurality of stock solution supply pipes are configured so that the amount of the fuel stock solution that can be transported per unit time is the same due to the capillary action.
  • a fuel supply mechanism for a fuel cell according to an eighth aspect is provided.
  • the liquid fuel provided in the anode so as to be in contact with the electrolyte membrane and in contact with the other end of the fuel supply pipe and conveyed by the fuel supply pipe
  • a fuel cell fuel supply mechanism according to a first aspect including a liquid fuel absorption portion including a porous body that absorbs fuel is provided.
  • the fuel supply mechanism for a fuel cell according to the eleventh aspect wherein the liquid fuel absorption portion is provided in the anode side separator of the fuel cell main body.
  • the stock solution supply pipe that transports the fuel stock solution contained in the stock solution tank by capillary action, and the water that carries the water contained in the water tank by capillary action. Since the supply pipe is used, the amount of liquid transported is determined by the shape of the stock solution supply pipe and the water supply pipe. Therefore, an auxiliary machine configuration for transporting liquid fuel is unnecessary. Thus, the concentration of the liquid fuel absorbed by the liquid fuel absorption portion can be adjusted to a predetermined value.
  • the stock solution supply pipe and the water supply pipe communicate with the fuel mixing section, it is not necessary to provide a device for mixing the stock solution and water. Further, according to the fourth aspect, since the liquid fuel mixed by the fuel mixing unit is conveyed to the anode by capillary action, an auxiliary device for supplying the mixed fuel to the anode is not required.
  • the intermediate part is bent so as to be positioned higher than the liquid level of the fuel stock solution or water. And water can be prevented from flowing out naturally.
  • the water generated by the force sword can be recovered and used, so there is no need to discharge the water to the outside. Therefore, moisture in the fuel cell system can be prevented.
  • the amounts of the fuel stock solution and the water that reach the liquid fuel absorption portion vary depending on which of the plurality of stock solution supply pipes and water supply pipes is opened.
  • the amount of fuel stock solution and water that can be transported per unit time can be determined uniformly according to the number of opened and closed fuel valves. Therefore, the transport amount of the fuel stock solution and water can be adjusted in multiple stages, and the concentration adjustment of the liquid fuel can be performed in a meticulous manner.
  • the porous body that absorbs fuel is provided at the other end of the fuel supply pipe that supplies fuel, by sucking the fuel in the fuel supply pipe, The fuel can be transported more smoothly.
  • FIG. 1 is a block diagram showing a configuration of a fuel cell system according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing a configuration of a stock solution tank used in the fuel cell system of FIG.
  • FIG. 3 is a cross-sectional view showing a configuration of a water tank used in the fuel cell system of FIG.
  • FIG. 4 is a block diagram showing a configuration of a fuel cell system according to a second embodiment of the present invention.
  • FIG. 5 is a block diagram showing a configuration of a fuel cell system according to a third embodiment of the present invention.
  • FIG. 6 is a block diagram showing a configuration of a fuel cell system according to a fourth embodiment of the present invention.
  • FIG. 7A is a cross-sectional view showing the configuration of a water tank used in the fuel cell system of FIG.
  • FIG. 7B is a cross-sectional view showing a configuration of a stock solution tank used in the fuel cell system of FIG.
  • FIG. 8A is a sectional view showing an initial state of the stock solution tank of FIG. 7B.
  • FIG. 8B is a diagram showing a state where water is supplied to the stock solution tank of FIG. 7B.
  • FIG. 9 is a graph showing the relationship between the amount of water supplied to the stock solution tank, the liquid fuel suction height and the liquid fuel liquid level height.
  • FIG. 1 shows a schematic configuration diagram of a fuel cell according to a first embodiment of the present invention.
  • the fuel cell system 1 includes a fuel cell body 2 that is a power generation unit that generates electricity by electrochemically converting the chemical energy of the fuel into electrical energy, and the fuel required for this power generation. Etc., and an auxiliary system such as a fuel supply mechanism for supplying the fuel cell body 2 to the fuel cell main body 2.
  • This fuel cell main body 2 uses a direct methanol fuel cell (DMFC) that uses a methanol aqueous solution, which is an example of an organic liquid fuel, as a fuel, and generates power by directly extracting protons from this methanol power. It is a fuel cell system.
  • DMFC direct methanol fuel cell
  • the fuel cell main body 2 includes an anode (fuel electrode) 3, a force sword (air electrode) 5, and a membrane electrode assembly 4.
  • the anode 3 performs an acid-acid reaction on the supplied methanol and performs a reaction (anode reaction) for extracting protons and electrons.
  • the electrons move to the force sword 5 through an external circuit (not shown) that electrically connects the anode 3 and the force sword 5, and the protons move to the force sword 5 through the membrane electrode assembly 4.
  • the cathode 5 is a reaction (force) that reduces oxygen supplied from the outside and protons that have moved from the anode 3 through the membrane electrode assembly 4 with electrons flowing through the external circuit to generate water. Sword reaction). In this way, the acid 3 reaction is performed at the anode 3 and the reduction reaction is performed at the power sword 5, respectively. ⁇ ⁇ Electricity is generated when electrons flow through the electrode wire.
  • the membrane electrode assembly 4 includes, for example, a naphthion produced by Dupont as an electrolyte membrane.
  • anode catalyst for the anode 3 is supported on one surface of the electrolyte membrane by dispersing platinum and ruthenium or an alloy of platinum and ruthenium on a carbon powder carrier.
  • an electrode / diffusion layer made of, for example, carbon paper is brought into close contact with the anode catalyst and the force sword catalyst, respectively, and then the anode separator 90 and the force sword side It is assembled by fixing to the housing via the separator 80.
  • the anode 3 includes a fuel supply port 6 and a water supply port 7 for supplying methanol and water necessary for carrying out the anode reaction to the inside of the anode. And an exhaust outlet 8 for exhausting carbon dioxide produced by the anode reaction from the inside.
  • the force sword 5 uses, for example, air to supply oxygen used for performing the force sword reaction, and an air supply port 9 for supplying the air to the inside thereof.
  • Water which is an example of a product generated by the power sword reaction
  • reaction And a discharge port 10 for discharging strong air.
  • This product may contain formic acid, methyl formate, and methanol (due to a crossover described later) in addition to the power that contains water as a main component.
  • the force sword side separator 80 has, for example, a thickness provided with a groove on one surface thereof. It consists of a plate-like body made of a non-conductive material that is flat in the direction. The force sword side separator and the membrane electrode assembly 4 are in contact with each other so as to press the surface on which the groove is provided against the force sword side surface of the membrane electrode assembly 4, and are surrounded by the groove and the membrane electrode assembly.
  • the area to be used is an air passage.
  • the anode-side separator 90 includes a sponge-like porous body 91 that can absorb a liquid, and is in contact with the end portions of the stock solution supply pipe 21 and the water supply pipe 31.
  • a sponge-like porous body 91 that can absorb a liquid, and is in contact with the end portions of the stock solution supply pipe 21 and the water supply pipe 31.
  • the end portions of the stock solution supply pipe 21 and the water supply pipe 31 are illustrated as being separated from each other. It is preferable that the ends of the tube 31 be provided in close proximity. With this configuration, it is possible to make the fuel concentration constant in the anode without generating the fuel concentration distribution in the anode.
  • the stock solution supply pipe 21 and the water supply pipe 31 are configured to send liquid by capillary action, absorb the liquid that has reached the anode separator, and downstream of the stock solution supply pipe 21 and the water supply pipe 31. A function of sucking liquid toward the side end portion is provided.
  • the porous body 91 provided in the anode side separator contacts the anode side surface of the membrane electrode assembly 4 and conveys the absorbed liquid to the membrane electrode assembly 4.
  • the anode side surface of the membrane electrode assembly is treated so as to have hydrophilicity, and absorbs the contacted liquid to advance the anode reaction.
  • auxiliary machine structure for supplying a methanol aqueous solution to the anode 3 of the fuel cell main body 2
  • auxiliary machine structure for supplying air to the power sword 5
  • a power sword 5 for supplying air to the power sword 5
  • auxiliary equipment configuration to collect the generated waste.
  • the auxiliary equipment configuration for supplying the fuel includes a high-concentration methanol aqueous solution that is a fuel stock solution or a stock solution tank 20 containing methanol, a stock solution tank 20 and an anode 3.
  • a stock solution supply pipe 21 for connecting water, a water tank 30 for containing water, and a water supply pipe 31 for connecting the water tank 30 and the anode are provided.
  • the stock solution tank 20 includes a stock solution container body 23 in which the fuel stock solution 100 is accommodated, a stock solution discharge port 27 for discharging the fuel stock solution 100 from the stock solution container body, and a stock solution container body 23. And a pressure adjusting mechanism 29 for keeping the pressure in the fuel stock solution 100 constant.
  • the container body 23 is a box-shaped container. Contains the fuel stock solution.
  • As the fuel stock solution 100 methanol, ethanol, dimethyl ether, and an aqueous solution thereof can be used. In this embodiment, a 63.8 wt% aqueous methanol solution is used.
  • the stock solution introduction pipe 24 is used to prevent the fuel stock solution from being naturally conveyed to the stock solution supply pipe 21 due to water pressure or the like.
  • Supply stock solution Specifically, the stock solution introduction pipe 24 is divided into a stock solution ascending portion 25 and a stock solution descending portion 26.
  • the stock solution rising portion 25 is disposed so that the upper end of the stock solution rising portion 25 is located above the liquid level when the fuel stock solution 100 is fully contained in the container body 23. With this configuration, it is possible to prevent the fuel stock solution 100 from naturally flowing into the stock solution supply pipe 21 due to the water pressure of the fuel stock solution.
  • the stock solution introduction pipe 24 supplies the fuel stock solution to the stock solution outlet 27 using the capillary phenomenon for the portion above the water surface of the fuel stock solution 100, when the water surface of the fuel stock solution is at the lowest position, that is, The height L1 from the lowest point of the container body is required to be a height at which the fuel stock solution can be sucked up by capillary action.
  • the fuel stock solution sucked up by the stock solution ascending portion 25 by capillarity descends the stock solution descending portion 26 and reaches the stock solution discharge port 27.
  • the stock solution lowering portion 26 is configured such that its radial dimension is larger than the radial size of the stock solution raising portion 25, and the fuel stock solution 100 sucked up by the stock solution raising portion 25 is easily lowered by gravity.
  • the inner surface of the stock solution lowering portion 26 is subjected to a hydrophilic treatment to reduce the contact angle with the fuel stock solution, thereby facilitating the lowering of the fuel stock solution 100.
  • the pressure adjusting mechanism 29 is configured by covering a plurality of pores with a selectively permeable membrane.
  • a selectively permeable membrane As the selectively permeable membrane, the permeability of the vaporized fuel is low, and the permeability of the atmosphere is preferably relatively high.
  • a fluorine-based FEP resin was used as the selectively permeable membrane.
  • the pressure in the stock solution tank 20 decreases.
  • the decrease in pressure in the stock solution tank 20 prevents the transportation of the fuel stock solution 100 by capillary force.
  • the stock solution supply pipe 21 is connected to a stock solution outlet 27 of the stock solution tank 20.
  • the undiluted solution supply pipe 21 and undiluted solution outlet 27 may be connected to each other via a connector (not shown) so as to be detachable.
  • the thrust for feeding the fuel stock solution in the stock solution supply pipe is a capillary phenomenon due to the surface tension of the fuel stock solution. The amount of can be determined.
  • the flow rate Q of the fluid moving through the capillaries by capillary action is determined by the following number (1).
  • r is the tube radius
  • S is the liquid surface tension
  • ⁇ is the contact angle
  • p is the density
  • 1 is the tube distance.
  • the flow rate of the fuel stock solution that passes through the stock solution supply pipe 21 is the material of the stock solution supply pipe 21.
  • the adjustment can be made by the design of the stock solution supply pipe 21. That is, by changing the radius of the stock solution supply pipe 21 and the hydrophilicity of the inner surface of the stock solution supply pipe 21 to change the contact angle between the pipe surface and the fuel stock solution, the fuel transported per unit time is changed.
  • the flow rate of the stock solution can be varied.
  • the water tank 30 includes a water container body 33 in which water 101 is stored, a water discharge port 38 for discharging the water 101 in the water container body 33, and water in the water container body 33.
  • Water inlet pipe 34 that leads 101 to the water outlet 38, water inlet 37 for taking in water discharged from the power sword of the fuel cell body, and pressure adjustment to keep the pressure in the fuel stock solution 100 constant
  • the container body 33 is a box-shaped container and contains water.
  • the water introduction pipe 34 is configured to prevent water from being continuously discharged from the water discharge port 38 due to water pressure or the like, and supplies the fuel stock solution to the water discharge port 38 by using a capillary phenomenon.
  • the water introduction pipe 34 is divided into a water rising part 35 and a water falling part 36.
  • the water rising portion 35 is arranged so that the upper end of the water rising portion 35 is located above the liquid surface when the water 101 is fully contained in the container body 33, and the fuel stock solution 101 is naturally placed in the water supply pipe 31. Prevent inflow. Since the water introduction pipe 34 supplies water to the water supply pipe 31 by utilizing capillary action in the portion above the water surface, the water introduction pipe 34 is located at the lowest position, that is, at the bottom of the container body.
  • the height L2 from the lower point is required to be a height that can absorb water by capillary action.
  • the water sucked up by the capillarity in the water rising portion 35 descends the water descending portion 36 and introduces water 101 into the water supply pipe 31.
  • the water descending portion 36 is configured such that its radial dimension is larger than the radial dimension of the water ascending portion 35, so that the water can easily descend due to gravity.
  • the inner tube can be processed to be hydrophilic, so that the water can be easily lowered.
  • the pressure adjusting mechanism 39 is configured by covering a plurality of pores with a selectively permeable membrane.
  • a selectively permeable membrane As the selectively permeable membrane, the permeability of the vaporized water is low, and the permeability of the atmosphere is relatively high.
  • a fluorine-based FEP resin was used as the selectively permeable membrane.
  • the pressure in the water tank 30 decreases.
  • the pressure reduction in the water tank 30 prevents the water 101 from being transported by capillary force.
  • the pressure in the water tank 30 is kept constant by the pressure adjusting mechanism 39, so that the water 101 is stably conveyed by the capillary force.
  • the water discharge port 38 is connected to the vicinity of the bottom of the water tank 30.
  • the water supply pipe 31 and the water discharge port 38 may be detachably connected via a connector (not shown).
  • the thrust for water supply in the water supply pipe is a capillary phenomenon due to the surface tension of the water. As will be described later, the amount of water flowing by changing the shape, number, etc. of the water supply pipe 31 Can be determined.
  • the discharge inlet 37 communicates with the power sword of the fuel cell main body 2, and takes in water that is discharged from the power sword 5 and water, which is an exhaust. The explanation of the discharge inlet 37 will be described later.
  • an air supply pipe 16 having one end connected to the air supply port 9 of the force sword 5, and an air supply pipe 16 disposed in the middle of the air supply pipe 16,
  • An air feed pump 15 for supplying air into the power sword 5 through 16 is provided.
  • a motor type pump (with check valve, discharge amount: 0 to 2LZ, discharge pressure: 30kPa) is preferably used as this air feed pump 15.
  • supply air for 1LZ When electricity is generated, the air feed pump 15 is driven to supply necessary oxygen into the power sword 5, and when the power generation is stopped, the drive of the air feed pump 15 is stopped.
  • the discharge tank 12 As an auxiliary equipment configuration for collecting the water, the discharge tank 12, the discharge port 10 of the force sword 5 and the discharge tank 12 are connected, and the water and air generated by the force sword 5 are connected.
  • the discharge pipe 11 for supplying waste containing the waste water to the waste tank 12 and the waste intake port 37 of the waste tank 12 and the water tank 30 are connected to water stored in the waste tank 12
  • An exhaust collection pipe 13 for supplying to the tank 30 is provided.
  • the discharge generated by the force sword 5 is conveyed to the discharge tank 12 through the discharge pipe 11 directly connected to the force sword by the air feed pump 15 on the force sword side.
  • the discharge tank 12 In the discharge tank 12, the discharge solidifies and is separated into liquid water and air.
  • the discharge tank 12 is provided with a pressure regulating valve 14, and when the pressure in the discharge tank 12 reaches a certain level, air is discharged to the outside and the pressure is automatically adjusted and reduced.
  • the pressure regulating valve 14 can be made of polyethylene polypropylene and! /, High polymer resin, aluminum and stainless steel! /, And metal.
  • the lower end of the waste tank 12 communicates with the waste collection pipe 13 that communicates with the waste inlet 37, and the water accumulated in the waste tank 12 passes through the waste collection pipe 13. It is sent to the water tank 30 by capillary action.
  • the discharge port 37 of the water tank is provided on the upper surface of the water tank 30 so as not to contact the water 101 accumulated in the water tank. Accordingly, the water that has reached the discharge inlet 37 through the discharge collection pipe 13 drops into the water tank 30.
  • the fuel stock solution in the stock solution tank 20 and the water in the water tank 30 are supplied to the anode by capillary action of the stock solution supply pipe 21 and the water supply pipe 31.
  • the fuel stock solution and water are introduced by the porous body 91 provided in the anode separator 90. Water is absorbed and the fuel stock solution in the stock solution tank 20 and the water in the water tank 30 flow continuously by the capillary action of the stock solution supply pipe 21 and the water supply pipe 31.
  • the fuel stock solution and water absorbed by the porous body 91 are mixed to form a liquid fuel having a lower concentration than the fuel stock solution, and reach the electrolyte membrane 4.
  • the ratio that is, the concentration of the fuel stock solution and the water that reaches the porous body 91 is determined. Is decided uniformly. Further, when the porous body 91 provided in the anode side separator is filled with the fuel, the fuel stock solution and the water are no longer supplied to the anode side.
  • the anode reaction proceeds at the anode 3, and the force sword reaction proceeds at the force sword 5.
  • Carbon dioxide produced as the anode reaction proceeds at the anode 3 is discharged to the outside through the discharge port 8.
  • Hydrogen ion force generated by the anodic reaction Permeates through the S force sword and starts the force sword reaction, so that electric power is generated between the anode 3 and the force sword 5, that is, the power generation circuit.
  • the discharge containing water and air generated by the force sword reaction in the force sword 5 is pressurized by the air feed pump 15 in the force sword 5, and is discharged to the discharge pipe 11 through the discharge port 10. Sent out.
  • the delivered waste is supplied to the waste tank 12.
  • the water vapor in the effluent is condensed and stored as liquid water in the effluent tank.
  • the air in the discharge is discharged to the outside from the pressure regulating valve when the pressure in the discharge tank 12 exceeds a predetermined pressure by the air feed pump.
  • the water accumulated in the discharge tank 12 is conveyed through the discharge collection pipe 13 by capillary action and introduced into the water tank 30. Since the water in the water tank is not in contact with the waste collection pipe 13, the water that is the discharged waste is also dropped into the water tank 30 by the terminal force of the waste collection pipe 13.
  • methanol and water in the anode 3 are consumed by performing the power generation.
  • the fuel stock solution and water absorbed in the porous body 91 are reduced, and the fuel stock solution and water corresponding to the reduced amount of the fuel stock solution and water in the anode 3 are supplied.
  • the flow rates of the stock solution supply pipe 21 and the water supply pipe 31 that are transportable per unit time are determined uniformly, the amounts of methanol and water supplied to the anode 3 are uniformly set.
  • the liquid fuel having a predetermined concentration is supplied.
  • the ratio of the amount of the fuel stock solution 100 flowing in the stock solution supply pipe 21 per unit time to the amount of the water 101 flowing in the water supply pipe 31 per unit time is set to a predetermined value, so that the amount of fuel conveyed to the anode 3 is increased.
  • the methanol concentration can be set to a predetermined concentration.
  • FIG. 3 shows a schematic configuration diagram of a fuel cell system according to the second embodiment of the present invention.
  • the fuel cell system 1a according to the second embodiment will be described mainly with respect to different points in order to make the configuration substantially the same as that of the fuel cell system 1 shown in FIG.
  • the fuel cell main body 2 used in the fuel cell system la according to the second embodiment has almost the same configuration as that of the fuel cell main body 2 of the fuel cell system according to the first embodiment. The difference is that a plurality of fuel supply ports 6 and water supply ports 7 for supplying the fuel stock solution and water are provided.
  • the configuration of the auxiliary machine of the fuel cell system la will be described.
  • the auxiliary system is composed of an auxiliary machine structure for supplying a methanol aqueous solution to the anode 3 of the fuel cell body 2, an auxiliary machine structure for supplying air to the cathode 5, and a force sword 5. And an auxiliary equipment configuration to collect the discharged waste.
  • the auxiliary equipment configuration for supplying the fuel includes a high-concentration methanol aqueous solution that is a fuel stock solution or a stock solution tank 20a containing methanol, a stock solution tank 20a, and an anode 3.
  • a high-concentration methanol aqueous solution that is a fuel stock solution or a stock solution tank 20a containing methanol
  • a stock solution tank 20a containing methanol
  • an anode 3 a high-concentration methanol aqueous solution that is a fuel stock solution or a stock solution tank 20a containing methanol
  • a stock solution tank 20a containing methanol
  • the stock solution tank 20a has substantially the same configuration as that shown in FIG. Excretion The difference is that four stock solution introduction pipes 24 leading to the outlet 27 are provided.
  • the stock solution supply pipe 21 is connected to a stock solution outlet 27 of the stock solution tank 20, respectively.
  • the undiluted solution supply pipe 21 and the undiluted solution outlet 27 may be connected to each other via a connector (not shown) so as to be detachable.
  • Each stock solution supply pipe is provided with a stock solution valve 22 composed of an electromagnetic valve that can be opened and closed independently by a control signal from the control unit 50.
  • the thrust for feeding the fuel stock solution is a capillary phenomenon due to the surface tension of the fuel stock solution, and as will be described later, the amount of the fuel stock solution flowing is determined by changing the shape, number, etc. of the stock solution supply pipe 21 be able to.
  • the stock solution supply pipe 21, the stock solution introduction pipe 24, and the stock solution discharge port 27 are provided as one set, and a total of four sets are provided.
  • the water tank 30a has substantially the same configuration as that shown in FIG. 3, and the water discharge port 38 for discharging the water 101 in the water container body 33 and the water 101 in the water container body 33 are watered. There are three water introduction pipes 34 each leading to the discharge port 38, and this is different.
  • Each water supply pipe is provided with a water valve 32 constituted by an electromagnetic valve that can be opened and closed by a control signal from the control unit 50.
  • the thrust for water supply is a capillary phenomenon due to the surface tension of water, and as will be described later, the amount of flowing water is determined by changing the shape and number of water supply pipes 31. Can do.
  • the water supply pipe 31, the water introduction pipe 34, and the water discharge port 38 are provided as one set, and a total of three sets are provided.
  • the air feed pump 7 is driven in response to a signal from the control unit 50, and air, that is, oxygen is supplied to the force sword 5 through the air supply pipe 16. Is done.
  • the control unit 50 opens all the stock solution valves 22 and the water valves 32 to supply the fuel stock solution in the stock solution tank 20a and the water in the water tank 30a to the stock solution supply pipe 21 and the water supply pipe 3 Supply to the anode by capillary action of 1.
  • the fuel stock solution and water reach the anode 3
  • the fuel stock solution and water are absorbed by the porous body 91 provided in the anode-side separator 90, and are continuously produced by the capillary phenomenon of the stock solution supply pipe 21 and the water supply pipe 31.
  • the fuel stock solution in the stock solution tank 20a and the water in the water tank 30a flow.
  • the fuel stock solution and water absorbed by the porous body 91 are mixed to become a liquid fuel having a lower concentration than the fuel stock solution, and reach the electrolyte membrane 4.
  • the flow rate that can be conveyed per unit time is determined uniformly, and therefore, the ratio of the fuel stock solution and water that reaches the porous body 91, that is, The concentration is determined uniformly.
  • the discharge containing water and air generated by the force sword reaction in the force sword 5 is pressurized by the air feed pump 15 in the force sword 5 and is discharged to the discharge pipe 11 through the discharge port 10. Sent out.
  • the delivered waste is supplied to the waste tank 12.
  • the water vapor in the effluent is condensed and stored as liquid water in the effluent tank.
  • the air in the discharge is discharged to the outside from the pressure regulating valve when the pressure in the discharge tank 12 exceeds a predetermined pressure by the air feed pump.
  • the water accumulated in the discharge tank 12 is conveyed through the discharge collection pipe 13 by capillary action and introduced into the water tank 30a. Since the water in the water tank and the waste collection pipe 13 are not in contact with each other, the water that is the discharged waste is also dropped into the water tank 30a by the terminal force of the waste collection pipe 13.
  • methanol and water in the anode 3 are consumed by performing the power generation.
  • the fuel stock solution and water absorbed in the porous body 91 are reduced, and the fuel stock solution and water corresponding to the reduced amount of the fuel stock solution and water in the anode 3 are supplied.
  • the stock solution supply pipe 21 and the water supply pipe 31 each have a flow rate that can be transferred per unit time. Therefore, the amount of methanol and water supplied to the anode 3 is uniformly determined, and liquid fuel with a predetermined concentration is supplied.
  • the valve is opened by setting the ratio of the amount of the fuel stock solution 100 flowing through all the stock solution supply pipes 21 per unit time to the amount of the water 101 flowing through all the water supply pipes 31 per unit time to a predetermined value.
  • the methanol concentration of the fuel conveyed to the anode 3 can be set to a predetermined concentration by the number of the above.
  • the stock solution supply pipe 21 and the water supply pipe 31 may be rubbed so as to vary the amount of liquid flowing per unit time. In this case, by controlling which stock solution supply pipe 21 and water supply pipe 31 are opened, the methanol concentration of the fuel conveyed to the anode can be adjusted in multiple stages.
  • the fuel cell main body 2 continuously generates a necessary amount of power (predetermined amount of power).
  • the air feed pump 15 is stopped and all of the stock solution valve 22 and the water valve 32 are closed to stop the supply of liquid fuel to the anode.
  • the concentration of the liquid fuel obtained by mixing them can always be kept constant.
  • FIG. 5 is a schematic configuration diagram of a fuel cell system according to a third embodiment of the present invention.
  • the fuel cell system lb consists of a fuel cell body 2 that is a power generation unit that generates electricity by electrochemically converting the chemical energy of the fuel into electrical energy, and the fuel required for this power generation.
  • an auxiliary system such as a fuel supply mechanism for supplying the fuel cell body 2 to the fuel cell body 2.
  • This fuel cell main body 2 is a fuel cell using a direct methanol fuel cell (DMFC) that uses a methanol aqueous solution, which is an example of an organic liquid fuel, as a fuel to generate electricity by directly extracting protons from the methanol.
  • DMFC direct methanol fuel cell
  • the fuel cell system la is a fuel cell system using a direct methanol fuel cell (DMFC) that generates electric power by directly extracting protons from methanol.
  • the fuel cell system lb according to the present embodiment has the same configuration in part as the fuel cell system 1 according to the first embodiment. Both differ mainly in the configuration of the auxiliary equipment.
  • the auxiliary equipment for supplying the fuel includes a stock solution tank 20b that contains a methanol aqueous solution or methanol as a fuel stock solution, and two fuel stock solutions that are stored in the stock solution tank 20b and that supply the fuel stock solution to the anode 3 side.
  • Fuel stock supply pipe 21b, water tank 30b containing water, stock solution valve 22b provided in the middle of fuel stock supply pipe 21b, and water stored in water tank 30b are supplied to anode 3 side 8
  • a water supply pipe 31b, a water valve 32b provided in the middle of the water supply pipe, and a fuel mixing pipe 17 are provided.
  • the stock solution tank 20b has substantially the same configuration as the stock solution tank 20 used in the fuel cell system 1 of the first embodiment, and the container body 23 in which the fuel stock solution 100 is stored, and the container body 23 And a stock solution introduction pipe for guiding the fuel stock solution to the fuel stock solution supply pipe 21a.
  • a stock solution introduction pipe for guiding the fuel stock solution to the fuel stock solution supply pipe 21a.
  • the fuel stock solution 100 methanol, ethanol, dimethyl ether, or an aqueous solution thereof can be used. In this embodiment, 100% methanol is used.
  • the fuel stock solution supply pipe 21b is connected to the vicinity of the bottom of the stock solution tank 20b, extends in the horizontal direction, and communicates with the fuel mixing pipe 17.
  • the connection between the fuel stock solution supply pipe 21a and the stock solution tank 20b may be detachably connected via a connector (not shown).
  • Each fuel stock solution supply pipe is provided with a stock solution valve 22b configured by an electromagnetic valve that can be opened and closed by a control signal from the control unit 50b.
  • the thrust for feeding the fuel stock solution is a capillary phenomenon due to the surface tension of the fuel stock solution. As will be described later, the amount of the fuel stock solution flowing depends on the shape and number of the fuel stock solution supply pipe 21b.
  • the two fuel stock solution supply pipes 21b are configured such that the flow rates per unit time are all the same.
  • the water tank 30b has substantially the same configuration as the water tank 30 used in the fuel cell system 1 of the first embodiment, and supplies water to the container main body in which water is stored and the water in the container main body. And a water introduction pipe leading to the pipe 31 b.
  • the water supply pipe 31b is connected to the vicinity of the bottom of the water tank 30b, extends in the horizontal direction, and communicates with the fuel mixing pipe 17.
  • the water supply pipe 31b and the water tank 30b may be detachably connected via a connector (not shown).
  • Each water supply pipe is provided with a water valve 22b composed of an electromagnetic valve that can be opened and closed by a control signal from the control unit 50b.
  • the thrust for water supply is a capillary phenomenon due to the surface tension of water. As will be described later, the amount of flowing water is determined by the shape and number of 3 lb water supply tubes.
  • the eight water supply pipes 31b are configured such that the flow rates per unit time are all the same.
  • the discharge inlet 37 communicates with the power sword of the fuel cell main body 2, and takes in water that is discharged from the power sword 5 and that includes air.
  • the air feed pump 7 is driven by an instruction from the control unit 50b, and air, that is, oxygen is supplied to the force sword 5 through the air supply pipe 16. Further, the control unit 50b opens all of the stock solution valve 22b and the water valve 32b so that the fuel stock solution in the stock solution tank 20b and the water in the water tank 30b are converted into capillarity of the stock solution supply pipe 21b and the water supply pipe 31b. To supply to the fuel mixing pipe 17. As described above, each of the supply pipe 21b and the water supply pipe 31b is configured to have a constant flow rate per unit time, and thus the supply pipe 21b and the water valve 32b opened by the stock solution valve 22b and the water valve 32b are provided. Depending on the number of water supply pipes 31b, the ratio of the fuel stock solution and water reaching the fuel mixing pipe 17, that is, the concentration of fuel is determined.
  • the fuel stock solution and water that have reached the fuel mixing pipe 17 are mixed and diluted, and proceed to the anode 3 side by capillarity of the fuel mixing pipe 17.
  • the fuel stock solution and water are absorbed by the porous body 91 provided in the anode side separator 90, and the stock solution is continuously produced by the capillary action of the fuel stock solution supply pipe 21b and the water supply pipe 31b.
  • the fuel stock solution in the tank 20b and the water in the water tank 30 flow.
  • the supply of fuel and water is also stopped by closing all the stock solution valves 22 and the water valves 32.
  • the stock solution supply pipe 21b and the water supply pipe 31b may have different amounts of liquid flowing per unit time.
  • the methanol concentration of the fuel conveyed to the anode can be adjusted in multiple stages by controlling which stock solution supply pipe 21b and water supply pipe 31b are opened.
  • the amount of the fuel stock solution flowing through the stock solution supply pipe per unit time and the amount of water flowing through the water supply pipe per unit time are always maintained. It can be obtained stably. Therefore, the concentration of the liquid fuel obtained by mixing them can always be kept constant.
  • the fuel stock solution and water can be mixed in the fuel mixing tube.
  • FIG. 6 is a schematic configuration diagram of a fuel cell system according to the fourth embodiment of the present invention.
  • the fuel cell system lc consists of a fuel cell body 2 which is a power generation unit that generates electricity by electrochemically converting the chemical energy of the fuel into electrical energy, and the fuel required for this power generation.
  • an auxiliary system such as a fuel supply mechanism for supplying the fuel cell body 2 to the fuel cell body 2.
  • This fuel cell main body 2 is a fuel cell using a direct methanol fuel cell (DMFC) that uses a methanol aqueous solution, which is an example of an organic liquid fuel, as a fuel to generate electricity by directly extracting protons from the methanol. System.
  • DMFC direct methanol fuel cell
  • the fuel cell system lc according to the present embodiment has the same configuration in part as the fuel cell system 1 according to the first embodiment. Different.
  • methanol aqueous solution or methanol which is a fuel stock solution is accommodated, and water supplied by a water tank described later and fuel stock solution are mixed.
  • a raw liquid tank 20c having a predetermined concentration of liquid fuel six fuel supply pipes 41c for supplying liquid fuel stored in the raw liquid tank 20c to the anode 3 side, and a water tank 30c for containing water
  • the water tank 30c includes a container body 33c in which water 101 is stored, and a water introduction pipe 34 that guides the water 101 in the container body 33c to a water discharge port. It is provided with an exhaust intake port 37 that takes in the exhaust generated by the force sword and is connected to the exhaust recovery pipe 13 and a pressure regulating valve 14c that releases the air contained in the exhaust to the outside.
  • the pressure adjustment valve 14c discharges air to the outside and automatically adjusts and depressurizes the pressure.
  • the pressure regulating valve 14c can be made of a high molecular weight resin such as polyethylene or polypropylene, or a metal such as aluminum or stainless steel.
  • the water supply pipe 31c is connected in the vicinity of the bottom of the water tank 30c, extends in the horizontal direction, and communicates with the stock solution tank 20c.
  • the water supply pipe 31c and the water tank 30c may be detachably connected via a connector (not shown).
  • each water supply pipe is provided with a water valve 32c constituted by an electromagnetic valve that can be opened and closed independently by a control signal from the control unit 50b.
  • the thrust for water supply is a capillary phenomenon due to the surface tension of water, and as will be described later, the amount of fuel stock solution that flows depends on the shape and number of water supply pipes 31b.
  • the six water supply pipes 31c are configured such that each has the same flow rate per unit time. Since the water supply pipe 31c can be opened and closed by switching the opening and closing of the water valve 32c, the flow rate of water supplied to the stock solution tank 20c can be adjusted.
  • the stock solution tank 20c contains the fuel stock solution 100 in the initial state, and is supplied with water from a water tank and mixed with the diluted liquid fuel. As housed.
  • the stock solution tank 20c includes a container main body 23c that stores liquid fuel, and a fuel introduction pipe 44c that guides the liquid fuel in the container main body 23c to the fuel discharge port 38.
  • the fuel supply pipe 41c is connected to the fuel discharge port 38 provided in the vicinity of the bottom of the stock solution tank 20c and communicates with the anode 3.
  • the connection between the stock solution tank 20c and the fuel supply pipe 41c and the water supply pipe 31b can be detachably connected via a connector (not shown) so that only the stock solution tank 20c can be removed.
  • Each fuel supply pipe 41c is independently controlled by a control signal from the control unit 50c.
  • a fuel valve 42c composed of a solenoid valve that can be freely opened and closed is provided.
  • the thrust for feeding the liquid fuel is a capillary phenomenon due to the surface tension of the liquid fuel. As will be described later, the amount of the liquid fuel flowing depends on the shape and number of the fuel supply pipes 41c.
  • the six fuel supply pipes 41c are configured so that each has the same flow rate per unit time. By switching the opening and closing of the fuel valve 42c, the fuel supply pipe 41c can be opened and closed, so that the flow rate of the liquid fuel supplied to the anode of the fuel cell body 2 can be adjusted.
  • the water valve 32c is opened and water in the water tank 30c is supplied to the stock solution tank 20c according to an instruction from the control unit 50c.
  • FIG. 8A is a diagram showing the stock solution tank 20c in an initial state before the water 101 is poured.
  • FIG. 8B is a diagram showing a state when water 101 is injected into the stock solution tank 20c by surface tension, and the concentration of aqueous methanol solution in the stock solution tank 20c enables the fuel cell to operate stably.
  • the fuel stock solution is diluted with water supplied from the water tank 30c, and a fuel stock solution 102 is generated.
  • equation (2) if the surface tension S and density P of liquid fuel and water, and the suction height H due to surface tension are the left side and the right side are constants, the following equation holds for liquid fuel and water.
  • the subscript m represents methanol, which is a liquid fuel
  • w represents water.
  • the stock solution introduction pipe 34 in the stock solution tank 20c does not carry the fuel stock solution (100% methanol)! Therefore, in the initial state, the stock solution introduction pipe 34 in FIG. Ha needs to satisfy Hm and Ha. Here, the water pressure from the fuel stock solution is negligible.
  • FIG. 9 shows the relationship between the total amount of water injected into the stock solution tank and the height that the surface tension of the liquid fuel sucks up, and the total amount of water injected into the methanol tank and the methanol aqueous solution 4 from the liquid level.
  • the relationship of the distance H to the height is shown.
  • the stock solution tank 20c in the present embodiment is a rectangular parallelepiped.
  • the cross-sectional area perpendicular to the gravity direction is A and the amount of water supplied to the stock solution tank 20c is Q
  • the liquid surface force of the liquid fuel (methanol aqueous solution) is also the stock solution introduction pipe 34
  • the height at which the liquid fuel (methanol aqueous solution) of an arbitrary concentration is sucked and raised in the stock solution introduction pipe 34 is defined as H.
  • the suction height H matches the suction height of the fuel stock solution before water is supplied to the stock solution tank, and the surface tension of the liquid fuel increases as the amount of water supplied increases. Since Hm and Hw as shown in Equation (3), H increases as water is supplied into the stock solution tank 2 Oc.
  • Fig. 9 assumes that the suction height H increases in proportion to the amount of water supply.
  • the relationship between the suction height H and the amount of water supply can be derived from experiments and is not necessarily proportional.
  • the stock solution tank in the present embodiment is designed so that the suction height Hb when the liquid fuel in the stock solution tank 20c reaches a predetermined concentration D is the liquid level height Lb ( (Fig. 8B)
  • the aqueous methanol solution reaches the upper end of the stock solution introduction pipe 34, and then liquid fuel advances to the fuel supply pipe 21c by capillary force and gravity to supply the aqueous methanol solution to the anode. Is started.
  • a voltage sensor (not shown) is provided on the electrode, and at the same time as sensing that a predetermined voltage is stably supplied, at the same time, a water bar provided in the water supply pipe 31c by the controller 50c. Lub 32c is closed. As a result, the supply of water to the stock solution tank 20c is stopped, and the concentration of the liquid fuel in the stock solution tank 20c is kept constant.
  • the supply of the liquid fuel is started, the supply is thereafter performed with a water pressure difference due to the difference between the height of the liquid fuel 102 in the stock solution tank 20c and the height of the anode. Therefore, in the present embodiment, the concentration of the liquid fuel is established by installing the stock solution tank 20c and the fuel cell body 2 so that the height of the anode is always lower than the level of the aqueous methanol solution 4 in the stock solution tank 20c. Supply while maintaining
  • the valve 32c when a predetermined voltage is stably supplied, at the same time as the valve 32c provided in the water micropipe 8 is closed, the predetermined water injection is performed.
  • the valve 32c may be closed by a sensor that senses the amount of water in the hourly stock tank 20b.
  • the force that makes the methanol tank a rectangular parallelepiped is not limited to this, and any shape is acceptable as long as the relationship between the water supply amount Q and the height H can be defined.
  • the fuel cell system using the fuel supply mechanism for a fuel cell of the present invention it is uniformly determined by the shape and number of capillaries without using a special auxiliary machine such as a concentration sensor.
  • the ratio of the amount of the fuel stock solution and water transported by capillary action can be adjusted by switching the valve, and the concentration of the liquid fuel supplied to the fuel cell body can be adjusted.

Abstract

Mécanisme d’alimentation en combustible pour un réservoir à combustible qui dispose d’une cuve à liquide brut (20a) pour recevoir un liquide combustible brut disposant d’une haute concentration en combustible; des tubes d’alimentation en liquide brut (21a), un bout de chaque tube (21a) est relié à la cuve à liquide brut pour envoyer le liquide combustible brut du côté à l’autre bout par phénomène capillaire et chaque tube (21a) peut être indépendamment ouvert ou fermé par une valve à liquide brut (22a); une citerne d’eau (30a) pour recevoir de l’eau pour la dilution du liquide combustible brut; et des tubes d’alimentation en eau (31a), le bout de chaque tube (31a) est relié à la citerne d’eau pour envoyer l’eau vers le côté à l’autre bout par phénomène capillaire et chaque tube (21a) peut être indépendamment ouvert ou fermé par une valve à liquide brut (22a). La valve de liquide brut (22a) et la valve d’eau (32a) sont ouvertes et fermées individuellement pour déterminer le ratio entre le liquide combustible brut et l’eau à envoyer.
PCT/JP2005/013657 2004-08-02 2005-07-26 Mécanisme d’alimentation en combustible pour réservoir à combustible WO2006013752A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008034114A (ja) * 2006-07-26 2008-02-14 Nec Corp 液体供給容器及びこれを備えた燃料電池システム

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JPS59132169U (ja) * 1983-02-25 1984-09-04 日産自動車株式会社 分割型空気極液室を備えた燃料電池
JPS6062064A (ja) * 1983-09-14 1985-04-10 Hitachi Ltd 液体燃料電池
JPH02168564A (ja) * 1988-12-21 1990-06-28 Nippon Soken Inc 燃料電池
JPH06188008A (ja) * 1992-04-01 1994-07-08 Toshiba Corp 燃料電池
JP2000268836A (ja) * 1999-03-15 2000-09-29 Sony Corp 発電デバイス
JP2001093551A (ja) * 1999-09-21 2001-04-06 Toshiba Corp 燃料電池用液体燃料収容容器および燃料電池
JP2002066263A (ja) * 2000-08-29 2002-03-05 Honda Motor Co Ltd 中空糸膜モジュールおよび中空糸膜モジュールの製造方法
JP2002110199A (ja) * 1995-12-08 2002-04-12 California Inst Of Technol 直接供給式メタノール燃料電池
WO2002093675A2 (fr) * 2001-05-15 2002-11-21 Mti Microfuel Cells, Inc. Procedes et appareils destines a un systeme de pile a combustible commande par pression
WO2002097911A2 (fr) * 2001-05-30 2002-12-05 Hewlett-Packard Company Pile a combustible a substrat souple
JP2003317755A (ja) * 2002-04-23 2003-11-07 Hideji Tanaka 燃料供給装置およびそれを用いた燃料電池システム
JP2003331899A (ja) * 2002-05-08 2003-11-21 Hitachi Maxell Ltd 液体燃料電池
JP2004063200A (ja) * 2002-07-26 2004-02-26 Mitsubishi Pencil Co Ltd 直接メタノール型燃料電池

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Publication number Priority date Publication date Assignee Title
JPS5966066A (ja) * 1982-10-06 1984-04-14 Hitachi Ltd 液体燃料電池
JPS59132169U (ja) * 1983-02-25 1984-09-04 日産自動車株式会社 分割型空気極液室を備えた燃料電池
JPS6062064A (ja) * 1983-09-14 1985-04-10 Hitachi Ltd 液体燃料電池
JPH02168564A (ja) * 1988-12-21 1990-06-28 Nippon Soken Inc 燃料電池
JPH06188008A (ja) * 1992-04-01 1994-07-08 Toshiba Corp 燃料電池
JP2002110199A (ja) * 1995-12-08 2002-04-12 California Inst Of Technol 直接供給式メタノール燃料電池
JP2000268836A (ja) * 1999-03-15 2000-09-29 Sony Corp 発電デバイス
JP2001093551A (ja) * 1999-09-21 2001-04-06 Toshiba Corp 燃料電池用液体燃料収容容器および燃料電池
JP2002066263A (ja) * 2000-08-29 2002-03-05 Honda Motor Co Ltd 中空糸膜モジュールおよび中空糸膜モジュールの製造方法
WO2002093675A2 (fr) * 2001-05-15 2002-11-21 Mti Microfuel Cells, Inc. Procedes et appareils destines a un systeme de pile a combustible commande par pression
WO2002097911A2 (fr) * 2001-05-30 2002-12-05 Hewlett-Packard Company Pile a combustible a substrat souple
JP2003317755A (ja) * 2002-04-23 2003-11-07 Hideji Tanaka 燃料供給装置およびそれを用いた燃料電池システム
JP2003331899A (ja) * 2002-05-08 2003-11-21 Hitachi Maxell Ltd 液体燃料電池
JP2004063200A (ja) * 2002-07-26 2004-02-26 Mitsubishi Pencil Co Ltd 直接メタノール型燃料電池

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008034114A (ja) * 2006-07-26 2008-02-14 Nec Corp 液体供給容器及びこれを備えた燃料電池システム

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