JPH08222253A - Fuel cell system - Google Patents
Fuel cell systemInfo
- Publication number
- JPH08222253A JPH08222253A JP7027937A JP2793795A JPH08222253A JP H08222253 A JPH08222253 A JP H08222253A JP 7027937 A JP7027937 A JP 7027937A JP 2793795 A JP2793795 A JP 2793795A JP H08222253 A JPH08222253 A JP H08222253A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- fuel cell
- reformer
- reformed
- pressure
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
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
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液体燃料を燃料電池に
使用する水素リッチの改質ガスに改質するため、貯蔵容
器中の液体燃料の改質器への移送、および改質器で改質
した改質ガスの燃料電池への供給をガス圧、およびガス
圧の制御で行うようにした燃料電池システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the transfer of liquid fuel in a storage container to a reformer and to the reformer for reforming liquid fuel into hydrogen-rich reformed gas used in a fuel cell. The present invention relates to a fuel cell system in which reformed reformed gas is supplied to a fuel cell by controlling gas pressure and gas pressure.
【０００２】[0002]
【従来の技術】供給された燃料中の水素と、酸化剤中の
酸素の電池反応により、発電を行うようにした燃料電池
システムにおいては、メタノール、ナフサ、灯油等の液
体燃料を、水蒸気改質法等によって燃料改質を行い、水
素ガスリッチの改質ガスにして、この改質ガスを燃料と
して燃料電池に供給する一方、酸化剤としての空気をタ
ーボ機械等によって燃料電池に供給するようにしてい
る。2. Description of the Related Art In a fuel cell system in which hydrogen is supplied from a supplied fuel and oxygen in an oxidizer is used to generate electricity, a liquid fuel such as methanol, naphtha and kerosene is steam reformed. Method, etc. to reform the fuel into hydrogen gas-rich reformed gas, and supply this reformed gas as fuel to the fuel cell, while supplying air as an oxidant to the fuel cell by a turbomachine or the like. There is.
【０００３】このような燃料電池システムにおいて、例
えば、メタノールを液体燃料として使用する燃料電池シ
ステムの一例を、図１に示すブロック図により説明す
る。触媒作用下で水蒸気と反応させて、水素ガスリッチ
の改質ガスに改質する液体燃料としてのメタノール１０
は、貯蔵容器としての改質燃料タンク０１に貯蔵されて
いる。このメタノール１０の改質燃料タンク０１から、
メタノール１０を改質ガスに改質する改質器０３への供
給は、通常改質燃料タンク０１と、改質器０３を連結す
る配管に介装した燃料供給ポンプ０２によって行われ
る。In such a fuel cell system, for example, an example of a fuel cell system using methanol as a liquid fuel will be described with reference to a block diagram shown in FIG. Methanol as a liquid fuel for reacting with steam under a catalytic action to reform into a reformed gas rich in hydrogen gas 10
Are stored in the reformed fuel tank 01 as a storage container. From this reformed fuel tank 01 of methanol 10,
The reformer 03 for reforming the methanol 10 into reformed gas is usually supplied by a reformed fuel tank 01 and a fuel supply pump 02 installed in a pipe connecting the reformer 03.
【０００４】このようにして、改質器０３に供給された
メタノール１０は、高温にされた改質器０３の温度条件
下で、触媒作用のもとで水蒸気と反応させることによ
り、改質され、燃料電池本体０４における発電に使用で
きる水素リッチの改質ガスとなり、改質器０３から燃料
電池本体０４へ燃料ガスとして供給される。一方、燃料
電池本体０４へ供給された改質ガス中の水素と電池反応
する酸素を含む酸化剤、例えば空気は、ターボ機械等で
構成された酸化剤供給装置０５により、大気中から燃料
電池本体０４に供給される。In this way, the methanol 10 supplied to the reformer 03 is reformed by reacting with steam under a catalytic action under the temperature condition of the reformer 03 which has been heated to a high temperature. The hydrogen-rich reformed gas that can be used for power generation in the fuel cell main body 04 is supplied from the reformer 03 to the fuel cell main body 04 as fuel gas. On the other hand, an oxidant containing oxygen that reacts with hydrogen in the reformed gas supplied to the fuel cell main body 04, such as air, is supplied from the atmosphere to the fuel cell main body by an oxidant supply device 05 configured by a turbo machine or the like. 04.
【０００５】燃料電池本体０４では、これら供給された
改質ガス中の水素と、酸化剤中の酸素との電池反応が触
媒電極上で起こり、発電が行われ、直流の電力が得られ
る。また、燃料電池本体０４から得られた直流電力は、
インバータ制御器０６で、所定の周波数の交流出力に変
換されて、燃料電池システムから出力され、種々の用途
に供される。In the fuel cell main body 04, a cell reaction between hydrogen in the supplied reformed gas and oxygen in the oxidant occurs on the catalyst electrode to generate electric power and obtain direct current power. Further, the DC power obtained from the fuel cell main body 04 is
The inverter controller 06 converts the AC output into a predetermined frequency and outputs the AC output from the fuel cell system for various uses.
【０００６】しかしながら、上述した従来の燃料電池シ
ステムの場合、次のような欠点があった。However, the above-mentioned conventional fuel cell system has the following drawbacks.
【０００７】（１）すなわち、メタノール１０の改質燃
料タンク０１から改質器０３への供給が、燃料供給ポン
プ０２を使用する、いわゆる機械的装置を用いた燃料供
給システムとなっているため、故障等が起こりやすく、
燃料電池システム全体の信頼性が低いものになるほか、
燃料供給ポンプ０２の駆動装置、およびその駆動源を必
要とする。(1) That is, since the supply of methanol 10 from the reformed fuel tank 01 to the reformer 03 is a fuel supply system using a so-called mechanical device that uses the fuel supply pump 02, Failures are likely to occur,
The reliability of the entire fuel cell system will be low,
A drive device for the fuel supply pump 02 and its drive source are required.
【０００８】この駆動源は、燃料電池システムの電気出
力を利用できる定格運転時には、その欠点が若干解消さ
れるものの、起動時等、燃料電池システムの電気出力を
利用できない場合があり、これを考慮した他の駆動源の
設置が必要となる。さらに、燃料供給ポンプ０２のよう
に、作動する機器を使用する場合、回転部、軸部等の作
動部に異常が生じやすく、点検を常に要する等、メンテ
ナンスの面の不具合がある。[0008] This drive source has some drawbacks solved during rated operation in which the electric output of the fuel cell system can be used, but the electric output of the fuel cell system may not be used at the time of start-up. It is necessary to install another drive source. Further, when a device that operates such as the fuel supply pump 02 is used, an abnormality is likely to occur in the operating part such as the rotating part and the shaft part, and inspection is always required.
【０００９】（２）また、燃料供給ポンプ０２による移
送では、メタノール１０の流れに規則的な圧力変動が発
生するため、これに伴い、改質器０３で改質され、改質
器０３から燃料電池本体０４に供給される改質ガスにも
脈流が発生し、その脈流を止めるための装置を設ける必
要がある等、燃料電池システムが複雑化する。(2) Further, in the transfer by the fuel supply pump 02, a regular pressure fluctuation occurs in the flow of the methanol 10, and accordingly, the reformer 03 reforms the fuel and the fuel is discharged from the reformer 03. A pulsating flow is also generated in the reformed gas supplied to the cell body 04, and a device for stopping the pulsating flow needs to be provided, which complicates the fuel cell system.
【００１０】[0010]
【発明が解決しようとする課題】本発明は、上述した従
来の燃料電池システムの欠点を解消するため、液体燃料
を貯蔵する貯蔵容器から、液体燃料の改質を行う改質器
への液体燃料の供給を、貯蔵容器の内部をガス圧で加圧
することによって行い、故障等が少なく、燃料電池シス
テム全体の信頼性を向上でき、メンテナンスの繁雑さか
ら解放され、特に、起動時を考慮した駆動源の設置が不
要になるとともに、燃料電池本体に、脈動のない安定し
た流れの改質ガスが供給できる、燃料電池システムを提
供することを課題とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned drawbacks of the conventional fuel cell system, the present invention provides a liquid fuel from a storage container for storing the liquid fuel to a reformer for reforming the liquid fuel. Is supplied by pressurizing the inside of the storage container with gas pressure, there are few malfunctions, the reliability of the fuel cell system as a whole can be improved, and maintenance is freed. It is an object of the present invention to provide a fuel cell system that does not require installation of a source and can supply a stable flow of reformed gas without pulsation to the fuel cell body.
【００１１】[0011]
【課題を解決するための手段】このため、本発明の燃料
電池システムにおいては、次の手段とした。Therefore, in the fuel cell system of the present invention, the following means are adopted.
【００１２】（１）液体燃料を貯蔵する貯蔵容器の内部
に、高圧気体を注入することにより、加圧し、その加圧
力によって、貯蔵容器中の液体燃料を、液体燃料の改質
を行う改質器へ供給できる加圧手段を設けた。(1) A high-pressure gas is injected into a storage container for storing the liquid fuel to pressurize the liquid fuel, and the applied pressure causes the liquid fuel in the storage container to be reformed. The pressurizing means which can supply to the container was provided.
【００１３】なお、加圧手段は、高圧気体を充填したガ
スボンベでも良く、圧力タンクに貯気された高圧気体を
貯蔵容器に導くようにしたものでも、さらには、容器中
の高圧の液体を減圧することによって、高圧のガス体に
して、貯蔵容器に導くようにしたものでも良い。The pressurizing means may be a gas cylinder filled with a high-pressure gas, a high-pressure gas stored in a pressure tank may be introduced into a storage container, or a high-pressure liquid in the container may be depressurized. By doing so, a high-pressure gas body may be introduced into the storage container.
【００１４】また、他の本発明の燃料電池システムは、
上記（１）に加え、次の手段とした。Another fuel cell system of the present invention is
In addition to the above (1), the following means were adopted.
【００１５】（２）加圧手段によって加圧された液体燃
料の圧力を制御することによって、改質器で改質された
改質ガスを燃料電池に供給できるようにした燃料供給手
段を設けた。(2) The fuel supply means is provided so that the reformed gas reformed by the reformer can be supplied to the fuel cell by controlling the pressure of the liquid fuel pressurized by the pressurizing means. .
【００１６】なお、燃料供給手段は、貯蔵容器から改質
器に供給される液体燃料の圧力を、改質器における液体
燃料の改質に必要な圧力に、同時に制御するようにして
も良い。また、燃料供給手段は、貯蔵容器内の液体燃料
の圧力を制御することによって、又は貯蔵容器から改質
器へ供給される液体燃料の圧力を制御することによって
行うこともできる。The fuel supply means may simultaneously control the pressure of the liquid fuel supplied from the storage container to the reformer to the pressure required for reforming the liquid fuel in the reformer. Further, the fuel supply means may be performed by controlling the pressure of the liquid fuel in the storage container or by controlling the pressure of the liquid fuel supplied from the storage container to the reformer.
【００１７】[0017]
【作用】本発明の燃料電池システムは、上述（１）の手
段により、 （１）貯蔵容器の内部に貯蔵された液体燃料は、加圧手
段による貯蔵容器内のガス圧の上昇により、昇圧して貯
蔵容器から改質器へ供給される。この移送は、燃料供給
ポンプの如く、機械的装置によらないため、故障が起こ
りにくく、燃料電池システムの信頼性が向上するととも
に、点検を要する作動部がなく、メンテナンスフリーの
利点が得られる。さらに、機械的装置を駆動させる電
源、油圧源等の駆動源なしで燃料電池システムの起動が
できる。また、改質器に供給される流体燃料の流れが脈
動のない、定流量のものになるので、改質器の作動を安
定したものにできるとともに、燃料電池に供給するのに
必要な圧力の改質ガスを定常的に生成できる。In the fuel cell system of the present invention, by the means (1) described above, (1) the liquid fuel stored in the storage container is boosted by the increase in the gas pressure in the storage container by the pressurizing means. Is supplied from the storage container to the reformer. Since this transfer does not rely on a mechanical device like a fuel supply pump, failure is unlikely to occur, the reliability of the fuel cell system is improved, and there are no operating parts to be inspected, which is a maintenance-free advantage. Furthermore, the fuel cell system can be started without a power source for driving the mechanical device, a drive source such as a hydraulic pressure source, or the like. Further, since the flow of the fluid fuel supplied to the reformer is a constant flow rate with no pulsation, the operation of the reformer can be made stable and the pressure necessary for supplying to the fuel cell can be reduced. The reformed gas can be constantly generated.
【００１８】また、他の本発明の燃料電池システムは、
上述（１）の手段に加え、（２）の手段により、上述
（１）に加えて、 （２）貯蔵容器内の液体燃料は、燃料供給手段により、
圧力が制御されて、改質器から供給される改質ガスを、
燃料電池に必要とされる圧力にして、燃料電池に供給で
きる。これにより、改質ガスを燃料電池に供給するため
の特別の装置を設定する必要がなくなるとともに、改質
器で改質され、供給される改質ガスに脈動が発生するこ
となく、安定した燃料電池の電池反応を行わせることが
できる。また、燃料供給手段は、改質器における液体燃
料の改質に適切な量の液体燃料を改質器に供給すること
ともなり、改質器の安定した作動にも寄与する。Further, another fuel cell system of the present invention is
In addition to the above-mentioned means (1), by means (2), in addition to the above-mentioned (1), (2) the liquid fuel in the storage container is supplied by the fuel supply means.
The pressure of the reformed gas supplied from the reformer is controlled,
The pressure required for the fuel cell can be supplied to the fuel cell. This eliminates the need to set up a special device for supplying the reformed gas to the fuel cell, and the stable reformed fuel is reformed in the reformer and the supplied reformed gas does not pulsate. The battery reaction of the battery can be performed. Further, the fuel supply means also supplies the reformer with an amount of liquid fuel suitable for reforming the liquid fuel in the reformer, and contributes to stable operation of the reformer.
【００１９】[0019]
【実施例】以下、本発明の燃料電池システムの実施例を
図面にもとづき説明する。図２は、本発明の燃料電池シ
ステムの一実施例を示すブロック図である。なお、図１
に示したものと同一符番のものは、図１において説明し
たものと同一のものであり、詳細説明は省略する。Embodiments of the fuel cell system of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram showing an embodiment of the fuel cell system of the present invention. FIG.
The same reference numerals as those shown in FIG. 2 are the same as those described in FIG. 1, and detailed description thereof will be omitted.
【００２０】図に示すように、メタノールを液体燃料と
して使用する、本実施例の燃料電池システムでは、液体
燃料としてのメタノール１０は、貯蔵容器として改質燃
料タンク０１に貯蔵されている。この改質燃料タンク０
１には、不活性ガス等の高圧気体を充填した小型の圧力
ボンベ０７からなる加圧手段が設けられている。また、
圧力ボンベ０７から改質燃料タンク０１に充填する不活
性ガスの供給ラインの途中には、燃料供給手段としての
圧力制御弁０８が設けられている。As shown in the figure, in the fuel cell system of this embodiment using methanol as the liquid fuel, methanol 10 as the liquid fuel is stored in the reformed fuel tank 01 as a storage container. This reformed fuel tank 0
1 is provided with a pressurizing means comprising a small pressure cylinder 07 filled with a high pressure gas such as an inert gas. Also,
A pressure control valve 08 as a fuel supply unit is provided in the middle of the supply line of the inert gas filling the reforming fuel tank 01 from the pressure cylinder 07.
【００２１】圧力制御弁０８の調整により、圧力ボンベ
０７内の不活性ガスを改質燃料タンク０１内に注入する
ことにより、改質燃料タンク０１内の圧力は、メタノー
ル１０を改質燃料タンク０１内から排出して改質器０３
に供給し、改質器０３でメタノールを改質するに必要な
圧力を確保するとともに、さらに、改質器０３で改質さ
れた改質ガスを燃料電池本体０４に、燃料電池本体０４
の電池反応に必要な圧力で供給するのに必要な圧力（以
下規定圧力という）となるような、一定の圧力に制御さ
れている。さらに、燃料電池本体０４による発電の経過
とともに、改質燃料タンク０１内のメタノール１０が減
少すれば、圧力ボンベ０７中の不活性ガス等が、圧力制
御弁０８の調整によって改質燃料タンク０１に補充され
ていくことになる。By adjusting the pressure control valve 08 and injecting the inert gas in the pressure cylinder 07 into the reforming fuel tank 01, the pressure in the reforming fuel tank 01 changes the methanol 10 to the reforming fuel tank 01. Discharge from inside and reformer 03
To secure the pressure required to reform the methanol in the reformer 03, and further, the reformed gas reformed in the reformer 03 is supplied to the fuel cell main body 04 and the fuel cell main body 04.
The pressure is controlled to be constant so that the pressure required for the battery reaction of (1) (hereinafter referred to as the specified pressure) is reached. Further, if the amount of methanol 10 in the reformed fuel tank 01 decreases with the progress of power generation by the fuel cell main body 04, the inert gas or the like in the pressure cylinder 07 is stored in the reformed fuel tank 01 by adjusting the pressure control valve 08. Will be replenished.
【００２２】改質器０３に供給されたメタノール１０
は、高温の改質器０３の温度条件下で、触媒作用のもと
で、添加された水蒸気と反応して、水素リッチの改質ガ
スに改質される。この改質ガスは、燃料電池本体０４の
電池反応に必要な圧力に保持されて、燃料電池本体０４
へ燃料ガスとして供給される。一方、燃料電池本体０４
へ供給された改質ガス中の水素と電池反応する酸素を含
む酸化剤、例えば空気は、ターボ機械等で構成された酸
化剤供給装置０５により大気中から燃料電池本体０４に
供給される。Methanol 10 supplied to the reformer 03
Under the temperature condition of the high temperature reformer 03, it reacts with the added steam under a catalytic action to be reformed into a hydrogen-rich reformed gas. This reformed gas is kept at a pressure necessary for the cell reaction of the fuel cell body 04,
Is supplied as fuel gas. On the other hand, the fuel cell body 04
The oxidant containing oxygen, which reacts with hydrogen in the reformed gas supplied to the fuel cell, such as air, is supplied from the atmosphere to the fuel cell main body 04 by the oxidant supply device 05 including a turbomachine.
【００２３】燃料電池本体０４では、これら供給された
改質ガス中の水素と、酸化剤中の酸素との電池反応が、
触媒電極上で起こり発電が行われ、直流の電力が得ら
れ、得られた直流電力は、インバータ制御器０６で、所
定の周波数の交流出力に変換され、燃料電池システムか
ら出力され、種々の用途に供される。燃料電池本体０４
による発電の経過によって、改質燃料タンクのメタノー
ル１０がなくなってくれば、圧力制御弁０８を絞りこん
で、圧力ボンベ０７からの不活性ガスの改質燃料タンク
０１への流れ込みを止め、次に、改質燃料タンク０１を
開放し、充填されている不活性ガスを抜き出し、メタノ
ール１０を補追するか、又はメタノール１０の充填され
ている、別の改質燃料タンクから、同様の操作により、
メタノール１０を供給するようにすればよい。In the fuel cell main body 04, the cell reaction between hydrogen in the supplied reformed gas and oxygen in the oxidant is
Electric power is generated on the catalyst electrode to generate DC power, and the obtained DC power is converted into an AC output having a predetermined frequency by the inverter controller 06 and output from the fuel cell system for various purposes. Be used for. Fuel cell body 04
When the methanol 10 in the reformed fuel tank is exhausted due to the generation of electricity by, the pressure control valve 08 is narrowed down to stop the flow of the inert gas from the pressure cylinder 07 into the reformed fuel tank 01, and then , Open the reformed fuel tank 01, extract the filled inert gas, supplement the methanol 10, or from another reformed fuel tank filled with methanol 10 by the same operation,
Methanol 10 may be supplied.
【００２４】このように、本実施例では不活性ガスを充
填した小型の圧力ボンベ０７を、圧力制御弁０８を介し
て改質燃料タンク０１に接続し、メタノール１０を改質
器０３に供給し、改質するに必要な圧力を確保できるよ
うに、あるいは、メタノール１０を改質器０３に供給
し、改質するに必要な圧力を確保するとともに、さら
に、改質器０３で改質された改質ガスを燃料電池本体０
４にまで供給するのに必要な圧力を確保できるように、
圧力制御弁０３を介して不活性ガスでメタノール１０に
一定ガス圧をかけて供給するようにした。As described above, in this embodiment, the small pressure cylinder 07 filled with the inert gas is connected to the reforming fuel tank 01 through the pressure control valve 08, and the methanol 10 is supplied to the reformer 03. , So that the pressure necessary for reforming can be secured, or methanol 10 is supplied to the reformer 03 to secure the pressure required for reforming, and further reformed by the reformer 03. The reformed gas is supplied to the fuel cell body 0
In order to secure the pressure necessary to supply up to 4,
The methanol 10 was supplied with a constant gas pressure by an inert gas through the pressure control valve 03.
【００２５】これにより、圧力制御弁０８で、常に一定
ガス圧にされた圧力ボンベ０７からの不活性ガスによっ
て、改質燃料液面が押されるため、メタノール、または
改質ガスが脈流を打つことなく、安定した圧力で供給さ
れる。さらに、機械的装置による燃料供給法でないため
信頼性も高く、メンテナンスも容易である。As a result, the level of the reformed fuel is pushed by the inert gas from the pressure cylinder 07, which is always kept at a constant gas pressure by the pressure control valve 08, so that methanol or reformed gas strikes a pulsating flow. It is supplied at a stable pressure. Further, since the fuel supply method is not a mechanical device, the reliability is high and the maintenance is easy.
【００２６】以上、本発明の燃料電池システムの一実施
例について述べたが、本発明は上述した実施例に限定さ
れるものではなく、特許請求の範囲に示す技術的範囲内
のものを含むものである。すなわち、上述した実施例に
おいては、加圧手段として、小型の圧力ボンベ０７を使
用したものを示したが、これは高圧の気体を貯気する貯
気槽から、高圧気体を改質燃料タンク０１に導入するよ
うにしても良く、又は高圧状態では液状を示し、低圧状
態ではガス状になる作動媒体を使用することも出来るも
のである。また、液体燃料はメタノールばかりでなく、
他の液体燃料を使用することもできる。Although one embodiment of the fuel cell system of the present invention has been described above, the present invention is not limited to the above-mentioned embodiments, but includes those within the technical scope shown in the claims. . That is, in the above-described embodiment, the small pressure cylinder 07 is used as the pressurizing means, but this is the reforming fuel tank 01 for converting the high pressure gas into the high pressure gas from the storage tank for storing the high pressure gas. Alternatively, it is possible to use a working medium that is liquid in the high pressure state and is gaseous in the low pressure state. Also, the liquid fuel is not only methanol,
Other liquid fuels can also be used.
【００２７】さらには、燃料供給手段としての上述した
圧力制御弁０８を、改質燃料タンク０１と改質器０３と
の間に設けて、先に定義した規定圧力以上の圧力にされ
た改質燃料タンク０１内から排出されるメタノール１０
を規定圧力に制御するようにしても良いものである。Further, the above-described pressure control valve 08 as a fuel supply means is provided between the reforming fuel tank 01 and the reformer 03, and the reforming is performed at a pressure equal to or higher than the defined pressure defined above. Methanol 10 discharged from inside the fuel tank 01
May be controlled to a specified pressure.
【００２８】[0028]
【発明の効果】以上述べたように、本発明の燃料電池シ
ステムによれば、特許請求の範囲に示す構成により、改
質を行う液体燃料、または、改質器で改質された改質ガ
スが脈流を打つことなく、安定した圧力で、改質器、又
は燃料電池本体に供給される。このことにより、脈流の
防止策を不要にして安定した改質、および発電ができ
る。また、機械的装置がないため燃料電池システム全体
の信頼性が高くなる。メンテナンスも容易となることか
ら、システム全体を安くすることもできる。また、改質
器、または燃料電池本体への液体燃料、又は改質ガスの
供給に駆動源を必要としないため、起動操作が容易にな
るとともに、システムを簡単にすることができる。As described above, according to the fuel cell system of the present invention, the liquid fuel for reforming or the reformed gas reformed by the reformer has the structure described in the claims. Is supplied to the reformer or the fuel cell main body at a stable pressure without hitting a pulsating flow. As a result, stable reforming and power generation can be performed without the need for pulsating flow prevention measures. Further, since there is no mechanical device, the reliability of the entire fuel cell system is increased. Since the maintenance is easy, the whole system can be made cheap. Moreover, since a drive source is not required to supply the liquid fuel or the reformed gas to the reformer or the fuel cell main body, the starting operation becomes easy and the system can be simplified.
【図１】本発明の燃料電池システムの一実施例を示すブ
ロック図，FIG. 1 is a block diagram showing an embodiment of a fuel cell system of the present invention,
【図２】従来の燃料電池システムの一例を示すブロック
図である，FIG. 2 is a block diagram showing an example of a conventional fuel cell system,
０１ 改質燃料タンク ０２ 燃料供給ポンプ ０３ 改質器 ０４ 燃料電池本体 ０５ 酸化剤供給装置 ０６ インバータ制御装置 ０７ 圧力ボンベ ０８ 圧力制御弁 １０ メタノール 01 reformed fuel tank 02 fuel supply pump 03 reformer 04 fuel cell body 05 oxidant supply device 06 inverter control device 07 pressure cylinder 08 pressure control valve 10 methanol
Claims (2)
られ、前記改質器からの改質ガスを供給し、電池反応に
より発電を行う燃料電池を設けた燃料電池システムにお
いて、前記液体燃料を貯蔵する貯蔵容器の内部をガス圧
で加圧し、前記液体燃料を前記貯蔵容器から前記改質器
へ供給する加圧手段を設けたことを特徴とする燃料電池
システム。1. A fuel cell system comprising: a reformer that uses liquid fuel as reformed gas; and a fuel cell that supplies reformed gas from the reformer to generate electricity by a cell reaction. A fuel cell system comprising: a pressurizing unit that pressurizes the inside of a storage container for storing liquid fuel with gas pressure and supplies the liquid fuel from the storage container to the reformer.
の供給を、前記加圧手段により加圧される前記液体燃料
の圧力を制御して行う燃料供給手段を設けたことを特徴
とする請求項１の燃料電池システム。2. A fuel supply means for supplying the reformed gas from the reformer to the fuel cell by controlling the pressure of the liquid fuel pressurized by the pressurizing means. The fuel cell system according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02793795A JP3746530B2 (en) | 1995-02-16 | 1995-02-16 | Fuel cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02793795A JP3746530B2 (en) | 1995-02-16 | 1995-02-16 | Fuel cell system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08222253A true JPH08222253A (en) | 1996-08-30 |
| JP3746530B2 JP3746530B2 (en) | 2006-02-15 |
Family
ID=12234820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02793795A Expired - Fee Related JP3746530B2 (en) | 1995-02-16 | 1995-02-16 | Fuel cell system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3746530B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006185825A (en) * | 2004-12-28 | 2006-07-13 | Sony Corp | Fuel cell system |
| US7588854B2 (en) | 2005-10-21 | 2009-09-15 | Samsung Sdi Co., Ltd. | Fuel cell system having no fuel pump |
| JP2009301758A (en) * | 2008-06-10 | 2009-12-24 | Fujikura Ltd | Direct alcohol fuel cell |
-
1995
- 1995-02-16 JP JP02793795A patent/JP3746530B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006185825A (en) * | 2004-12-28 | 2006-07-13 | Sony Corp | Fuel cell system |
| US7588854B2 (en) | 2005-10-21 | 2009-09-15 | Samsung Sdi Co., Ltd. | Fuel cell system having no fuel pump |
| JP2009301758A (en) * | 2008-06-10 | 2009-12-24 | Fujikura Ltd | Direct alcohol fuel cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3746530B2 (en) | 2006-02-15 |
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